diff options
Diffstat (limited to 'arch/alpha/kernel')
78 files changed, 4207 insertions, 3896 deletions
diff --git a/arch/alpha/kernel/.gitignore b/arch/alpha/kernel/.gitignore new file mode 100644 index 00000000000..c5f676c3c22 --- /dev/null +++ b/arch/alpha/kernel/.gitignore @@ -0,0 +1 @@ +vmlinux.lds diff --git a/arch/alpha/kernel/Makefile b/arch/alpha/kernel/Makefile index dccf05245d4..3ecac0106c8 100644 --- a/arch/alpha/kernel/Makefile +++ b/arch/alpha/kernel/Makefile @@ -3,18 +3,21 @@ # extra-y := head.o vmlinux.lds -EXTRA_AFLAGS := $(KBUILD_CFLAGS) -EXTRA_CFLAGS := -Werror -Wno-sign-compare +asflags-y := $(KBUILD_CFLAGS) +ccflags-y := -Wno-sign-compare -obj-y := entry.o traps.o process.o init_task.o osf_sys.o irq.o \ - irq_alpha.o signal.o setup.o ptrace.o time.o semaphore.o \ +obj-y := entry.o traps.o process.o osf_sys.o irq.o \ + irq_alpha.o signal.o setup.o ptrace.o time.o \ alpha_ksyms.o systbls.o err_common.o io.o obj-$(CONFIG_VGA_HOSE) += console.o obj-$(CONFIG_SMP) += smp.o -obj-$(CONFIG_PCI) += pci.o pci_iommu.o +obj-$(CONFIG_PCI) += pci.o pci_iommu.o pci-sysfs.o obj-$(CONFIG_SRM_ENV) += srm_env.o obj-$(CONFIG_MODULES) += module.o +obj-$(CONFIG_PERF_EVENTS) += perf_event.o +obj-$(CONFIG_RTC_DRV_ALPHA) += rtc.o +obj-$(CONFIG_AUDIT) += audit.o ifdef CONFIG_ALPHA_GENERIC @@ -35,7 +38,7 @@ endif obj-y += irq_pyxis.o irq_i8259.o irq_srm.o obj-y += err_ev6.o -obj-y += es1888.o smc37c669.o smc37c93x.o ns87312.o gct.o +obj-y += es1888.o smc37c669.o smc37c93x.o pc873xx.o gct.o obj-y += srmcons.o else @@ -43,6 +46,10 @@ else # Misc support obj-$(CONFIG_ALPHA_SRM) += srmcons.o +ifdef CONFIG_BINFMT_AOUT +obj-y += binfmt_loader.o +endif + # Core logic support obj-$(CONFIG_ALPHA_APECS) += core_apecs.o obj-$(CONFIG_ALPHA_CIA) += core_cia.o @@ -59,11 +66,11 @@ obj-$(CONFIG_ALPHA_WILDFIRE) += core_wildfire.o # Board support obj-$(CONFIG_ALPHA_ALCOR) += sys_alcor.o irq_i8259.o irq_srm.o obj-$(CONFIG_ALPHA_CABRIOLET) += sys_cabriolet.o irq_i8259.o irq_srm.o \ - ns87312.o + pc873xx.o obj-$(CONFIG_ALPHA_EB164) += sys_cabriolet.o irq_i8259.o irq_srm.o \ - ns87312.o + pc873xx.o obj-$(CONFIG_ALPHA_EB66P) += sys_cabriolet.o irq_i8259.o irq_srm.o \ - ns87312.o + pc873xx.o obj-$(CONFIG_ALPHA_LX164) += sys_cabriolet.o irq_i8259.o irq_srm.o \ smc37c93x.o obj-$(CONFIG_ALPHA_PC164) += sys_cabriolet.o irq_i8259.o irq_srm.o \ @@ -86,14 +93,14 @@ obj-$(CONFIG_ALPHA_RUFFIAN) += sys_ruffian.o irq_pyxis.o irq_i8259.o obj-$(CONFIG_ALPHA_RX164) += sys_rx164.o irq_i8259.o obj-$(CONFIG_ALPHA_SABLE) += sys_sable.o obj-$(CONFIG_ALPHA_LYNX) += sys_sable.o -obj-$(CONFIG_ALPHA_BOOK1) += sys_sio.o irq_i8259.o irq_srm.o ns87312.o -obj-$(CONFIG_ALPHA_AVANTI) += sys_sio.o irq_i8259.o irq_srm.o ns87312.o -obj-$(CONFIG_ALPHA_NONAME) += sys_sio.o irq_i8259.o irq_srm.o ns87312.o -obj-$(CONFIG_ALPHA_P2K) += sys_sio.o irq_i8259.o irq_srm.o ns87312.o -obj-$(CONFIG_ALPHA_XL) += sys_sio.o irq_i8259.o irq_srm.o ns87312.o +obj-$(CONFIG_ALPHA_BOOK1) += sys_sio.o irq_i8259.o irq_srm.o pc873xx.o +obj-$(CONFIG_ALPHA_AVANTI) += sys_sio.o irq_i8259.o irq_srm.o pc873xx.o +obj-$(CONFIG_ALPHA_NONAME) += sys_sio.o irq_i8259.o irq_srm.o pc873xx.o +obj-$(CONFIG_ALPHA_P2K) += sys_sio.o irq_i8259.o irq_srm.o pc873xx.o +obj-$(CONFIG_ALPHA_XL) += sys_sio.o irq_i8259.o irq_srm.o pc873xx.o obj-$(CONFIG_ALPHA_SX164) += sys_sx164.o irq_pyxis.o irq_i8259.o \ irq_srm.o smc37c669.o -obj-$(CONFIG_ALPHA_TAKARA) += sys_takara.o irq_i8259.o ns87312.o +obj-$(CONFIG_ALPHA_TAKARA) += sys_takara.o irq_i8259.o pc873xx.o obj-$(CONFIG_ALPHA_WILDFIRE) += sys_wildfire.o irq_i8259.o # Error support diff --git a/arch/alpha/kernel/alpha_ksyms.c b/arch/alpha/kernel/alpha_ksyms.c index e9762a33b04..f4c7ab6f43b 100644 --- a/arch/alpha/kernel/alpha_ksyms.c +++ b/arch/alpha/kernel/alpha_ksyms.c @@ -40,6 +40,7 @@ EXPORT_SYMBOL(strrchr); EXPORT_SYMBOL(memmove); EXPORT_SYMBOL(__memcpy); EXPORT_SYMBOL(__memset); +EXPORT_SYMBOL(___memset); EXPORT_SYMBOL(__memsetw); EXPORT_SYMBOL(__constant_c_memset); EXPORT_SYMBOL(copy_page); @@ -50,10 +51,6 @@ EXPORT_SYMBOL(alpha_read_fp_reg_s); EXPORT_SYMBOL(alpha_write_fp_reg); EXPORT_SYMBOL(alpha_write_fp_reg_s); -/* entry.S */ -EXPORT_SYMBOL(kernel_thread); -EXPORT_SYMBOL(kernel_execve); - /* Networking helper routines. */ EXPORT_SYMBOL(csum_tcpudp_magic); EXPORT_SYMBOL(ip_compute_csum); @@ -74,17 +71,6 @@ EXPORT_SYMBOL(alpha_fp_emul); */ EXPORT_SYMBOL(__copy_user); EXPORT_SYMBOL(__do_clear_user); -EXPORT_SYMBOL(__strncpy_from_user); -EXPORT_SYMBOL(__strnlen_user); - -/* Semaphore helper functions. */ -EXPORT_SYMBOL(__down_failed); -EXPORT_SYMBOL(__down_failed_interruptible); -EXPORT_SYMBOL(__up_wakeup); -EXPORT_SYMBOL(down); -EXPORT_SYMBOL(down_interruptible); -EXPORT_SYMBOL(down_trylock); -EXPORT_SYMBOL(up); /* * SMP-specific symbols. diff --git a/arch/alpha/kernel/asm-offsets.c b/arch/alpha/kernel/asm-offsets.c index 6c56c754a0b..6ff8886e7e2 100644 --- a/arch/alpha/kernel/asm-offsets.c +++ b/arch/alpha/kernel/asm-offsets.c @@ -8,13 +8,9 @@ #include <linux/stddef.h> #include <linux/sched.h> #include <linux/ptrace.h> +#include <linux/kbuild.h> #include <asm/io.h> -#define DEFINE(sym, val) \ - asm volatile("\n->" #sym " %0 " #val : : "i" (val)) - -#define BLANK() asm volatile("\n->" : : ) - void foo(void) { DEFINE(TI_TASK, offsetof(struct thread_info, task)); @@ -23,15 +19,18 @@ void foo(void) BLANK(); DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked)); - DEFINE(TASK_UID, offsetof(struct task_struct, uid)); - DEFINE(TASK_EUID, offsetof(struct task_struct, euid)); - DEFINE(TASK_GID, offsetof(struct task_struct, gid)); - DEFINE(TASK_EGID, offsetof(struct task_struct, egid)); + DEFINE(TASK_CRED, offsetof(struct task_struct, cred)); DEFINE(TASK_REAL_PARENT, offsetof(struct task_struct, real_parent)); DEFINE(TASK_GROUP_LEADER, offsetof(struct task_struct, group_leader)); DEFINE(TASK_TGID, offsetof(struct task_struct, tgid)); BLANK(); + DEFINE(CRED_UID, offsetof(struct cred, uid)); + DEFINE(CRED_EUID, offsetof(struct cred, euid)); + DEFINE(CRED_GID, offsetof(struct cred, gid)); + DEFINE(CRED_EGID, offsetof(struct cred, egid)); + BLANK(); + DEFINE(SIZEOF_PT_REGS, sizeof(struct pt_regs)); DEFINE(PT_PTRACED, PT_PTRACED); DEFINE(CLONE_VM, CLONE_VM); diff --git a/arch/alpha/kernel/audit.c b/arch/alpha/kernel/audit.c new file mode 100644 index 00000000000..96a9d18ff4c --- /dev/null +++ b/arch/alpha/kernel/audit.c @@ -0,0 +1,60 @@ +#include <linux/init.h> +#include <linux/types.h> +#include <linux/audit.h> +#include <asm/unistd.h> + +static unsigned dir_class[] = { +#include <asm-generic/audit_dir_write.h> +~0U +}; + +static unsigned read_class[] = { +#include <asm-generic/audit_read.h> +~0U +}; + +static unsigned write_class[] = { +#include <asm-generic/audit_write.h> +~0U +}; + +static unsigned chattr_class[] = { +#include <asm-generic/audit_change_attr.h> +~0U +}; + +static unsigned signal_class[] = { +#include <asm-generic/audit_signal.h> +~0U +}; + +int audit_classify_arch(int arch) +{ + return 0; +} + +int audit_classify_syscall(int abi, unsigned syscall) +{ + switch(syscall) { + case __NR_open: + return 2; + case __NR_openat: + return 3; + case __NR_execve: + return 5; + default: + return 0; + } +} + +static int __init audit_classes_init(void) +{ + audit_register_class(AUDIT_CLASS_WRITE, write_class); + audit_register_class(AUDIT_CLASS_READ, read_class); + audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class); + audit_register_class(AUDIT_CLASS_CHATTR, chattr_class); + audit_register_class(AUDIT_CLASS_SIGNAL, signal_class); + return 0; +} + +__initcall(audit_classes_init); diff --git a/arch/alpha/kernel/binfmt_loader.c b/arch/alpha/kernel/binfmt_loader.c new file mode 100644 index 00000000000..9525660c93c --- /dev/null +++ b/arch/alpha/kernel/binfmt_loader.c @@ -0,0 +1,52 @@ +#include <linux/init.h> +#include <linux/fs.h> +#include <linux/file.h> +#include <linux/mm_types.h> +#include <linux/binfmts.h> +#include <linux/a.out.h> + +static int load_binary(struct linux_binprm *bprm) +{ + struct exec *eh = (struct exec *)bprm->buf; + unsigned long loader; + struct file *file; + int retval; + + if (eh->fh.f_magic != 0x183 || (eh->fh.f_flags & 0x3000) != 0x3000) + return -ENOEXEC; + + if (bprm->loader) + return -ENOEXEC; + + allow_write_access(bprm->file); + fput(bprm->file); + bprm->file = NULL; + + loader = bprm->vma->vm_end - sizeof(void *); + + file = open_exec("/sbin/loader"); + retval = PTR_ERR(file); + if (IS_ERR(file)) + return retval; + + /* Remember if the application is TASO. */ + bprm->taso = eh->ah.entry < 0x100000000UL; + + bprm->file = file; + bprm->loader = loader; + retval = prepare_binprm(bprm); + if (retval < 0) + return retval; + return search_binary_handler(bprm); +} + +static struct linux_binfmt loader_format = { + .load_binary = load_binary, +}; + +static int __init init_loader_binfmt(void) +{ + insert_binfmt(&loader_format); + return 0; +} +arch_initcall(init_loader_binfmt); diff --git a/arch/alpha/kernel/console.c b/arch/alpha/kernel/console.c index da711e37fc9..6a61deed4a8 100644 --- a/arch/alpha/kernel/console.c +++ b/arch/alpha/kernel/console.c @@ -61,7 +61,9 @@ locate_and_init_vga(void *(*sel_func)(void *, void *)) /* Set the VGA hose and init the new console. */ pci_vga_hose = hose; - take_over_console(&vga_con, 0, MAX_NR_CONSOLES-1, 1); + console_lock(); + do_take_over_console(&vga_con, 0, MAX_NR_CONSOLES-1, 1); + console_unlock(); } void __init diff --git a/arch/alpha/kernel/core_apecs.c b/arch/alpha/kernel/core_apecs.c index ca46b2c2445..708c831efa7 100644 --- a/arch/alpha/kernel/core_apecs.c +++ b/arch/alpha/kernel/core_apecs.c @@ -21,6 +21,7 @@ #include <asm/ptrace.h> #include <asm/smp.h> +#include <asm/mce.h> #include "proto.h" #include "pci_impl.h" diff --git a/arch/alpha/kernel/core_cia.c b/arch/alpha/kernel/core_cia.c index 1d6ee6c985f..c44339e176c 100644 --- a/arch/alpha/kernel/core_cia.c +++ b/arch/alpha/kernel/core_cia.c @@ -23,6 +23,7 @@ #include <linux/bootmem.h> #include <asm/ptrace.h> +#include <asm/mce.h> #include "proto.h" #include "pci_impl.h" diff --git a/arch/alpha/kernel/core_irongate.c b/arch/alpha/kernel/core_irongate.c index a872078497b..00096df0f6a 100644 --- a/arch/alpha/kernel/core_irongate.c +++ b/arch/alpha/kernel/core_irongate.c @@ -303,6 +303,7 @@ irongate_init_arch(void) #include <linux/vmalloc.h> #include <linux/agp_backend.h> #include <linux/agpgart.h> +#include <linux/export.h> #include <asm/pgalloc.h> #define GET_PAGE_DIR_OFF(addr) (addr >> 22) diff --git a/arch/alpha/kernel/core_lca.c b/arch/alpha/kernel/core_lca.c index 4843f6ec9f3..cb2801cfd3d 100644 --- a/arch/alpha/kernel/core_lca.c +++ b/arch/alpha/kernel/core_lca.c @@ -133,7 +133,7 @@ conf_read(unsigned long addr) local_irq_save(flags); - /* Reset status register to avoid loosing errors. */ + /* Reset status register to avoid losing errors. */ stat0 = *(vulp)LCA_IOC_STAT0; *(vulp)LCA_IOC_STAT0 = stat0; mb(); @@ -170,7 +170,7 @@ conf_write(unsigned long addr, unsigned int value) local_irq_save(flags); /* avoid getting hit by machine check */ - /* Reset status register to avoid loosing errors. */ + /* Reset status register to avoid losing errors. */ stat0 = *(vulp)LCA_IOC_STAT0; *(vulp)LCA_IOC_STAT0 = stat0; mb(); diff --git a/arch/alpha/kernel/core_marvel.c b/arch/alpha/kernel/core_marvel.c index f10d2eddd2c..53dd2f1a53a 100644 --- a/arch/alpha/kernel/core_marvel.c +++ b/arch/alpha/kernel/core_marvel.c @@ -655,20 +655,12 @@ __marvel_rtc_io(u8 b, unsigned long addr, int write) case 0x71: /* RTC_PORT(1) */ rtc_access.index = index; - rtc_access.data = BCD_TO_BIN(b); + rtc_access.data = bcd2bin(b); rtc_access.function = 0x48 + !write; /* GET/PUT_TOY */ -#ifdef CONFIG_SMP - if (smp_processor_id() != boot_cpuid) - smp_call_function_on_cpu(__marvel_access_rtc, - &rtc_access, 1, 1, - cpumask_of_cpu(boot_cpuid)); - else - __marvel_access_rtc(&rtc_access); -#else __marvel_access_rtc(&rtc_access); -#endif - ret = BIN_TO_BCD(rtc_access.data); + + ret = bin2bcd(rtc_access.data); break; default: @@ -994,7 +986,7 @@ marvel_agp_configure(alpha_agp_info *agp) * rate, but warn the user. */ printk("%s: unknown PLL setting RNGB=%lx (PLL6_CTL=%016lx)\n", - __FUNCTION__, IO7_PLL_RNGB(agp_pll), agp_pll); + __func__, IO7_PLL_RNGB(agp_pll), agp_pll); break; } @@ -1024,7 +1016,7 @@ marvel_agp_bind_memory(alpha_agp_info *agp, off_t pg_start, struct agp_memory *m { struct marvel_agp_aperture *aper = agp->aperture.sysdata; return iommu_bind(aper->arena, aper->pg_start + pg_start, - mem->page_count, mem->memory); + mem->page_count, mem->pages); } static int @@ -1044,13 +1036,13 @@ marvel_agp_translate(alpha_agp_info *agp, dma_addr_t addr) if (addr < agp->aperture.bus_base || addr >= agp->aperture.bus_base + agp->aperture.size) { - printk("%s: addr out of range\n", __FUNCTION__); + printk("%s: addr out of range\n", __func__); return -EINVAL; } pte = aper->arena->ptes[baddr >> PAGE_SHIFT]; if (!(pte & 1)) { - printk("%s: pte not valid\n", __FUNCTION__); + printk("%s: pte not valid\n", __func__); return -EINVAL; } return (pte >> 1) << PAGE_SHIFT; @@ -1111,6 +1103,8 @@ marvel_agp_info(void) * Allocate the info structure. */ agp = kmalloc(sizeof(*agp), GFP_KERNEL); + if (!agp) + return NULL; /* * Fill it in. diff --git a/arch/alpha/kernel/core_mcpcia.c b/arch/alpha/kernel/core_mcpcia.c index 381fec0af52..da7bcc372f1 100644 --- a/arch/alpha/kernel/core_mcpcia.c +++ b/arch/alpha/kernel/core_mcpcia.c @@ -88,7 +88,7 @@ conf_read(unsigned long addr, unsigned char type1, { unsigned long flags; unsigned long mid = MCPCIA_HOSE2MID(hose->index); - unsigned int stat0, value, temp, cpu; + unsigned int stat0, value, cpu; cpu = smp_processor_id(); @@ -101,7 +101,7 @@ conf_read(unsigned long addr, unsigned char type1, stat0 = *(vuip)MCPCIA_CAP_ERR(mid); *(vuip)MCPCIA_CAP_ERR(mid) = stat0; mb(); - temp = *(vuip)MCPCIA_CAP_ERR(mid); + *(vuip)MCPCIA_CAP_ERR(mid); DBG_CFG(("conf_read: MCPCIA_CAP_ERR(%d) was 0x%x\n", mid, stat0)); mb(); @@ -136,7 +136,7 @@ conf_write(unsigned long addr, unsigned int value, unsigned char type1, { unsigned long flags; unsigned long mid = MCPCIA_HOSE2MID(hose->index); - unsigned int stat0, temp, cpu; + unsigned int stat0, cpu; cpu = smp_processor_id(); @@ -145,7 +145,7 @@ conf_write(unsigned long addr, unsigned int value, unsigned char type1, /* Reset status register to avoid losing errors. */ stat0 = *(vuip)MCPCIA_CAP_ERR(mid); *(vuip)MCPCIA_CAP_ERR(mid) = stat0; mb(); - temp = *(vuip)MCPCIA_CAP_ERR(mid); + *(vuip)MCPCIA_CAP_ERR(mid); DBG_CFG(("conf_write: MCPCIA CAP_ERR(%d) was 0x%x\n", mid, stat0)); draina(); @@ -157,7 +157,7 @@ conf_write(unsigned long addr, unsigned int value, unsigned char type1, *((vuip)addr) = value; mb(); mb(); /* magic */ - temp = *(vuip)MCPCIA_CAP_ERR(mid); /* read to force the write */ + *(vuip)MCPCIA_CAP_ERR(mid); /* read to force the write */ mcheck_expected(cpu) = 0; mb(); @@ -572,12 +572,10 @@ mcpcia_print_system_area(unsigned long la_ptr) void mcpcia_machine_check(unsigned long vector, unsigned long la_ptr) { - struct el_common *mchk_header; struct el_MCPCIA_uncorrected_frame_mcheck *mchk_logout; unsigned int cpu = smp_processor_id(); int expected; - mchk_header = (struct el_common *)la_ptr; mchk_logout = (struct el_MCPCIA_uncorrected_frame_mcheck *)la_ptr; expected = mcheck_expected(cpu); diff --git a/arch/alpha/kernel/core_t2.c b/arch/alpha/kernel/core_t2.c index f5ca5255eb0..3ada4f7b085 100644 --- a/arch/alpha/kernel/core_t2.c +++ b/arch/alpha/kernel/core_t2.c @@ -21,6 +21,7 @@ #include <asm/ptrace.h> #include <asm/delay.h> +#include <asm/mce.h> #include "proto.h" #include "pci_impl.h" @@ -336,10 +337,7 @@ t2_direct_map_window1(unsigned long base, unsigned long length) #if DEBUG_PRINT_FINAL_SETTINGS printk("%s: setting WBASE1=0x%lx WMASK1=0x%lx TBASE1=0x%lx\n", - __FUNCTION__, - *(vulp)T2_WBASE1, - *(vulp)T2_WMASK1, - *(vulp)T2_TBASE1); + __func__, *(vulp)T2_WBASE1, *(vulp)T2_WMASK1, *(vulp)T2_TBASE1); #endif } @@ -366,10 +364,7 @@ t2_sg_map_window2(struct pci_controller *hose, #if DEBUG_PRINT_FINAL_SETTINGS printk("%s: setting WBASE2=0x%lx WMASK2=0x%lx TBASE2=0x%lx\n", - __FUNCTION__, - *(vulp)T2_WBASE2, - *(vulp)T2_WMASK2, - *(vulp)T2_TBASE2); + __func__, *(vulp)T2_WBASE2, *(vulp)T2_WMASK2, *(vulp)T2_TBASE2); #endif } @@ -377,15 +372,15 @@ static void __init t2_save_configuration(void) { #if DEBUG_PRINT_INITIAL_SETTINGS - printk("%s: HAE_1 was 0x%lx\n", __FUNCTION__, srm_hae); /* HW is 0 */ - printk("%s: HAE_2 was 0x%lx\n", __FUNCTION__, *(vulp)T2_HAE_2); - printk("%s: HAE_3 was 0x%lx\n", __FUNCTION__, *(vulp)T2_HAE_3); - printk("%s: HAE_4 was 0x%lx\n", __FUNCTION__, *(vulp)T2_HAE_4); - printk("%s: HBASE was 0x%lx\n", __FUNCTION__, *(vulp)T2_HBASE); + printk("%s: HAE_1 was 0x%lx\n", __func__, srm_hae); /* HW is 0 */ + printk("%s: HAE_2 was 0x%lx\n", __func__, *(vulp)T2_HAE_2); + printk("%s: HAE_3 was 0x%lx\n", __func__, *(vulp)T2_HAE_3); + printk("%s: HAE_4 was 0x%lx\n", __func__, *(vulp)T2_HAE_4); + printk("%s: HBASE was 0x%lx\n", __func__, *(vulp)T2_HBASE); - printk("%s: WBASE1=0x%lx WMASK1=0x%lx TBASE1=0x%lx\n", __FUNCTION__, + printk("%s: WBASE1=0x%lx WMASK1=0x%lx TBASE1=0x%lx\n", __func__, *(vulp)T2_WBASE1, *(vulp)T2_WMASK1, *(vulp)T2_TBASE1); - printk("%s: WBASE2=0x%lx WMASK2=0x%lx TBASE2=0x%lx\n", __FUNCTION__, + printk("%s: WBASE2=0x%lx WMASK2=0x%lx TBASE2=0x%lx\n", __func__, *(vulp)T2_WBASE2, *(vulp)T2_WMASK2, *(vulp)T2_TBASE2); #endif @@ -410,6 +405,7 @@ void __init t2_init_arch(void) { struct pci_controller *hose; + struct resource *hae_mem; unsigned long temp; unsigned int i; @@ -437,7 +433,13 @@ t2_init_arch(void) */ pci_isa_hose = hose = alloc_pci_controller(); hose->io_space = &ioport_resource; - hose->mem_space = &iomem_resource; + hae_mem = alloc_resource(); + hae_mem->start = 0; + hae_mem->end = T2_MEM_R1_MASK; + hae_mem->name = pci_hae0_name; + if (request_resource(&iomem_resource, hae_mem) < 0) + printk(KERN_ERR "Failed to request HAE_MEM\n"); + hose->mem_space = hae_mem; hose->index = 0; hose->sparse_mem_base = T2_SPARSE_MEM - IDENT_ADDR; diff --git a/arch/alpha/kernel/core_titan.c b/arch/alpha/kernel/core_titan.c index 819326627b9..219bf271c0b 100644 --- a/arch/alpha/kernel/core_titan.c +++ b/arch/alpha/kernel/core_titan.c @@ -365,21 +365,21 @@ void __init titan_init_arch(void) { #if 0 - printk("%s: titan_init_arch()\n", __FUNCTION__); - printk("%s: CChip registers:\n", __FUNCTION__); - printk("%s: CSR_CSC 0x%lx\n", __FUNCTION__, TITAN_cchip->csc.csr); - printk("%s: CSR_MTR 0x%lx\n", __FUNCTION__, TITAN_cchip->mtr.csr); - printk("%s: CSR_MISC 0x%lx\n", __FUNCTION__, TITAN_cchip->misc.csr); - printk("%s: CSR_DIM0 0x%lx\n", __FUNCTION__, TITAN_cchip->dim0.csr); - printk("%s: CSR_DIM1 0x%lx\n", __FUNCTION__, TITAN_cchip->dim1.csr); - printk("%s: CSR_DIR0 0x%lx\n", __FUNCTION__, TITAN_cchip->dir0.csr); - printk("%s: CSR_DIR1 0x%lx\n", __FUNCTION__, TITAN_cchip->dir1.csr); - printk("%s: CSR_DRIR 0x%lx\n", __FUNCTION__, TITAN_cchip->drir.csr); - - printk("%s: DChip registers:\n", __FUNCTION__); - printk("%s: CSR_DSC 0x%lx\n", __FUNCTION__, TITAN_dchip->dsc.csr); - printk("%s: CSR_STR 0x%lx\n", __FUNCTION__, TITAN_dchip->str.csr); - printk("%s: CSR_DREV 0x%lx\n", __FUNCTION__, TITAN_dchip->drev.csr); + printk("%s: titan_init_arch()\n", __func__); + printk("%s: CChip registers:\n", __func__); + printk("%s: CSR_CSC 0x%lx\n", __func__, TITAN_cchip->csc.csr); + printk("%s: CSR_MTR 0x%lx\n", __func__, TITAN_cchip->mtr.csr); + printk("%s: CSR_MISC 0x%lx\n", __func__, TITAN_cchip->misc.csr); + printk("%s: CSR_DIM0 0x%lx\n", __func__, TITAN_cchip->dim0.csr); + printk("%s: CSR_DIM1 0x%lx\n", __func__, TITAN_cchip->dim1.csr); + printk("%s: CSR_DIR0 0x%lx\n", __func__, TITAN_cchip->dir0.csr); + printk("%s: CSR_DIR1 0x%lx\n", __func__, TITAN_cchip->dir1.csr); + printk("%s: CSR_DRIR 0x%lx\n", __func__, TITAN_cchip->drir.csr); + + printk("%s: DChip registers:\n", __func__); + printk("%s: CSR_DSC 0x%lx\n", __func__, TITAN_dchip->dsc.csr); + printk("%s: CSR_STR 0x%lx\n", __func__, TITAN_dchip->str.csr); + printk("%s: CSR_DREV 0x%lx\n", __func__, TITAN_dchip->drev.csr); #endif boot_cpuid = __hard_smp_processor_id(); @@ -680,7 +680,7 @@ titan_agp_bind_memory(alpha_agp_info *agp, off_t pg_start, struct agp_memory *me { struct titan_agp_aperture *aper = agp->aperture.sysdata; return iommu_bind(aper->arena, aper->pg_start + pg_start, - mem->page_count, mem->memory); + mem->page_count, mem->pages); } static int @@ -700,13 +700,13 @@ titan_agp_translate(alpha_agp_info *agp, dma_addr_t addr) if (addr < agp->aperture.bus_base || addr >= agp->aperture.bus_base + agp->aperture.size) { - printk("%s: addr out of range\n", __FUNCTION__); + printk("%s: addr out of range\n", __func__); return -EINVAL; } pte = aper->arena->ptes[baddr >> PAGE_SHIFT]; if (!(pte & 1)) { - printk("%s: pte not valid\n", __FUNCTION__); + printk("%s: pte not valid\n", __func__); return -EINVAL; } @@ -757,6 +757,8 @@ titan_agp_info(void) * Allocate the info structure. */ agp = kmalloc(sizeof(*agp), GFP_KERNEL); + if (!agp) + return NULL; /* * Fill it in. diff --git a/arch/alpha/kernel/core_tsunami.c b/arch/alpha/kernel/core_tsunami.c index ef91e09590d..61893d7bdda 100644 --- a/arch/alpha/kernel/core_tsunami.c +++ b/arch/alpha/kernel/core_tsunami.c @@ -11,6 +11,7 @@ #include <asm/core_tsunami.h> #undef __EXTERN_INLINE +#include <linux/module.h> #include <linux/types.h> #include <linux/pci.h> #include <linux/sched.h> @@ -241,8 +242,6 @@ tsunami_probe_write(volatile unsigned long *vaddr) #define tsunami_probe_read(ADDR) 1 #endif /* NXM_MACHINE_CHECKS_ON_TSUNAMI */ -#define FN __FUNCTION__ - static void __init tsunami_init_one_pchip(tsunami_pchip *pchip, int index) { @@ -383,27 +382,27 @@ tsunami_init_arch(void) /* NXMs just don't matter to Tsunami--unless they make it choke completely. */ tmp = (unsigned long)(TSUNAMI_cchip - 1); - printk("%s: probing bogus address: 0x%016lx\n", FN, bogus_addr); + printk("%s: probing bogus address: 0x%016lx\n", __func__, bogus_addr); printk("\tprobe %s\n", tsunami_probe_write((unsigned long *)bogus_addr) ? "succeeded" : "failed"); #endif /* NXM_MACHINE_CHECKS_ON_TSUNAMI */ #if 0 - printk("%s: CChip registers:\n", FN); - printk("%s: CSR_CSC 0x%lx\n", FN, TSUNAMI_cchip->csc.csr); - printk("%s: CSR_MTR 0x%lx\n", FN, TSUNAMI_cchip.mtr.csr); - printk("%s: CSR_MISC 0x%lx\n", FN, TSUNAMI_cchip->misc.csr); - printk("%s: CSR_DIM0 0x%lx\n", FN, TSUNAMI_cchip->dim0.csr); - printk("%s: CSR_DIM1 0x%lx\n", FN, TSUNAMI_cchip->dim1.csr); - printk("%s: CSR_DIR0 0x%lx\n", FN, TSUNAMI_cchip->dir0.csr); - printk("%s: CSR_DIR1 0x%lx\n", FN, TSUNAMI_cchip->dir1.csr); - printk("%s: CSR_DRIR 0x%lx\n", FN, TSUNAMI_cchip->drir.csr); + printk("%s: CChip registers:\n", __func__); + printk("%s: CSR_CSC 0x%lx\n", __func__, TSUNAMI_cchip->csc.csr); + printk("%s: CSR_MTR 0x%lx\n", __func__, TSUNAMI_cchip.mtr.csr); + printk("%s: CSR_MISC 0x%lx\n", __func__, TSUNAMI_cchip->misc.csr); + printk("%s: CSR_DIM0 0x%lx\n", __func__, TSUNAMI_cchip->dim0.csr); + printk("%s: CSR_DIM1 0x%lx\n", __func__, TSUNAMI_cchip->dim1.csr); + printk("%s: CSR_DIR0 0x%lx\n", __func__, TSUNAMI_cchip->dir0.csr); + printk("%s: CSR_DIR1 0x%lx\n", __func__, TSUNAMI_cchip->dir1.csr); + printk("%s: CSR_DRIR 0x%lx\n", __func__, TSUNAMI_cchip->drir.csr); printk("%s: DChip registers:\n"); - printk("%s: CSR_DSC 0x%lx\n", FN, TSUNAMI_dchip->dsc.csr); - printk("%s: CSR_STR 0x%lx\n", FN, TSUNAMI_dchip->str.csr); - printk("%s: CSR_DREV 0x%lx\n", FN, TSUNAMI_dchip->drev.csr); + printk("%s: CSR_DSC 0x%lx\n", __func__, TSUNAMI_dchip->dsc.csr); + printk("%s: CSR_STR 0x%lx\n", __func__, TSUNAMI_dchip->str.csr); + printk("%s: CSR_DREV 0x%lx\n", __func__, TSUNAMI_dchip->drev.csr); #endif /* With multiple PCI busses, we play with I/O as physical addrs. */ ioport_resource.end = ~0UL; diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S index 5fc61e281ac..98703d99b56 100644 --- a/arch/alpha/kernel/entry.S +++ b/arch/alpha/kernel/entry.S @@ -12,11 +12,32 @@ .text .set noat + .cfi_sections .debug_frame /* Stack offsets. */ #define SP_OFF 184 #define SWITCH_STACK_SIZE 320 +.macro CFI_START_OSF_FRAME func + .align 4 + .globl \func + .type \func,@function +\func: + .cfi_startproc simple + .cfi_return_column 64 + .cfi_def_cfa $sp, 48 + .cfi_rel_offset 64, 8 + .cfi_rel_offset $gp, 16 + .cfi_rel_offset $16, 24 + .cfi_rel_offset $17, 32 + .cfi_rel_offset $18, 40 +.endm + +.macro CFI_END_OSF_FRAME func + .cfi_endproc + .size \func, . - \func +.endm + /* * This defines the normal kernel pt-regs layout. * @@ -27,102 +48,158 @@ * the palcode-provided values are available to the signal handler. */ -#define SAVE_ALL \ - subq $sp, SP_OFF, $sp; \ - stq $0, 0($sp); \ - stq $1, 8($sp); \ - stq $2, 16($sp); \ - stq $3, 24($sp); \ - stq $4, 32($sp); \ - stq $28, 144($sp); \ - lda $2, alpha_mv; \ - stq $5, 40($sp); \ - stq $6, 48($sp); \ - stq $7, 56($sp); \ - stq $8, 64($sp); \ - stq $19, 72($sp); \ - stq $20, 80($sp); \ - stq $21, 88($sp); \ - ldq $2, HAE_CACHE($2); \ - stq $22, 96($sp); \ - stq $23, 104($sp); \ - stq $24, 112($sp); \ - stq $25, 120($sp); \ - stq $26, 128($sp); \ - stq $27, 136($sp); \ - stq $2, 152($sp); \ - stq $16, 160($sp); \ - stq $17, 168($sp); \ +.macro SAVE_ALL + subq $sp, SP_OFF, $sp + .cfi_adjust_cfa_offset SP_OFF + stq $0, 0($sp) + stq $1, 8($sp) + stq $2, 16($sp) + stq $3, 24($sp) + stq $4, 32($sp) + stq $28, 144($sp) + .cfi_rel_offset $0, 0 + .cfi_rel_offset $1, 8 + .cfi_rel_offset $2, 16 + .cfi_rel_offset $3, 24 + .cfi_rel_offset $4, 32 + .cfi_rel_offset $28, 144 + lda $2, alpha_mv + stq $5, 40($sp) + stq $6, 48($sp) + stq $7, 56($sp) + stq $8, 64($sp) + stq $19, 72($sp) + stq $20, 80($sp) + stq $21, 88($sp) + ldq $2, HAE_CACHE($2) + stq $22, 96($sp) + stq $23, 104($sp) + stq $24, 112($sp) + stq $25, 120($sp) + stq $26, 128($sp) + stq $27, 136($sp) + stq $2, 152($sp) + stq $16, 160($sp) + stq $17, 168($sp) stq $18, 176($sp) - -#define RESTORE_ALL \ - lda $19, alpha_mv; \ - ldq $0, 0($sp); \ - ldq $1, 8($sp); \ - ldq $2, 16($sp); \ - ldq $3, 24($sp); \ - ldq $21, 152($sp); \ - ldq $20, HAE_CACHE($19); \ - ldq $4, 32($sp); \ - ldq $5, 40($sp); \ - ldq $6, 48($sp); \ - ldq $7, 56($sp); \ - subq $20, $21, $20; \ - ldq $8, 64($sp); \ - beq $20, 99f; \ - ldq $20, HAE_REG($19); \ - stq $21, HAE_CACHE($19); \ - stq $21, 0($20); \ - ldq $0, 0($sp); \ - ldq $1, 8($sp); \ -99:; \ - ldq $19, 72($sp); \ - ldq $20, 80($sp); \ - ldq $21, 88($sp); \ - ldq $22, 96($sp); \ - ldq $23, 104($sp); \ - ldq $24, 112($sp); \ - ldq $25, 120($sp); \ - ldq $26, 128($sp); \ - ldq $27, 136($sp); \ - ldq $28, 144($sp); \ + .cfi_rel_offset $5, 40 + .cfi_rel_offset $6, 48 + .cfi_rel_offset $7, 56 + .cfi_rel_offset $8, 64 + .cfi_rel_offset $19, 72 + .cfi_rel_offset $20, 80 + .cfi_rel_offset $21, 88 + .cfi_rel_offset $22, 96 + .cfi_rel_offset $23, 104 + .cfi_rel_offset $24, 112 + .cfi_rel_offset $25, 120 + .cfi_rel_offset $26, 128 + .cfi_rel_offset $27, 136 +.endm + +.macro RESTORE_ALL + lda $19, alpha_mv + ldq $0, 0($sp) + ldq $1, 8($sp) + ldq $2, 16($sp) + ldq $3, 24($sp) + ldq $21, 152($sp) + ldq $20, HAE_CACHE($19) + ldq $4, 32($sp) + ldq $5, 40($sp) + ldq $6, 48($sp) + ldq $7, 56($sp) + subq $20, $21, $20 + ldq $8, 64($sp) + beq $20, 99f + ldq $20, HAE_REG($19) + stq $21, HAE_CACHE($19) + stq $21, 0($20) +99: ldq $19, 72($sp) + ldq $20, 80($sp) + ldq $21, 88($sp) + ldq $22, 96($sp) + ldq $23, 104($sp) + ldq $24, 112($sp) + ldq $25, 120($sp) + ldq $26, 128($sp) + ldq $27, 136($sp) + ldq $28, 144($sp) addq $sp, SP_OFF, $sp + .cfi_restore $0 + .cfi_restore $1 + .cfi_restore $2 + .cfi_restore $3 + .cfi_restore $4 + .cfi_restore $5 + .cfi_restore $6 + .cfi_restore $7 + .cfi_restore $8 + .cfi_restore $19 + .cfi_restore $20 + .cfi_restore $21 + .cfi_restore $22 + .cfi_restore $23 + .cfi_restore $24 + .cfi_restore $25 + .cfi_restore $26 + .cfi_restore $27 + .cfi_restore $28 + .cfi_adjust_cfa_offset -SP_OFF +.endm + +.macro DO_SWITCH_STACK + bsr $1, do_switch_stack + .cfi_adjust_cfa_offset SWITCH_STACK_SIZE + .cfi_rel_offset $9, 0 + .cfi_rel_offset $10, 8 + .cfi_rel_offset $11, 16 + .cfi_rel_offset $12, 24 + .cfi_rel_offset $13, 32 + .cfi_rel_offset $14, 40 + .cfi_rel_offset $15, 48 + /* We don't really care about the FP registers for debugging. */ +.endm + +.macro UNDO_SWITCH_STACK + bsr $1, undo_switch_stack + .cfi_restore $9 + .cfi_restore $10 + .cfi_restore $11 + .cfi_restore $12 + .cfi_restore $13 + .cfi_restore $14 + .cfi_restore $15 + .cfi_adjust_cfa_offset -SWITCH_STACK_SIZE +.endm /* * Non-syscall kernel entry points. */ - .align 4 - .globl entInt - .ent entInt -entInt: +CFI_START_OSF_FRAME entInt SAVE_ALL lda $8, 0x3fff lda $26, ret_from_sys_call bic $sp, $8, $8 mov $sp, $19 jsr $31, do_entInt -.end entInt +CFI_END_OSF_FRAME entInt - .align 4 - .globl entArith - .ent entArith -entArith: +CFI_START_OSF_FRAME entArith SAVE_ALL lda $8, 0x3fff lda $26, ret_from_sys_call bic $sp, $8, $8 mov $sp, $18 jsr $31, do_entArith -.end entArith +CFI_END_OSF_FRAME entArith - .align 4 - .globl entMM - .ent entMM -entMM: +CFI_START_OSF_FRAME entMM SAVE_ALL /* save $9 - $15 so the inline exception code can manipulate them. */ subq $sp, 56, $sp + .cfi_adjust_cfa_offset 56 stq $9, 0($sp) stq $10, 8($sp) stq $11, 16($sp) @@ -130,6 +207,13 @@ entMM: stq $13, 32($sp) stq $14, 40($sp) stq $15, 48($sp) + .cfi_rel_offset $9, 0 + .cfi_rel_offset $10, 8 + .cfi_rel_offset $11, 16 + .cfi_rel_offset $12, 24 + .cfi_rel_offset $13, 32 + .cfi_rel_offset $14, 40 + .cfi_rel_offset $15, 48 addq $sp, 56, $19 /* handle the fault */ lda $8, 0x3fff @@ -144,28 +228,33 @@ entMM: ldq $14, 40($sp) ldq $15, 48($sp) addq $sp, 56, $sp + .cfi_restore $9 + .cfi_restore $10 + .cfi_restore $11 + .cfi_restore $12 + .cfi_restore $13 + .cfi_restore $14 + .cfi_restore $15 + .cfi_adjust_cfa_offset -56 /* finish up the syscall as normal. */ br ret_from_sys_call -.end entMM +CFI_END_OSF_FRAME entMM - .align 4 - .globl entIF - .ent entIF -entIF: +CFI_START_OSF_FRAME entIF SAVE_ALL lda $8, 0x3fff lda $26, ret_from_sys_call bic $sp, $8, $8 mov $sp, $17 jsr $31, do_entIF -.end entIF +CFI_END_OSF_FRAME entIF - .align 4 - .globl entUna - .ent entUna -entUna: +CFI_START_OSF_FRAME entUna lda $sp, -256($sp) + .cfi_adjust_cfa_offset 256 stq $0, 0($sp) + .cfi_rel_offset $0, 0 + .cfi_remember_state ldq $0, 256($sp) /* get PS */ stq $1, 8($sp) stq $2, 16($sp) @@ -197,6 +286,32 @@ entUna: stq $28, 224($sp) mov $sp, $19 stq $gp, 232($sp) + .cfi_rel_offset $1, 1*8 + .cfi_rel_offset $2, 2*8 + .cfi_rel_offset $3, 3*8 + .cfi_rel_offset $4, 4*8 + .cfi_rel_offset $5, 5*8 + .cfi_rel_offset $6, 6*8 + .cfi_rel_offset $7, 7*8 + .cfi_rel_offset $8, 8*8 + .cfi_rel_offset $9, 9*8 + .cfi_rel_offset $10, 10*8 + .cfi_rel_offset $11, 11*8 + .cfi_rel_offset $12, 12*8 + .cfi_rel_offset $13, 13*8 + .cfi_rel_offset $14, 14*8 + .cfi_rel_offset $15, 15*8 + .cfi_rel_offset $19, 19*8 + .cfi_rel_offset $20, 20*8 + .cfi_rel_offset $21, 21*8 + .cfi_rel_offset $22, 22*8 + .cfi_rel_offset $23, 23*8 + .cfi_rel_offset $24, 24*8 + .cfi_rel_offset $25, 25*8 + .cfi_rel_offset $26, 26*8 + .cfi_rel_offset $27, 27*8 + .cfi_rel_offset $28, 28*8 + .cfi_rel_offset $29, 29*8 lda $8, 0x3fff stq $31, 248($sp) bic $sp, $8, $8 @@ -230,16 +345,45 @@ entUna: ldq $28, 224($sp) ldq $gp, 232($sp) lda $sp, 256($sp) + .cfi_restore $1 + .cfi_restore $2 + .cfi_restore $3 + .cfi_restore $4 + .cfi_restore $5 + .cfi_restore $6 + .cfi_restore $7 + .cfi_restore $8 + .cfi_restore $9 + .cfi_restore $10 + .cfi_restore $11 + .cfi_restore $12 + .cfi_restore $13 + .cfi_restore $14 + .cfi_restore $15 + .cfi_restore $19 + .cfi_restore $20 + .cfi_restore $21 + .cfi_restore $22 + .cfi_restore $23 + .cfi_restore $24 + .cfi_restore $25 + .cfi_restore $26 + .cfi_restore $27 + .cfi_restore $28 + .cfi_restore $29 + .cfi_adjust_cfa_offset -256 call_pal PAL_rti -.end entUna .align 4 - .ent entUnaUser entUnaUser: + .cfi_restore_state ldq $0, 0($sp) /* restore original $0 */ lda $sp, 256($sp) /* pop entUna's stack frame */ + .cfi_restore $0 + .cfi_adjust_cfa_offset -256 SAVE_ALL /* setup normal kernel stack */ lda $sp, -56($sp) + .cfi_adjust_cfa_offset 56 stq $9, 0($sp) stq $10, 8($sp) stq $11, 16($sp) @@ -247,6 +391,13 @@ entUnaUser: stq $13, 32($sp) stq $14, 40($sp) stq $15, 48($sp) + .cfi_rel_offset $9, 0 + .cfi_rel_offset $10, 8 + .cfi_rel_offset $11, 16 + .cfi_rel_offset $12, 24 + .cfi_rel_offset $13, 32 + .cfi_rel_offset $14, 40 + .cfi_rel_offset $15, 48 lda $8, 0x3fff addq $sp, 56, $19 bic $sp, $8, $8 @@ -259,20 +410,25 @@ entUnaUser: ldq $14, 40($sp) ldq $15, 48($sp) lda $sp, 56($sp) + .cfi_restore $9 + .cfi_restore $10 + .cfi_restore $11 + .cfi_restore $12 + .cfi_restore $13 + .cfi_restore $14 + .cfi_restore $15 + .cfi_adjust_cfa_offset -56 br ret_from_sys_call -.end entUnaUser +CFI_END_OSF_FRAME entUna - .align 4 - .globl entDbg - .ent entDbg -entDbg: +CFI_START_OSF_FRAME entDbg SAVE_ALL lda $8, 0x3fff lda $26, ret_from_sys_call bic $sp, $8, $8 mov $sp, $16 jsr $31, do_entDbg -.end entDbg +CFI_END_OSF_FRAME entDbg /* * The system call entry point is special. Most importantly, it looks @@ -287,8 +443,12 @@ entDbg: .align 4 .globl entSys - .globl ret_from_sys_call - .ent entSys + .type entSys, @function + .cfi_startproc simple + .cfi_return_column 64 + .cfi_def_cfa $sp, 48 + .cfi_rel_offset 64, 8 + .cfi_rel_offset $gp, 16 entSys: SAVE_ALL lda $8, 0x3fff @@ -302,7 +462,14 @@ entSys: stq $17, SP_OFF+32($sp) s8addq $0, $5, $5 stq $18, SP_OFF+40($sp) - blbs $3, strace + .cfi_rel_offset $16, SP_OFF+24 + .cfi_rel_offset $17, SP_OFF+32 + .cfi_rel_offset $18, SP_OFF+40 +#ifdef CONFIG_AUDITSYSCALL + lda $6, _TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT + and $3, $6, $3 +#endif + bne $3, strace beq $4, 1f ldq $27, 0($5) 1: jsr $26, ($27), alpha_ni_syscall @@ -312,23 +479,31 @@ entSys: stq $31, 72($sp) /* a3=0 => no error */ .align 4 + .globl ret_from_sys_call ret_from_sys_call: - cmovne $26, 0, $19 /* $19 = 0 => non-restartable */ + cmovne $26, 0, $18 /* $18 = 0 => non-restartable */ ldq $0, SP_OFF($sp) and $0, 8, $0 - beq $0, restore_all -ret_from_reschedule: + beq $0, ret_to_kernel +ret_to_user: /* Make sure need_resched and sigpending don't change between sampling and the rti. */ lda $16, 7 call_pal PAL_swpipl - ldl $5, TI_FLAGS($8) - and $5, _TIF_WORK_MASK, $2 - bne $5, work_pending + ldl $17, TI_FLAGS($8) + and $17, _TIF_WORK_MASK, $2 + bne $2, work_pending restore_all: + .cfi_remember_state RESTORE_ALL call_pal PAL_rti +ret_to_kernel: + .cfi_restore_state + lda $16, 7 + call_pal PAL_swpipl + br restore_all + .align 3 $syscall_error: /* @@ -338,10 +513,10 @@ $syscall_error: * frame to indicate that a negative return value wasn't an * error number.. */ - ldq $19, 0($sp) /* old syscall nr (zero if success) */ - beq $19, $ret_success + ldq $18, 0($sp) /* old syscall nr (zero if success) */ + beq $18, $ret_success - ldq $20, 72($sp) /* .. and this a3 */ + ldq $19, 72($sp) /* .. and this a3 */ subq $31, $0, $0 /* with error in v0 */ addq $31, 1, $1 /* set a3 for errno return */ stq $0, 0($sp) @@ -353,67 +528,54 @@ $ret_success: stq $0, 0($sp) stq $31, 72($sp) /* a3=0 => no error */ br ret_from_sys_call -.end entSys /* * Do all cleanup when returning from all interrupts and system calls. * * Arguments: - * $5: TI_FLAGS. * $8: current. - * $19: The old syscall number, or zero if this is not a return + * $17: TI_FLAGS. + * $18: The old syscall number, or zero if this is not a return * from a syscall that errored and is possibly restartable. - * $20: Error indication. + * $19: The old a3 value */ .align 4 - .ent work_pending + .type work_pending, @function work_pending: - and $5, _TIF_NEED_RESCHED, $2 - beq $2, $work_notifysig + and $17, _TIF_NOTIFY_RESUME | _TIF_SIGPENDING, $2 + bne $2, $work_notifysig $work_resched: - subq $sp, 16, $sp - stq $19, 0($sp) /* save syscall nr */ - stq $20, 8($sp) /* and error indication (a3) */ + /* + * We can get here only if we returned from syscall without SIGPENDING + * or got through work_notifysig already. Either case means no syscall + * restarts for us, so let $18 and $19 burn. + */ jsr $26, schedule - ldq $19, 0($sp) - ldq $20, 8($sp) - addq $sp, 16, $sp - /* Make sure need_resched and sigpending don't change between - sampling and the rti. */ - lda $16, 7 - call_pal PAL_swpipl - ldl $5, TI_FLAGS($8) - and $5, _TIF_WORK_MASK, $2 - beq $2, restore_all - and $5, _TIF_NEED_RESCHED, $2 - bne $2, $work_resched + mov 0, $18 + br ret_to_user $work_notifysig: mov $sp, $16 - br $1, do_switch_stack - mov $sp, $17 - mov $5, $18 - jsr $26, do_notify_resume - bsr $1, undo_switch_stack + DO_SWITCH_STACK + jsr $26, do_work_pending + UNDO_SWITCH_STACK br restore_all -.end work_pending /* * PTRACE syscall handler */ .align 4 - .ent strace + .type strace, @function strace: /* set up signal stack, call syscall_trace */ - bsr $1, do_switch_stack - jsr $26, syscall_trace - bsr $1, undo_switch_stack + DO_SWITCH_STACK + jsr $26, syscall_trace_enter /* returns the syscall number */ + UNDO_SWITCH_STACK - /* get the system call number and the arguments back.. */ - ldq $0, 0($sp) + /* get the arguments back.. */ ldq $16, SP_OFF+24($sp) ldq $17, SP_OFF+32($sp) ldq $18, SP_OFF+40($sp) @@ -430,6 +592,7 @@ strace: beq $1, 1f ldq $27, 0($2) 1: jsr $26, ($27), sys_gettimeofday +ret_from_straced: ldgp $gp, 0($26) /* check return.. */ @@ -438,42 +601,47 @@ strace: $strace_success: stq $0, 0($sp) /* save return value */ - bsr $1, do_switch_stack - jsr $26, syscall_trace - bsr $1, undo_switch_stack + DO_SWITCH_STACK + jsr $26, syscall_trace_leave + UNDO_SWITCH_STACK br $31, ret_from_sys_call .align 3 $strace_error: - ldq $19, 0($sp) /* old syscall nr (zero if success) */ - beq $19, $strace_success - ldq $20, 72($sp) /* .. and this a3 */ + ldq $18, 0($sp) /* old syscall nr (zero if success) */ + beq $18, $strace_success + ldq $19, 72($sp) /* .. and this a3 */ subq $31, $0, $0 /* with error in v0 */ addq $31, 1, $1 /* set a3 for errno return */ stq $0, 0($sp) stq $1, 72($sp) /* a3 for return */ - bsr $1, do_switch_stack - mov $19, $9 /* save old syscall number */ - mov $20, $10 /* save old a3 */ - jsr $26, syscall_trace - mov $9, $19 - mov $10, $20 - bsr $1, undo_switch_stack + DO_SWITCH_STACK + mov $18, $9 /* save old syscall number */ + mov $19, $10 /* save old a3 */ + jsr $26, syscall_trace_leave + mov $9, $18 + mov $10, $19 + UNDO_SWITCH_STACK mov $31, $26 /* tell "ret_from_sys_call" we can restart */ br ret_from_sys_call -.end strace +CFI_END_OSF_FRAME entSys /* * Save and restore the switch stack -- aka the balance of the user context. */ .align 4 - .ent do_switch_stack + .type do_switch_stack, @function + .cfi_startproc simple + .cfi_return_column 64 + .cfi_def_cfa $sp, 0 + .cfi_register 64, $1 do_switch_stack: lda $sp, -SWITCH_STACK_SIZE($sp) + .cfi_adjust_cfa_offset SWITCH_STACK_SIZE stq $9, 0($sp) stq $10, 8($sp) stq $11, 16($sp) @@ -517,10 +685,14 @@ do_switch_stack: stt $f0, 312($sp) # save fpcr in slot of $f31 ldt $f0, 64($sp) # dont let "do_switch_stack" change fp state. ret $31, ($1), 1 -.end do_switch_stack + .cfi_endproc + .size do_switch_stack, .-do_switch_stack .align 4 - .ent undo_switch_stack + .type undo_switch_stack, @function + .cfi_startproc simple + .cfi_def_cfa $sp, 0 + .cfi_register 64, $1 undo_switch_stack: ldq $9, 0($sp) ldq $10, 8($sp) @@ -565,7 +737,8 @@ undo_switch_stack: ldt $f30, 304($sp) lda $sp, SWITCH_STACK_SIZE($sp) ret $31, ($1), 1 -.end undo_switch_stack + .cfi_endproc + .size undo_switch_stack, .-undo_switch_stack /* * The meat of the context switch code. @@ -573,17 +746,18 @@ undo_switch_stack: .align 4 .globl alpha_switch_to - .ent alpha_switch_to + .type alpha_switch_to, @function + .cfi_startproc alpha_switch_to: - .prologue 0 - bsr $1, do_switch_stack + DO_SWITCH_STACK call_pal PAL_swpctx lda $8, 0x3fff - bsr $1, undo_switch_stack + UNDO_SWITCH_STACK bic $sp, $8, $8 mov $17, $0 ret -.end alpha_switch_to + .cfi_endproc + .size alpha_switch_to, .-alpha_switch_to /* * New processes begin life here. @@ -599,169 +773,57 @@ ret_from_fork: .end ret_from_fork /* - * kernel_thread(fn, arg, clone_flags) + * ... and new kernel threads - here */ .align 4 - .globl kernel_thread - .ent kernel_thread -kernel_thread: - /* We can be called from a module. */ - ldgp $gp, 0($27) - .prologue 1 - subq $sp, SP_OFF+6*8, $sp - br $1, 2f /* load start address */ - - /* We've now "returned" from a fake system call. */ - unop - blt $0, 1f /* error? */ - ldi $1, 0x3fff - beq $20, 1f /* parent or child? */ - - bic $sp, $1, $8 /* in child. */ - jsr $26, ($27) - ldgp $gp, 0($26) - mov $0, $16 - mov $31, $26 - jmp $31, sys_exit - -1: ret /* in parent. */ - - .align 4 -2: /* Fake a system call stack frame, as we can't do system calls - from kernel space. Note that we store FN and ARG as they - need to be set up in the child for the call. Also store $8 - and $26 for use in the parent. */ - stq $31, SP_OFF($sp) /* ps */ - stq $1, SP_OFF+8($sp) /* pc */ - stq $gp, SP_OFF+16($sp) /* gp */ - stq $16, 136($sp) /* $27; FN for child */ - stq $17, SP_OFF+24($sp) /* $16; ARG for child */ - stq $8, 64($sp) /* $8 */ - stq $26, 128($sp) /* $26 */ - /* Avoid the HAE being gratuitously wrong, to avoid restoring it. */ - ldq $2, alpha_mv+HAE_CACHE - stq $2, 152($sp) /* HAE */ - - /* Shuffle FLAGS to the front; add CLONE_VM. */ - ldi $1, CLONE_VM|CLONE_UNTRACED - or $18, $1, $16 - bsr $26, sys_clone - - /* We don't actually care for a3 success widgetry in the kernel. - Not for positive errno values. */ - stq $0, 0($sp) /* $0 */ - br restore_all -.end kernel_thread - -/* - * kernel_execve(path, argv, envp) - */ - .align 4 - .globl kernel_execve - .ent kernel_execve -kernel_execve: - /* We can be called from a module. */ - ldgp $gp, 0($27) - lda $sp, -(32+SIZEOF_PT_REGS+8)($sp) - .frame $sp, 32+SIZEOF_PT_REGS+8, $26, 0 - stq $26, 0($sp) - stq $16, 8($sp) - stq $17, 16($sp) - stq $18, 24($sp) - .prologue 1 - - lda $16, 32($sp) - lda $17, 0 - lda $18, SIZEOF_PT_REGS - bsr $26, memset !samegp - - /* Avoid the HAE being gratuitously wrong, which would cause us - to do the whole turn off interrupts thing and restore it. */ - ldq $2, alpha_mv+HAE_CACHE - stq $2, 152+32($sp) - - ldq $16, 8($sp) - ldq $17, 16($sp) - ldq $18, 24($sp) - lda $19, 32($sp) - bsr $26, do_execve !samegp - - ldq $26, 0($sp) - bne $0, 1f /* error! */ - - /* Move the temporary pt_regs struct from its current location - to the top of the kernel stack frame. See copy_thread for - details for a normal process. */ - lda $16, 0x4000 - SIZEOF_PT_REGS($8) - lda $17, 32($sp) - lda $18, SIZEOF_PT_REGS - bsr $26, memmove !samegp - - /* Take that over as our new stack frame and visit userland! */ - lda $sp, 0x4000 - SIZEOF_PT_REGS($8) - br $31, ret_from_sys_call - -1: lda $sp, 32+SIZEOF_PT_REGS+8($sp) - ret -.end kernel_execve + .globl ret_from_kernel_thread + .ent ret_from_kernel_thread +ret_from_kernel_thread: + mov $17, $16 + jsr $26, schedule_tail + mov $9, $27 + mov $10, $16 + jsr $26, ($9) + mov $31, $19 /* to disable syscall restarts */ + br $31, ret_to_user +.end ret_from_kernel_thread /* * Special system calls. Most of these are special in that they either * have to play switch_stack games or in some way use the pt_regs struct. */ - .align 4 - .globl sys_fork - .ent sys_fork -sys_fork: - .prologue 0 - mov $sp, $21 - bsr $1, do_switch_stack - bis $31, SIGCHLD, $16 - mov $31, $17 - mov $31, $18 - mov $31, $19 - mov $31, $20 - jsr $26, alpha_clone - bsr $1, undo_switch_stack - ret -.end sys_fork +.macro fork_like name .align 4 - .globl sys_clone - .ent sys_clone -sys_clone: + .globl alpha_\name + .ent alpha_\name +alpha_\name: .prologue 0 - mov $sp, $21 bsr $1, do_switch_stack - /* $16, $17, $18, $19, $20 come from the user. */ - jsr $26, alpha_clone - bsr $1, undo_switch_stack + jsr $26, sys_\name + ldq $26, 56($sp) + lda $sp, SWITCH_STACK_SIZE($sp) ret -.end sys_clone +.end alpha_\name +.endm - .align 4 - .globl sys_vfork - .ent sys_vfork -sys_vfork: - .prologue 0 - mov $sp, $16 - bsr $1, do_switch_stack - jsr $26, alpha_vfork - bsr $1, undo_switch_stack - ret -.end sys_vfork +fork_like fork +fork_like vfork +fork_like clone .align 4 .globl sys_sigreturn .ent sys_sigreturn sys_sigreturn: .prologue 0 - mov $sp, $17 - lda $18, -SWITCH_STACK_SIZE($sp) + lda $9, ret_from_straced + cmpult $26, $9, $9 lda $sp, -SWITCH_STACK_SIZE($sp) jsr $26, do_sigreturn - br $1, undo_switch_stack + bne $9, 1f + jsr $26, syscall_trace_leave +1: br $1, undo_switch_stack br ret_from_sys_call .end sys_sigreturn @@ -770,171 +832,17 @@ sys_sigreturn: .ent sys_rt_sigreturn sys_rt_sigreturn: .prologue 0 - mov $sp, $17 - lda $18, -SWITCH_STACK_SIZE($sp) + lda $9, ret_from_straced + cmpult $26, $9, $9 lda $sp, -SWITCH_STACK_SIZE($sp) jsr $26, do_rt_sigreturn - br $1, undo_switch_stack + bne $9, 1f + jsr $26, syscall_trace_leave +1: br $1, undo_switch_stack br ret_from_sys_call .end sys_rt_sigreturn .align 4 - .globl sys_sigsuspend - .ent sys_sigsuspend -sys_sigsuspend: - .prologue 0 - mov $sp, $17 - br $1, do_switch_stack - mov $sp, $18 - subq $sp, 16, $sp - stq $26, 0($sp) - jsr $26, do_sigsuspend - ldq $26, 0($sp) - lda $sp, SWITCH_STACK_SIZE+16($sp) - ret -.end sys_sigsuspend - - .align 4 - .globl sys_rt_sigsuspend - .ent sys_rt_sigsuspend -sys_rt_sigsuspend: - .prologue 0 - mov $sp, $18 - br $1, do_switch_stack - mov $sp, $19 - subq $sp, 16, $sp - stq $26, 0($sp) - jsr $26, do_rt_sigsuspend - ldq $26, 0($sp) - lda $sp, SWITCH_STACK_SIZE+16($sp) - ret -.end sys_rt_sigsuspend - - .align 4 - .globl sys_sethae - .ent sys_sethae -sys_sethae: - .prologue 0 - stq $16, 152($sp) - ret -.end sys_sethae - - .align 4 - .globl osf_getpriority - .ent osf_getpriority -osf_getpriority: - lda $sp, -16($sp) - stq $26, 0($sp) - .prologue 0 - - jsr $26, sys_getpriority - - ldq $26, 0($sp) - blt $0, 1f - - /* Return value is the unbiased priority, i.e. 20 - prio. - This does result in negative return values, so signal - no error by writing into the R0 slot. */ - lda $1, 20 - stq $31, 16($sp) - subl $1, $0, $0 - unop - -1: lda $sp, 16($sp) - ret -.end osf_getpriority - - .align 4 - .globl sys_getxuid - .ent sys_getxuid -sys_getxuid: - .prologue 0 - ldq $2, TI_TASK($8) - ldl $0, TASK_UID($2) - ldl $1, TASK_EUID($2) - stq $1, 80($sp) - ret -.end sys_getxuid - - .align 4 - .globl sys_getxgid - .ent sys_getxgid -sys_getxgid: - .prologue 0 - ldq $2, TI_TASK($8) - ldl $0, TASK_GID($2) - ldl $1, TASK_EGID($2) - stq $1, 80($sp) - ret -.end sys_getxgid - - .align 4 - .globl sys_getxpid - .ent sys_getxpid -sys_getxpid: - .prologue 0 - ldq $2, TI_TASK($8) - - /* See linux/kernel/timer.c sys_getppid for discussion - about this loop. */ - ldq $3, TASK_GROUP_LEADER($2) - ldq $4, TASK_REAL_PARENT($3) - ldl $0, TASK_TGID($2) -1: ldl $1, TASK_TGID($4) -#ifdef CONFIG_SMP - mov $4, $5 - mb - ldq $3, TASK_GROUP_LEADER($2) - ldq $4, TASK_REAL_PARENT($3) - cmpeq $4, $5, $5 - beq $5, 1b -#endif - stq $1, 80($sp) - ret -.end sys_getxpid - - .align 4 - .globl sys_pipe - .ent sys_pipe -sys_pipe: - lda $sp, -16($sp) - stq $26, 0($sp) - .prologue 0 - - lda $16, 8($sp) - jsr $26, do_pipe - - ldq $26, 0($sp) - bne $0, 1f - - /* The return values are in $0 and $20. */ - ldl $1, 12($sp) - ldl $0, 8($sp) - - stq $1, 80+16($sp) -1: lda $sp, 16($sp) - ret -.end sys_pipe - - .align 4 - .globl sys_execve - .ent sys_execve -sys_execve: - .prologue 0 - mov $sp, $19 - jmp $31, do_sys_execve -.end sys_execve - - .align 4 - .globl osf_sigprocmask - .ent osf_sigprocmask -osf_sigprocmask: - .prologue 0 - mov $sp, $18 - jmp $31, do_osf_sigprocmask -.end osf_sigprocmask - - .align 4 .globl alpha_ni_syscall .ent alpha_ni_syscall alpha_ni_syscall: diff --git a/arch/alpha/kernel/err_ev6.c b/arch/alpha/kernel/err_ev6.c index 11aee012a8a..253cf1a8748 100644 --- a/arch/alpha/kernel/err_ev6.c +++ b/arch/alpha/kernel/err_ev6.c @@ -90,11 +90,13 @@ static int ev6_parse_cbox(u64 c_addr, u64 c1_syn, u64 c2_syn, u64 c_stat, u64 c_sts, int print) { - char *sourcename[] = { "UNKNOWN", "UNKNOWN", "UNKNOWN", - "MEMORY", "BCACHE", "DCACHE", - "BCACHE PROBE", "BCACHE PROBE" }; - char *streamname[] = { "D", "I" }; - char *bitsname[] = { "SINGLE", "DOUBLE" }; + static const char * const sourcename[] = { + "UNKNOWN", "UNKNOWN", "UNKNOWN", + "MEMORY", "BCACHE", "DCACHE", + "BCACHE PROBE", "BCACHE PROBE" + }; + static const char * const streamname[] = { "D", "I" }; + static const char * const bitsname[] = { "SINGLE", "DOUBLE" }; int status = MCHK_DISPOSITION_REPORT; int source = -1, stream = -1, bits = -1; @@ -157,8 +159,8 @@ ev6_parse_cbox(u64 c_addr, u64 c1_syn, u64 c2_syn, err_print_prefix, streamname[stream], bitsname[bits], sourcename[source]); - printk("%s Address: 0x%016lx\n" - " Syndrome[upper.lower]: %02lx.