diff options
Diffstat (limited to 'arch/sparc/kernel')
107 files changed, 2716 insertions, 3424 deletions
diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile index 6cf591b7e1c..7cf9c6ea3f1 100644 --- a/arch/sparc/kernel/Makefile +++ b/arch/sparc/kernel/Makefile @@ -1,3 +1,4 @@ + # # Makefile for the linux kernel. # @@ -41,7 +42,6 @@ obj-y += time_$(BITS).o obj-$(CONFIG_SPARC32) += windows.o obj-y += cpu.o obj-$(CONFIG_SPARC32) += devices.o -obj-$(CONFIG_SPARC32) += tadpole.o obj-y += ptrace_$(BITS).o obj-y += unaligned_$(BITS).o obj-y += una_asm_$(BITS).o @@ -74,7 +74,8 @@ obj-y += dma.o obj-$(CONFIG_PCIC_PCI) += pcic.o obj-$(CONFIG_LEON_PCI) += leon_pci.o -obj-$(CONFIG_GRPCI2) += leon_pci_grpci2.o +obj-$(CONFIG_SPARC_GRPCI2)+= leon_pci_grpci2.o +obj-$(CONFIG_SPARC_GRPCI1)+= leon_pci_grpci1.o obj-$(CONFIG_SMP) += trampoline_$(BITS).o smp_$(BITS).o obj-$(CONFIG_SPARC32_SMP) += sun4m_smp.o sun4d_smp.o leon_smp.o @@ -98,13 +99,10 @@ obj-$(CONFIG_STACKTRACE) += stacktrace.o obj-$(CONFIG_SPARC64_PCI) += pci.o pci_common.o psycho_common.o obj-$(CONFIG_SPARC64_PCI) += pci_psycho.o pci_sabre.o pci_schizo.o obj-$(CONFIG_SPARC64_PCI) += pci_sun4v.o pci_sun4v_asm.o pci_fire.o -obj-$(CONFIG_PCI_MSI) += pci_msi.o +obj-$(CONFIG_SPARC64_PCI_MSI) += pci_msi.o obj-$(CONFIG_COMPAT) += sys32.o sys_sparc32.o signal32.o -# sparc64 cpufreq -obj-$(CONFIG_US3_FREQ) += us3_cpufreq.o -obj-$(CONFIG_US2E_FREQ) += us2e_cpufreq.o obj-$(CONFIG_US3_MC) += chmc.o obj-$(CONFIG_KPROBES) += kprobes.o diff --git a/arch/sparc/kernel/apc.c b/arch/sparc/kernel/apc.c index 812e10bbb0b..eefda32b595 100644 --- a/arch/sparc/kernel/apc.c +++ b/arch/sparc/kernel/apc.c @@ -20,6 +20,7 @@ #include <asm/uaccess.h> #include <asm/auxio.h> #include <asm/apc.h> +#include <asm/processor.h> /* Debugging * @@ -31,7 +32,7 @@ #define APC_DEVNAME "apc" static u8 __iomem *regs; -static int apc_no_idle __devinitdata = 0; +static int apc_no_idle = 0; #define apc_readb(offs) (sbus_readb(regs+offs)) #define apc_writeb(val, offs) (sbus_writeb(val, regs+offs)) @@ -138,7 +139,7 @@ static const struct file_operations apc_fops = { static struct miscdevice apc_miscdev = { APC_MINOR, APC_DEVNAME, &apc_fops }; -static int __devinit apc_probe(struct platform_device *op) +static int apc_probe(struct platform_device *op) { int err; @@ -158,7 +159,7 @@ static int __devinit apc_probe(struct platform_device *op) /* Assign power management IDLE handler */ if (!apc_no_idle) - pm_idle = apc_swift_idle; + sparc_idle = apc_swift_idle; printk(KERN_INFO "%s: power management initialized%s\n", APC_DEVNAME, apc_no_idle ? " (CPU idle disabled)" : ""); diff --git a/arch/sparc/kernel/asm-offsets.c b/arch/sparc/kernel/asm-offsets.c index 68f7e1118e9..f76389a3234 100644 --- a/arch/sparc/kernel/asm-offsets.c +++ b/arch/sparc/kernel/asm-offsets.c @@ -14,6 +14,8 @@ // #include <linux/mm.h> #include <linux/kbuild.h> +#include <asm/hibernate.h> + #ifdef CONFIG_SPARC32 int sparc32_foo(void) { @@ -24,6 +26,19 @@ int sparc32_foo(void) #else int sparc64_foo(void) { +#ifdef CONFIG_HIBERNATION + BLANK(); + OFFSET(SC_REG_FP, saved_context, fp); + OFFSET(SC_REG_CWP, saved_context, cwp); + OFFSET(SC_REG_WSTATE, saved_context, wstate); + + OFFSET(SC_REG_TICK, saved_context, tick); + OFFSET(SC_REG_PSTATE, saved_context, pstate); + + OFFSET(SC_REG_G4, saved_context, g4); + OFFSET(SC_REG_G5, saved_context, g5); + OFFSET(SC_REG_G6, saved_context, g6); +#endif return 0; } #endif @@ -34,6 +49,8 @@ int foo(void) DEFINE(AOFF_task_thread, offsetof(struct task_struct, thread)); BLANK(); DEFINE(AOFF_mm_context, offsetof(struct mm_struct, context)); + BLANK(); + DEFINE(VMA_VM_MM, offsetof(struct vm_area_struct, vm_mm)); /* DEFINE(NUM_USER_SEGMENTS, TASK_SIZE>>28); */ return 0; diff --git a/arch/sparc/kernel/audit.c b/arch/sparc/kernel/audit.c index 8fff0ac63d5..24361b494a9 100644 --- a/arch/sparc/kernel/audit.c +++ b/arch/sparc/kernel/audit.c @@ -3,6 +3,8 @@ #include <linux/audit.h> #include <asm/unistd.h> +#include "kernel.h" + static unsigned dir_class[] = { #include <asm-generic/audit_dir_write.h> ~0U @@ -40,7 +42,6 @@ int audit_classify_arch(int arch) int audit_classify_syscall(int abi, unsigned syscall) { #ifdef CONFIG_COMPAT - extern int sparc32_classify_syscall(unsigned); if (abi == AUDIT_ARCH_SPARC) return sparc32_classify_syscall(syscall); #endif @@ -61,11 +62,6 @@ int audit_classify_syscall(int abi, unsigned syscall) static int __init audit_classes_init(void) { #ifdef CONFIG_COMPAT - extern __u32 sparc32_dir_class[]; - extern __u32 sparc32_write_class[]; - extern __u32 sparc32_read_class[]; - extern __u32 sparc32_chattr_class[]; - extern __u32 sparc32_signal_class[]; audit_register_class(AUDIT_CLASS_WRITE_32, sparc32_write_class); audit_register_class(AUDIT_CLASS_READ_32, sparc32_read_class); audit_register_class(AUDIT_CLASS_DIR_WRITE_32, sparc32_dir_class); diff --git a/arch/sparc/kernel/auxio_32.c b/arch/sparc/kernel/auxio_32.c index e20cc55fb76..ae88c223e4d 100644 --- a/arch/sparc/kernel/auxio_32.c +++ b/arch/sparc/kernel/auxio_32.c @@ -9,12 +9,15 @@ #include <linux/of.h> #include <linux/of_device.h> #include <linux/export.h> + #include <asm/oplib.h> #include <asm/io.h> #include <asm/auxio.h> #include <asm/string.h> /* memset(), Linux has no bzero() */ #include <asm/cpu_type.h> +#include "kernel.h" + /* Probe and map in the Auxiliary I/O register */ /* auxio_register is not static because it is referenced @@ -103,7 +106,7 @@ EXPORT_SYMBOL(set_auxio); /* sun4m power control register (AUXIO2) */ -volatile unsigned char * auxio_power_register = NULL; +volatile u8 __iomem *auxio_power_register = NULL; void __init auxio_power_probe(void) { @@ -127,8 +130,8 @@ void __init auxio_power_probe(void) r.flags = regs.which_io & 0xF; r.start = regs.phys_addr; r.end = regs.phys_addr + regs.reg_size - 1; - auxio_power_register = (unsigned char *) of_ioremap(&r, 0, - regs.reg_size, "auxpower"); + auxio_power_register = + (u8 __iomem *)of_ioremap(&r, 0, regs.reg_size, "auxpower"); /* Display a quick message on the console. */ if (auxio_power_register) diff --git a/arch/sparc/kernel/auxio_64.c b/arch/sparc/kernel/auxio_64.c index 773091ac71a..86e55778e4a 100644 --- a/arch/sparc/kernel/auxio_64.c +++ b/arch/sparc/kernel/auxio_64.c @@ -102,7 +102,7 @@ static const struct of_device_id auxio_match[] = { MODULE_DEVICE_TABLE(of, auxio_match); -static int __devinit auxio_probe(struct platform_device *dev) +static int auxio_probe(struct platform_device *dev) { struct device_node *dp = dev->dev.of_node; unsigned long size; diff --git a/arch/sparc/kernel/btext.c b/arch/sparc/kernel/btext.c index 57073e56ba9..987f7ec497c 100644 --- a/arch/sparc/kernel/btext.c +++ b/arch/sparc/kernel/btext.c @@ -137,7 +137,7 @@ static void scrollscreen(void) } #endif /* ndef NO_SCROLL */ -void btext_drawchar(char c) +static void btext_drawchar(char c) { int cline = 0; #ifdef NO_SCROLL diff --git a/arch/sparc/kernel/central.c b/arch/sparc/kernel/central.c index 9708851a8b9..052b5a44318 100644 --- a/arch/sparc/kernel/central.c +++ b/arch/sparc/kernel/central.c @@ -33,7 +33,7 @@ struct fhc { struct platform_device leds_pdev; }; -static int __devinit clock_board_calc_nslots(struct clock_board *p) +static int clock_board_calc_nslots(struct clock_board *p) { u8 reg = upa_readb(p->clock_regs + CLOCK_STAT1) & 0xc0; @@ -60,7 +60,7 @@ static int __devinit clock_board_calc_nslots(struct clock_board *p) } } -static int __devinit clock_board_probe(struct platform_device *op) +static int clock_board_probe(struct platform_device *op) { struct clock_board *p = kzalloc(sizeof(*p), GFP_KERNEL); int err = -ENOMEM; @@ -157,7 +157,7 @@ static struct platform_driver clock_board_driver = { }, }; -static int __devinit fhc_probe(struct platform_device *op) +static int fhc_probe(struct platform_device *op) { struct fhc *p = kzalloc(sizeof(*p), GFP_KERNEL); int err = -ENOMEM; diff --git a/arch/sparc/kernel/chmc.c b/arch/sparc/kernel/chmc.c index 5f450260981..dbb210d74e2 100644 --- a/arch/sparc/kernel/chmc.c +++ b/arch/sparc/kernel/chmc.c @@ -336,9 +336,9 @@ static int jbusmc_print_dimm(int syndrome_code, return 0; } -static u64 __devinit jbusmc_dimm_group_size(u64 base, - const struct linux_prom64_registers *mem_regs, - int num_mem_regs) +static u64 jbusmc_dimm_group_size(u64 base, + const struct linux_prom64_registers *mem_regs, + int num_mem_regs) { u64 max = base + (8UL * 1024 * 1024 * 1024); u64 max_seen = base; @@ -363,10 +363,10 @@ static u64 __devinit jbusmc_dimm_group_size(u64 base, return max_seen - base; } -static void __devinit jbusmc_construct_one_dimm_group(struct jbusmc *p, - unsigned long index, - const struct linux_prom64_registers *mem_regs, - int num_mem_regs) +static void jbusmc_construct_one_dimm_group(struct jbusmc *p, + unsigned long index, + const struct linux_prom64_registers *mem_regs, + int num_mem_regs) { struct jbusmc_dimm_group *dp = &p->dimm_groups[index]; @@ -378,9 +378,9 @@ static void __devinit jbusmc_construct_one_dimm_group(struct jbusmc *p, dp->size = jbusmc_dimm_group_size(dp->base_addr, mem_regs, num_mem_regs); } -static void __devinit jbusmc_construct_dimm_groups(struct jbusmc *p, - const struct linux_prom64_registers *mem_regs, - int num_mem_regs) +static void jbusmc_construct_dimm_groups(struct jbusmc *p, + const struct linux_prom64_registers *mem_regs, + int num_mem_regs) { if (p->mc_reg_1 & JB_MC_REG1_DIMM1_BANK0) { jbusmc_construct_one_dimm_group(p, 0, mem_regs, num_mem_regs); @@ -392,7 +392,7 @@ static void __devinit jbusmc_construct_dimm_groups(struct jbusmc *p, } } -static int __devinit jbusmc_probe(struct platform_device *op) +static int jbusmc_probe(struct platform_device *op) { const struct linux_prom64_registers *mem_regs; struct device_node *mem_node; @@ -689,7 +689,7 @@ static void chmc_fetch_decode_regs(struct chmc *p) chmc_read_mcreg(p, CHMCTRL_DECODE4)); } -static int __devinit chmc_probe(struct platform_device *op) +static int chmc_probe(struct platform_device *op) { struct device_node *dp = op->dev.of_node; unsigned long ver; @@ -763,7 +763,7 @@ out_free: goto out; } -static int __devinit us3mc_probe(struct platform_device *op) +static int us3mc_probe(struct platform_device *op) { if (mc_type == MC_TYPE_SAFARI) return chmc_probe(op); @@ -772,21 +772,21 @@ static int __devinit us3mc_probe(struct platform_device *op) return -ENODEV; } -static void __devexit chmc_destroy(struct platform_device *op, struct chmc *p) +static void chmc_destroy(struct platform_device *op, struct chmc *p) { list_del(&p->list); of_iounmap(&op->resource[0], p->regs, 0x48); kfree(p); } -static void __devexit jbusmc_destroy(struct platform_device *op, struct jbusmc *p) +static void jbusmc_destroy(struct platform_device *op, struct jbusmc *p) { mc_list_del(&p->list); of_iounmap(&op->resource[0], p->regs, JBUSMC_REGS_SIZE); kfree(p); } -static int __devexit us3mc_remove(struct platform_device *op) +static int us3mc_remove(struct platform_device *op) { void *p = dev_get_drvdata(&op->dev); @@ -814,7 +814,7 @@ static struct platform_driver us3mc_driver = { .of_match_table = us3mc_match, }, .probe = us3mc_probe, - .remove = __devexit_p(us3mc_remove), + .remove = us3mc_remove, }; static inline bool us3mc_platform(void) diff --git a/arch/sparc/kernel/compat_audit.c b/arch/sparc/kernel/compat_audit.c index d865575b25b..7062263d09c 100644 --- a/arch/sparc/kernel/compat_audit.c +++ b/arch/sparc/kernel/compat_audit.c @@ -1,5 +1,6 @@ #define __32bit_syscall_numbers__ #include <asm/unistd.h> +#include "kernel.h" unsigned sparc32_dir_class[] = { #include <asm-generic/audit_dir_write.h> diff --git a/arch/sparc/kernel/cpu.c b/arch/sparc/kernel/cpu.c index a6c94a2bf9d..82a3a71c451 100644 --- a/arch/sparc/kernel/cpu.c +++ b/arch/sparc/kernel/cpu.c @@ -22,6 +22,7 @@ #include <asm/cpudata.h> #include "kernel.h" +#include "entry.h" DEFINE_PER_CPU(cpuinfo_sparc, __cpu_data) = { 0 }; EXPORT_PER_CPU_SYMBOL(__cpu_data); @@ -493,6 +494,12 @@ static void __init sun4v_cpu_probe(void) sparc_pmu_type = "niagara5"; break; + case SUN4V_CHIP_SPARC64X: + sparc_cpu_type = "SPARC64-X"; + sparc_fpu_type = "SPARC64-X integrated FPU"; + sparc_pmu_type = "sparc64-x"; + break; + default: printk(KERN_WARNING "CPU: Unknown sun4v cpu type [%s]\n", prom_cpu_compatible); diff --git a/arch/sparc/kernel/cpumap.c b/arch/sparc/kernel/cpumap.c index e4de74c2c9b..de1c844dfab 100644 --- a/arch/sparc/kernel/cpumap.c +++ b/arch/sparc/kernel/cpumap.c @@ -6,7 +6,6 @@ #include <linux/export.h> #include <linux/slab.h> #include <linux/kernel.h> -#include <linux/init.h> #include <linux/cpumask.h> #include <linux/spinlock.h> #include <asm/cpudata.h> @@ -327,6 +326,7 @@ static int iterate_cpu(struct cpuinfo_tree *t, unsigned int root_index) case SUN4V_CHIP_NIAGARA3: case SUN4V_CHIP_NIAGARA4: case SUN4V_CHIP_NIAGARA5: + case SUN4V_CHIP_SPARC64X: rover_inc_table = niagara_iterate_method; break; default: diff --git a/arch/sparc/kernel/cpumap.h b/arch/sparc/kernel/cpumap.h index e639880ab86..9dac398c434 100644 --- a/arch/sparc/kernel/cpumap.h +++ b/arch/sparc/kernel/cpumap.h @@ -2,8 +2,8 @@ #define _CPUMAP_H #ifdef CONFIG_SMP -extern void cpu_map_rebuild(void); -extern int map_to_cpu(unsigned int index); +void cpu_map_rebuild(void); +int map_to_cpu(unsigned int index); #define cpu_map_init() cpu_map_rebuild() #else #define cpu_map_init() do {} while (0) diff --git a/arch/sparc/kernel/devices.c b/arch/sparc/kernel/devices.c index 3d465e87f7e..8d5d09f09ca 100644 --- a/arch/sparc/kernel/devices.c +++ b/arch/sparc/kernel/devices.c @@ -19,8 +19,9 @@ #include <asm/smp.h> #include <asm/cpudata.h> #include <asm/cpu_type.h> +#include <asm/setup.h> -extern void clock_stop_probe(void); /* tadpole.c */ +#include "kernel.h" static char *cpu_mid_prop(void) { @@ -131,11 +132,6 @@ void __init device_scan(void) } #endif /* !CONFIG_SMP */ - { - extern void auxio_probe(void); - extern void auxio_power_probe(void); - auxio_probe(); - auxio_power_probe(); - } - clock_stop_probe(); + auxio_probe(); + auxio_power_probe(); } diff --git a/arch/sparc/kernel/ds.c b/arch/sparc/kernel/ds.c index f09257c8610..dff60abbea0 100644 --- a/arch/sparc/kernel/ds.c +++ b/arch/sparc/kernel/ds.c @@ -29,7 +29,7 @@ #define DRV_MODULE_VERSION "1.0" #define DRV_MODULE_RELDATE "Jul 11, 2007" -static char version[] __devinitdata = +static char version[] = DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; MODULE_AUTHOR("David S. Miller (davem@davemloft.net)"); MODULE_DESCRIPTION("Sun LDOM domain services driver"); @@ -528,10 +528,8 @@ static void dr_cpu_mark(struct ds_data *resp, int cpu, int ncpus, } } -static int __cpuinit dr_cpu_configure(struct ds_info *dp, - struct ds_cap_state *cp, - u64 req_num, - cpumask_t *mask) +static int dr_cpu_configure(struct ds_info *dp, struct ds_cap_state *cp, + u64 req_num, cpumask_t *mask) { struct ds_data *resp; int resp_len, ncpus, cpu; @@ -627,9 +625,8 @@ static int dr_cpu_unconfigure(struct ds_info *dp, return 0; } -static void __cpuinit dr_cpu_data(struct ds_info *dp, - struct ds_cap_state *cp, - void *buf, int len) +static void dr_cpu_data(struct ds_info *dp, struct ds_cap_state *cp, void *buf, + int len) { struct ds_data *data = buf; struct dr_cpu_tag *tag = (struct dr_cpu_tag *) (data + 1); @@ -783,6 +780,16 @@ void ldom_set_var(const char *var, const char *value) char *base, *p; int msg_len, loops; + if (strlen(var) + strlen(value) + 2 > + sizeof(pkt) - sizeof(pkt.header)) { + printk(KERN_ERR PFX + "contents length: %zu, which more than max: %lu," + "so could not set (%s) variable to (%s).