%02lx\n", + printk("%s Address: 0x%016llx\n" + " Syndrome[upper.lower]: %02llx.%02llx\n", err_print_prefix, c_addr, c2_syn, c1_syn); @@ -229,7 +231,7 @@ ev6_process_logout_frame(struct el_common *mchk_header, int print) } void -ev6_machine_check(u64 vector, u64 la_ptr) +ev6_machine_check(unsigned long vector, unsigned long la_ptr) { struct el_common *mchk_header = (struct el_common *)la_ptr; diff --git a/arch/alpha/kernel/err_ev7.c b/arch/alpha/kernel/err_ev7.c index 68cd493f54c..d738a67112d 100644 --- a/arch/alpha/kernel/err_ev7.c +++ b/arch/alpha/kernel/err_ev7.c @@ -117,7 +117,7 @@ ev7_collect_logout_frame_subpackets(struct el_subpacket *el_ptr, } void -ev7_machine_check(u64 vector, u64 la_ptr) +ev7_machine_check(unsigned long vector, unsigned long la_ptr) { struct el_subpacket *el_ptr = (struct el_subpacket *)la_ptr; char *saved_err_prefix = err_print_prefix; @@ -246,13 +246,13 @@ ev7_process_pal_subpacket(struct el_subpacket *header) switch(header->type) { case EL_TYPE__PAL__LOGOUT_FRAME: - printk("%s*** MCHK occurred on LPID %ld (RBOX %lx)\n", + printk("%s*** MCHK occurred on LPID %lld (RBOX %llx)\n", err_print_prefix, packet->by_type.logout.whami, packet->by_type.logout.rbox_whami); el_print_timestamp(&packet->by_type.logout.timestamp); - printk("%s EXC_ADDR: %016lx\n" - " HALT_CODE: %lx\n", + printk("%s EXC_ADDR: %016llx\n" + " HALT_CODE: %llx\n", err_print_prefix, packet->by_type.logout.exc_addr, packet->by_type.logout.halt_code); diff --git a/arch/alpha/kernel/err_impl.h b/arch/alpha/kernel/err_impl.h index 3c12258158e..ae529c41603 100644 --- a/arch/alpha/kernel/err_impl.h +++ b/arch/alpha/kernel/err_impl.h @@ -7,6 +7,8 @@ * implementations. */ +#include <asm/mce.h> + union el_timestamp; struct el_subpacket; struct ev7_lf_subpackets; @@ -60,26 +62,26 @@ extern struct ev7_lf_subpackets * ev7_collect_logout_frame_subpackets(struct el_subpacket *, struct ev7_lf_subpackets *); extern void ev7_register_error_handlers(void); -extern void ev7_machine_check(u64, u64); +extern void ev7_machine_check(unsigned long, unsigned long); /* * err_ev6.c */ extern void ev6_register_error_handlers(void); extern int ev6_process_logout_frame(struct el_common *, int); -extern void ev6_machine_check(u64, u64); +extern void ev6_machine_check(unsigned long, unsigned long); /* * err_marvel.c */ -extern void marvel_machine_check(u64, u64); +extern void marvel_machine_check(unsigned long, unsigned long); extern void marvel_register_error_handlers(void); /* * err_titan.c */ extern int titan_process_logout_frame(struct el_common *, int); -extern void titan_machine_check(u64, u64); +extern void titan_machine_check(unsigned long, unsigned long); extern void titan_register_error_handlers(void); extern int privateer_process_logout_frame(struct el_common *, int); -extern void privateer_machine_check(u64, u64); +extern void privateer_machine_check(unsigned long, unsigned long); diff --git a/arch/alpha/kernel/err_marvel.c b/arch/alpha/kernel/err_marvel.c index 413bf37eb09..ae54ad91e18 100644 --- a/arch/alpha/kernel/err_marvel.c +++ b/arch/alpha/kernel/err_marvel.c @@ -109,7 +109,7 @@ marvel_print_err_cyc(u64 err_cyc) #define IO7__ERR_CYC__CYCLE__M (0x7) printk("%s Packet In Error: %s\n" - "%s Error in %s, cycle %ld%s%s\n", + "%s Error in %s, cycle %lld%s%s\n", err_print_prefix, packet_desc[EXTRACT(err_cyc, IO7__ERR_CYC__PACKET)], err_print_prefix, @@ -129,7 +129,7 @@ marvel_print_po7_crrct_sym(u64 crrct_sym) printk("%s Correctable Error Symptoms:\n" - "%s Syndrome: 0x%lx\n", + "%s Syndrome: 0x%llx\n", err_print_prefix, err_print_prefix, EXTRACT(crrct_sym, IO7__PO7_CRRCT_SYM__SYN)); marvel_print_err_cyc(EXTRACT(crrct_sym, IO7__PO7_CRRCT_SYM__ERR_CYC)); @@ -186,7 +186,7 @@ marvel_print_po7_uncrr_sym(u64 uncrr_sym, u64 valid_mask) uncrr_sym &= valid_mask; if (EXTRACT(valid_mask, IO7__PO7_UNCRR_SYM__SYN)) - printk("%s Syndrome: 0x%lx\n", + printk("%s Syndrome: 0x%llx\n", err_print_prefix, EXTRACT(uncrr_sym, IO7__PO7_UNCRR_SYM__SYN)); @@ -307,13 +307,13 @@ marvel_print_po7_ugbge_sym(u64 ugbge_sym) sprintf(opcode_str, "BlkIO"); break; default: - sprintf(opcode_str, "0x%lx\n", + sprintf(opcode_str, "0x%llx\n", EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_OPCODE)); break; } printk("%s Up Hose Garbage Symptom:\n" - "%s Source Port: %ld - Dest PID: %ld - OpCode: %s\n", + "%s Source Port: %lld - Dest PID: %lld - OpCode: %s\n", err_print_prefix, err_print_prefix, EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_SRC_PORT), @@ -321,7 +321,7 @@ marvel_print_po7_ugbge_sym(u64 ugbge_sym) opcode_str); if (0xC5 != EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_OPCODE)) - printk("%s Packet Offset 0x%08lx\n", + printk("%s Packet Offset 0x%08llx\n", err_print_prefix, EXTRACT(ugbge_sym, IO7__PO7_UGBGE_SYM__UPH_PKT_OFF)); } @@ -480,8 +480,8 @@ marvel_print_po7_err_sum(struct ev7_pal_io_subpacket *io) printk("%s Lost Error\n", err_print_prefix); printk("%s Failing Packet:\n" - "%s Cycle 1: %016lx\n" - "%s Cycle 2: %016lx\n", + "%s Cycle 1: %016llx\n" + "%s Cycle 2: %016llx\n", err_print_prefix, err_print_prefix, io->po7_err_pkt0, err_print_prefix, io->po7_err_pkt1); @@ -515,9 +515,9 @@ marvel_print_pox_tlb_err(u64 tlb_err) if (!(tlb_err & IO7__POX_TLBERR__ERR_VALID)) return; - printk("%s TLB Error on index 0x%lx:\n" + printk("%s TLB Error on index 0x%llx:\n" "%s - %s\n" - "%s - Addr: 0x%016lx\n", + "%s - Addr: 0x%016llx\n", err_print_prefix, EXTRACT(tlb_err, IO7__POX_TLBERR__ERR_TLB_PTR), err_print_prefix, @@ -552,7 +552,7 @@ marvel_print_pox_spl_cmplt(u64 spl_cmplt) #define IO7__POX_SPLCMPLT__REM_BYTE_COUNT__M (0xfff) printk("%s Split Completion Error:\n" - "%s Source (Bus:Dev:Func): %ld:%ld:%ld\n", + "%s Source (Bus:Dev:Func): %lld:%lld:%lld\n", err_print_prefix, err_print_prefix, EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__SOURCE_BUS), @@ -579,7 +579,7 @@ marvel_print_pox_spl_cmplt(u64 spl_cmplt) sprintf(message, "Uncorrectable Split Write Data Error"); break; default: - sprintf(message, "%08lx\n", + sprintf(message, "%08llx\n", EXTRACT(spl_cmplt, IO7__POX_SPLCMPLT__MESSAGE)); break; } @@ -589,22 +589,23 @@ marvel_print_pox_spl_cmplt(u64 spl_cmplt) static void marvel_print_pox_trans_sum(u64 trans_sum) { - char *pcix_cmd[] = { "Interrupt Acknowledge", - "Special Cycle", - "I/O Read", - "I/O Write", - "Reserved", - "Reserved / Device ID Message", - "Memory Read", - "Memory Write", - "Reserved / Alias to Memory Read Block", - "Reserved / Alias to Memory Write Block", - "Configuration Read", - "Configuration Write", - "Memory Read Multiple / Split Completion", - "Dual Address Cycle", - "Memory Read Line / Memory Read Block", - "Memory Write and Invalidate / Memory Write Block" + static const char * const pcix_cmd[] = { + "Interrupt Acknowledge", + "Special Cycle", + "I/O Read", + "I/O Write", + "Reserved", + "Reserved / Device ID Message", + "Memory Read", + "Memory Write", + "Reserved / Alias to Memory Read Block", + "Reserved / Alias to Memory Write Block", + "Configuration Read", + "Configuration Write", + "Memory Read Multiple / Split Completion", + "Dual Address Cycle", + "Memory Read Line / Memory Read Block", + "Memory Write and Invalidate / Memory Write Block" }; #define IO7__POX_TRANSUM__PCI_ADDR__S (0) @@ -620,9 +621,9 @@ marvel_print_pox_trans_sum(u64 trans_sum) return; printk("%s Transaction Summary:\n" - "%s Command: 0x%lx - %s\n" - "%s Address: 0x%016lx%s\n" - "%s PCI-X Master Slot: 0x%lx\n", + "%s Command: 0x%llx - %s\n" + "%s Address: 0x%016llx%s\n" + "%s PCI-X Master Slot: 0x%llx\n", err_print_prefix, err_print_prefix, EXTRACT(trans_sum, IO7__POX_TRANSUM__PCIX_CMD), @@ -964,12 +965,12 @@ marvel_process_io_error(struct ev7_lf_subpackets *lf_subpackets, int print) #if 0 printk("%s PORT 7 ERROR:\n" - "%s PO7_ERROR_SUM: %016lx\n" - "%s PO7_UNCRR_SYM: %016lx\n" - "%s PO7_CRRCT_SYM: %016lx\n" - "%s PO7_UGBGE_SYM: %016lx\n" - "%s PO7_ERR_PKT0: %016lx\n" - "%s PO7_ERR_PKT1: %016lx\n", + "%s PO7_ERROR_SUM: %016llx\n" + "%s PO7_UNCRR_SYM: %016llx\n" + "%s PO7_CRRCT_SYM: %016llx\n" + "%s PO7_UGBGE_SYM: %016llx\n" + "%s PO7_ERR_PKT0: %016llx\n" + "%s PO7_ERR_PKT1: %016llx\n", err_print_prefix, err_print_prefix, io->po7_error_sum, err_print_prefix, io->po7_uncrr_sym, @@ -987,12 +988,12 @@ marvel_process_io_error(struct ev7_lf_subpackets *lf_subpackets, int print) if (!MARVEL_IO_ERR_VALID(io->ports[i].pox_err_sum)) continue; - printk("%s PID %u PORT %d POx_ERR_SUM: %016lx\n", + printk("%s PID %u PORT %d POx_ERR_SUM: %016llx\n", err_print_prefix, lf_subpackets->io_pid, i, io->ports[i].pox_err_sum); marvel_print_pox_err(io->ports[i].pox_err_sum, &io->ports[i]); - printk("%s [ POx_FIRST_ERR: %016lx ]\n", + printk("%s [ POx_FIRST_ERR: %016llx ]\n", err_print_prefix, io->ports[i].pox_first_err); marvel_print_pox_err(io->ports[i].pox_first_err, &io->ports[i]); @@ -1026,7 +1027,7 @@ marvel_process_logout_frame(struct ev7_lf_subpackets *lf_subpackets, int print) * normal operation, dismiss them. * * Dismiss if: - * C_STAT = 0x14 (Error Reponse) + * C_STAT = 0x14 (Error Response) * C_STS<3> = 0 (C_ADDR valid) * C_ADDR<42> = 1 (I/O) * C_ADDR<31:22> = 111110xxb (PCI Config space) @@ -1042,7 +1043,7 @@ marvel_process_logout_frame(struct ev7_lf_subpackets *lf_subpackets, int print) } void -marvel_machine_check(u64 vector, u64 la_ptr) +marvel_machine_check(unsigned long vector, unsigned long la_ptr) { struct el_subpacket *el_ptr = (struct el_subpacket *)la_ptr; int (*process_frame)(struct ev7_lf_subpackets *, int) = NULL; diff --git a/arch/alpha/kernel/err_titan.c b/arch/alpha/kernel/err_titan.c index 257449ed15e..14b26c466c8 100644 --- a/arch/alpha/kernel/err_titan.c +++ b/arch/alpha/kernel/err_titan.c @@ -75,8 +75,12 @@ titan_parse_p_serror(int which, u64 serror, int print) int status = MCHK_DISPOSITION_REPORT; #ifdef CONFIG_VERBOSE_MCHECK - char *serror_src[] = {"GPCI", "APCI", "AGP HP", "AGP LP"}; - char *serror_cmd[] = {"DMA Read", "DMA RMW", "SGTE Read", "Reserved"}; + static const char * const serror_src[] = { + "GPCI", "APCI", "AGP HP", "AGP LP" + }; + static const char * const serror_cmd[] = { + "DMA Read", "DMA RMW", "SGTE Read", "Reserved" + }; #endif /* CONFIG_VERBOSE_MCHECK */ #define TITAN__PCHIP_SERROR__LOST_UECC (1UL << 0) @@ -107,12 +111,12 @@ titan_parse_p_serror(int which, u64 serror, int print) if (!print) return status; - printk("%s PChip %d SERROR: %016lx\n", + printk("%s PChip %d SERROR: %016llx\n", err_print_prefix, which, serror); if (serror & TITAN__PCHIP_SERROR__ECCMASK) { printk("%s %sorrectable ECC Error:\n" " Source: %-6s Command: %-8s Syndrome: 0x%08x\n" - " Address: 0x%lx\n", + " Address: 0x%llx\n", err_print_prefix, (serror & TITAN__PCHIP_SERROR__UECC) ? "Unc" : "C", serror_src[EXTRACT(serror, TITAN__PCHIP_SERROR__SRC)], @@ -140,14 +144,15 @@ titan_parse_p_perror(int which, int port, u64 perror, int print) int status = MCHK_DISPOSITION_REPORT; #ifdef CONFIG_VERBOSE_MCHECK - char *perror_cmd[] = { "Interrupt Acknowledge", "Special Cycle", - "I/O Read", "I/O Write", - "Reserved", "Reserved", - "Memory Read", "Memory Write", - "Reserved", "Reserved", - "Configuration Read", "Configuration Write", - "Memory Read Multiple", "Dual Address Cycle", - "Memory Read Line","Memory Write and Invalidate" + static const char * const perror_cmd[] = { + "Interrupt Acknowledge", "Special Cycle", + "I/O Read", "I/O Write", + "Reserved", "Reserved", + "Memory Read", "Memory Write", + "Reserved", "Reserved", + "Configuration Read", "Configuration Write", + "Memory Read Multiple", "Dual Address Cycle", + "Memory Read Line", "Memory Write and Invalidate" }; #endif /* CONFIG_VERBOSE_MCHECK */ @@ -223,7 +228,7 @@ titan_parse_p_perror(int which, int port, u64 perror, int print) if (!print) return status; - printk("%s PChip %d %cPERROR: %016lx\n", + printk("%s PChip %d %cPERROR: %016llx\n", err_print_prefix, which, port ? 'A' : 'G', perror); if (perror & TITAN__PCHIP_PERROR__IPTPW) @@ -273,11 +278,11 @@ titan_parse_p_agperror(int which, u64 agperror, int print) int cmd, len; unsigned long addr; - char *agperror_cmd[] = { "Read (low-priority)", "Read (high-priority)", - "Write (low-priority)", - "Write (high-priority)", - "Reserved", "Reserved", - "Flush", "Fence" + static const char * const agperror_cmd[] = { + "Read (low-priority)", "Read (high-priority)", + "Write (low-priority)", "Write (high-priority)", + "Reserved", "Reserved", + "Flush", "Fence" }; #endif /* CONFIG_VERBOSE_MCHECK */ @@ -316,7 +321,7 @@ titan_parse_p_agperror(int which, u64 agperror, int print) addr = EXTRACT(agperror, TITAN__PCHIP_AGPERROR__ADDR) << 3; len = EXTRACT(agperror, TITAN__PCHIP_AGPERROR__LEN); - printk("%s PChip %d AGPERROR: %016lx\n", err_print_prefix, + printk("%s PChip %d AGPERROR: %016llx\n", err_print_prefix, which, agperror); if (agperror & TITAN__PCHIP_AGPERROR__NOWINDOW) printk("%s No Window\n", err_print_prefix); @@ -380,7 +385,7 @@ titan_process_logout_frame(struct el_common *mchk_header, int print) } void -titan_machine_check(u64 vector, u64 la_ptr) +titan_machine_check(unsigned long vector, unsigned long la_ptr) { struct el_common *mchk_header = (struct el_common *)la_ptr; struct el_TITAN_sysdata_mcheck *tmchk = @@ -528,8 +533,6 @@ static struct el_subpacket_annotation el_titan_annotations[] = { static struct el_subpacket * el_process_regatta_subpacket(struct el_subpacket *header) { - int status; - if (header->class != EL_CLASS__REGATTA_FAMILY) { printk("%s ** Unexpected header CLASS %d TYPE %d, aborting\n", err_print_prefix, @@ -546,7 +549,7 @@ el_process_regatta_subpacket(struct el_subpacket *header) printk("%s ** Occurred on CPU %d:\n", err_print_prefix, (int)header->by_type.regatta_frame.cpuid); - status = privateer_process_logout_frame((struct el_common *) + privateer_process_logout_frame((struct el_common *) header->by_type.regatta_frame.data_start, 1); break; default: @@ -597,16 +600,16 @@ privateer_process_680_frame(struct el_common *mchk_header, int print) return status; /* TODO - decode instead of just dumping... */ - printk("%s Summary Flags: %016lx\n" - " CChip DIRx: %016lx\n" - " System Management IR: %016lx\n" - " CPU IR: %016lx\n" - " Power Supply IR: %016lx\n" - " LM78 Fault Status: %016lx\n" - " System Doors: %016lx\n" - " Temperature Warning: %016lx\n" - " Fan Control: %016lx\n" - " Fatal Power Down Code: %016lx\n", + printk("%s Summary Flags: %016llx\n" + " CChip DIRx: %016llx\n" + " System Management IR: %016llx\n" + " CPU IR: %016llx\n" + " Power Supply IR: %016llx\n" + " LM78 Fault Status: %016llx\n" + " System Doors: %016llx\n" + " Temperature Warning: %016llx\n" + " Fan Control: %016llx\n" + " Fatal Power Down Code: %016llx\n", err_print_prefix, emchk->summary, emchk->c_dirx, @@ -702,7 +705,7 @@ privateer_process_logout_frame(struct el_common *mchk_header, int print) } void -privateer_machine_check(u64 vector, u64 la_ptr) +privateer_machine_check(unsigned long vector, unsigned long la_ptr) { struct el_common *mchk_header = (struct el_common *)la_ptr; struct el_TITAN_sysdata_mcheck *tmchk = diff --git a/arch/alpha/kernel/head.S b/arch/alpha/kernel/head.S index 7ac1f1372c3..c352499ab9f 100644 --- a/arch/alpha/kernel/head.S +++ b/arch/alpha/kernel/head.S @@ -7,14 +7,13 @@ * the kernel global pointer and jump to the kernel entry-point. */ -#include <asm/system.h> +#include <linux/init.h> #include <asm/asm-offsets.h> +#include <asm/pal.h> +#include <asm/setup.h> -.section .text.head, "ax" -.globl swapper_pg_dir +__HEAD .globl _stext -swapper_pg_dir=SWAPPER_PGD - .set noreorder .globl __start .ent __start diff --git a/arch/alpha/kernel/init_task.c b/arch/alpha/kernel/init_task.c deleted file mode 100644 index 835d09a7b33..00000000000 --- a/arch/alpha/kernel/init_task.c +++ /dev/null @@ -1,23 +0,0 @@ -#include <linux/mm.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/init.h> -#include <linux/init_task.h> -#include <linux/fs.h> -#include <linux/mqueue.h> -#include <asm/uaccess.h> - - -static struct fs_struct init_fs = INIT_FS; -static struct files_struct init_files = INIT_FILES; -static struct signal_struct init_signals = INIT_SIGNALS(init_signals); -static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); -struct mm_struct init_mm = INIT_MM(init_mm); -struct task_struct init_task = INIT_TASK(init_task); - -EXPORT_SYMBOL(init_mm); -EXPORT_SYMBOL(init_task); - -union thread_union init_thread_union - __attribute__((section(".data.init_thread"))) - = { INIT_THREAD_INFO(init_task) }; diff --git a/arch/alpha/kernel/irq.c b/arch/alpha/kernel/irq.c index facf82a5499..7b2be251c30 100644 --- a/arch/alpha/kernel/irq.c +++ b/arch/alpha/kernel/irq.c @@ -18,7 +18,6 @@ #include <linux/sched.h> #include <linux/ptrace.h> #include <linux/interrupt.h> -#include <linux/slab.h> #include <linux/random.h> #include <linux/init.h> #include <linux/irq.h> @@ -27,11 +26,11 @@ #include <linux/profile.h> #include <linux/bitops.h> -#include <asm/system.h> #include <asm/io.h> #include <asm/uaccess.h> volatile unsigned long irq_err_count; +DEFINE_PER_CPU(unsigned long, irq_pmi_count); void ack_bad_irq(unsigned int irq) { @@ -42,79 +41,46 @@ void ack_bad_irq(unsigned int irq) #ifdef CONFIG_SMP static char irq_user_affinity[NR_IRQS]; -int -select_smp_affinity(unsigned int irq) +int irq_select_affinity(unsigned int irq) { + struct irq_data *data = irq_get_irq_data(irq); + struct irq_chip *chip; static int last_cpu; int cpu = last_cpu + 1; - if (!irq_desc[irq].chip->set_affinity || irq_user_affinity[irq]) + if (!data) return 1; + chip = irq_data_get_irq_chip(data); - while (!cpu_possible(cpu)) + if (!chip->irq_set_affinity || irq_user_affinity[irq]) + return 1; + + while (!cpu_possible(cpu) || + !cpumask_test_cpu(cpu, irq_default_affinity)) cpu = (cpu < (NR_CPUS-1) ? cpu + 1 : 0); last_cpu = cpu; - irq_desc[irq].affinity = cpumask_of_cpu(cpu); - irq_desc[irq].chip->set_affinity(irq, cpumask_of_cpu(cpu)); + cpumask_copy(data->affinity, cpumask_of(cpu)); + chip->irq_set_affinity(data, cpumask_of(cpu), false); return 0; } #endif /* CONFIG_SMP */ -int -show_interrupts(struct seq_file *p, void *v) +int arch_show_interrupts(struct seq_file *p, int prec) { -#ifdef CONFIG_SMP int j; -#endif - int irq = *(loff_t *) v; - struct irqaction * action; - unsigned long flags; #ifdef CONFIG_SMP - if (irq == 0) { - seq_puts(p, " "); - for_each_online_cpu(j) - seq_printf(p, "CPU%d ", j); - seq_putc(p, '\n'); - } + seq_puts(p, "IPI: "); + for_each_online_cpu(j) + seq_printf(p, "%10lu ", cpu_data[j].ipi_count); + seq_putc(p, '\n'); #endif - - if (irq < ACTUAL_NR_IRQS) { - spin_lock_irqsave(&irq_desc[irq].lock, flags); - action = irq_desc[irq].action; - if (!action) - goto unlock; - seq_printf(p, "%3d: ", irq); -#ifndef CONFIG_SMP - seq_printf(p, "%10u ", kstat_irqs(irq)); -#else - for_each_online_cpu(j) - seq_printf(p, "%10u ", kstat_cpu(j).irqs[irq]); -#endif - seq_printf(p, " %14s", irq_desc[irq].chip->typename); - seq_printf(p, " %c%s", - (action->flags & IRQF_DISABLED)?'+':' ', - action->name); - - for (action=action->next; action; action = action->next) { - seq_printf(p, ", %c%s", - (action->flags & IRQF_DISABLED)?'+':' ', - action->name); - } - - seq_putc(p, '\n'); -unlock: - spin_unlock_irqrestore(&irq_desc[irq].lock, flags); - } else if (irq == ACTUAL_NR_IRQS) { -#ifdef CONFIG_SMP - seq_puts(p, "IPI: "); - for_each_online_cpu(j) - seq_printf(p, "%10lu ", cpu_data[j].ipi_count); - seq_putc(p, '\n'); -#endif - seq_printf(p, "ERR: %10lu\n", irq_err_count); - } + seq_puts(p, "PMI: "); + for_each_online_cpu(j) + seq_printf(p, "%10lu ", per_cpu(irq_pmi_count, j)); + seq_puts(p, " Performance Monitoring\n"); + seq_printf(p, "ERR: %10lu\n", irq_err_count); return 0; } @@ -140,8 +106,10 @@ handle_irq(int irq) * handled by some other CPU. (or is disabled) */ static unsigned int illegal_count=0; + struct irq_desc *desc = irq_to_desc(irq); - if ((unsigned) irq > ACTUAL_NR_IRQS && illegal_count < MAX_ILLEGAL_IRQS ) { + if (!desc || ((unsigned) irq > ACTUAL_NR_IRQS && + illegal_count < MAX_ILLEGAL_IRQS)) { irq_err_count++; illegal_count++; printk(KERN_CRIT "device_interrupt: invalid interrupt %d\n", @@ -150,13 +118,6 @@ handle_irq(int irq) } irq_enter(); - /* - * __do_IRQ() must be called with IPL_MAX. Note that we do not - * explicitly enable interrupts afterwards - some MILO PALcode - * (namely LX164 one) seems to have severe problems with RTI - * at IPL 0. - */ - local_irq_disable(); - __do_IRQ(irq); + generic_handle_irq_desc(irq, desc); irq_exit(); } diff --git a/arch/alpha/kernel/irq_alpha.c b/arch/alpha/kernel/irq_alpha.c index e16aeb6e79e..1c8625cb0e2 100644 --- a/arch/alpha/kernel/irq_alpha.c +++ b/arch/alpha/kernel/irq_alpha.c @@ -10,6 +10,8 @@ #include <asm/machvec.h> #include <asm/dma.h> +#include <asm/perf_event.h> +#include <asm/mce.h> #include "proto.h" #include "irq_impl.h" @@ -43,6 +45,14 @@ do_entInt(unsigned long type, unsigned long vector, unsigned long la_ptr, struct pt_regs *regs) { struct pt_regs *old_regs; + + /* + * Disable interrupts during IRQ handling. + * Note that there is no matching local_irq_enable() due to + * severe problems with RTI at IPL0 and some MILO PALcode + * (namely LX164). + */ + local_irq_disable(); switch (type) { case 0: #ifdef CONFIG_SMP @@ -56,22 +66,7 @@ do_entInt(unsigned long type, unsigned long vector, break; case 1: old_regs = set_irq_regs(regs); -#ifdef CONFIG_SMP - { - long cpu; - - local_irq_disable(); - smp_percpu_timer_interrupt(regs); - cpu = smp_processor_id(); - if (cpu != boot_cpuid) { - kstat_cpu(cpu).irqs[RTC_IRQ]++; - } else { - handle_irq(RTC_IRQ); - } - } -#else handle_irq(RTC_IRQ); -#endif set_irq_regs(old_regs); return; case 2: @@ -218,30 +213,16 @@ process_mcheck_info(unsigned long vector, unsigned long la_ptr, * processed by PALcode, and comes in via entInt vector 1. */ -static void rtc_enable_disable(unsigned int irq) { } -static unsigned int rtc_startup(unsigned int irq) { return 0; } - struct irqaction timer_irqaction = { - .handler = timer_interrupt, - .flags = IRQF_DISABLED, + .handler = rtc_timer_interrupt, .name = "timer", }; -static struct hw_interrupt_type rtc_irq_type = { - .typename = "RTC", - .startup = rtc_startup, - .shutdown = rtc_enable_disable, - .enable = rtc_enable_disable, - .disable = rtc_enable_disable, - .ack = rtc_enable_disable, - .end = rtc_enable_disable, -}; - void __init init_rtc_irq(void) { - irq_desc[RTC_IRQ].status = IRQ_DISABLED; - irq_desc[RTC_IRQ].chip = &rtc_irq_type; + irq_set_chip_and_handler_name(RTC_IRQ, &dummy_irq_chip, + handle_percpu_irq, "RTC"); setup_irq(RTC_IRQ, &timer_irqaction); } diff --git a/arch/alpha/kernel/irq_i8259.c b/arch/alpha/kernel/irq_i8259.c index 9405bee9894..e1861c77dab 100644 --- a/arch/alpha/kernel/irq_i8259.c +++ b/arch/alpha/kernel/irq_i8259.c @@ -33,10 +33,10 @@ i8259_update_irq_hw(unsigned int irq, unsigned long mask) } inline void -i8259a_enable_irq(unsigned int irq) +i8259a_enable_irq(struct irq_data *d) { spin_lock(&i8259_irq_lock); - i8259_update_irq_hw(irq, cached_irq_mask &= ~(1 << irq)); + i8259_update_irq_hw(d->irq, cached_irq_mask &= ~(1 << d->irq)); spin_unlock(&i8259_irq_lock); } @@ -47,16 +47,18 @@ __i8259a_disable_irq(unsigned int irq) } void -i8259a_disable_irq(unsigned int irq) +i8259a_disable_irq(struct irq_data *d) { spin_lock(&i8259_irq_lock); - __i8259a_disable_irq(irq); + __i8259a_disable_irq(d->irq); spin_unlock(&i8259_irq_lock); } void -i8259a_mask_and_ack_irq(unsigned int irq) +i8259a_mask_and_ack_irq(struct irq_data *d) { + unsigned int irq = d->irq; + spin_lock(&i8259_irq_lock); __i8259a_disable_irq(irq); @@ -69,28 +71,11 @@ i8259a_mask_and_ack_irq(unsigned int irq) spin_unlock(&i8259_irq_lock); } -unsigned int -i8259a_startup_irq(unsigned int irq) -{ - i8259a_enable_irq(irq); - return 0; /* never anything pending */ -} - -void -i8259a_end_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - i8259a_enable_irq(irq); -} - -struct hw_interrupt_type i8259a_irq_type = { - .typename = "XT-PIC", - .startup = i8259a_startup_irq, - .shutdown = i8259a_disable_irq, - .enable = i8259a_enable_irq, - .disable = i8259a_disable_irq, - .ack = i8259a_mask_and_ack_irq, - .end = i8259a_end_irq, +struct irq_chip i8259a_irq_type = { + .name = "XT-PIC", + .irq_unmask = i8259a_enable_irq, + .irq_mask = i8259a_disable_irq, + .irq_mask_ack = i8259a_mask_and_ack_irq, }; void __init @@ -107,8 +92,7 @@ init_i8259a_irqs(void) outb(0xff, 0xA1); /* mask all of 8259A-2 */ for (i = 0; i < 16; i++) { - irq_desc[i].status = IRQ_DISABLED; - irq_desc[i].chip = &i8259a_irq_type; + irq_set_chip_and_handler(i, &i8259a_irq_type, handle_level_irq); } setup_irq(2, &cascade); diff --git a/arch/alpha/kernel/irq_impl.h b/arch/alpha/kernel/irq_impl.h index cc9a8a7aa27..d507a234b05 100644 --- a/arch/alpha/kernel/irq_impl.h +++ b/arch/alpha/kernel/irq_impl.h @@ -31,12 +31,10 @@ extern void init_rtc_irq(void); extern void common_init_isa_dma(void); -extern void i8259a_enable_irq(unsigned int); -extern void i8259a_disable_irq(unsigned int); -extern void i8259a_mask_and_ack_irq(unsigned int); -extern unsigned int i8259a_startup_irq(unsigned int); -extern void i8259a_end_irq(unsigned int); -extern struct hw_interrupt_type i8259a_irq_type; +extern void i8259a_enable_irq(struct irq_data *d); +extern void i8259a_disable_irq(struct irq_data *d); +extern void i8259a_mask_and_ack_irq(struct irq_data *d); +extern struct irq_chip i8259a_irq_type; extern void init_i8259a_irqs(void); extern void handle_irq(int irq); diff --git a/arch/alpha/kernel/irq_pyxis.c b/arch/alpha/kernel/irq_pyxis.c index d53edbccbfe..13c97a5b31e 100644 --- a/arch/alpha/kernel/irq_pyxis.c +++ b/arch/alpha/kernel/irq_pyxis.c @@ -29,35 +29,21 @@ pyxis_update_irq_hw(unsigned long mask) } static inline void -pyxis_enable_irq(unsigned int irq) +pyxis_enable_irq(struct irq_data *d) { - pyxis_update_irq_hw(cached_irq_mask |= 1UL << (irq - 16)); + pyxis_update_irq_hw(cached_irq_mask |= 1UL << (d->irq - 16)); } static void -pyxis_disable_irq(unsigned int irq) +pyxis_disable_irq(struct irq_data *d) { - pyxis_update_irq_hw(cached_irq_mask &= ~(1UL << (irq - 16))); -} - -static unsigned int -pyxis_startup_irq(unsigned int irq) -{ - pyxis_enable_irq(irq); - return 0; -} - -static void -pyxis_end_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - pyxis_enable_irq(irq); + pyxis_update_irq_hw(cached_irq_mask &= ~(1UL << (d->irq - 16))); } static void -pyxis_mask_and_ack_irq(unsigned int irq) +pyxis_mask_and_ack_irq(struct irq_data *d) { - unsigned long bit = 1UL << (irq - 16); + unsigned long bit = 1UL << (d->irq - 16); unsigned long mask = cached_irq_mask &= ~bit; /* Disable the interrupt. */ @@ -70,14 +56,11 @@ pyxis_mask_and_ack_irq(unsigned int irq) *(vulp)PYXIS_INT_MASK; } -static struct hw_interrupt_type pyxis_irq_type = { - .typename = "PYXIS", - .startup = pyxis_startup_irq, - .shutdown = pyxis_disable_irq, - .enable = pyxis_enable_irq, - .disable = pyxis_disable_irq, - .ack = pyxis_mask_and_ack_irq, - .end = pyxis_end_irq, +static struct irq_chip pyxis_irq_type = { + .name = "PYXIS", + .irq_mask_ack = pyxis_mask_and_ack_irq, + .irq_mask = pyxis_disable_irq, + .irq_unmask = pyxis_enable_irq, }; void @@ -119,8 +102,8 @@ init_pyxis_irqs(unsigned long ignore_mask) for (i = 16; i < 48; ++i) { if ((ignore_mask >> i) & 1) continue; - irq_desc[i].status = IRQ_DISABLED | IRQ_LEVEL; - irq_desc[i].chip = &pyxis_irq_type; + irq_set_chip_and_handler(i, &pyxis_irq_type, handle_level_irq); + irq_set_status_flags(i, IRQ_LEVEL); } setup_irq(16+7, &isa_cascade_irqaction); diff --git a/arch/alpha/kernel/irq_srm.c b/arch/alpha/kernel/irq_srm.c index 32212014fbe..a79fa30e755 100644 --- a/arch/alpha/kernel/irq_srm.c +++ b/arch/alpha/kernel/irq_srm.c @@ -18,44 +18,27 @@ DEFINE_SPINLOCK(srm_irq_lock); static inline void -srm_enable_irq(unsigned int irq) +srm_enable_irq(struct irq_data *d) { spin_lock(&srm_irq_lock); - cserve_ena(irq - 16); + cserve_ena(d->irq - 16); spin_unlock(&srm_irq_lock); } static void -srm_disable_irq(unsigned int irq) +srm_disable_irq(struct irq_data *d) { spin_lock(&srm_irq_lock); - cserve_dis(irq - 16); + cserve_dis(d->irq - 16); spin_unlock(&srm_irq_lock); } -static unsigned int -srm_startup_irq(unsigned int irq) -{ - srm_enable_irq(irq); - return 0; -} - -static void -srm_end_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - srm_enable_irq(irq); -} - /* Handle interrupts from the SRM, assuming no additional weirdness. */ -static struct hw_interrupt_type srm_irq_type = { - .typename = "SRM", - .startup = srm_startup_irq, - .shutdown = srm_disable_irq, - .enable = srm_enable_irq, - .disable = srm_disable_irq, - .ack = srm_disable_irq, - .end = srm_end_irq, +static struct irq_chip srm_irq_type = { + .name = "SRM", + .irq_unmask = srm_enable_irq, + .irq_mask = srm_disable_irq, + .irq_mask_ack = srm_disable_irq, }; void __init @@ -63,11 +46,13 @@ init_srm_irqs(long max, unsigned long ignore_mask) { long i; + if (NR_IRQS <= 16) + return; for (i = 16; i < max; ++i) { if (i < 64 && ((ignore_mask >> i) & 1)) continue; - irq_desc[i].status = IRQ_DISABLED | IRQ_LEVEL; - irq_desc[i].chip = &srm_irq_type; + irq_set_chip_and_handler(i, &srm_irq_type, handle_level_irq); + irq_set_status_flags(i, IRQ_LEVEL); } } diff --git a/arch/alpha/kernel/machvec_impl.h b/arch/alpha/kernel/machvec_impl.h index 466c9dff818..f54bdf658cd 100644 --- a/arch/alpha/kernel/machvec_impl.h +++ b/arch/alpha/kernel/machvec_impl.h @@ -25,6 +25,9 @@ #ifdef MCPCIA_ONE_HAE_WINDOW #define MCPCIA_HAE_ADDRESS (&alpha_mv.hae_cache) #endif +#ifdef T2_ONE_HAE_WINDOW +#define T2_HAE_ADDRESS (&alpha_mv.hae_cache) +#endif /* Only a few systems don't define IACK_SC, handling all interrupts through the SRM console. But splitting out that one case from IO() below @@ -40,7 +43,7 @@ #define CAT1(x,y) x##y #define CAT(x,y) CAT1(x,y) -#define DO_DEFAULT_RTC .rtc_port = 0x70 +#define DO_DEFAULT_RTC .rtc_port = 0x70 #define DO_EV4_MMU \ .max_asn = EV4_MAX_ASN, \ diff --git a/arch/alpha/kernel/module.c b/arch/alpha/kernel/module.c index 026ba9af6d6..2fd00b7077e 100644 --- a/arch/alpha/kernel/module.c +++ b/arch/alpha/kernel/module.c @@ -29,20 +29,6 @@ #define DEBUGP(fmt...) #endif -void * -module_alloc(unsigned long size) -{ - if (size == 0) - return NULL; - return vmalloc(size); -} - -void -module_free(struct module *mod, void *module_region) -{ - vfree(module_region); -} - /* Allocate the GOT at the end of the core sections. */ struct got_entry { @@ -120,6 +106,12 @@ module_frob_arch_sections(Elf64_Ehdr *hdr, Elf64_Shdr *sechdrs, nsyms = symtab->sh_size / sizeof(Elf64_Sym); chains = kcalloc(nsyms, sizeof(struct got_entry), GFP_KERNEL); + if (!chains) { + printk(KERN_ERR + "module %s: no memory for symbol chain buffer\n", + me->name); + return -ENOMEM; + } got->sh_size = 0; got->sh_addralign = 8; @@ -150,14 +142,6 @@ module_frob_arch_sections(Elf64_Ehdr *hdr, Elf64_Shdr *sechdrs, } int -apply_relocate(Elf64_Shdr *sechdrs, const char *strtab, unsigned int symindex, - unsigned int relsec, struct module *me) -{ - printk(KERN_ERR "module %s: REL relocation unsupported\n", me->name); - return -ENOEXEC; -} - -int apply_relocate_add(Elf64_Shdr *sechdrs, const char *strtab, unsigned int symindex, unsigned int relsec, struct module *me) @@ -296,15 +280,3 @@ apply_relocate_add(Elf64_Shdr *sechdrs, const char *strtab, return 0; } - -int -module_finalize(const Elf_Ehdr *hdr, const Elf_Shdr *sechdrs, - struct module *me) -{ - return 0; -} - -void -module_arch_cleanup(struct module *mod) -{ -} diff --git a/arch/alpha/kernel/ns87312.c b/arch/alpha/kernel/ns87312.c deleted file mode 100644 index 342b56d24c2..00000000000 --- a/arch/alpha/kernel/ns87312.c +++ /dev/null @@ -1,38 +0,0 @@ -/* - * linux/arch/alpha/kernel/ns87312.c - */ - -#include <linux/init.h> -#include <asm/io.h> -#include "proto.h" - - -/* - * The SRM console *disables* the IDE interface, this code ensures it's - * enabled. - * - * This code bangs on a control register of the 87312 Super I/O chip - * that implements parallel port/serial ports/IDE/FDI. Depending on - * the motherboard, the Super I/O chip can be configured through a - * pair of registers that are located either at I/O ports 0x26e/0x26f - * or 0x398/0x399. Unfortunately, autodetecting which base address is - * in use works only once (right after a reset). The Super I/O chip - * has the additional quirk that configuration register data must be - * written twice (I believe this is a safety feature to prevent - * accidental modification---fun, isn't it?). - */ - -void __init -ns87312_enable_ide(long ide_base) -{ - int data; - unsigned long flags; - - local_irq_save(flags); - outb(0, ide_base); /* set the index register for reg #0 */ - data = inb(ide_base+1); /* read the current contents */ - outb(0, ide_base); /* set the index register for reg #0 */ - outb(data | 0x40, ide_base+1); /* turn on IDE */ - outb(data | 0x40, ide_base+1); /* turn on IDE, really! */ - local_irq_restore(flags); -} diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c index 8c71daf94a5..1402fcc11c2 100644 --- a/arch/alpha/kernel/osf_sys.c +++ b/arch/alpha/kernel/osf_sys.c @@ -15,12 +15,10 @@ #include <linux/kernel.h> #include <linux/mm.h> #include <linux/smp.h> -#include <linux/smp_lock.h> #include <linux/stddef.h> #include <linux/syscalls.h> #include <linux/unistd.h> #include <linux/ptrace.h> -#include <linux/slab.h> #include <linux/user.h> #include <linux/utsname.h> #include <linux/time.h> @@ -37,25 +35,23 @@ #include <linux/uio.h> #include <linux/vfs.h> #include <linux/rcupdate.h> +#include <linux/slab.h> #include <asm/fpu.h> #include <asm/io.h> #include <asm/uaccess.h> -#include <asm/system.h> #include <asm/sysinfo.h> +#include <asm/thread_info.h> #include <asm/hwrpb.h> #include <asm/processor.h> -extern int do_pipe(int *); - /* * Brk needs to return an error. Still support Linux's brk(0) query idiom, * which OSF programs just shouldn't be doing. We're still not quite * identical to OSF as we don't return 0 on success, but doing otherwise * would require changes to libc. Hopefully this is good enough. */ -asmlinkage unsigned long -osf_brk(unsigned long brk) +SYSCALL_DEFINE1(osf_brk, unsigned long, brk) { unsigned long retval = sys_brk(brk); if (brk && brk != retval) @@ -66,21 +62,20 @@ osf_brk(unsigned long brk) /* * This is pure guess-work.. */ -asmlinkage int -osf_set_program_attributes(unsigned long text_start, unsigned long text_len, - unsigned long bss_start, unsigned long bss_len) +SYSCALL_DEFINE4(osf_set_program_attributes, unsigned long, text_start, + unsigned long, text_len, unsigned long, bss_start, + unsigned long, bss_len) { struct mm_struct *mm; - lock_kernel(); mm = current->mm; mm->end_code = bss_start + bss_len; + mm->start_brk = bss_start + bss_len; mm->brk = bss_start + bss_len; #if 0 printk("set_program_attributes(%lx %lx %lx %lx)\n", text_start, text_len, bss_start, bss_len); #endif - unlock_kernel(); return 0; } @@ -101,6 +96,7 @@ struct osf_dirent { }; struct osf_dirent_callback { + struct dir_context ctx; struct osf_dirent __user *dirent; long __user *basep; unsigned int count; @@ -120,87 +116,112 @@ osf_filldir(void *__buf, const char *name, int namlen, loff_t offset, if (reclen > buf->count) return -EINVAL; d_ino = ino; - if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) + if (sizeof(d_ino) < sizeof(ino) && d_ino != ino) { + buf->error = -EOVERFLOW; return -EOVERFLOW; + } if (buf->basep) { if (put_user(offset, buf->basep)) - return -EFAULT; + goto Efault; buf->basep = NULL; } dirent = buf->dirent; - put_user(d_ino, &dirent->d_ino); - put_user(namlen, &dirent->d_namlen); - put_user(reclen, &dirent->d_reclen); - if (copy_to_user(dirent->d_name, name, namlen) || + if (put_user(d_ino, &dirent->d_ino) || + put_user(namlen, &dirent->d_namlen) || + put_user(reclen, &dirent->d_reclen) || + copy_to_user(dirent->d_name, name, namlen) || put_user(0, dirent->d_name + namlen)) - return -EFAULT; + goto Efault; dirent = (void __user *)dirent + reclen; buf->dirent = dirent; buf->count -= reclen; return 0; +Efault: + buf->error = -EFAULT; + return -EFAULT; } -asmlinkage int -osf_getdirentries(unsigned int fd, struct osf_dirent __user *dirent, - unsigned int count, long __user *basep) +SYSCALL_DEFINE4(osf_getdirentries, unsigned int, fd, + struct osf_dirent __user *, dirent, unsigned int, count, + long __user *, basep) { int error; - struct file *file; - struct osf_dirent_callback buf; - - error = -EBADF; - file = fget(fd); - if (!file) - goto out; - - buf.dirent = dirent; - buf.basep = basep; - buf.count = count; - buf.error = 0; + struct fd arg = fdget(fd); + struct osf_dirent_callback buf = { + .ctx.actor = osf_filldir, + .dirent = dirent, + .basep = basep, + .count = count + }; - error = vfs_readdir(file, osf_filldir, &buf); - if (error < 0) - goto out_putf; + if (!arg.file) + return -EBADF; - error = buf.error; + error = iterate_dir(arg.file, &buf.ctx); + if (error >= 0) + error = buf.error; if (count != buf.count) error = count - buf.count; - out_putf: - fput(file); - out: + fdput(arg); return error; } #undef NAME_OFFSET -asmlinkage unsigned long -osf_mmap(unsigned long addr, unsigned long len, unsigned long prot, - unsigned long flags, unsigned long fd, unsigned long off) +SYSCALL_DEFINE6(osf_mmap, unsigned long, addr, unsigned long, len, + unsigned long, prot, unsigned long, flags, unsigned long, fd, + unsigned long, off) { - struct file *file = NULL; - unsigned long ret = -EBADF; + unsigned long ret = -EINVAL; #if 0 if (flags & (_MAP_HASSEMAPHORE | _MAP_INHERIT | _MAP_UNALIGNED)) printk("%s: unimplemented OSF mmap flags %04lx\n", current->comm, flags); #endif - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - down_write(¤t->mm->mmap_sem); - ret = do_mmap(file, addr, len, prot, flags, off); - up_write(¤t->mm->mmap_sem); - if (file) - fput(file); + if ((off + PAGE_ALIGN(len)) < off) + goto out; + if (off & ~PAGE_MASK) + goto out; + ret = sys_mmap_pgoff(addr, len, prot, flags, fd, off >> PAGE_SHIFT); out: return ret; } +struct osf_stat { + int st_dev; + int st_pad1; + unsigned st_mode; + unsigned short st_nlink; + short st_nlink_reserved; + unsigned st_uid; + unsigned st_gid; + int st_rdev; + int st_ldev; + long st_size; + int st_pad2; + int st_uatime; + int st_pad3; + int st_umtime; + int st_pad4; + int st_uctime; + int st_pad5; + int st_pad6; + unsigned st_flags; + unsigned st_gen; + long st_spare[4]; + unsigned st_ino; + int st_ino_reserved; + int st_atime; + int st_atime_reserved; + int st_mtime; + int st_mtime_reserved; + int st_ctime; + int st_ctime_reserved; + long st_blksize; + long st_blocks; +}; /* * The OSF/1 statfs structure is much larger, but this should @@ -219,6 +240,60 @@ struct osf_statfs { __kernel_fsid_t f_fsid; }; +struct osf_statfs64 { + short f_type; + short f_flags; + int f_pad1; + int f_pad2; + int f_pad3; + int f_pad4; + int f_pad5; + int f_pad6; + int f_pad7; + __kernel_fsid_t f_fsid; + u_short f_namemax; + short f_reserved1; + int f_spare[8]; + char f_pad8[90]; + char f_pad9[90]; + long mount_info[10]; + u_long f_flags2; + long f_spare2[14]; + long f_fsize; + long f_bsize; + long f_blocks; + long f_bfree; + long f_bavail; + long f_files; + long f_ffree; +}; + +static int +linux_to_osf_stat(struct kstat *lstat, struct osf_stat __user *osf_stat) +{ + struct osf_stat tmp = { 0 }; + + tmp.st_dev = lstat->dev; + tmp.st_mode = lstat->mode; + tmp.st_nlink = lstat->nlink; + tmp.st_uid = from_kuid_munged(current_user_ns(), lstat->uid); + tmp.st_gid = from_kgid_munged(current_user_ns(), lstat->gid); + tmp.st_rdev = lstat->rdev; + tmp.st_ldev = lstat->rdev; + tmp.st_size = lstat->size; + tmp.st_uatime = lstat->atime.tv_nsec / 1000; + tmp.st_umtime = lstat->mtime.tv_nsec / 1000; + tmp.st_uctime = lstat->ctime.tv_nsec / 1000; + tmp.st_ino = lstat->ino; + tmp.st_atime = lstat->atime.tv_sec; + tmp.st_mtime = lstat->mtime.tv_sec; + tmp.st_ctime = lstat->ctime.tv_sec; + tmp.st_blksize = lstat->blksize; + tmp.st_blocks = lstat->blocks; + + return copy_to_user(osf_stat, &tmp, sizeof(tmp)) ? -EFAULT : 0; +} + static int linux_to_osf_statfs(struct kstatfs *linux_stat, struct osf_statfs __user *osf_stat, unsigned long bufsiz) @@ -241,43 +316,99 @@ linux_to_osf_statfs(struct kstatfs *linux_stat, struct osf_statfs __user *osf_st } static int -do_osf_statfs(struct dentry * dentry, struct osf_statfs __user *buffer, - unsigned long bufsiz) +linux_to_osf_statfs64(struct kstatfs *linux_stat, struct osf_statfs64 __user *osf_stat, + unsigned long bufsiz) +{ + struct osf_statfs64 tmp_stat = { 0 }; + + tmp_stat.f_type = linux_stat->f_type; + tmp_stat.f_fsize = linux_stat->f_frsize; + tmp_stat.f_bsize = linux_stat->f_bsize; + tmp_stat.f_blocks = linux_stat->f_blocks; + tmp_stat.f_bfree = linux_stat->f_bfree; + tmp_stat.f_bavail = linux_stat->f_bavail; + tmp_stat.f_files = linux_stat->f_files; + tmp_stat.f_ffree = linux_stat->f_ffree; + tmp_stat.f_fsid = linux_stat->f_fsid; + if (bufsiz > sizeof(tmp_stat)) + bufsiz = sizeof(tmp_stat); + return copy_to_user(osf_stat, &tmp_stat, bufsiz) ? -EFAULT : 0; +} + +SYSCALL_DEFINE3(osf_statfs, const char __user *, pathname, + struct osf_statfs __user *, buffer, unsigned long, bufsiz) { struct kstatfs linux_stat; - int error = vfs_statfs(dentry, &linux_stat); + int error = user_statfs(pathname, &linux_stat); if (!error) error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz); return error; } -asmlinkage int -osf_statfs(char __user *path, struct osf_statfs __user *buffer, unsigned long bufsiz) +SYSCALL_DEFINE2(osf_stat, char __user *, name, struct osf_stat __user *, buf) { - struct nameidata nd; - int retval; + struct kstat stat; + int error; - retval = user_path_walk(path, &nd); - if (!retval) { - retval = do_osf_statfs(nd.path.dentry, buffer, bufsiz); - path_put(&nd.path); - } - return retval; + error = vfs_stat(name, &stat); + if (error) + return error; + + return linux_to_osf_stat(&stat, buf); } -asmlinkage int -osf_fstatfs(unsigned long fd, struct osf_statfs __user *buffer, unsigned long bufsiz) +SYSCALL_DEFINE2(osf_lstat, char __user *, name, struct osf_stat __user *, buf) { - struct file *file; - int retval; + struct kstat stat; + int error; - retval = -EBADF; - file = fget(fd); - if (file) { - retval = do_osf_statfs(file->f_path.dentry, buffer, bufsiz); - fput(file); - } - return retval; + error = vfs_lstat(name, &stat); + if (error) + return error; + + return linux_to_osf_stat(&stat, buf); +} + +SYSCALL_DEFINE2(osf_fstat, int, fd, struct osf_stat __user *, buf) +{ + struct kstat stat; + int error; + + error = vfs_fstat(fd, &stat); + if (error) + return error; + + return linux_to_osf_stat(&stat, buf); +} + +SYSCALL_DEFINE3(osf_fstatfs, unsigned long, fd, + struct osf_statfs __user *, buffer, unsigned long, bufsiz) +{ + struct kstatfs linux_stat; + int error = fd_statfs(fd, &linux_stat); + if (!error) + error = linux_to_osf_statfs(&linux_stat, buffer, bufsiz); + return error; +} + +SYSCALL_DEFINE3(osf_statfs64, char __user *, pathname, + struct osf_statfs64 __user *, buffer, unsigned long, bufsiz) +{ + struct kstatfs linux_stat; + int error = user_statfs(pathname, &linux_stat); + if (!error) + error = linux_to_osf_statfs64(&linux_stat, buffer, bufsiz); + return error; +} + +SYSCALL_DEFINE3(osf_fstatfs64, unsigned long, fd, + struct osf_statfs64 __user *, buffer, unsigned long, bufsiz) +{ + struct kstatfs linux_stat; + int error = fd_statfs(fd, &linux_stat); + if (!error) + error = linux_to_osf_statfs64(&linux_stat, buffer, bufsiz); + return error; } /* @@ -315,11 +446,11 @@ struct procfs_args { * unhappy with OSF UFS. [CHECKME] */ static int -osf_ufs_mount(char *dirname, struct ufs_args __user *args, int flags) +osf_ufs_mount(const char *dirname, struct ufs_args __user *args, int flags) { int retval; struct cdfs_args tmp; - char *devname; + struct filename *devname; retval = -EFAULT; if (copy_from_user(&tmp, args, sizeof(tmp))) @@ -328,18 +459,18 @@ osf_ufs_mount(char *dirname, struct ufs_args __user *args, int flags) retval = PTR_ERR(devname); if (IS_ERR(devname)) goto out; - retval = do_mount(devname, dirname, "ext2", flags, NULL); + retval = do_mount(devname->name, dirname, "ext2", flags, NULL); putname(devname); out: return retval; } static int -osf_cdfs_mount(char *dirname, struct cdfs_args __user *args, int flags) +osf_cdfs_mount(const char *dirname, struct cdfs_args __user *args, int flags) { int retval; struct cdfs_args tmp; - char *devname; + struct filename *devname; retval = -EFAULT; if (copy_from_user(&tmp, args, sizeof(tmp))) @@ -348,14 +479,14 @@ osf_cdfs_mount(char *dirname, struct cdfs_args __user *args, int flags) retval = PTR_ERR(devname); if (IS_ERR(devname)) goto out; - retval = do_mount(devname, dirname, "iso9660", flags, NULL); + retval = do_mount(devname->name, dirname, "iso9660", flags, NULL); putname(devname); out: return retval; } static int -osf_procfs_mount(char *dirname, struct procfs_args __user *args, int flags) +osf_procfs_mount(const char *dirname, struct procfs_args __user *args, int flags) { struct procfs_args tmp; @@ -365,13 +496,11 @@ osf_procfs_mount(char *dirname, struct procfs_args __user *args, int flags) return do_mount("", dirname, "proc", flags, NULL); } -asmlinkage int -osf_mount(unsigned long typenr, char __user *path, int flag, void __user *data) +SYSCALL_DEFINE4(osf_mount, unsigned long, typenr, const char __user *, path, + int, flag, void __user *, data) { - int retval = -EINVAL; - char *name; - - lock_kernel(); + int retval; + struct filename *name; name = getname(path); retval = PTR_ERR(name); @@ -379,25 +508,24 @@ osf_mount(unsigned long typenr, char __user *path, int flag, void __user *data) goto out; switch (typenr) { case 1: - retval = osf_ufs_mount(name, data, flag); + retval = osf_ufs_mount(name->name, data, flag); break; case 6: - retval = osf_cdfs_mount(name, data, flag); + retval = osf_cdfs_mount(name->name, data, flag); break; case 9: - retval = osf_procfs_mount(name, data, flag); + retval = osf_procfs_mount(name->name, data, flag); break; default: + retval = -EINVAL; printk("osf_mount(%ld, %x)\n", typenr, flag); } putname(name); out: - unlock_kernel(); return retval; } -asmlinkage int -osf_utsname(char __user *name) +SYSCALL_DEFINE1(osf_utsname, char __user *, name) { int error; @@ -420,14 +548,12 @@ osf_utsname(char __user *name) return error; } -asmlinkage unsigned long -sys_getpagesize(void) +SYSCALL_DEFINE0(getpagesize) { return PAGE_SIZE; } -asmlinkage unsigned long -sys_getdtablesize(void) +SYSCALL_DEFINE0(getdtablesize) { return sysctl_nr_open; } @@ -435,8 +561,7 @@ sys_getdtablesize(void) /* * For compatibility with OSF/1 only. Use utsname(2) instead. */ -asmlinkage int -osf_getdomainname(char __user *name, int namelen) +SYSCALL_DEFINE2(osf_getdomainname, char __user *, name, int, namelen) { unsigned len; int i; @@ -445,7 +570,7 @@ osf_getdomainname(char __user *name, int namelen) return -EFAULT; len = namelen; - if (namelen > 32) + if (len > 32) len = 32; down_read(&uts_sem); @@ -524,13 +649,12 @@ enum pl_code { PL_DEL = 5, PL_FDEL = 6 }; -asmlinkage long -osf_proplist_syscall(enum pl_code code, union pl_args __user *args) +SYSCALL_DEFINE2(osf_proplist_syscall, enum pl_code, code, + union pl_args __user *, args) { long error; int __user *min_buf_size_ptr; - lock_kernel(); switch (code) { case PL_SET: if (get_user(error, &args->set.nbytes)) @@ -560,12 +684,11 @@ osf_proplist_syscall(enum pl_code code, union pl_args __user *args) error = -EOPNOTSUPP; break; }; - unlock_kernel(); return error; } -asmlinkage int -osf_sigstack(struct sigstack __user *uss, struct sigstack __user *uoss) +SYSCALL_DEFINE2(osf_sigstack, struct sigstack __user *, uss, + struct sigstack __user *, uoss) { unsigned long usp = rdusp(); unsigned long oss_sp = current->sas_ss_sp + current->sas_ss_size; @@ -605,10 +728,9 @@ osf_sigstack(struct sigstack __user *uss, struct sigstack __user *uoss) return error; } -asmlinkage long -osf_sysinfo(int command, char __user *buf, long count) +SYSCALL_DEFINE3(osf_sysinfo, int, command, char __user *, buf, long, count) { - char *sysinfo_table[] = { + const char *sysinfo_table[] = { utsname()->sysname, utsname()->nodename, utsname()->release, @@ -620,7 +742,7 @@ osf_sysinfo(int command, char __user *buf, long count) "dummy", /* secure RPC domain */ }; unsigned long offset; - char *res; + const char *res; long len, err = -EINVAL; offset = command-1; @@ -633,7 +755,7 @@ osf_sysinfo(int command, char __user *buf, long count) down_read(&uts_sem); res = sysinfo_table[offset]; len = strlen(res)+1; - if (len > count) + if ((unsigned long)len > (unsigned long)count) len = count; if (copy_to_user(buf, res, len)) err = -EFAULT; @@ -644,9 +766,8 @@ osf_sysinfo(int command, char __user *buf, long count) return err; } -asmlinkage unsigned long -osf_getsysinfo(unsigned long op, void __user *buffer, unsigned long nbytes, - int __user *start, void __user *arg) +SYSCALL_DEFINE5(osf_getsysinfo, unsigned long, op, void __user *, buffer, + unsigned long, nbytes, int __user *, start, void __user *, arg) { unsigned long w; struct percpu_struct *cpu; @@ -673,9 +794,9 @@ osf_getsysinfo(unsigned long op, void __user *buffer, unsigned long nbytes, case GSI_UACPROC: if (nbytes < sizeof(unsigned int)) return -EINVAL; - w = (current_thread_info()->flags >> UAC_SHIFT) & UAC_BITMASK; - if (put_user(w, (unsigned int __user *)buffer)) - return -EFAULT; + w = current_thread_info()->status & UAC_BITMASK; + if (put_user(w, (unsigned int __user *)buffer)) + return -EFAULT; return 1; case GSI_PROC_TYPE: @@ -689,7 +810,7 @@ osf_getsysinfo(unsigned long op, void __user *buffer, unsigned long nbytes, return 1; case GSI_GET_HWRPB: - if (nbytes < sizeof(*hwrpb)) + if (nbytes > sizeof(*hwrpb)) return -EINVAL; if (copy_to_user(buffer, hwrpb, nbytes) != 0) return -EFAULT; @@ -702,9 +823,8 @@ osf_getsysinfo(unsigned long op, void __user *buffer, unsigned long nbytes, return -EOPNOTSUPP; } -asmlinkage unsigned long -osf_setsysinfo(unsigned long op, void __user *buffer, unsigned long nbytes, - int __user *start, void __user *arg) +SYSCALL_DEFINE5(osf_setsysinfo, unsigned long, op, void __user *, buffer, + unsigned long, nbytes, int __user *, start, void __user *, arg) { switch (op) { case SSI_IEEE_FP_CONTROL: { @@ -784,24 +904,20 @@ osf_setsysinfo(unsigned long op, void __user *buffer, unsigned long nbytes, break; case SSI_NVPAIRS: { - unsigned long v, w, i; - unsigned int old, new; + unsigned __user *p = buffer; + unsigned i; - for (i = 0; i < nbytes; ++i) { + for (i = 0, p = buffer; i < nbytes; ++i, p += 2) { + unsigned v, w, status; - if (get_user(v, 2*i + (unsigned int __user *)buffer)) - return -EFAULT; - if (get_user(w, 2*i + 1 + (unsigned int __user *)buffer)) + if (get_user(v, p) || get_user(w, p + 1)) return -EFAULT; switch (v) { case SSIN_UACPROC: - again: - old = current_thread_info()->flags; - new = old & ~(UAC_BITMASK << UAC_SHIFT); - new = new | (w & UAC_BITMASK) << UAC_SHIFT; - if (cmpxchg(¤t_thread_info()->flags, - old, new) != old) - goto again; + w &= UAC_BITMASK; + status = current_thread_info()->status; + status = (status & ~UAC_BITMASK) | w; + current_thread_info()->status = status; break; default: @@ -811,6 +927,9 @@ osf_setsysinfo(unsigned long op, void __user *buffer, unsigned long nbytes, return 0; } + case SSI_LMF: + return 0; + default: break; } @@ -877,8 +996,8 @@ jiffies_to_timeval32(unsigned long jiffies, struct timeval32 *value) value->tv_sec = jiffies / HZ; } -asmlinkage int -osf_gettimeofday(struct timeval32 __user *tv, struct timezone __user *tz) +SYSCALL_DEFINE2(osf_gettimeofday, struct timeval32 __user *, tv, + struct timezone __user *, tz) { if (tv) { struct timeval ktv; @@ -893,8 +1012,8 @@ osf_gettimeofday(struct timeval32 __user *tv, struct timezone __user *tz) return 0; } -asmlinkage int -osf_settimeofday(struct timeval32 __user *tv, struct timezone __user *tz) +SYSCALL_DEFINE2(osf_settimeofday, struct timeval32 __user *, tv, + struct timezone __user *, tz) { struct timespec kts; struct timezone ktz; @@ -913,8 +1032,7 @@ osf_settimeofday(struct timeval32 __user *tv, struct timezone __user *tz) return do_sys_settimeofday(tv ? &kts : NULL, tz ? &ktz : NULL); } -asmlinkage int -osf_getitimer(int which, struct itimerval32 __user *it) +SYSCALL_DEFINE2(osf_getitimer, int, which, struct itimerval32 __user *, it) { struct itimerval kit; int error; @@ -926,8 +1044,8 @@ osf_getitimer(int which, struct itimerval32 __user *it) return error; } -asmlinkage int -osf_setitimer(int which, struct itimerval32 __user *in, struct itimerval32 __user *out) +SYSCALL_DEFINE3(osf_setitimer, int, which, struct itimerval32 __user *, in, + struct itimerval32 __user *, out) { struct itimerval kin, kout; int error; @@ -949,8 +1067,8 @@ osf_setitimer(int which, struct itimerval32 __user *in, struct itimerval32 __use } -asmlinkage int -osf_utimes(char __user *filename, struct timeval32 __user *tvs) +SYSCALL_DEFINE2(osf_utimes, const char __user *, filename, + struct timeval32 __user *, tvs) { struct timespec tv[2]; @@ -973,95 +1091,31 @@ osf_utimes(char __user *filename, struct timeval32 __user *tvs) return do_utimes(AT_FDCWD, filename, tvs ? tv : NULL, 0); } -#define MAX_SELECT_SECONDS \ - ((unsigned long) (MAX_SCHEDULE_TIMEOUT / HZ)-1) - -asmlinkage int -osf_select(int n, fd_set __user *inp, fd_set __user *outp, fd_set __user *exp, - struct timeval32 __user *tvp) +SYSCALL_DEFINE5(osf_select, int, n, fd_set __user *, inp, fd_set __user *, outp, + fd_set __user *, exp, struct timeval32 __user *, tvp) { - fd_set_bits fds; - char *bits; - size_t size; - long timeout; - int ret = -EINVAL; - struct fdtable *fdt; - int max_fds; - - timeout = MAX_SCHEDULE_TIMEOUT; + struct timespec end_time, *to = NULL; if (tvp) { time_t sec, usec; + to = &end_time; + if (!access_ok(VERIFY_READ, tvp, sizeof(*tvp)) || __get_user(sec, &tvp->tv_sec) || __get_user(usec, &tvp->tv_usec)) { - ret = -EFAULT; - goto out_nofds; + return -EFAULT; } if (sec < 0 || usec < 0) - goto out_nofds; - - if ((unsigned long) sec < MAX_SELECT_SECONDS) { - timeout = (usec + 1000000/HZ - 1) / (1000000/HZ); - timeout += sec * (unsigned long) HZ; - } - } - - rcu_read_lock(); - fdt = files_fdtable(current->files); - max_fds = fdt->max_fds; - rcu_read_unlock(); - if (n < 0 || n > max_fds) - goto out_nofds; - - /* - * We need 6 bitmaps (in/out/ex for both incoming and outgoing), - * since we used fdset we need to allocate memory in units of - * long-words. - */ - ret = -ENOMEM; - size = FDS_BYTES(n); - bits = kmalloc(6 * size, GFP_KERNEL); - if (!bits) - goto out_nofds; - fds.in = (unsigned long *) bits; - fds.out = (unsigned long *) (bits + size); - fds.ex = (unsigned long *) (bits + 2*size); - fds.res_in = (unsigned long *) (bits + 3*size); - fds.res_out = (unsigned long *) (bits + 4*size); - fds.res_ex = (unsigned long *) (bits + 5*size); - - if ((ret = get_fd_set(n, inp->fds_bits, fds.in)) || - (ret = get_fd_set(n, outp->fds_bits, fds.out)) || - (ret = get_fd_set(n, exp->fds_bits, fds.ex))) - goto out; - zero_fd_set(n, fds.res_in); - zero_fd_set(n, fds.res_out); - zero_fd_set(n, fds.res_ex); - - ret = do_select(n, &fds, &timeout); + return -EINVAL; - /* OSF does not copy back the remaining time. */ + if (poll_select_set_timeout(to, sec, usec * NSEC_PER_USEC)) + return -EINVAL; - if (ret < 0) - goto out; - if (!ret) { - ret = -ERESTARTNOHAND; - if (signal_pending(current)) - goto out; - ret = 0; } - if (set_fd_set(n, inp->fds_bits, fds.res_in) || - set_fd_set(n, outp->fds_bits, fds.res_out) || - set_fd_set(n, exp->fds_bits, fds.res_ex)) - ret = -EFAULT; - - out: - kfree(bits); - out_nofds: - return ret; + /* OSF does not copy back the remaining time. */ + return core_sys_select(n, inp, outp, exp, to); } struct rusage32 { @@ -1083,10 +1137,10 @@ struct rusage32 { long ru_nivcsw; /* involuntary " */ }; -asmlinkage int -osf_getrusage(int who, struct rusage32 __user *ru) +SYSCALL_DEFINE2(osf_getrusage, int, who, struct rusage32 __user *, ru) { struct rusage32 r; + cputime_t utime, stime; if (who != RUSAGE_SELF && who != RUSAGE_CHILDREN) return -EINVAL; @@ -1094,8 +1148,9 @@ osf_getrusage(int who, struct rusage32 __user *ru) memset(&r, 0, sizeof(r)); switch (who) { case RUSAGE_SELF: - jiffies_to_timeval32(current->utime, &r.ru_utime); - jiffies_to_timeval32(current->stime, &r.ru_stime); + task_cputime(current, &utime, &stime); + jiffies_to_timeval32(utime, &r.ru_utime); + jiffies_to_timeval32(stime, &r.ru_stime); r.ru_minflt = current->min_flt; r.ru_majflt = current->maj_flt; break; @@ -1110,12 +1165,12 @@ osf_getrusage(int who, struct rusage32 __user *ru) return copy_to_user(ru, &r, sizeof(r)) ? -EFAULT : 0; } -asmlinkage long -osf_wait4(pid_t pid, int __user *ustatus, int options, - struct rusage32 __user *ur) +SYSCALL_DEFINE4(osf_wait4, pid_t, pid, int __user *, ustatus, int, options, + struct rusage32 __user *, ur) { struct rusage r; long ret, err; + unsigned int status = 0; mm_segment_t old_fs; if (!ur) @@ -1124,13 +1179,15 @@ osf_wait4(pid_t pid, int __user *ustatus, int options, old_fs = get_fs(); set_fs (KERNEL_DS); - ret = sys_wait4(pid, ustatus, options, (struct rusage __user *) &r); + ret = sys_wait4(pid, (unsigned int __user *) &status, options, + (struct rusage __user *) &r); set_fs (old_fs); if (!access_ok(VERIFY_WRITE, ur, sizeof(*ur))) return -EFAULT; err = 0; + err |= put_user(status, ustatus); err |= __put_user(r.ru_utime.tv_sec, &ur->ru_utime.tv_sec); err |= __put_user(r.ru_utime.tv_usec, &ur->ru_utime.tv_usec); err |= __put_user(r.ru_stime.tv_sec, &ur->ru_stime.tv_sec); @@ -1158,8 +1215,8 @@ osf_wait4(pid_t pid, int __user *ustatus, int options, * seems to be a timeval pointer, and I suspect the second * one is the time remaining.. Ho humm.. No documentation. */ -asmlinkage int -osf_usleep_thread(struct timeval32 __user *sleep, struct timeval32 __user *remain) +SYSCALL_DEFINE2(osf_usleep_thread, struct timeval32 __user *, sleep, + struct timeval32 __user *, remain) { struct timeval tmp; unsigned long ticks; @@ -1212,8 +1269,7 @@ struct timex32 { int :32; int :32; int :32; int :32; }; -asmlinkage int -sys_old_adjtimex(struct timex32 __user *txc_p) +SYSCALL_DEFINE1(old_adjtimex, struct timex32 __user *, txc_p) { struct timex txc; int ret; @@ -1245,17 +1301,15 @@ static unsigned long arch_get_unmapped_area_1(unsigned long addr, unsigned long len, unsigned long limit) { - struct vm_area_struct *vma = find_vma(current->mm, addr); - - while (1) { - /* At this point: (!vma || addr < vma->vm_end). */ - if (limit - len < addr) - return -ENOMEM; - if (!vma || addr + len <= vma->vm_start) - return addr; - addr = vma->vm_end; - vma = vma->vm_next; - } + struct vm_unmapped_area_info info; + + info.flags = 0; + info.length = len; + info.low_limit = addr; + info.high_limit = limit; + info.align_mask = 0; + info.align_offset = 0; + return vm_unmapped_area(&info); } unsigned long @@ -1324,8 +1378,8 @@ osf_fix_iov_len(const struct iovec __user *iov, unsigned long count) return 0; } -asmlinkage ssize_t -osf_readv(unsigned long fd, const struct iovec __user * vector, unsigned long count) +SYSCALL_DEFINE3(osf_readv, unsigned long, fd, + const struct iovec __user *, vector, unsigned long, count) { if (unlikely(personality(current->personality) == PER_OSF4)) if (osf_fix_iov_len(vector, count)) @@ -1333,8 +1387,8 @@ osf_readv(unsigned long fd, const struct iovec __user * vector, unsigned long co return sys_readv(fd, vector, count); } -asmlinkage ssize_t -osf_writev(unsigned long fd, const struct iovec __user * vector, unsigned long count) +SYSCALL_DEFINE3(osf_writev, unsigned long, fd, + const struct iovec __user *, vector, unsigned long, count) { if (unlikely(personality(current->personality) == PER_OSF4)) if (osf_fix_iov_len(vector, count)) @@ -1343,3 +1397,52 @@ osf_writev(unsigned long fd, const struct iovec __user * vector, unsigned long c } #endif + +SYSCALL_DEFINE2(osf_getpriority, int, which, int, who) +{ + int prio = sys_getpriority(which, who); + if (prio >= 0) { + /* Return value is the unbiased priority, i.e. 20 - prio. + This does result in negative return values, so signal + no error */ + force_successful_syscall_return(); + prio = 20 - prio; + } + return prio; +} + +SYSCALL_DEFINE0(getxuid) +{ + current_pt_regs()->r20 = sys_geteuid(); + return sys_getuid(); +} + +SYSCALL_DEFINE0(getxgid) +{ + current_pt_regs()->r20 = sys_getegid(); + return sys_getgid(); +} + +SYSCALL_DEFINE0(getxpid) +{ + current_pt_regs()->r20 = sys_getppid(); + return sys_getpid(); +} + +SYSCALL_DEFINE0(alpha_pipe) +{ + int fd[2]; + int res = do_pipe_flags(fd, 0); + if (!res) { + /* The return values are in $0 and $20. */ + current_pt_regs()->r20 = fd[1]; + res = fd[0]; + } + return res; +} + +SYSCALL_DEFINE1(sethae, unsigned long, val) +{ + current_pt_regs()->hae = val; + return 0; +} diff --git a/arch/alpha/kernel/pc873xx.c b/arch/alpha/kernel/pc873xx.c new file mode 100644 index 00000000000..27dcbff8561 --- /dev/null +++ b/arch/alpha/kernel/pc873xx.c @@ -0,0 +1,88 @@ +#include <linux/ioport.h> +#include <asm/io.h> + +#include "pc873xx.h" + +static unsigned pc873xx_probelist[] = {0x398, 0x26e, 0}; + +static char *pc873xx_names[] = { + "PC87303", "PC87306", "PC87312", "PC87332", "PC87334" +}; + +static unsigned int base, model; + + +unsigned int __init pc873xx_get_base() +{ + return base; +} + +char *__init pc873xx_get_model() +{ + return pc873xx_names[model]; +} + +static unsigned char __init pc873xx_read(unsigned int base, int reg) +{ + outb(reg, base); + return inb(base + 1); +} + +static void __init pc873xx_write(unsigned int base, int reg, unsigned char data) +{ + unsigned long flags; + + local_irq_save(flags); + outb(reg, base); + outb(data, base + 1); + outb(data, base + 1); /* Must be written twice */ + local_irq_restore(flags); +} + +int __init pc873xx_probe(void) +{ + int val, index = 0; + + while ((base = pc873xx_probelist[index++])) { + + if (request_region(base, 2, "Super IO PC873xx") == NULL) + continue; + + val = pc873xx_read(base, REG_SID); + if ((val & 0xf0) == 0x10) { + model = PC87332; + break; + } else if ((val & 0xf8) == 0x70) { + model = PC87306; + break; + } else if ((val & 0xf8) == 0x50) { + model = PC87334; + break; + } else if ((val & 0xf8) == 0x40) { + model = PC87303; + break; + } + + release_region(base, 2); + } + + return (base == 0) ? -1 : 1; +} + +void __init pc873xx_enable_epp19(void) +{ + unsigned char data; + + printk(KERN_INFO "PC873xx enabling EPP v1.9\n"); + data = pc873xx_read(base, REG_PCR); + pc873xx_write(base, REG_PCR, (data & 0xFC) | 0x02); +} + +void __init pc873xx_enable_ide(void) +{ + unsigned char data; + + printk(KERN_INFO "PC873xx enabling IDE interrupt\n"); + data = pc873xx_read(base, REG_FER); + pc873xx_write(base, REG_FER, data | 0x40); +} diff --git a/arch/alpha/kernel/pc873xx.h b/arch/alpha/kernel/pc873xx.h new file mode 100644 index 00000000000..25e16956fe3 --- /dev/null +++ b/arch/alpha/kernel/pc873xx.h @@ -0,0 +1,35 @@ + +#ifndef _PC873xx_H_ +#define _PC873xx_H_ + +/* + * Control Register Values + */ +#define REG_FER 0x00 +#define REG_FAR 0x01 +#define REG_PTR 0x02 +#define REG_FCR 0x03 +#define REG_PCR 0x04 +#define REG_KRR 0x05 +#define REG_PMC 0x06 +#define REG_TUP 0x07 +#define REG_SID 0x08 +#define REG_ASC 0x09 +#define REG_IRC 0x0e + +/* + * Model numbers + */ +#define PC87303 0 +#define PC87306 1 +#define PC87312 2 +#define PC87332 3 +#define PC87334 4 + +int pc873xx_probe(void); +unsigned int pc873xx_get_base(void); +char *pc873xx_get_model(void); +void pc873xx_enable_epp19(void); +void pc873xx_enable_ide(void); + +#endif diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c index 8ac08311f5a..df24b76f924 100644 --- a/arch/alpha/kernel/pci-noop.c +++ b/arch/alpha/kernel/pci-noop.c @@ -7,6 +7,7 @@ #include <linux/pci.h> #include <linux/init.h> #include <linux/bootmem.h> +#include <linux/gfp.h> #include <linux/capability.h> #include <linux/mm.h> #include <linux/errno.h> @@ -106,57 +107,9 @@ sys_pciconfig_write(unsigned long bus, unsigned long dfn, return -ENODEV; } -/* Stubs for the routines in pci_iommu.c: */ - -void * -pci_alloc_consistent(struct pci_dev *pdev, size_t size, dma_addr_t *dma_addrp) -{ - return NULL; -} - -void -pci_free_consistent(struct pci_dev *pdev, size_t size, void *cpu_addr, - dma_addr_t dma_addr) -{ -} - -dma_addr_t -pci_map_single(struct pci_dev *pdev, void *cpu_addr, size_t size, - int direction) -{ - return (dma_addr_t) 0; -} - -void -pci_unmap_single(struct pci_dev *pdev, dma_addr_t dma_addr, size_t size, - int direction) -{ -} - -int -pci_map_sg(struct pci_dev *pdev, struct scatterlist *sg, int nents, - int direction) -{ - return 0; -} - -void -pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sg, int nents, - int direction) -{ -} - -int -pci_dma_supported(struct pci_dev *hwdev, dma_addr_t mask) -{ - return 0; -} - -/* Generic DMA mapping functions: */ - -void * -dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) +static void *alpha_noop_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t gfp, + struct dma_attrs *attrs) { void *ret; @@ -170,11 +123,23 @@ dma_alloc_coherent(struct device *dev, size_t size, return ret; } -EXPORT_SYMBOL(dma_alloc_coherent); +static void alpha_noop_free_coherent(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_addr, + struct dma_attrs *attrs) +{ + free_pages((unsigned long)cpu_addr, get_order(size)); +} -int -dma_map_sg(struct device *dev, struct scatterlist *sgl, int nents, - enum dma_data_direction direction) +static dma_addr_t alpha_noop_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction dir, + struct dma_attrs *attrs) +{ + return page_to_pa(page) + offset; +} + +static int alpha_noop_map_sg(struct device *dev, struct scatterlist *sgl, int nents, + enum dma_data_direction dir, struct dma_attrs *attrs) { int i; struct scatterlist *sg; @@ -191,28 +156,34 @@ dma_map_sg(struct device *dev, struct scatterlist *sgl, int nents, return nents; } -EXPORT_SYMBOL(dma_map_sg); - -int -dma_set_mask(struct device *dev, u64 mask) +static int alpha_noop_mapping_error(struct device *dev, dma_addr_t dma_addr) { - if (!dev->dma_mask || !dma_supported(dev, mask)) - return -EIO; - - *dev->dma_mask = mask; - return 0; } -EXPORT_SYMBOL(dma_set_mask); -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) +static int alpha_noop_supported(struct device *dev, u64 mask) { - return NULL; + return mask < 0x00ffffffUL ? 0 : 1; } -void pci_iounmap(struct pci_dev *dev, void __iomem * addr) +static int alpha_noop_set_mask(struct device *dev, u64 mask) { + if (!dev->dma_mask || !dma_supported(dev, mask)) + return -EIO; + + *dev->dma_mask = mask; + return 0; } -EXPORT_SYMBOL(pci_iomap); -EXPORT_SYMBOL(pci_iounmap); +struct dma_map_ops alpha_noop_ops = { + .alloc = alpha_noop_alloc_coherent, + .free = alpha_noop_free_coherent, + .map_page = alpha_noop_map_page, + .map_sg = alpha_noop_map_sg, + .mapping_error = alpha_noop_mapping_error, + .dma_supported = alpha_noop_supported, + .set_dma_mask = alpha_noop_set_mask, +}; + +struct dma_map_ops *dma_ops = &alpha_noop_ops; +EXPORT_SYMBOL(dma_ops); diff --git a/arch/alpha/kernel/pci-sysfs.c b/arch/alpha/kernel/pci-sysfs.c new file mode 100644 index 00000000000..99e8d4796c9 --- /dev/null +++ b/arch/alpha/kernel/pci-sysfs.c @@ -0,0 +1,368 @@ +/* + * arch/alpha/kernel/pci-sysfs.c + * + * Copyright (C) 2009 Ivan Kokshaysky + * + * Alpha PCI resource files. + * + * Loosely based on generic HAVE_PCI_MMAP implementation in + * drivers/pci/pci-sysfs.c + */ + +#include <linux/sched.h> +#include <linux/stat.h> +#include <linux/slab.h> +#include <linux/pci.h> + +static int hose_mmap_page_range(struct pci_controller *hose, + struct vm_area_struct *vma, + enum pci_mmap_state mmap_type, int sparse) +{ + unsigned long base; + + if (mmap_type == pci_mmap_mem) + base = sparse ? hose->sparse_mem_base : hose->dense_mem_base; + else + base = sparse ? hose->sparse_io_base : hose->dense_io_base; + + vma->vm_pgoff += base >> PAGE_SHIFT; + + return io_remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff, + vma->vm_end - vma->vm_start, + vma->vm_page_prot); +} + +static int __pci_mmap_fits(struct pci_dev *pdev, int num, + struct vm_area_struct *vma, int sparse) +{ + unsigned long nr, start, size; + int shift = sparse ? 5 : 0; + + nr = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; + start = vma->vm_pgoff; + size = ((pci_resource_len(pdev, num) - 1) >> (PAGE_SHIFT - shift)) + 1; + + if (start < size && size - start >= nr) + return 1; + WARN(1, "process \"%s\" tried to map%s 0x%08lx-0x%08lx on %s BAR %d " + "(size 0x%08lx)\n", + current->comm, sparse ? " sparse" : "", start, start + nr, + pci_name(pdev), num, size); + return 0; +} + +/** + * pci_mmap_resource - map a PCI resource into user memory space + * @kobj: kobject for mapping + * @attr: struct bin_attribute for the file being mapped + * @vma: struct vm_area_struct passed into the mmap + * @sparse: address space type + * + * Use the bus mapping routines to map a PCI resource into userspace. + */ +static int pci_mmap_resource(struct kobject *kobj, + struct bin_attribute *attr, + struct vm_area_struct *vma, int sparse) +{ + struct pci_dev *pdev = to_pci_dev(container_of(kobj, + struct device, kobj)); + struct resource *res = attr->private; + enum pci_mmap_state mmap_type; + struct pci_bus_region bar; + int i; + + for (i = 0; i < PCI_ROM_RESOURCE; i++) + if (res == &pdev->resource[i]) + break; + if (i >= PCI_ROM_RESOURCE) + return -ENODEV; + + if (!__pci_mmap_fits(pdev, i, vma, sparse)) + return -EINVAL; + + if (iomem_is_exclusive(res->start)) + return -EINVAL; + + pcibios_resource_to_bus(pdev->bus, &bar, res); + vma->vm_pgoff += bar.start >> (PAGE_SHIFT - (sparse ? 5 : 0)); + mmap_type = res->flags & IORESOURCE_MEM ? pci_mmap_mem : pci_mmap_io; + + return hose_mmap_page_range(pdev->sysdata, vma, mmap_type, sparse); +} + +static int pci_mmap_resource_sparse(struct file *filp, struct kobject *kobj, + struct bin_attribute *attr, + struct vm_area_struct *vma) +{ + return pci_mmap_resource(kobj, attr, vma, 1); +} + +static int pci_mmap_resource_dense(struct file *filp, struct kobject *kobj, + struct bin_attribute *attr, + struct vm_area_struct *vma) +{ + return pci_mmap_resource(kobj, attr, vma, 0); +} + +/** + * pci_remove_resource_files - cleanup resource files + * @dev: dev to cleanup + * + * If we created resource files for @dev, remove them from sysfs and + * free their resources. + */ +void pci_remove_resource_files(struct pci_dev *pdev) +{ + int i; + + for (i = 0; i < PCI_ROM_RESOURCE; i++) { + struct bin_attribute *res_attr; + + res_attr = pdev->res_attr[i]; + if (res_attr) { + sysfs_remove_bin_file(&pdev->dev.kobj, res_attr); + kfree(res_attr); + } + + res_attr = pdev->res_attr_wc[i]; + if (res_attr) { + sysfs_remove_bin_file(&pdev->dev.kobj, res_attr); + kfree(res_attr); + } + } +} + +static int sparse_mem_mmap_fits(struct pci_dev *pdev, int num) +{ + struct pci_bus_region bar; + struct pci_controller *hose = pdev->sysdata; + long dense_offset; + unsigned long sparse_size; + + pcibios_resource_to_bus(pdev->bus, &bar, &pdev->resource[num]); + + /* All core logic chips have 4G sparse address space, except + CIA which has 16G (see xxx_SPARSE_MEM and xxx_DENSE_MEM + definitions in asm/core_xxx.h files). This corresponds + to 128M or 512M of the bus space. */ + dense_offset = (long)(hose->dense_mem_base - hose->sparse_mem_base); + sparse_size = dense_offset >= 0x400000000UL ? 0x20000000 : 0x8000000; + + return bar.end < sparse_size; +} + +static int pci_create_one_attr(struct pci_dev *pdev, int num, char *name, + char *suffix, struct bin_attribute *res_attr, + unsigned long sparse) +{ + size_t size = pci_resource_len(pdev, num); + + sprintf(name, "resource%d%s", num, suffix); + res_attr->mmap = sparse ? pci_mmap_resource_sparse : + pci_mmap_resource_dense; + res_attr->attr.name = name; + res_attr->attr.mode = S_IRUSR | S_IWUSR; + res_attr->size = sparse ? size << 5 : size; + res_attr->private = &pdev->resource[num]; + return sysfs_create_bin_file(&pdev->dev.kobj, res_attr); +} + +static int pci_create_attr(struct pci_dev *pdev, int num) +{ + /* allocate attribute structure, piggyback attribute name */ + int retval, nlen1, nlen2 = 0, res_count = 1; + unsigned long sparse_base, dense_base; + struct bin_attribute *attr; + struct pci_controller *hose = pdev->sysdata; + char *suffix, *attr_name; + + suffix = ""; /* Assume bwx machine, normal resourceN files. */ + nlen1 = 10; + + if (pdev->resource[num].flags & IORESOURCE_MEM) { + sparse_base = hose->sparse_mem_base; + dense_base = hose->dense_mem_base; + if (sparse_base && !sparse_mem_mmap_fits(pdev, num)) { + sparse_base = 0; + suffix = "_dense"; + nlen1 = 16; /* resourceN_dense */ + } + } else { + sparse_base = hose->sparse_io_base; + dense_base = hose->dense_io_base; + } + + if (sparse_base) { + suffix = "_sparse"; + nlen1 = 17; + if (dense_base) { + nlen2 = 16; /* resourceN_dense */ + res_count = 2; + } + } + + attr = kzalloc(sizeof(*attr) * res_count + nlen1 + nlen2, GFP_ATOMIC); + if (!attr) + return -ENOMEM; + + /* Create bwx, sparse or single dense file */ + attr_name = (char *)(attr + res_count); + pdev->res_attr[num] = attr; + retval = pci_create_one_attr(pdev, num, attr_name, suffix, attr, + sparse_base); + if (retval || res_count == 1) + return retval; + + /* Create dense file */ + attr_name += nlen1; + attr++; + pdev->res_attr_wc[num] = attr; + return pci_create_one_attr(pdev, num, attr_name, "_dense", attr, 0); +} + +/** + * pci_create_resource_files - create resource files in sysfs for @dev + * @dev: dev in question + * + * Walk the resources in @dev creating files for each resource available. + */ +int pci_create_resource_files(struct pci_dev *pdev) +{ + int i; + int retval; + + /* Expose the PCI resources from this device as files */ + for (i = 0; i < PCI_ROM_RESOURCE; i++) { + + /* skip empty resources */ + if (!pci_resource_len(pdev, i)) + continue; + + retval = pci_create_attr(pdev, i); + if (retval) { + pci_remove_resource_files(pdev); + return retval; + } + } + return 0; +} + +/* Legacy I/O bus mapping stuff. */ + +static int __legacy_mmap_fits(struct pci_controller *hose, + struct vm_area_struct *vma, + unsigned long res_size, int sparse) +{ + unsigned long nr, start, size; + + nr = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; + start = vma->vm_pgoff; + size = ((res_size - 1) >> PAGE_SHIFT) + 1; + + if (start < size && size - start >= nr) + return 1; + WARN(1, "process \"%s\" tried to map%s 0x%08lx-0x%08lx on hose %d " + "(size 0x%08lx)\n", + current->comm, sparse ? " sparse" : "", start, start + nr, + hose->index, size); + return 0; +} + +static inline int has_sparse(struct pci_controller *hose, + enum pci_mmap_state mmap_type) +{ + unsigned long base; + + base = (mmap_type == pci_mmap_mem) ? hose->sparse_mem_base : + hose->sparse_io_base; + + return base != 0; +} + +int pci_mmap_legacy_page_range(struct pci_bus *bus, struct vm_area_struct *vma, + enum pci_mmap_state mmap_type) +{ + struct pci_controller *hose = bus->sysdata; + int sparse = has_sparse(hose, mmap_type); + unsigned long res_size; + + res_size = (mmap_type == pci_mmap_mem) ? bus->legacy_mem->size : + bus->legacy_io->size; + if (!__legacy_mmap_fits(hose, vma, res_size, sparse)) + return -EINVAL; + + return hose_mmap_page_range(hose, vma, mmap_type, sparse); +} + +/** + * pci_adjust_legacy_attr - adjustment of legacy file attributes + * @b: bus to create files under + * @mmap_type: I/O port or memory + * + * Adjust file name and size for sparse mappings. + */ +void pci_adjust_legacy_attr(struct pci_bus *bus, enum pci_mmap_state mmap_type) +{ + struct pci_controller *hose = bus->sysdata; + + if (!has_sparse(hose, mmap_type)) + return; + + if (mmap_type == pci_mmap_mem) { + bus->legacy_mem->attr.name = "legacy_mem_sparse"; + bus->legacy_mem->size <<= 5; + } else { + bus->legacy_io->attr.name = "legacy_io_sparse"; + bus->legacy_io->size <<= 5; + } + return; +} + +/* Legacy I/O bus read/write functions */ +int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val, size_t size) +{ + struct pci_controller *hose = bus->sysdata; + + port += hose->io_space->start; + + switch(size) { + case 1: + *((u8 *)val) = inb(port); + return 1; + case 2: + if (port & 1) + return -EINVAL; + *((u16 *)val) = inw(port); + return 2; + case 4: + if (port & 3) + return -EINVAL; + *((u32 *)val) = inl(port); + return 4; + } + return -EINVAL; +} + +int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val, size_t size) +{ + struct pci_controller *hose = bus->sysdata; + + port += hose->io_space->start; + + switch(size) { + case 1: + outb(port, val); + return 1; + case 2: + if (port & 1) + return -EINVAL; + outw(port, val); + return 2; + case 4: + if (port & 3) + return -EINVAL; + outl(port, val); + return 4; + } + return -EINVAL; +} diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c index 9dc1cee4326..076c35cd6cd 100644 --- a/arch/alpha/kernel/pci.c +++ b/arch/alpha/kernel/pci.c @@ -43,12 +43,10 @@ const char *const pci_mem_names[] = { const char pci_hae0_name[] = "HAE0"; -/* Indicate whether we respect the PCI setup left by console. */ /* - * Make this long-lived so that we know when shutting down - * whether we probed only or not. + * If PCI_PROBE_ONLY in pci_flags is set, we don't change any PCI resource + * assignments. */ -int pci_probe_only; /* * The PCI controller list. @@ -61,26 +59,29 @@ struct pci_controller *pci_isa_hose; * Quirks. */ -static void __init -quirk_isa_bridge(struct pci_dev *dev) +static void quirk_isa_bridge(struct pci_dev *dev) { dev->class = PCI_CLASS_BRIDGE_ISA << 8; } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82378, quirk_isa_bridge); -static void __init -quirk_cypress(struct pci_dev *dev) +static void quirk_cypress(struct pci_dev *dev) { /* The Notorious Cy82C693 chip. */ - /* The Cypress IDE controller doesn't support native mode, but it - has programmable addresses of IDE command/control registers. - This violates PCI specifications, confuses the IDE subsystem and - causes resource conflicts between the primary HD_CMD register and - the floppy controller. Ugh. Fix that. */ + /* The generic legacy mode IDE fixup in drivers/pci/probe.c + doesn't work correctly with the Cypress IDE controller as + it has non-standard register layout. Fix that. */ if (dev->class >> 8 == PCI_CLASS_STORAGE_IDE) { - dev->resource[0].flags = 0; - dev->resource[1].flags = 0; + dev->resource[2].start = dev->resource[3].start = 0; + dev->resource[2].end = dev->resource[3].end = 0; + dev->resource[2].flags = dev->resource[3].flags = 0; + if (PCI_FUNC(dev->devfn) == 2) { + dev->resource[0].start = 0x170; + dev->resource[0].end = 0x177; + dev->resource[1].start = 0x376; + dev->resource[1].end = 0x376; + } } /* The Cypress bridge responds on the PCI bus in the address range @@ -89,7 +90,7 @@ quirk_cypress(struct pci_dev *dev) BIOS ranges (disabled after power-up), and some consoles do turn them on. So if we use a large direct-map window, or a large SG window, we must avoid the entire 0xfff00000-0xffffffff region. */ - else if (dev->class >> 8 == PCI_CLASS_BRIDGE_ISA) { + if (dev->class >> 8 == PCI_CLASS_BRIDGE_ISA) { if (__direct_map_base + __direct_map_size >= 0xfff00000UL) __direct_map_size = 0xfff00000UL - __direct_map_base; else { @@ -103,8 +104,7 @@ quirk_cypress(struct pci_dev *dev) DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_CONTAQ, PCI_DEVICE_ID_CONTAQ_82C693, quirk_cypress); /* Called for each device after PCI setup is done. */ -static void __init -pcibios_fixup_final(struct pci_dev *dev) +static void pcibios_fixup_final(struct pci_dev *dev) { unsigned int class = dev->class >> 8; @@ -121,8 +121,8 @@ DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, pcibios_fixup_final); #define MB (1024*KB) #define GB (1024*MB) -void -pcibios_align_resource(void *data, struct resource *res, +resource_size_t +pcibios_align_resource(void *data, const struct resource *res, resource_size_t size, resource_size_t align) { struct pci_dev *dev = data; @@ -163,7 +163,7 @@ pcibios_align_resource(void *data, struct resource *res, */ /* Align to multiple of size of minimum base. */ - alignto = max(0x1000UL, align); + alignto = max_t(resource_size_t, 0x1000, align); start = ALIGN(start, alignto); if (hose->sparse_mem_base && size <= 7 * 16*MB) { if (((start / (16*MB)) & 0x7) == 0) { @@ -179,7 +179,7 @@ pcibios_align_resource(void *data, struct resource *res, } } - res->start = start; + return start; } #undef KB #undef MB @@ -195,22 +195,15 @@ pcibios_init(void) subsys_initcall(pcibios_init); -char * __devinit -pcibios_setup(char *str) -{ - return str; -} - #ifdef ALPHA_RESTORE_SRM_SETUP static struct pdev_srm_saved_conf *srm_saved_configs; -void __devinit -pdev_save_srm_config(struct pci_dev *dev) +void pdev_save_srm_config(struct pci_dev *dev) { struct pdev_srm_saved_conf *tmp; static int printed = 0; - if (!alpha_using_srm || pci_probe_only) + if (!alpha_using_srm || pci_has_flag(PCI_PROBE_ONLY)) return; if (!printed) { @@ -220,7 +213,7 @@ pdev_save_srm_config(struct pci_dev *dev) tmp = kmalloc(sizeof(*tmp), GFP_KERNEL); if (!tmp) { - printk(KERN_ERR "%s: kmalloc() failed!\n", __FUNCTION__); + printk(KERN_ERR "%s: kmalloc() failed!