\n", + strlen(var) + strlen(value) + 2, + sizeof(pkt) - sizeof(pkt.header), var, value); + return; + } + memset(&pkt, 0, sizeof(pkt)); pkt.header.data.tag.type = DS_DATA; pkt.header.data.handle = cp->handle; @@ -842,8 +849,8 @@ void ldom_reboot(const char *boot_command) if (boot_command && strlen(boot_command)) { unsigned long len; - strcpy(full_boot_str, "boot "); - strcpy(full_boot_str + strlen("boot "), boot_command); + snprintf(full_boot_str, sizeof(full_boot_str), "boot %s", + boot_command); len = strlen(full_boot_str); if (reboot_data_supported) { @@ -1146,8 +1153,7 @@ static void ds_event(void *arg, int event) spin_unlock_irqrestore(&ds_lock, flags); } -static int __devinit ds_probe(struct vio_dev *vdev, - const struct vio_device_id *id) +static int ds_probe(struct vio_dev *vdev, const struct vio_device_id *id) { static int ds_version_printed; struct ldc_channel_config ds_cfg = { diff --git a/arch/sparc/kernel/ebus.c b/arch/sparc/kernel/ebus.c index e306fb08ee5..acf8314cec4 100644 --- a/arch/sparc/kernel/ebus.c +++ b/arch/sparc/kernel/ebus.c @@ -7,7 +7,6 @@ #include <linux/export.h> #include <linux/kernel.h> #include <linux/types.h> -#include <linux/init.h> #include <linux/interrupt.h> #include <linux/delay.h> diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S index dcaa1cf0de4..33c02b15f47 100644 --- a/arch/sparc/kernel/entry.S +++ b/arch/sparc/kernel/entry.S @@ -806,23 +806,10 @@ sys_nis_syscall: call c_sys_nis_syscall mov %l5, %o7 - .align 4 - .globl sys_execve -sys_execve: - mov %o7, %l5 - add %sp, STACKFRAME_SZ, %o0 ! pt_regs *regs arg - call sparc_execve - mov %l5, %o7 - - .globl sunos_execv sunos_execv: - st %g0, [%sp + STACKFRAME_SZ + PT_I2] - - call sparc_execve - add %sp, STACKFRAME_SZ, %o0 - - b ret_sys_call - ld [%sp + STACKFRAME_SZ + PT_I0], %o0 + .globl sunos_execv + b sys_execve + clr %i2 .align 4 .globl sys_sparc_pipe @@ -833,14 +820,6 @@ sys_sparc_pipe: mov %l5, %o7 .align 4 - .globl sys_sigaltstack -sys_sigaltstack: - mov %o7, %l5 - mov %fp, %o2 - call do_sigaltstack - mov %l5, %o7 - - .align 4 .globl sys_sigstack sys_sigstack: mov %o7, %l5 @@ -860,7 +839,7 @@ sys_sigreturn: nop call syscall_trace - nop + mov 1, %o1 1: /* We don't want to muck with user registers like a @@ -959,17 +938,9 @@ flush_patch_four: .align 4 linux_sparc_ni_syscall: sethi %hi(sys_ni_syscall), %l7 - b syscall_is_too_hard + b do_syscall or %l7, %lo(sys_ni_syscall), %l7 -linux_fast_syscall: - andn %l7, 3, %l7 - mov %i0, %o0 - mov %i1, %o1 - mov %i2, %o2 - jmpl %l7 + %g0, %g0 - mov %i3, %o3 - linux_syscall_trace: add %sp, STACKFRAME_SZ, %o0 call syscall_trace @@ -991,6 +962,23 @@ ret_from_fork: b ret_sys_call ld [%sp + STACKFRAME_SZ + PT_I0], %o0 + .globl ret_from_kernel_thread +ret_from_kernel_thread: + call schedule_tail + ld [%g3 + TI_TASK], %o0 + ld [%sp + STACKFRAME_SZ + PT_G1], %l0 + call %l0 + ld [%sp + STACKFRAME_SZ + PT_G2], %o0 + rd %psr, %l1 + ld [%sp + STACKFRAME_SZ + PT_PSR], %l0 + andn %l0, PSR_CWP, %l0 + nop + and %l1, PSR_CWP, %l1 + or %l0, %l1, %l0 + st %l0, [%sp + STACKFRAME_SZ + PT_PSR] + b ret_sys_call + mov 0, %o0 + /* Linux native system calls enter here... */ .align 4 .globl linux_sparc_syscall @@ -1002,11 +990,8 @@ linux_sparc_syscall: bgeu linux_sparc_ni_syscall sll %g1, 2, %l4 ld [%l7 + %l4], %l7 - andcc %l7, 1, %g0 - bne linux_fast_syscall - /* Just do first insn from SAVE_ALL in the delay slot */ -syscall_is_too_hard: +do_syscall: SAVE_ALL_HEAD rd %wim, %l3 diff --git a/arch/sparc/kernel/entry.h b/arch/sparc/kernel/entry.h index 0c218e4c088..ebaba6167dd 100644 --- a/arch/sparc/kernel/entry.h +++ b/arch/sparc/kernel/entry.h @@ -6,40 +6,39 @@ #include <linux/init.h> /* irq */ -extern void handler_irq(int irq, struct pt_regs *regs); +void handler_irq(int irq, struct pt_regs *regs); #ifdef CONFIG_SPARC32 /* traps */ -extern void do_hw_interrupt(struct pt_regs *regs, unsigned long type); -extern void do_illegal_instruction(struct pt_regs *regs, unsigned long pc, - unsigned long npc, unsigned long psr); - -extern void do_priv_instruction(struct pt_regs *regs, unsigned long pc, - unsigned long npc, unsigned long psr); -extern void do_memaccess_unaligned(struct pt_regs *regs, unsigned long pc, - unsigned long npc, - unsigned long psr); -extern void do_fpd_trap(struct pt_regs *regs, unsigned long pc, +void do_hw_interrupt(struct pt_regs *regs, unsigned long type); +void do_illegal_instruction(struct pt_regs *regs, unsigned long pc, + unsigned long npc, unsigned long psr); + +void do_priv_instruction(struct pt_regs *regs, unsigned long pc, + unsigned long npc, unsigned long psr); +void do_memaccess_unaligned(struct pt_regs *regs, unsigned long pc, + unsigned long npc, unsigned long psr); +void do_fpd_trap(struct pt_regs *regs, unsigned long pc, + unsigned long npc, unsigned long psr); +void do_fpe_trap(struct pt_regs *regs, unsigned long pc, + unsigned long npc, unsigned long psr); +void handle_tag_overflow(struct pt_regs *regs, unsigned long pc, + unsigned long npc, unsigned long psr); +void handle_watchpoint(struct pt_regs *regs, unsigned long pc, + unsigned long npc, unsigned long psr); +void handle_reg_access(struct pt_regs *regs, unsigned long pc, + unsigned long npc, unsigned long psr); +void handle_cp_disabled(struct pt_regs *regs, unsigned long pc, unsigned long npc, unsigned long psr); -extern void do_fpe_trap(struct pt_regs *regs, unsigned long pc, - unsigned long npc, unsigned long psr); -extern void handle_tag_overflow(struct pt_regs *regs, unsigned long pc, - unsigned long npc, unsigned long psr); -extern void handle_watchpoint(struct pt_regs *regs, unsigned long pc, - unsigned long npc, unsigned long psr); -extern void handle_reg_access(struct pt_regs *regs, unsigned long pc, - unsigned long npc, unsigned long psr); -extern void handle_cp_disabled(struct pt_regs *regs, unsigned long pc, - unsigned long npc, unsigned long psr); -extern void handle_cp_exception(struct pt_regs *regs, unsigned long pc, - unsigned long npc, unsigned long psr); +void handle_cp_exception(struct pt_regs *regs, unsigned long pc, + unsigned long npc, unsigned long psr); /* entry.S */ -extern void fpsave(unsigned long *fpregs, unsigned long *fsr, - void *fpqueue, unsigned long *fpqdepth); -extern void fpload(unsigned long *fpregs, unsigned long *fsr); +void fpsave(unsigned long *fpregs, unsigned long *fsr, + void *fpqueue, unsigned long *fpqdepth); +void fpload(unsigned long *fpregs, unsigned long *fsr); #else /* CONFIG_SPARC32 */ @@ -59,124 +58,130 @@ struct popc_6insn_patch_entry { extern struct popc_6insn_patch_entry __popc_6insn_patch, __popc_6insn_patch_end; -extern void __init per_cpu_patch(void); -extern void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *, - struct sun4v_1insn_patch_entry *); -extern void sun4v_patch_2insn_range(struct sun4v_2insn_patch_entry *, - struct sun4v_2insn_patch_entry *); -extern void __init sun4v_patch(void); -extern void __init boot_cpu_id_too_large(int cpu); +struct pause_patch_entry { + unsigned int addr; + unsigned int insns[3]; +}; +extern struct pause_patch_entry __pause_3insn_patch, + __pause_3insn_patch_end; + +void __init per_cpu_patch(void); +void sun4v_patch_1insn_range(struct sun4v_1insn_patch_entry *, + struct sun4v_1insn_patch_entry *); +void sun4v_patch_2insn_range(struct sun4v_2insn_patch_entry *, + struct sun4v_2insn_patch_entry *); +void __init sun4v_patch(void); +void __init boot_cpu_id_too_large(int cpu); extern unsigned int dcache_parity_tl1_occurred; extern unsigned int icache_parity_tl1_occurred; -extern asmlinkage void sparc_breakpoint(struct pt_regs *regs); -extern void timer_interrupt(int irq, struct pt_regs *regs); - -extern void do_notify_resume(struct pt_regs *regs, - unsigned long orig_i0, - unsigned long thread_info_flags); - -extern asmlinkage int syscall_trace_enter(struct pt_regs *regs); -extern asmlinkage void syscall_trace_leave(struct pt_regs *regs); - -extern void bad_trap_tl1(struct pt_regs *regs, long lvl); - -extern void do_fpe_common(struct pt_regs *regs); -extern void do_fpieee(struct pt_regs *regs); -extern void do_fpother(struct pt_regs *regs); -extern void do_tof(struct pt_regs *regs); -extern void do_div0(struct pt_regs *regs); -extern void do_illegal_instruction(struct pt_regs *regs); -extern void mem_address_unaligned(struct pt_regs *regs, - unsigned long sfar, - unsigned long sfsr); -extern void sun4v_do_mna(struct pt_regs *regs, - unsigned long addr, - unsigned long type_ctx); -extern void do_privop(struct pt_regs *regs); -extern void do_privact(struct pt_regs *regs); -extern void do_cee(struct pt_regs *regs); -extern void do_cee_tl1(struct pt_regs *regs); -extern void do_dae_tl1(struct pt_regs *regs); -extern void do_iae_tl1(struct pt_regs *regs); -extern void do_div0_tl1(struct pt_regs *regs); -extern void do_fpdis_tl1(struct pt_regs *regs); -extern void do_fpieee_tl1(struct pt_regs *regs); -extern void do_fpother_tl1(struct pt_regs *regs); -extern void do_ill_tl1(struct pt_regs *regs); -extern void do_irq_tl1(struct pt_regs *regs); -extern void do_lddfmna_tl1(struct pt_regs *regs); -extern void do_stdfmna_tl1(struct pt_regs *regs); -extern void do_paw(struct pt_regs *regs); -extern void do_paw_tl1(struct pt_regs *regs); -extern void do_vaw(struct pt_regs *regs); -extern void do_vaw_tl1(struct pt_regs *regs); -extern void do_tof_tl1(struct pt_regs *regs); -extern void do_getpsr(struct pt_regs *regs); - -extern void spitfire_insn_access_exception(struct pt_regs *regs, - unsigned long sfsr, - unsigned long sfar); -extern void spitfire_insn_access_exception_tl1(struct pt_regs *regs, - unsigned long sfsr, - unsigned long sfar); -extern void spitfire_data_access_exception(struct pt_regs *regs, - unsigned long sfsr, - unsigned long sfar); -extern void spitfire_data_access_exception_tl1(struct pt_regs *regs, - unsigned long sfsr, - unsigned long sfar); -extern void spitfire_access_error(struct pt_regs *regs, - unsigned long status_encoded, - unsigned long afar); - -extern void cheetah_fecc_handler(struct pt_regs *regs, - unsigned long afsr, - unsigned long afar); -extern void cheetah_cee_handler(struct pt_regs *regs, - unsigned long afsr, - unsigned long afar); -extern void cheetah_deferred_handler(struct pt_regs *regs, - unsigned long afsr, - unsigned long afar); -extern void cheetah_plus_parity_error(int type, struct pt_regs *regs); - -extern void sun4v_insn_access_exception(struct pt_regs *regs, - unsigned long addr, - unsigned long type_ctx); -extern void sun4v_insn_access_exception_tl1(struct pt_regs *regs, - unsigned long addr, - unsigned long type_ctx); -extern void sun4v_data_access_exception(struct pt_regs *regs, - unsigned long addr, - unsigned long type_ctx); -extern void sun4v_data_access_exception_tl1(struct pt_regs *regs, - unsigned long addr, - unsigned long type_ctx); -extern void sun4v_resum_error(struct pt_regs *regs, - unsigned long offset); -extern void sun4v_resum_overflow(struct pt_regs *regs); -extern void sun4v_nonresum_error(struct pt_regs *regs, - unsigned long offset); -extern void sun4v_nonresum_overflow(struct pt_regs *regs); +asmlinkage void sparc_breakpoint(struct pt_regs *regs); +void timer_interrupt(int irq, struct pt_regs *regs); + +void do_notify_resume(struct pt_regs *regs, + unsigned long orig_i0, + unsigned long thread_info_flags); + +asmlinkage int syscall_trace_enter(struct pt_regs *regs); +asmlinkage void syscall_trace_leave(struct pt_regs *regs); + +void bad_trap_tl1(struct pt_regs *regs, long lvl); + +void do_fpieee(struct pt_regs *regs); +void do_fpother(struct pt_regs *regs); +void do_tof(struct pt_regs *regs); +void do_div0(struct pt_regs *regs); +void do_illegal_instruction(struct pt_regs *regs); +void mem_address_unaligned(struct pt_regs *regs, + unsigned long sfar, + unsigned long sfsr); +void sun4v_do_mna(struct pt_regs *regs, + unsigned long addr, + unsigned long type_ctx); +void do_privop(struct pt_regs *regs); +void do_privact(struct pt_regs *regs); +void do_cee(struct pt_regs *regs); +void do_cee_tl1(struct pt_regs *regs); +void do_dae_tl1(struct pt_regs *regs); +void do_iae_tl1(struct pt_regs *regs); +void do_div0_tl1(struct pt_regs *regs); +void do_fpdis_tl1(struct pt_regs *regs); +void do_fpieee_tl1(struct pt_regs *regs); +void do_fpother_tl1(struct pt_regs *regs); +void do_ill_tl1(struct pt_regs *regs); +void do_irq_tl1(struct pt_regs *regs); +void do_lddfmna_tl1(struct pt_regs *regs); +void do_stdfmna_tl1(struct pt_regs *regs); +void do_paw(struct pt_regs *regs); +void do_paw_tl1(struct pt_regs *regs); +void do_vaw(struct pt_regs *regs); +void do_vaw_tl1(struct pt_regs *regs); +void do_tof_tl1(struct pt_regs *regs); +void do_getpsr(struct pt_regs *regs); + +void spitfire_insn_access_exception(struct pt_regs *regs, + unsigned long sfsr, + unsigned long sfar); +void spitfire_insn_access_exception_tl1(struct pt_regs *regs, + unsigned long sfsr, + unsigned long sfar); +void spitfire_data_access_exception(struct pt_regs *regs, + unsigned long sfsr, + unsigned long sfar); +void spitfire_data_access_exception_tl1(struct pt_regs *regs, + unsigned long sfsr, + unsigned long sfar); +void spitfire_access_error(struct pt_regs *regs, + unsigned long status_encoded, + unsigned long afar); + +void cheetah_fecc_handler(struct pt_regs *regs, + unsigned long afsr, + unsigned long afar); +void cheetah_cee_handler(struct pt_regs *regs, + unsigned long afsr, + unsigned long afar); +void cheetah_deferred_handler(struct pt_regs *regs, + unsigned long afsr, + unsigned long afar); +void cheetah_plus_parity_error(int type, struct pt_regs *regs); + +void sun4v_insn_access_exception(struct pt_regs *regs, + unsigned long addr, + unsigned long type_ctx); +void sun4v_insn_access_exception_tl1(struct pt_regs *regs, + unsigned long addr, + unsigned long type_ctx); +void sun4v_data_access_exception(struct pt_regs *regs, + unsigned long addr, + unsigned long type_ctx); +void sun4v_data_access_exception_tl1(struct pt_regs *regs, + unsigned long addr, + unsigned long type_ctx); +void sun4v_resum_error(struct pt_regs *regs, + unsigned long offset); +void sun4v_resum_overflow(struct pt_regs *regs); +void sun4v_nonresum_error(struct pt_regs *regs, + unsigned long offset); +void sun4v_nonresum_overflow(struct pt_regs *regs); extern unsigned long sun4v_err_itlb_vaddr; extern unsigned long sun4v_err_itlb_ctx; extern unsigned long sun4v_err_itlb_pte; extern unsigned long sun4v_err_itlb_error; -extern void sun4v_itlb_error_report(struct pt_regs *regs, int tl); +void sun4v_itlb_error_report(struct pt_regs *regs, int tl); extern unsigned long sun4v_err_dtlb_vaddr; extern unsigned long sun4v_err_dtlb_ctx; extern unsigned long sun4v_err_dtlb_pte; extern unsigned long sun4v_err_dtlb_error; -extern void sun4v_dtlb_error_report(struct pt_regs *regs, int tl); -extern void hypervisor_tlbop_error(unsigned long err, - unsigned long op); -extern void hypervisor_tlbop_error_xcall(unsigned long err, - unsigned long op); +void sun4v_dtlb_error_report(struct pt_regs *regs, int tl); +void hypervisor_tlbop_error(unsigned long err, + unsigned long op); +void hypervisor_tlbop_error_xcall(unsigned long err, + unsigned long op); /* WARNING: The error trap handlers in assembly know the precise * layout of the following structure. @@ -242,8 +247,8 @@ struct ino_bucket { extern struct ino_bucket *ivector_table; extern unsigned long ivector_table_pa; -extern void init_irqwork_curcpu(void); -extern void __cpuinit sun4v_register_mondo_queues(int this_cpu); +void init_irqwork_curcpu(void); +void sun4v_register_mondo_queues(int this_cpu); #endif /* CONFIG_SPARC32 */ #endif /* _ENTRY_H */ diff --git a/arch/sparc/kernel/etrap_64.S b/arch/sparc/kernel/etrap_64.S index 786b185e6e3..1276ca2567b 100644 --- a/arch/sparc/kernel/etrap_64.S +++ b/arch/sparc/kernel/etrap_64.S @@ -92,8 +92,10 @@ etrap_save: save %g2, -STACK_BIAS, %sp rdpr %wstate, %g2 wrpr %g0, 0, %canrestore sll %g2, 3, %g2 + + /* Set TI_SYS_FPDEPTH to 1 and clear TI_SYS_NOERROR. */ mov 1, %l5 - stb %l5, [%l6 + TI_FPDEPTH] + sth %l5, [%l6 + TI_SYS_NOERROR] wrpr %g3, 0, %otherwin wrpr %g2, 0, %wstate @@ -152,7 +154,9 @@ etrap_save: save %g2, -STACK_BIAS, %sp add %l6, TI_FPSAVED + 1, %l4 srl %l5, 1, %l3 add %l5, 2, %l5 - stb %l5, [%l6 + TI_FPDEPTH] + + /* Set TI_SYS_FPDEPTH to %l5 and clear TI_SYS_NOERROR. */ + sth %l5, [%l6 + TI_SYS_NOERROR] ba,pt %xcc, 2b stb %g0, [%l4 + %l3] nop diff --git a/arch/sparc/kernel/ftrace.c b/arch/sparc/kernel/ftrace.c index 03ab022e51c..0a2d2ddff54 100644 --- a/arch/sparc/kernel/ftrace.c +++ b/arch/sparc/kernel/ftrace.c @@ -82,12 +82,8 @@ int ftrace_update_ftrace_func(ftrace_func_t func) return ftrace_modify_code(ip, old, new); } -int __init ftrace_dyn_arch_init(void *data) +int __init ftrace_dyn_arch_init(void) { - unsigned long *p = data; - - *p = 0; - return 0; } #endif diff --git a/arch/sparc/kernel/head_64.S b/arch/sparc/kernel/head_64.S index 2feb15c35d9..452f04fe8da 100644 --- a/arch/sparc/kernel/head_64.S +++ b/arch/sparc/kernel/head_64.S @@ -134,6 +134,8 @@ prom_niagara_prefix: .asciz "SUNW,UltraSPARC-T" prom_sparc_prefix: .asciz "SPARC-" +prom_sparc64x_prefix: + .asciz "SPARC64-X" .align 4 prom_root_compatible: .skip 64 @@ -280,8 +282,8 @@ sun4v_chip_type: stx %l2, [%l4 + 0x0] ldx [%sp + 2047 + 128 + 0x50], %l3 ! physaddr low /* 4MB align */ - srlx %l3, 22, %l3 - sllx %l3, 22, %l3 + srlx %l3, ILOG2_4MB, %l3 + sllx %l3, ILOG2_4MB, %l3 stx %l3, [%l4 + 0x8] /* Leave service as-is, "call-method" */ @@ -412,7 +414,7 @@ sun4v_chip_type: cmp %g2, 'T' be,pt %xcc, 70f cmp %g2, 'M' - bne,pn %xcc, 4f + bne,pn %xcc, 49f nop 70: ldub [%g1 + 7], %g2 @@ -425,7 +427,7 @@ sun4v_chip_type: cmp %g2, '5' be,pt %xcc, 5f mov SUN4V_CHIP_NIAGARA5, %g4 - ba,pt %xcc, 4f + ba,pt %xcc, 49f nop 91: sethi %hi(prom_cpu_compatible), %g1 @@ -439,6 +441,25 @@ sun4v_chip_type: mov SUN4V_CHIP_NIAGARA2, %g4 4: + /* Athena */ + sethi %hi(prom_cpu_compatible), %g1 + or %g1, %lo(prom_cpu_compatible), %g1 + sethi %hi(prom_sparc64x_prefix), %g7 + or %g7, %lo(prom_sparc64x_prefix), %g7 + mov 9, %g3 +41: ldub [%g7], %g2 + ldub [%g1], %g4 + cmp %g2, %g4 + bne,pn %icc, 49f + add %g7, 1, %g7 + subcc %g3, 1, %g3 + bne,pt %xcc, 41b + add %g1, 1, %g1 + mov SUN4V_CHIP_SPARC64X, %g4 + ba,pt %xcc, 5f + nop + +49: mov SUN4V_CHIP_UNKNOWN, %g4 5: sethi %hi(sun4v_chip_type), %g2 or %g2, %lo(sun4v_chip_type), %g2 diff --git a/arch/sparc/kernel/hvtramp.S