\n", __func__); return; } tmp->next = srm_saved_configs; @@ -237,7 +230,7 @@ pci_restore_srm_config(void) struct pdev_srm_saved_conf *tmp; /* No need to restore if probed only. */ - if (pci_probe_only) + if (pci_has_flag(PCI_PROBE_ONLY)) return; /* Restore SRM config. */ @@ -247,153 +240,18 @@ pci_restore_srm_config(void) } #endif -void __devinit -pcibios_fixup_resource(struct resource *res, struct resource *root) -{ - res->start += root->start; - res->end += root->start; -} - -void __devinit -pcibios_fixup_device_resources(struct pci_dev *dev, struct pci_bus *bus) +void pcibios_fixup_bus(struct pci_bus *bus) { - /* Update device resources. */ - struct pci_controller *hose = (struct pci_controller *)bus->sysdata; - int i; - - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - if (!dev->resource[i].start) - continue; - if (dev->resource[i].flags & IORESOURCE_IO) - pcibios_fixup_resource(&dev->resource[i], - hose->io_space); - else if (dev->resource[i].flags & IORESOURCE_MEM) - pcibios_fixup_resource(&dev->resource[i], - hose->mem_space); - } -} - -void __devinit -pcibios_fixup_bus(struct pci_bus *bus) -{ - /* Propagate hose info into the subordinate devices. */ - - struct pci_controller *hose = bus->sysdata; struct pci_dev *dev = bus->self; - if (!dev) { - /* Root bus. */ - u32 pci_mem_end; - u32 sg_base = hose->sg_pci ? hose->sg_pci->dma_base : ~0; - unsigned long end; - - bus->resource[0] = hose->io_space; - bus->resource[1] = hose->mem_space; - - /* Adjust hose mem_space limit to prevent PCI allocations - in the iommu windows. */ - pci_mem_end = min((u32)__direct_map_base, sg_base) - 1; - end = hose->mem_space->start + pci_mem_end; - if (hose->mem_space->end > end) - hose->mem_space->end = end; - } else if (pci_probe_only && + if (pci_has_flag(PCI_PROBE_ONLY) && dev && (dev->class >> 8) == PCI_CLASS_BRIDGE_PCI) { pci_read_bridge_bases(bus); - pcibios_fixup_device_resources(dev, bus); } list_for_each_entry(dev, &bus->devices, bus_list) { pdev_save_srm_config(dev); - if ((dev->class >> 8) != PCI_CLASS_BRIDGE_PCI) - pcibios_fixup_device_resources(dev, bus); - } -} - -void __init -pcibios_update_irq(struct pci_dev *dev, int irq) -{ - pci_write_config_byte(dev, PCI_INTERRUPT_LINE, irq); -} - -/* Most Alphas have straight-forward swizzling needs. */ - -u8 __init -common_swizzle(struct pci_dev *dev, u8 *pinp) -{ - u8 pin = *pinp; - - while (dev->bus->parent) { - pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn)); - /* Move up the chain of bridges. */ - dev = dev->bus->self; - } - *pinp = pin; - - /* The slot is the slot of the last bridge. */ - return PCI_SLOT(dev->devfn); -} - -void __devinit -pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, - struct resource *res) -{ - struct pci_controller *hose = (struct pci_controller *)dev->sysdata; - unsigned long offset = 0; - - if (res->flags & IORESOURCE_IO) - offset = hose->io_space->start; - else if (res->flags & IORESOURCE_MEM) - offset = hose->mem_space->start; - - region->start = res->start - offset; - region->end = res->end - offset; -} - -void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res, - struct pci_bus_region *region) -{ - struct pci_controller *hose = (struct pci_controller *)dev->sysdata; - unsigned long offset = 0; - - if (res->flags & IORESOURCE_IO) - offset = hose->io_space->start; - else if (res->flags & IORESOURCE_MEM) - offset = hose->mem_space->start; - - res->start = region->start + offset; - res->end = region->end + offset; -} - -#ifdef CONFIG_HOTPLUG -EXPORT_SYMBOL(pcibios_resource_to_bus); -EXPORT_SYMBOL(pcibios_bus_to_resource); -#endif - -int -pcibios_enable_device(struct pci_dev *dev, int mask) -{ - u16 cmd, oldcmd; - int i; - - pci_read_config_word(dev, PCI_COMMAND, &cmd); - oldcmd = cmd; - - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - struct resource *res = &dev->resource[i]; - - if (res->flags & IORESOURCE_IO) - cmd |= PCI_COMMAND_IO; - else if (res->flags & IORESOURCE_MEM) - cmd |= PCI_COMMAND_MEMORY; - } - - if (cmd != oldcmd) { - printk(KERN_DEBUG "PCI: Enabling device: (%s), cmd %x\n", - pci_name(dev), cmd); - /* Enable the appropriate bits in the PCI command register. */ - pci_write_config_word(dev, PCI_COMMAND, cmd); } - return 0; } /* @@ -412,7 +270,7 @@ pcibios_set_master(struct pci_dev *dev) pci_write_config_byte(dev, PCI_LATENCY_TIMER, 64); } -static void __init +void __init pcibios_claim_one_bus(struct pci_bus *b) { struct pci_dev *dev; @@ -426,7 +284,9 @@ pcibios_claim_one_bus(struct pci_bus *b) if (r->parent || !r->start || !r->flags) continue; - pci_claim_resource(dev, i); + if (pci_has_flag(PCI_PROBE_ONLY) || + (r->flags & IORESOURCE_PCI_FIXED)) + pci_claim_resource(dev, i); } } @@ -447,16 +307,36 @@ void __init common_init_pci(void) { struct pci_controller *hose; + struct list_head resources; struct pci_bus *bus; int next_busno; int need_domain_info = 0; + u32 pci_mem_end; + u32 sg_base; + unsigned long end; /* Scan all of the recorded PCI controllers. */ for (next_busno = 0, hose = hose_head; hose; hose = hose->next) { - bus = pci_scan_bus(next_busno, alpha_mv.pci_ops, hose); + sg_base = hose->sg_pci ? hose->sg_pci->dma_base : ~0; + + /* Adjust hose mem_space limit to prevent PCI allocations + in the iommu windows. */ + pci_mem_end = min((u32)__direct_map_base, sg_base) - 1; + end = hose->mem_space->start + pci_mem_end; + if (hose->mem_space->end > end) + hose->mem_space->end = end; + + INIT_LIST_HEAD(&resources); + pci_add_resource_offset(&resources, hose->io_space, + hose->io_space->start); + pci_add_resource_offset(&resources, hose->mem_space, + hose->mem_space->start); + + bus = pci_scan_root_bus(NULL, next_busno, alpha_mv.pci_ops, + hose, &resources); hose->bus = bus; hose->need_domain_info = need_domain_info; - next_busno = bus->subordinate + 1; + next_busno = bus->busn_res.end + 1; /* Don't allow 8-bit bus number overflow inside the hose - reserve some space for bridges. */ if (next_busno > 224) { @@ -465,8 +345,7 @@ common_init_pci(void) } } - if (pci_probe_only) - pcibios_claim_console_setup(); + pcibios_claim_console_setup(); pci_assign_unassigned_resources(); pci_fixup_irqs(alpha_mv.pci_swizzle, alpha_mv.pci_map_irq); @@ -542,30 +421,7 @@ sys_pciconfig_iobase(long which, unsigned long bus, unsigned long dfn) return -EOPNOTSUPP; } -/* Create an __iomem token from a PCI BAR. Copied from lib/iomap.c with - no changes, since we don't want the other things in that object file. */ - -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) -{ - unsigned long start = pci_resource_start(dev, bar); - unsigned long len = pci_resource_len(dev, bar); - unsigned long flags = pci_resource_flags(dev, bar); - - if (!len || !start) - return NULL; - if (maxlen && len > maxlen) - len = maxlen; - if (flags & IORESOURCE_IO) - return ioport_map(start, len); - if (flags & IORESOURCE_MEM) { - /* Not checking IORESOURCE_CACHEABLE because alpha does - not distinguish between ioremap and ioremap_nocache. */ - return ioremap(start, len); - } - return NULL; -} - -/* Destroy that token. Not copied from lib/iomap.c. */ +/* Destroy an __iomem token. Not copied from lib/iomap.c. */ void pci_iounmap(struct pci_dev *dev, void __iomem * addr) { @@ -573,7 +429,6 @@ void pci_iounmap(struct pci_dev *dev, void __iomem * addr) iounmap(addr); } -EXPORT_SYMBOL(pci_iomap); EXPORT_SYMBOL(pci_iounmap); /* FIXME: Some boxes have multiple ISA bridges! */ diff --git a/arch/alpha/kernel/pci_impl.h b/arch/alpha/kernel/pci_impl.h index f8b74995a00..2b0ac429f5e 100644 --- a/arch/alpha/kernel/pci_impl.h +++ b/arch/alpha/kernel/pci_impl.h @@ -106,16 +106,11 @@ struct pci_iommu_arena; * Where A = pin 1, B = pin 2 and so on and pin=0 = default = A. * Thus, each swizzle is ((pin-1) + (device#-4)) % 4 * - * The following code swizzles for exactly one bridge. The routine - * common_swizzle below handles multiple bridges. But there are a - * couple boards that do strange things, so we define this here. + * pci_swizzle_interrupt_pin() swizzles for exactly one bridge. The routine + * pci_common_swizzle() handles multiple bridges. But there are a + * couple boards that do strange things. */ -static inline u8 bridge_swizzle(u8 pin, u8 slot) -{ - return (((pin-1) + slot) % 4) + 1; -} - /* The following macro is used to implement the table-based irq mapping function for all single-bus Alphas. */ @@ -178,13 +173,10 @@ extern void pci_restore_srm_config(void); extern struct pci_controller *hose_head, **hose_tail; extern struct pci_controller *pci_isa_hose; -/* Indicate that we trust the console to configure things properly. */ -extern int pci_probe_only; - extern unsigned long alpha_agpgart_size; extern void common_init_pci(void); -extern u8 common_swizzle(struct pci_dev *, u8 *); +#define common_swizzle pci_common_swizzle extern struct pci_controller *alloc_pci_controller(void); extern struct resource *alloc_resource(void); @@ -203,7 +195,7 @@ extern unsigned long size_for_memory(unsigned long max); extern int iommu_reserve(struct pci_iommu_arena *, long, long); extern int iommu_release(struct pci_iommu_arena *, long, long); -extern int iommu_bind(struct pci_iommu_arena *, long, long, unsigned long *); +extern int iommu_bind(struct pci_iommu_arena *, long, long, struct page **); extern int iommu_unbind(struct pci_iommu_arena *, long, long); diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c index dd6e334ab9e..eddee772034 100644 --- a/arch/alpha/kernel/pci_iommu.c +++ b/arch/alpha/kernel/pci_iommu.c @@ -5,8 +5,9 @@ #include <linux/kernel.h> #include <linux/mm.h> #include <linux/pci.h> -#include <linux/slab.h> +#include <linux/gfp.h> #include <linux/bootmem.h> +#include <linux/export.h> #include <linux/scatterlist.h> #include <linux/log2.h> #include <linux/dma-mapping.h> @@ -41,13 +42,6 @@ mk_iommu_pte(unsigned long paddr) return (paddr >> (PAGE_SHIFT-1)) | 1; } -static inline long -calc_npages(long bytes) -{ - return (bytes + PAGE_SIZE - 1) >> PAGE_SHIFT; -} - - /* Return the minimum of MAX or the first power of two larger than main memory. */ @@ -79,25 +73,21 @@ iommu_arena_new_node(int nid, struct pci_controller *hose, dma_addr_t base, #ifdef CONFIG_DISCONTIGMEM - if (!NODE_DATA(nid) || - (NULL == (arena = alloc_bootmem_node(NODE_DATA(nid), - sizeof(*arena))))) { - printk("%s: couldn't allocate arena from node %d\n" - " falling back to system-wide allocation\n", - __FUNCTION__, nid); - arena = alloc_bootmem(sizeof(*arena)); - } - - if (!NODE_DATA(nid) || - (NULL == (arena->ptes = __alloc_bootmem_node(NODE_DATA(nid), - mem_size, - align, - 0)))) { - printk("%s: couldn't allocate arena ptes from node %d\n" - " falling back to system-wide allocation\n", - __FUNCTION__, nid); - arena->ptes = __alloc_bootmem(mem_size, align, 0); - } + arena = alloc_bootmem_node(NODE_DATA(nid), sizeof(*arena)); + if (!NODE_DATA(nid) || !arena) { + printk("%s: couldn't allocate arena from node %d\n" + " falling back to system-wide allocation\n", + __func__, nid); + arena = alloc_bootmem(sizeof(*arena)); + } + + arena->ptes = __alloc_bootmem_node(NODE_DATA(nid), mem_size, align, 0); + if (!NODE_DATA(nid) || !arena->ptes) { + printk("%s: couldn't allocate arena ptes from node %d\n" + " falling back to system-wide allocation\n", + __func__, nid); + arena->ptes = __alloc_bootmem(mem_size, align, 0); + } #else /* CONFIG_DISCONTIGMEM */ @@ -227,10 +217,30 @@ iommu_arena_free(struct pci_iommu_arena *arena, long ofs, long n) for (i = 0; i < n; ++i) p[i] = 0; } - -/* True if the machine supports DAC addressing, and DEV can - make use of it given MASK. */ -static int pci_dac_dma_supported(struct pci_dev *hwdev, u64 mask); + +/* + * True if the machine supports DAC addressing, and DEV can + * make use of it given MASK. + */ +static int pci_dac_dma_supported(struct pci_dev *dev, u64 mask) +{ + dma_addr_t dac_offset = alpha_mv.pci_dac_offset; + int ok = 1; + + /* If this is not set, the machine doesn't support DAC at all. */ + if (dac_offset == 0) + ok = 0; + + /* The device has to be able to address our DAC bit. */ + if ((dac_offset & dev->dma_mask) != dac_offset) + ok = 0; + + /* If both conditions above are met, we are fine. */ + DBGA("pci_dac_dma_supported %s from %pf\n", + ok ? "yes" : "no", __builtin_return_address(0)); + + return ok; +} /* Map a single buffer of the indicated size for PCI DMA in streaming mode. The 32-bit PCI bus mastering address to use is returned. @@ -258,7 +268,7 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size, && paddr + size <= __direct_map_size) { ret = paddr + __direct_map_base; - DBGA2("pci_map_single: [%p,%lx] -> direct %lx from %p\n", + DBGA2("pci_map_single: [%p,%zx] -> direct %llx from %pf\n", cpu_addr, size, ret, __builtin_return_address(0)); return ret; @@ -269,7 +279,7 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size, if (dac_allowed) { ret = paddr + alpha_mv.pci_dac_offset; - DBGA2("pci_map_single: [%p,%lx] -> DAC %lx from %p\n", + DBGA2("pci_map_single: [%p,%zx] -> DAC %llx from %pf\n", cpu_addr, size, ret, __builtin_return_address(0)); return ret; @@ -279,11 +289,7 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size, assume it doesn't support sg mapping, and, since we tried to use direct_map above, it now must be considered an error. */ if (! alpha_mv.mv_pci_tbi) { - static int been_here = 0; /* Only print the message once. */ - if (!been_here) { - printk(KERN_WARNING "pci_map_single: no HW sg\n"); - been_here = 1; - } + printk_once(KERN_WARNING "pci_map_single: no HW sg\n"); return 0; } @@ -291,7 +297,7 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size, if (!arena || arena->dma_base + arena->size - 1 > max_dma) arena = hose->sg_isa; - npages = calc_npages((paddr & ~PAGE_MASK) + size); + npages = iommu_num_pages(paddr, size, PAGE_SIZE); /* Force allocation to 64KB boundary for ISA bridges. */ if (pdev && pdev == isa_bridge) @@ -310,39 +316,50 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size, ret = arena->dma_base + dma_ofs * PAGE_SIZE; ret += (unsigned long)cpu_addr & ~PAGE_MASK; - DBGA2("pci_map_single: [%p,%lx] np %ld -> sg %lx from %p\n", + DBGA2("pci_map_single: [%p,%zx] np %ld -> sg %llx from %pf\n", cpu_addr, size, npages, ret, __builtin_return_address(0)); return ret; } -dma_addr_t -pci_map_single(struct pci_dev *pdev, void *cpu_addr, size_t size, int dir) +/* Helper for generic DMA-mapping functions. */ +static struct pci_dev *alpha_gendev_to_pci(struct device *dev) { - int dac_allowed; + if (dev && dev_is_pci(dev)) + return to_pci_dev(dev); - if (dir == PCI_DMA_NONE) - BUG(); + /* Assume that non-PCI devices asking for DMA are either ISA or EISA, + BUG() otherwise. */ + BUG_ON(!isa_bridge); - dac_allowed = pdev ? pci_dac_dma_supported(pdev, pdev->dma_mask) : 0; - return pci_map_single_1(pdev, cpu_addr, size, dac_allowed); + /* Assume non-busmaster ISA DMA when dma_mask is not set (the ISA + bridge is bus master then). */ + if (!dev || !dev->dma_mask || !*dev->dma_mask) + return isa_bridge; + + /* For EISA bus masters, return isa_bridge (it might have smaller + dma_mask due to wiring limitations). */ + if (*dev->dma_mask >= isa_bridge->dma_mask) + return isa_bridge; + + /* This assumes ISA bus master with dma_mask 0xffffff. */ + return NULL; } -EXPORT_SYMBOL(pci_map_single); -dma_addr_t -pci_map_page(struct pci_dev *pdev, struct page *page, unsigned long offset, - size_t size, int dir) +static dma_addr_t alpha_pci_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction dir, + struct dma_attrs *attrs) { + struct pci_dev *pdev = alpha_gendev_to_pci(dev); int dac_allowed; - if (dir == PCI_DMA_NONE) - BUG(); + BUG_ON(dir == PCI_DMA_NONE); dac_allowed = pdev ? pci_dac_dma_supported(pdev, pdev->dma_mask) : 0; return pci_map_single_1(pdev, (char *)page_address(page) + offset, size, dac_allowed); } -EXPORT_SYMBOL(pci_map_page); /* Unmap a single streaming mode DMA translation. The DMA_ADDR and SIZE must match what was provided for in a previous pci_map_single @@ -350,30 +367,30 @@ EXPORT_SYMBOL(pci_map_page); the cpu to the buffer are guaranteed to see whatever the device wrote there. */ -void -pci_unmap_single(struct pci_dev *pdev, dma_addr_t dma_addr, size_t size, - int direction) +static void alpha_pci_unmap_page(struct device *dev, dma_addr_t dma_addr, + size_t size, enum dma_data_direction dir, + struct dma_attrs *attrs) { unsigned long flags; + struct pci_dev *pdev = alpha_gendev_to_pci(dev); struct pci_controller *hose = pdev ? pdev->sysdata : pci_isa_hose; struct pci_iommu_arena *arena; long dma_ofs, npages; - if (direction == PCI_DMA_NONE) - BUG(); + BUG_ON(dir == PCI_DMA_NONE); if (dma_addr >= __direct_map_base && dma_addr < __direct_map_base + __direct_map_size) { /* Nothing to do. */ - DBGA2("pci_unmap_single: direct [%lx,%lx] from %p\n", + DBGA2("pci_unmap_single: direct [%llx,%zx] from %pf\n", dma_addr, size, __builtin_return_address(0)); return; } if (dma_addr > 0xffffffff) { - DBGA2("pci64_unmap_single: DAC [%lx,%lx] from %p\n", + DBGA2("pci64_unmap_single: DAC [%llx,%zx] from %pf\n", dma_addr, size, __builtin_return_address(0)); return; } @@ -384,14 +401,14 @@ pci_unmap_single(struct pci_dev *pdev, dma_addr_t dma_addr, size_t size, dma_ofs = (dma_addr - arena->dma_base) >> PAGE_SHIFT; if (dma_ofs * PAGE_SIZE >= arena->size) { - printk(KERN_ERR "Bogus pci_unmap_single: dma_addr %lx " - " base %lx size %x\n", dma_addr, arena->dma_base, - arena->size); + printk(KERN_ERR "Bogus pci_unmap_single: dma_addr %llx " + " base %llx size %x\n", + dma_addr, arena->dma_base, arena->size); return; BUG(); } - npages = calc_npages((dma_addr & ~PAGE_MASK) + size); + npages = iommu_num_pages(dma_addr, size, PAGE_SIZE); spin_lock_irqsave(&arena->lock, flags); @@ -405,28 +422,20 @@ pci_unmap_single(struct pci_dev *pdev, dma_addr_t dma_addr, size_t size, spin_unlock_irqrestore(&arena->lock, flags); - DBGA2("pci_unmap_single: sg [%lx,%lx] np %ld from %p\n", + DBGA2("pci_unmap_single: sg [%llx,%zx] np %ld from %pf\n", dma_addr, size, npages, __builtin_return_address(0)); } -EXPORT_SYMBOL(pci_unmap_single); - -void -pci_unmap_page(struct pci_dev *pdev, dma_addr_t dma_addr, - size_t size, int direction) -{ - pci_unmap_single(pdev, dma_addr, size, direction); -} -EXPORT_SYMBOL(pci_unmap_page); /* Allocate and map kernel buffer using consistent mode DMA for PCI device. Returns non-NULL cpu-view pointer to the buffer if successful and sets *DMA_ADDRP to the pci side dma address as well, else DMA_ADDRP is undefined. */ -void * -__pci_alloc_consistent(struct pci_dev *pdev, size_t size, - dma_addr_t *dma_addrp, gfp_t gfp) +static void *alpha_pci_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *dma_addrp, gfp_t gfp, + struct dma_attrs *attrs) { + struct pci_dev *pdev = alpha_gendev_to_pci(dev); void *cpu_addr; long order = get_order(size); @@ -436,7 +445,7 @@ try_again: cpu_addr = (void *)__get_free_pages(gfp, order); if (! cpu_addr) { printk(KERN_INFO "pci_alloc_consistent: " - "get_free_pages failed from %p\n", + "get_free_pages failed from %pf\n", __builtin_return_address(0)); /* ??? Really atomic allocation? Otherwise we could play with vmalloc and sg if we can't find contiguous memory. */ @@ -454,13 +463,12 @@ try_again: gfp |= GFP_DMA; goto try_again; } - - DBGA2("pci_alloc_consistent: %lx -> [%p,%x] from %p\n", + + DBGA2("pci_alloc_consistent: %zx -> [%p,%llx] from %pf\n", size, cpu_addr, *dma_addrp, __builtin_return_address(0)); return cpu_addr; } -EXPORT_SYMBOL(__pci_alloc_consistent); /* Free and unmap a consistent DMA buffer. CPU_ADDR and DMA_ADDR must be values that were returned from pci_alloc_consistent. SIZE must @@ -468,17 +476,17 @@ EXPORT_SYMBOL(__pci_alloc_consistent); References to the memory and mappings associated with CPU_ADDR or DMA_ADDR past this call are illegal. */ -void -pci_free_consistent(struct pci_dev *pdev, size_t size, void *cpu_addr, - dma_addr_t dma_addr) +static void alpha_pci_free_coherent(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_addr, + struct dma_attrs *attrs) { + struct pci_dev *pdev = alpha_gendev_to_pci(dev); pci_unmap_single(pdev, dma_addr, size, PCI_DMA_BIDIRECTIONAL); free_pages((unsigned long)cpu_addr, get_order(size)); - DBGA2("pci_free_consistent: [%x,%lx] from %p\n", + DBGA2("pci_free_consistent: [%llx,%zx] from %pf\n", dma_addr, size, __builtin_return_address(0)); } -EXPORT_SYMBOL(pci_free_consistent); /* Classify the elements of the scatterlist. Write dma_address of each element with: @@ -562,7 +570,7 @@ sg_fill(struct device *dev, struct scatterlist *leader, struct scatterlist *end, out->dma_address = paddr + __direct_map_base; out->dma_length = size; - DBGA(" sg_fill: [%p,%lx] -> direct %lx\n", + DBGA(" sg_fill: [%p,%lx] -> direct %llx\n", __va(paddr), size, out->dma_address); return 0; @@ -574,7 +582,7 @@ sg_fill(struct device *dev, struct scatterlist *leader, struct scatterlist *end, out->dma_address = paddr + alpha_mv.pci_dac_offset; out->dma_length = size; - DBGA(" sg_fill: [%p,%lx] -> DAC %lx\n", + DBGA(" sg_fill: [%p,%lx] -> DAC %llx\n", __va(paddr), size, out->dma_address); return 0; @@ -584,7 +592,7 @@ sg_fill(struct device *dev, struct scatterlist *leader, struct scatterlist *end, contiguous. */ paddr &= ~PAGE_MASK; - npages = calc_npages(paddr + size); + npages = iommu_num_pages(paddr, size, PAGE_SIZE); dma_ofs = iommu_arena_alloc(dev, arena, npages, 0); if (dma_ofs < 0) { /* If we attempted a direct map above but failed, die. */ @@ -600,7 +608,7 @@ sg_fill(struct device *dev, struct scatterlist *leader, struct scatterlist *end, out->dma_address = arena->dma_base + dma_ofs*PAGE_SIZE + paddr; out->dma_length = size; - DBGA(" sg_fill: [%p,%lx] -> sg %lx np %ld\n", + DBGA(" sg_fill: [%p,%lx] -> sg %llx np %ld\n", __va(paddr), size, out->dma_address, npages); /* All virtually contiguous. We need to find the length of each @@ -620,7 +628,7 @@ sg_fill(struct device *dev, struct scatterlist *leader, struct scatterlist *end, sg++; } - npages = calc_npages((paddr & ~PAGE_MASK) + size); + npages = iommu_num_pages(paddr, size, PAGE_SIZE); paddr &= PAGE_MASK; for (i = 0; i < npages; ++i, paddr += PAGE_SIZE) @@ -641,23 +649,20 @@ sg_fill(struct device *dev, struct scatterlist *leader, struct scatterlist *end, return 1; } -int -pci_map_sg(struct pci_dev *pdev, struct scatterlist *sg, int nents, - int direction) +static int alpha_pci_map_sg(struct device *dev, struct scatterlist *sg, + int nents, enum dma_data_direction dir, + struct dma_attrs *attrs) { + struct pci_dev *pdev = alpha_gendev_to_pci(dev); struct scatterlist *start, *end, *out; struct pci_controller *hose; struct pci_iommu_arena *arena; dma_addr_t max_dma; int dac_allowed; - struct device *dev; - if (direction == PCI_DMA_NONE) - BUG(); - - dac_allowed = pdev ? pci_dac_dma_supported(pdev, pdev->dma_mask) : 0; + BUG_ON(dir == PCI_DMA_NONE); - dev = pdev ? &pdev->dev : NULL; + dac_allowed = dev ? pci_dac_dma_supported(pdev, pdev->dma_mask) : 0; /* Fast path single entry scatterlists. */ if (nents == 1) { @@ -714,19 +719,19 @@ pci_map_sg(struct pci_dev *pdev, struct scatterlist *sg, int nents, /* Some allocation failed while mapping the scatterlist entries. Unmap them now. */ if (out > start) - pci_unmap_sg(pdev, start, out - start, direction); + pci_unmap_sg(pdev, start, out - start, dir); return 0; } -EXPORT_SYMBOL(pci_map_sg); /* Unmap a set of streaming mode DMA translations. Again, cpu read rules concerning calls here are the same as for pci_unmap_single() above. */ -void -pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sg, int nents, - int direction) +static void alpha_pci_unmap_sg(struct device *dev, struct scatterlist *sg, + int nents, enum dma_data_direction dir, + struct dma_attrs *attrs) { + struct pci_dev *pdev = alpha_gendev_to_pci(dev); unsigned long flags; struct pci_controller *hose; struct pci_iommu_arena *arena; @@ -734,8 +739,7 @@ pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sg, int nents, dma_addr_t max_dma; dma_addr_t fbeg, fend; - if (direction == PCI_DMA_NONE) - BUG(); + BUG_ON(dir == PCI_DMA_NONE); if (! alpha_mv.mv_pci_tbi) return; @@ -751,7 +755,7 @@ pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sg, int nents, spin_lock_irqsave(&arena->lock, flags); for (end = sg + nents; sg < end; ++sg) { - dma64_addr_t addr; + dma_addr_t addr; size_t size; long npages, ofs; dma_addr_t tend; @@ -763,7 +767,7 @@ pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sg, int nents, if (addr > 0xffffffff) { /* It's a DAC address -- nothing to do. */ - DBGA(" (%ld) DAC [%lx,%lx]\n", + DBGA(" (%ld) DAC [%llx,%zx]\n", sg - end + nents, addr, size); continue; } @@ -771,15 +775,15 @@ pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sg, int nents, if (addr >= __direct_map_base && addr < __direct_map_base + __direct_map_size) { /* Nothing to do. */ - DBGA(" (%ld) direct [%lx,%lx]\n", + DBGA(" (%ld) direct [%llx,%zx]\n", sg - end + nents, addr, size); continue; } - DBGA(" (%ld) sg [%lx,%lx]\n", + DBGA(" (%ld) sg [%llx,%zx]\n", sg - end + nents, addr, size); - npages = calc_npages((addr & ~PAGE_MASK) + size); + npages = iommu_num_pages(addr, size, PAGE_SIZE); ofs = (addr - arena->dma_base) >> PAGE_SHIFT; iommu_arena_free(arena, ofs, npages); @@ -798,15 +802,13 @@ pci_unmap_sg(struct pci_dev *pdev, struct scatterlist *sg, int nents, DBGA("pci_unmap_sg: %ld entries\n", nents - (end - sg)); } -EXPORT_SYMBOL(pci_unmap_sg); - /* Return whether the given PCI device DMA address mask can be supported properly. */ -int -pci_dma_supported(struct pci_dev *pdev, u64 mask) +static int alpha_pci_supported(struct device *dev, u64 mask) { + struct pci_dev *pdev = alpha_gendev_to_pci(dev); struct pci_controller *hose; struct pci_iommu_arena *arena; @@ -833,7 +835,6 @@ pci_dma_supported(struct pci_dev *pdev, u64 mask) return 0; } -EXPORT_SYMBOL(pci_dma_supported); /* @@ -891,7 +892,7 @@ iommu_release(struct pci_iommu_arena *arena, long pg_start, long pg_count) int iommu_bind(struct pci_iommu_arena *arena, long pg_start, long pg_count, - unsigned long *physaddrs) + struct page **pages) { unsigned long flags; unsigned long *ptes; @@ -911,7 +912,7 @@ iommu_bind(struct pci_iommu_arena *arena, long pg_start, long pg_count, } for(i = 0, j = pg_start; i < pg_count; i++, j++) - ptes[j] = mk_iommu_pte(physaddrs[i]); + ptes[j] = mk_iommu_pte(page_to_phys(pages[i])); spin_unlock_irqrestore(&arena->lock, flags); @@ -933,66 +934,32 @@ iommu_unbind(struct pci_iommu_arena *arena, long pg_start, long pg_count) return 0; } -/* True if the machine supports DAC addressing, and DEV can - make use of it given MASK. */ - -static int -pci_dac_dma_supported(struct pci_dev *dev, u64 mask) +static int alpha_pci_mapping_error(struct device *dev, dma_addr_t dma_addr) { - dma64_addr_t dac_offset = alpha_mv.pci_dac_offset; - int ok = 1; - - /* If this is not set, the machine doesn't support DAC at all. */ - if (dac_offset == 0) - ok = 0; - - /* The device has to be able to address our DAC bit. */ - if ((dac_offset & dev->dma_mask) != dac_offset) - ok = 0; - - /* If both conditions above are met, we are fine. */ - DBGA("pci_dac_dma_supported %s from %p\n", - ok ? "yes" : "no", __builtin_return_address(0)); - - return ok; + return dma_addr == 0; } -/* Helper for generic DMA-mapping functions. */ - -struct pci_dev * -alpha_gendev_to_pci(struct device *dev) -{ - if (dev && dev->bus == &pci_bus_type) - return to_pci_dev(dev); - - /* Assume that non-PCI devices asking for DMA are either ISA or EISA, - BUG() otherwise. */ - BUG_ON(!isa_bridge); - - /* Assume non-busmaster ISA DMA when dma_mask is not set (the ISA - bridge is bus master then). */ - if (!dev || !dev->dma_mask || !*dev->dma_mask) - return isa_bridge; - - /* For EISA bus masters, return isa_bridge (it might have smaller - dma_mask due to wiring limitations). */ - if (*dev->dma_mask >= isa_bridge->dma_mask) - return isa_bridge; - - /* This assumes ISA bus master with dma_mask 0xffffff. */ - return NULL; -} -EXPORT_SYMBOL(alpha_gendev_to_pci); - -int -dma_set_mask(struct device *dev, u64 mask) +static int alpha_pci_set_mask(struct device *dev, u64 mask) { if (!dev->dma_mask || !pci_dma_supported(alpha_gendev_to_pci(dev), mask)) return -EIO; *dev->dma_mask = mask; - return 0; } -EXPORT_SYMBOL(dma_set_mask); + +struct dma_map_ops alpha_pci_ops = { + .alloc = alpha_pci_alloc_coherent, + .free = alpha_pci_free_coherent, + .map_page = alpha_pci_map_page, + .unmap_page = alpha_pci_unmap_page, + .map_sg = alpha_pci_map_sg, + .unmap_sg = alpha_pci_unmap_sg, + .mapping_error = alpha_pci_mapping_error, + .dma_supported = alpha_pci_supported, + .set_dma_mask = alpha_pci_set_mask, +}; + +struct dma_map_ops *dma_ops = &alpha_pci_ops; +EXPORT_SYMBOL(dma_ops); diff --git a/arch/alpha/kernel/perf_event.c b/arch/alpha/kernel/perf_event.c new file mode 100644 index 00000000000..c52e7f0ee5f --- /dev/null +++ b/arch/alpha/kernel/perf_event.c @@ -0,0 +1,903 @@ +/* + * Hardware performance events for the Alpha. + * + * We implement HW counts on the EV67 and subsequent CPUs only. + * + * (C) 2010 Michael J. Cree + * + * Somewhat based on the Sparc code, and to a lesser extent the PowerPC and + * ARM code, which are copyright by their respective authors. + */ + +#include <linux/perf_event.h> +#include <linux/kprobes.h> +#include <linux/kernel.h> +#include <linux/kdebug.h> +#include <linux/mutex.h> +#include <linux/init.h> + +#include <asm/hwrpb.h> +#include <linux/atomic.h> +#include <asm/irq.h> +#include <asm/irq_regs.h> +#include <asm/pal.h> +#include <asm/wrperfmon.h> +#include <asm/hw_irq.h> + + +/* The maximum number of PMCs on any Alpha CPU whatsoever. */ +#define MAX_HWEVENTS 3 +#define PMC_NO_INDEX -1 + +/* For tracking PMCs and the hw events they monitor on each CPU. */ +struct cpu_hw_events { + int enabled; + /* Number of events scheduled; also number entries valid in arrays below. */ + int n_events; + /* Number events added since last hw_perf_disable(). */ + int n_added; + /* Events currently scheduled. */ + struct perf_event *event[MAX_HWEVENTS]; + /* Event type of each scheduled event. */ + unsigned long evtype[MAX_HWEVENTS]; + /* Current index of each scheduled event; if not yet determined + * contains PMC_NO_INDEX. + */ + int current_idx[MAX_HWEVENTS]; + /* The active PMCs' config for easy use with wrperfmon(). */ + unsigned long config; + /* The active counters' indices for easy use with wrperfmon(). */ + unsigned long idx_mask; +}; +DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events); + + + +/* + * A structure to hold the description of the PMCs available on a particular + * type of Alpha CPU. + */ +struct alpha_pmu_t { + /* Mapping of the perf system hw event types to indigenous event types */ + const int *event_map; + /* The number of entries in the event_map */ + int max_events; + /* The number of PMCs on this Alpha */ + int num_pmcs; + /* + * All PMC counters reside in the IBOX register PCTR. This is the + * LSB of the counter. + */ + int pmc_count_shift[MAX_HWEVENTS]; + /* + * The mask that isolates the PMC bits when the LSB of the counter + * is shifted to bit 0. + */ + unsigned long pmc_count_mask[MAX_HWEVENTS]; + /* The maximum period the PMC can count. */ + unsigned long pmc_max_period[MAX_HWEVENTS]; + /* + * The maximum value that may be written to the counter due to + * hardware restrictions is pmc_max_period - pmc_left. + */ + long pmc_left[3]; + /* Subroutine for allocation of PMCs. Enforces constraints. */ + int (*check_constraints)(struct perf_event **, unsigned long *, int); + /* Subroutine for checking validity of a raw event for this PMU. */ + int (*raw_event_valid)(u64 config); +}; + +/* + * The Alpha CPU PMU description currently in operation. This is set during + * the boot process to the specific CPU of the machine. + */ +static const struct alpha_pmu_t *alpha_pmu; + + +#define HW_OP_UNSUPPORTED -1 + +/* + * The hardware description of the EV67, EV68, EV69, EV7 and EV79 PMUs + * follow. Since they are identical we refer to them collectively as the + * EV67 henceforth. + */ + +/* + * EV67 PMC event types + * + * There is no one-to-one mapping of the possible hw event types to the + * actual codes that are used to program the PMCs hence we introduce our + * own hw event type identifiers. + */ +enum ev67_pmc_event_type { + EV67_CYCLES = 1, + EV67_INSTRUCTIONS, + EV67_BCACHEMISS, + EV67_MBOXREPLAY, + EV67_LAST_ET +}; +#define EV67_NUM_EVENT_TYPES (EV67_LAST_ET-EV67_CYCLES) + + +/* Mapping of the hw event types to the perf tool interface */ +static const int ev67_perfmon_event_map[] = { + [PERF_COUNT_HW_CPU_CYCLES] = EV67_CYCLES, + [PERF_COUNT_HW_INSTRUCTIONS] = EV67_INSTRUCTIONS, + [PERF_COUNT_HW_CACHE_REFERENCES] = HW_OP_UNSUPPORTED, + [PERF_COUNT_HW_CACHE_MISSES] = EV67_BCACHEMISS, +}; + +struct ev67_mapping_t { + int config; + int idx; +}; + +/* + * The mapping used for one event only - these must be in same order as enum + * ev67_pmc_event_type definition. + */ +static const struct ev67_mapping_t ev67_mapping[] = { + {EV67_PCTR_INSTR_CYCLES, 1}, /* EV67_CYCLES, */ + {EV67_PCTR_INSTR_CYCLES, 0}, /* EV67_INSTRUCTIONS */ + {EV67_PCTR_INSTR_BCACHEMISS, 1}, /* EV67_BCACHEMISS */ + {EV67_PCTR_CYCLES_MBOX, 1} /* EV67_MBOXREPLAY */ +}; + + +/* + * Check that a group of events can be simultaneously scheduled on to the + * EV67 PMU. Also allocate counter indices and config. + */ +static int ev67_check_constraints(struct perf_event **event, + unsigned long *evtype, int n_ev) +{ + int idx0; + unsigned long config; + + idx0 = ev67_mapping[evtype[0]-1].idx; + config = ev67_mapping[evtype[0]-1].config; + if (n_ev == 1) + goto success; + + BUG_ON(n_ev != 2); + + if (evtype[0] == EV67_MBOXREPLAY || evtype[1] == EV67_MBOXREPLAY) { + /* MBOX replay traps must be on PMC 1 */ + idx0 = (evtype[0] == EV67_MBOXREPLAY) ? 1 : 0; + /* Only cycles can accompany MBOX replay traps */ + if (evtype[idx0] == EV67_CYCLES) { + config = EV67_PCTR_CYCLES_MBOX; + goto success; + } + } + + if (evtype[0] == EV67_BCACHEMISS || evtype[1] == EV67_BCACHEMISS) { + /* Bcache misses must be on PMC 1 */ + idx0 = (evtype[0] == EV67_BCACHEMISS) ? 1 : 0; + /* Only instructions can accompany Bcache misses */ + if (evtype[idx0] == EV67_INSTRUCTIONS) { + config = EV67_PCTR_INSTR_BCACHEMISS; + goto success; + } + } + + if (evtype[0] == EV67_INSTRUCTIONS || evtype[1] == EV67_INSTRUCTIONS) { + /* Instructions must be on PMC 0 */ + idx0 = (evtype[0] == EV67_INSTRUCTIONS) ? 0 : 1; + /* By this point only cycles can accompany instructions */ + if (evtype[idx0^1] == EV67_CYCLES) { + config = EV67_PCTR_INSTR_CYCLES; + goto success; + } + } + + /* Otherwise, darn it, there is a conflict. */ + return -1; + +success: + event[0]->hw.idx = idx0; + event[0]->hw.config_base = config; + if (n_ev == 2) { + event[1]->hw.idx = idx0 ^ 1; + event[1]->hw.config_base = config; + } + return 0; +} + + +static int ev67_raw_event_valid(u64 config) +{ + return config >= EV67_CYCLES && config < EV67_LAST_ET; +}; + + +static const struct alpha_pmu_t ev67_pmu = { + .event_map = ev67_perfmon_event_map, + .max_events = ARRAY_SIZE(ev67_perfmon_event_map), + .num_pmcs = 2, + .pmc_count_shift = {EV67_PCTR_0_COUNT_SHIFT, EV67_PCTR_1_COUNT_SHIFT, 0}, + .pmc_count_mask = {EV67_PCTR_0_COUNT_MASK, EV67_PCTR_1_COUNT_MASK, 0}, + .pmc_max_period = {(1UL<<20) - 1, (1UL<<20) - 1, 0}, + .pmc_left = {16, 4, 0}, + .check_constraints = ev67_check_constraints, + .raw_event_valid = ev67_raw_event_valid, +}; + + + +/* + * Helper routines to ensure that we read/write only the correct PMC bits + * when calling the wrperfmon PALcall. + */ +static inline void alpha_write_pmc(int idx, unsigned long val) +{ + val &= alpha_pmu->pmc_count_mask[idx]; + val <<= alpha_pmu->pmc_count_shift[idx]; + val |= (1<<idx); + wrperfmon(PERFMON_CMD_WRITE, val); +} + +static inline unsigned long alpha_read_pmc(int idx) +{ + unsigned long val; + + val = wrperfmon(PERFMON_CMD_READ, 0); + val >>= alpha_pmu->pmc_count_shift[idx]; + val &= alpha_pmu->pmc_count_mask[idx]; + return val; +} + +/* Set a new period to sample over */ +static int alpha_perf_event_set_period(struct perf_event *event, + struct hw_perf_event *hwc, int idx) +{ + long left = local64_read(&hwc->period_left); + long period = hwc->sample_period; + int ret = 0; + + if (unlikely(left <= -period)) { + left = period; + local64_set(&hwc->period_left, left); + hwc->last_period = period; + ret = 1; + } + + if (unlikely(left <= 0)) { + left += period; + local64_set(&hwc->period_left, left); + hwc->last_period = period; + ret = 1; + } + + /* + * Hardware restrictions require that the counters must not be + * written with values that are too close to the maximum period. + */ + if (unlikely(left < alpha_pmu->pmc_left[idx])) + left = alpha_pmu->pmc_left[idx]; + + if (left > (long)alpha_pmu->pmc_max_period[idx]) + left = alpha_pmu->pmc_max_period[idx]; + + local64_set(&hwc->prev_count, (unsigned long)(-left)); + + alpha_write_pmc(idx, (unsigned long)(-left)); + + perf_event_update_userpage(event); + + return ret; +} + + +/* + * Calculates the count (the 'delta') since the last time the PMC was read. + * + * As the PMCs' full period can easily be exceeded within the perf system + * sampling period we cannot use any high order bits as a guard bit in the + * PMCs to detect overflow as is done by other architectures. The code here + * calculates the delta on the basis that there is no overflow when ovf is + * zero. The value passed via ovf by the interrupt handler corrects for + * overflow. + * + * This can be racey on rare occasions -- a call to this routine can occur + * with an overflowed counter just before the PMI service routine is called. + * The check for delta negative hopefully always rectifies this situation. + */ +static unsigned long alpha_perf_event_update(struct perf_event *event, + struct hw_perf_event *hwc, int idx, long ovf) +{ + long prev_raw_count, new_raw_count; + long delta; + +again: + prev_raw_count = local64_read(&hwc->prev_count); + new_raw_count = alpha_read_pmc(idx); + + if (local64_cmpxchg(&hwc->prev_count, prev_raw_count, + new_raw_count) != prev_raw_count) + goto again; + + delta = (new_raw_count - (prev_raw_count & alpha_pmu->pmc_count_mask[idx])) + ovf; + + /* It is possible on very rare occasions that the PMC has overflowed + * but the interrupt is yet to come. Detect and fix this situation. + */ + if (unlikely(delta < 0)) { + delta += alpha_pmu->pmc_max_period[idx] + 1; + } + + local64_add(delta, &event->count); + local64_sub(delta, &hwc->period_left); + + return new_raw_count; +} + + +/* + * Collect all HW events into the array event[]. + */ +static int collect_events(struct perf_event *group, int max_count, + struct perf_event *event[], unsigned long *evtype, + int *current_idx) +{ + struct perf_event *pe; + int n = 0; + + if (!is_software_event(group)) { + if (n >= max_count) + return -1; + event[n] = group; + evtype[n] = group->hw.event_base; + current_idx[n++] = PMC_NO_INDEX; + } + list_for_each_entry(pe, &group->sibling_list, group_entry) { + if (!is_software_event(pe) && pe->state != PERF_EVENT_STATE_OFF) { + if (n >= max_count) + return -1; + event[n] = pe; + evtype[n] = pe->hw.event_base; + current_idx[n++] = PMC_NO_INDEX; + } + } + return n; +} + + + +/* + * Check that a group of events can be simultaneously scheduled on to the PMU. + */ +static int alpha_check_constraints(struct perf_event **events, + unsigned long *evtypes, int n_ev) +{ + + /* No HW events is possible from hw_perf_group_sched_in(). */ + if (n_ev == 0) + return 0; + + if (n_ev > alpha_pmu->num_pmcs) + return -1; + + return alpha_pmu->check_constraints(events, evtypes, n_ev); +} + + +/* + * If new events have been scheduled then update cpuc with the new + * configuration. This may involve shifting cycle counts from one PMC to + * another. + */ +static void maybe_change_configuration(struct cpu_hw_events *cpuc) +{ + int j; + + if (cpuc->n_added == 0) + return; + + /* Find counters that are moving to another PMC and update */ + for (j = 0; j < cpuc->n_events; j++) { + struct perf_event *pe = cpuc->event[j]; + + if (cpuc->current_idx[j] != PMC_NO_INDEX && + cpuc->current_idx[j] != pe->hw.idx) { + alpha_perf_event_update(pe, &pe->hw, cpuc->current_idx[j], 0); + cpuc->current_idx[j] = PMC_NO_INDEX; + } + } + + /* Assign to counters all unassigned events. */ + cpuc->idx_mask = 0; + for (j = 0; j < cpuc->n_events; j++) { + struct perf_event *pe = cpuc->event[j]; + struct hw_perf_event *hwc = &pe->hw; + int idx = hwc->idx; + + if (cpuc->current_idx[j] == PMC_NO_INDEX) { + alpha_perf_event_set_period(pe, hwc, idx); + cpuc->current_idx[j] = idx; + } + + if (!(hwc->state & PERF_HES_STOPPED)) + cpuc->idx_mask |= (1<<cpuc->current_idx[j]); + } + cpuc->config = cpuc->event[0]->hw.config_base; +} + + + +/* Schedule perf HW event on to PMU. + * - this function is called from outside this module via the pmu struct + * returned from perf event initialisation. + */ +static int alpha_pmu_add(struct perf_event *event, int flags) +{ + struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + struct hw_perf_event *hwc = &event->hw; + int n0; + int ret; + unsigned long irq_flags; + + /* + * The Sparc code has the IRQ disable first followed by the perf + * disable, however this can lead to an overflowed counter with the + * PMI disabled on rare occasions. The alpha_perf_event_update() + * routine should detect this situation by noting a negative delta, + * nevertheless we disable the PMCs first to enable a potential + * final PMI to occur before we disable interrupts. + */ + perf_pmu_disable(event->pmu); + local_irq_save(irq_flags); + + /* Default to error to be returned */ + ret = -EAGAIN; + + /* Insert event on to PMU and if successful modify ret to valid return */ + n0 = cpuc->n_events; + if (n0 < alpha_pmu->num_pmcs) { + cpuc->event[n0] = event; + cpuc->evtype[n0] = event->hw.event_base; + cpuc->current_idx[n0] = PMC_NO_INDEX; + + if (!alpha_check_constraints(cpuc->event, cpuc->evtype, n0+1)) { + cpuc->n_events++; + cpuc->n_added++; + ret = 0; + } + } + + hwc->state = PERF_HES_UPTODATE; + if (!(flags & PERF_EF_START)) + hwc->state |= PERF_HES_STOPPED; + + local_irq_restore(irq_flags); + perf_pmu_enable(event->pmu); + + return ret; +} + + + +/* Disable performance monitoring unit + * - this function is called from outside this module via the pmu struct + * returned from perf event initialisation. + */ +static void alpha_pmu_del(struct perf_event *event, int flags) +{ + struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + struct hw_perf_event *hwc = &event->hw; + unsigned long irq_flags; + int j; + + perf_pmu_disable(event->pmu); + local_irq_save(irq_flags); + + for (j = 0; j < cpuc->n_events; j++) { + if (event == cpuc->event[j]) { + int idx = cpuc->current_idx[j]; + + /* Shift remaining entries down into the existing + * slot. + */ + while (++j < cpuc->n_events) { + cpuc->event[j - 1] = cpuc->event[j]; + cpuc->evtype[j - 1] = cpuc->evtype[j]; + cpuc->current_idx[j - 1] = + cpuc->current_idx[j]; + } + + /* Absorb the final count and turn off the event. */ + alpha_perf_event_update(event, hwc, idx, 0); + perf_event_update_userpage(event); + + cpuc->idx_mask &= ~(1UL<<idx); + cpuc->n_events--; + break; + } + } + + local_irq_restore(irq_flags); + perf_pmu_enable(event->pmu); +} + + +static void alpha_pmu_read(struct perf_event *event) +{ + struct hw_perf_event *hwc = &event->hw; + + alpha_perf_event_update(event, hwc, hwc->idx, 0); +} + + +static void alpha_pmu_stop(struct perf_event *event, int flags) +{ + struct hw_perf_event *hwc = &event->hw; + struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + + if (!(hwc->state & PERF_HES_STOPPED)) { + cpuc->idx_mask &= ~(1UL<<hwc->idx); + hwc->state |= PERF_HES_STOPPED; + } + + if ((flags & PERF_EF_UPDATE) && !(hwc->state & PERF_HES_UPTODATE)) { + alpha_perf_event_update(event, hwc, hwc->idx, 0); + hwc->state |= PERF_HES_UPTODATE; + } + + if (cpuc->enabled) + wrperfmon(PERFMON_CMD_DISABLE, (1UL<<hwc->idx)); +} + + +static void alpha_pmu_start(struct perf_event *event, int flags) +{ + struct hw_perf_event *hwc = &event->hw; + struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + + if (WARN_ON_ONCE(!(hwc->state & PERF_HES_STOPPED))) + return; + + if (flags & PERF_EF_RELOAD) { + WARN_ON_ONCE(!