b/arch/sparc/kernel/hvtramp.S index 9365432904d..b7ddcdd1dea 100644 --- a/arch/sparc/kernel/hvtramp.S +++ b/arch/sparc/kernel/hvtramp.S @@ -3,7 +3,6 @@ * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net> */ -#include <linux/init.h> #include <asm/thread_info.h> #include <asm/hypervisor.h> @@ -16,7 +15,6 @@ #include <asm/asi.h> #include <asm/pil.h> - __CPUINIT .align 8 .globl hv_cpu_startup, hv_cpu_startup_end @@ -128,8 +126,7 @@ hv_cpu_startup: call smp_callin nop - call cpu_idle - mov 0, %o0 + call cpu_panic nop diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c index 070ed141aac..bfa4d0c2df4 100644 --- a/arch/sparc/kernel/iommu.c +++ b/arch/sparc/kernel/iommu.c @@ -21,6 +21,7 @@ #include <asm/iommu.h> #include "iommu_common.h" +#include "kernel.h" #define STC_CTXMATCH_ADDR(STC, CTX) \ ((STC)->strbuf_ctxmatch_base + ((CTX) << 3)) @@ -840,8 +841,6 @@ static struct dma_map_ops sun4u_dma_ops = { struct dma_map_ops *dma_ops = &sun4u_dma_ops; EXPORT_SYMBOL(dma_ops); -extern int pci64_dma_supported(struct pci_dev *pdev, u64 device_mask); - int dma_supported(struct device *dev, u64 device_mask) { struct iommu *iommu = dev->archdata.iommu; @@ -854,7 +853,7 @@ int dma_supported(struct device *dev, u64 device_mask) return 1; #ifdef CONFIG_PCI - if (dev->bus == &pci_bus_type) + if (dev_is_pci(dev)) return pci64_dma_supported(to_pci_dev(dev), device_mask); #endif diff --git a/arch/sparc/kernel/iommu_common.h b/arch/sparc/kernel/iommu_common.h index 591f5879039..1ec0de4156e 100644 --- a/arch/sparc/kernel/iommu_common.h +++ b/arch/sparc/kernel/iommu_common.h @@ -48,12 +48,12 @@ static inline int is_span_boundary(unsigned long entry, return iommu_is_span_boundary(entry, nr, shift, boundary_size); } -extern unsigned long iommu_range_alloc(struct device *dev, - struct iommu *iommu, - unsigned long npages, - unsigned long *handle); -extern void iommu_range_free(struct iommu *iommu, - dma_addr_t dma_addr, - unsigned long npages); +unsigned long iommu_range_alloc(struct device *dev, + struct iommu *iommu, + unsigned long npages, + unsigned long *handle); +void iommu_range_free(struct iommu *iommu, + dma_addr_t dma_addr, + unsigned long npages); #endif /* _IOMMU_COMMON_H */ diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index 0f094db918c..7f08ec8a7c6 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -186,7 +186,7 @@ static void __iomem *_sparc_alloc_io(unsigned int busno, unsigned long phys, if (name == NULL) name = "???"; - if ((xres = xres_alloc()) != 0) { + if ((xres = xres_alloc()) != NULL) { tack = xres->xname; res = &xres->xres; } else { @@ -400,7 +400,7 @@ static void sbus_sync_sg_for_device(struct device *dev, struct scatterlist *sg, BUG(); } -struct dma_map_ops sbus_dma_ops = { +static struct dma_map_ops sbus_dma_ops = { .alloc = sbus_alloc_coherent, .free = sbus_free_coherent, .map_page = sbus_map_page, @@ -666,10 +666,9 @@ EXPORT_SYMBOL(dma_ops); */ int dma_supported(struct device *dev, u64 mask) { -#ifdef CONFIG_PCI - if (dev->bus == &pci_bus_type) + if (dev_is_pci(dev)) return 1; -#endif + return 0; } EXPORT_SYMBOL(dma_supported); @@ -682,7 +681,7 @@ static int sparc_io_proc_show(struct seq_file *m, void *v) const char *nm; for (r = root->child; r != NULL; r = r->sibling) { - if ((nm = r->name) == 0) nm = "???"; + if ((nm = r->name) == NULL) nm = "???"; seq_printf(m, "%016llx-%016llx: %s\n", (unsigned long long)r->start, (unsigned long long)r->end, nm); @@ -693,7 +692,7 @@ static int sparc_io_proc_show(struct seq_file *m, void *v) static int sparc_io_proc_open(struct inode *inode, struct file *file) { - return single_open(file, sparc_io_proc_show, PDE(inode)->data); + return single_open(file, sparc_io_proc_show, PDE_DATA(inode)); } static const struct file_operations sparc_io_proc_fops = { diff --git a/arch/sparc/kernel/irq.h b/arch/sparc/kernel/irq.h index b66b6aad1d6..70a0b8ddd0b 100644 --- a/arch/sparc/kernel/irq.h +++ b/arch/sparc/kernel/irq.h @@ -82,11 +82,20 @@ void handler_irq(unsigned int pil, struct pt_regs *regs); unsigned long leon_get_irqmask(unsigned int irq); +/* irq_32.c */ +void sparc_floppy_irq(int irq, void *dev_id, struct pt_regs *regs); + +/* sun4m_irq.c */ +void sun4m_nmi(struct pt_regs *regs); + +/* sun4d_irq.c */ +void sun4d_handler_irq(unsigned int pil, struct pt_regs *regs); + #ifdef CONFIG_SMP /* All SUN4D IPIs are sent on this IRQ, may be shared with hard IRQs */ #define SUN4D_IPI_IRQ 13 -extern void sun4d_ipi_interrupt(void); +void sun4d_ipi_interrupt(void); #endif diff --git a/arch/sparc/kernel/irq_32.c b/arch/sparc/kernel/irq_32.c index c145f6fd123..a979e99f875 100644 --- a/arch/sparc/kernel/irq_32.c +++ b/arch/sparc/kernel/irq_32.c @@ -17,6 +17,7 @@ #include <asm/cacheflush.h> #include <asm/cpudata.h> +#include <asm/setup.h> #include <asm/pcic.h> #include <asm/leon.h> diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c index 9bcbbe2c4e7..666193f4e8b 100644 --- a/arch/sparc/kernel/irq_64.c +++ b/arch/sparc/kernel/irq_64.c @@ -698,30 +698,19 @@ void __irq_entry handler_irq(int pil, struct pt_regs *regs) set_irq_regs(old_regs); } -void do_softirq(void) +void do_softirq_own_stack(void) { - unsigned long flags; - - if (in_interrupt()) - return; - - local_irq_save(flags); + void *orig_sp, *sp = softirq_stack[smp_processor_id()]; - if (local_softirq_pending()) { - void *orig_sp, *sp = softirq_stack[smp_processor_id()]; - - sp += THREAD_SIZE - 192 - STACK_BIAS; - - __asm__ __volatile__("mov %%sp, %0\n\t" - "mov %1, %%sp" - : "=&r" (orig_sp) - : "r" (sp)); - __do_softirq(); - __asm__ __volatile__("mov %0, %%sp" - : : "r" (orig_sp)); - } + sp += THREAD_SIZE - 192 - STACK_BIAS; - local_irq_restore(flags); + __asm__ __volatile__("mov %%sp, %0\n\t" + "mov %1, %%sp" + : "=&r" (orig_sp) + : "r" (sp)); + __do_softirq(); + __asm__ __volatile__("mov %0, %%sp" + : : "r" (orig_sp)); } #ifdef CONFIG_HOTPLUG_CPU @@ -835,7 +824,8 @@ void notrace init_irqwork_curcpu(void) * Therefore you cannot make any OBP calls, not even prom_printf, * from these two routines. */ -static void __cpuinit notrace register_one_mondo(unsigned long paddr, unsigned long type, unsigned long qmask) +static void notrace register_one_mondo(unsigned long paddr, unsigned long type, + unsigned long qmask) { unsigned long num_entries = (qmask + 1) / 64; unsigned long status; @@ -848,7 +838,7 @@ static void __cpuinit notrace register_one_mondo(unsigned long paddr, unsigned l } } -void __cpuinit notrace sun4v_register_mondo_queues(int this_cpu) +void notrace sun4v_register_mondo_queues(int this_cpu) { struct trap_per_cpu *tb = &trap_block[this_cpu]; diff --git a/arch/sparc/kernel/kernel.h b/arch/sparc/kernel/kernel.h index 291bb5de9ce..e7f652be9e6 100644 --- a/arch/sparc/kernel/kernel.h +++ b/arch/sparc/kernel/kernel.h @@ -2,6 +2,7 @@ #define __SPARC_KERNEL_H #include <linux/interrupt.h> +#include <linux/ftrace.h> #include <asm/traps.h> #include <asm/head.h> @@ -15,50 +16,111 @@ extern int ncpus_probed; #ifdef CONFIG_SPARC64 /* setup_64.c */ struct seq_file; -extern void cpucap_info(struct seq_file *); +void cpucap_info(struct seq_file *); -static inline unsigned long kimage_addr_to_ra(const char *p) +static inline unsigned long kimage_addr_to_ra(const void *p) { unsigned long val = (unsigned long) p; return kern_base + (val - KERNBASE); } + +/* sys_sparc_64.c */ +asmlinkage long sys_kern_features(void); + +/* unaligned_64.c */ +asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn); +int handle_popc(u32 insn, struct pt_regs *regs); +void handle_lddfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr); +void handle_stdfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr); + +/* smp_64.c */ +void __irq_entry smp_call_function_client(int irq, struct pt_regs *regs); +void __irq_entry smp_call_function_single_client(int irq, struct pt_regs *regs); +void __irq_entry smp_new_mmu_context_version_client(int irq, struct pt_regs *regs); +void __irq_entry smp_penguin_jailcell(int irq, struct pt_regs *regs); +void __irq_entry smp_receive_signal_client(int irq, struct pt_regs *regs); + +/* kgdb_64.c */ +void __irq_entry smp_kgdb_capture_client(int irq, struct pt_regs *regs); + +/* pci.c */ +int pci64_dma_supported(struct pci_dev *pdev, u64 device_mask); + +/* signal32.c */ +void do_sigreturn32(struct pt_regs *regs); +asmlinkage void do_rt_sigreturn32(struct pt_regs *regs); +void do_signal32(struct pt_regs * regs); +asmlinkage int do_sys32_sigstack(u32 u_ssptr, u32 u_ossptr, unsigned long sp); + +/* compat_audit.c */ +extern unsigned sparc32_dir_class[]; +extern unsigned sparc32_chattr_class[]; +extern unsigned sparc32_write_class[]; +extern unsigned sparc32_read_class[]; +extern unsigned sparc32_signal_class[]; +int sparc32_classify_syscall(unsigned syscall); #endif #ifdef CONFIG_SPARC32 /* setup_32.c */ +struct linux_romvec; void sparc32_start_kernel(struct linux_romvec *rp); /* cpu.c */ -extern void cpu_probe(void); +void cpu_probe(void); /* traps_32.c */ -extern void handle_hw_divzero(struct pt_regs *regs, unsigned long pc, - unsigned long npc, unsigned long psr); +void handle_hw_divzero(struct pt_regs *regs, unsigned long pc, + unsigned long npc, unsigned long psr); /* irq_32.c */ extern struct irqaction static_irqaction[]; extern int static_irq_count; extern spinlock_t irq_action_lock; -extern void unexpected_irq(int irq, void *dev_id, struct pt_regs * regs); -extern void init_IRQ(void); +void unexpected_irq(int irq, void *dev_id, struct pt_regs * regs); +void init_IRQ(void); /* sun4m_irq.c */ -extern void sun4m_init_IRQ(void); -extern void sun4m_unmask_profile_irq(void); -extern void sun4m_clear_profile_irq(int cpu); +void sun4m_init_IRQ(void); +void sun4m_unmask_profile_irq(void); +void sun4m_clear_profile_irq(int cpu); + +/* sun4m_smp.c */ +void sun4m_cpu_pre_starting(void *arg); +void sun4m_cpu_pre_online(void *arg); +void __init smp4m_boot_cpus(void); +int smp4m_boot_one_cpu(int i, struct task_struct *idle); +void __init smp4m_smp_done(void); +void smp4m_cross_call_irq(void); +void smp4m_percpu_timer_interrupt(struct pt_regs *regs); /* sun4d_irq.c */ extern spinlock_t sun4d_imsk_lock; -extern void sun4d_init_IRQ(void); -extern int sun4d_request_irq(unsigned int irq, - irq_handler_t handler, - unsigned long irqflags, - const char *devname, void *dev_id); -extern int show_sun4d_interrupts(struct seq_file *, void *); -extern void sun4d_distribute_irqs(void); -extern void sun4d_free_irq(unsigned int irq, void *dev_id); +void sun4d_init_IRQ(void); +int sun4d_request_irq(unsigned int irq, + irq_handler_t handler, + unsigned long irqflags, + const char *devname, void *dev_id); +int show_sun4d_interrupts(struct seq_file *, void *); +void sun4d_distribute_irqs(void); +void sun4d_free_irq(unsigned int irq, void *dev_id); + +/* sun4d_smp.c */ +void sun4d_cpu_pre_starting(void *arg); +void sun4d_cpu_pre_online(void *arg); +void __init smp4d_boot_cpus(void); +int smp4d_boot_one_cpu(int i, struct task_struct *idle); +void __init smp4d_smp_done(void); +void smp4d_cross_call_irq(void); +void smp4d_percpu_timer_interrupt(struct pt_regs *regs); + +/* leon_smp.c */ +void leon_cpu_pre_starting(void *arg); +void leon_cpu_pre_online(void *arg); +void leonsmp_ipi_interrupt(void); +void leon_cross_call_irq(void); /* head_32.S */ extern unsigned int t_nmi[]; @@ -77,12 +139,48 @@ extern unsigned int real_irq_entry[]; extern unsigned int smp4d_ticker[]; extern unsigned int patchme_maybe_smp_msg[]; -extern void floppy_hardint(void); +void floppy_hardint(void); /* trampoline_32.S */ extern unsigned long sun4m_cpu_startup; extern unsigned long sun4d_cpu_startup; +/* process_32.c */ +asmlinkage int sparc_do_fork(unsigned long clone_flags, + unsigned long stack_start, + struct pt_regs *regs, + unsigned long stack_size); + +/* signal_32.c */ +asmlinkage void do_sigreturn(struct pt_regs *regs); +asmlinkage void do_rt_sigreturn(struct pt_regs *regs); +void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0, + unsigned long thread_info_flags); +asmlinkage int do_sys_sigstack(struct sigstack __user *ssptr, + struct sigstack __user *ossptr, + unsigned long sp); + +/* ptrace_32.c */ +asmlinkage int syscall_trace(struct pt_regs *regs, int syscall_exit_p); + +/* unaligned_32.c */ +asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn); +asmlinkage void user_unaligned_trap(struct pt_regs *regs, unsigned int insn); + +/* windows.c */ +void try_to_clear_window_buffer(struct pt_regs *regs, int who); + +/* auxio_32.c */ +void __init auxio_probe(void); +void __init auxio_power_probe(void); + +/* pcic.c */ +extern void __iomem *pcic_regs; +void pcic_nmi(unsigned int pend, struct pt_regs *regs); + +/* time_32.c */ +void __init time_init(void); + #else /* CONFIG_SPARC32 */ #endif /* CONFIG_SPARC32 */ #endif /* !(__SPARC_KERNEL_H) */ diff --git a/arch/sparc/kernel/kgdb_32.c b/arch/sparc/kernel/kgdb_32.c index 2e424a576a3..dcf210811af 100644 --- a/arch/sparc/kernel/kgdb_32.c +++ b/arch/sparc/kernel/kgdb_32.c @@ -5,6 +5,7 @@ #include <linux/kgdb.h> #include <linux/kdebug.h> +#include <linux/sched.h> #include <asm/kdebug.h> #include <asm/ptrace.h> diff --git a/arch/sparc/kernel/kgdb_64.c b/arch/sparc/kernel/kgdb_64.c index c8759550799..cbf21d0870e 100644 --- a/arch/sparc/kernel/kgdb_64.c +++ b/arch/sparc/kernel/kgdb_64.c @@ -6,12 +6,15 @@ #include <linux/kgdb.h> #include <linux/kdebug.h> #include <linux/ftrace.h> +#include <linux/context_tracking.h> #include <asm/cacheflush.h> #include <asm/kdebug.h> #include <asm/ptrace.h> #include <asm/irq.h> +#include "kernel.h" + void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs) { struct reg_window *win; @@ -42,7 +45,7 @@ void sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *p) { struct thread_info *t = task_thread_info(p); extern unsigned int switch_to_pc; - extern unsigned int ret_from_syscall; + extern unsigned int ret_from_fork; struct reg_window *win; unsigned long pc, cwp; int i; @@ -66,7 +69,7 @@ void sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *p) gdb_regs[i] = 0; if (t->new_child) - pc = (unsigned long) &ret_from_syscall; + pc = (unsigned long) &ret_from_fork; else pc = (unsigned long) &switch_to_pc; @@ -159,11 +162,12 @@ int kgdb_arch_handle_exception(int e_vector, int signo, int err_code, asmlinkage void kgdb_trap(unsigned long trap_level, struct pt_regs *regs) { + enum ctx_state prev_state = exception_enter(); unsigned long flags; if (user_mode(regs)) { bad_trap(regs, trap_level); - return; + goto out; } flushw_all(); @@ -171,6 +175,8 @@ asmlinkage void kgdb_trap(unsigned long trap_level, struct pt_regs *regs) local_irq_save(flags); kgdb_handle_exception(0x172, SIGTRAP, 0, regs); local_irq_restore(flags); +out: + exception_exit(prev_state); } int kgdb_arch_init(void) diff --git a/arch/sparc/kernel/kprobes.c b/arch/sparc/kernel/kprobes.c index a39d1ba5a11..98d71284341 100644 --- a/arch/sparc/kernel/kprobes.c +++ b/arch/sparc/kernel/kprobes.c @@ -8,6 +8,7 @@ #include <linux/module.h> #include <linux/kdebug.h> #include <linux/slab.h> +#include <linux/context_tracking.h> #include <asm/signal.h> #include <asm/cacheflush.h> #include <asm/uaccess.h> @@ -349,7 +350,7 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr) case KPROBE_HIT_SSDONE: /* * We increment the nmissed count for accounting, - * we can also use npre/npostfault count for accouting + * we can also use npre/npostfault count for accounting * these specific fault cases. */ kprobes_inc_nmissed_count(cur); @@ -418,12 +419,14 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self, asmlinkage void __kprobes kprobe_trap(unsigned long trap_level, struct pt_regs *regs) { + enum ctx_state prev_state = exception_enter(); + BUG_ON(trap_level != 0x170 && trap_level != 0x171); if (user_mode(regs)) { local_irq_enable(); bad_trap(regs, trap_level); - return; + goto out; } /* trap_level == 0x170 --> ta 0x70 @@ -433,6 +436,8 @@ asmlinkage void __kprobes kprobe_trap(unsigned long trap_level, (trap_level == 0x170) ? "debug" : "debug_2", regs, 0, trap_level, SIGTRAP) != NOTIFY_STOP) bad_trap(regs, trap_level); +out: + exception_exit(prev_state); } /* Jprobes support. */ @@ -507,11 +512,12 @@ void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri, /* * Called when the probe at kretprobe trampoline is hit */ -int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs) +static int __kprobes trampoline_probe_handler(struct kprobe *p, + struct pt_regs *regs) { struct kretprobe_instance *ri = NULL; struct hlist_head *head, empty_rp; - struct hlist_node *node, *tmp; + struct hlist_node *tmp; unsigned long flags, orig_ret_address = 0; unsigned long trampoline_address =(unsigned long)&kretprobe_trampoline; @@ -531,7 +537,7 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs) * real return address, and all the rest will point to * kretprobe_trampoline */ - hlist_for_each_entry_safe(ri, node, tmp, head, hlist) { + hlist_for_each_entry_safe(ri, tmp, head, hlist) { if (ri->task != current) /* another task is sharing our hash bucket */ continue; @@ -559,7 +565,7 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs) kretprobe_hash_unlock(current, &flags); preempt_enable_no_resched(); - hlist_for_each_entry_safe(ri, node, tmp, &empty_rp, hlist) { + hlist_for_each_entry_safe(ri, tmp, &empty_rp, hlist) { hlist_del(&ri->hlist); kfree(ri); } @@ -571,7 +577,7 @@ int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs) return 1; } -void kretprobe_trampoline_holder(void) +static void __used kretprobe_trampoline_holder(void) { asm volatile(".global kretprobe_trampoline\n" "kretprobe_trampoline:\n" diff --git a/arch/sparc/kernel/ktlb.S b/arch/sparc/kernel/ktlb.S index 0746e5e32b3..605d4920458 100644 --- a/arch/sparc/kernel/ktlb.S +++ b/arch/sparc/kernel/ktlb.S @@ -25,11 +25,10 @@ kvmap_itlb: */ kvmap_itlb_4v: -kvmap_itlb_nonlinear: /* Catch kernel NULL pointer calls. */ sethi %hi(PAGE_SIZE), %g5 cmp %g4, %g5 - bleu,pn %xcc, kvmap_dtlb_longpath + blu,pn %xcc, kvmap_itlb_longpath nop KERN_TSB_LOOKUP_TL1(%g4, %g6, %g5, %g1, %g2, %g3, kvmap_itlb_load) @@ -154,12 +153,19 @@ kvmap_dtlb_tsb4m_miss: /* Clear the PAGE_OFFSET top virtual bits, shift * down to get PFN, and make sure PFN is in range. */ - sllx %g4, 21, %g5 +661: sllx %g4, 0, %g5 + .section .page_offset_shift_patch, "ax" + .word 661b + .previous /* Check to see if we know about valid memory at the 4MB * chunk this physical address will reside within. */ - srlx %g5, 21 + 41, %g2 +661: srlx %g5, MAX_PHYS_ADDRESS_BITS, %g2 + .section .page_offset_shift_patch, "ax" + .word 661b + .previous + brnz,pn %g2, kvmap_dtlb_longpath nop @@ -177,7 +183,11 @@ valid_addr_bitmap_patch: or %g7, %lo(sparc64_valid_addr_bitmap), %g7 .previous - srlx %g5, 21 + 22, %g2 +661: srlx %g5, ILOG2_4MB, %g2 + .section .page_offset_shift_patch, "ax" + .word 661b + .previous + srlx %g2, 6, %g5 and %g2, 63, %g2 sllx %g5, 3, %g5 @@ -190,9 +200,18 @@ valid_addr_bitmap_patch: 2: sethi %hi(kpte_linear_bitmap), %g2 /* Get the 256MB physical address index. */ - sllx %g4, 21, %g5 +661: sllx %g4, 0, %g5 + .section .page_offset_shift_patch, "ax" + .word 661b + .previous + or %g2, %lo(kpte_linear_bitmap), %g2 - srlx %g5, 21 + 28, %g5 + +661: srlx %g5, ILOG2_256MB, %g5 + .section .page_offset_shift_patch, "ax" + .word 661b + .previous + and %g5, (32 - 1), %g7 /* Divide by 32 to get the offset into the bitmask. */ @@ -258,7 +277,7 @@ kvmap_dtlb_load: #ifdef CONFIG_SPARSEMEM_VMEMMAP kvmap_vmemmap: sub %g4, %g5, %g5 - srlx %g5, 22, %g5 + srlx %g5, ILOG2_4MB, %g5 sethi %hi(vmemmap_table), %g1 sllx %g5, 3, %g5 or %g1, %lo(vmemmap_table), %g1 diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c index 81d92fc9983..e01d75d4032 100644 --- a/arch/sparc/kernel/ldc.c +++ b/arch/sparc/kernel/ldc.c @@ -27,7 +27,7 @@ #define DRV_MODULE_VERSION "1.1" #define DRV_MODULE_RELDATE "July 22, 2008" -static char version[] __devinitdata = +static char version[] = DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n"; #define LDC_PACKET_SIZE 64 @@ -953,9 +953,8 @@ static HLIST_HEAD(ldc_channel_list); static int __ldc_channel_exists(unsigned long id) { struct ldc_channel *lp; - struct hlist_node *n; - hlist_for_each_entry(lp, n, &ldc_channel_list, list) { + hlist_for_each_entry(lp, &ldc_channel_list, list) { if (lp->id == id) return 1; } @@ -1250,12 +1249,12 @@ int ldc_bind(struct ldc_channel *lp, const char *name) snprintf(lp->rx_irq_name, LDC_IRQ_NAME_MAX, "%s RX", name); snprintf(lp->tx_irq_name, LDC_IRQ_NAME_MAX, "%s TX", name); - err = request_irq(lp->cfg.rx_irq, ldc_rx, IRQF_DISABLED, + err = request_irq(lp->cfg.rx_irq, ldc_rx, 0, lp->rx_irq_name, lp); if (err) return err; - err = request_irq(lp->cfg.tx_irq, ldc_tx, IRQF_DISABLED, + err = request_irq(lp->cfg.tx_irq, ldc_tx, 0, lp->tx_irq_name, lp); if (err) { free_irq(lp->cfg.rx_irq, lp); diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c index f8b6eee40bd..683c4af999d 100644 --- a/arch/sparc/kernel/leon_kernel.c +++ b/arch/sparc/kernel/leon_kernel.c @@ -32,13 +32,12 @@ struct leon3_gptimer_regs_map *leon3_gptimer_regs; /* timer controller base addr int leondebug_irq_disable; int leon_debug_irqout; -static int dummy_master_l10_counter; +static volatile u32 dummy_master_l10_counter; unsigned long amba_system_id; static DEFINE_SPINLOCK(leon_irq_lock); +static unsigned long leon3_gptimer_idx; /* Timer Index (0..6) within Timer Core */ unsigned long leon3_gptimer_irq; /* interrupt controller irq number */ -unsigned long leon3_gptimer_idx; /* Timer Index (0..6) within Timer Core */ -int leon3_ticker_irq; /* Timer ticker IRQ */ unsigned int sparc_leon_eirq; #define LEON_IMASK(cpu) (&leon3_irqctrl_regs->mask[cpu]) #define LEON_IACK (&leon3_irqctrl_regs->iclear) @@ -56,15 +55,17 @@ static inline unsigned int leon_eirq_get(int cpu) static void leon_handle_ext_irq(unsigned int irq, struct irq_desc *desc) { unsigned int eirq; + struct irq_bucket *p; int cpu = sparc_leon3_cpuid(); eirq = leon_eirq_get(cpu); - if ((eirq & 0x10) && irq_map[eirq]->irq) /* bit4 tells if IRQ happened */ - generic_handle_irq(irq_map[eirq]->irq); + p = irq_map[eirq]; + if ((eirq & 0x10) && p && p->irq) /* bit4 tells if IRQ happened */ + generic_handle_irq(p->irq); } /* The extended IRQ controller has been found, this function registers it */ -void leon_eirq_setup(unsigned int eirq) +static void leon_eirq_setup(unsigned int eirq) { unsigned long mask, oldmask; unsigned int veirq; @@ -211,6 +212,7 @@ unsigned int leon_build_device_irq(unsigned int real_irq, { unsigned int irq; unsigned long mask; + struct irq_desc *desc; irq = 0; mask = leon_get_irqmask(real_irq); @@ -224,9 +226,12 @@ unsigned int leon_build_device_irq(unsigned int real_irq, if (do_ack) mask |= LEON_DO_ACK_HW; - irq_set_chip_and_handler_name(irq, &leon_irq, - flow_handler, name); - irq_set_chip_data(irq, (void *)mask); + desc = irq_to_desc(irq); + if (!desc || !desc->handle_irq || desc->handle_irq == handle_bad_irq) { + irq_set_chip_and_handler_name(irq, &leon_irq, + flow_handler, name); + irq_set_chip_data(irq, (void *)mask); + } out: return irq; @@ -265,13 +270,16 @@ static u32 leon_cycles_offset(void) #ifdef CONFIG_SMP /* smp clockevent irq */ -irqreturn_t leon_percpu_timer_ce_interrupt(int irq, void *unused) +static irqreturn_t leon_percpu_timer_ce_interrupt(int irq, void *unused) { struct clock_event_device *ce; int cpu = smp_processor_id(); leon_clear_profile_irq(cpu); + if (cpu == boot_cpu_id) + timer_interrupt(irq, NULL); + ce = &per_cpu(sparc32_clockevent, cpu); irq_enter(); @@ -293,6 +301,7 @@ void __init leon_init_timers(void) int icsel; int ampopts; int err; + u32 config; sparc_config.get_cycles_offset = leon_cycles_offset; sparc_config.cs_period = 1000000 / HZ; @@ -304,7 +313,7 @@ void __init leon_init_timers(void) leondebug_irq_disable = 0; leon_debug_irqout = 0; - master_l10_counter = (unsigned int *)&dummy_master_l10_counter; + master_l10_counter = (u32 __iomem *)&dummy_master_l10_counter; dummy_master_l10_counter = 0; rootnp = of_find_node_by_path("/ambapp0"); @@ -371,23 +380,6 @@ void __init leon_init_timers(void) LEON3_BYPASS_STORE_PA( &leon3_gptimer_regs->e[leon3_gptimer_idx].ctrl, 0); -#ifdef CONFIG_SMP - leon3_ticker_irq = leon3_gptimer_irq + 1 + leon3_gptimer_idx; - - if (!(LEON3_BYPASS_LOAD_PA(&leon3_gptimer_regs->config) & - (1<<LEON3_GPTIMER_SEPIRQ))) { - printk(KERN_ERR "timer not configured with separate irqs\n"); - BUG(); - } - - LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx+1].val, - 0); - LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx+1].rld, - (((1000000/HZ) - 1))); - LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx+1].ctrl, - 0); -#endif - /* * The IRQ controller may (if implemented) consist of multiple * IRQ controllers, each mapped on a 4Kb boundary. @@ -410,13 +402,6 @@ void __init leon_init_timers(void) if (eirq != 0) leon_eirq_setup(eirq); - irq = _leon_build_device_irq(NULL, leon3_gptimer_irq+leon3_gptimer_idx); - err = request_irq(irq, timer_interrupt, IRQF_TIMER, "timer", NULL); - if (err) { - printk(KERN_ERR "unable to attach timer IRQ%d\n", irq); - prom_halt(); - } - #ifdef CONFIG_SMP { unsigned long flags; @@ -433,30 +418,31 @@ void __init leon_init_timers(void) } #endif - LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx].ctrl, - LEON3_GPTIMER_EN | - LEON3_GPTIMER_RL | - LEON3_GPTIMER_LD | - LEON3_GPTIMER_IRQEN); + config = LEON3_BYPASS_LOAD_PA(&leon3_gptimer_regs->config); + if (config & (1 << LEON3_GPTIMER_SEPIRQ)) + leon3_gptimer_irq += leon3_gptimer_idx; + else if ((config & LEON3_GPTIMER_TIMERS) > 1) + pr_warn("GPTIMER uses shared irqs, using other timers of the same core will fail.\n"); #ifdef CONFIG_SMP /* Install per-cpu IRQ handler for broadcasted ticker */ - irq = leon_build_device_irq(leon3_ticker_irq, handle_percpu_irq, + irq = leon_build_device_irq(leon3_gptimer_irq, handle_percpu_irq, "per-cpu", 0); err = request_irq(irq, leon_percpu_timer_ce_interrupt, - IRQF_PERCPU | IRQF_TIMER, "ticker", - NULL); + IRQF_PERCPU | IRQF_TIMER, "timer", NULL); +#else + irq = _leon_build_device_irq(NULL, leon3_gptimer_irq); + err = request_irq(irq, timer_interrupt, IRQF_TIMER, "timer", NULL); +#endif if (err) { - printk(KERN_ERR "unable to attach ticker IRQ%d\n", irq); + pr_err("Unable to attach timer IRQ%d\n", irq); prom_halt(); } - - LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx+1].ctrl, + LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx].ctrl, LEON3_GPTIMER_EN | LEON3_GPTIMER_RL | LEON3_GPTIMER_LD | LEON3_GPTIMER_IRQEN); -#endif return; bad: printk(KERN_ERR "No Timer/irqctrl found\n"); diff --git a/arch/sparc/kernel/leon_pci.c b/arch/sparc/kernel/leon_pci.c index fc052116156..899b7203a4e 100644 --- a/arch/sparc/kernel/leon_pci.c +++ b/arch/sparc/kernel/leon_pci.c @@ -29,6 +29,8 @@ void leon_pci_init(struct platform_device *ofdev, struct leon_pci_info *info) pci_add_resource_offset(&resources, &info->io_space, info->io_space.start - 0x1000); pci_add_resource(&resources, &info->mem_space); + info->busn.flags = IORESOURCE_BUS; + pci_add_resource(&resources, &info->busn); root_bus = pci_scan_root_bus(&ofdev->dev, 0, info->ops, info, &resources); @@ -43,7 +45,7 @@ void leon_pci_init(struct platform_device *ofdev, struct leon_pci_info *info) } } -void __devinit pcibios_fixup_bus(struct pci_bus *pbus) +void pcibios_fixup_bus(struct pci_bus *pbus) { struct pci_dev *dev; int i, has_io, has_mem; @@ -96,87 +98,3 @@ resource_size_t pcibios_align_resource(void *data, const struct resource *res, { return res->start; } - -int pcibios_enable_device(struct pci_dev *dev, int mask) -{ - return pci_enable_resources(dev, mask); -} - -/* in/out routines taken from pcic.c - * - * This probably belongs here rather than ioport.c because - * we do not want this crud linked into SBus kernels. - * Also, think for a moment about likes of floppy.c that - * include architecture specific parts. They may want to redefine ins/outs. - * - * We do not use horrible macros here because we want to - * advance pointer by sizeof(size). - */ -void outsb(unsigned long addr, const void *src, unsigned long count) -{ - while (count) { - count -= 1; - outb(*(const char *)src, addr); - src += 1; - /* addr += 1; */ - } -} -EXPORT_SYMBOL(outsb); - -void outsw(unsigned long addr, const void *src, unsigned long count) -{ - while (count) { - count -= 2; - outw(*(const short *)src, addr); - src += 2; - /* addr += 2; */ - } -} -EXPORT_SYMBOL(outsw); - -void outsl(unsigned long addr, const void *src, unsigned long count) -{ - while (count) { - count -= 4; - outl(*(const long *)src, addr); - src += 4; - /* addr += 4; */ - } -} -EXPORT_SYMBOL(outsl); - -void insb(unsigned long addr, void *dst, unsigned long count) -{ - while (count) { - count -= 1; - *(unsigned char *)dst = inb(addr); - dst += 1; - /* addr += 1; */ - } -} -EXPORT_SYMBOL(insb); - -void insw(unsigned long addr, void *dst, unsigned long count) -{ - while (count) { - count -= 2; - *(unsigned short *)dst = inw(addr); - dst += 2; - /* addr += 2; */ - } -} -EXPORT_SYMBOL(insw); - -void insl(unsigned long addr, void *dst, unsigned long count) -{ - while (count) { - count -= 4; - /* - * XXX I am sure we are in for an unaligned trap here. - */ - *(unsigned long *)dst = inl(addr); - dst += 4; - /* addr += 4; */ - } -} -EXPORT_SYMBOL(insl); diff --git a/arch/sparc/kernel/leon_pci_grpci1.c b/arch/sparc/kernel/leon_pci_grpci1.c new file mode 100644 index 00000000000..c8bf26edfa7 --- /dev/null +++ b/arch/sparc/kernel/leon_pci_grpci1.c @@ -0,0 +1,722 @@ +/* + * leon_pci_grpci1.c: GRPCI1 Host PCI driver + * + * Copyright (C) 2013 Aeroflex Gaisler AB + * + * This GRPCI1 driver does not support PCI interrupts taken from + * GPIO pins. Interrupt generation at PCI parity and system error + * detection is by default turned off since some GRPCI1 cores does + * not support detection. It can be turned on from the bootloader + * using the all_pci_errors property. + * + * Contributors: Daniel Hellstrom <daniel@gaisler.com> + */ + +#include <linux/of_device.h> +#include <linux/export.h> +#include <linux/kernel.h> +#include <linux/of_irq.h> +#include <linux/delay.h> +#include <linux/pci.h> + +#include <asm/leon_pci.h> +#include <asm/sections.h> +#include <asm/vaddrs.h> +#include <asm/leon.h> +#include <asm/io.h> + +#include "irq.h" + +/* Enable/Disable Debugging Configuration Space Access */ +#undef GRPCI1_DEBUG_CFGACCESS + +/* + * GRPCI1 APB Register MAP + */ +struct grpci1_regs { + unsigned int cfg_stat; /* 0x00 Configuration / Status */ + unsigned int bar0; /* 0x04 BAR0 (RO) */ + unsigned int page0; /* 0x08 PAGE0 (RO) */ + unsigned int bar1; /* 0x0C BAR1 (RO) */ + unsigned int page1; /* 0x10 PAGE1 */ + unsigned int iomap; /* 0x14 IO Map */ + unsigned int stat_cmd; /* 0x18 PCI Status & Command (RO) */ + unsigned int irq; /* 0x1C Interrupt register */ +}; + +#define REGLOAD(a) (be32_to_cpu(__raw_readl(&(a)))) +#define REGSTORE(a, v) (__raw_writel(cpu_to_be32(v), &(a))) + +#define PAGE0_BTEN_BIT 0 +#define PAGE0_BTEN (1 << PAGE0_BTEN_BIT) + +#define CFGSTAT_HOST_BIT 13 +#define CFGSTAT_CTO_BIT 8 +#define CFGSTAT_HOST (1 << CFGSTAT_HOST_BIT) +#define CFGSTAT_CTO (1 << CFGSTAT_CTO_BIT) + +#define IRQ_DPE (1 << 9) +#define IRQ_SSE (1 << 8) +#define IRQ_RMA (1 << 7) +#define IRQ_RTA (1 << 6) +#define IRQ_STA (1 << 5) +#define IRQ_DPED (1 << 4) +#define IRQ_INTD (1 << 3) +#define IRQ_INTC (1 << 2) +#define IRQ_INTB (1 << 1) +#define IRQ_INTA (1 << 0) +#define IRQ_DEF_ERRORS (IRQ_RMA | IRQ_RTA | IRQ_STA) +#define IRQ_ALL_ERRORS (IRQ_DPED | IRQ_DEF_ERRORS | IRQ_SSE | IRQ_DPE) +#define IRQ_INTX (IRQ_INTA | IRQ_INTB | IRQ_INTC | IRQ_INTD) +#define IRQ_MASK_BIT 16 + +#define DEF_PCI_ERRORS (PCI_STATUS_SIG_TARGET_ABORT | \ + PCI_STATUS_REC_TARGET_ABORT | \ + PCI_STATUS_REC_MASTER_ABORT) +#define ALL_PCI_ERRORS (PCI_STATUS_PARITY | PCI_STATUS_DETECTED_PARITY | \ + PCI_STATUS_SIG_SYSTEM_ERROR | DEF_PCI_ERRORS) + +#define TGT 256 + +struct grpci1_priv { + struct leon_pci_info info; /* must be on top of this structure */ + struct grpci1_regs __iomem *regs; /* GRPCI register map */ + struct device *dev; + int pci_err_mask; /* STATUS register error mask */ + int irq; /* LEON irqctrl GRPCI IRQ */ + unsigned char irq_map[4]; /* GRPCI nexus PCI INTX# IRQs */ + unsigned int irq_err; /* GRPCI nexus Virt Error IRQ */ + + /* AHB PCI Windows */ + unsigned long pci_area; /* MEMORY */ + unsigned long pci_area_end; + unsigned long pci_io; /* I/O */ + unsigned long pci_conf; /* CONFIGURATION */ + unsigned long pci_conf_end; + unsigned long pci_io_va; +}; + +static struct grpci1_priv *grpci1priv; + +static int grpci1_cfg_w32(struct grpci1_priv *priv, unsigned int bus, + unsigned int devfn, int where, u32 val); + +static int grpci1_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) +{ + struct grpci1_priv *priv = dev->bus->sysdata; + int irq_group; + + /* Use default IRQ decoding on PCI BUS0 according slot numbering */ + irq_group = slot & 0x3; + pin = ((pin - 1) + irq_group) & 0x3; + + return priv->irq_map[pin]; +} + +static int grpci1_cfg_r32(struct grpci1_priv *priv, unsigned int bus, + unsigned int devfn, int where, u32 *val) +{ + u32 *pci_conf, tmp, cfg; + + if (where & 0x3) + return -EINVAL; + + if (bus == 0) { + devfn += (0x8 * 6); /* start at AD16=Device0 */ + } else if (bus == TGT) { + bus = 0; + devfn = 0; /* special case: bridge controller itself */ + } + + /* Select bus */ + cfg = REGLOAD(priv->regs->cfg_stat); + REGSTORE(priv->regs->cfg_stat, (cfg & ~(0xf << 23)) | (bus << 23)); + + /* do read access */ + pci_conf = (u32 *) (priv->pci_conf | (devfn << 8) | (where & 0xfc)); + tmp = LEON3_BYPASS_LOAD_PA(pci_conf); + + /* check if master abort was received */ + if (REGLOAD(priv->regs->cfg_stat) & CFGSTAT_CTO) { + *val = 0xffffffff; + /* Clear Master abort bit in PCI cfg space (is set) */ + tmp = REGLOAD(priv->regs->stat_cmd); + grpci1_cfg_w32(priv, TGT, 0, PCI_COMMAND, tmp); + } else { + /* Bus always little endian (unaffected by byte-swapping) */ + *val = swab32(tmp); + } + + return 0; +} + +static int grpci1_cfg_r16(struct grpci1_priv *priv, unsigned int bus, + unsigned int devfn, int where, u32 *val) +{ + u32 v; + int ret; + + if (where & 0x1) + return -EINVAL; + ret = grpci1_cfg_r32(priv, bus, devfn, where & ~0x3, &v); + *val = 0xffff & (v >> (8 * (where & 0x3))); + return ret; +} + +static int grpci1_cfg_r8(struct grpci1_priv *priv, unsigned int bus, + unsigned int devfn, int where, u32 *val) +{ + u32 v; + int ret; + + ret = grpci1_cfg_r32(priv, bus, devfn, where & ~0x3, &v); + *val = 0xff & (v >> (8 * (where & 3))); + + return ret; +} + +static int grpci1_cfg_w32(struct grpci1_priv *priv, unsigned int bus, + unsigned int devfn, int where, u32 val) +{ + unsigned int *pci_conf; + u32 cfg; + + if (where & 0x3) + return -EINVAL; + + if (bus == 0) { + devfn += (0x8 * 6); /* start at AD16=Device0 */ + } else if (bus == TGT) { + bus = 0; + devfn = 0; /* special case: bridge controller itself */ + } + + /* Select bus */ + cfg = REGLOAD(priv->regs->cfg_stat); + REGSTORE(priv->regs->cfg_stat, (cfg & ~(0xf << 23)) | (bus << 23)); + + pci_conf = (unsigned int *) (priv->pci_conf | + (devfn << 8) | (where & 0xfc)); + LEON3_BYPASS_STORE_PA(pci_conf, swab32(val)); + + return 0; +} + +static int grpci1_cfg_w16(struct grpci1_priv *priv, unsigned int bus, + unsigned int devfn, int where, u32 val) +{ + int ret; + u32 v; + + if (where & 0x1) + return -EINVAL; + ret = grpci1_cfg_r32(priv, bus, devfn, where&~3, &v); + if (ret) + return ret; + v = (v & ~(0xffff << (8 * (where & 0x3)))) | + ((0xffff & val) << (8 * (where & 0x3))); + return grpci1_cfg_w32(priv, bus, devfn, where & ~0x3, v); +} + +static int grpci1_cfg_w8(struct grpci1_priv *priv, unsigned int bus, + unsigned int devfn, int where, u32 val) +{ + int ret; + u32 v; + + ret = grpci1_cfg_r32(priv, bus, devfn, where & ~0x3, &v); + if (ret != 0) + return ret; + v = (v & ~(0xff << (8 * (where & 0x3)))) | + ((0xff & val) << (8 * (where & 0x3))); + return grpci1_cfg_w32(priv, bus, devfn, where & ~0x3, v); +} + +/* Read from Configuration Space. When entering here the PCI layer has taken + * the pci_lock spinlock and IRQ is off. + */ +static int grpci1_read_config(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 *val) +{ + struct grpci1_priv *priv = grpci1priv; + unsigned int busno = bus->number; + int ret; + + if (PCI_SLOT(devfn) > 15 || busno > 15) { + *val = ~0; + return 0; + } + + switch (size) { + case 1: + ret = grpci1_cfg_r8(priv, busno, devfn, where, val); + break; + case 2: + ret = grpci1_cfg_r16(priv, busno, devfn, where, val); + break; + case 4: + ret = grpci1_cfg_r32(priv, busno, devfn, where, val); + break; + default: + ret = -EINVAL; + break; + } + +#ifdef GRPCI1_DEBUG_CFGACCESS + printk(KERN_INFO + "grpci1_read_config: [%02x:%02x:%x] ofs=%d val=%x size=%d\n", + busno, PCI_SLOT(devfn), PCI_FUNC(devfn), where, *val, size); +#endif + + return ret; +} + +/* Write to Configuration Space. When entering here the PCI layer has taken + * the pci_lock spinlock and IRQ is off. + */ +static int grpci1_write_config(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 val) +{ + struct grpci1_priv *priv = grpci1priv; + unsigned int busno = bus->number; + + if (PCI_SLOT(devfn) > 15 || busno > 15) + return 0; + +#ifdef GRPCI1_DEBUG_CFGACCESS + printk(KERN_INFO + "grpci1_write_config: [%02x:%02x:%x] ofs=%d size=%d val=%x\n", + busno, PCI_SLOT(devfn), PCI_FUNC(devfn), where, size, val); +#endif + + switch (size) { + default: + return -EINVAL; + case 1: + return grpci1_cfg_w8(priv, busno, devfn, where, val); + case 2: + return grpci1_cfg_w16(priv, busno, devfn, where, val); + case 4: + return grpci1_cfg_w32(priv, busno, devfn, where, val); + } +} + +static struct pci_ops grpci1_ops = { + .read = grpci1_read_config, + .write = grpci1_write_config, +}; + +/* GENIRQ IRQ chip implementation for grpci1 irqmode=0..2. In configuration + * 3 where all PCI Interrupts has a separate IRQ on the system IRQ controller + * this is not needed and the standard IRQ controller can be used. + */ + +static void grpci1_mask_irq(struct irq_data *data) +{ + u32 irqidx; + struct grpci1_priv *priv = grpci1priv; + + irqidx = (u32)data->chip_data - 1; + if (irqidx > 3) /* only mask PCI interrupts here */ + return; + irqidx += IRQ_MASK_BIT; + + REGSTORE(priv->regs->irq, REGLOAD(priv->regs->irq) & ~(1 << irqidx)); +} + +static void grpci1_unmask_irq(struct irq_data *data) +{ + u32 irqidx; + struct grpci1_priv *priv = grpci1priv; + + irqidx = (u32)data->chip_data - 1; + if (irqidx > 3) /* only unmask PCI interrupts here */ + return; + irqidx += IRQ_MASK_BIT; + + REGSTORE(priv->regs->irq, REGLOAD(priv->regs->irq) | (1 << irqidx)); +} + +static unsigned int grpci1_startup_irq(struct irq_data *data) +{ + grpci1_unmask_irq(data); + return 0; +} + +static void grpci1_shutdown_irq(struct irq_data *data) +{ + grpci1_mask_irq(data); +} + +static struct irq_chip grpci1_irq = { + .name = "grpci1", + .irq_startup = grpci1_startup_irq, + .irq_shutdown = grpci1_shutdown_irq, + .irq_mask = grpci1_mask_irq, + .irq_unmask = grpci1_unmask_irq, +}; + +/* Handle one or multiple IRQs from the PCI core */ +static void grpci1_pci_flow_irq(unsigned int irq, struct irq_desc *desc) +{ + struct grpci1_priv *priv = grpci1priv; + int i, ack = 0; + unsigned int irqreg; + + irqreg = REGLOAD(priv->regs->irq); + irqreg = (irqreg >> IRQ_MASK_BIT) & irqreg; + + /* Error Interrupt? */ + if (irqreg & IRQ_ALL_ERRORS) { + generic_handle_irq(priv->irq_err); + ack = 1; + } + + /* PCI Interrupt? */ + if (irqreg & IRQ_INTX) { + /* Call respective PCI Interrupt handler */ + for (i = 0; i < 4; i++) { + if (irqreg & (1 << i)) + generic_handle_irq(priv->irq_map[i]); + } + ack = 1; + } + + /* + * Call "first level" IRQ chip end-of-irq handler. It will ACK LEON IRQ + * Controller, this must be done after IRQ sources have been handled to + * avoid double IRQ generation + */ + if (ack) + desc->irq_data.chip->irq_eoi(&desc->irq_data); +} + +/* Create a virtual IRQ */ +static unsigned int grpci1_build_device_irq(unsigned int irq) +{ + unsigned int virq = 0, pil; + + pil = 1 << 8; + virq = irq_alloc(irq, pil); + if (virq == 0) + goto out; + + irq_set_chip_and_handler_name(virq, &grpci1_irq, handle_simple_irq, + "pcilvl"); + irq_set_chip_data(virq, (void *)irq); + +out: + return virq; +} + +/* + * Initialize mappings AMBA<->PCI, clear IRQ state, setup PCI interface + * + * Target BARs: + * BAR0: unused in this implementation + * BAR1: peripheral DMA to host's memory (size at least 256MByte) + * BAR2..BAR5: not implemented in hardware + */ +static void grpci1_hw_init(struct grpci1_priv *priv) +{ + u32 ahbadr, bar_sz, data, pciadr; + struct grpci1_regs __iomem *regs = priv->regs; + + /* set 1:1 mapping between AHB -> PCI memory space */ + REGSTORE(regs->cfg_stat, priv->pci_area & 0xf0000000); + + /* map PCI accesses to target BAR1 to Linux kernel memory 1:1 */ + ahbadr = 0xf0000000 & (u32)__pa(PAGE_ALIGN((unsigned long) &_end)); + REGSTORE(regs->page1, ahbadr); + + /* translate I/O accesses to 0, I/O Space always @ PCI low 64Kbytes */ + REGSTORE(regs->iomap, REGLOAD(regs->iomap) & 0x0000ffff); + + /* disable and clear pending interrupts */ + REGSTORE(regs->irq, 0); + + /* Setup BAR0 outside access range so that it does not conflict with + * peripheral DMA. There is no need to set up the PAGE0 register. + */ + grpci1_cfg_w32(priv, TGT, 0, PCI_BASE_ADDRESS_0, 0xffffffff); + grpci1_cfg_r32(priv, TGT, 0, PCI_BASE_ADDRESS_0, &bar_sz); + bar_sz = ~bar_sz + 1; + pciadr = priv->pci_area - bar_sz; + grpci1_cfg_w32(priv, TGT, 0, PCI_BASE_ADDRESS_0, pciadr); + + /* + * Setup the Host's PCI Target BAR1 for other peripherals to access, + * and do DMA to the host's memory. + */ + grpci1_cfg_w32(priv, TGT, 0, PCI_BASE_ADDRESS_1, ahbadr); + + /* + * Setup Latency Timer and cache line size. Default cache line + * size will result in poor performance (256 word fetches), 0xff + * will set it according to the max size of the PCI FIFO. + */ + grpci1_cfg_w8(priv, TGT, 0, PCI_CACHE_LINE_SIZE, 0xff); + grpci1_cfg_w8(priv, TGT, 0, PCI_LATENCY_TIMER, 0x40); + + /* set as bus master, enable pci memory responses, clear status bits */ + grpci1_cfg_r32(priv, TGT, 0, PCI_COMMAND, &data); + data |= (PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); + grpci1_cfg_w32(priv, TGT, 0, PCI_COMMAND, data); +} + +static irqreturn_t grpci1_jump_interrupt(int irq, void *arg) +{ + struct grpci1_priv *priv = arg; + dev_err(priv->dev, "Jump IRQ happened\n"); + return IRQ_NONE; +} + +/* Handle GRPCI1 Error Interrupt */ +static irqreturn_t grpci1_err_interrupt(int irq, void *arg) +{ + struct grpci1_priv *priv = arg; + u32 status; + + grpci1_cfg_r16(priv, TGT, 0, PCI_STATUS, &status); + status &= priv->pci_err_mask; + + if (status == 0) + return IRQ_NONE; + + if (status & PCI_STATUS_PARITY) + dev_err(priv->dev, "Data Parity Error\n"); + + if (status & PCI_STATUS_SIG_TARGET_ABORT) + dev_err(priv->dev, "Signalled Target Abort\n"); + + if (status & PCI_STATUS_REC_TARGET_ABORT) + dev_err(priv->dev, "Received Target Abort\n"); + + if (status & PCI_STATUS_REC_MASTER_ABORT) + dev_err(priv->dev, "Received Master Abort\n"); + + if (status & PCI_STATUS_SIG_SYSTEM_ERROR) + dev_err(priv->dev, "Signalled System Error\n"); + + if (status & PCI_STATUS_DETECTED_PARITY) + dev_err(priv->dev, "Parity Error\n"); + + /* Clear handled INT TYPE IRQs */ + grpci1_cfg_w16(priv, TGT, 0, PCI_STATUS, status); + + return IRQ_HANDLED; +} + +static int grpci1_of_probe(struct platform_device *ofdev) +{ + struct grpci1_regs __iomem *regs; + struct grpci1_priv *priv; + int err, len; + const int *tmp; + u32 cfg, size, err_mask; + struct resource *res; + + if (grpci1priv) { + dev_err(&ofdev->dev, "only one GRPCI1 supported\n"); + return -ENODEV; + } + + if (ofdev->num_resources < 3) { + dev_err(&ofdev->dev, "not enough APB/AHB resources\n"); + return -EIO; + } + + priv = devm_kzalloc(&ofdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) { + dev_err(&ofdev->dev, "memory allocation failed\n"); + return -ENOMEM; + } + platform_set_drvdata(ofdev, priv); + priv->dev = &ofdev->dev; + + /* find device register base address */ + res = platform_get_resource(ofdev, IORESOURCE_MEM, 0); + regs = devm_ioremap_resource(&ofdev->dev, res); + if (IS_ERR(regs)) + return PTR_ERR(regs); + + /* + * check that we're in Host Slot and that we can act as a Host Bridge + * and not only as target/peripheral. + */ + cfg = REGLOAD(regs->cfg_stat); + if ((cfg & CFGSTAT_HOST) == 0) { + dev_err(&ofdev->dev, "not in host system slot\n"); + return -EIO; + } + + /* check that BAR1 support 256 MByte so that we can map kernel space */ + REGSTORE(regs->page1, 0xffffffff); + size = ~REGLOAD(regs->page1) + 1; + if (size < 0x10000000) { + dev_err(&ofdev->dev, "BAR1 must be at least 256MByte\n"); + return -EIO; + } + + /* hardware must support little-endian PCI (byte-twisting) */ + if ((REGLOAD(regs->page0) & PAGE0_BTEN) == 0) { + dev_err(&ofdev->dev, "byte-twisting is required\n"); + return -EIO; + } + + priv->regs = regs; + priv->irq = irq_of_parse_and_map(ofdev->dev.of_node, 0); + dev_info(&ofdev->dev, "host found at 0x%p, irq%d\n", regs, priv->irq); + + /* Find PCI Memory, I/O and Configuration Space Windows */ + priv->pci_area = ofdev->resource[1].start; + priv->pci_area_end = ofdev->resource[1].end+1; + priv->pci_io = ofdev->resource[2].start; + priv->pci_conf = ofdev->resource[2].start + 0x10000; + priv->pci_conf_end = priv->pci_conf + 0x10000; + priv->pci_io_va = (unsigned long)ioremap(priv->pci_io, 0x10000); + if (!priv->pci_io_va) { + dev_err(&ofdev->dev, "unable to map PCI I/O area\n"); + return -EIO; + } + + printk(KERN_INFO + "GRPCI1: MEMORY SPACE [0x%08lx - 0x%08lx]\n" + " I/O SPACE [0x%08lx - 0x%08lx]\n" + " CONFIG SPACE [0x%08lx - 0x%08lx]\n", + priv->pci_area, priv->pci_area_end-1, + priv->pci_io, priv->pci_conf-1, + priv->pci_conf, priv->pci_conf_end-1); + + /* + * I/O Space resources in I/O Window mapped into Virtual Adr Space + * We never use low 4KB because some devices seem have problems using + * address 0. + */ + priv->info.io_space.name = "GRPCI1 PCI I/O Space"; + priv->info.io_space.start = priv->pci_io_va + 0x1000; + priv->info.io_space.end = priv->pci_io_va + 0x10000 - 1; + priv->info.io_space.flags = IORESOURCE_IO; + + /* + * grpci1 has no prefetchable memory, map everything as + * non-prefetchable memory + */ + priv->info.mem_space.name = "GRPCI1 PCI MEM Space"; + priv->info.mem_space.start = priv->pci_area; + priv->info.mem_space.end = priv->pci_area_end - 1; + priv->info.mem_space.flags = IORESOURCE_MEM; + + if (request_resource(&iomem_resource, &priv->info.mem_space) < 0) { + dev_err(&ofdev->dev, "unable to request PCI memory area\n"); + err = -ENOMEM; + goto err1; + } + + if (request_resource(&ioport_resource, &priv->info.io_space) < 0) { + dev_err(&ofdev->dev, "unable to request PCI I/O area\n"); + err = -ENOMEM; + goto err2; + } + + /* setup maximum supported PCI buses */ + priv->info.busn.name = "GRPCI1 busn"; + priv->info.busn.start = 0; + priv->info.busn.end = 15; + + grpci1priv = priv; + + /* Initialize hardware */ + grpci1_hw_init(priv); + + /* + * Get PCI Interrupt to System IRQ mapping and setup IRQ handling + * Error IRQ. All PCI and PCI-Error interrupts are shared using the + * same system IRQ. + */ + leon_update_virq_handling(priv->irq, grpci1_pci_flow_irq, "pcilvl", 0); + + priv->irq_map[0] = grpci1_build_device_irq(1); + priv->irq_map[1] = grpci1_build_device_irq(2); + priv->irq_map[2] = grpci1_build_device_irq(3); + priv->irq_map[3] = grpci1_build_device_irq(4); + priv->irq_err = grpci1_build_device_irq(5); + + printk(KERN_INFO " PCI INTA..D#: IRQ%d, IRQ%d, IRQ%d, IRQ%d\n", + priv->irq_map[0], priv->irq_map[1], priv->irq_map[2], + priv->irq_map[3]); + + /* Enable IRQs on LEON IRQ controller */ + err = devm_request_irq(&ofdev->dev, priv->irq, grpci1_jump_interrupt, 0, + "GRPCI1_JUMP", priv); + if (err) { + dev_err(&ofdev->dev, "ERR IRQ request failed: %d\n", err); + goto err3; + } + + /* Setup IRQ handler for access errors */ + err = devm_request_irq(&ofdev->dev, priv->irq_err, + grpci1_err_interrupt, IRQF_SHARED, "GRPCI1_ERR", + priv); + if (err) { + dev_err(&ofdev->dev, "ERR VIRQ request failed: %d\n", err); + goto err3; + } + + tmp = of_get_property(ofdev->dev.of_node, "all_pci_errors", &len); + if (tmp && (len == 4)) { + priv->pci_err_mask = ALL_PCI_ERRORS; + err_mask = IRQ_ALL_ERRORS << IRQ_MASK_BIT; + } else { + priv->pci_err_mask = DEF_PCI_ERRORS; + err_mask = IRQ_DEF_ERRORS << IRQ_MASK_BIT; + } + + /* + * Enable Error Interrupts. PCI interrupts are unmasked once request_irq + * is called by the PCI Device drivers + */ + REGSTORE(regs->irq, err_mask); + + /* Init common layer and scan buses */ + priv->info.ops = &grpci1_ops; + priv->info.map_irq = grpci1_map_irq; + leon_pci_init(ofdev, &priv->info); + + return 0; + +err3: + release_resource(&priv->info.io_space); +err2: + release_resource(&priv->info.mem_space); +err1: + iounmap((void __iomem *)priv->pci_io_va); + grpci1priv = NULL; + return err; +} + +static struct of_device_id grpci1_of_match[] = { + { + .name = "GAISLER_PCIFBRG", + }, + { + .name = "01_014", + }, + {}, +}; + +static struct platform_driver grpci1_of_driver = { + .driver = { + .name = "grpci1", + .owner = THIS_MODULE, + .of_match_table = grpci1_of_match, + }, + .probe = grpci1_of_probe, +}; + +static int __init grpci1_init(void) +{ + return platform_driver_register(&grpci1_of_driver); +} + +subsys_initcall(grpci1_init); diff --git a/arch/sparc/kernel/leon_pci_grpci2.c b/arch/sparc/kernel/leon_pci_grpci2.c index b1bc38853a3..e433a4d69fe 100644 --- a/arch/sparc/kernel/leon_pci_grpci2.c +++ b/arch/sparc/kernel/leon_pci_grpci2.c @@ -8,6 +8,7 @@ #include <linux/of_device.h> #include <linux/kernel.h> #include <linux/pci.h> +#include <linux/slab.h> #include <linux/delay.h> #include <linux/export.h> #include <asm/io.h> @@ -186,9 +187,11 @@ struct grpci2_cap_first { #define CAP9_IOMAP_OFS 0x20 #define CAP9_BARSIZE_OFS 0x24 +#define TGT 256 + struct grpci2_priv { struct leon_pci_info info; /* must be on top of this structure */ - struct grpci2_regs *regs; + struct grpci2_regs __iomem *regs; char irq; char irq_mode; /* IRQ Mode from CAPSTS REG */ char bt_enabled; @@ -212,10 +215,10 @@ struct grpci2_priv { struct grpci2_barcfg tgtbars[6]; }; -DEFINE_SPINLOCK(grpci2_dev_lock); -struct grpci2_priv *grpci2priv; +static DEFINE_SPINLOCK(grpci2_dev_lock); +static struct grpci2_priv *grpci2priv; -int grpci2_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) +static int grpci2_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { struct grpci2_priv *priv = dev->bus->sysdata; int irq_group; @@ -237,8 +240,12 @@ static int grpci2_cfg_r32(struct grpci2_priv *priv, unsigned int bus, if (where & 0x3) return -EINVAL; - if (bus == 0 && PCI_SLOT(devfn) != 0) - devfn += (0x8 * 6); + if (bus == 0) { + devfn += (0x8 * 6); /* start at AD16=Device0 */ + } else if (bus == TGT) { + bus = 0; + devfn = 0; /* special case: bridge controller itself */ + } /* Select bus */ spin_lock_irqsave(&grpci2_dev_lock, flags); @@ -263,7 +270,7 @@ static int grpci2_cfg_r32(struct grpci2_priv *priv, unsigned int bus, *val = 0xffffffff; } else { /* Bus always little endian (unaffected by byte-swapping) */ - *val = flip_dword(tmp); + *val = swab32(tmp); } return 0; @@ -303,8 +310,12 @@ static int grpci2_cfg_w32(struct grpci2_priv *priv, unsigned int bus, if (where & 0x3) return -EINVAL; - if (bus == 0 && PCI_SLOT(devfn) != 0) - devfn += (0x8 * 6); + if (bus == 0) { + devfn += (0x8 * 6); /* start at AD16=Device0 */ + } else if (bus == TGT) { + bus = 0; + devfn = 0; /* special case: bridge controller itself */ + } /* Select bus */ spin_lock_irqsave(&grpci2_dev_lock, flags); @@ -317,7 +328,7 @@ static int grpci2_cfg_w32(struct grpci2_priv *priv, unsigned int bus, pci_conf = (unsigned int *) (priv->pci_conf | (devfn << 8) | (where & 0xfc)); - LEON3_BYPASS_STORE_PA(pci_conf, flip_dword(val)); + LEON3_BYPASS_STORE_PA(pci_conf, swab32(val)); /* Wait until GRPCI2 signals that CFG access is done, it should be * done instantaneously unless a DMA operation is ongoing... @@ -368,7 +379,7 @@ static int grpci2_read_config(struct pci_bus *bus, unsigned int devfn, unsigned int busno = bus->number; int ret; - if (PCI_SLOT(devfn) > 15 || (PCI_SLOT(devfn) == 0 && busno == 0)) { + if (PCI_SLOT(devfn) > 15 || busno > 255) { *val = ~0; return 0; } @@ -406,7 +417,7 @@ static int grpci2_write_config(struct pci_bus *bus, unsigned int devfn, struct grpci2_priv *priv = grpci2priv; unsigned int busno = bus->number; - if (PCI_SLOT(devfn) > 15 || (PCI_SLOT(devfn) == 0 && busno == 0)) + if (PCI_SLOT(devfn) > 15 || busno > 255) return 0; #ifdef GRPCI2_DEBUG_CFGACCESS @@ -550,10 +561,10 @@ out: return virq; } -void grpci2_hw_init(struct grpci2_priv *priv) +static void grpci2_hw_init(struct grpci2_priv *priv) { u32 ahbadr, pciadr, bar_sz, capptr, io_map, data; - struct grpci2_regs *regs = priv->regs; + struct grpci2_regs __iomem *regs = priv->regs; int i; struct grpci2_barcfg *barcfg = priv->tgtbars; @@ -578,15 +589,15 @@ void grpci2_hw_init(struct grpci2_priv *priv) REGSTORE(regs->ahbmst_map[i], priv->pci_area); /* Get the GRPCI2 Host PCI ID */ - grpci2_cfg_r32(priv, 0, 0, PCI_VENDOR_ID, &priv->pciid); + grpci2_cfg_r32(priv, TGT, 0, PCI_VENDOR_ID, &priv->pciid); /* Get address to first (always defined) capability structure */ - grpci2_cfg_r8(priv, 0, 0, PCI_CAPABILITY_LIST, &capptr); + grpci2_cfg_r8(priv, TGT, 0, PCI_CAPABILITY_LIST, &capptr); /* Enable/Disable Byte twisting */ - grpci2_cfg_r32(priv, 0, 0, capptr+CAP9_IOMAP_OFS, &io_map); + grpci2_cfg_r32(priv, TGT, 0, capptr+CAP9_IOMAP_OFS, &io_map); io_map = (io_map & ~0x1) | (priv->bt_enabled ? 1 : 0); - grpci2_cfg_w32(priv, 0, 0, capptr+CAP9_IOMAP_OFS, io_map); + grpci2_cfg_w32(priv, TGT, 0, capptr+CAP9_IOMAP_OFS, io_map); /* Setup the Host's PCI Target BARs for other peripherals to access, * and do DMA to the host's memory. The target BARs can be sized and @@ -617,17 +628,18 @@ void grpci2_hw_init(struct grpci2_priv *priv) pciadr = 0; } } - grpci2_cfg_w32(priv, 0, 0, capptr+CAP9_BARSIZE_OFS+i*4, bar_sz); - grpci2_cfg_w32(priv, 0, 0, PCI_BASE_ADDRESS_0+i*4, pciadr); - grpci2_cfg_w32(priv, 0, 0, capptr+CAP9_BAR_OFS+i*4, ahbadr); + grpci2_cfg_w32(priv, TGT, 0, capptr+CAP9_BARSIZE_OFS+i*4, + bar_sz); + grpci2_cfg_w32(priv, TGT, 0, PCI_BASE_ADDRESS_0+i*4, pciadr); + grpci2_cfg_w32(priv, TGT, 0, capptr+CAP9_BAR_OFS+i*4, ahbadr); printk(KERN_INFO " TGT BAR[%d]: 0x%08x (PCI)-> 0x%08x\n", i, pciadr, ahbadr); } /* set as bus master and enable pci memory responses */ - grpci2_cfg_r32(priv, 0, 0, PCI_COMMAND, &data); + grpci2_cfg_r32(priv, TGT, 0, PCI_COMMAND, &data); data |= (PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); - grpci2_cfg_w32(priv, 0, 0, PCI_COMMAND, data); + grpci2_cfg_w32(priv, TGT, 0, PCI_COMMAND, data); /* Enable Error respone (CPU-TRAP) on illegal memory access. */ REGSTORE(regs->ctrl, CTRL_ER | CTRL_PE); @@ -643,7 +655,7 @@ static irqreturn_t grpci2_jump_interrupt(int irq, void *arg) static irqreturn_t grpci2_err_interrupt(int irq, void *arg) { struct grpci2_priv *priv = arg; - struct grpci2_regs *regs = priv->regs; + struct grpci2_regs __iomem *regs = priv->regs; unsigned int status; status = REGLOAD(regs->sts_cap); @@ -668,9 +680,9 @@ static irqreturn_t grpci2_err_interrupt(int irq, void *arg) return IRQ_HANDLED; } -static int __devinit grpci2_of_probe(struct platform_device *ofdev) +static int grpci2_of_probe(struct platform_device *ofdev) { - struct grpci2_regs *regs; + struct grpci2_regs __iomem *regs; struct grpci2_priv *priv; int err, i, len; const int *tmp; @@ -788,6 +800,11 @@ static int __devinit grpci2_of_probe(struct platform_device *ofdev) if (request_resource(&ioport_resource, &priv->info.io_space) < 0) goto err4; + /* setup maximum supported PCI buses */ + priv->info.busn.name = "GRPCI2 busn"; + priv->info.busn.start = 0; + priv->info.busn.end = 255; + grpci2_hw_init(priv); /* @@ -861,7 +878,7 @@ err4: release_resource(&priv->info.mem_space); err3: err = -ENOMEM; - iounmap((void *)priv->pci_io_va); + iounmap((void __iomem *)priv->pci_io_va); err2: kfree(priv); err1: diff --git a/arch/sparc/kernel/leon_pmc.c b/arch/sparc/kernel/leon_pmc.c index 4e174321097..ddcf950282e 100644 --- a/arch/sparc/kernel/leon_pmc.c +++ b/arch/sparc/kernel/leon_pmc.c @@ -9,16 +9,17 @@ #include <asm/leon_amba.h> #include <asm/cpu_type.h> #include <asm/leon.h> +#include <asm/processor.h> /* List of Systems that need fixup instructions around power-down instruction */ -unsigned int pmc_leon_fixup_ids[] = { +static unsigned int pmc_leon_fixup_ids[] = { AEROFLEX_UT699, GAISLER_GR712RC, LEON4_NEXTREME1, 0 }; -int pmc_leon_need_fixup(void) +static int pmc_leon_need_fixup(void) { unsigned int systemid = amba_system_id >> 16; unsigned int *id; @@ -37,7 +38,7 @@ int pmc_leon_need_fixup(void) * CPU idle callback function for systems that need some extra handling * See .../arch/sparc/kernel/process.c */ -void pmc_leon_idle_fixup(void) +static void pmc_leon_idle_fixup(void) { /* Prepare an address to a non-cachable region. APB is always * none-cachable. One instruction is executed after the Sleep @@ -46,8 +47,12 @@ void pmc_leon_idle_fixup(void) * MMU does not get a TLB miss here by using the MMU BYPASS ASI. */ register unsigned int address = (unsigned int)leon3_irqctrl_regs; + + /* Interrupts need to be enabled to not hang the CPU */ + local_irq_enable(); + __asm__ __volatile__ ( - "mov %%g0, %%asr19\n" + "wr %%g0, %%asr19\n" "lda [%0] %1, %%g0\n" : : "r"(address), "i"(ASI_LEON_BYPASS)); @@ -57,10 +62,13 @@ void pmc_leon_idle_fixup(void) * CPU idle callback function * See .../arch/sparc/kernel/process.c */ -void pmc_leon_idle(void) +static void pmc_leon_idle(void) { + /* Interrupts need to be enabled to not hang the CPU */ + local_irq_enable(); + /* For systems without power-down, this will be no-op */ - __asm__ __volatile__ ("mov %g0, %asr19\n\t"); + __asm__ __volatile__ ("wr %g0, %asr19\n\t"); } /* Install LEON Power Down function */ @@ -69,9 +77,9 @@ static int __init leon_pmc_install(void) if (sparc_cpu_model == sparc_leon) { /* Assign power management IDLE handler */ if (pmc_leon_need_fixup()) - pm_idle = pmc_leon_idle_fixup; + sparc_idle = pmc_leon_idle_fixup; else - pm_idle = pmc_leon_idle; + sparc_idle = pmc_leon_idle; printk(KERN_INFO "leon: power management initialized\n"); } diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c index 0f3fb6d9c8e..018ef11f57d 100644 --- a/arch/sparc/kernel/leon_smp.c +++ b/arch/sparc/kernel/leon_smp.c @@ -54,7 +54,7 @@ extern ctxd_t *srmmu_ctx_table_phys; static int smp_processors_ready; extern volatile unsigned long cpu_callin_map[NR_CPUS]; extern cpumask_t smp_commenced_mask; -void __cpuinit leon_configure_cache_smp(void); +void leon_configure_cache_smp(void); static void leon_ipi_init(void); /* IRQ number of LEON IPIs */ @@ -69,31 +69,19 @@ static inline unsigned long do_swap(volatile unsigned long *ptr, return val; } -void __cpuinit leon_callin(void) +void leon_cpu_pre_starting(void *arg) { - int cpuid = hard_smp_processor_id(); - - local_ops->cache_all(); - local_ops->tlb_all(); leon_configure_cache_smp(); +} - notify_cpu_starting(cpuid); - - /* Get our local ticker going. */ - register_percpu_ce(cpuid); - - calibrate_delay(); - smp_store_cpu_info(cpuid); - - local_ops->cache_all(); - local_ops->tlb_all(); +void leon_cpu_pre_online(void *arg) +{ + int cpuid = hard_smp_processor_id(); - /* - * Unblock the master CPU _only_ when the scheduler state - * of all secondary CPUs will be up-to-date, so after - * the SMP initialization the master will be just allowed - * to call the scheduler code. - * Allow master to continue. + /* Allow master to continue. The master will then give us the + * go-ahead by setting the smp_commenced_mask and will wait without + * timeouts until our setup is completed fully (signified by + * our bit being set in the cpu_online_mask). */ do_swap(&cpu_callin_map[cpuid], 1); @@ -110,9 +98,6 @@ void __cpuinit leon_callin(void) while (!cpumask_test_cpu(cpuid, &smp_commenced_mask)) mb(); - - local_irq_enable(); - set_cpu_online(cpuid, true); } /* @@ -121,7 +106,7 @@ void __cpuinit leon_callin(void) extern struct linux_prom_registers smp_penguin_ctable; -void __cpuinit leon_configure_cache_smp(void) +void leon_configure_cache_smp(void) { unsigned long cfg = sparc_leon3_get_dcachecfg(); int me = smp_processor_id(); @@ -145,7 +130,7 @@ void __cpuinit leon_configure_cache_smp(void) local_ops->tlb_all(); } -void leon_smp_setbroadcast(unsigned int mask) +static void leon_smp_setbroadcast(unsigned int mask) { int broadcast = ((LEON3_BYPASS_LOAD_PA(&(leon3_irqctrl_regs->mpstatus)) >> @@ -163,13 +148,6 @@ void leon_smp_setbroadcast(unsigned int mask) LEON_BYPASS_STORE_PA(&(leon3_irqctrl_regs->mpbroadcast), mask); } -unsigned int leon_smp_getbroadcast(void) -{ - unsigned int mask; - mask = LEON_BYPASS_LOAD_PA(&(leon3_irqctrl_regs->mpbroadcast)); - return mask; -} - int leon_smp_nrcpus(void) { int nrcpu = @@ -201,7 +179,7 @@ void __init leon_boot_cpus(void) } -int __cpuinit leon_boot_one_cpu(int i, struct task_struct *idle) +int leon_boot_one_cpu(int i, struct task_struct *idle) { int timeout; @@ -268,35 +246,19 @@ void __init leon_smp_done(void) /* Free unneeded trap tables */ if (!cpu_present(1)) { - ClearPageReserved(virt_to_page(&trapbase_cpu1)); - init_page_count(virt_to_page(&trapbase_cpu1)); - free_page((unsigned long)&trapbase_cpu1); - totalram_pages++; - num_physpages++; + free_reserved_page(virt_to_page(&trapbase_cpu1)); } if (!cpu_present(2)) { - ClearPageReserved(virt_to_page(&trapbase_cpu2)); - init_page_count(virt_to_page(&trapbase_cpu2)); - free_page((unsigned long)&trapbase_cpu2); - totalram_pages++; - num_physpages++; + free_reserved_page(virt_to_page(&trapbase_cpu2)); } if (!cpu_present(3)) { - ClearPageReserved(virt_to_page(&trapbase_cpu3)); - init_page_count(virt_to_page(&trapbase_cpu3)); - free_page((unsigned long)&trapbase_cpu3); - totalram_pages++; - num_physpages++; + free_reserved_page(virt_to_page(&trapbase_cpu3)); } /* Ok, they are spinning and ready to go. */ smp_processors_ready = 1; } -void leon_irq_rotate(int cpu) -{ -} - struct leon_ipi_work { int single; int msk; diff --git a/arch/sparc/kernel/mdesc.c b/arch/sparc/kernel/mdesc.c index 831c001604e..a1a4400d402 100644 --- a/arch/sparc/kernel/mdesc.c +++ b/arch/sparc/kernel/mdesc.c @@ -571,9 +571,7 @@ static void __init report_platform_properties(void) mdesc_release(hp); } -static void __cpuinit fill_in_one_cache(cpuinfo_sparc *c, - struct mdesc_handle *hp, - u64 mp) +static void fill_in_one_cache(cpuinfo_sparc *c, struct mdesc_handle *hp, u64 mp) { const u64 *level = mdesc_get_property(hp, mp, "level", NULL); const u64 *size = mdesc_get_property(hp, mp, "size", NULL); @@ -616,7 +614,7 @@ static void __cpuinit fill_in_one_cache(cpuinfo_sparc *c, } } -static void __cpuinit mark_core_ids(struct mdesc_handle *hp, u64 mp, int core_id) +static void mark_core_ids(struct mdesc_handle *hp, u64 mp, int core_id) { u64 a; @@ -649,7 +647,7 @@ static void __cpuinit mark_core_ids(struct mdesc_handle *hp, u64 mp, int core_id } } -static void __cpuinit set_core_ids(struct mdesc_handle *hp) +static void set_core_ids(struct mdesc_handle *hp) { int idx; u64 mp; @@ -674,7 +672,7 @@ static void __cpuinit set_core_ids(struct mdesc_handle *hp) } } -static void __cpuinit mark_proc_ids(struct mdesc_handle *hp, u64 mp, int proc_id) +static void mark_proc_ids(struct mdesc_handle *hp, u64 mp, int proc_id) { u64 a; @@ -693,7 +691,7 @@ static void __cpuinit mark_proc_ids(struct mdesc_handle *hp, u64 mp, int proc_id } } -static void __cpuinit __set_proc_ids(struct mdesc_handle *hp, const char *exec_unit_name) +static void __set_proc_ids(struct mdesc_handle *hp, const char *exec_unit_name) { int idx; u64 mp; @@ -714,14 +712,14 @@ static void __cpuinit __set_proc_ids(struct mdesc_handle *hp, const char *exec_u } } -static void __cpuinit set_proc_ids(struct mdesc_handle *hp) +static void set_proc_ids(struct mdesc_handle *hp) { __set_proc_ids(hp, "exec_unit"); __set_proc_ids(hp, "exec-unit"); } -static void __cpuinit get_one_mondo_bits(const u64 *p, unsigned int *mask, - unsigned long def, unsigned long max) +static void get_one_mondo_bits(const u64 *p, unsigned int *mask, + unsigned long def, unsigned long max) { u64 val; @@ -742,8 +740,8 @@ use_default: *mask = ((1U << def) * 64U) - 1U; } -static void __cpuinit get_mondo_data(struct mdesc_handle *hp, u64 mp, - struct trap_per_cpu *tb) +static void get_mondo_data(struct mdesc_handle *hp, u64 mp, + struct trap_per_cpu *tb) { static int printed; const u64 *val; @@ -769,7 +767,7 @@ static void __cpuinit get_mondo_data(struct mdesc_handle *hp, u64 mp, } } -static void * __cpuinit mdesc_iterate_over_cpus(void *(*func)(struct mdesc_handle *, u64, int, void *), void *arg, cpumask_t *mask) +static void *mdesc_iterate_over_cpus(void *(*func)(struct mdesc_handle *, u64, int, void *), void *arg, cpumask_t *mask) { struct mdesc_handle *hp = mdesc_grab(); void *ret = NULL; @@ -799,7 +797,8 @@ out: return ret; } -static void * __cpuinit record_one_cpu(struct mdesc_handle *hp, u64 mp, int cpuid, void *arg) +static void *record_one_cpu(struct mdesc_handle *hp, u64 mp, int cpuid, + void *arg) { ncpus_probed++; #ifdef CONFIG_SMP @@ -808,7 +807,7 @@ static void * __cpuinit record_one_cpu(struct mdesc_handle *hp, u64 mp, int cpui return NULL; } -void __cpuinit mdesc_populate_present_mask(cpumask_t *mask) +void mdesc_populate_present_mask(cpumask_t *mask) { if (tlb_type != hypervisor) return; @@ -841,7 +840,8 @@ void __init mdesc_get_page_sizes(cpumask_t *mask, unsigned long *pgsz_mask) mdesc_iterate_over_cpus(check_one_pgsz, pgsz_mask, mask); } -static void * __cpuinit fill_in_one_cpu(struct mdesc_handle *hp, u64 mp, int cpuid, void *arg) +static void *fill_in_one_cpu(struct mdesc_handle *hp, u64 mp, int cpuid, + void *arg) { const u64 *cfreq = mdesc_get_property(hp, mp, "clock-frequency", NULL); struct trap_per_cpu *tb; @@ -890,16 +890,12 @@ static void * __cpuinit fill_in_one_cpu(struct mdesc_handle *hp, u64 mp, int cpu return NULL; } -void __cpuinit mdesc_fill_in_cpu_data(cpumask_t *mask) +void mdesc_fill_in_cpu_data(cpumask_t *mask) { struct mdesc_handle *hp; mdesc_iterate_over_cpus(fill_in_one_cpu, NULL, mask); -#ifdef CONFIG_SMP - sparc64_multi_core = 1; -#endif - hp = mdesc_grab(); set_core_ids(hp); diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c index f1ddc0d2367..97655e0fd24 100644 --- a/arch/sparc/kernel/module.c +++ b/arch/sparc/kernel/module.c @@ -29,7 +29,7 @@ static void *module_map(unsigned long size) if (PAGE_ALIGN(size) > MODULES_LEN) return NULL; return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END, - GFP_KERNEL, PAGE_KERNEL, -1, + GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE, __builtin_return_address(0)); } #else @@ -43,10 +43,6 @@ void *module_alloc(unsigned long size) { void *ret; - /* We handle the zero case fine, unlike vmalloc */ - if (size == 0) - return NULL; - ret = module_map(size); if (ret) memset(ret, 0, size); diff --git a/arch/sparc/kernel/nmi.c b/arch/sparc/kernel/nmi.c index 6479256fd5a..33709455691 100644 --- a/arch/sparc/kernel/nmi.c +++ b/arch/sparc/kernel/nmi.c @@ -68,27 +68,16 @@ EXPORT_SYMBOL(touch_nmi_watchdog); static void die_nmi(const char *str, struct pt_regs *regs, int do_panic) { + int this_cpu = smp_processor_id(); + if (notify_die(DIE_NMIWATCHDOG, str, regs, 0, pt_regs_trap_type(regs), SIGINT) == NOTIFY_STOP) return; - console_verbose(); - bust_spinlocks(1); - - printk(KERN_EMERG "%s", str); - printk(" on CPU%d, ip %08lx, registers:\n", - smp_processor_id(), regs->tpc); - show_regs(regs); - dump_stack(); - - bust_spinlocks(0); - if (do_panic || panic_on_oops) - panic("Non maskable