(hwc->state & PERF_HES_UPTODATE)); + alpha_perf_event_set_period(event, hwc, hwc->idx); + } + + hwc->state = 0; + + cpuc->idx_mask |= 1UL<<hwc->idx; + if (cpuc->enabled) + wrperfmon(PERFMON_CMD_ENABLE, (1UL<<hwc->idx)); +} + + +/* + * Check that CPU performance counters are supported. + * - currently support EV67 and later CPUs. + * - actually some later revisions of the EV6 have the same PMC model as the + * EV67 but we don't do suffiently deep CPU detection to detect them. + * Bad luck to the very few people who might have one, I guess. + */ +static int supported_cpu(void) +{ + struct percpu_struct *cpu; + unsigned long cputype; + + /* Get cpu type from HW */ + cpu = (struct percpu_struct *)((char *)hwrpb + hwrpb->processor_offset); + cputype = cpu->type & 0xffffffff; + /* Include all of EV67, EV68, EV7, EV79 and EV69 as supported. */ + return (cputype >= EV67_CPU) && (cputype <= EV69_CPU); +} + + + +static void hw_perf_event_destroy(struct perf_event *event) +{ + /* Nothing to be done! */ + return; +} + + + +static int __hw_perf_event_init(struct perf_event *event) +{ + struct perf_event_attr *attr = &event->attr; + struct hw_perf_event *hwc = &event->hw; + struct perf_event *evts[MAX_HWEVENTS]; + unsigned long evtypes[MAX_HWEVENTS]; + int idx_rubbish_bin[MAX_HWEVENTS]; + int ev; + int n; + + /* We only support a limited range of HARDWARE event types with one + * only programmable via a RAW event type. + */ + if (attr->type == PERF_TYPE_HARDWARE) { + if (attr->config >= alpha_pmu->max_events) + return -EINVAL; + ev = alpha_pmu->event_map[attr->config]; + } else if (attr->type == PERF_TYPE_HW_CACHE) { + return -EOPNOTSUPP; + } else if (attr->type == PERF_TYPE_RAW) { + if (!alpha_pmu->raw_event_valid(attr->config)) + return -EINVAL; + ev = attr->config; + } else { + return -EOPNOTSUPP; + } + + if (ev < 0) { + return ev; + } + + /* The EV67 does not support mode exclusion */ + if (attr->exclude_kernel || attr->exclude_user + || attr->exclude_hv || attr->exclude_idle) { + return -EPERM; + } + + /* + * We place the event type in event_base here and leave calculation + * of the codes to programme the PMU for alpha_pmu_enable() because + * it is only then we will know what HW events are actually + * scheduled on to the PMU. At that point the code to programme the + * PMU is put into config_base and the PMC to use is placed into + * idx. We initialise idx (below) to PMC_NO_INDEX to indicate that + * it is yet to be determined. + */ + hwc->event_base = ev; + + /* Collect events in a group together suitable for calling + * alpha_check_constraints() to verify that the group as a whole can + * be scheduled on to the PMU. + */ + n = 0; + if (event->group_leader != event) { + n = collect_events(event->group_leader, + alpha_pmu->num_pmcs - 1, + evts, evtypes, idx_rubbish_bin); + if (n < 0) + return -EINVAL; + } + evtypes[n] = hwc->event_base; + evts[n] = event; + + if (alpha_check_constraints(evts, evtypes, n + 1)) + return -EINVAL; + + /* Indicate that PMU config and idx are yet to be determined. */ + hwc->config_base = 0; + hwc->idx = PMC_NO_INDEX; + + event->destroy = hw_perf_event_destroy; + + /* + * Most architectures reserve the PMU for their use at this point. + * As there is no existing mechanism to arbitrate usage and there + * appears to be no other user of the Alpha PMU we just assume + * that we can just use it, hence a NO-OP here. + * + * Maybe an alpha_reserve_pmu() routine should be implemented but is + * anything else ever going to use it? + */ + + if (!hwc->sample_period) { + hwc->sample_period = alpha_pmu->pmc_max_period[0]; + hwc->last_period = hwc->sample_period; + local64_set(&hwc->period_left, hwc->sample_period); + } + + return 0; +} + +/* + * Main entry point to initialise a HW performance event. + */ +static int alpha_pmu_event_init(struct perf_event *event) +{ + int err; + + /* does not support taken branch sampling */ + if (has_branch_stack(event)) + return -EOPNOTSUPP; + + switch (event->attr.type) { + case PERF_TYPE_RAW: + case PERF_TYPE_HARDWARE: + case PERF_TYPE_HW_CACHE: + break; + + default: + return -ENOENT; + } + + if (!alpha_pmu) + return -ENODEV; + + /* Do the real initialisation work. */ + err = __hw_perf_event_init(event); + + return err; +} + +/* + * Main entry point - enable HW performance counters. + */ +static void alpha_pmu_enable(struct pmu *pmu) +{ + struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + + if (cpuc->enabled) + return; + + cpuc->enabled = 1; + barrier(); + + if (cpuc->n_events > 0) { + /* Update cpuc with information from any new scheduled events. */ + maybe_change_configuration(cpuc); + + /* Start counting the desired events. */ + wrperfmon(PERFMON_CMD_LOGGING_OPTIONS, EV67_PCTR_MODE_AGGREGATE); + wrperfmon(PERFMON_CMD_DESIRED_EVENTS, cpuc->config); + wrperfmon(PERFMON_CMD_ENABLE, cpuc->idx_mask); + } +} + + +/* + * Main entry point - disable HW performance counters. + */ + +static void alpha_pmu_disable(struct pmu *pmu) +{ + struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events); + + if (!cpuc->enabled) + return; + + cpuc->enabled = 0; + cpuc->n_added = 0; + + wrperfmon(PERFMON_CMD_DISABLE, cpuc->idx_mask); +} + +static struct pmu pmu = { + .pmu_enable = alpha_pmu_enable, + .pmu_disable = alpha_pmu_disable, + .event_init = alpha_pmu_event_init, + .add = alpha_pmu_add, + .del = alpha_pmu_del, + .start = alpha_pmu_start, + .stop = alpha_pmu_stop, + .read = alpha_pmu_read, +}; + + +/* + * Main entry point - don't know when this is called but it + * obviously dumps debug info. + */ +void perf_event_print_debug(void) +{ + unsigned long flags; + unsigned long pcr; + int pcr0, pcr1; + int cpu; + + if (!supported_cpu()) + return; + + local_irq_save(flags); + + cpu = smp_processor_id(); + + pcr = wrperfmon(PERFMON_CMD_READ, 0); + pcr0 = (pcr >> alpha_pmu->pmc_count_shift[0]) & alpha_pmu->pmc_count_mask[0]; + pcr1 = (pcr >> alpha_pmu->pmc_count_shift[1]) & alpha_pmu->pmc_count_mask[1]; + + pr_info("CPU#%d: PCTR0[%06x] PCTR1[%06x]\n", cpu, pcr0, pcr1); + + local_irq_restore(flags); +} + + +/* + * Performance Monitoring Interrupt Service Routine called when a PMC + * overflows. The PMC that overflowed is passed in la_ptr. + */ +static void alpha_perf_event_irq_handler(unsigned long la_ptr, + struct pt_regs *regs) +{ + struct cpu_hw_events *cpuc; + struct perf_sample_data data; + struct perf_event *event; + struct hw_perf_event *hwc; + int idx, j; + + __get_cpu_var(irq_pmi_count)++; + cpuc = &__get_cpu_var(cpu_hw_events); + + /* Completely counting through the PMC's period to trigger a new PMC + * overflow interrupt while in this interrupt routine is utterly + * disastrous! The EV6 and EV67 counters are sufficiently large to + * prevent this but to be really sure disable the PMCs. + */ + wrperfmon(PERFMON_CMD_DISABLE, cpuc->idx_mask); + + /* la_ptr is the counter that overflowed. */ + if (unlikely(la_ptr >= alpha_pmu->num_pmcs)) { + /* This should never occur! */ + irq_err_count++; + pr_warning("PMI: silly index %ld\n", la_ptr); + wrperfmon(PERFMON_CMD_ENABLE, cpuc->idx_mask); + return; + } + + idx = la_ptr; + + for (j = 0; j < cpuc->n_events; j++) { + if (cpuc->current_idx[j] == idx) + break; + } + + if (unlikely(j == cpuc->n_events)) { + /* This can occur if the event is disabled right on a PMC overflow. */ + wrperfmon(PERFMON_CMD_ENABLE, cpuc->idx_mask); + return; + } + + event = cpuc->event[j]; + + if (unlikely(!event)) { + /* This should never occur! */ + irq_err_count++; + pr_warning("PMI: No event at index %d!\n", idx); + wrperfmon(PERFMON_CMD_ENABLE, cpuc->idx_mask); + return; + } + + hwc = &event->hw; + alpha_perf_event_update(event, hwc, idx, alpha_pmu->pmc_max_period[idx]+1); + perf_sample_data_init(&data, 0, hwc->last_period); + + if (alpha_perf_event_set_period(event, hwc, idx)) { + if (perf_event_overflow(event, &data, regs)) { + /* Interrupts coming too quickly; "throttle" the + * counter, i.e., disable it for a little while. + */ + alpha_pmu_stop(event, 0); + } + } + wrperfmon(PERFMON_CMD_ENABLE, cpuc->idx_mask); + + return; +} + + + +/* + * Init call to initialise performance events at kernel startup. + */ +int __init init_hw_perf_events(void) +{ + pr_info("Performance events: "); + + if (!supported_cpu()) { + pr_cont("No support for your CPU.\n"); + return 0; + } + + pr_cont("Supported CPU type!\n"); + + /* Override performance counter IRQ vector */ + + perf_irq = alpha_perf_event_irq_handler; + + /* And set up PMU specification */ + alpha_pmu = &ev67_pmu; + + perf_pmu_register(&pmu, "cpu", PERF_TYPE_RAW); + + return 0; +} +early_initcall(init_hw_perf_events); diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c index 96ed82fd9ee..1941a07b581 100644 --- a/arch/alpha/kernel/process.c +++ b/arch/alpha/kernel/process.c @@ -17,9 +17,7 @@ #include <linux/stddef.h> #include <linux/unistd.h> #include <linux/ptrace.h> -#include <linux/slab.h> #include <linux/user.h> -#include <linux/utsname.h> #include <linux/time.h> #include <linux/major.h> #include <linux/stat.h> @@ -29,10 +27,11 @@ #include <linux/reboot.h> #include <linux/tty.h> #include <linux/console.h> +#include <linux/slab.h> +#include <linux/rcupdate.h> #include <asm/reg.h> #include <asm/uaccess.h> -#include <asm/system.h> #include <asm/io.h> #include <asm/pgtable.h> #include <asm/hwrpb.h> @@ -47,21 +46,22 @@ void (*pm_power_off)(void) = machine_power_off; EXPORT_SYMBOL(pm_power_off); -void -cpu_idle(void) +#ifdef CONFIG_ALPHA_WTINT +/* + * Sleep the CPU. + * EV6, LCA45 and QEMU know how to power down, skipping N timer interrupts. + */ +void arch_cpu_idle(void) { - set_thread_flag(TIF_POLLING_NRFLAG); - - while (1) { - /* FIXME -- EV6 and LCA45 know how to power down - the CPU. */ - - while (!need_resched()) - cpu_relax(); - schedule(); - } + wtint(0); + local_irq_enable(); } +void arch_cpu_idle_dead(void) +{ + wtint(INT_MAX); +} +#endif /* ALPHA_WTINT */ struct halt_info { int mode; @@ -93,7 +93,8 @@ common_shutdown_1(void *generic_ptr) if (cpuid != boot_cpuid) { flags |= 0x00040000UL; /* "remain halted" */ *pflags = flags; - cpu_clear(cpuid, cpu_present_map); + set_cpu_present(cpuid, false); + set_cpu_possible(cpuid, false); halt(); } #endif @@ -119,8 +120,9 @@ common_shutdown_1(void *generic_ptr) #ifdef CONFIG_SMP /* Wait for the secondaries to halt. */ - cpu_clear(boot_cpuid, cpu_present_map); - while (cpus_weight(cpu_present_map)) + set_cpu_present(boot_cpuid, false); + set_cpu_possible(boot_cpuid, false); + while (cpumask_weight(cpu_present_mask)) barrier(); #endif @@ -132,7 +134,9 @@ common_shutdown_1(void *generic_ptr) if (in_interrupt()) irq_exit(); /* This has the effect of resetting the VGA video origin. */ - take_over_console(&dummy_con, 0, MAX_NR_CONSOLES-1, 1); + console_lock(); + do_take_over_console(&dummy_con, 0, MAX_NR_CONSOLES-1, 1); + console_unlock(); #endif pci_restore_srm_config(); set_hae(srm_hae); @@ -160,7 +164,7 @@ common_shutdown(int mode, char *restart_cmd) struct halt_info args; args.mode = mode; args.restart_cmd = restart_cmd; - on_each_cpu(common_shutdown_1, &args, 1, 0); + on_each_cpu(common_shutdown_1, &args, 0); } void @@ -190,6 +194,7 @@ machine_power_off(void) void show_regs(struct pt_regs *regs) { + show_regs_print_info(KERN_DEFAULT); dik_show_regs(regs, NULL); } @@ -199,7 +204,6 @@ show_regs(struct pt_regs *regs) void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long sp) { - set_fs(USER_DS); regs->pc = pc; regs->ps = 8; wrusp(sp); @@ -232,87 +236,53 @@ release_thread(struct task_struct *dead_task) } /* - * "alpha_clone()".. By the time we get here, the - * non-volatile registers have also been saved on the - * stack. We do some ugly pointer stuff here.. (see - * also copy_thread) - * - * Notice that "fork()" is implemented in terms of clone, - * with parameters (SIGCHLD, 0). - */ -int -alpha_clone(unsigned long clone_flags, unsigned long usp, - int __user *parent_tid, int __user *child_tid, - unsigned long tls_value, struct pt_regs *regs) -{ - if (!usp) - usp = rdusp(); - - return do_fork(clone_flags, usp, regs, 0, parent_tid, child_tid); -} - -int -alpha_vfork(struct pt_regs *regs) -{ - return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, rdusp(), - regs, 0, NULL, NULL); -} - -/* * Copy an alpha thread.. - * - * Note the "stack_offset" stuff: when returning to kernel mode, we need - * to have some extra stack-space for the kernel stack that still exists - * after the "ret_from_fork". When returning to user mode, we only want - * the space needed by the syscall stack frame (ie "struct pt_regs"). - * Use the passed "regs" pointer to determine how much space we need - * for a kernel fork(). */ int -copy_thread(int nr, unsigned long clone_flags, unsigned long usp, - unsigned long unused, - struct task_struct * p, struct pt_regs * regs) +copy_thread(unsigned long clone_flags, unsigned long usp, + unsigned long arg, + struct task_struct *p) { extern void ret_from_fork(void); + extern void ret_from_kernel_thread(void); struct thread_info *childti = task_thread_info(p); - struct pt_regs * childregs; - struct switch_stack * childstack, *stack; - unsigned long stack_offset, settls; - - stack_offset = PAGE_SIZE - sizeof(struct pt_regs); - if (!(regs->ps & 8)) - stack_offset = (PAGE_SIZE-1) & (unsigned long) regs; - childregs = (struct pt_regs *) - (stack_offset + PAGE_SIZE + task_stack_page(p)); - - *childregs = *regs; - settls = regs->r20; - childregs->r0 = 0; - childregs->r19 = 0; - childregs->r20 = 1; /* OSF/1 has some strange fork() semantics. */ - regs->r20 = 0; - stack = ((struct switch_stack *) regs) - 1; + struct pt_regs *childregs = task_pt_regs(p); + struct pt_regs *regs = current_pt_regs(); + struct switch_stack *childstack, *stack; + childstack = ((struct switch_stack *) childregs) - 1; - *childstack = *stack; - childstack->r26 = (unsigned long) ret_from_fork; - childti->pcb.usp = usp; childti->pcb.ksp = (unsigned long) childstack; childti->pcb.flags = 1; /* set FEN, clear everything else */ - /* Set a new TLS for the child thread? Peek back into the - syscall arguments that we saved on syscall entry. Oops, - except we'd have clobbered it with the parent/child set - of r20. Read the saved copy. */ + if (unlikely(p->flags & PF_KTHREAD)) { + /* kernel thread */ + memset(childstack, 0, + sizeof(struct switch_stack) + sizeof(struct pt_regs)); + childstack->r26 = (unsigned long) ret_from_kernel_thread; + childstack->r9 = usp; /* function */ + childstack->r10 = arg; + childregs->hae = alpha_mv.hae_cache, + childti->pcb.usp = 0; + return 0; + } /* Note: if CLONE_SETTLS is not set, then we must inherit the value from the parent, which will have been set by the block copy in dup_task_struct. This is non-intuitive, but is required for proper operation in the case of a threaded application calling fork. */ if (clone_flags & CLONE_SETTLS) - childti->pcb.unique = settls; - + childti->pcb.unique = regs->r20; + childti->pcb.usp = usp ?: rdusp(); + *childregs = *regs; + childregs->r0 = 0; + childregs->r19 = 0; + childregs->r20 = 1; /* OSF/1 has some strange fork() semantics. */ + regs->r20 = 0; + stack = ((struct switch_stack *) regs) - 1; + *childstack = *stack; + childstack->r26 = (unsigned long) ret_from_fork; return 0; } @@ -355,7 +325,7 @@ dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt, struct thread_info *ti) dest[27] = pt->r27; dest[28] = pt->r28; dest[29] = pt->gp; - dest[30] = rdusp(); + dest[30] = ti == current_thread_info() ? rdusp() : ti->pcb.usp; dest[31] = pt->pc; /* Once upon a time this was the PS value. Which is stupid @@ -383,26 +353,6 @@ dump_elf_task_fp(elf_fpreg_t *dest, struct task_struct *task) EXPORT_SYMBOL(dump_elf_task_fp); /* - * sys_execve() executes a new program. - */ -asmlinkage int -do_sys_execve(char __user *ufilename, char __user * __user *argv, - char __user * __user *envp, struct pt_regs *regs) -{ - int error; - char *filename; - - filename = getname(ufilename); - error = PTR_ERR(filename); - if (IS_ERR(filename)) - goto out; - error = do_execve(filename, argv, envp, regs); - putname(filename); -out: - return error; -} - -/* * Return saved PC of a blocked thread. This assumes the frame * pointer is the 6th saved long on the kernel stack and that the * saved return address is the first long in the frame. This all diff --git a/arch/alpha/kernel/proto.h b/arch/alpha/kernel/proto.h index 708d5ca8778..da2d6ec9c37 100644 --- a/arch/alpha/kernel/proto.h +++ b/arch/alpha/kernel/proto.h @@ -20,7 +20,7 @@ struct pci_controller; extern struct pci_ops apecs_pci_ops; extern void apecs_init_arch(void); extern void apecs_pci_clr_err(void); -extern void apecs_machine_check(u64, u64); +extern void apecs_machine_check(unsigned long vector, unsigned long la_ptr); extern void apecs_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t); /* core_cia.c */ @@ -29,27 +29,26 @@ extern void cia_init_pci(void); extern void cia_init_arch(void); extern void pyxis_init_arch(void); extern void cia_kill_arch(int); -extern void cia_machine_check(u64, u64); +extern void cia_machine_check(unsigned long vector, unsigned long la_ptr); extern void cia_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t); /* core_irongate.c */ extern struct pci_ops irongate_pci_ops; extern int irongate_pci_clr_err(void); extern void irongate_init_arch(void); -extern void irongate_machine_check(u64, u64); #define irongate_pci_tbi ((void *)0) /* core_lca.c */ extern struct pci_ops lca_pci_ops; extern void lca_init_arch(void); -extern void lca_machine_check(u64, u64); +extern void lca_machine_check(unsigned long vector, unsigned long la_ptr); extern void lca_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t); /* core_marvel.c */ extern struct pci_ops marvel_pci_ops; extern void marvel_init_arch(void); extern void marvel_kill_arch(int); -extern void marvel_machine_check(u64, u64); +extern void marvel_machine_check(unsigned long, unsigned long); extern void marvel_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t); extern int marvel_pa_to_nid(unsigned long); extern int marvel_cpuid_to_nid(int); @@ -64,7 +63,7 @@ void io7_clear_errors(struct io7 *io7); extern struct pci_ops mcpcia_pci_ops; extern void mcpcia_init_arch(void); extern void mcpcia_init_hoses(void); -extern void mcpcia_machine_check(u64, u64); +extern void mcpcia_machine_check(unsigned long vector, unsigned long la_ptr); extern void mcpcia_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t); /* core_polaris.c */ @@ -72,21 +71,21 @@ extern struct pci_ops polaris_pci_ops; extern int polaris_read_config_dword(struct pci_dev *, int, u32 *); extern int polaris_write_config_dword(struct pci_dev *, int, u32); extern void polaris_init_arch(void); -extern void polaris_machine_check(u64, u64); +extern void polaris_machine_check(unsigned long vector, unsigned long la_ptr); #define polaris_pci_tbi ((void *)0) /* core_t2.c */ extern struct pci_ops t2_pci_ops; extern void t2_init_arch(void); extern void t2_kill_arch(int); -extern void t2_machine_check(u64, u64); +extern void t2_machine_check(unsigned long vector, unsigned long la_ptr); extern void t2_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t); /* core_titan.c */ extern struct pci_ops titan_pci_ops; extern void titan_init_arch(void); extern void titan_kill_arch(int); -extern void titan_machine_check(u64, u64); +extern void titan_machine_check(unsigned long, unsigned long); extern void titan_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t); extern struct _alpha_agp_info *titan_agp_info(void); @@ -94,14 +93,14 @@ extern struct _alpha_agp_info *titan_agp_info(void); extern struct pci_ops tsunami_pci_ops; extern void tsunami_init_arch(void); extern void tsunami_kill_arch(int); -extern void tsunami_machine_check(u64, u64); +extern void tsunami_machine_check(unsigned long vector, unsigned long la_ptr); extern void tsunami_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t); /* core_wildfire.c */ extern struct pci_ops wildfire_pci_ops; extern void wildfire_init_arch(void); extern void wildfire_kill_arch(int); -extern void wildfire_machine_check(u64, u64); +extern void wildfire_machine_check(unsigned long vector, unsigned long la_ptr); extern void wildfire_pci_tbi(struct pci_controller *, dma_addr_t, dma_addr_t); extern int wildfire_pa_to_nid(unsigned long); extern int wildfire_cpuid_to_nid(int); @@ -136,13 +135,13 @@ extern void unregister_srm_console(void); /* smp.c */ extern void setup_smp(void); extern void handle_ipi(struct pt_regs *); -extern void smp_percpu_timer_interrupt(struct pt_regs *); /* bios32.c */ /* extern void reset_for_srm(void); */ /* time.c */ -extern irqreturn_t timer_interrupt(int irq, void *dev); +extern irqreturn_t rtc_timer_interrupt(int irq, void *dev); +extern void init_clockevent(void); extern void common_init_rtc(void); extern unsigned long est_cycle_freq; @@ -155,9 +154,6 @@ extern void SMC669_Init(int); /* es1888.c */ extern void es1888_init(void); -/* ns87312.c */ -extern void ns87312_enable_ide(long ide_base); - /* ../lib/fpreg.c */ extern void alpha_write_fp_reg (unsigned long reg, unsigned long val); extern unsigned long alpha_read_fp_reg (unsigned long reg); diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c index 1e9ad52c460..86d835157b5 100644 --- a/arch/alpha/kernel/ptrace.c +++ b/arch/alpha/kernel/ptrace.c @@ -8,17 +8,16 @@ #include <linux/sched.h> #include <linux/mm.h> #include <linux/smp.h> -#include <linux/smp_lock.h> #include <linux/errno.h> #include <linux/ptrace.h> #include <linux/user.h> -#include <linux/slab.h> #include <linux/security.h> #include <linux/signal.h> +#include <linux/tracehook.h> +#include <linux/audit.h> #include <asm/uaccess.h> #include <asm/pgtable.h> -#include <asm/system.h> #include <asm/fpu.h> #include "proto.h" @@ -250,6 +249,17 @@ ptrace_cancel_bpt(struct task_struct * child) return (nsaved != 0); } +void user_enable_single_step(struct task_struct *child) +{ + /* Mark single stepping. */ + task_thread_info(child)->bpt_nsaved = -1; +} + +void user_disable_single_step(struct task_struct *child) +{ + ptrace_cancel_bpt(child); +} + /* * Called by kernel/ptrace.c when detaching.. * @@ -257,10 +267,11 @@ ptrace_cancel_bpt(struct task_struct * child) */ void ptrace_disable(struct task_struct *child) { - ptrace_cancel_bpt(child); + user_disable_single_step(child); } -long arch_ptrace(struct task_struct *child, long request, long addr, long data) +long arch_ptrace(struct task_struct *child, long request, + unsigned long addr, unsigned long data) { unsigned long tmp; size_t copied; @@ -283,7 +294,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) case PTRACE_PEEKUSR: force_successful_syscall_return(); ret = get_reg(child, addr); - DBG(DBG_MEM, ("peek $%ld->%#lx\n", addr, ret)); + DBG(DBG_MEM, ("peek $%lu->%#lx\n", addr, ret)); break; /* When I and D space are separate, this will have to be fixed. */ @@ -293,55 +304,9 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) break; case PTRACE_POKEUSR: /* write the specified register */ - DBG(DBG_MEM, ("poke $%ld<-%#lx\n", addr, data)); + DBG(DBG_MEM, ("poke $%lu<-%#lx\n", addr, data)); ret = put_reg(child, addr, data); break; - - case PTRACE_SYSCALL: - /* continue and stop at next (return from) syscall */ - case PTRACE_CONT: /* restart after signal. */ - ret = -EIO; - if (!valid_signal(data)) - break; - if (request == PTRACE_SYSCALL) - set_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - else - clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - child->exit_code = data; - /* make sure single-step breakpoint is gone. */ - ptrace_cancel_bpt(child); - wake_up_process(child); - ret = 0; - break; - - /* - * Make the child exit. Best I can do is send it a sigkill. - * perhaps it should be put in the status that it wants to - * exit. - */ - case PTRACE_KILL: - ret = 0; - if (child->exit_state == EXIT_ZOMBIE) - break; - child->exit_code = SIGKILL; - /* make sure single-step breakpoint is gone. */ - ptrace_cancel_bpt(child); - wake_up_process(child); - break; - - case PTRACE_SINGLESTEP: /* execute single instruction. */ - ret = -EIO; - if (!valid_signal(data)) - break; - /* Mark single stepping. */ - task_thread_info(child)->bpt_nsaved = -1; - clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); - child->exit_code = data; - wake_up_process(child); - /* give it a chance to run. */ - ret = 0; - break; - default: ret = ptrace_request(child, request, addr, data); break; @@ -349,25 +314,21 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) return ret; } +asmlinkage unsigned long syscall_trace_enter(void) +{ + unsigned long ret = 0; + struct pt_regs *regs = current_pt_regs(); + if (test_thread_flag(TIF_SYSCALL_TRACE) && + tracehook_report_syscall_entry(current_pt_regs())) + ret = -1UL; + audit_syscall_entry(AUDIT_ARCH_ALPHA, regs->r0, regs->r16, regs->r17, regs->r18, regs->r19); + return ret ?: current_pt_regs()->r0; +} + asmlinkage void -syscall_trace(void) +syscall_trace_leave(void) { - if (!test_thread_flag(TIF_SYSCALL_TRACE)) - return; - if (!(current->ptrace & PT_PTRACED)) - return; - /* The 0x80 provides a way for the tracing parent to distinguish - between a syscall stop and SIGTRAP delivery */ - ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) - ? 0x80 : 0)); - - /* - * This isn't the same as continuing with a signal, but it will do - * for normal use. strace only continues with a signal if the - * stopping signal is not SIGTRAP. -brl - */ - if (current->exit_code) { - send_sig(current->exit_code, current, 1); - current->exit_code = 0; - } + audit_syscall_exit(current_pt_regs()); + if (test_thread_flag(TIF_SYSCALL_TRACE)) + tracehook_report_syscall_exit(current_pt_regs(), 0); } diff --git a/arch/alpha/kernel/rtc.c b/arch/alpha/kernel/rtc.c new file mode 100644 index 00000000000..c8d284d8521 --- /dev/null +++ b/arch/alpha/kernel/rtc.c @@ -0,0 +1,323 @@ +/* + * linux/arch/alpha/kernel/rtc.c + * + * Copyright (C) 1991, 1992, 1995, 1999, 2000 Linus Torvalds + * + * This file contains date handling. + */ +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/string.h> +#include <linux/mc146818rtc.h> +#include <linux/bcd.h> +#include <linux/rtc.h> +#include <linux/platform_device.h> + +#include <asm/rtc.h> + +#include "proto.h" + + +/* + * Support for the RTC device. + * + * We don't want to use the rtc-cmos driver, because we don't want to support + * alarms, as that would be indistinguishable from timer interrupts. + * + * Further, generic code is really, really tied to a 1900 epoch. This is + * true in __get_rtc_time as well as the users of struct rtc_time e.g. + * rtc_tm_to_time. Thankfully all of the other epochs in use are later + * than 1900, and so it's easy to adjust. + */ + +static unsigned long rtc_epoch; + +static int __init +specifiy_epoch(char *str) +{ + unsigned long epoch = simple_strtoul(str, NULL, 0); + if (epoch < 1900) + printk("Ignoring invalid user specified epoch %lu\n", epoch); + else + rtc_epoch = epoch; + return 1; +} +__setup("epoch=", specifiy_epoch); + +static void __init +init_rtc_epoch(void) +{ + int epoch, year, ctrl; + + if (rtc_epoch != 0) { + /* The epoch was specified on the command-line. */ + return; + } + + /* Detect the epoch in use on this computer. */ + ctrl = CMOS_READ(RTC_CONTROL); + year = CMOS_READ(RTC_YEAR); + if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD) + year = bcd2bin(year); + + /* PC-like is standard; used for year >= 70 */ + epoch = 1900; + if (year < 20) { + epoch = 2000; + } else if (year >= 20 && year < 48) { + /* NT epoch */ + epoch = 1980; + } else if (year >= 48 && year < 70) { + /* Digital UNIX epoch */ + epoch = 1952; + } + rtc_epoch = epoch; + + printk(KERN_INFO "Using epoch %d for rtc year %d\n", epoch, year); +} + +static int +alpha_rtc_read_time(struct device *dev, struct rtc_time *tm) +{ + __get_rtc_time(tm); + + /* Adjust for non-default epochs. It's easier to depend on the + generic __get_rtc_time and adjust the epoch here than create + a copy of __get_rtc_time with the edits we need. */ + if (rtc_epoch != 1900) { + int year = tm->tm_year; + /* Undo the century adjustment made in __get_rtc_time. */ + if (year >= 100) + year -= 100; + year += rtc_epoch - 1900; + /* Redo the century adjustment with the epoch in place. */ + if (year <= 69) + year += 100; + tm->tm_year = year; + } + + return rtc_valid_tm(tm); +} + +static int +alpha_rtc_set_time(struct device *dev, struct rtc_time *tm) +{ + struct rtc_time xtm; + + if (rtc_epoch != 1900) { + xtm = *tm; + xtm.tm_year -= rtc_epoch - 1900; + tm = &xtm; + } + + return __set_rtc_time(tm); +} + +static int +alpha_rtc_set_mmss(struct device *dev, unsigned long nowtime) +{ + int retval = 0; + int real_seconds, real_minutes, cmos_minutes; + unsigned char save_control, save_freq_select; + + /* Note: This code only updates minutes and seconds. Comments + indicate this was to avoid messing with unknown time zones, + and with the epoch nonsense described above. In order for + this to work, the existing clock cannot be off by more than + 15 minutes. + + ??? This choice is may be out of date. The x86 port does + not have problems with timezones, and the epoch processing has + now been fixed in alpha_set_rtc_time. + + In either case, one can always force a full rtc update with + the userland hwclock program, so surely 15 minute accuracy + is no real burden. */ + + /* In order to set the CMOS clock precisely, we have to be called + 500 ms after the second nowtime has started, because when + nowtime is written into the registers of the CMOS clock, it will + jump to the next second precisely 500 ms later. Check the Motorola + MC146818A or Dallas DS12887 data sheet for details. */ + + /* irq are locally disabled here */ + spin_lock(&rtc_lock); + /* Tell the clock it's being set */ + save_control = CMOS_READ(RTC_CONTROL); + CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL); + + /* Stop and reset prescaler */ + save_freq_select = CMOS_READ(RTC_FREQ_SELECT); + CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT); + + cmos_minutes = CMOS_READ(RTC_MINUTES); + if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) + cmos_minutes = bcd2bin(cmos_minutes); + + real_seconds = nowtime % 60; + real_minutes = nowtime / 60; + if (((abs(real_minutes - cmos_minutes) + 15) / 30) & 1) { + /* correct for half hour time zone */ + real_minutes += 30; + } + real_minutes %= 60; + + if (abs(real_minutes - cmos_minutes) < 30) { + if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { + real_seconds = bin2bcd(real_seconds); + real_minutes = bin2bcd(real_minutes); + } + CMOS_WRITE(real_seconds,RTC_SECONDS); + CMOS_WRITE(real_minutes,RTC_MINUTES); + } else { + printk_once(KERN_NOTICE + "set_rtc_mmss: can't update from %d to %d\n", + cmos_minutes, real_minutes); + retval = -1; + } + + /* The following flags have to be released exactly in this order, + * otherwise the DS12887 (popular MC146818A clone with integrated + * battery and quartz) will not reset the oscillator and will not + * update precisely 500 ms later. You won't find this mentioned in + * the Dallas Semiconductor data sheets, but who believes data + * sheets anyway ... -- Markus Kuhn + */ + CMOS_WRITE(save_control, RTC_CONTROL); + CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT); + spin_unlock(&rtc_lock); + + return retval; +} + +static int +alpha_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg) +{ + switch (cmd) { + case RTC_EPOCH_READ: + return put_user(rtc_epoch, (unsigned long __user *)arg); + case RTC_EPOCH_SET: + if (arg < 1900) + return -EINVAL; + rtc_epoch = arg; + return 0; + default: + return -ENOIOCTLCMD; + } +} + +static const struct rtc_class_ops alpha_rtc_ops = { + .read_time = alpha_rtc_read_time, + .set_time = alpha_rtc_set_time, + .set_mmss = alpha_rtc_set_mmss, + .ioctl = alpha_rtc_ioctl, +}; + +/* + * Similarly, except do the actual CMOS access on the boot cpu only. + * This requires marshalling the data across an interprocessor call. + */ + +#if defined(CONFIG_SMP) && \ + (defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_MARVEL)) +# define HAVE_REMOTE_RTC 1 + +union remote_data { + struct rtc_time *tm; + unsigned long now; + long retval; +}; + +static void +do_remote_read(void *data) +{ + union remote_data *x = data; + x->retval = alpha_rtc_read_time(NULL, x->tm); +} + +static int +remote_read_time(struct device *dev, struct rtc_time *tm) +{ + union remote_data x; + if (smp_processor_id() != boot_cpuid) { + x.tm = tm; + smp_call_function_single(boot_cpuid, do_remote_read, &x, 1); + return x.retval; + } + return alpha_rtc_read_time(NULL, tm); +} + +static void +do_remote_set(void *data) +{ + union remote_data *x = data; + x->retval = alpha_rtc_set_time(NULL, x->tm); +} + +static int +remote_set_time(struct device *dev, struct rtc_time *tm) +{ + union remote_data x; + if (smp_processor_id() != boot_cpuid) { + x.tm = tm; + smp_call_function_single(boot_cpuid, do_remote_set, &x, 1); + return x.retval; + } + return alpha_rtc_set_time(NULL, tm); +} + +static void +do_remote_mmss(void *data) +{ + union remote_data *x = data; + x->retval = alpha_rtc_set_mmss(NULL, x->now); +} + +static int +remote_set_mmss(struct device *dev, unsigned long now) +{ + union remote_data x; + if (smp_processor_id() != boot_cpuid) { + x.now = now; + smp_call_function_single(boot_cpuid, do_remote_mmss, &x, 1); + return x.retval; + } + return alpha_rtc_set_mmss(NULL, now); +} + +static const struct rtc_class_ops remote_rtc_ops = { + .read_time = remote_read_time, + .set_time = remote_set_time, + .set_mmss = remote_set_mmss, + .ioctl = alpha_rtc_ioctl, +}; +#endif + +static int __init +alpha_rtc_init(void) +{ + const struct rtc_class_ops *ops; + struct platform_device *pdev; + struct rtc_device *rtc; + const char *name; + + init_rtc_epoch(); + name = "rtc-alpha"; + ops = &alpha_rtc_ops; + +#ifdef HAVE_REMOTE_RTC + if (alpha_mv.rtc_boot_cpu_only) + ops = &remote_rtc_ops; +#endif + + pdev = platform_device_register_simple(name, -1, NULL, 0); + rtc = devm_rtc_device_register(&pdev->dev, name, ops, THIS_MODULE); + if (IS_ERR(rtc)) + return PTR_ERR(rtc); + + platform_set_drvdata(pdev, rtc); + return 0; +} +device_initcall(alpha_rtc_init); diff --git a/arch/alpha/kernel/semaphore.c b/arch/alpha/kernel/semaphore.c deleted file mode 100644 index 8d2982aa1b8..00000000000 --- a/arch/alpha/kernel/semaphore.c +++ /dev/null @@ -1,224 +0,0 @@ -/* - * Alpha semaphore implementation. - * - * (C) Copyright 1996 Linus Torvalds - * (C) Copyright 1999, 2000 Richard Henderson - */ - -#include <linux/errno.h> -#include <linux/sched.h> -#include <linux/init.h> - -/* - * This is basically the PPC semaphore scheme ported to use - * the Alpha ll/sc sequences, so see the PPC code for - * credits. - */ - -/* - * Atomically update sem->count. - * This does the equivalent of the following: - * - * old_count = sem->count; - * tmp = MAX(old_count, 0) + incr; - * sem->count = tmp; - * return old_count; - */ -static inline int __sem_update_count(struct semaphore *sem, int incr) -{ - long old_count, tmp = 0; - - __asm__ __volatile__( - "1: ldl_l %0,%2\n" - " cmovgt %0,%0,%1\n" - " addl %1,%3,%1\n" - " stl_c %1,%2\n" - " beq %1,2f\n" - " mb\n" - ".subsection 2\n" - "2: br 1b\n" - ".previous" - : "=&r" (old_count), "=&r" (tmp), "=m" (sem->count) - : "Ir" (incr), "1" (tmp), "m" (sem->count)); - - return old_count; -} - -/* - * Perform the "down" function. Return zero for semaphore acquired, - * return negative for signalled out of the function. - * - * If called from down, the return is ignored and the wait loop is - * not interruptible. This means that a task waiting on a semaphore - * using "down()" cannot be killed until someone does an "up()" on - * the semaphore. - * - * If called from down_interruptible, the return value gets checked - * upon return. If the return value is negative then the task continues - * with the negative value in the return register (it can be tested by - * the caller). - * - * Either form may be used in conjunction with "up()". - */ - -void __sched -__down_failed(struct semaphore *sem) -{ - struct task_struct *tsk = current; - DECLARE_WAITQUEUE(wait, tsk); - -#ifdef CONFIG_DEBUG_SEMAPHORE - printk("%s(%d): down failed(%p)\n", - tsk->comm, task_pid_nr(tsk), sem); -#endif - - tsk->state = TASK_UNINTERRUPTIBLE; - wmb(); - add_wait_queue_exclusive(&sem->wait, &wait); - - /* - * Try to get the semaphore. If the count is > 0, then we've - * got the semaphore; we decrement count and exit the loop. - * If the count is 0 or negative, we set it to -1, indicating - * that we are asleep, and then sleep. - */ - while (__sem_update_count(sem, -1) <= 0) { - schedule(); - set_task_state(tsk, TASK_UNINTERRUPTIBLE); - } - remove_wait_queue(&sem->wait, &wait); - tsk->state = TASK_RUNNING; - - /* - * If there are any more sleepers, wake one of them up so - * that it can either get the semaphore, or set count to -1 - * indicating that there are still processes sleeping. - */ - wake_up(&sem->wait); - -#ifdef CONFIG_DEBUG_SEMAPHORE - printk("%s(%d): down acquired(%p)\n", - tsk->comm, task_pid_nr(tsk), sem); -#endif -} - -int __sched -__down_failed_interruptible(struct semaphore *sem) -{ - struct task_struct *tsk = current; - DECLARE_WAITQUEUE(wait, tsk); - long ret = 0; - -#ifdef CONFIG_DEBUG_SEMAPHORE - printk("%s(%d): down failed(%p)\n", - tsk->comm, task_pid_nr(tsk), sem); -#endif - - tsk->state = TASK_INTERRUPTIBLE; - wmb(); - add_wait_queue_exclusive(&sem->wait, &wait); - - while (__sem_update_count(sem, -1) <= 0) { - if (signal_pending(current)) { - /* - * A signal is pending - give up trying. - * Set sem->count to 0 if it is negative, - * since we are no longer sleeping. - */ - __sem_update_count(sem, 0); - ret = -EINTR; - break; - } - schedule(); - set_task_state(tsk, TASK_INTERRUPTIBLE); - } - - remove_wait_queue(&sem->wait, &wait); - tsk->state = TASK_RUNNING; - wake_up(&sem->wait); - -#ifdef CONFIG_DEBUG_SEMAPHORE - printk("%s(%d): down %s(%p)\n", - current->comm, task_pid_nr(current), - (ret < 0 ? "interrupted" : "acquired"), sem); -#endif - return ret; -} - -void -__up_wakeup(struct semaphore *sem) -{ - /* - * Note that we incremented count in up() before we came here, - * but that was ineffective since the result was <= 0, and - * any negative value of count is equivalent to 0. - * This ends up setting count to 1, unless count is now > 0 - * (i.e. because some other cpu has called up() in the meantime), - * in which case we just increment count. - */ - __sem_update_count(sem, 1); - wake_up(&sem->wait); -} - -void __sched -down(struct semaphore *sem) -{ -#ifdef WAITQUEUE_DEBUG - CHECK_MAGIC(sem->__magic); -#endif -#ifdef CONFIG_DEBUG_SEMAPHORE - printk("%s(%d): down(%p) <count=%d> from %p\n", - current->comm, task_pid_nr(current), sem, - atomic_read(&sem->count), __builtin_return_address(0)); -#endif - __down(sem); -} - -int __sched -down_interruptible(struct semaphore *sem) -{ -#ifdef WAITQUEUE_DEBUG - CHECK_MAGIC(sem->__magic); -#endif -#ifdef CONFIG_DEBUG_SEMAPHORE - printk("%s(%d): down(%p) <count=%d> from %p\n", - current->comm, task_pid_nr(current), sem, - atomic_read(&sem->count), __builtin_return_address(0)); -#endif - return __down_interruptible(sem); -} - -int -down_trylock(struct semaphore *sem) -{ - int ret; - -#ifdef WAITQUEUE_DEBUG - CHECK_MAGIC(sem->__magic); -#endif - - ret = __down_trylock(sem); - -#ifdef CONFIG_DEBUG_SEMAPHORE - printk("%s(%d): down_trylock %s from %p\n", - current->comm, task_pid_nr(current), - ret ? "failed" : "acquired", - __builtin_return_address(0)); -#endif - - return ret; -} - -void -up(struct semaphore *sem) -{ -#ifdef WAITQUEUE_DEBUG - CHECK_MAGIC(sem->__magic); -#endif -#ifdef CONFIG_DEBUG_SEMAPHORE - printk("%s(%d): up(%p) <count=%d> from %p\n", - current->comm, task_pid_nr(current), sem, - atomic_read(&sem->count), __builtin_return_address(0)); -#endif - __up(sem); -} diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c index a449e999027..b20af76f12c 100644 --- a/arch/alpha/kernel/setup.c +++ b/arch/alpha/kernel/setup.c @@ -43,6 +43,7 @@ #include <asm/setup.h> #include <asm/io.h> #include <linux/log2.h> +#include <linux/export.h> extern struct atomic_notifier_head panic_notifier_list; static int alpha_panic_event(struct notifier_block *, unsigned long, void *); @@ -54,7 +55,6 @@ static struct notifier_block alpha_panic_block = { #include <asm/uaccess.h> #include <asm/pgtable.h> -#include <asm/system.h> #include <asm/hwrpb.h> #include <asm/dma.h> #include <asm/mmu_context.h> @@ -79,6 +79,11 @@ int alpha_l3_cacheshape; unsigned long alpha_verbose_mcheck = CONFIG_VERBOSE_MCHECK_ON; #endif +#ifdef CONFIG_NUMA +struct cpumask node_to_cpumask_map[MAX_NUMNODES] __read_mostly; +EXPORT_SYMBOL(node_to_cpumask_map); +#endif + /* Which processor we booted from. */ int boot_cpuid; @@ -110,10 +115,17 @@ unsigned long alpha_agpgart_size = DEFAULT_AGP_APER_SIZE; #ifdef CONFIG_ALPHA_GENERIC struct alpha_machine_vector alpha_mv; +#endif + +#ifndef alpha_using_srm int alpha_using_srm; EXPORT_SYMBOL(alpha_using_srm); #endif +#ifndef alpha_using_qemu +int alpha_using_qemu; +#endif + static struct alpha_machine_vector *get_sysvec(unsigned long, unsigned long, unsigned long); static struct alpha_machine_vector *get_sysvec_byname(const char *); @@ -247,9 +259,9 @@ reserve_std_resources(void) } #define PFN_MAX PFN_DOWN(0x80000000) -#define for_each_mem_cluster(memdesc, cluster, i) \ - for ((cluster) = (memdesc)->cluster, (i) = 0; \ - (i) < (memdesc)->numclusters; (i)++, (cluster)++) +#define for_each_mem_cluster(memdesc, _cluster, i) \ + for ((_cluster) = (memdesc)->cluster, (i) = 0; \ + (i) < (memdesc)->numclusters; (i)++, (_cluster)++) static unsigned long __init get_mem_size_limit(char *s) @@ -524,11 +536,15 @@ setup_arch(char **cmdline_p) atomic_notifier_chain_register(&panic_notifier_list, &alpha_panic_block); -#ifdef CONFIG_ALPHA_GENERIC +#ifndef alpha_using_srm /* Assume that we've booted from SRM if we haven't booted from MILO. Detect the later by looking for "MILO" in the system serial nr. */ alpha_using_srm = strncmp((const char *)hwrpb->ssn, "MILO", 4) != 0; #endif +#ifndef alpha_using_qemu + /* Similarly, look for QEMU. */ + alpha_using_qemu = strstr((const char *)hwrpb->ssn, "QEMU") != 0; +#endif /* If we are using SRM, we want to allow callbacks as early as possible, so do this NOW, and then @@ -1202,6 +1218,7 @@ show_cpuinfo(struct seq_file *f, void *slot) char *systype_name; char *sysvariation_name; int nr_processors; + unsigned long timer_freq; cpu_index = (unsigned) (cpu->type - 1); cpu_name = "Unknown"; @@ -1213,6 +1230,12 @@ show_cpuinfo(struct seq_file *f, void *slot) nr_processors = get_nr_processors(cpu, hwrpb->nr_processors); +#if CONFIG_HZ == 1024 || CONFIG_HZ == 1200 + timer_freq = (100UL * hwrpb->intr_freq) / 4096; +#else + timer_freq = 100UL * CONFIG_HZ; +#endif + seq_printf(f, "cpu\t\t\t: Alpha\n" "cpu model\t\t: %s\n" "cpu variation\t\t: %ld\n" @@ -1238,8 +1261,7 @@ show_cpuinfo(struct seq_file *f, void *slot) (char*)hwrpb->ssn, est_cycle_freq ? : hwrpb->cycle_freq, est_cycle_freq ? "est." : "", - hwrpb->intr_freq / 4096, - (100 * hwrpb->intr_freq / 4096) % 100, + timer_freq / 100, timer_freq % 100, hwrpb->pagesize, hwrpb->pa_bits, hwrpb->max_asn, @@ -1250,9 +1272,9 @@ show_cpuinfo(struct seq_file *f, void *slot) platform_string(), nr_processors); #ifdef CONFIG_SMP - seq_printf(f, "cpus active\t\t: %d\n" + seq_printf(f, "cpus active\t\t: %u\n" "cpu active mask\t\t: %016lx\n", - num_online_cpus(), cpus_addr(cpu_possible_map)[0]); + num_online_cpus(), cpumask_bits(cpu_possible_mask)[0]); #endif show_cache_size (f, "L1 Icache", alpha_l1i_cacheshape); @@ -1399,8 +1421,6 @@ determine_cpu_caches (unsigned int cpu_type) case PCA56_CPU: case PCA57_CPU: { - unsigned long cbox_config, size; - if (cpu_type == PCA56_CPU) { L1I = CSHAPE(16*1024, 6, 1); L1D = CSHAPE(8*1024, 5, 1); @@ -1410,10 +1430,12 @@ determine_cpu_caches (unsigned int cpu_type) } L3 = -1; +#if 0 + unsigned long cbox_config, size; + cbox_config = *(vulp) phys_to_virt (0xfffff00008UL); size = 512*1024 * (1 << ((cbox_config >> 12) & 3)); -#if 0 L2 = ((cbox_config >> 31) & 1 ? CSHAPE (size, 6, 1) : -1); #else L2 = external_cache_probe(512*1024, 6); diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c index 410af4f3140..6cec2881acb 100644 --- a/arch/alpha/kernel/signal.c +++ b/arch/alpha/kernel/signal.c @@ -19,6 +19,8 @@ #include <linux/tty.h> #include <linux/binfmts.h> #include <linux/bitops.h> +#include <linux/syscalls.h> +#include <linux/tracehook.h> #include <asm/uaccess.h> #include <asm/sigcontext.h> @@ -32,58 +34,29 @@ #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) asmlinkage void ret_from_sys_call(void); -static void do_signal(struct pt_regs *, struct switch_stack *, - unsigned long, unsigned long); - /* * The OSF/1 sigprocmask calling sequence is different from the * C sigprocmask() sequence.. - * - * how: - * 1 - SIG_BLOCK - * 2 - SIG_UNBLOCK - * 3 - SIG_SETMASK - * - * We change the range to -1 .. 1 in order to let gcc easily - * use the conditional move instructions. - * - * Note that we don't need to acquire the kernel lock for SMP - * operation, as all of this is local to this thread. */ -asmlinkage unsigned long -do_osf_sigprocmask(int how, unsigned long newmask, struct pt_regs *regs) +SYSCALL_DEFINE2(osf_sigprocmask, int, how, unsigned long, newmask) { - unsigned long oldmask = -EINVAL; - - if ((unsigned long)how-1 <= 2) { - long sign = how-2; /* -1 .. 1 */ - unsigned long block, unblock; - - newmask &= _BLOCKABLE; - spin_lock_irq(¤t->sighand->siglock); - oldmask = current->blocked.sig[0]; - - unblock = oldmask & ~newmask; - block = oldmask | newmask; - if (!sign) - block = unblock; - if (sign <= 0) - newmask = block; - if (_NSIG_WORDS > 1 && sign > 0) - sigemptyset(¤t->blocked); - current->blocked.sig[0] = newmask; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - regs->r0 = 0; /* special no error return */ + sigset_t oldmask; + sigset_t mask; + unsigned long res; + + siginitset(&mask, newmask & _BLOCKABLE); + res = sigprocmask(how, &mask, &oldmask); + if (!res) { + force_successful_syscall_return(); + res = oldmask.sig[0]; } - return oldmask; + return res; } -asmlinkage int -osf_sigaction(int sig, const struct osf_sigaction __user *act, - struct osf_sigaction __user *oact) +SYSCALL_DEFINE3(osf_sigaction, int, sig, + const struct osf_sigaction __user *, act, + struct osf_sigaction __user *, oact) { struct k_sigaction new_ka, old_ka; int ret; @@ -92,9 +65,9 @@ osf_sigaction(int sig, const struct osf_sigaction __user *act, old_sigset_t mask; if (!access_ok(VERIFY_READ, act, sizeof(*act)) || __get_user(new_ka.sa.sa_handler, &act->sa_handler) || - __get_user(new_ka.sa.sa_flags, &act->sa_flags)) + __get_user(new_ka.sa.sa_flags, &act->sa_flags) || + __get_user(mask, &act->sa_mask)) return -EFAULT; - __get_user(mask, &act->sa_mask); siginitset(&new_ka.sa.sa_mask, mask); new_ka.ka_restorer = NULL; } @@ -104,18 +77,17 @@ osf_sigaction(int sig, const struct osf_sigaction __user *act, if (!ret && oact) { if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) || __put_user(old_ka.sa.sa_handler, &oact->sa_handler) || - __put_user(old_ka.sa.sa_flags, &oact->sa_flags)) + __put_user(old_ka.sa.sa_flags, &oact->sa_flags) || + __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask)) return -EFAULT; - __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask); } return ret; } -asmlinkage long -sys_rt_sigaction(int sig, const struct sigaction __user *act, - struct sigaction __user *oact, - size_t sigsetsize, void __user *restorer) +SYSCALL_DEFINE5(rt_sigaction, int, sig, const struct sigaction __user *, act, + struct sigaction __user *, oact, + size_t, sigsetsize, void __user *, restorer) { struct k_sigaction new_ka, old_ka; int ret; @@ -141,66 +113,6 @@ sys_rt_sigaction(int sig, const struct sigaction __user *act, } /* - * Atomically swap in the new signal mask, and wait for a signal. - */ -asmlinkage int -do_sigsuspend(old_sigset_t mask, struct pt_regs *regs, struct switch_stack *sw) -{ - mask &= _BLOCKABLE; - spin_lock_irq(¤t->sighand->siglock); - current->saved_sigmask = current->blocked; - siginitset(¤t->blocked, mask); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - /* Indicate EINTR on return from any possible signal handler, - which will not come back through here, but via sigreturn. */ - regs->r0 = EINTR; - regs->r19 = 1; - - current->state = TASK_INTERRUPTIBLE; - schedule(); - set_thread_flag(TIF_RESTORE_SIGMASK); - return -ERESTARTNOHAND; -} - -asmlinkage int -do_rt_sigsuspend(sigset_t __user *uset, size_t sigsetsize, - struct pt_regs *regs, struct switch_stack *sw) -{ - sigset_t set; - - /* XXX: Don't preclude handling different sized sigset_t's. */ - if (sigsetsize != sizeof(sigset_t)) - return -EINVAL; - if (copy_from_user(&set, uset, sizeof(set))) - return -EFAULT; - - sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->saved_sigmask = current->blocked; - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - - /* Indicate EINTR on return from any possible signal handler, - which will not come back through here, but via sigreturn. */ - regs->r0 = EINTR; - regs->r19 = 1; - - current->state = TASK_INTERRUPTIBLE; - schedule(); - set_thread_flag(TIF_RESTORE_SIGMASK); - return -ERESTARTNOHAND; -} - -asmlinkage int -sys_sigaltstack(const stack_t __user *uss, stack_t __user *uoss) -{ - return do_sigaltstack(uss, uoss, rdusp()); -} - -/* * Do a signal return; undo the signal stack. */ @@ -232,12 +144,14 @@ extern char compile_time_assert #define INSN_CALLSYS 0x00000083 static long -restore_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, - struct switch_stack *sw) +restore_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs) { unsigned long usp; + struct switch_stack *sw = (struct switch_stack *)regs - 1; long i, err = __get_user(regs->pc, &sc->sc_pc); + current_thread_info()->restart_block.fn = do_no_restart_syscall; + sw->r26 = (unsigned long) ret_from_sys_call; err |= __get_user(regs->r0, sc->sc_regs+0); @@ -285,9 +199,9 @@ restore_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, registers and transfer control from userland. */ asmlinkage void -do_sigreturn(struct sigcontext __user *sc, struct pt_regs *regs, - struct switch_stack *sw) +do_sigreturn(struct sigcontext __user *sc) { + struct pt_regs *regs = current_pt_regs(); sigset_t set; /* Verify that it's a good sigcontext before using it */ @@ -296,13 +210,9 @@ do_sigreturn(struct sigcontext __user *sc, struct pt_regs *regs, if (__get_user(set.sig[0], &sc->sc_mask)) goto give_sigsegv; - sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); - if (restore_sigcontext(sc, regs, sw)) + if (restore_sigcontext(sc, regs)) goto give_sigsegv; /* Send SIGTRAP if we're single-stepping: */ @@ -323,9 +233,9 @@ give_sigsegv: } asmlinkage void -do_rt_sigreturn(struct rt_sigframe __user *frame, struct pt_regs *regs, - struct switch_stack *sw) +do_rt_sigreturn(struct rt_sigframe __user *frame) { + struct pt_regs *regs = current_pt_regs(); sigset_t set; /* Verify that it's a good ucontext_t before using it */ @@ -334,13 +244,9 @@ do_rt_sigreturn(struct rt_sigframe __user *frame, struct pt_regs *regs, if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) goto give_sigsegv; - sigdelsetmask(&set, ~_BLOCKABLE); - spin_lock_irq(¤t->sighand->siglock); - current->blocked = set; - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + set_current_blocked(&set); - if (restore_sigcontext(&frame->uc.uc_mcontext, regs, sw)) + if (restore_sigcontext(&frame->uc.uc_mcontext, regs)) goto give_sigsegv; /* Send SIGTRAP if we're single-stepping: */ @@ -366,18 +272,16 @@ give_sigsegv: */ static inline void __user * -get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size) +get_sigframe(struct ksignal *ksig, unsigned long sp, size_t frame_size) { - if ((ka->sa.sa_flags & SA_ONSTACK) != 0 && ! sas_ss_flags(sp)) - sp = current->sas_ss_sp + current->sas_ss_size; - - return (void __user *)((sp - frame_size) & -32ul); + return (void __user *)((sigsp(sp, ksig) - frame_size) & -32ul); } static long setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, - struct switch_stack *sw, unsigned long mask, unsigned long sp) + unsigned long mask, unsigned long sp) { + struct switch_stack *sw = (struct switch_stack *)regs - 1; long i, err = 0; err |= __put_user(on_sig_stack((unsigned long)sc), &sc->sc_onstack); @@ -431,26 +335,24 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs, } static int -setup_frame(int sig, struct k_sigaction *ka, sigset_t *set, - struct pt_regs *regs, struct switch_stack * sw) +setup_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs) { unsigned long oldsp, r26, err = 0; struct sigframe __user *frame; oldsp = rdusp(); - frame = get_sigframe(ka, oldsp, sizeof(*frame)); + frame = get_sigframe(ksig, oldsp, sizeof(*frame)); if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame))) - goto give_sigsegv; + return -EFAULT; - err |= setup_sigcontext(&frame->sc, regs, sw, set->sig[0], oldsp); + err |= setup_sigcontext(&frame->sc, regs, set->sig[0], oldsp); if (err) - goto give_sigsegv; + return -EFAULT; /* Set up to return from userspace. If provided, use a stub already in userspace. */ - if (ka->ka_restorer) { - r26 = (unsigned long) ka->ka_restorer; - } else { + r26 = (unsigned long) ksig->ka.ka_restorer; + if (!r26) { err |= __put_user(INSN_MOV_R30_R16, frame->retcode+0); err |= __put_user(INSN_LDI_R0+__NR_sigreturn, frame->retcode+1); err |= __put_user(INSN_CALLSYS, frame->retcode+2); @@ -460,12 +362,12 @@ setup_frame(int sig, struct k_sigaction *ka, sigset_t *set, /* Check that everything was written properly. */ if (err) - goto give_sigsegv; + return err; /* "Return" to the handler */ regs->r26 = r26; - regs->r27 = regs->pc = (unsigned long) ka->sa.sa_handler; - regs->r16 = sig; /* a0: signal number */ + regs->r27 = regs->pc = (unsigned long) ksig->ka.sa.sa_handler; + regs->r16 = ksig->sig; /* a0: signal number */ regs->r17 = 0; /* a1: exception code */ regs->r18 = (unsigned long) &frame->sc; /* a2: sigcontext pointer */ wrusp((unsigned long) frame); @@ -474,46 +376,37 @@ setup_frame(int sig, struct k_sigaction *ka, sigset_t *set, printk("SIG deliver (%s:%d): sp=%p pc=%p ra=%p\n", current->comm, current->pid, frame, regs->pc, regs->r26); #endif - return 0; - -give_sigsegv: - force_sigsegv(sig, current); - return -EFAULT; } static int -setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, - sigset_t *set, struct pt_regs *regs, struct switch_stack * sw) +setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs) { unsigned long oldsp, r26, err = 0; struct rt_sigframe __user *frame; oldsp = rdusp(); - frame = get_sigframe(ka, oldsp, sizeof(*frame)); + frame = get_sigframe(ksig, oldsp, sizeof(*frame)); if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame))) - goto give_sigsegv; + return -EFAULT; - err |= copy_siginfo_to_user(&frame->info, info); + err |= copy_siginfo_to_user(&frame->info, &ksig->info); /* Create the ucontext. */ err |= __put_user(0, &frame->uc.uc_flags); err |= __put_user(0, &frame->uc.uc_link); err |= __put_user(set->sig[0], &frame->uc.uc_osf_sigmask); - err |= __put_user(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp); - err |= __put_user(sas_ss_flags(oldsp), &frame->uc.uc_stack.ss_flags); - err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size); - err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, sw, + err |= __save_altstack(&frame->uc.uc_stack, oldsp); + err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0], oldsp); err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); if (err) - goto give_sigsegv; + return -EFAULT; /* Set up to return from userspace. If provided, use a stub already in userspace. */ - if (ka->ka_restorer) { - r26 = (unsigned long) ka->ka_restorer; - } else { + r26 = (unsigned long) ksig->ka.ka_restorer; + if (!r26) { err |= __put_user(INSN_MOV_R30_R16, frame->retcode+0); err |= __put_user(INSN_LDI_R0+__NR_rt_sigreturn, frame->retcode+1); @@ -523,12 +416,12 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, } if (err) - goto give_sigsegv; + return -EFAULT; /* "Return" to the handler */ regs->r26 = r26; - regs->r27 = regs->pc = (unsigned long) ka->sa.sa_handler; - regs->r16 = sig; /* a0: signal number */ + regs->r27 = regs->pc = (unsigned long) ksig->ka.sa.sa_handler; + regs->r16 = ksig->sig; /* a0: signal number */ regs->r17 = (unsigned long) &frame->info; /* a1: siginfo pointer */ regs->r18 = (unsigned long) &frame->uc; /* a2: ucontext pointer */ wrusp((unsigned long) frame); @@ -539,37 +432,24 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, #endif return 0; - -give_sigsegv: - force_sigsegv(sig, current); - return -EFAULT; } /* * OK, we're invoking a handler. */ -static inline int -handle_signal(int sig, struct k_sigaction *ka, siginfo_t *info, - sigset_t *oldset, struct pt_regs * regs, struct switch_stack *sw) +static inline void +handle_signal(struct ksignal *ksig, struct pt_regs *regs) { + sigset_t *oldset = sigmask_to_save(); int ret; - if (ka->sa.sa_flags & SA_SIGINFO) - ret = setup_rt_frame(sig, ka, info, oldset, regs, sw); + if (ksig->ka.sa.sa_flags & SA_SIGINFO) + ret = setup_rt_frame(ksig, oldset, regs); else - ret = setup_frame(sig, ka, oldset, regs, sw); - - if (ret == 0) { - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); - if (!(ka->sa.sa_flags & SA_NODEFER)) - sigaddset(¤t->blocked,sig); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - } + ret = setup_frame(ksig, oldset, regs); - return ret; + signal_setup_done(ret, ksig, 0); } static inline void @@ -590,7 +470,6 @@ syscall_restart(unsigned long r0, unsigned long r19, regs->pc -= 4; break; case ERESTART_RESTARTBLOCK: - current_thread_info()->restart_block.fn = do_no_restart_syscall; regs->r0 = EINTR; break; } @@ -611,76 +490,62 @@ syscall_restart(unsigned long r0, unsigned long r19, * all (if we get here from anything but a syscall return, it will be 0) */ static void -do_signal(struct pt_regs * regs, struct switch_stack * sw, - unsigned long r0, unsigned long r19) +do_signal(struct pt_regs *regs, unsigned long r0, unsigned long r19) { - siginfo_t info; - int signr; unsigned long single_stepping = ptrace_cancel_bpt(current); - struct k_sigaction ka; - sigset_t *oldset; - - if (test_thread_flag(TIF_RESTORE_SIGMASK)) - oldset = ¤t->saved_sigmask; - else - oldset = ¤t->blocked; + struct ksignal ksig; /* This lets the debugger run, ... */ - signr = get_signal_to_deliver(&info, &ka, regs, NULL); - - /* ... so re-check the single stepping. */ - single_stepping |= ptrace_cancel_bpt(current); - - if (signr > 0) { + if (get_signal(&ksig)) { + /* ... so re-check the single stepping. */ + single_stepping |= ptrace_cancel_bpt(current); /* Whee! Actually deliver the signal. */ if (r0) - syscall_restart(r0, r19, regs, &ka); - if (handle_signal(signr, &ka, &info, oldset, regs, sw) == 0) { - /* A signal was successfully delivered, and the - saved sigmask was stored on the signal frame, - and will be restored by sigreturn. So we can - simply clear the restore sigmask flag. */ - if (test_thread_flag(TIF_RESTORE_SIGMASK)) - clear_thread_flag(TIF_RESTORE_SIGMASK); - } - if (single_stepping) - ptrace_set_bpt(current); /* re-set bpt */ - return; - } - - if (r0) { - switch (regs->r0) { - case ERESTARTNOHAND: - case ERESTARTSYS: - case ERESTARTNOINTR: - /* Reset v0 and a3 and replay syscall. */ - regs->r0 = r0; - regs->r19 = r19; - regs->pc -= 4; - break; - case ERESTART_RESTARTBLOCK: - /* Force v0 to the restart syscall and reply. */ - regs->r0 = __NR_restart_syscall; - regs->pc -= 4; - break; + syscall_restart(r0, r19, regs, &ksig.ka); + handle_signal(&ksig, regs); + } else { + single_stepping |= ptrace_cancel_bpt(current); + if (r0) { + switch (regs->r0) { + case ERESTARTNOHAND: + case ERESTARTSYS: + case ERESTARTNOINTR: + /* Reset v0 and a3 and replay syscall. */ + regs->r0 = r0; + regs->r19 = r19; + regs->pc -= 4; + break; + case ERESTART_RESTARTBLOCK: + /* Set v0 to the restart_syscall and replay */ + regs->r0 = __NR_restart_syscall; + regs->pc -= 4; + break; + } } + restore_saved_sigmask(); } - - /* If there's no signal to deliver, we just restore the saved mask. */ - if (test_thread_flag(TIF_RESTORE_SIGMASK)) { - clear_thread_flag(TIF_RESTORE_SIGMASK); - sigprocmask(SIG_SETMASK, ¤t->saved_sigmask, NULL); - } - if (single_stepping) ptrace_set_bpt(current); /* re-set breakpoint */ } void -do_notify_resume(struct pt_regs *regs, struct switch_stack *sw, - unsigned long thread_info_flags, +do_work_pending(struct pt_regs *regs, unsigned long thread_flags, unsigned long r0, unsigned long r19) { - if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK)) - do_signal(regs, sw, r0, r19); + do { + if (thread_flags & _TIF_NEED_RESCHED) { + schedule(); + } else { + local_irq_enable(); + if (thread_flags & _TIF_SIGPENDING) { + do_signal(regs, r0, r19); + r0 = 0; + } else { + clear_thread_flag(TIF_NOTIFY_RESUME); + tracehook_notify_resume(regs); + } + } + local_irq_disable(); + thread_flags = current_thread_info()->flags; + } while (thread_flags & _TIF_WORK_MASK); } diff --git a/arch/alpha/kernel/smc37c669.c b/arch/alpha/kernel/smc37c669.c index fd467b207f0..c803fc76ae4 100644 --- a/arch/alpha/kernel/smc37c669.c +++ b/arch/alpha/kernel/smc37c669.c @@ -3,7 +3,6 @@ */ #include <linux/kernel.h> -#include <linux/slab.h> #include <linux/mm.h> #include <linux/init.h> #include <linux/delay.h> @@ -934,18 +933,6 @@ void SMC37c669_display_device_info( * *-- */ -#if 0 -/* $INCLUDE_OPTIONS$ */ -#include "cp$inc:platform_io.h" -/* $INCLUDE_OPTIONS_END$ */ -#include "cp$src:common.h" -#include "cp$inc:prototypes.h" -#include "cp$src:kernel_def.h" -#include "cp$src:msg_def.h" -#include "cp$src:smcc669_def.h" -/* Platform-specific includes */ -#include "cp$src:platform.h" -#endif #ifndef TRUE #define TRUE 1 @@ -2542,8 +2529,8 @@ void __init SMC669_Init ( int index ) SMC37c669_display_device_info( ); #endif local_irq_restore(flags); - printk( "SMC37c669 Super I/O Controller found @ 0x%lx\n", - (unsigned long) SMC_base ); + printk( "SMC37c669 Super I/O Controller found @ 0x%p\n", + SMC_base ); } else { local_irq_restore(flags); diff --git a/arch/alpha/kernel/smc37c93x.c b/arch/alpha/kernel/smc37c93x.c index 2636cc028d0..6886b834f48 100644 --- a/arch/alpha/kernel/smc37c93x.c +++ b/arch/alpha/kernel/smc37c93x.c @@ -4,7 +4,6 @@ #include <linux/kernel.h> -#include <linux/slab.h> #include <linux/mm.h> #include <linux/init.h> #include <linux/delay.h> @@ -80,7 +79,6 @@ static unsigned long __init SMCConfigState(unsigned long baseAddr) { unsigned char devId; - unsigned char devRev; unsigned long configPort; unsigned long indexPort; @@ -101,7 +99,7 @@ static unsigned long __init SMCConfigState(unsigned long baseAddr) devId = inb(dataPort); if (devId == VALID_DEVICE_ID) { outb(DEVICE_REV, indexPort); - devRev = inb(dataPort); + /* unsigned char devRev = */ inb(dataPort); break; } else diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c index 63c2073401e..99ac36d5de4 100644 --- a/arch/alpha/kernel/smp.c +++ b/arch/alpha/kernel/smp.c @@ -27,10 +27,11 @@ #include <linux/cache.h> #include <linux/profile.h> #include <linux/bitops.h> +#include <linux/cpu.h> #include <asm/hwrpb.h> #include <asm/ptrace.h> -#include <asm/atomic.h> +#include <linux/atomic.h> #include <asm/io.h> #include <asm/irq.h> @@ -62,16 +63,12 @@ static struct { enum ipi_message_type { IPI_RESCHEDULE, IPI_CALL_FUNC, + IPI_CALL_FUNC_SINGLE, IPI_CPU_STOP, }; /* Set to a secondary's cpuid when it comes online. */ -static int smp_secondary_alive __devinitdata = 0; - -/* Which cpus ids came online. */ -cpumask_t cpu_online_map; - -EXPORT_SYMBOL(cpu_online_map); +static int smp_secondary_alive = 0; int smp_num_probed; /* Internal processor count */ int smp_num_cpus = 1; /* Number that came online. */ @@ -119,15 +116,16 @@ wait_boot_cpu_to_stop(int cpuid) /* * Where secondaries begin a life of C. */ -void __init +void smp_callin(void) { int cpuid = hard_smp_processor_id(); - if (cpu_test_and_set(cpuid, cpu_online_map)) { + if (cpu_online(cpuid)) { printk("??, cpu 0x%x already present??\n", cpuid); BUG(); } + set_cpu_online(cpuid, true); /* Turn on machine checks. */ wrmces(7); @@ -140,14 +138,19 @@ smp_callin(void) /* Get our local ticker going. */ smp_setup_percpu_timer(cpuid); + init_clockevent(); /* Call platform-specific callin, if specified */ - if (alpha_mv.smp_callin) alpha_mv.smp_callin(); + if (alpha_mv.smp_callin) + alpha_mv.smp_callin(); /* All kernel threads share the same mm context. */ atomic_inc(&init_mm.mm_count); current->active_mm = &init_mm; + /* inform the notifiers about the new cpu */ + notify_cpu_starting(cpuid); + /* Must have completely accurate bogos. */ local_irq_enable(); @@ -165,12 +168,12 @@ smp_callin(void) DBGS(("smp_callin: commencing CPU %d current %p active_mm %p\n", cpuid, current, current->active_mm)); - /* Do nothing. */ - cpu_idle(); + preempt_disable(); + cpu_startup_entry(CPUHP_ONLINE); } /* Wait until hwrpb->txrdy is clear for cpu. Return -1 on timeout. */ -static int __devinit +static int wait_for_txrdy (unsigned long cpumask) { unsigned long timeout; @@ -193,7 +196,7 @@ wait_for_txrdy (unsigned long cpumask) * Send a message to a secondary's console. "START" is one such * interesting message. ;-) */ -static void __init +static void send_secondary_console_msg(char *str, int cpuid) { struct percpu_struct *cpu; @@ -263,9 +266,10 @@ recv_secondary_console_msg(void) if (cnt <= 0 || cnt >= 80) strcpy(buf, "<<< BOGUS MSG >>>"); else { - cp1 = (char *) &cpu->ipc_buffer[11]; + cp1 = (char *) &cpu->ipc_buffer[1]; cp2 = buf; - strcpy(cp2, cp1); + memcpy(cp2, cp1, cnt); + cp2[cnt] = '\0'; while ((cp2 = strchr(cp2, '\r')) != 0) { *cp2 = ' '; @@ -284,7 +288,7 @@ recv_secondary_console_msg(void) /* * Convince the console to have a secondary cpu begin execution. */ -static int __init +static int secondary_cpu_start(int cpuid, struct task_struct *idle) { struct percpu_struct *cpu; @@ -355,25 +359,11 @@ secondary_cpu_start(int cpuid, struct task_struct *idle) /* * Bring one cpu online. */ -static int __cpuinit -smp_boot_one_cpu(int cpuid) +static int +smp_boot_one_cpu(int cpuid, struct task_struct *idle) { - struct task_struct *idle; unsigned long timeout; - /* Cook up an idler for this guy. Note that the address we - give to kernel_thread is irrelevant -- it's going to start - where HWRPB.CPU_restart says to start. But this gets all - the other task-y sort of data structures set up like we - wish. We can't use kernel_thread since we must avoid - rescheduling the child. */ - idle = fork_idle(cpuid); - if (IS_ERR(idle)) - panic("failed fork for CPU %d", cpuid); - - DBGS(("smp_boot_one_cpu: CPU %d state 0x%lx flags 0x%lx\n", - cpuid, idle->state, idle->flags)); - /* Signal the secondary to wait a moment. */ smp_secondary_alive = -1; @@ -435,7 +425,8 @@ setup_smp(void) ((char *)cpubase + i*hwrpb->processor_size); if ((cpu->flags & 0x1cc) == 0x1cc) { smp_num_probed++; - cpu_set(i, cpu_present_map); + set_cpu_possible(i, true); + set_cpu_present(i, true); cpu->pal_revision = boot_cpu_palrev; } @@ -448,8 +439,8 @@ setup_smp(void) smp_num_probed = 1; } - printk(KERN_INFO "SMP: %d CPUs probed -- cpu_present_map = %lx\n", - smp_num_probed, cpu_present_map.bits[0]); + printk(KERN_INFO "SMP: %d CPUs probed -- cpu_present_mask = %lx\n", + smp_num_probed, cpumask_bits(cpu_present_mask)[0]); } /* @@ -468,7 +459,8 @@ smp_prepare_cpus(unsigned int max_cpus) /* Nothing to do on a UP box, or when told not to. */ if (smp_num_probed == 1 || max_cpus == 0) { - cpu_present_map = cpumask_of_cpu(boot_cpuid); + init_cpu_possible(cpumask_of(boot_cpuid)); + init_cpu_present(cpumask_of(boot_cpuid)); printk(KERN_INFO "SMP mode deactivated.\n"); return; } @@ -478,15 +470,15 @@ smp_prepare_cpus(unsigned int max_cpus) smp_num_cpus = smp_num_probed; } -void __devinit +void smp_prepare_boot_cpu(void) { } -int __cpuinit -__cpu_up(unsigned int cpu) +int +__cpu_up(unsigned int cpu, struct task_struct *tidle) { - smp_boot_one_cpu(cpu); + smp_boot_one_cpu(cpu, tidle); return cpu_online(cpu) ? 0 : -ENOSYS; } @@ -508,35 +500,6 @@ smp_cpus_done(unsigned int max_cpus) ((bogosum + 2500) / (5000/HZ)) % 100); } - -void -smp_percpu_timer_interrupt(struct pt_regs *regs) -{ - struct pt_regs *old_regs; - int cpu = smp_processor_id(); - unsigned long user = user_mode(regs); - struct cpuinfo_alpha *data = &cpu_data[cpu]; - - old_regs = set_irq_regs(regs); - - /* Record kernel PC. */ - profile_tick(CPU_PROFILING); - - if (!--data->prof_counter) { - /* We need to make like a normal interrupt -- otherwise - timer interrupts ignore the global interrupt lock, - which would be a Bad Thing. */ - irq_enter(); - - update_process_times(user); - - data->prof_counter = data->prof_multiplier; - - irq_exit(); - } - set_irq_regs(old_regs); -} - int setup_profiling_timer(unsigned int multiplier) { @@ -545,64 +508,19 @@ setup_profiling_timer(unsigned int multiplier) static void -send_ipi_message(cpumask_t to_whom, enum ipi_message_type operation) +send_ipi_message(const struct cpumask *to_whom, enum ipi_message_type operation) { int i; mb(); - for_each_cpu_mask(i, to_whom) + for_each_cpu(i, to_whom) set_bit(operation, &ipi_data[i].bits); mb(); - for_each_cpu_mask(i, to_whom) + for_each_cpu(i, to_whom) wripir(i); } -/* Structure and data for smp_call_function. This is designed to - minimize static memory requirements. Plus it looks cleaner. */ - -struct smp_call_struct { - void (*func) (void *info); - void *info; - long wait; - atomic_t unstarted_count; - atomic_t unfinished_count; -}; - -static struct smp_call_struct *smp_call_function_data; - -/* Atomicly drop data into a shared pointer. The pointer is free if - it is initially locked. If retry, spin until free. */ - -static int -pointer_lock (void *lock, void *data, int retry) -{ - void *old, *tmp; - - mb(); - again: - /* Compare and swap with zero. */ - asm volatile ( - "1: ldq_l %0,%1\n" - " mov %3,%2\n" - " bne %0,2f\n" - " stq_c %2,%1\n" - " beq %2,1b\n" - "2:" - : "=&r"(old), "=m"(*(void **)lock), "=&r"(tmp) - : "r"(data) - : "memory"); - - if (old == 0) - return 0; - if (! retry) - return -EBUSY; - - while (*(void **)lock) - barrier(); - goto again; -} - void handle_ipi(struct pt_regs *regs) { @@ -627,36 +545,16 @@ handle_ipi(struct pt_regs *regs) switch (which) { case IPI_RESCHEDULE: - /* Reschedule callback. Everything to be done - is done by the interrupt return path. */ + scheduler_ipi(); break; case IPI_CALL_FUNC: - { - struct smp_call_struct *data; - void (*func)(void *info); - void *info; - int wait; - - data = smp_call_function_data; - func = data->func; - info = data->info; - wait = data->wait; - - /* Notify the sending CPU that the data has been - received, and execution is about to begin. */ - mb(); - atomic_dec (&data->unstarted_count); - - /* At this point the structure may be gone unless - wait is true. */ - (*func)(info); - - /* Notify the sending CPU that the task is done. */ - mb(); - if (wait) atomic_dec (&data->unfinished_count); + generic_smp_call_function_interrupt(); + break; + + case IPI_CALL_FUNC_SINGLE: + generic_smp_call_function_single_interrupt(); break; - } case IPI_CPU_STOP: halt(); @@ -685,117 +583,31 @@ smp_send_reschedule(int cpu) printk(KERN_WARNING "smp_send_reschedule: Sending IPI to self.\n"); #endif - send_ipi_message(cpumask_of_cpu(cpu), IPI_RESCHEDULE); + send_ipi_message(cpumask_of(cpu), IPI_RESCHEDULE); } void smp_send_stop(void) { - cpumask_t to_whom = cpu_possible_map; - cpu_clear(smp_processor_id(), to_whom); + cpumask_t to_whom; + cpumask_copy(&to_whom, cpu_possible_mask); + cpumask_clear_cpu(smp_processor_id(), &to_whom); #ifdef DEBUG_IPI_MSG if (hard_smp_processor_id() != boot_cpu_id) printk(KERN_WARNING "smp_send_stop: Not on boot cpu.\n"); #endif - send_ipi_message(to_whom, IPI_CPU_STOP); + send_ipi_message(&to_whom, IPI_CPU_STOP); } -/* - * Run a function on all other CPUs. - * <func> The function to run. This must be fast and non-blocking. - * <info> An arbitrary pointer to pass to the function. - * <retry> If true, keep retrying until ready. - * <wait> If true, wait until function has completed on other CPUs. - * [RETURNS] 0 on success, else a negative status code. - * - * Does not return until remote CPUs are nearly ready to execute <func> - * or are or have executed. - * You must not call this function with disabled interrupts or from a - * hardware interrupt handler or from a bottom half handler. - */ - -int -smp_call_function_on_cpu (void (*func) (void *info), void *info, int retry, - int wait, cpumask_t to_whom) +void arch_send_call_function_ipi_mask(const struct cpumask *mask) { - struct smp_call_struct data; - unsigned long timeout; - int num_cpus_to_call; - - /* Can deadlock when called with interrupts disabled */ - WARN_ON(irqs_disabled()); - - data.func = func; - data.info = info; - data.wait = wait; - - cpu_clear(smp_processor_id(), to_whom); - num_cpus_to_call = cpus_weight(to_whom); - - atomic_set(&data.unstarted_count, num_cpus_to_call); - atomic_set(&data.unfinished_count, num_cpus_to_call); - - /* Acquire the smp_call_function_data mutex. */ - if (pointer_lock(&smp_call_function_data, &data, retry)) - return -EBUSY; - - /* Send a message to the requested CPUs. */ - send_ipi_message(to_whom, IPI_CALL_FUNC); - - /* Wait for a minimal response. */ - timeout = jiffies + HZ; - while (atomic_read (&data.unstarted_count) > 0 - && time_before (jiffies, timeout)) - barrier(); - - /* If there's no response yet, log a message but allow a longer - * timeout period -- if we get a response this time, log - * a message saying when we got it.. - */ - if (atomic_read(&data.unstarted_count) > 0) { - long start_time = jiffies; - printk(KERN_ERR "%s: initial timeout -- trying long wait\n", - __FUNCTION__); - timeout = jiffies + 30 * HZ; - while (atomic_read(&data.unstarted_count) > 0 - && time_before(jiffies, timeout)) - barrier(); - if (atomic_read(&data.unstarted_count) <= 0) { - long delta = jiffies - start_time; - printk(KERN_ERR - "%s: response %ld.%ld seconds into long wait\n", - __FUNCTION__, delta / HZ, - (100 * (delta - ((delta / HZ) * HZ))) / HZ); - } - } - - /* We either got one or timed out -- clear the lock. */ - mb(); - smp_call_function_data = NULL; - - /* - * If after both the initial and long timeout periods we still don't - * have a response, something is very wrong... - */ - BUG_ON(atomic_read (&data.unstarted_count) > 0); - - /* Wait for a complete response, if needed. */ - if (wait) { - while (atomic_read (&data.unfinished_count) > 0) - barrier(); - } - - return 0; + send_ipi_message(mask, IPI_CALL_FUNC); } -EXPORT_SYMBOL(smp_call_function_on_cpu); -int -smp_call_function (void (*func) (void *info), void *info, int retry, int wait) +void arch_send_call_function_single_ipi(int cpu) { - return smp_call_function_on_cpu (func, info, retry, wait, - cpu_online_map); + send_ipi_message(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE); } -EXPORT_SYMBOL(smp_call_function); static void ipi_imb(void *ignored) @@ -807,7 +619,7 @@ void smp_imb(void) { /* Must wait other processors to flush their icache before continue. */ - if (on_each_cpu(ipi_imb, NULL, 1, 1)) + if (on_each_cpu(ipi_imb, NULL, 1)) printk(KERN_CRIT "smp_imb: timed out\n"); } EXPORT_SYMBOL(smp_imb); @@ -823,7 +635,7 @@ flush_tlb_all(void) { /* Although we don't have any data to pass, we do want to synchronize with the other processors. */ - if (on_each_cpu(ipi_flush_tlb_all, NULL, 1, 1)) { + if (on_each_cpu(ipi_flush_tlb_all, NULL, 1)) { printk(KERN_CRIT "flush_tlb_all: timed out\n"); } } @@ -860,7 +672,7 @@ flush_tlb_mm(struct mm_struct *mm) } } - if (smp_call_function(ipi_flush_tlb_mm, mm, 1, 1)) { + if (smp_call_function(ipi_flush_tlb_mm, mm, 1)) { printk(KERN_CRIT "flush_tlb_mm: timed out\n"); } @@ -913,7 +725,7 @@ flush_tlb_page(struct vm_area_struct *vma, unsigned long addr) data.mm = mm; data.addr = addr; - if (smp_call_function(ipi_flush_tlb_page, &data, 1, 1)) { + if (smp_call_function(ipi_flush_tlb_page, &data, 1)) { printk(KERN_CRIT "flush_tlb_page: timed out\n"); } @@ -965,7 +777,7 @@ flush_icache_user_range(struct vm_area_struct *vma, struct page *page, } } - if (smp_call_function(ipi_flush_icache_page, mm, 1, 1)) { + if (smp_call_function(ipi_flush_icache_page, mm, 1)) { printk(KERN_CRIT "flush_icache_page: timed out\n"); } diff --git a/arch/alpha/kernel/srm_env.c b/arch/alpha/kernel/srm_env.c index f7dd081d57f..ffe996a54fa 100644 --- a/arch/alpha/kernel/srm_env.c +++ b/arch/alpha/kernel/srm_env.c @@ -4,9 +4,8 @@ * * (C) 2001,2002,2006 by Jan-Benedict Glaw <jbglaw@lug-owl.de> * - * This driver is at all a modified version of Erik Mouw's - * Documentation/DocBook/procfs_example.c, so: thank - * you, Erik! He can be reached via email at + * This driver is a modified version of Erik Mouw's example proc + * interface, so: thank you, Erik! He can be reached via email at * <J.A.K.Mouw@its.tudelft.nl>. It is based on an idea * provided by DEC^WCompaq^WIntel's "Jumpstart" CD. They * included a patch like this as well. Thanks for idea! @@ -30,9 +29,11 @@ */ #include <linux/kernel.h> +#include <linux/gfp.h> #include <linux/module.h> #include <linux/init.h> #include <linux/proc_fs.h> +#include <linux/seq_file.h> #include <asm/console.h> #include <asm/uaccess.h> #include <asm/machvec.h> @@ -50,13 +51,11 @@ MODULE_LICENSE("GPL"); typedef struct _srm_env { char *name; unsigned long id; - struct proc_dir_entry *proc_entry; } srm_env_t; static struct proc_dir_entry *base_dir; static struct proc_dir_entry *named_dir; static struct proc_dir_entry *numbered_dir; -static char number[256][4]; static srm_env_t srm_named_entries[] = { { "auto_action", ENV_AUTO_ACTION }, @@ -76,45 +75,41 @@ static srm_env_t srm_named_entries[] = { { "tty_dev", ENV_TTY_DEV }, { NULL, 0 }, }; -static srm_env_t srm_numbered_entries[256]; - -static int -srm_env_read(char *page, char **start, off_t off, int count, int *eof, - void *data) +static int srm_env_proc_show(struct seq_file *m, void *v) { - int nbytes; unsigned long ret; - srm_env_t *entry; + unsigned long id = (unsigned long)m->private; + char *page; - if (off != 0) { - *eof = 1; - return 0; - } + page = (char *)__get_free_page(GFP_USER); + if (!page) + return -ENOMEM; - entry = (srm_env_t *) data; - ret = callback_getenv(entry->id, page, count); + ret = callback_getenv(id, page, PAGE_SIZE); if ((ret >> 61) == 0) { - nbytes = (int) ret; - *eof = 1; + seq_write(m, page, ret); + ret = 0; } else - nbytes = -EFAULT; + ret = -EFAULT; + free_page((unsigned long)page); + return ret; +} - return nbytes; +static int srm_env_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, srm_env_proc_show, PDE_DATA(inode)); } -static int -srm_env_write(struct file *file, const char __user *buffer, unsigned long count, - void *data) +static ssize_t srm_env_proc_write(struct file *file, const char __user *buffer, + size_t count, loff_t *pos) { int res; - srm_env_t *entry; + unsigned long id = (unsigned long)PDE_DATA(file_inode(file)); char *buf = (char *) __get_free_page(GFP_USER); unsigned long ret1, ret2; - entry = (srm_env_t *) data; - if (!buf) return -ENOMEM; @@ -127,7 +122,7 @@ srm_env_write(struct file *file, const char __user *buffer, unsigned long count, goto out; buf[count] = '\0'; - ret1 = callback_setenv(entry->id, buf, count); + ret1 = callback_setenv(id, buf, count); if ((ret1 >> 61) == 0) { do ret2 = callback_save_env(); @@ -140,51 +135,14 @@ srm_env_write(struct file *file, const char __user *buffer, unsigned long count, return res; } -static void -srm_env_cleanup(void) -{ - srm_env_t *entry; - unsigned long var_num; - - if (base_dir) { - /* - * Remove named entries - */ - if (named_dir) { - entry = srm_named_entries; - while (entry->name != NULL && entry->id != 0) { - if (entry->proc_entry) { - remove_proc_entry(entry->name, - named_dir); - entry->proc_entry = NULL; - } - entry++; - } - remove_proc_entry(NAMED_DIR, base_dir); - } - - /* - * Remove numbered entries - */ - if (numbered_dir) { - for (var_num = 0; var_num <= 255; var_num++) { - entry = &srm_numbered_entries[var_num]; - - if (entry->proc_entry) { - remove_proc_entry(entry->name, - numbered_dir); - entry->proc_entry = NULL; - entry->name = NULL; - } - } - remove_proc_entry(NUMBERED_DIR, base_dir); - } - - remove_proc_entry(BASE_DIR, NULL); - } - - return; -} +static const struct file_operations srm_env_proc_fops = { + .owner = THIS_MODULE, + .open = srm_env_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .write = srm_env_proc_write, +}; static int __init srm_env_init(void) @@ -199,26 +157,19 @@ srm_env_init(void) printk(KERN_INFO "%s: This Alpha system doesn't " "know about SRM (or you've booted " "SRM->MILO->Linux, which gets " - "misdetected)...\n", __FUNCTION__); + "misdetected)...\n", __func__); return -ENODEV; } /* - * Init numbers - */ - for (var_num = 0; var_num <= 255; var_num++) - sprintf(number[var_num], "%ld", var_num); - - /* * Create base directory */ base_dir = proc_mkdir(BASE_DIR, NULL); if (!base_dir) { printk(KERN_ERR "Couldn't create base dir /proc/%s\n", BASE_DIR); - goto cleanup; + return -ENOMEM; } - base_dir->owner = THIS_MODULE; /* * Create per-name subdirectory @@ -229,7 +180,6 @@ srm_env_init(void) BASE_DIR, NAMED_DIR); goto cleanup; } - named_dir->owner = THIS_MODULE; /* * Create per-number subdirectory @@ -241,23 +191,15 @@ srm_env_init(void) goto cleanup; } - numbered_dir->owner = THIS_MODULE; /* * Create all named nodes */ entry = srm_named_entries; while (entry->name && entry->id) { - entry->proc_entry = create_proc_entry(entry->name, - 0644, named_dir); - if (!entry->proc_entry) + if (!proc_create_data(entry->name, 0644, named_dir, + &srm_env_proc_fops, (void *)entry->id)) goto cleanup; - - entry->proc_entry->data = (void *) entry; - entry->proc_entry->owner = THIS_MODULE; - entry->proc_entry->read_proc = srm_env_read; - entry->proc_entry->write_proc = srm_env_write; - entry++; } @@ -265,19 +207,11 @@ srm_env_init(void) * Create all numbered nodes */ for (var_num = 0; var_num <= 255; var_num++) { - entry = &srm_numbered_entries[var_num]; - entry->name = number[var_num]; - - entry->proc_entry = create_proc_entry(entry->name, - 0644, numbered_dir); - if (!entry->proc_entry) + char name[4]; + sprintf(name, "%ld", var_num); + if (!proc_create_data(name, 0644, numbered_dir, + &srm_env_proc_fops, (void *)var_num)) goto cleanup; - - entry->id = var_num; - entry->proc_entry->data = (void *) entry; - entry->proc_entry->owner = THIS_MODULE; - entry->proc_entry->read_proc = srm_env_read; - entry->proc_entry->write_proc = srm_env_write; } printk(KERN_INFO "%s: version %s loaded successfully\n", NAME, @@ -286,18 +220,15 @@ srm_env_init(void) return 0; cleanup: - srm_env_cleanup(); - + remove_proc_subtree(BASE_DIR, NULL); return -ENOMEM; } static void __exit srm_env_exit(void) { - srm_env_cleanup(); + remove_proc_subtree(BASE_DIR, NULL); printk(KERN_INFO "%s: unloaded successfully\n", NAME); - - return; } module_init(srm_env_init); diff --git a/arch/alpha/kernel/srmcons.c b/arch/alpha/kernel/srmcons.c index 783f4e50c11..6f01d9ad7b8 100644 --- a/arch/alpha/kernel/srmcons.c +++ b/arch/alpha/kernel/srmcons.c @@ -30,10 +30,9 @@ static int srm_is_registered_console = 0; #define MAX_SRM_CONSOLE_DEVICES 1 /* only support 1 console device */ struct srmcons_private { - struct tty_struct *tty; + struct tty_port port; struct timer_list timer; - spinlock_t lock; -}; +} srmcons_singleton; typedef union _srmcons_result { struct { @@ -45,7 +44,7 @@ typedef union _srmcons_result { /* called with callback_lock held */ static int -srmcons_do_receive_chars(struct tty_struct *tty) +srmcons_do_receive_chars(struct tty_port *port) { srmcons_result result; int count = 0, loops = 0; @@ -53,13 +52,13 @@ srmcons_do_receive_chars(struct tty_struct *tty) do { result.as_long = callback_getc(0); if (result.bits.status < 2) { - tty_insert_flip_char(tty, (char)result.bits.c, 0); + tty_insert_flip_char(port, (char)result.bits.c, 0); count++; } } while((result.bits.status & 1) && (++loops < 10)); if (count) - tty_schedule_flip(tty); + tty_schedule_flip(port); return count; } @@ -68,29 +67,28 @@ static void srmcons_receive_chars(unsigned long data) { struct srmcons_private *srmconsp = (struct srmcons_private *)data; + struct tty_port *port = &srmconsp->port; unsigned long flags; int incr = 10; local_irq_save(flags); if (spin_trylock(&srmcons_callback_lock)) { - if (!srmcons_do_receive_chars(srmconsp->tty)) + if (!srmcons_do_receive_chars(port)) incr = 100; spin_unlock(&srmcons_callback_lock); } - spin_lock(&srmconsp->lock); - if (srmconsp->tty) { - srmconsp->timer.expires = jiffies + incr; - add_timer(&srmconsp->timer); - } - spin_unlock(&srmconsp->lock); + spin_lock(&port->lock); + if (port->tty) + mod_timer(&srmconsp->timer, jiffies + incr); + spin_unlock(&port->lock); local_irq_restore(flags); } /* called with callback_lock held */ static int -srmcons_do_write(struct tty_struct *tty, const char *buf, int count) +srmcons_do_write(struct tty_port *port, const char *buf, int count) { static char str_cr[1] = "\r"; long c, remaining = count; @@ -115,10 +113,10 @@ srmcons_do_write(struct tty_struct *tty, const char *buf, int count) cur += result.bits.c; /* - * Check for pending input iff a tty was provided + * Check for pending input iff a tty port was provided */ - if (tty) - srmcons_do_receive_chars(tty); + if (port) + srmcons_do_receive_chars(port); } while (need_cr) { @@ -137,7 +135,7 @@ srmcons_write(struct tty_struct *tty, unsigned long flags; spin_lock_irqsave(&srmcons_callback_lock, flags); - srmcons_do_write(tty, (const char *) buf, count); + srmcons_do_write(tty->port, (const char *) buf, count); spin_unlock_irqrestore(&srmcons_callback_lock, flags); return count; @@ -156,56 +154,22 @@ srmcons_chars_in_buffer(struct tty_struct *tty) } static int -srmcons_get_private_struct(struct srmcons_private **ps) -{ - static struct srmcons_private *srmconsp = NULL; - static DEFINE_SPINLOCK(srmconsp_lock); - unsigned long flags; - int retval = 0; - - if (srmconsp == NULL) { - srmconsp = kmalloc(sizeof(*srmconsp), GFP_KERNEL); - spin_lock_irqsave(&srmconsp_lock, flags); - - if (srmconsp == NULL) - retval = -ENOMEM; - else { - srmconsp->tty = NULL; - spin_lock_init(&srmconsp->lock); - init_timer(&srmconsp->timer); - } - - spin_unlock_irqrestore(&srmconsp_lock, flags); - } - - *ps = srmconsp; - return retval; -} - -static int srmcons_open(struct tty_struct *tty, struct file *filp) { - struct srmcons_private *srmconsp; + struct srmcons_private *srmconsp = &srmcons_singleton; + struct tty_port *port = &srmconsp->port; unsigned long flags; - int retval; - - retval = srmcons_get_private_struct(&srmconsp); - if (retval) - return retval; - spin_lock_irqsave(&srmconsp->lock, flags); + spin_lock_irqsave(&port->lock, flags); - if (!srmconsp->tty) { + if (!port->tty) { tty->driver_data = srmconsp; - - srmconsp->tty = tty; - srmconsp->timer.function = srmcons_receive_chars; - srmconsp->timer.data = (unsigned long)srmconsp; - srmconsp->timer.expires = jiffies + 10; - add_timer(&srmconsp->timer); + tty->port = port; + port->tty = tty; /* XXX proper refcounting */ + mod_timer(&srmconsp->timer, jiffies + 10); } - spin_unlock_irqrestore(&srmconsp->lock, flags); + spin_unlock_irqrestore(&port->lock, flags); return 0; } @@ -214,16 +178,17 @@ static void srmcons_close(struct tty_struct *tty, struct file *filp) { struct srmcons_private *srmconsp = tty->driver_data; + struct tty_port *port = &srmconsp->port; unsigned long flags; - spin_lock_irqsave(&srmconsp->lock, flags); + spin_lock_irqsave(&port->lock, flags); if (tty->count == 1) { - srmconsp->tty = NULL; + port->tty = NULL; del_timer(&srmconsp->timer); } - spin_unlock_irqrestore(&srmconsp->lock, flags); + spin_unlock_irqrestore(&port->lock, flags); } @@ -240,6 +205,8 @@ static const struct tty_operations srmcons_ops = { static int __init srmcons_init(void) { + setup_timer(&srmcons_singleton.timer, srmcons_receive_chars, + (unsigned long)&srmcons_singleton); if (srm_is_registered_console) { struct tty_driver *driver; int err; @@ -247,6 +214,9 @@ srmcons_init(void) driver = alloc_tty_driver(MAX_SRM_CONSOLE_DEVICES); if (!driver) return -ENOMEM; + + tty_port_init(&srmcons_singleton.port); + driver->driver_name = "srm"; driver->name = "srm"; driver->major = 0; /* dynamic */ @@ -255,9 +225,11 @@ srmcons_init(void) driver->subtype = SYSTEM_TYPE_SYSCONS; driver->init_termios = tty_std_termios; tty_set_operations(driver, &srmcons_ops); + tty_port_link_device(&srmcons_singleton.port, driver, 0); err = tty_register_driver(driver); if (err) { put_tty_driver(driver); + tty_port_destroy(&srmcons_singleton.port); return err; } srmcons_driver = driver; diff --git a/arch/alpha/kernel/sys_alcor.c b/arch/alpha/kernel/sys_alcor.c index d187d01d2a1..118dc6af180 100644 --- a/arch/alpha/kernel/sys_alcor.c +++ b/arch/alpha/kernel/sys_alcor.c @@ -18,7 +18,6 @@ #include <linux/bitops.h> #include <asm/ptrace.h> -#include <asm/system.h> #include <asm/io.h> #include <asm/dma.h> #include <asm/mmu_context.h> @@ -44,59 +43,42 @@ alcor_update_irq_hw(unsigned long mask) } static inline void -alcor_enable_irq(unsigned int irq) +alcor_enable_irq(struct irq_data *d) { - alcor_update_irq_hw(cached_irq_mask |= 1UL << (irq - 16)); + alcor_update_irq_hw(cached_irq_mask |= 1UL << (d->irq - 16)); } static void -alcor_disable_irq(unsigned int irq) +alcor_disable_irq(struct irq_data *d) { - alcor_update_irq_hw(cached_irq_mask &= ~(1UL << (irq - 16))); + alcor_update_irq_hw(cached_irq_mask &= ~(1UL << (d->irq - 16))); } static void -alcor_mask_and_ack_irq(unsigned int irq) +alcor_mask_and_ack_irq(struct irq_data *d) { - alcor_disable_irq(irq); + alcor_disable_irq(d); /* On ALCOR/XLT, need to dismiss interrupt via GRU. */ - *(vuip)GRU_INT_CLEAR = 1 << (irq - 16); mb(); + *(vuip)GRU_INT_CLEAR = 1 << (d->irq - 16); mb(); *(vuip)GRU_INT_CLEAR = 0; mb(); } -static unsigned int -alcor_startup_irq(unsigned int irq) -{ - alcor_enable_irq(irq); - return 0; -} - static void -alcor_isa_mask_and_ack_irq(unsigned int irq) +alcor_isa_mask_and_ack_irq(struct irq_data *d) { - i8259a_mask_and_ack_irq(irq); + i8259a_mask_and_ack_irq(d); /* On ALCOR/XLT, need to dismiss interrupt via GRU. */ *(vuip)GRU_INT_CLEAR = 0x80000000; mb(); *(vuip)GRU_INT_CLEAR = 0; mb(); } -static void -alcor_end_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - alcor_enable_irq(irq); -} - -static struct hw_interrupt_type alcor_irq_type = { - .typename = "ALCOR", - .startup = alcor_startup_irq, - .shutdown = alcor_disable_irq, - .enable = alcor_enable_irq, - .disable = alcor_disable_irq, - .ack = alcor_mask_and_ack_irq, - .end = alcor_end_irq, +static struct irq_chip alcor_irq_type = { + .name = "ALCOR", + .irq_unmask = alcor_enable_irq, + .irq_mask = alcor_disable_irq, + .irq_mask_ack = alcor_mask_and_ack_irq, }; static void @@ -142,10 +124,10 @@ alcor_init_irq(void) on while IRQ probing. */ if (i >= 16+20 && i <= 16+30) continue; - irq_desc[i].status = IRQ_DISABLED | IRQ_LEVEL; - irq_desc[i].chip = &alcor_irq_type; + irq_set_chip_and_handler(i, &alcor_irq_type, handle_level_irq); + irq_set_status_flags(i, IRQ_LEVEL); } - i8259a_irq_type.ack = alcor_isa_mask_and_ack_irq; + i8259a_irq_type.irq_ack = alcor_isa_mask_and_ack_irq; init_i8259a_irqs(); common_init_isa_dma(); @@ -200,7 +182,7 @@ alcor_init_irq(void) */ static int __init -alcor_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +alcor_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[7][5] __initdata = { /*INT INTA INTB INTC INTD */ @@ -259,7 +241,7 @@ alcor_init_pci(void) if (dev && dev->devfn == PCI_DEVFN(6,0)) { alpha_mv.sys.cia.gru_int_req_bits = XLT_GRU_INT_REQ_BITS; printk(KERN_INFO "%s: Detected AS500 or XLT motherboard.