interrupt"); - - nmi_exit(); - local_irq_enable(); - do_exit(SIGBUS); + panic("Watchdog detected hard LOCKUP on cpu %d", this_cpu); + else + WARN(1, "Watchdog detected hard LOCKUP on cpu %d", this_cpu); } notrace __kprobes void perfctr_irq(int irq, struct pt_regs *regs) diff --git a/arch/sparc/kernel/of_device_common.c b/arch/sparc/kernel/of_device_common.c index de199bf0cb0..de0ee3971f0 100644 --- a/arch/sparc/kernel/of_device_common.c +++ b/arch/sparc/kernel/of_device_common.c @@ -1,13 +1,14 @@ #include <linux/string.h> #include <linux/kernel.h> #include <linux/of.h> -#include <linux/init.h> #include <linux/export.h> #include <linux/mod_devicetable.h> #include <linux/errno.h> #include <linux/irq.h> -#include <linux/of_device.h> #include <linux/of_platform.h> +#include <linux/of_address.h> +#include <linux/of_device.h> +#include <linux/of_irq.h> #include "of_device_common.h" diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c index 75b31bcdead..539babf00bb 100644 --- a/arch/sparc/kernel/pci.c +++ b/arch/sparc/kernel/pci.c @@ -28,6 +28,7 @@ #include <asm/apb.h> #include "pci_impl.h" +#include "kernel.h" /* List of all PCI controllers found in the system. */ struct pci_pbm_info *pci_pbm_root = NULL; @@ -254,7 +255,7 @@ static struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm, const char *type; u32 class; - dev = alloc_pci_dev(); + dev = pci_alloc_dev(bus); if (!dev) return NULL; @@ -281,7 +282,6 @@ static struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm, printk(" create device, devfn: %x, type: %s\n", devfn, type); - dev->bus = bus; dev->sysdata = node; dev->dev.parent = bus->bridge; dev->dev.bus = &pci_bus_type; @@ -327,7 +327,7 @@ static struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm, if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE) pci_set_master(dev); - dev->current_state = 4; /* unknown power state */ + dev->current_state = PCI_UNKNOWN; /* unknown power state */ dev->error_state = pci_channel_io_normal; dev->dma_mask = 0xffffffff; @@ -356,7 +356,7 @@ static struct pci_dev *of_create_pci_dev(struct pci_pbm_info *pbm, return dev; } -static void __devinit apb_calc_first_last(u8 map, u32 *first_p, u32 *last_p) +static void apb_calc_first_last(u8 map, u32 *first_p, u32 *last_p) { u32 idx, first, last; @@ -378,9 +378,9 @@ static void __devinit apb_calc_first_last(u8 map, u32 *first_p, u32 *last_p) /* Cook up fake bus resources for SUNW,simba PCI bridges which lack * a proper 'ranges' property. */ -static void __devinit apb_fake_ranges(struct pci_dev *dev, - struct pci_bus *bus, - struct pci_pbm_info *pbm) +static void apb_fake_ranges(struct pci_dev *dev, + struct pci_bus *bus, + struct pci_pbm_info *pbm) { struct pci_bus_region region; struct resource *res; @@ -393,26 +393,26 @@ static void __devinit apb_fake_ranges(struct pci_dev *dev, res->flags = IORESOURCE_IO; region.start = (first << 21); region.end = (last << 21) + ((1 << 21) - 1); - pcibios_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev->bus, res, ®ion); pci_read_config_byte(dev, APB_MEM_ADDRESS_MAP, &map); apb_calc_first_last(map, &first, &last); res = bus->resource[1]; res->flags = IORESOURCE_MEM; - region.start = (first << 21); - region.end = (last << 21) + ((1 << 21) - 1); - pcibios_bus_to_resource(dev, res, ®ion); + region.start = (first << 29); + region.end = (last << 29) + ((1 << 29) - 1); + pcibios_bus_to_resource(dev->bus, res, ®ion); } -static void __devinit pci_of_scan_bus(struct pci_pbm_info *pbm, - struct device_node *node, - struct pci_bus *bus); +static void pci_of_scan_bus(struct pci_pbm_info *pbm, + struct device_node *node, + struct pci_bus *bus); #define GET_64BIT(prop, i) ((((u64) (prop)[(i)]) << 32) | (prop)[(i)+1]) -static void __devinit of_scan_pci_bridge(struct pci_pbm_info *pbm, - struct device_node *node, - struct pci_dev *dev) +static void of_scan_pci_bridge(struct pci_pbm_info *pbm, + struct device_node *node, + struct pci_dev *dev) { struct pci_bus *bus; const u32 *busrange, *ranges; @@ -492,7 +492,7 @@ static void __devinit of_scan_pci_bridge(struct pci_pbm_info *pbm, res->flags = flags; region.start = GET_64BIT(ranges, 1); region.end = region.start + size - 1; - pcibios_bus_to_resource(dev, res, ®ion); + pcibios_bus_to_resource(dev->bus, res, ®ion); } after_ranges: sprintf(bus->name, "PCI Bus %04x:%02x", pci_domain_nr(bus), @@ -503,9 +503,9 @@ after_ranges: pci_of_scan_bus(pbm, node, bus); } -static void __devinit pci_of_scan_bus(struct pci_pbm_info *pbm, - struct device_node *node, - struct pci_bus *bus) +static void pci_of_scan_bus(struct pci_pbm_info *pbm, + struct device_node *node, + struct pci_bus *bus) { struct device_node *child; const u32 *reg; @@ -544,8 +544,7 @@ static void __devinit pci_of_scan_bus(struct pci_pbm_info *pbm, printk("PCI: dev header type: %x\n", dev->hdr_type); - if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE || - dev->hdr_type == PCI_HEADER_TYPE_CARDBUS) + if (pci_is_bridge(dev)) of_scan_pci_bridge(pbm, child, dev); } } @@ -564,7 +563,7 @@ show_pciobppath_attr(struct device * dev, struct device_attribute * attr, char * static DEVICE_ATTR(obppath, S_IRUSR | S_IRGRP | S_IROTH, show_pciobppath_attr, NULL); -static void __devinit pci_bus_register_of_sysfs(struct pci_bus *bus) +static void pci_bus_register_of_sysfs(struct pci_bus *bus) { struct pci_dev *dev; struct pci_bus *child_bus; @@ -585,8 +584,8 @@ static void __devinit pci_bus_register_of_sysfs(struct pci_bus *bus) pci_bus_register_of_sysfs(child_bus); } -struct pci_bus * __devinit pci_scan_one_pbm(struct pci_pbm_info *pbm, - struct device *parent) +struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm, + struct device *parent) { LIST_HEAD(resources); struct device_node *node = pbm->op->dev.of_node; @@ -618,7 +617,7 @@ struct pci_bus * __devinit pci_scan_one_pbm(struct pci_pbm_info *pbm, return bus; } -void __devinit pcibios_fixup_bus(struct pci_bus *pbus) +void pcibios_fixup_bus(struct pci_bus *pbus) { } @@ -773,15 +772,6 @@ static int __pci_mmap_make_offset(struct pci_dev *pdev, return 0; } -/* Set vm_flags of VMA, as appropriate for this architecture, for a pci device - * mapping. - */ -static void __pci_mmap_set_flags(struct pci_dev *dev, struct vm_area_struct *vma, - enum pci_mmap_state mmap_state) -{ - vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; -} - /* Set vm_page_prot of VMA, as appropriate for this architecture, for a pci * device mapping. */ @@ -809,7 +799,6 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, if (ret < 0) return ret; - __pci_mmap_set_flags(dev, vma, mmap_state); __pci_mmap_set_pgprot(dev, vma, mmap_state); vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); @@ -949,8 +938,7 @@ static int __init pcibios_init(void) subsys_initcall(pcibios_init); #ifdef CONFIG_SYSFS -static void __devinit pci_bus_slot_names(struct device_node *node, - struct pci_bus *bus) +static void pci_bus_slot_names(struct device_node *node, struct pci_bus *bus) { const struct pci_slot_names { u32 slot_mask; @@ -1017,6 +1005,5 @@ static int __init of_pci_slot_init(void) return 0; } - -module_init(of_pci_slot_init); +device_initcall(of_pci_slot_init); #endif diff --git a/arch/sparc/kernel/pci_common.c b/arch/sparc/kernel/pci_common.c index a6895987fb7..944a06536ec 100644 --- a/arch/sparc/kernel/pci_common.c +++ b/arch/sparc/kernel/pci_common.c @@ -5,7 +5,6 @@ #include <linux/string.h> #include <linux/slab.h> -#include <linux/init.h> #include <linux/pci.h> #include <linux/device.h> #include <linux/of_device.h> diff --git a/arch/sparc/kernel/pci_fire.c b/arch/sparc/kernel/pci_fire.c index 188f935276f..e60fc6a67e9 100644 --- a/arch/sparc/kernel/pci_fire.c +++ b/arch/sparc/kernel/pci_fire.c @@ -408,8 +408,8 @@ static void pci_fire_hw_init(struct pci_pbm_info *pbm) upa_writeq(~(u64)0, pbm->pbm_regs + FIRE_PEC_IENAB); } -static int __devinit pci_fire_pbm_init(struct pci_pbm_info *pbm, - struct platform_device *op, u32 portid) +static int pci_fire_pbm_init(struct pci_pbm_info *pbm, + struct platform_device *op, u32 portid) { const struct linux_prom64_registers *regs; struct device_node *dp = op->dev.of_node; @@ -454,7 +454,7 @@ static int __devinit pci_fire_pbm_init(struct pci_pbm_info *pbm, return 0; } -static int __devinit fire_probe(struct platform_device *op) +static int fire_probe(struct platform_device *op) { struct device_node *dp = op->dev.of_node; struct pci_pbm_info *pbm; diff --git a/arch/sparc/kernel/pci_impl.h b/arch/sparc/kernel/pci_impl.h index 918a2031c8b..75803c780af 100644 --- a/arch/sparc/kernel/pci_impl.h +++ b/arch/sparc/kernel/pci_impl.h @@ -48,8 +48,8 @@ struct sparc64_msiq_ops { unsigned long devino); }; -extern void sparc64_pbm_msi_init(struct pci_pbm_info *pbm, - const struct sparc64_msiq_ops *ops); +void sparc64_pbm_msi_init(struct pci_pbm_info *pbm, + const struct sparc64_msiq_ops *ops); struct sparc64_msiq_cookie { struct pci_pbm_info *pbm; @@ -88,7 +88,7 @@ struct pci_pbm_info { int chip_revision; /* Name used for top-level resources. */ - char *name; + const char *name; /* OBP specific information. */ struct platform_device *op; @@ -158,23 +158,23 @@ extern struct pci_pbm_info *pci_pbm_root; extern int pci_num_pbms; /* PCI bus scanning and fixup support. */ -extern void pci_get_pbm_props(struct pci_pbm_info *pbm); -extern struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm, - struct device *parent); -extern void pci_determine_mem_io_space(struct pci_pbm_info *pbm); +void pci_get_pbm_props(struct pci_pbm_info *pbm); +struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm, + struct device *parent); +void pci_determine_mem_io_space(struct pci_pbm_info *pbm); /* Error reporting support. */ -extern void pci_scan_for_target_abort(struct pci_pbm_info *, struct pci_bus *); -extern void pci_scan_for_master_abort(struct pci_pbm_info *, struct pci_bus *); -extern void pci_scan_for_parity_error(struct pci_pbm_info *, struct pci_bus *); +void pci_scan_for_target_abort(struct pci_pbm_info *, struct pci_bus *); +void pci_scan_for_master_abort(struct pci_pbm_info *, struct pci_bus *); +void pci_scan_for_parity_error(struct pci_pbm_info *, struct pci_bus *); /* Configuration space access. */ -extern void pci_config_read8(u8 *addr, u8 *ret); -extern void pci_config_read16(u16 *addr, u16 *ret); -extern void pci_config_read32(u32 *addr, u32 *ret); -extern void pci_config_write8(u8 *addr, u8 val); -extern void pci_config_write16(u16 *addr, u16 val); -extern void pci_config_write32(u32 *addr, u32 val); +void pci_config_read8(u8 *addr, u8 *ret); +void pci_config_read16(u16 *addr, u16 *ret); +void pci_config_read32(u32 *addr, u32 *ret); +void pci_config_write8(u8 *addr, u8 val); +void pci_config_write16(u16 *addr, u16 val); +void pci_config_write32(u32 *addr, u32 val); extern struct pci_ops sun4u_pci_ops; extern struct pci_ops sun4v_pci_ops; diff --git a/arch/sparc/kernel/pci_psycho.c b/arch/sparc/kernel/pci_psycho.c index f4d29e15ce7..c647634ead2 100644 --- a/arch/sparc/kernel/pci_psycho.c +++ b/arch/sparc/kernel/pci_psycho.c @@ -366,8 +366,8 @@ static void pbm_config_busmastering(struct pci_pbm_info *pbm) pci_config_write8(addr, 64); } -static void __devinit psycho_scan_bus(struct pci_pbm_info *pbm, - struct device *parent) +static void psycho_scan_bus(struct pci_pbm_info *pbm, + struct device *parent) { pbm_config_busmastering(pbm); pbm->is_66mhz_capable = 0; @@ -483,15 +483,15 @@ static void psycho_pbm_strbuf_init(struct pci_pbm_info *pbm, #define PSYCHO_MEMSPACE_B 0x180000000UL #define PSYCHO_MEMSPACE_SIZE 0x07fffffffUL -static void __devinit psycho_pbm_init(struct pci_pbm_info *pbm, - struct platform_device *op, int is_pbm_a) +static void psycho_pbm_init(struct pci_pbm_info *pbm, + struct platform_device *op, int is_pbm_a) { psycho_pbm_init_common(pbm, op, "PSYCHO", PBM_CHIP_TYPE_PSYCHO); psycho_pbm_strbuf_init(pbm, is_pbm_a); psycho_scan_bus(pbm, &op->dev); } -static struct pci_pbm_info * __devinit psycho_find_sibling(u32 upa_portid) +static struct pci_pbm_info *psycho_find_sibling(u32 upa_portid) { struct pci_pbm_info *pbm; @@ -504,7 +504,7 @@ static struct pci_pbm_info * __devinit psycho_find_sibling(u32 upa_portid) #define PSYCHO_CONFIGSPACE 0x001000000UL -static int __devinit psycho_probe(struct platform_device *op) +static int psycho_probe(struct platform_device *op) { const struct linux_prom64_registers *pr_regs; struct device_node *dp = op->dev.of_node; diff --git a/arch/sparc/kernel/pci_sabre.c b/arch/sparc/kernel/pci_sabre.c index 3efaa4644d6..6f00d27e8da 100644 --- a/arch/sparc/kernel/pci_sabre.c +++ b/arch/sparc/kernel/pci_sabre.c @@ -403,8 +403,7 @@ static void apb_init(struct pci_bus *sabre_bus) } } -static void __devinit sabre_scan_bus(struct pci_pbm_info *pbm, - struct device *parent) +static void sabre_scan_bus(struct pci_pbm_info *pbm, struct device *parent) { static int once; @@ -443,8 +442,8 @@ static void __devinit sabre_scan_bus(struct pci_pbm_info *pbm, sabre_register_error_handlers(pbm); } -static void __devinit sabre_pbm_init(struct pci_pbm_info *pbm, - struct platform_device *op) +static void sabre_pbm_init(struct pci_pbm_info *pbm, + struct platform_device *op) { psycho_pbm_init_common(pbm, op, "SABRE", PBM_CHIP_TYPE_SABRE); pbm->pci_afsr = pbm->controller_regs + SABRE_PIOAFSR; @@ -454,7 +453,7 @@ static void __devinit sabre_pbm_init(struct pci_pbm_info *pbm, } static const struct of_device_id sabre_match[]; -static int __devinit sabre_probe(struct platform_device *op) +static int sabre_probe(struct platform_device *op) { const struct of_device_id *match; const struct linux_prom64_registers *pr_regs; diff --git a/arch/sparc/kernel/pci_schizo.c b/arch/sparc/kernel/pci_schizo.c index 13d4aa20b5a..8f76f23dac3 100644 --- a/arch/sparc/kernel/pci_schizo.c +++ b/arch/sparc/kernel/pci_schizo.c @@ -1064,8 +1064,7 @@ static void pbm_config_busmastering(struct pci_pbm_info *pbm) pci_config_write8(addr, 64); } -static void __devinit schizo_scan_bus(struct pci_pbm_info *pbm, - struct device *parent) +static void schizo_scan_bus(struct pci_pbm_info *pbm, struct device *parent) { pbm_config_busmastering(pbm); pbm->is_66mhz_capable = @@ -1307,9 +1306,9 @@ static void schizo_pbm_hw_init(struct pci_pbm_info *pbm) } } -static int __devinit schizo_pbm_init(struct pci_pbm_info *pbm, - struct platform_device *op, u32 portid, - int chip_type) +static int schizo_pbm_init(struct pci_pbm_info *pbm, + struct platform_device *op, u32 portid, + int chip_type) { const struct linux_prom64_registers *regs; struct device_node *dp = op->dev.of_node; @@ -1400,8 +1399,7 @@ static inline int portid_compare(u32 x, u32 y, int chip_type) return (x == y); } -static struct pci_pbm_info * __devinit schizo_find_sibling(u32 portid, - int chip_type) +static struct pci_pbm_info *schizo_find_sibling(u32 portid, int chip_type) { struct pci_pbm_info *pbm; @@ -1412,7 +1410,7 @@ static struct pci_pbm_info * __devinit schizo_find_sibling(u32 portid, return NULL; } -static int __devinit __schizo_init(struct platform_device *op, unsigned long chip_type) +static int __schizo_init(struct platform_device *op, unsigned long chip_type) { struct device_node *dp = op->dev.of_node; struct pci_pbm_info *pbm; @@ -1460,7 +1458,7 @@ out_err: } static const struct of_device_id schizo_match[]; -static int __devinit schizo_probe(struct platform_device *op) +static int schizo_probe(struct platform_device *op) { const struct of_device_id *match; diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c index 051b69caeff..d07f6b29aed 100644 --- a/arch/sparc/kernel/pci_sun4v.c +++ b/arch/sparc/kernel/pci_sun4v.c @@ -536,8 +536,7 @@ static struct dma_map_ops sun4v_dma_ops = { .unmap_sg = dma_4v_unmap_sg, }; -static void __devinit pci_sun4v_scan_bus(struct pci_pbm_info *pbm, - struct device *parent) +static void pci_sun4v_scan_bus(struct pci_pbm_info *pbm, struct device *parent) { struct property *prop; struct device_node *dp; @@ -550,8 +549,8 @@ static void __devinit pci_sun4v_scan_bus(struct pci_pbm_info *pbm, /* XXX register error interrupt handlers XXX */ } -static unsigned long __devinit probe_existing_entries(struct pci_pbm_info *pbm, - struct iommu *iommu) +static unsigned long probe_existing_entries(struct pci_pbm_info *pbm, + struct iommu *iommu) { struct iommu_arena *arena = &iommu->arena; unsigned long i, cnt = 0; @@ -578,7 +577,7 @@ static unsigned long __devinit probe_existing_entries(struct pci_pbm_info *pbm, return cnt; } -static int __devinit pci_sun4v_iommu_init(struct pci_pbm_info *pbm) +static int pci_sun4v_iommu_init(struct pci_pbm_info *pbm) { static const u32 vdma_default[] = { 0x80000000, 0x80000000 }; struct iommu *iommu = pbm->iommu; @@ -879,8 +878,8 @@ static void pci_sun4v_msi_init(struct pci_pbm_info *pbm) } #endif /* !