\n", - __FUNCTION__); + __func__); } pci_dev_put(dev); } diff --git a/arch/alpha/kernel/sys_cabriolet.c b/arch/alpha/kernel/sys_cabriolet.c index ace475c124f..4c50f8f40cb 100644 --- a/arch/alpha/kernel/sys_cabriolet.c +++ b/arch/alpha/kernel/sys_cabriolet.c @@ -18,7 +18,6 @@ #include <linux/bitops.h> #include <asm/ptrace.h> -#include <asm/system.h> #include <asm/dma.h> #include <asm/irq.h> #include <asm/mmu_context.h> @@ -33,7 +32,7 @@ #include "irq_impl.h" #include "pci_impl.h" #include "machvec_impl.h" - +#include "pc873xx.h" /* Note mask bit is true for DISABLED irqs. */ static unsigned long cached_irq_mask = ~0UL; @@ -46,39 +45,22 @@ cabriolet_update_irq_hw(unsigned int irq, unsigned long mask) } static inline void -cabriolet_enable_irq(unsigned int irq) +cabriolet_enable_irq(struct irq_data *d) { - cabriolet_update_irq_hw(irq, cached_irq_mask &= ~(1UL << irq)); + cabriolet_update_irq_hw(d->irq, cached_irq_mask &= ~(1UL << d->irq)); } static void -cabriolet_disable_irq(unsigned int irq) +cabriolet_disable_irq(struct irq_data *d) { - cabriolet_update_irq_hw(irq, cached_irq_mask |= 1UL << irq); -} - -static unsigned int -cabriolet_startup_irq(unsigned int irq) -{ - cabriolet_enable_irq(irq); - return 0; /* never anything pending */ -} - -static void -cabriolet_end_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - cabriolet_enable_irq(irq); + cabriolet_update_irq_hw(d->irq, cached_irq_mask |= 1UL << d->irq); } -static struct hw_interrupt_type cabriolet_irq_type = { - .typename = "CABRIOLET", - .startup = cabriolet_startup_irq, - .shutdown = cabriolet_disable_irq, - .enable = cabriolet_enable_irq, - .disable = cabriolet_disable_irq, - .ack = cabriolet_disable_irq, - .end = cabriolet_end_irq, +static struct irq_chip cabriolet_irq_type = { + .name = "CABRIOLET", + .irq_unmask = cabriolet_enable_irq, + .irq_mask = cabriolet_disable_irq, + .irq_mask_ack = cabriolet_disable_irq, }; static void @@ -122,8 +104,9 @@ common_init_irq(void (*srm_dev_int)(unsigned long v)) outb(0xff, 0x806); for (i = 16; i < 35; ++i) { - irq_desc[i].status = IRQ_DISABLED | IRQ_LEVEL; - irq_desc[i].chip = &cabriolet_irq_type; + irq_set_chip_and_handler(i, &cabriolet_irq_type, + handle_level_irq); + irq_set_status_flags(i, IRQ_LEVEL); } } @@ -191,7 +174,7 @@ pc164_init_irq(void) */ static inline int __init -eb66p_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +eb66p_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[5][5] __initdata = { /*INT INTA INTB INTC INTD */ @@ -221,7 +204,7 @@ eb66p_map_irq(struct pci_dev *dev, u8 slot, u8 pin) */ static inline int __init -cabriolet_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +cabriolet_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[5][5] __initdata = { /*INT INTA INTB INTC INTD */ @@ -236,17 +219,30 @@ cabriolet_map_irq(struct pci_dev *dev, u8 slot, u8 pin) } static inline void __init +cabriolet_enable_ide(void) +{ + if (pc873xx_probe() == -1) { + printk(KERN_ERR "Probing for PC873xx Super IO chip failed.\n"); + } else { + printk(KERN_INFO "Found %s Super IO chip at 0x%x\n", + pc873xx_get_model(), pc873xx_get_base()); + + pc873xx_enable_ide(); + } +} + +static inline void __init cabriolet_init_pci(void) { common_init_pci(); - ns87312_enable_ide(0x398); + cabriolet_enable_ide(); } static inline void __init cia_cab_init_pci(void) { cia_init_pci(); - ns87312_enable_ide(0x398); + cabriolet_enable_ide(); } /* @@ -292,7 +288,7 @@ cia_cab_init_pci(void) */ static inline int __init -alphapc164_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +alphapc164_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[7][5] __initdata = { /*INT INTA INTB INTC INTD */ diff --git a/arch/alpha/kernel/sys_dp264.c b/arch/alpha/kernel/sys_dp264.c index c71b0fd7a61..6c35159bc00 100644 --- a/arch/alpha/kernel/sys_dp264.c +++ b/arch/alpha/kernel/sys_dp264.c @@ -21,7 +21,6 @@ #include <linux/bitops.h> #include <asm/ptrace.h> -#include <asm/system.h> #include <asm/dma.h> #include <asm/irq.h> #include <asm/mmu_context.h> @@ -98,69 +97,41 @@ tsunami_update_irq_hw(unsigned long mask) } static void -dp264_enable_irq(unsigned int irq) +dp264_enable_irq(struct irq_data *d) { spin_lock(&dp264_irq_lock); - cached_irq_mask |= 1UL << irq; + cached_irq_mask |= 1UL << d->irq; tsunami_update_irq_hw(cached_irq_mask); spin_unlock(&dp264_irq_lock); } static void -dp264_disable_irq(unsigned int irq) +dp264_disable_irq(struct irq_data *d) { spin_lock(&dp264_irq_lock); - cached_irq_mask &= ~(1UL << irq); + cached_irq_mask &= ~(1UL << d->irq); tsunami_update_irq_hw(cached_irq_mask); spin_unlock(&dp264_irq_lock); } -static unsigned int -dp264_startup_irq(unsigned int irq) -{ - dp264_enable_irq(irq); - return 0; /* never anything pending */ -} - -static void -dp264_end_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - dp264_enable_irq(irq); -} - static void -clipper_enable_irq(unsigned int irq) +clipper_enable_irq(struct irq_data *d) { spin_lock(&dp264_irq_lock); - cached_irq_mask |= 1UL << (irq - 16); + cached_irq_mask |= 1UL << (d->irq - 16); tsunami_update_irq_hw(cached_irq_mask); spin_unlock(&dp264_irq_lock); } static void -clipper_disable_irq(unsigned int irq) +clipper_disable_irq(struct irq_data *d) { spin_lock(&dp264_irq_lock); - cached_irq_mask &= ~(1UL << (irq - 16)); + cached_irq_mask &= ~(1UL << (d->irq - 16)); tsunami_update_irq_hw(cached_irq_mask); spin_unlock(&dp264_irq_lock); } -static unsigned int -clipper_startup_irq(unsigned int irq) -{ - clipper_enable_irq(irq); - return 0; /* never anything pending */ -} - -static void -clipper_end_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - clipper_enable_irq(irq); -} - static void cpu_set_irq_affinity(unsigned int irq, cpumask_t affinity) { @@ -168,7 +139,7 @@ cpu_set_irq_affinity(unsigned int irq, cpumask_t affinity) for (cpu = 0; cpu < 4; cpu++) { unsigned long aff = cpu_irq_affinity[cpu]; - if (cpu_isset(cpu, affinity)) + if (cpumask_test_cpu(cpu, &affinity)) aff |= 1UL << irq; else aff &= ~(1UL << irq); @@ -176,52 +147,49 @@ cpu_set_irq_affinity(unsigned int irq, cpumask_t affinity) } } -static void -dp264_set_affinity(unsigned int irq, cpumask_t affinity) -{ +static int +dp264_set_affinity(struct irq_data *d, const struct cpumask *affinity, + bool force) +{ spin_lock(&dp264_irq_lock); - cpu_set_irq_affinity(irq, affinity); + cpu_set_irq_affinity(d->irq, *affinity); tsunami_update_irq_hw(cached_irq_mask); spin_unlock(&dp264_irq_lock); + + return 0; } -static void -clipper_set_affinity(unsigned int irq, cpumask_t affinity) -{ +static int +clipper_set_affinity(struct irq_data *d, const struct cpumask *affinity, + bool force) +{ spin_lock(&dp264_irq_lock); - cpu_set_irq_affinity(irq - 16, affinity); + cpu_set_irq_affinity(d->irq - 16, *affinity); tsunami_update_irq_hw(cached_irq_mask); spin_unlock(&dp264_irq_lock); + + return 0; } -static struct hw_interrupt_type dp264_irq_type = { - .typename = "DP264", - .startup = dp264_startup_irq, - .shutdown = dp264_disable_irq, - .enable = dp264_enable_irq, - .disable = dp264_disable_irq, - .ack = dp264_disable_irq, - .end = dp264_end_irq, - .set_affinity = dp264_set_affinity, +static struct irq_chip dp264_irq_type = { + .name = "DP264", + .irq_unmask = dp264_enable_irq, + .irq_mask = dp264_disable_irq, + .irq_mask_ack = dp264_disable_irq, + .irq_set_affinity = dp264_set_affinity, }; -static struct hw_interrupt_type clipper_irq_type = { - .typename = "CLIPPER", - .startup = clipper_startup_irq, - .shutdown = clipper_disable_irq, - .enable = clipper_enable_irq, - .disable = clipper_disable_irq, - .ack = clipper_disable_irq, - .end = clipper_end_irq, - .set_affinity = clipper_set_affinity, +static struct irq_chip clipper_irq_type = { + .name = "CLIPPER", + .irq_unmask = clipper_enable_irq, + .irq_mask = clipper_disable_irq, + .irq_mask_ack = clipper_disable_irq, + .irq_set_affinity = clipper_set_affinity, }; static void dp264_device_interrupt(unsigned long vector) { -#if 1 - printk("dp264_device_interrupt: NOT IMPLEMENTED YET!! \n"); -#else unsigned long pld; unsigned int i; @@ -239,12 +207,7 @@ dp264_device_interrupt(unsigned long vector) isa_device_interrupt(vector); else handle_irq(16 + i); -#if 0 - TSUNAMI_cchip->dir0.csr = 1UL << i; mb(); - tmp = TSUNAMI_cchip->dir0.csr; -#endif } -#endif } static void @@ -294,12 +257,12 @@ clipper_srm_device_interrupt(unsigned long vector) } static void __init -init_tsunami_irqs(struct hw_interrupt_type * ops, int imin, int imax) +init_tsunami_irqs(struct irq_chip * ops, int imin, int imax) { long i; for (i = imin; i <= imax; ++i) { - irq_desc[i].status = IRQ_DISABLED | IRQ_LEVEL; - irq_desc[i].chip = ops; + irq_set_chip_and_handler(i, ops, handle_level_irq); + irq_set_status_flags(i, IRQ_LEVEL); } } @@ -394,7 +357,7 @@ clipper_init_irq(void) */ static int __init -isa_irq_fixup(struct pci_dev *dev, int irq) +isa_irq_fixup(const struct pci_dev *dev, int irq) { u8 irq8; @@ -410,7 +373,7 @@ isa_irq_fixup(struct pci_dev *dev, int irq) } static int __init -dp264_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +dp264_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[6][5] __initdata = { /*INT INTA INTB INTC INTD */ @@ -432,7 +395,7 @@ dp264_map_irq(struct pci_dev *dev, u8 slot, u8 pin) } static int __init -monet_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +monet_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[13][5] __initdata = { /*INT INTA INTB INTC INTD */ @@ -481,7 +444,7 @@ monet_swizzle(struct pci_dev *dev, u8 *pinp) slot = PCI_SLOT(dev->devfn); break; } - pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn)) ; + pin = pci_swizzle_interrupt_pin(dev, pin); /* Move up the chain of bridges. */ dev = dev->bus->self; @@ -494,7 +457,7 @@ monet_swizzle(struct pci_dev *dev, u8 *pinp) } static int __init -webbrick_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +webbrick_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[13][5] __initdata = { /*INT INTA INTB INTC INTD */ @@ -516,7 +479,7 @@ webbrick_map_irq(struct pci_dev *dev, u8 slot, u8 pin) } static int __init -clipper_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +clipper_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[7][5] __initdata = { /*INT INTA INTB INTC INTD */ diff --git a/arch/alpha/kernel/sys_eb64p.c b/arch/alpha/kernel/sys_eb64p.c index 9c5a306dc0e..ad40a425e84 100644 --- a/arch/alpha/kernel/sys_eb64p.c +++ b/arch/alpha/kernel/sys_eb64p.c @@ -17,7 +17,6 @@ #include <linux/bitops.h> #include <asm/ptrace.h> -#include <asm/system.h> #include <asm/dma.h> #include <asm/irq.h> #include <asm/mmu_context.h> @@ -44,39 +43,22 @@ eb64p_update_irq_hw(unsigned int irq, unsigned long mask) } static inline void -eb64p_enable_irq(unsigned int irq) +eb64p_enable_irq(struct irq_data *d) { - eb64p_update_irq_hw(irq, cached_irq_mask &= ~(1 << irq)); + eb64p_update_irq_hw(d->irq, cached_irq_mask &= ~(1 << d->irq)); } static void -eb64p_disable_irq(unsigned int irq) +eb64p_disable_irq(struct irq_data *d) { - eb64p_update_irq_hw(irq, cached_irq_mask |= 1 << irq); + eb64p_update_irq_hw(d->irq, cached_irq_mask |= 1 << d->irq); } -static unsigned int -eb64p_startup_irq(unsigned int irq) -{ - eb64p_enable_irq(irq); - return 0; /* never anything pending */ -} - -static void -eb64p_end_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - eb64p_enable_irq(irq); -} - -static struct hw_interrupt_type eb64p_irq_type = { - .typename = "EB64P", - .startup = eb64p_startup_irq, - .shutdown = eb64p_disable_irq, - .enable = eb64p_enable_irq, - .disable = eb64p_disable_irq, - .ack = eb64p_disable_irq, - .end = eb64p_end_irq, +static struct irq_chip eb64p_irq_type = { + .name = "EB64P", + .irq_unmask = eb64p_enable_irq, + .irq_mask = eb64p_disable_irq, + .irq_mask_ack = eb64p_disable_irq, }; static void @@ -135,9 +117,9 @@ eb64p_init_irq(void) init_i8259a_irqs(); for (i = 16; i < 32; ++i) { - irq_desc[i].status = IRQ_DISABLED | IRQ_LEVEL; - irq_desc[i].chip = &eb64p_irq_type; - } + irq_set_chip_and_handler(i, &eb64p_irq_type, handle_level_irq); + irq_set_status_flags(i, IRQ_LEVEL); + } common_init_isa_dma(); setup_irq(16+5, &isa_cascade_irqaction); @@ -186,7 +168,7 @@ eb64p_init_irq(void) */ static int __init -eb64p_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +eb64p_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[5][5] __initdata = { /*INT INTA INTB INTC INTD */ diff --git a/arch/alpha/kernel/sys_eiger.c b/arch/alpha/kernel/sys_eiger.c index 7ef3b6fb370..79d69d7f63f 100644 --- a/arch/alpha/kernel/sys_eiger.c +++ b/arch/alpha/kernel/sys_eiger.c @@ -18,7 +18,6 @@ #include <linux/bitops.h> #include <asm/ptrace.h> -#include <asm/system.h> #include <asm/dma.h> #include <asm/irq.h> #include <asm/mmu_context.h> @@ -51,43 +50,28 @@ eiger_update_irq_hw(unsigned long irq, unsigned long mask) } static inline void -eiger_enable_irq(unsigned int irq) +eiger_enable_irq(struct irq_data *d) { + unsigned int irq = d->irq; unsigned long mask; mask = (cached_irq_mask[irq >= 64] &= ~(1UL << (irq & 63))); eiger_update_irq_hw(irq, mask); } static void -eiger_disable_irq(unsigned int irq) +eiger_disable_irq(struct irq_data *d) { + unsigned int irq = d->irq; unsigned long mask; mask = (cached_irq_mask[irq >= 64] |= 1UL << (irq & 63)); eiger_update_irq_hw(irq, mask); } -static unsigned int -eiger_startup_irq(unsigned int irq) -{ - eiger_enable_irq(irq); - return 0; /* never anything pending */ -} - -static void -eiger_end_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - eiger_enable_irq(irq); -} - -static struct hw_interrupt_type eiger_irq_type = { - .typename = "EIGER", - .startup = eiger_startup_irq, - .shutdown = eiger_disable_irq, - .enable = eiger_enable_irq, - .disable = eiger_disable_irq, - .ack = eiger_disable_irq, - .end = eiger_end_irq, +static struct irq_chip eiger_irq_type = { + .name = "EIGER", + .irq_unmask = eiger_enable_irq, + .irq_mask = eiger_disable_irq, + .irq_mask_ack = eiger_disable_irq, }; static void @@ -153,13 +137,13 @@ eiger_init_irq(void) init_i8259a_irqs(); for (i = 16; i < 128; ++i) { - irq_desc[i].status = IRQ_DISABLED | IRQ_LEVEL; - irq_desc[i].chip = &eiger_irq_type; + irq_set_chip_and_handler(i, &eiger_irq_type, handle_level_irq); + irq_set_status_flags(i, IRQ_LEVEL); } } static int __init -eiger_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +eiger_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { u8 irq_orig; @@ -204,7 +188,7 @@ eiger_swizzle(struct pci_dev *dev, u8 *pinp) break; } /* Must be a card-based bridge. */ - pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn)); + pin = pci_swizzle_interrupt_pin(dev, pin); /* Move up the chain of bridges. */ dev = dev->bus->self; diff --git a/arch/alpha/kernel/sys_jensen.c b/arch/alpha/kernel/sys_jensen.c index 2c3de97de46..608f2a7fa0a 100644 --- a/arch/alpha/kernel/sys_jensen.c +++ b/arch/alpha/kernel/sys_jensen.c @@ -15,7 +15,6 @@ #include <linux/init.h> #include <asm/ptrace.h> -#include <asm/system.h> #define __EXTERN_INLINE inline #include <asm/io.h> @@ -62,70 +61,35 @@ * world. */ -static unsigned int -jensen_local_startup(unsigned int irq) -{ - /* the parport is really hw IRQ 1, silly Jensen. */ - if (irq == 7) - i8259a_startup_irq(1); - else - /* - * For all true local interrupts, set the flag that prevents - * the IPL from being dropped during handler processing. - */ - if (irq_desc[irq].action) - irq_desc[irq].action->flags |= IRQF_DISABLED; - return 0; -} - static void -jensen_local_shutdown(unsigned int irq) +jensen_local_enable(struct irq_data *d) { /* the parport is really hw IRQ 1, silly Jensen. */ - if (irq == 7) - i8259a_disable_irq(1); + if (d->irq == 7) + i8259a_enable_irq(d); } static void -jensen_local_enable(unsigned int irq) +jensen_local_disable(struct irq_data *d) { /* the parport is really hw IRQ 1, silly Jensen. */ - if (irq == 7) - i8259a_enable_irq(1); + if (d->irq == 7) + i8259a_disable_irq(d); } static void -jensen_local_disable(unsigned int irq) +jensen_local_mask_ack(struct irq_data *d) { /* the parport is really hw IRQ 1, silly Jensen. */ - if (irq == 7) - i8259a_disable_irq(1); + if (d->irq == 7) + i8259a_mask_and_ack_irq(d); } -static void -jensen_local_ack(unsigned int irq) -{ - /* the parport is really hw IRQ 1, silly Jensen. */ - if (irq == 7) - i8259a_mask_and_ack_irq(1); -} - -static void -jensen_local_end(unsigned int irq) -{ - /* the parport is really hw IRQ 1, silly Jensen. */ - if (irq == 7) - i8259a_end_irq(1); -} - -static struct hw_interrupt_type jensen_local_irq_type = { - .typename = "LOCAL", - .startup = jensen_local_startup, - .shutdown = jensen_local_shutdown, - .enable = jensen_local_enable, - .disable = jensen_local_disable, - .ack = jensen_local_ack, - .end = jensen_local_end, +static struct irq_chip jensen_local_irq_type = { + .name = "LOCAL", + .irq_unmask = jensen_local_enable, + .irq_mask = jensen_local_disable, + .irq_mask_ack = jensen_local_mask_ack, }; static void @@ -158,7 +122,7 @@ jensen_device_interrupt(unsigned long vector) } /* If there is no handler yet... */ - if (irq_desc[irq].action == NULL) { + if (!irq_has_action(irq)) { /* If it is a local interrupt that cannot be masked... */ if (vector >= 0x900) { @@ -206,11 +170,11 @@ jensen_init_irq(void) { init_i8259a_irqs(); - irq_desc[1].chip = &jensen_local_irq_type; - irq_desc[4].chip = &jensen_local_irq_type; - irq_desc[3].chip = &jensen_local_irq_type; - irq_desc[7].chip = &jensen_local_irq_type; - irq_desc[9].chip = &jensen_local_irq_type; + irq_set_chip_and_handler(1, &jensen_local_irq_type, handle_level_irq); + irq_set_chip_and_handler(4, &jensen_local_irq_type, handle_level_irq); + irq_set_chip_and_handler(3, &jensen_local_irq_type, handle_level_irq); + irq_set_chip_and_handler(7, &jensen_local_irq_type, handle_level_irq); + irq_set_chip_and_handler(9, &jensen_local_irq_type, handle_level_irq); common_init_isa_dma(); } @@ -244,12 +208,11 @@ jensen_init_arch(void) } static void -jensen_machine_check (u64 vector, u64 la) +jensen_machine_check(unsigned long vector, unsigned long la) { printk(KERN_CRIT "Machine check\n"); } - /* * The System Vector */ diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c index 922143ea1cd..f21d61fab67 100644 --- a/arch/alpha/kernel/sys_marvel.c +++ b/arch/alpha/kernel/sys_marvel.c @@ -13,7 +13,6 @@ #include <linux/bitops.h> #include <asm/ptrace.h> -#include <asm/system.h> #include <asm/dma.h> #include <asm/irq.h> #include <asm/mmu_context.h> @@ -80,7 +79,7 @@ io7_get_irq_ctl(unsigned int irq, struct io7 **pio7) if (!(io7 = marvel_find_io7(pid))) { printk(KERN_ERR "%s for nonexistent io7 -- vec %x, pid %d\n", - __FUNCTION__, irq, pid); + __func__, irq, pid); return NULL; } @@ -90,7 +89,7 @@ io7_get_irq_ctl(unsigned int irq, struct io7 **pio7) if (irq >= 0x180) { printk(KERN_ERR "%s for invalid irq -- pid %d adjusted irq %x\n", - __FUNCTION__, pid, irq); + __func__, pid, irq); return NULL; } @@ -103,18 +102,19 @@ io7_get_irq_ctl(unsigned int irq, struct io7 **pio7) } static void -io7_enable_irq(unsigned int irq) +io7_enable_irq(struct irq_data *d) { volatile unsigned long *ctl; + unsigned int irq = d->irq; struct io7 *io7; ctl = io7_get_irq_ctl(irq, &io7); if (!ctl || !io7) { - printk(KERN_ERR "%s: get_ctl failed for irq %x\n", - __FUNCTION__, irq); + printk(KERN_ERR "%s: get_ctl failed for irq %x\n", + __func__, irq); return; } - + spin_lock(&io7->irq_lock); *ctl |= 1UL << 24; mb(); @@ -123,18 +123,19 @@ io7_enable_irq(unsigned int irq) } static void -io7_disable_irq(unsigned int irq) +io7_disable_irq(struct irq_data *d) { volatile unsigned long *ctl; + unsigned int irq = d->irq; struct io7 *io7; ctl = io7_get_irq_ctl(irq, &io7); if (!ctl || !io7) { - printk(KERN_ERR "%s: get_ctl failed for irq %x\n", - __FUNCTION__, irq); + printk(KERN_ERR "%s: get_ctl failed for irq %x\n", + __func__, irq); return; } - + spin_lock(&io7->irq_lock); *ctl &= ~(1UL << 24); mb(); @@ -142,60 +143,30 @@ io7_disable_irq(unsigned int irq) spin_unlock(&io7->irq_lock); } -static unsigned int -io7_startup_irq(unsigned int irq) -{ - io7_enable_irq(irq); - return 0; /* never anything pending */ -} - static void -io7_end_irq(unsigned int irq) +marvel_irq_noop(struct irq_data *d) { - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - io7_enable_irq(irq); -} - -static void -marvel_irq_noop(unsigned int irq) -{ - return; -} - -static unsigned int -marvel_irq_noop_return(unsigned int irq) -{ - return 0; + return; } -static struct hw_interrupt_type marvel_legacy_irq_type = { - .typename = "LEGACY", - .startup = marvel_irq_noop_return, - .shutdown = marvel_irq_noop, - .enable = marvel_irq_noop, - .disable = marvel_irq_noop, - .ack = marvel_irq_noop, - .end = marvel_irq_noop, +static struct irq_chip marvel_legacy_irq_type = { + .name = "LEGACY", + .irq_mask = marvel_irq_noop, + .irq_unmask = marvel_irq_noop, }; -static struct hw_interrupt_type io7_lsi_irq_type = { - .typename = "LSI", - .startup = io7_startup_irq, - .shutdown = io7_disable_irq, - .enable = io7_enable_irq, - .disable = io7_disable_irq, - .ack = io7_disable_irq, - .end = io7_end_irq, +static struct irq_chip io7_lsi_irq_type = { + .name = "LSI", + .irq_unmask = io7_enable_irq, + .irq_mask = io7_disable_irq, + .irq_mask_ack = io7_disable_irq, }; -static struct hw_interrupt_type io7_msi_irq_type = { - .typename = "MSI", - .startup = io7_startup_irq, - .shutdown = io7_disable_irq, - .enable = io7_enable_irq, - .disable = io7_disable_irq, - .ack = marvel_irq_noop, - .end = io7_end_irq, +static struct irq_chip io7_msi_irq_type = { + .name = "MSI", + .irq_unmask = io7_enable_irq, + .irq_mask = io7_disable_irq, + .irq_ack = marvel_irq_noop, }; static void @@ -272,8 +243,8 @@ init_one_io7_msi(struct io7 *io7, unsigned int which, unsigned int where) static void __init init_io7_irqs(struct io7 *io7, - struct hw_interrupt_type *lsi_ops, - struct hw_interrupt_type *msi_ops) + struct irq_chip *lsi_ops, + struct irq_chip *msi_ops) { long base = (io7->pe << MARVEL_IRQ_VEC_PE_SHIFT) + 16; long i; @@ -303,8 +274,8 @@ init_io7_irqs(struct io7 *io7, /* Set up the lsi irqs. */ for (i = 0; i < 128; ++i) { - irq_desc[base + i].status = IRQ_DISABLED | IRQ_LEVEL; - irq_desc[base + i].chip = lsi_ops; + irq_set_chip_and_handler(base + i, lsi_ops, handle_level_irq); + irq_set_status_flags(i, IRQ_LEVEL); } /* Disable the implemented irqs in hardware. */ @@ -317,8 +288,8 @@ init_io7_irqs(struct io7 *io7, /* Set up the msi irqs. */ for (i = 128; i < (128 + 512); ++i) { - irq_desc[base + i].status = IRQ_DISABLED | IRQ_LEVEL; - irq_desc[base + i].chip = msi_ops; + irq_set_chip_and_handler(base + i, msi_ops, handle_level_irq); + irq_set_status_flags(i, IRQ_LEVEL); } for (i = 0; i < 16; ++i) @@ -335,8 +306,8 @@ marvel_init_irq(void) /* Reserve the legacy irqs. */ for (i = 0; i < 16; ++i) { - irq_desc[i].status = IRQ_DISABLED; - irq_desc[i].chip = &marvel_legacy_irq_type; + irq_set_chip_and_handler(i, &marvel_legacy_irq_type, + handle_level_irq); } /* Init the io7 irqs. */ @@ -345,8 +316,9 @@ marvel_init_irq(void) } static int -marvel_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +marvel_map_irq(const struct pci_dev *cdev, u8 slot, u8 pin) { + struct pci_dev *dev = (struct pci_dev *)cdev; struct pci_controller *hose = dev->sysdata; struct io7_port *io7_port = hose->sysdata; struct io7 *io7 = io7_port->io7; @@ -411,7 +383,8 @@ marvel_init_pci(void) marvel_register_error_handlers(); - pci_probe_only = 1; + /* Indicate that we trust the console to configure things properly */ + pci_set_flags(PCI_PROBE_ONLY); common_init_pci(); locate_and_init_vga(NULL); @@ -466,7 +439,8 @@ marvel_smp_callin(void) struct alpha_machine_vector marvel_ev7_mv __initmv = { .vector_name = "MARVEL/EV7", DO_EV7_MMU, - DO_DEFAULT_RTC, + .rtc_port = 0x70, + .rtc_boot_cpu_only = 1, DO_MARVEL_IO, .machine_check = marvel_machine_check, .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, diff --git a/arch/alpha/kernel/sys_miata.c b/arch/alpha/kernel/sys_miata.c index 910b43cd63e..d5b9776a608 100644 --- a/arch/alpha/kernel/sys_miata.c +++ b/arch/alpha/kernel/sys_miata.c @@ -17,7 +17,6 @@ #include <linux/reboot.h> #include <asm/ptrace.h> -#include <asm/system.h> #include <asm/dma.h> #include <asm/irq.h> #include <asm/mmu_context.h> @@ -151,7 +150,7 @@ miata_init_irq(void) */ static int __init -miata_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +miata_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[18][5] __initdata = { /*INT INTA INTB INTC INTD */ @@ -219,7 +218,7 @@ miata_swizzle(struct pci_dev *dev, u8 *pinp) slot = PCI_SLOT(dev->devfn) + 9; break; } - pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn)); + pin = pci_swizzle_interrupt_pin(dev, pin); /* Move up the chain of bridges. */ dev = dev->bus->self; diff --git a/arch/alpha/kernel/sys_mikasa.c b/arch/alpha/kernel/sys_mikasa.c index 8d3e9429c5e..5e82dc1ad6f 100644 --- a/arch/alpha/kernel/sys_mikasa.c +++ b/arch/alpha/kernel/sys_mikasa.c @@ -17,7 +17,7 @@ #include <linux/bitops.h> #include <asm/ptrace.h> -#include <asm/system.h> +#include <asm/mce.h> #include <asm/dma.h> #include <asm/irq.h> #include <asm/mmu_context.h> @@ -43,39 +43,22 @@ mikasa_update_irq_hw(int mask) } static inline void -mikasa_enable_irq(unsigned int irq) +mikasa_enable_irq(struct irq_data *d) { - mikasa_update_irq_hw(cached_irq_mask |= 1 << (irq - 16)); + mikasa_update_irq_hw(cached_irq_mask |= 1 << (d->irq - 16)); } static void -mikasa_disable_irq(unsigned int irq) +mikasa_disable_irq(struct irq_data *d) { - mikasa_update_irq_hw(cached_irq_mask &= ~(1 << (irq - 16))); + mikasa_update_irq_hw(cached_irq_mask &= ~(1 << (d->irq - 16))); } -static unsigned int -mikasa_startup_irq(unsigned int irq) -{ - mikasa_enable_irq(irq); - return 0; -} - -static void -mikasa_end_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - mikasa_enable_irq(irq); -} - -static struct hw_interrupt_type mikasa_irq_type = { - .typename = "MIKASA", - .startup = mikasa_startup_irq, - .shutdown = mikasa_disable_irq, - .enable = mikasa_enable_irq, - .disable = mikasa_disable_irq, - .ack = mikasa_disable_irq, - .end = mikasa_end_irq, +static struct irq_chip mikasa_irq_type = { + .name = "MIKASA", + .irq_unmask = mikasa_enable_irq, + .irq_mask = mikasa_disable_irq, + .irq_mask_ack = mikasa_disable_irq, }; static void @@ -115,8 +98,9 @@ mikasa_init_irq(void) mikasa_update_irq_hw(0); for (i = 16; i < 32; ++i) { - irq_desc[i].status = IRQ_DISABLED | IRQ_LEVEL; - irq_desc[i].chip = &mikasa_irq_type; + irq_set_chip_and_handler(i, &mikasa_irq_type, + handle_level_irq); + irq_set_status_flags(i, IRQ_LEVEL); } init_i8259a_irqs(); @@ -162,7 +146,7 @@ mikasa_init_irq(void) */ static int __init -mikasa_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +mikasa_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[8][5] __initdata = { /*INT INTA INTB INTC INTD */ diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c index 920196bcbb6..837c0fa5831 100644 --- a/arch/alpha/kernel/sys_nautilus.c +++ b/arch/alpha/kernel/sys_nautilus.c @@ -35,7 +35,6 @@ #include <linux/bitops.h> #include <asm/ptrace.h> -#include <asm/system.h> #include <asm/dma.h> #include <asm/irq.h> #include <asm/mmu_context.h> @@ -65,7 +64,7 @@ nautilus_init_irq(void) } static int __init -nautilus_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +nautilus_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { /* Preserve the IRQ set up by the console. */ @@ -186,8 +185,12 @@ nautilus_machine_check(unsigned long vector, unsigned long la_ptr) mb(); } -extern void free_reserved_mem(void *, void *); +extern void pcibios_claim_one_bus(struct pci_bus *); +static struct resource irongate_io = { + .name = "Irongate PCI IO", + .flags = IORESOURCE_IO, +}; static struct resource irongate_mem = { .name = "Irongate PCI MEM", .flags = IORESOURCE_MEM, @@ -205,9 +208,11 @@ nautilus_init_pci(void) /* Scan our single hose. */ bus = pci_scan_bus(0, alpha_mv.pci_ops, hose); hose->bus = bus; + pcibios_claim_one_bus(bus); irongate = pci_get_bus_and_slot(0, 0); bus->self = irongate; + bus->resource[0] = &irongate_io; bus->resource[1] = &irongate_mem; pci_bus_size_bridges(bus); @@ -233,8 +238,8 @@ nautilus_init_pci(void) if (pci_mem < memtop) memtop = pci_mem; if (memtop > alpha_mv.min_mem_address) { - free_reserved_mem(__va(alpha_mv.min_mem_address), - __va(memtop)); + free_reserved_area(__va(alpha_mv.min_mem_address), + __va(memtop), -1, NULL); printk("nautilus_init_pci: %ldk freed\n", (memtop - alpha_mv.min_mem_address) >> 10); } @@ -243,6 +248,10 @@ nautilus_init_pci(void) IRONGATE0->pci_mem = pci_mem; pci_bus_assign_resources(bus); + + /* pci_common_swizzle() relies on bus->self being NULL + for the root bus, so just clear it. */ + bus->self = NULL; pci_fixup_irqs(alpha_mv.pci_swizzle, alpha_mv.pci_map_irq); } diff --git a/arch/alpha/kernel/sys_noritake.c b/arch/alpha/kernel/sys_noritake.c index eb2a1d63f48..063e594fd96 100644 --- a/arch/alpha/kernel/sys_noritake.c +++ b/arch/alpha/kernel/sys_noritake.c @@ -18,7 +18,7 @@ #include <linux/bitops.h> #include <asm/ptrace.h> -#include <asm/system.h> +#include <asm/mce.h> #include <asm/dma.h> #include <asm/irq.h> #include <asm/mmu_context.h> @@ -48,39 +48,22 @@ noritake_update_irq_hw(int irq, int mask) } static void -noritake_enable_irq(unsigned int irq) +noritake_enable_irq(struct irq_data *d) { - noritake_update_irq_hw(irq, cached_irq_mask |= 1 << (irq - 16)); + noritake_update_irq_hw(d->irq, cached_irq_mask |= 1 << (d->irq - 16)); } static void -noritake_disable_irq(unsigned int irq) +noritake_disable_irq(struct irq_data *d) { - noritake_update_irq_hw(irq, cached_irq_mask &= ~(1 << (irq - 16))); + noritake_update_irq_hw(d->irq, cached_irq_mask &= ~(1 << (d->irq - 16))); } -static unsigned int -noritake_startup_irq(unsigned int irq) -{ - noritake_enable_irq(irq); - return 0; -} - -static void -noritake_end_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - noritake_enable_irq(irq); -} - -static struct hw_interrupt_type noritake_irq_type = { - .typename = "NORITAKE", - .startup = noritake_startup_irq, - .shutdown = noritake_disable_irq, - .enable = noritake_enable_irq, - .disable = noritake_disable_irq, - .ack = noritake_disable_irq, - .end = noritake_end_irq, +static struct irq_chip noritake_irq_type = { + .name = "NORITAKE", + .irq_unmask = noritake_enable_irq, + .irq_mask = noritake_disable_irq, + .irq_mask_ack = noritake_disable_irq, }; static void @@ -144,8 +127,9 @@ noritake_init_irq(void) outw(0, 0x54c); for (i = 16; i < 48; ++i) { - irq_desc[i].status = IRQ_DISABLED | IRQ_LEVEL; - irq_desc[i].chip = &noritake_irq_type; + irq_set_chip_and_handler(i, &noritake_irq_type, + handle_level_irq); + irq_set_status_flags(i, IRQ_LEVEL); } init_i8259a_irqs(); @@ -210,7 +194,7 @@ noritake_init_irq(void) */ static int __init -noritake_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +noritake_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[15][5] __initdata = { /*INT INTA INTB INTC INTD */ @@ -257,7 +241,7 @@ noritake_swizzle(struct pci_dev *dev, u8 *pinp) slot = PCI_SLOT(dev->devfn) + 15; break; } - pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn)) ; + pin = pci_swizzle_interrupt_pin(dev, pin); /* Move up the chain of bridges. */ dev = dev->bus->self; diff --git a/arch/alpha/kernel/sys_rawhide.c b/arch/alpha/kernel/sys_rawhide.c index 672cb2df53d..dfd510ae5d8 100644 --- a/arch/alpha/kernel/sys_rawhide.c +++ b/arch/alpha/kernel/sys_rawhide.c @@ -16,7 +16,6 @@ #include <linux/init.h> #include <asm/ptrace.h> -#include <asm/system.h> #include <asm/dma.h> #include <asm/irq.h> #include <asm/mmu_context.h> @@ -56,9 +55,10 @@ rawhide_update_irq_hw(int hose, int mask) (((h) < MCPCIA_MAX_HOSES) && (cached_irq_masks[(h)] != 0)) static inline void -rawhide_enable_irq(unsigned int irq) +rawhide_enable_irq(struct irq_data *d) { unsigned int mask, hose; + unsigned int irq = d->irq; irq -= 16; hose = irq / 24; @@ -76,9 +76,10 @@ rawhide_enable_irq(unsigned int irq) } static void -rawhide_disable_irq(unsigned int irq) +rawhide_disable_irq(struct irq_data *d) { unsigned int mask, hose; + unsigned int irq = d->irq; irq -= 16; hose = irq / 24; @@ -96,9 +97,10 @@ rawhide_disable_irq(unsigned int irq) } static void -rawhide_mask_and_ack_irq(unsigned int irq) +rawhide_mask_and_ack_irq(struct irq_data *d) { unsigned int mask, mask1, hose; + unsigned int irq = d->irq; irq -= 16; hose = irq / 24; @@ -121,28 +123,11 @@ rawhide_mask_and_ack_irq(unsigned int irq) spin_unlock(&rawhide_irq_lock); } -static unsigned int -rawhide_startup_irq(unsigned int irq) -{ - rawhide_enable_irq(irq); - return 0; -} - -static void -rawhide_end_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - rawhide_enable_irq(irq); -} - -static struct hw_interrupt_type rawhide_irq_type = { - .typename = "RAWHIDE", - .startup = rawhide_startup_irq, - .shutdown = rawhide_disable_irq, - .enable = rawhide_enable_irq, - .disable = rawhide_disable_irq, - .ack = rawhide_mask_and_ack_irq, - .end = rawhide_end_irq, +static struct irq_chip rawhide_irq_type = { + .name = "RAWHIDE", + .irq_unmask = rawhide_enable_irq, + .irq_mask = rawhide_disable_irq, + .irq_mask_ack = rawhide_mask_and_ack_irq, }; static void @@ -194,8 +179,9 @@ rawhide_init_irq(void) } for (i = 16; i < 128; ++i) { - irq_desc[i].status = IRQ_DISABLED | IRQ_LEVEL; - irq_desc[i].chip = &rawhide_irq_type; + irq_set_chip_and_handler(i, &rawhide_irq_type, + handle_level_irq); + irq_set_status_flags(i, IRQ_LEVEL); } init_i8259a_irqs(); @@ -236,7 +222,7 @@ rawhide_init_irq(void) */ static int __init -rawhide_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +rawhide_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[5][5] __initdata = { /*INT INTA INTB INTC INTD */ diff --git a/arch/alpha/kernel/sys_ruffian.c b/arch/alpha/kernel/sys_ruffian.c index 5b99cf3cd69..a3f48525717 100644 --- a/arch/alpha/kernel/sys_ruffian.c +++ b/arch/alpha/kernel/sys_ruffian.c @@ -14,10 +14,10 @@ #include <linux/sched.h> #include <linux/pci.h> #include <linux/ioport.h> +#include <linux/timex.h> #include <linux/init.h> #include <asm/ptrace.h> -#include <asm/system.h> #include <asm/dma.h> #include <asm/irq.h> #include <asm/mmu_context.h> @@ -25,7 +25,6 @@ #include <asm/pgtable.h> #include <asm/core_cia.h> #include <asm/tlbflush.h> -#include <asm/8253pit.h> #include "proto.h" #include "irq_impl.h" @@ -65,7 +64,7 @@ ruffian_init_irq(void) common_init_isa_dma(); } -#define RUFFIAN_LATCH ((PIT_TICK_RATE + HZ / 2) / HZ) +#define RUFFIAN_LATCH DIV_ROUND_CLOSEST(PIT_TICK_RATE, HZ) static void __init ruffian_init_rtc(void) @@ -119,7 +118,7 @@ ruffian_kill_arch (int mode) */ static int __init -ruffian_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +ruffian_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[11][5] __initdata = { /*INT INTA INTB INTC INTD */ @@ -160,7 +159,7 @@ ruffian_swizzle(struct pci_dev *dev, u8 *pinp) slot = PCI_SLOT(dev->devfn) + 10; break; } - pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn)); + pin = pci_swizzle_interrupt_pin(dev, pin); /* Move up the chain of bridges. */ dev = dev->bus->self; diff --git a/arch/alpha/kernel/sys_rx164.c b/arch/alpha/kernel/sys_rx164.c index ce1faa6f1df..08ee737d4fb 100644 --- a/arch/alpha/kernel/sys_rx164.c +++ b/arch/alpha/kernel/sys_rx164.c @@ -17,7 +17,6 @@ #include <linux/bitops.h> #include <asm/ptrace.h> -#include <asm/system.h> #include <asm/dma.h> #include <asm/irq.h> #include <asm/mmu_context.h> @@ -47,39 +46,22 @@ rx164_update_irq_hw(unsigned long mask) } static inline void -rx164_enable_irq(unsigned int irq) +rx164_enable_irq(struct irq_data *d) { - rx164_update_irq_hw(cached_irq_mask |= 1UL << (irq - 16)); + rx164_update_irq_hw(cached_irq_mask |= 1UL << (d->irq - 16)); } static void -rx164_disable_irq(unsigned int irq) +rx164_disable_irq(struct irq_data *d) { - rx164_update_irq_hw(cached_irq_mask &= ~(1UL << (irq - 16))); + rx164_update_irq_hw(cached_irq_mask &= ~(1UL << (d->irq - 16))); } -static unsigned int -rx164_startup_irq(unsigned int irq) -{ - rx164_enable_irq(irq); - return 0; -} - -static void -rx164_end_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - rx164_enable_irq(irq); -} - -static struct hw_interrupt_type rx164_irq_type = { - .typename = "RX164", - .startup = rx164_startup_irq, - .shutdown = rx164_disable_irq, - .enable = rx164_enable_irq, - .disable = rx164_disable_irq, - .ack = rx164_disable_irq, - .end = rx164_end_irq, +static struct irq_chip rx164_irq_type = { + .name = "RX164", + .irq_unmask = rx164_enable_irq, + .irq_mask = rx164_disable_irq, + .irq_mask_ack = rx164_disable_irq, }; static void @@ -116,8 +98,8 @@ rx164_init_irq(void) rx164_update_irq_hw(0); for (i = 16; i < 40; ++i) { - irq_desc[i].status = IRQ_DISABLED | IRQ_LEVEL; - irq_desc[i].chip = &rx164_irq_type; + irq_set_chip_and_handler(i, &rx164_irq_type, handle_level_irq); + irq_set_status_flags(i, IRQ_LEVEL); } init_i8259a_irqs(); @@ -161,7 +143,7 @@ rx164_init_irq(void) */ static int __init -rx164_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +rx164_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { #if 0 static char irq_tab_pass1[6][5] __initdata = { diff --git a/arch/alpha/kernel/sys_sable.c b/arch/alpha/kernel/sys_sable.c index 906019cfa68..8a0aa6d67b5 100644 --- a/arch/alpha/kernel/sys_sable.c +++ b/arch/alpha/kernel/sys_sable.c @@ -16,7 +16,6 @@ #include <linux/init.h> #include <asm/ptrace.h> -#include <asm/system.h> #include <asm/dma.h> #include <asm/irq.h> #include <asm/mmu_context.h> @@ -47,7 +46,7 @@ typedef struct irq_swizzle_struct static irq_swizzle_t *sable_lynx_irq_swizzle; -static void sable_lynx_init_irq(int nr_irqs); +static void sable_lynx_init_irq(int nr_of_irqs); #if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_SABLE) @@ -194,7 +193,7 @@ sable_init_irq(void) */ static int __init -sable_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +sable_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[9][5] __initdata = { /*INT INTA INTB INTC INTD */ @@ -376,7 +375,7 @@ lynx_init_irq(void) */ static int __init -lynx_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +lynx_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[19][5] __initdata = { /*INT INTA INTB INTC INTD */ @@ -425,7 +424,7 @@ lynx_swizzle(struct pci_dev *dev, u8 *pinp) slot = PCI_SLOT(dev->devfn) + 11; break; } - pin = bridge_swizzle(pin, PCI_SLOT(dev->devfn)) ; + pin = pci_swizzle_interrupt_pin(dev, pin); /* Move up the chain of bridges. */ dev = dev->bus->self; @@ -443,57 +442,43 @@ lynx_swizzle(struct pci_dev *dev, u8 *pinp) /* GENERIC irq routines */ static inline void -sable_lynx_enable_irq(unsigned int irq) +sable_lynx_enable_irq(struct irq_data *d) { unsigned long bit, mask; - bit = sable_lynx_irq_swizzle->irq_to_mask[irq]; + bit = sable_lynx_irq_swizzle->irq_to_mask[d->irq]; spin_lock(&sable_lynx_irq_lock); mask = sable_lynx_irq_swizzle->shadow_mask &= ~(1UL << bit); sable_lynx_irq_swizzle->update_irq_hw(bit, mask); spin_unlock(&sable_lynx_irq_lock); #if 0 - printk("%s: mask 0x%lx bit 0x%x irq 0x%x\n", - __FUNCTION__, mask, bit, irq); + printk("%s: mask 0x%lx bit 0x%lx irq 0x%x\n", + __func__, mask, bit, irq); #endif } static void -sable_lynx_disable_irq(unsigned int irq) +sable_lynx_disable_irq(struct irq_data *d) { unsigned long bit, mask; - bit = sable_lynx_irq_swizzle->irq_to_mask[irq]; + bit = sable_lynx_irq_swizzle->irq_to_mask[d->irq]; spin_lock(&sable_lynx_irq_lock); mask = sable_lynx_irq_swizzle->shadow_mask |= 1UL << bit; sable_lynx_irq_swizzle->update_irq_hw(bit, mask); spin_unlock(&sable_lynx_irq_lock); #if 0 - printk("%s: mask 0x%lx bit 0x%x irq 0x%x\n", - __FUNCTION__, mask, bit, irq); + printk("%s: mask 0x%lx bit 0x%lx irq 0x%x\n", + __func__, mask, bit, irq); #endif } -static unsigned int -sable_lynx_startup_irq(unsigned int irq) -{ - sable_lynx_enable_irq(irq); - return 0; -} - -static void -sable_lynx_end_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - sable_lynx_enable_irq(irq); -} - static void -sable_lynx_mask_and_ack_irq(unsigned int irq) +sable_lynx_mask_and_ack_irq(struct irq_data *d) { unsigned long bit, mask; - bit = sable_lynx_irq_swizzle->irq_to_mask[irq]; + bit = sable_lynx_irq_swizzle->irq_to_mask[d->irq]; spin_lock(&sable_lynx_irq_lock); mask = sable_lynx_irq_swizzle->shadow_mask |= 1UL << bit; sable_lynx_irq_swizzle->update_irq_hw(bit, mask); @@ -501,14 +486,11 @@ sable_lynx_mask_and_ack_irq(unsigned int irq) spin_unlock(&sable_lynx_irq_lock); } -static struct hw_interrupt_type sable_lynx_irq_type = { - .typename = "SABLE/LYNX", - .startup = sable_lynx_startup_irq, - .shutdown = sable_lynx_disable_irq, - .enable = sable_lynx_enable_irq, - .disable = sable_lynx_disable_irq, - .ack = sable_lynx_mask_and_ack_irq, - .end = sable_lynx_end_irq, +static struct irq_chip sable_lynx_irq_type = { + .name = "SABLE/LYNX", + .irq_unmask = sable_lynx_enable_irq, + .irq_mask = sable_lynx_disable_irq, + .irq_mask_ack = sable_lynx_mask_and_ack_irq, }; static void @@ -524,19 +506,20 @@ sable_lynx_srm_device_interrupt(unsigned long vector) irq = sable_lynx_irq_swizzle->mask_to_irq[bit]; #if 0 printk("%s: vector 0x%lx bit 0x%x irq 0x%x\n", - __FUNCTION__, vector, bit, irq); + __func__, vector, bit, irq); #endif handle_irq(irq); } static void __init -sable_lynx_init_irq(int nr_irqs) +sable_lynx_init_irq(int nr_of_irqs) { long i; - for (i = 0; i < nr_irqs; ++i) { - irq_desc[i].status = IRQ_DISABLED | IRQ_LEVEL; - irq_desc[i].chip = &sable_lynx_irq_type; + for (i = 0; i < nr_of_irqs; ++i) { + irq_set_chip_and_handler(i, &sable_lynx_irq_type, + handle_level_irq); + irq_set_status_flags(i, IRQ_LEVEL); } common_init_isa_dma(); diff --git a/arch/alpha/kernel/sys_sio.c b/arch/alpha/kernel/sys_sio.c index ee7b9009ebb..febd24eba7a 100644 --- a/arch/alpha/kernel/sys_sio.c +++ b/arch/alpha/kernel/sys_sio.c @@ -20,7 +20,6 @@ #include <asm/compiler.h> #include <asm/ptrace.h> -#include <asm/system.h> #include <asm/dma.h> #include <asm/irq.h> #include <asm/mmu_context.h> @@ -34,6 +33,7 @@ #include "irq_impl.h" #include "pci_impl.h" #include "machvec_impl.h" +#include "pc873xx.h" #if defined(ALPHA_RESTORE_SRM_SETUP) /* Save LCA configuration data as the console had it set up. */ @@ -89,7 +89,7 @@ sio_pci_route(void) /* First, ALWAYS read and print the original setting. */ pci_bus_read_config_dword(pci_isa_hose->bus, PCI_DEVFN(7, 0), 0x60, &orig_route_tab); - printk("%s: PIRQ original 0x%x new 0x%x\n", __FUNCTION__, + printk("%s: PIRQ original 0x%x new 0x%x\n", __func__, orig_route_tab, alpha_mv.sys.sio.route_tab); #if defined(ALPHA_RESTORE_SRM_SETUP) @@ -145,7 +145,7 @@ sio_fixup_irq_levels(unsigned int level_bits) } static inline int __init -noname_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +noname_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { /* * The Noname board has 5 PCI slots with each of the 4 @@ -184,7 +184,7 @@ noname_map_irq(struct pci_dev *dev, u8 slot, u8 pin) } static inline int __init -p2k_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +p2k_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[][5] __initdata = { /*INT A B C D */ @@ -208,7 +208,27 @@ noname_init_pci(void) common_init_pci(); sio_pci_route(); sio_fixup_irq_levels(sio_collect_irq_levels()); - ns87312_enable_ide(0x26e); + + if (pc873xx_probe() == -1) { + printk(KERN_ERR "Probing for PC873xx Super IO chip failed.\n"); + } else { + printk(KERN_INFO "Found %s Super IO chip at 0x%x\n", + pc873xx_get_model(), pc873xx_get_base()); + + /* Enabling things in the Super IO chip doesn't actually + * configure and enable things, the legacy drivers still + * need to do the actual configuration and enabling. + * This only unblocks them. + */ + +#if !defined(CONFIG_ALPHA_AVANTI) + /* Don't bother on the Avanti family. + * None of them had on-board IDE. + */ + pc873xx_enable_ide(); +#endif + pc873xx_enable_epp19(); + } } static inline void __init diff --git a/arch/alpha/kernel/sys_sx164.c b/arch/alpha/kernel/sys_sx164.c index 41d4ad4c7c4..d063b360efe 100644 --- a/arch/alpha/kernel/sys_sx164.c +++ b/arch/alpha/kernel/sys_sx164.c @@ -17,7 +17,6 @@ #include <linux/bitops.h> #include <asm/ptrace.h> -#include <asm/system.h> #include <asm/dma.h> #include <asm/irq.h> #include <asm/mmu_context.h> @@ -26,6 +25,7 @@ #include <asm/core_cia.h> #include <asm/hwrpb.h> #include <asm/tlbflush.h> +#include <asm/special_insns.h> #include "proto.h" #include "irq_impl.h" @@ -95,7 +95,7 @@ sx164_init_irq(void) */ static int __init -sx164_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +sx164_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[5][5] __initdata = { /*INT INTA INTB INTC INTD */ diff --git a/arch/alpha/kernel/sys_takara.c b/arch/alpha/kernel/sys_takara.c index 9bd9a31450c..dd0f1eae3c6 100644 --- a/arch/alpha/kernel/sys_takara.c +++ b/arch/alpha/kernel/sys_takara.c @@ -16,7 +16,6 @@ #include <linux/init.h> #include <asm/ptrace.h> -#include <asm/system.h> #include <asm/dma.h> #include <asm/irq.h> #include <asm/mmu_context.h> @@ -29,7 +28,7 @@ #include "irq_impl.h" #include "pci_impl.h" #include "machvec_impl.h" - +#include "pc873xx.h" /* Note mask bit is true for DISABLED irqs. */ static unsigned long cached_irq_mask[2] = { -1, -1 }; @@ -45,43 +44,28 @@ takara_update_irq_hw(unsigned long irq, unsigned long mask) } static inline void -takara_enable_irq(unsigned int irq) +takara_enable_irq(struct irq_data *d) { + unsigned int irq = d->irq; unsigned long mask; mask = (cached_irq_mask[irq >= 64] &= ~(1UL << (irq & 63))); takara_update_irq_hw(irq, mask); } static void -takara_disable_irq(unsigned int irq) +takara_disable_irq(struct irq_data *d) { + unsigned int irq = d->irq; unsigned long mask; mask = (cached_irq_mask[irq >= 64] |= 1UL << (irq & 63)); takara_update_irq_hw(irq, mask); } -static unsigned int -takara_startup_irq(unsigned int irq) -{ - takara_enable_irq(irq); - return 0; /* never anything pending */ -} - -static void -takara_end_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - takara_enable_irq(irq); -} - -static struct hw_interrupt_type takara_irq_type = { - .typename = "TAKARA", - .startup = takara_startup_irq, - .shutdown = takara_disable_irq, - .enable = takara_enable_irq, - .disable = takara_disable_irq, - .ack = takara_disable_irq, - .end = takara_end_irq, +static struct irq_chip takara_irq_type = { + .name = "TAKARA", + .irq_unmask = takara_enable_irq, + .irq_mask = takara_disable_irq, + .irq_mask_ack = takara_disable_irq, }; static void @@ -153,8 +137,9 @@ takara_init_irq(void) takara_update_irq_hw(i, -1); for (i = 16; i < 128; ++i) { - irq_desc[i].status = IRQ_DISABLED | IRQ_LEVEL; - irq_desc[i].chip = &takara_irq_type; + irq_set_chip_and_handler(i, &takara_irq_type, + handle_level_irq); + irq_set_status_flags(i, IRQ_LEVEL); } common_init_isa_dma(); @@ -171,7 +156,7 @@ takara_init_irq(void) */ static int __init -takara_map_irq_srm(struct pci_dev *dev, u8 slot, u8 pin) +takara_map_irq_srm(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[15][5] __initdata = { { 16+3, 16+3, 16+3, 16+3, 16+3}, /* slot 6 == device 3 */ @@ -202,7 +187,7 @@ takara_map_irq_srm(struct pci_dev *dev, u8 slot, u8 pin) } static int __init -takara_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +takara_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[15][5] __initdata = { { 16+3, 16+3, 16+3, 16+3, 16+3}, /* slot 6 == device 3 */ @@ -264,7 +249,14 @@ takara_init_pci(void) alpha_mv.pci_map_irq = takara_map_irq_srm; cia_init_pci(); - ns87312_enable_ide(0x26e); + + if (pc873xx_probe() == -1) { + printk(KERN_ERR "Probing for PC873xx Super IO chip failed.\n"); + } else { + printk(KERN_INFO "Found %s Super IO chip at 0x%x\n", + pc873xx_get_model(), pc873xx_get_base()); + pc873xx_enable_ide(); + } } diff --git a/arch/alpha/kernel/sys_titan.c b/arch/alpha/kernel/sys_titan.c index 52c91ccc164..a53cf03f49d 100644 --- a/arch/alpha/kernel/sys_titan.c +++ b/arch/alpha/kernel/sys_titan.c @@ -21,7 +21,6 @@ #include <linux/bitops.h> #include <asm/ptrace.h> -#include <asm/system.h> #include <asm/dma.h> #include <asm/irq.h> #include <asm/mmu_context.h> @@ -65,10 +64,11 @@ titan_update_irq_hw(unsigned long mask) register int bcpu = boot_cpuid; #ifdef CONFIG_SMP - cpumask_t cpm = cpu_present_map; + cpumask_t cpm; volatile unsigned long *dim0, *dim1, *dim2, *dim3; unsigned long mask0, mask1, mask2, mask3, dummy; + cpumask_copy(&cpm, cpu_present_mask); mask &= ~isa_enable; mask0 = mask & titan_cpu_irq_affinity[0]; mask1 = mask & titan_cpu_irq_affinity[1]; @@ -84,10 +84,10 @@ titan_update_irq_hw(unsigned long mask) dim1 = &cchip->dim1.csr; dim2 = &cchip->dim2.csr; dim3 = &cchip->dim3.csr; - if (!cpu_isset(0, cpm)) dim0 = &dummy; - if (!cpu_isset(1, cpm)) dim1 = &dummy; - if (!cpu_isset(2, cpm)) dim2 = &dummy; - if (!cpu_isset(3, cpm)) dim3 = &dummy; + if (!cpumask_test_cpu(0, &cpm)) dim0 = &dummy; + if (!cpumask_test_cpu(1, &cpm)) dim1 = &dummy; + if (!cpumask_test_cpu(2, &cpm)) dim2 = &dummy; + if (!cpumask_test_cpu(3, &cpm)) dim3 = &dummy; *dim0 = mask0; *dim1 = mask1; @@ -112,8 +112,9 @@ titan_update_irq_hw(unsigned long mask) } static inline void -titan_enable_irq(unsigned int irq) +titan_enable_irq(struct irq_data *d) { + unsigned int irq = d->irq; spin_lock(&titan_irq_lock); titan_cached_irq_mask |= 1UL << (irq - 16); titan_update_irq_hw(titan_cached_irq_mask); @@ -121,35 +122,22 @@ titan_enable_irq(unsigned int irq) } static inline void -titan_disable_irq(unsigned int irq) +titan_disable_irq(struct irq_data *d) { + unsigned int irq = d->irq; spin_lock(&titan_irq_lock); titan_cached_irq_mask &= ~(1UL << (irq - 16)); titan_update_irq_hw(titan_cached_irq_mask); spin_unlock(&titan_irq_lock); } -static unsigned int -titan_startup_irq(unsigned int irq) -{ - titan_enable_irq(irq); - return 0; /* never anything pending */ -} - -static void -titan_end_irq(unsigned int irq) -{ - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - titan_enable_irq(irq); -} - static void titan_cpu_set_irq_affinity(unsigned int irq, cpumask_t affinity) { int cpu; for (cpu = 0; cpu < 4; cpu++) { - if (cpu_isset(cpu, affinity)) + if (cpumask_test_cpu(cpu, &affinity)) titan_cpu_irq_affinity[cpu] |= 1UL << irq; else titan_cpu_irq_affinity[cpu] &= ~(1UL << irq); @@ -157,19 +145,23 @@ titan_cpu_set_irq_affinity(unsigned int irq, cpumask_t affinity) } -static void -titan_set_irq_affinity(unsigned int irq, cpumask_t affinity) +static int +titan_set_irq_affinity(struct irq_data *d, const struct cpumask *affinity, + bool force) { + unsigned int irq = d->irq; spin_lock(&titan_irq_lock); - titan_cpu_set_irq_affinity(irq - 16, affinity); + titan_cpu_set_irq_affinity(irq - 16, *affinity); titan_update_irq_hw(titan_cached_irq_mask); spin_unlock(&titan_irq_lock); + + return 0; } static void titan_device_interrupt(unsigned long vector) { - printk("titan_device_interrupt: NOT IMPLEMENTED YET!! \n"); + printk("titan_device_interrupt: NOT IMPLEMENTED YET!!\n"); } static void @@ -183,24 +175,21 @@ titan_srm_device_interrupt(unsigned long vector) static void __init -init_titan_irqs(struct hw_interrupt_type * ops, int imin, int imax) +init_titan_irqs(struct irq_chip * ops, int imin, int imax) { long i; for (i = imin; i <= imax; ++i) { - irq_desc[i].status = IRQ_DISABLED | IRQ_LEVEL; - irq_desc[i].chip = ops; + irq_set_chip_and_handler(i, ops, handle_level_irq); + irq_set_status_flags(i, IRQ_LEVEL); } } -static struct hw_interrupt_type titan_irq_type = { - .typename = "TITAN", - .startup = titan_startup_irq, - .shutdown = titan_disable_irq, - .enable = titan_enable_irq, - .disable = titan_disable_irq, - .ack = titan_disable_irq, - .end = titan_end_irq, - .set_affinity = titan_set_irq_affinity, +static struct irq_chip titan_irq_type = { + .name = "TITAN", + .irq_unmask = titan_enable_irq, + .irq_mask = titan_disable_irq, + .irq_mask_ack = titan_disable_irq, + .irq_set_affinity = titan_set_irq_affinity, }; static irqreturn_t @@ -291,15 +280,15 @@ titan_late_init(void) * all reported to the kernel as machine checks, so the handler * is a nop so it can be called to count the individual events. */ - titan_request_irq(63+16, titan_intr_nop, IRQF_DISABLED, + titan_request_irq(63+16, titan_intr_nop, 0, "CChip Error", NULL); - titan_request_irq(62+16, titan_intr_nop, IRQF_DISABLED, + titan_request_irq(62+16, titan_intr_nop, 0, "PChip 0 H_Error", NULL); - titan_request_irq(61+16, titan_intr_nop, IRQF_DISABLED, + titan_request_irq(61+16, titan_intr_nop, 0, "PChip 1 H_Error", NULL); - titan_request_irq(60+16, titan_intr_nop, IRQF_DISABLED, + titan_request_irq(60+16, titan_intr_nop, 0, "PChip 0 C_Error", NULL); - titan_request_irq(59+16, titan_intr_nop, IRQF_DISABLED, + titan_request_irq(59+16, titan_intr_nop, 0, "PChip 1 C_Error", NULL); /* @@ -314,8 +303,8 @@ titan_late_init(void) } -static int __devinit -titan_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +static int +titan_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { u8 intline; int irq; @@ -341,7 +330,8 @@ titan_init_pci(void) */ titan_late_init(); - pci_probe_only = 1; + /* Indicate that we trust the console to configure things properly */ + pci_set_flags(PCI_PROBE_ONLY); common_init_pci(); SMC669_Init(0); locate_and_init_vga(NULL); @@ -358,9 +348,9 @@ privateer_init_pci(void) * Hook a couple of extra err interrupts that the * common titan code won't. */ - titan_request_irq(53+16, titan_intr_nop, IRQF_DISABLED, + titan_request_irq(53+16, titan_intr_nop, 0, "NMI", NULL); - titan_request_irq(50+16, titan_intr_nop, IRQF_DISABLED, + titan_request_irq(50+16, titan_intr_nop, 0, "Temperature Warning", NULL); /* diff --git a/arch/alpha/kernel/sys_wildfire.c b/arch/alpha/kernel/sys_wildfire.c index 42c3eede4d0..ee187488777 100644 --- a/arch/alpha/kernel/sys_wildfire.c +++ b/arch/alpha/kernel/sys_wildfire.c @@ -15,7 +15,6 @@ #include <linux/bitops.h> #include <asm/ptrace.h> -#include <asm/system.h> #include <asm/dma.h> #include <asm/irq.h> #include <asm/mmu_context.h> @@ -104,10 +103,12 @@ wildfire_init_irq_hw(void) } static void -wildfire_enable_irq(unsigned int irq) +wildfire_enable_irq(struct irq_data *d) { + unsigned int irq = d->irq; + if (irq < 16) - i8259a_enable_irq(irq); + i8259a_enable_irq(d); spin_lock(&wildfire_irq_lock); set_bit(irq, &cached_irq_mask); @@ -116,10 +117,12 @@ wildfire_enable_irq(unsigned int irq) } static void -wildfire_disable_irq(unsigned int irq) +wildfire_disable_irq(struct irq_data *d) { + unsigned int irq = d->irq; + if (irq < 16) - i8259a_disable_irq(irq); + i8259a_disable_irq(d); spin_lock(&wildfire_irq_lock); clear_bit(irq, &cached_irq_mask); @@ -128,10 +131,12 @@ wildfire_disable_irq(unsigned int irq) } static void -wildfire_mask_and_ack_irq(unsigned int irq) +wildfire_mask_and_ack_irq(struct irq_data *d) { + unsigned int irq = d->irq; + if (irq < 16) - i8259a_mask_and_ack_irq(irq); + i8259a_mask_and_ack_irq(d); spin_lock(&wildfire_irq_lock); clear_bit(irq, &cached_irq_mask); @@ -139,39 +144,17 @@ wildfire_mask_and_ack_irq(unsigned int irq) spin_unlock(&wildfire_irq_lock); } -static unsigned int -wildfire_startup_irq(unsigned int irq) -{ - wildfire_enable_irq(irq); - return 0; /* never anything pending */ -} - -static void -wildfire_end_irq(unsigned int irq) -{ -#if 0 - if (!irq_desc[irq].action) - printk("got irq %d\n", irq); -#endif - if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS))) - wildfire_enable_irq(irq); -} - -static struct hw_interrupt_type wildfire_irq_type = { - .typename = "WILDFIRE", - .startup = wildfire_startup_irq, - .shutdown = wildfire_disable_irq, - .enable = wildfire_enable_irq, - .disable = wildfire_disable_irq, - .ack = wildfire_mask_and_ack_irq, - .end = wildfire_end_irq, +static struct irq_chip wildfire_irq_type = { + .name = "WILDFIRE", + .irq_unmask = wildfire_enable_irq, + .irq_mask = wildfire_disable_irq, + .irq_mask_ack = wildfire_mask_and_ack_irq, }; static void __init wildfire_init_irq_per_pca(int qbbno, int pcano) { int i, irq_bias; - unsigned long io_bias; static struct irqaction isa_enable = { .handler = no_action, .name = "isa_enable", @@ -180,10 +163,12 @@ wildfire_init_irq_per_pca(int qbbno, int pcano) irq_bias = qbbno * (WILDFIRE_PCA_PER_QBB * WILDFIRE_IRQ_PER_PCA) + pcano * WILDFIRE_IRQ_PER_PCA; +#if 0 + unsigned long io_bias; + /* Only need the following for first PCI bus per PCA. */ io_bias = WILDFIRE_IO(qbbno, pcano<<1) - WILDFIRE_IO_BIAS; -#if 0 outb(0, DMA1_RESET_REG + io_bias); outb(0, DMA2_RESET_REG + io_bias); outb(DMA_MODE_CASCADE, DMA2_MODE_REG + io_bias); @@ -198,18 +183,21 @@ wildfire_init_irq_per_pca(int qbbno, int pcano) for (i = 0; i < 16; ++i) { if (i == 2) continue; - irq_desc[i+irq_bias].status = IRQ_DISABLED | IRQ_LEVEL; - irq_desc[i+irq_bias].chip = &wildfire_irq_type; + irq_set_chip_and_handler(i + irq_bias, &wildfire_irq_type, + handle_level_irq); + irq_set_status_flags(i + irq_bias, IRQ_LEVEL); } - irq_desc[36+irq_bias].status = IRQ_DISABLED | IRQ_LEVEL; - irq_desc[36+irq_bias].chip = &wildfire_irq_type; + irq_set_chip_and_handler(36 + irq_bias, &wildfire_irq_type, + handle_level_irq); + irq_set_status_flags(36 + irq_bias, IRQ_LEVEL); for (i = 40; i < 64; ++i) { - irq_desc[i+irq_bias].status = IRQ_DISABLED | IRQ_LEVEL; - irq_desc[i+irq_bias].chip = &wildfire_irq_type; + irq_set_chip_and_handler(i + irq_bias, &wildfire_irq_type, + handle_level_irq); + irq_set_status_flags(i + irq_bias, IRQ_LEVEL); } - setup_irq(32+irq_bias, &isa_enable); + setup_irq(32+irq_bias, &isa_enable); } static void __init @@ -301,7 +289,7 @@ wildfire_device_interrupt(unsigned long vector) */ static int __init -wildfire_map_irq(struct pci_dev *dev, u8 slot, u8 pin) +wildfire_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { static char irq_tab[8][5] __initdata = { /*INT INTA INTB INTC INTD */ diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S index ba914af18c4..dca9b3fb007 100644 --- a/arch/alpha/kernel/systbls.S +++ b/arch/alpha/kernel/systbls.S @@ -12,12 +12,12 @@ sys_call_table: .quad alpha_ni_syscall /* 0 */ .quad sys_exit - .quad sys_fork + .quad alpha_fork .quad sys_read .quad sys_write .quad alpha_ni_syscall /* 5 */ .quad sys_close - .quad osf_wait4 + .quad sys_osf_wait4 .quad alpha_ni_syscall .quad sys_link .quad sys_unlink /* 10 */ @@ -27,11 +27,11 @@ sys_call_table: .quad sys_mknod .quad sys_chmod /* 15 */ .quad sys_chown - .quad osf_brk + .quad sys_osf_brk .quad alpha_ni_syscall .quad sys_lseek .quad sys_getxpid /* 20 */ - .quad osf_mount + .quad sys_osf_mount .quad sys_umount .quad sys_setuid .quad sys_getxuid @@ -52,13 +52,13 @@ sys_call_table: .quad sys_setpgid .quad alpha_ni_syscall /* 40 */ .quad sys_dup - .quad sys_pipe - .quad osf_set_program_attributes + .quad sys_alpha_pipe + .quad sys_osf_set_program_attributes .quad alpha_ni_syscall .quad sys_open /* 45 */ .quad alpha_ni_syscall .quad sys_getxgid - .quad osf_sigprocmask + .quad sys_osf_sigprocmask .quad alpha_ni_syscall .quad alpha_ni_syscall /* 50 */ .quad sys_acct @@ -76,12 +76,12 @@ sys_call_table: .quad sys_getpgrp .quad sys_getpagesize .quad alpha_ni_syscall /* 65 */ - .quad sys_vfork + .quad alpha_vfork .quad sys_newstat .quad sys_newlstat .quad alpha_ni_syscall .quad alpha_ni_syscall /* 70 */ - .quad osf_mmap + .quad sys_osf_mmap .quad alpha_ni_syscall .quad sys_munmap .quad sys_mprotect @@ -94,24 +94,24 @@ sys_call_table: .quad sys_setgroups /* 80 */ .quad alpha_ni_syscall .quad sys_setpgid - .quad osf_setitimer + .quad sys_osf_setitimer .quad alpha_ni_syscall .quad alpha_ni_syscall /* 85 */ - .quad osf_getitimer + .quad sys_osf_getitimer .quad sys_gethostname .quad sys_sethostname .quad sys_getdtablesize .quad sys_dup2 /* 90 */ .quad sys_newfstat .quad sys_fcntl - .quad osf_select + .quad sys_osf_select .quad sys_poll .quad sys_fsync /* 95 */ .quad sys_setpriority .quad sys_socket .quad sys_connect .quad sys_accept - .quad osf_getpriority /* 100 */ + .quad sys_osf_getpriority /* 100 */ .quad sys_send .quad sys_recv .quad sys_sigreturn @@ -123,22 +123,22 @@ sys_call_table: .quad alpha_ni_syscall .quad alpha_ni_syscall /* 110 */ .quad sys_sigsuspend - .quad osf_sigstack + .quad sys_osf_sigstack .quad sys_recvmsg .quad sys_sendmsg .quad alpha_ni_syscall /* 115 */ - .quad osf_gettimeofday - .quad osf_getrusage + .quad sys_osf_gettimeofday + .quad sys_osf_getrusage .quad sys_getsockopt .quad alpha_ni_syscall #ifdef CONFIG_OSF4_COMPAT - .quad osf_readv /* 120 */ - .quad osf_writev + .quad sys_osf_readv /* 120 */ + .quad sys_osf_writev #else .quad sys_readv /* 120 */ .quad sys_writev #endif - .quad osf_settimeofday + .quad sys_osf_settimeofday .quad sys_fchown .quad sys_fchmod .quad sys_recvfrom /* 125 */ @@ -154,7 +154,7 @@ sys_call_table: .quad sys_socketpair /* 135 */ .quad sys_mkdir .quad sys_rmdir - .quad osf_utimes + .quad sys_osf_utimes .quad alpha_ni_syscall .quad alpha_ni_syscall /* 140 */ .quad sys_getpeername @@ -172,16 +172,16 @@ sys_call_table: .quad alpha_ni_syscall .quad alpha_ni_syscall .quad alpha_ni_syscall /* 155 */ - .quad osf_sigaction + .quad sys_osf_sigaction .quad alpha_ni_syscall .quad alpha_ni_syscall - .quad osf_getdirentries - .quad osf_statfs /* 160 */ - .quad osf_fstatfs + .quad sys_osf_getdirentries + .quad sys_osf_statfs /* 160 */ + .quad sys_osf_fstatfs .quad alpha_ni_syscall .quad alpha_ni_syscall .quad alpha_ni_syscall - .quad osf_getdomainname /* 165 */ + .quad sys_osf_getdomainname /* 165 */ .quad sys_setdomainname .quad alpha_ni_syscall .quad alpha_ni_syscall @@ -224,7 +224,7 @@ sys_call_table: .quad sys_semctl .quad sys_semget /* 205 */ .quad sys_semop - .quad osf_utsname + .quad sys_osf_utsname .quad sys_lchown .quad sys_shmat .quad sys_shmctl /* 210 */ @@ -241,11 +241,11 @@ sys_call_table: .quad alpha_ni_syscall .quad alpha_ni_syscall .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall /* 225 */ - .quad alpha_ni_syscall - .quad alpha_ni_syscall - .quad alpha_ni_syscall + .quad sys_osf_stat + .quad sys_osf_lstat /* 225 */ + .quad sys_osf_fstat + .quad sys_osf_statfs64 + .quad sys_osf_fstatfs64 .quad alpha_ni_syscall .quad alpha_ni_syscall /* 230 */ .quad alpha_ni_syscall @@ -258,23 +258,23 @@ sys_call_table: .quad alpha_ni_syscall .quad alpha_ni_syscall .quad alpha_ni_syscall /* 240 */ - .quad osf_sysinfo + .quad sys_osf_sysinfo .quad alpha_ni_syscall .quad alpha_ni_syscall - .quad osf_proplist_syscall + .quad sys_osf_proplist_syscall .quad alpha_ni_syscall /* 245 */ .quad alpha_ni_syscall .quad alpha_ni_syscall .quad alpha_ni_syscall .quad alpha_ni_syscall .quad alpha_ni_syscall /* 250 */ - .quad osf_usleep_thread + .quad sys_osf_usleep_thread .quad alpha_ni_syscall .quad alpha_ni_syscall .quad sys_sysfs .quad alpha_ni_syscall /* 255 */ - .quad osf_getsysinfo - .quad osf_setsysinfo + .quad sys_osf_getsysinfo + .quad sys_osf_setsysinfo .quad alpha_ni_syscall .quad alpha_ni_syscall .quad alpha_ni_syscall /* 260 */ @@ -330,7 +330,7 @@ sys_call_table: .quad sys_ni_syscall /* 309: old get_kernel_syms */ .quad sys_syslog /* 310 */ .quad sys_reboot - .quad sys_clone + .quad alpha_clone .quad sys_uselib .quad sys_mlock .quad sys_munlock /* 315 */ @@ -360,7 +360,7 @@ sys_call_table: .quad sys_newuname .quad sys_nanosleep /* 340 */ .quad sys_mremap - .quad sys_nfsservctl + .quad sys_ni_syscall /* old nfsservctl */ .quad sys_setresuid .quad sys_getresuid .quad sys_pciconfig_read /* 345 */ @@ -495,8 +495,37 @@ sys_call_table: .quad sys_epoll_pwait .quad sys_utimensat /* 475 */ .quad sys_signalfd - .quad sys_ni_syscall + .quad sys_ni_syscall /* sys_timerfd */ .quad sys_eventfd + .quad sys_recvmmsg + .quad sys_fallocate /* 480 */ + .quad sys_timerfd_create + .quad sys_timerfd_settime + .quad sys_timerfd_gettime + .quad sys_signalfd4 + .quad sys_eventfd2 /* 485 */ + .quad sys_epoll_create1 + .quad sys_dup3 + .quad sys_pipe2 + .quad sys_inotify_init1 + .quad sys_preadv /* 490 */ + .quad sys_pwritev + .quad sys_rt_tgsigqueueinfo + .quad sys_perf_event_open + .quad sys_fanotify_init + .quad sys_fanotify_mark /* 495 */ + .quad sys_prlimit64 + .quad sys_name_to_handle_at + .quad sys_open_by_handle_at + .quad sys_clock_adjtime + .quad sys_syncfs /* 500 */ + .quad sys_setns + .quad sys_accept4 + .quad sys_sendmmsg + .quad sys_process_vm_readv + .quad sys_process_vm_writev /* 505 */ + .quad sys_kcmp + .quad sys_finit_module .size sys_call_table, . - sys_call_table .type sys_call_table, @object diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c index 75480cab089..ee39cee8064 100644 --- a/arch/alpha/kernel/time.c +++ b/arch/alpha/kernel/time.c @@ -3,13 +3,7 @@ * * Copyright (C) 1991, 1992, 1995, 1999, 2000 Linus Torvalds * - * This file contains the PC-specific time handling details: - * reading the RTC at bootup, etc.. - * 1994-07-02 Alan Modra - * fixed set_rtc_mmss, fixed time.year for >= 2000, new mktime - * 1995-03-26 Markus Kuhn - * fixed 500 ms bug at call to set_rtc_mmss, fixed DS12887 - * precision CMOS clock update + * This file contains the clocksource time handling. * 1997-09-10 Updated NTP code according to technical memorandum Jan '96 * "A Kernel Model for Precision Timekeeping" by Dave Mills * 1997-01-09 Adrian Sun @@ -21,9 +15,6 @@ * 1999-04-16 Thorsten Kranzkowski (dl8bcu@gmx.net) * fixed algorithm in do_gettimeofday() for calculating the precise time * from processor cycle counter (now taking lost_ticks into account) - * 2000-08-13 Jan-Benedict Glaw <jbglaw@lug-owl.de> - * Fixed time_init to be aware of epoches != 1900. This prevents - * booting up in 2048 for me;) Code is stolen from rtc.c. * 2003-06-03 R. Scott Bailey <scott.bailey@eds.com> * Tighten sanity in time_init from 1% (10,000 PPM) to 250 PPM */ @@ -41,123 +32,202 @@ #include <linux/init.h> #include <linux/bcd.h> #include <linux/profile.h> +#include <linux/irq_work.h> #include <asm/uaccess.h> #include <asm/io.h> #include <asm/hwrpb.h> -#include <asm/8253pit.h> #include <linux/mc146818rtc.h> #include <linux/time.h> #include <linux/timex.h> +#include <linux/clocksource.h> +#include <linux/clockchips.h> #include "proto.h" #include "irq_impl.h" -static int set_rtc_mmss(unsigned long); - DEFINE_SPINLOCK(rtc_lock); EXPORT_SYMBOL(rtc_lock); -#define TICK_SIZE (tick_nsec / 1000) +unsigned long est_cycle_freq; -/* - * Shift amount by which scaled_ticks_per_cycle is scaled. Shifting - * by 48 gives us 16 bits for HZ while keeping the accuracy good even - * for large CPU clock rates. - */ -#define FIX_SHIFT 48 - -/* lump static variables together for more efficient access: */ -static struct { - /* cycle counter last time it got invoked */ - __u32 last_time; - /* ticks/cycle * 2^48 */ - unsigned long scaled_ticks_per_cycle; - /* last time the CMOS clock got updated */ - time_t last_rtc_update; - /* partial unused tick */ - unsigned long partial_tick; -} state; +#ifdef CONFIG_IRQ_WORK -unsigned long est_cycle_freq; +DEFINE_PER_CPU(u8, irq_work_pending); + +#define set_irq_work_pending_flag() __get_cpu_var(irq_work_pending) = 1 +#define test_irq_work_pending() __get_cpu_var(irq_work_pending) +#define clear_irq_work_pending() __get_cpu_var(irq_work_pending) = 0 + +void arch_irq_work_raise(void) +{ + set_irq_work_pending_flag(); +} + +#else /* CONFIG_IRQ_WORK */ + +#define test_irq_work_pending() 0 +#define clear_irq_work_pending() + +#endif /* CONFIG_IRQ_WORK */ static inline __u32 rpcc(void) { - __u32 result; - asm volatile ("rpcc %0" : "=r"(result)); - return result; + return __builtin_alpha_rpcc(); } + + /* - * timer_interrupt() needs to keep up the real-time clock, - * as well as call the "do_timer()" routine every clocktick + * The RTC as a clock_event_device primitive. */ -irqreturn_t timer_interrupt(int irq, void *dev) + +static DEFINE_PER_CPU(struct clock_event_device, cpu_ce); + +irqreturn_t +rtc_timer_interrupt(int irq, void *dev) { - unsigned long delta; - __u32 now; - long nticks; + int cpu = smp_processor_id(); + struct clock_event_device *ce = &per_cpu(cpu_ce, cpu); -#ifndef CONFIG_SMP - /* Not SMP, do kernel PC profiling here. */ - profile_tick(CPU_PROFILING); -#endif + /* Don't run the hook for UNUSED or SHUTDOWN. */ + if (likely(ce->mode == CLOCK_EVT_MODE_PERIODIC)) + ce->event_handler(ce); - write_seqlock(&xtime_lock); + if (test_irq_work_pending()) { + clear_irq_work_pending(); + irq_work_run(); + } - /* - * Calculate how many ticks have passed since the last update, - * including any previous partial leftover. Save any resulting - * fraction for the next pass. - */ - now = rpcc(); - delta = now - state.last_time; - state.last_time = now; - delta = delta * state.scaled_ticks_per_cycle + state.partial_tick; - state.partial_tick = delta & ((1UL << FIX_SHIFT) - 1); - nticks = delta >> FIX_SHIFT; + return IRQ_HANDLED; +} - if (nticks) - do_timer(nticks); +static void +rtc_ce_set_mode(enum clock_event_mode mode, struct clock_event_device *ce) +{ + /* The mode member of CE is updated in generic code. + Since we only support periodic events, nothing to do. */ +} - /* - * If we have an externally synchronized Linux clock, then update - * CMOS clock accordingly every ~11 minutes. Set_rtc_mmss() has to be - * called as close as possible to 500 ms before the new second starts. - */ - if (ntp_synced() - && xtime.tv_sec > state.last_rtc_update + 660 - && xtime.tv_nsec >= 500000 - ((unsigned) TICK_SIZE) / 2 - && xtime.tv_nsec <= 500000 + ((unsigned) TICK_SIZE) / 2) { - int tmp = set_rtc_mmss(xtime.tv_sec); - state.last_rtc_update = xtime.tv_sec - (tmp ? 600 : 0); - } +static int +rtc_ce_set_next_event(unsigned long evt, struct clock_event_device *ce) +{ + /* This hook is for oneshot mode, which we don't support. */ + return -EINVAL; +} - write_sequnlock(&xtime_lock); +static void __init +init_rtc_clockevent(void) +{ + int cpu = smp_processor_id(); + struct clock_event_device *ce = &per_cpu(cpu_ce, cpu); + + *ce = (struct clock_event_device){ + .name = "rtc", + .features = CLOCK_EVT_FEAT_PERIODIC, + .rating = 100, + .cpumask = cpumask_of(cpu), + .set_mode = rtc_ce_set_mode, + .set_next_event = rtc_ce_set_next_event, + }; -#ifndef CONFIG_SMP - while (nticks--) - update_process_times(user_mode(get_irq_regs())); -#endif + clockevents_config_and_register(ce, CONFIG_HZ, 0, 0); +} + + +/* + * The QEMU clock as a clocksource primitive. + */ +static cycle_t +qemu_cs_read(struct clocksource *cs) +{ + return qemu_get_vmtime(); +} + +static struct clocksource qemu_cs = { + .name = "qemu", + .rating = 400, + .read = qemu_cs_read, + .mask = CLOCKSOURCE_MASK(64), + .flags = CLOCK_SOURCE_IS_CONTINUOUS, + .max_idle_ns = LONG_MAX +}; + + +/* + * The QEMU alarm as a clock_event_device primitive. + */ + +static void +qemu_ce_set_mode(enum clock_event_mode mode, struct clock_event_device *ce) +{ + /* The mode member of CE is updated for us in generic code. + Just make sure that the event is disabled. */ + qemu_set_alarm_abs(0); +} + +static int +qemu_ce_set_next_event(unsigned long evt, struct clock_event_device *ce) +{ + qemu_set_alarm_rel(evt); + return 0; +} + +static irqreturn_t +qemu_timer_interrupt(int irq, void *dev) +{ + int cpu = smp_processor_id(); + struct clock_event_device *ce = &per_cpu(cpu_ce, cpu); + + ce->event_handler(ce); return IRQ_HANDLED; } +static void __init +init_qemu_clockevent(void) +{ + int cpu = smp_processor_id(); + struct clock_event_device *ce = &per_cpu(cpu_ce, cpu); + + *ce = (struct clock_event_device){ + .name = "qemu", + .features = CLOCK_EVT_FEAT_ONESHOT, + .rating = 400, + .cpumask = cpumask_of(cpu), + .set_mode = qemu_ce_set_mode, + .set_next_event = qemu_ce_set_next_event, + }; + + clockevents_config_and_register(ce, NSEC_PER_SEC, 1000, LONG_MAX); +} + + void __init common_init_rtc(void) { - unsigned char x; + unsigned char x, sel = 0; /* Reset periodic interrupt frequency. */ - x = CMOS_READ(RTC_FREQ_SELECT) & 0x3f; - /* Test includes known working values on various platforms - where 0x26 is wrong; we refuse to change those. */ - if (x != 0x26 && x != 0x25 && x != 0x19 && x != 0x06) { - printk("Setting RTC_FREQ to 1024 Hz (%x)\n", x); - CMOS_WRITE(0x26, RTC_FREQ_SELECT); +#if CONFIG_HZ == 1024 || CONFIG_HZ == 1200 + x = CMOS_READ(RTC_FREQ_SELECT) & 0x3f; + /* Test includes known working values on various platforms + where 0x26 is wrong; we refuse to change those. */ + if (x != 0x26 && x != 0x25 && x != 0x19 && x != 0x06) { + sel = RTC_REF_CLCK_32KHZ + 6; } +#elif CONFIG_HZ == 256 || CONFIG_HZ == 128 || CONFIG_HZ == 64 || CONFIG_HZ == 32 + sel = RTC_REF_CLCK_32KHZ + __builtin_ffs(32768 / CONFIG_HZ); +#else +# error "Unknown HZ from arch/alpha/Kconfig" +#endif + if (sel) { + printk(KERN_INFO "Setting RTC_FREQ to %d Hz (%x)\n", + CONFIG_HZ, sel); + CMOS_WRITE(sel, RTC_FREQ_SELECT); + } /* Turn on periodic interrupts. */ x = CMOS_READ(RTC_CONTROL); @@ -180,7 +250,37 @@ common_init_rtc(void) init_rtc_irq(); } + +#ifndef CONFIG_ALPHA_WTINT +/* + * The RPCC as a clocksource primitive. + * + * While we have free-running timecounters running on all CPUs, and we make + * a half-hearted attempt in init_rtc_rpcc_info to sync the timecounter + * with the wall clock, that initialization isn't kept up-to-date across + * different time counters in SMP mode. Therefore we can only use this + * method when there's only one CPU enabled. + * + * When using the WTINT PALcall, the RPCC may shift to a lower frequency, + * or stop altogether, while waiting for the interrupt. Therefore we cannot + * use this method when WTINT is in use. + */ + +static cycle_t read_rpcc(struct clocksource *cs) +{ + return rpcc(); +} + +static struct clocksource clocksource_rpcc = { + .name = "rpcc", + .rating = 300, + .read = read_rpcc, + .mask = CLOCKSOURCE_MASK(32), + .flags = CLOCK_SOURCE_IS_CONTINUOUS +}; +#endif /* ALPHA_WTINT */ + /* Validate a computed cycle counter result against the known bounds for the given processor core. There's too much brokenness in the way of timing hardware for any one method to work everywhere. :-( @@ -294,10 +394,19 @@ rpcc_after_update_in_progress(void) void __init time_init(void) { - unsigned int year, mon, day, hour, min, sec, cc1, cc2, epoch; + unsigned int cc1, cc2; unsigned long cycle_freq, tolerance; long diff; + if (alpha_using_qemu) { + clocksource_register_hz(&qemu_cs, NSEC_PER_SEC); + init_qemu_clockevent(); + + timer_irqaction.handler = qemu_timer_interrupt; + init_rtc_irq(); + return; + } + /* Calibrate CPU clock -- attempt #1. */ if (!est_cycle_freq) est_cycle_freq = validate_cc_value(calibrate_cc_with_pit()); @@ -332,239 +441,25 @@ time_init(void) "and unable to estimate a proper value!\n"); } - /* From John Bowman <bowman@math.ualberta.ca>: allow the values - to settle, as the Update-In-Progress bit going low isn't good - enough on some hardware. 2ms is our guess; we haven't found - bogomips yet, but this is close on a 500Mhz box. */ - __delay(1000000); - - sec = CMOS_READ(RTC_SECONDS); - min = CMOS_READ(RTC_MINUTES); - hour = CMOS_READ(RTC_HOURS); - day = CMOS_READ(RTC_DAY_OF_MONTH); - mon = CMOS_READ(RTC_MONTH); - year = CMOS_READ(RTC_YEAR); - - if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { - BCD_TO_BIN(sec); - BCD_TO_BIN(min); - BCD_TO_BIN(hour); - BCD_TO_BIN(day); - BCD_TO_BIN(mon); - BCD_TO_BIN(year); - } - - /* PC-like is standard; used for year >= 70 */ - epoch = 1900; - if (year < 20) - epoch = 2000; - else if (year >= 20 && year < 48) - /* NT epoch */ - epoch = 1980; - else if (year >= 48 && year < 70) - /* Digital UNIX epoch */ - epoch = 1952; - - printk(KERN_INFO "Using epoch = %d\n", epoch); - - if ((year += epoch) < 1970) - year += 100; - - xtime.tv_sec = mktime(year, mon, day, hour, min, sec); - xtime.tv_nsec = 0; - - wall_to_monotonic.tv_sec -= xtime.tv_sec; - wall_to_monotonic.tv_nsec = 0; - - if (HZ > (1<<16)) { - extern void __you_loose (void); - __you_loose(); - } - - state.last_time = cc1; - state.scaled_ticks_per_cycle - = ((unsigned long) HZ << FIX_SHIFT) / cycle_freq; - state.last_rtc_update = 0; - state.partial_tick = 0L; + /* See above for restrictions on using clocksource_rpcc. */ +#ifndef CONFIG_ALPHA_WTINT + if (hwrpb->nr_processors == 1) + clocksource_register_hz(&clocksource_rpcc, cycle_freq); +#endif /* Startup the timer source. */ alpha_mv.init_rtc(); + init_rtc_clockevent(); } -/* - * Use the cycle counter to estimate an displacement from the last time - * tick. Unfortunately the Alpha designers made only the low 32-bits of - * the cycle counter active, so we overflow on 8.2 seconds on a 500MHz - * part. So we can't do the "find absolute time in terms of cycles" thing - * that the other ports do. - */ -void -do_gettimeofday(struct timeval *tv) -{ - unsigned long flags; - unsigned long sec, usec, seq; - unsigned long delta_cycles, delta_usec, partial_tick; - - do { - seq = read_seqbegin_irqsave(&xtime_lock, flags); - - delta_cycles = rpcc() - state.last_time; - sec = xtime.tv_sec; - usec = (xtime.tv_nsec / 1000); - partial_tick = state.partial_tick; - - } while (read_seqretry_irqrestore(&xtime_lock, seq, flags)); - +/* Initialize the clock_event_device for secondary cpus. */ #ifdef CONFIG_SMP - /* Until and unless we figure out how to get cpu cycle counters - in sync and keep them there, we can't use the rpcc tricks. */ - delta_usec = 0; -#else - /* - * usec = cycles * ticks_per_cycle * 2**48 * 1e6 / (2**48 * ticks) - * = cycles * (s_t_p_c) * 1e6 / (2**48 * ticks) - * = cycles * (s_t_p_c) * 15625 / (2**42 * ticks) - * - * which, given a 600MHz cycle and a 1024Hz tick, has a - * dynamic range of about 1.7e17, which is less than the - * 1.8e19 in an unsigned long, so we are safe from overflow. - * - * Round, but with .5 up always, since .5 to even is harder - * with no clear gain. - */ - - delta_usec = (delta_cycles * state.scaled_ticks_per_cycle - + partial_tick) * 15625; - delta_usec = ((delta_usec / ((1UL << (FIX_SHIFT-6-1)) * HZ)) + 1) / 2; -#endif - - usec += delta_usec; - if (usec >= 1000000) { - sec += 1; - usec -= 1000000; - } - - tv->tv_sec = sec; - tv->tv_usec = usec; -} - -EXPORT_SYMBOL(do_gettimeofday); - -int -do_settimeofday(struct timespec *tv) -{ - time_t wtm_sec, sec = tv->tv_sec; - long wtm_nsec, nsec = tv->tv_nsec; - unsigned long delta_nsec; - - if ((unsigned long)tv->tv_nsec >= NSEC_PER_SEC) - return -EINVAL; - - write_seqlock_irq(&xtime_lock); - - /* The offset that is added into time in do_gettimeofday above - must be subtracted out here to keep a coherent view of the - time. Without this, a full-tick error is possible. */ - -#ifdef CONFIG_SMP - delta_nsec = 0; -#else - delta_nsec = rpcc() - state.last_time; - delta_nsec = (delta_nsec * state.scaled_ticks_per_cycle - + state.partial_tick) * 15625; - delta_nsec = ((delta_nsec / ((1UL << (FIX_SHIFT-6-1)) * HZ)) + 1) / 2; - delta_nsec *= 1000; -#endif - - nsec -= delta_nsec; - - wtm_sec = wall_to_monotonic.tv_sec + (xtime.tv_sec - sec); - wtm_nsec = wall_to_monotonic.tv_nsec + (xtime.tv_nsec - nsec); - - set_normalized_timespec(&xtime, sec, nsec); - set_normalized_timespec(&wall_to_monotonic, wtm_sec, wtm_nsec); - - ntp_clear(); - - write_sequnlock_irq(&xtime_lock); - clock_was_set(); - return 0; -} - -EXPORT_SYMBOL(do_settimeofday); - - -/* - * In order to set the CMOS clock precisely, set_rtc_mmss has to be - * called 500 ms after the second nowtime has started, because when - * nowtime is written into the registers of the CMOS clock, it will - * jump to the next second precisely 500 ms later. Check the Motorola - * MC146818A or Dallas DS12887 data sheet for details. - * - * BUG: This routine does not handle hour overflow properly; it just - * sets the minutes. Usually you won't notice until after reboot! - */ - - -static int -set_rtc_mmss(unsigned long nowtime) +void __init +init_clockevent(void) { - int retval = 0; - int real_seconds, real_minutes, cmos_minutes; - unsigned char save_control, save_freq_select; - - /* irq are locally disabled here */ - spin_lock(&rtc_lock); - /* Tell the clock it's being set */ - save_control = CMOS_READ(RTC_CONTROL); - CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL); - - /* Stop and reset prescaler */ - save_freq_select = CMOS_READ(RTC_FREQ_SELECT); - CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT); - - cmos_minutes = CMOS_READ(RTC_MINUTES); - if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) - BCD_TO_BIN(cmos_minutes); - - /* - * since we're only adjusting minutes and seconds, - * don't interfere with hour overflow. This avoids - * messing with unknown time zones but requires your - * RTC not to be off by more than 15 minutes - */ - real_seconds = nowtime % 60; - real_minutes = nowtime / 60; - if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1) { - /* correct for half hour time zone */ - real_minutes += 30; - } - real_minutes %= 60; - - if (abs(real_minutes - cmos_minutes) < 30) { - if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) { - BIN_TO_BCD(real_seconds); - BIN_TO_BCD(real_minutes); - } - CMOS_WRITE(real_seconds,RTC_SECONDS); - CMOS_WRITE(real_minutes,RTC_MINUTES); - } else { - printk(KERN_WARNING - "set_rtc_mmss: can't update from %d to %d\n", - cmos_minutes, real_minutes); - retval = -1; - } - - /* The following flags have to be released exactly in this order, - * otherwise the DS12887 (popular MC146818A clone with integrated - * battery and quartz) will not reset the oscillator and will not - * update precisely 500 ms later. You won't find this mentioned in - * the Dallas Semiconductor data sheets, but who believes data - * sheets anyway ... -- Markus Kuhn - */ - CMOS_WRITE(save_control, RTC_CONTROL); - CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT); - spin_unlock(&rtc_lock); - - return retval; + if (alpha_using_qemu) + init_qemu_clockevent(); + else + init_rtc_clockevent(); } +#endif diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c index 2dc7f9fed21..9c4c189eb22 100644 --- a/arch/alpha/kernel/traps.c +++ b/arch/alpha/kernel/traps.c @@ -8,14 +8,15 @@ * This file initializes the trap entry points */ +#include <linux/jiffies.h> #include <linux/mm.h> #include <linux/sched.h> #include <linux/tty.h> #include <linux/delay.h> -#include <linux/smp_lock.h> #include <linux/module.h> #include <linux/init.h> #include <linux/kallsyms.h> +#include <linux/ratelimit.h> #include <asm/gentrap.h> #include <asm/uaccess.h> @@ -23,6 +24,7 @@ #include <asm/sysinfo.h> #include <asm/hwrpb.h> #include <asm/mmu_context.h> +#include <asm/special_insns.h> #include "proto.h" @@ -30,7 +32,7 @@ static int opDEC_fix; -static void __init +static void opDEC_check(void) { __asm__ __volatile__ ( @@ -64,8 +66,8 @@ dik_show_regs(struct pt_regs *regs, unsigned long *r9_15) { printk("pc = [<%016lx>] ra = [<%016lx>] ps = %04lx %s\n", regs->pc, regs->r26, regs->ps, print_tainted()); - print_symbol("pc is at %s\n", regs->pc); - print_symbol("ra is at %s\n", regs->r26 ); + printk("pc is at %pSR\n", (void *)regs->pc); + printk("ra is at %pSR\n", (void *)regs->r26); printk("v0 = %016lx t0 = %016lx t1 = %016lx\n", regs->r0, regs->r1, regs->r2); printk("t2 = %016lx t3 = %016lx t4 = %016lx\n", @@ -130,9 +132,7 @@ dik_show_trace(unsigned long *sp) continue; if (tmp >= (unsigned long) &_etext) continue; - printk("[<%lx>]", tmp); - print_symbol(" %s", tmp); - printk("\n"); + printk("[<%lx>] %pSR\n", tmp, (void *)tmp); if (i > 40) { printk(" ..."); break; @@ -167,13 +167,6 @@ void show_stack(struct task_struct *task, unsigned long *sp) dik_show_trace(sp); } -void dump_stack(void) -{ - show_stack(NULL, NULL); -} - -EXPORT_SYMBOL(dump_stack); - void die_if_kernel(char * str, struct pt_regs *regs, long err, unsigned long *r9_15) { @@ -184,7 +177,7 @@ die_if_kernel(char * str, struct pt_regs *regs, long err, unsigned long *r9_15) #endif printk("%s(%d): %s %ld\n", current->comm, task_pid_nr(current), str, err); dik_show_regs(regs, r9_15); - add_taint(TAINT_DIE); + add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE); dik_show_trace((unsigned long *)(regs+1)); dik_show_code((unsigned int *)regs->pc); @@ -248,6 +241,21 @@ do_entIF(unsigned long type, struct pt_regs *regs) (const char *)(data[1] | (long)data[2] << 32), data[0]); } +#ifdef CONFIG_ALPHA_WTINT + if (type == 4) { + /* If CALL_PAL WTINT is totally unsupported by the + PALcode, e.g. MILO, "emulate" it by overwriting + the insn. */ + unsigned int *pinsn + = (unsigned int *) regs->pc - 1; + if (*pinsn == PAL_wtint) { + *pinsn = 0x47e01400; /* mov 0,$0 */ + imb(); + regs->r0 = 0; + return; + } + } +#endif /* ALPHA_WTINT */ die_if_kernel((type == 1 ? "Kernel Bug" : "Instruction fault"), regs, type, NULL); } @@ -446,7 +454,7 @@ struct unaligned_stat { /* Macro for exception fixup code to access integer registers. */ -#define una_reg(r) (regs->regs[(r) >= 16 && (r) <= 18 ? (r)+19 : (r)]) +#define una_reg(r) (_regs[(r) >= 16 && (r) <= 18 ? (r)+19 : (r)]) asmlinkage void @@ -455,6 +463,7 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg, { long error, tmp1, tmp2, tmp3, tmp4; unsigned long pc = regs->pc - 4; + unsigned long *_regs = regs->regs; const struct exception_table_entry *fixup; unaligned[0].count++; @@ -620,8 +629,7 @@ do_entUna(void * va, unsigned long opcode, unsigned long reg, return; } - lock_kernel(); - printk("Bad unaligned kernel access at %016lx: %p %lx %ld\n", + printk("Bad unaligned kernel access at %016lx: %p %lx %lu\n", pc, va, opcode, reg); do_exit(SIGSEGV); @@ -643,7 +651,6 @@ got_exception: * Yikes! No one to forward the exception to. * Since the registers are in a weird format, dump them ourselves. */ - lock_kernel(); printk("%s(%d): unhandled unaligned exception\n", current->comm, task_pid_nr(current)); @@ -769,8 +776,7 @@ asmlinkage void do_entUnaUser(void __user * va, unsigned long opcode, unsigned long reg, struct pt_regs *regs) { - static int cnt = 0; - static long last_time = 0; + static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5); unsigned long tmp1, tmp2, tmp3, tmp4; unsigned long fake_reg, *reg_addr = &fake_reg; @@ -780,21 +786,17 @@ do_entUnaUser(void __user * va, unsigned long opcode, /* Check the UAC bits to decide what the user wants us to do with the unaliged access. */ - if (!test_thread_flag (TIF_UAC_NOPRINT)) { - if (cnt >= 5 && jiffies - last_time > 5*HZ) { - cnt = 0; - } - if (++cnt < 5) { + if (!(current_thread_info()->status & TS_UAC_NOPRINT)) { + if (__ratelimit(&ratelimit)) { printk("%s(%d): unaligned trap at %016lx: %p %lx %ld\n", current->comm, task_pid_nr(current), regs->pc - 4, va, opcode, reg); } - last_time = jiffies; } - if (test_thread_flag (TIF_UAC_SIGBUS)) + if ((current_thread_info()->status & TS_UAC_SIGBUS)) goto give_sigbus; /* Not sure why you'd want to use this, but... */ - if (test_thread_flag (TIF_UAC_NOFIX)) + if ((current_thread_info()->status & TS_UAC_NOFIX)) return; /* Don't bother reading ds in the access check since we already @@ -1070,7 +1072,7 @@ give_sigbus: return; } -void __init +void trap_init(void) { /* Tell PAL-code what global pointer we want in the kernel. */ diff --git a/arch/alpha/kernel/vmlinux.lds.S b/arch/alpha/kernel/vmlinux.lds.S index f13249be17c..647b84c1538 100644 --- a/arch/alpha/kernel/vmlinux.lds.S +++ b/arch/alpha/kernel/vmlinux.lds.S @@ -1,5 +1,8 @@ #include <asm-generic/vmlinux.lds.h> +#include <asm/thread_info.h> +#include <asm/cache.h> #include <asm/page.h> +#include <asm/setup.h> OUTPUT_FORMAT("elf64-alpha") OUTPUT_ARCH(alpha) @@ -16,103 +19,38 @@ SECTIONS _text = .; /* Text and read-only data */ .text : { - *(.text.head) + HEAD_TEXT TEXT_TEXT SCHED_TEXT LOCK_TEXT *(.fixup) *(.gnu.warning) } :kernel + swapper_pg_dir = SWAPPER_PGD; _etext = .; /* End of text section */ - /* Exception table */ - . = ALIGN(16); - __ex_table : { - __start___ex_table = .; - *(__ex_table) - __stop___ex_table = .; - } - NOTES :kernel :note .dummy : { *(.dummy) } :kernel RODATA + EXCEPTION_TABLE(16) /* Will be freed after init */ - . = ALIGN(PAGE_SIZE); - /* Init code and data */ - __init_begin = .; - .init.text : { - _sinittext = .; - INIT_TEXT - _einittext = .; - } - .init.data : { - INIT_DATA - } - - . = ALIGN(16); - .init.setup : { - __setup_start = .; - *(.init.setup) - __setup_end = .; - } - - . = ALIGN(8); - .initcall.init : { - __initcall_start = .; - INITCALLS - __initcall_end = .; - } - -#ifdef CONFIG_BLK_DEV_INITRD - . = ALIGN(PAGE_SIZE); - .init.ramfs : { - __initramfs_start = .; - *(.init.ramfs) - __initramfs_end = .; - } -#endif - - . = ALIGN(8); - .con_initcall.init : { - __con_initcall_start = .; - *(.con_initcall.init) - __con_initcall_end = .; - } - - . = ALIGN(8); - SECURITY_INIT - - PERCPU(PAGE_SIZE) - - . = ALIGN(2 * PAGE_SIZE); + __init_begin = ALIGN(PAGE_SIZE); + INIT_TEXT_SECTION(PAGE_SIZE) + INIT_DATA_SECTION(16) + PERCPU_SECTION(L1_CACHE_BYTES) + /* Align to THREAD_SIZE rather than PAGE_SIZE here so any padding page + needed for the THREAD_SIZE aligned init_task gets freed after init */ + . = ALIGN(THREAD_SIZE); __init_end = .; /* Freed after init ends here */ - /* Note 2 page alignment above. */ - .data.init_thread : { - *(.data.init_thread) - } - - . = ALIGN(PAGE_SIZE); - .data.page_aligned : { - *(.data.page_aligned) - } - - . = ALIGN(64); - .data.cacheline_aligned : { - *(.data.cacheline_aligned) - } - + _sdata = .; /* Start of rw data section */ _data = .; - /* Data */ - .data : { - DATA_DATA - CONSTRUCTORS - } + RW_DATA_SECTION(L1_CACHE_BYTES, PAGE_SIZE, THREAD_SIZE) .got : { *(.got) @@ -122,25 +60,9 @@ SECTIONS } _edata = .; /* End of data section */ - __bss_start = .; - .sbss : { - *(.sbss) - *(.scommon) - } - .bss : { - *(.bss) - *(COMMON) - } - __bss_stop = .; + BSS_SECTION(0, 0, 0) _end = .; - /* Sections to be discarded */ - /DISCARD/ : { - EXIT_TEXT - EXIT_DATA - *(.exitcall.exit) - } - .mdebug 0 : { *(.mdebug) } @@ -150,4 +72,6 @@ SECTIONS STABS_DEBUG DWARF_DEBUG + + DISCARDS } |