(CONFIG_PCI_MSI) */ -static int __devinit pci_sun4v_pbm_init(struct pci_pbm_info *pbm, - struct platform_device *op, u32 devhandle) +static int pci_sun4v_pbm_init(struct pci_pbm_info *pbm, + struct platform_device *op, u32 devhandle) { struct device_node *dp = op->dev.of_node; int err; @@ -919,7 +918,7 @@ static int __devinit pci_sun4v_pbm_init(struct pci_pbm_info *pbm, return 0; } -static int __devinit pci_sun4v_probe(struct platform_device *op) +static int pci_sun4v_probe(struct platform_device *op) { const struct linux_prom64_registers *regs; static int hvapi_negotiated = 0; diff --git a/arch/sparc/kernel/pci_sun4v.h b/arch/sparc/kernel/pci_sun4v.h index 8e9fc3a5b4f..5642212390b 100644 --- a/arch/sparc/kernel/pci_sun4v.h +++ b/arch/sparc/kernel/pci_sun4v.h @@ -6,87 +6,87 @@ #ifndef _PCI_SUN4V_H #define _PCI_SUN4V_H -extern long pci_sun4v_iommu_map(unsigned long devhandle, - unsigned long tsbid, - unsigned long num_ttes, - unsigned long io_attributes, - unsigned long io_page_list_pa); -extern unsigned long pci_sun4v_iommu_demap(unsigned long devhandle, - unsigned long tsbid, - unsigned long num_ttes); -extern unsigned long pci_sun4v_iommu_getmap(unsigned long devhandle, - unsigned long tsbid, - unsigned long *io_attributes, - unsigned long *real_address); -extern unsigned long pci_sun4v_config_get(unsigned long devhandle, - unsigned long pci_device, - unsigned long config_offset, - unsigned long size); -extern int pci_sun4v_config_put(unsigned long devhandle, - unsigned long pci_device, - unsigned long config_offset, - unsigned long size, - unsigned long data); +long pci_sun4v_iommu_map(unsigned long devhandle, + unsigned long tsbid, + unsigned long num_ttes, + unsigned long io_attributes, + unsigned long io_page_list_pa); +unsigned long pci_sun4v_iommu_demap(unsigned long devhandle, + unsigned long tsbid, + unsigned long num_ttes); +unsigned long pci_sun4v_iommu_getmap(unsigned long devhandle, + unsigned long tsbid, + unsigned long *io_attributes, + unsigned long *real_address); +unsigned long pci_sun4v_config_get(unsigned long devhandle, + unsigned long pci_device, + unsigned long config_offset, + unsigned long size); +int pci_sun4v_config_put(unsigned long devhandle, + unsigned long pci_device, + unsigned long config_offset, + unsigned long size, + unsigned long data); -extern unsigned long pci_sun4v_msiq_conf(unsigned long devhandle, +unsigned long pci_sun4v_msiq_conf(unsigned long devhandle, unsigned long msiqid, unsigned long msiq_paddr, unsigned long num_entries); -extern unsigned long pci_sun4v_msiq_info(unsigned long devhandle, - unsigned long msiqid, - unsigned long *msiq_paddr, - unsigned long *num_entries); -extern unsigned long pci_sun4v_msiq_getvalid(unsigned long devhandle, - unsigned long msiqid, - unsigned long *valid); -extern unsigned long pci_sun4v_msiq_setvalid(unsigned long devhandle, - unsigned long msiqid, - unsigned long valid); -extern unsigned long pci_sun4v_msiq_getstate(unsigned long devhandle, - unsigned long msiqid, - unsigned long *state); -extern unsigned long pci_sun4v_msiq_setstate(unsigned long devhandle, - unsigned long msiqid, - unsigned long state); -extern unsigned long pci_sun4v_msiq_gethead(unsigned long devhandle, - unsigned long msiqid, - unsigned long *head); -extern unsigned long pci_sun4v_msiq_sethead(unsigned long devhandle, - unsigned long msiqid, - unsigned long head); -extern unsigned long pci_sun4v_msiq_gettail(unsigned long devhandle, - unsigned long msiqid, - unsigned long *head); -extern unsigned long pci_sun4v_msi_getvalid(unsigned long devhandle, - unsigned long msinum, - unsigned long *valid); -extern unsigned long pci_sun4v_msi_setvalid(unsigned long devhandle, - unsigned long msinum, - unsigned long valid); -extern unsigned long pci_sun4v_msi_getmsiq(unsigned long devhandle, - unsigned long msinum, - unsigned long *msiq); -extern unsigned long pci_sun4v_msi_setmsiq(unsigned long devhandle, - unsigned long msinum, - unsigned long msiq, - unsigned long msitype); -extern unsigned long pci_sun4v_msi_getstate(unsigned long devhandle, - unsigned long msinum, - unsigned long *state); -extern unsigned long pci_sun4v_msi_setstate(unsigned long devhandle, - unsigned long msinum, - unsigned long state); -extern unsigned long pci_sun4v_msg_getmsiq(unsigned long devhandle, - unsigned long msinum, - unsigned long *msiq); -extern unsigned long pci_sun4v_msg_setmsiq(unsigned long devhandle, - unsigned long msinum, - unsigned long msiq); -extern unsigned long pci_sun4v_msg_getvalid(unsigned long devhandle, - unsigned long msinum, - unsigned long *valid); -extern unsigned long pci_sun4v_msg_setvalid(unsigned long devhandle, - unsigned long msinum, - unsigned long valid); +unsigned long pci_sun4v_msiq_info(unsigned long devhandle, + unsigned long msiqid, + unsigned long *msiq_paddr, + unsigned long *num_entries); +unsigned long pci_sun4v_msiq_getvalid(unsigned long devhandle, + unsigned long msiqid, + unsigned long *valid); +unsigned long pci_sun4v_msiq_setvalid(unsigned long devhandle, + unsigned long msiqid, + unsigned long valid); +unsigned long pci_sun4v_msiq_getstate(unsigned long devhandle, + unsigned long msiqid, + unsigned long *state); +unsigned long pci_sun4v_msiq_setstate(unsigned long devhandle, + unsigned long msiqid, + unsigned long state); +unsigned long pci_sun4v_msiq_gethead(unsigned long devhandle, + unsigned long msiqid, + unsigned long *head); +unsigned long pci_sun4v_msiq_sethead(unsigned long devhandle, + unsigned long msiqid, + unsigned long head); +unsigned long pci_sun4v_msiq_gettail(unsigned long devhandle, + unsigned long msiqid, + unsigned long *head); +unsigned long pci_sun4v_msi_getvalid(unsigned long devhandle, + unsigned long msinum, + unsigned long *valid); +unsigned long pci_sun4v_msi_setvalid(unsigned long devhandle, + unsigned long msinum, + unsigned long valid); +unsigned long pci_sun4v_msi_getmsiq(unsigned long devhandle, + unsigned long msinum, + unsigned long *msiq); +unsigned long pci_sun4v_msi_setmsiq(unsigned long devhandle, + unsigned long msinum, + unsigned long msiq, + unsigned long msitype); +unsigned long pci_sun4v_msi_getstate(unsigned long devhandle, + unsigned long msinum, + unsigned long *state); +unsigned long pci_sun4v_msi_setstate(unsigned long devhandle, + unsigned long msinum, + unsigned long state); +unsigned long pci_sun4v_msg_getmsiq(unsigned long devhandle, + unsigned long msinum, + unsigned long *msiq); +unsigned long pci_sun4v_msg_setmsiq(unsigned long devhandle, + unsigned long msinum, + unsigned long msiq); +unsigned long pci_sun4v_msg_getvalid(unsigned long devhandle, + unsigned long msinum, + unsigned long *valid); +unsigned long pci_sun4v_msg_setvalid(unsigned long devhandle, + unsigned long msinum, + unsigned long valid); #endif /* !(_PCI_SUN4V_H) */ diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c index 521fdf1b20e..6cc78c213c0 100644 --- a/arch/sparc/kernel/pcic.c +++ b/arch/sparc/kernel/pcic.c @@ -36,6 +36,7 @@ #include <asm/uaccess.h> #include <asm/irq_regs.h> +#include "kernel.h" #include "irq.h" /* @@ -162,8 +163,8 @@ static int pcic0_up; static struct linux_pcic pcic0; void __iomem *pcic_regs; -volatile int pcic_speculative; -volatile int pcic_trapped; +static volatile int pcic_speculative; +static volatile int pcic_trapped; /* forward */ unsigned int pcic_build_device_irq(struct platform_device *op, @@ -329,7 +330,7 @@ int __init pcic_probe(void) pcic->pcic_res_cfg_addr.name = "pcic_cfg_addr"; if ((pcic->pcic_config_space_addr = - ioremap(regs[2].phys_addr, regs[2].reg_size * 2)) == 0) { + ioremap(regs[2].phys_addr, regs[2].reg_size * 2)) == NULL) { prom_printf("PCIC: Error, cannot map " "PCI Configuration Space Address.\n"); prom_halt(); @@ -341,7 +342,7 @@ int __init pcic_probe(void) */ pcic->pcic_res_cfg_data.name = "pcic_cfg_data"; if ((pcic->pcic_config_space_data = - ioremap(regs[3].phys_addr, regs[3].reg_size * 2)) == 0) { + ioremap(regs[3].phys_addr, regs[3].reg_size * 2)) == NULL) { prom_printf("PCIC: Error, cannot map " "PCI Configuration Space Data.\n"); prom_halt(); @@ -353,7 +354,6 @@ int __init pcic_probe(void) strcpy(pbm->prom_name, namebuf); { - extern volatile int t_nmi[4]; extern int pcic_nmi_trap_patch[4]; t_nmi[0] = pcic_nmi_trap_patch[0]; @@ -439,8 +439,7 @@ int pcic_present(void) return pcic0_up; } -static int __devinit pdev_to_pnode(struct linux_pbm_info *pbm, - struct pci_dev *pdev) +static int pdev_to_pnode(struct linux_pbm_info *pbm, struct pci_dev *pdev) { struct linux_prom_pci_registers regs[PROMREG_MAX]; int err; @@ -537,7 +536,7 @@ pcic_fill_irq(struct linux_pcic *pcic, struct pci_dev *dev, int node) prom_getstring(node, "name", namebuf, sizeof(namebuf)); } - if ((p = pcic->pcic_imap) == 0) { + if ((p = pcic->pcic_imap) == NULL) { dev->irq = 0; return; } @@ -595,7 +594,7 @@ pcic_fill_irq(struct linux_pcic *pcic, struct pci_dev *dev, int node) /* * Normally called from {do_}pci_scan_bus... */ -void __devinit pcibios_fixup_bus(struct pci_bus *bus) +void pcibios_fixup_bus(struct pci_bus *bus) { struct pci_dev *dev; int i, has_io, has_mem; @@ -671,30 +670,6 @@ void __devinit pcibios_fixup_bus(struct pci_bus *bus) } } -/* - * pcic_pin_to_irq() is exported to bus probing code - */ -unsigned int -pcic_pin_to_irq(unsigned int pin, const char *name) -{ - struct linux_pcic *pcic = &pcic0; - unsigned int irq; - unsigned int ivec; - - if (pin < 4) { - ivec = readw(pcic->pcic_regs+PCI_INT_SELECT_LO); - irq = ivec >> (pin << 2) & 0xF; - } else if (pin < 8) { - ivec = readw(pcic->pcic_regs+PCI_INT_SELECT_HI); - irq = ivec >> ((pin-4) << 2) & 0xF; - } else { /* Corrupted map */ - printk("PCIC: BAD PIN %d FOR %s\n", pin, name); - for (;;) {} /* XXX Cannot panic properly in case of PROLL */ - } -/* P3 */ /* printk("PCIC: dev %s pin %d ivec 0x%x irq %x\n", name, pin, ivec, irq); */ - return irq; -} - /* Makes compiler happy */ static volatile int pcic_timer_dummy; @@ -784,7 +759,7 @@ int pcibios_enable_device(struct pci_dev *pdev, int mask) void pcic_nmi(unsigned int pend, struct pt_regs *regs) { - pend = flip_dword(pend); + pend = swab32(pend); if (!pcic_speculative || (pend & PCI_SYS_INT_PENDING_PIO) == 0) { /* @@ -876,82 +851,4 @@ void __init sun4m_pci_init_IRQ(void) sparc_config.load_profile_irq = pcic_load_profile_irq; } -/* - * This probably belongs here rather than ioport.c because - * we do not want this crud linked into SBus kernels. - * Also, think for a moment about likes of floppy.c that - * include architecture specific parts. They may want to redefine ins/outs. - * - * We do not use horrible macros here because we want to - * advance pointer by sizeof(size). - */ -void outsb(unsigned long addr, const void *src, unsigned long count) -{ - while (count) { - count -= 1; - outb(*(const char *)src, addr); - src += 1; - /* addr += 1; */ - } -} -EXPORT_SYMBOL(outsb); - -void outsw(unsigned long addr, const void *src, unsigned long count) -{ - while (count) { - count -= 2; - outw(*(const short *)src, addr); - src += 2; - /* addr += 2; */ - } -} -EXPORT_SYMBOL(outsw); - -void outsl(unsigned long addr, const void *src, unsigned long count) -{ - while (count) { - count -= 4; - outl(*(const long *)src, addr); - src += 4; - /* addr += 4; */ - } -} -EXPORT_SYMBOL(outsl); - -void insb(unsigned long addr, void *dst, unsigned long count) -{ - while (count) { - count -= 1; - *(unsigned char *)dst = inb(addr); - dst += 1; - /* addr += 1; */ - } -} -EXPORT_SYMBOL(insb); - -void insw(unsigned long addr, void *dst, unsigned long count) -{ - while (count) { - count -= 2; - *(unsigned short *)dst = inw(addr); - dst += 2; - /* addr += 2; */ - } -} -EXPORT_SYMBOL(insw); - -void insl(unsigned long addr, void *dst, unsigned long count) -{ - while (count) { - count -= 4; - /* - * XXX I am sure we are in for an unaligned trap here. - */ - *(unsigned long *)dst = inl(addr); - dst += 4; - /* addr += 4; */ - } -} -EXPORT_SYMBOL(insl); - subsys_initcall(pcic_init); diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c index 885a8af7406..8efd33753ad 100644 --- a/arch/sparc/kernel/perf_event.c +++ b/arch/sparc/kernel/perf_event.c @@ -110,7 +110,7 @@ struct cpu_hw_events { unsigned int group_flag; }; -DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events) = { .enabled = 1, }; +static DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events) = { .enabled = 1, }; /* An event map describes the characteristics of a performance * counter event. In particular it gives the encoding as well as @@ -1153,7 +1153,7 @@ static void perf_stop_nmi_watchdog(void *unused) cpuc->pcr[i] = pcr_ops->read_pcr(i); } -void perf_event_grab_pmc(void) +static void perf_event_grab_pmc(void) { if (atomic_inc_not_zero(&active_events)) return; @@ -1169,7 +1169,7 @@ void perf_event_grab_pmc(void) mutex_unlock(&pmc_grab_mutex); } -void perf_event_release_pmc(void) +static void perf_event_release_pmc(void) { if (atomic_dec_and_mutex_lock(&active_events, &pmc_grab_mutex)) { if (atomic_read(&nmi_active) == 0) @@ -1669,7 +1669,7 @@ static bool __init supported_pmu(void) return false; } -int __init init_hw_perf_events(void) +static int __init init_hw_perf_events(void) { pr_info("Performance events: "); @@ -1742,10 +1742,11 @@ static void perf_callchain_user_64(struct perf_callchain_entry *entry, ufp = regs->u_regs[UREG_I6] + STACK_BIAS; do { - struct sparc_stackf *usf, sf; + struct sparc_stackf __user *usf; + struct sparc_stackf sf; unsigned long pc; - usf = (struct sparc_stackf *) ufp; + usf = (struct sparc_stackf __user *)ufp; if (__copy_from_user_inatomic(&sf, usf, sizeof(sf))) break; @@ -1762,15 +1763,27 @@ static void perf_callchain_user_32(struct perf_callchain_entry *entry, ufp = regs->u_regs[UREG_I6] & 0xffffffffUL; do { - struct sparc_stackf32 *usf, sf; unsigned long pc; - usf = (struct sparc_stackf32 *) ufp; - if (__copy_from_user_inatomic(&sf, usf, sizeof(sf))) - break; + if (thread32_stack_is_64bit(ufp)) { + struct sparc_stackf __user *usf; + struct sparc_stackf sf; - pc = sf.callers_pc; - ufp = (unsigned long)sf.fp; + ufp += STACK_BIAS; + usf = (struct sparc_stackf __user *)ufp; + if (__copy_from_user_inatomic(&sf, usf, sizeof(sf))) + break; + pc = sf.callers_pc & 0xffffffff; + ufp = ((unsigned long) sf.fp) & 0xffffffff; + } else { + struct sparc_stackf32 __user *usf; + struct sparc_stackf32 sf; + usf = (struct sparc_stackf32 __user *)ufp; + if (__copy_from_user_inatomic(&sf, usf, sizeof(sf))) + break; + pc = sf.callers_pc; + ufp = (unsigned long)sf.fp; + } perf_callchain_store(entry, pc); } while (entry->nr < PERF_MAX_STACK_DEPTH); } diff --git a/arch/sparc/kernel/pmc.c b/arch/sparc/kernel/pmc.c index 0e3202239ff..8b7297faca7 100644 --- a/arch/sparc/kernel/pmc.c +++ b/arch/sparc/kernel/pmc.c @@ -17,6 +17,7 @@ #include <asm/oplib.h> #include <asm/uaccess.h> #include <asm/auxio.h> +#include <asm/processor.h> /* Debug * @@ -52,7 +53,7 @@ static void pmc_swift_idle(void) #endif } -static int __devinit pmc_probe(struct platform_device *op) +static int pmc_probe(struct platform_device *op) { regs = of_ioremap(&op->resource[0], 0, resource_size(&op->resource[0]), PMC_OBPNAME); @@ -63,7 +64,7 @@ static int __devinit pmc_probe(struct platform_device *op) #ifndef PMC_NO_IDLE /* Assign power management IDLE handler */ - pm_idle = pmc_swift_idle; + sparc_idle = pmc_swift_idle; #endif printk(KERN_INFO "%s: power management initialized\n", PMC_DEVNAME); diff --git a/arch/sparc/kernel/power.c b/arch/sparc/kernel/power.c index 0d39075063b..4cb23c41553 100644 --- a/arch/sparc/kernel/power.c +++ b/arch/sparc/kernel/power.c @@ -23,7 +23,7 @@ static irqreturn_t power_handler(int irq, void *dev_id) return IRQ_HANDLED; } -static int __devinit has_button_interrupt(unsigned int irq, struct device_node *dp) +static int has_button_interrupt(unsigned int irq, struct device_node *dp) { if (irq == 0xffffffff) return 0; @@ -33,7 +33,7 @@ static int __devinit has_button_interrupt(unsigned int irq, struct device_node * return 1; } -static int __devinit power_probe(struct platform_device *op) +static int power_probe(struct platform_device *op) { struct resource *res = &op->resource[0]; unsigned int irq = op->archdata.irqs[0]; diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c index 487bffb36f5..50e7b626afe 100644 --- a/arch/sparc/kernel/process_32.c +++ b/arch/sparc/kernel/process_32.c @@ -10,6 +10,7 @@ #include <stdarg.h> +#include <linux/elfcore.h> #include <linux/errno.h> #include <linux/module.h> #include <linux/sched.h> @@ -22,8 +23,8 @@ #include <linux/reboot.h> #include <linux/delay.h> #include <linux/pm.h> -#include <linux/init.h> #include <linux/slab.h> +#include <linux/cpu.h> #include <asm/auxio.h> #include <asm/oplib.h> @@ -39,12 +40,13 @@ #include <asm/unistd.h> #include <asm/setup.h> +#include "kernel.h" + /* * Power management idle function * Set in pm platform drivers (apc.c and pmc.c) */ -void (*pm_idle)(void); -EXPORT_SYMBOL(pm_idle); +void (*sparc_idle)(void); /* * Power-off handler instantiation for pm.h compliance @@ -65,23 +67,12 @@ extern void fpsave(unsigned long *, unsigned long *, void *, unsigned long *); struct task_struct *last_task_used_math = NULL; struct thread_info *current_set[NR_CPUS]; -/* - * the idle loop on a Sparc... ;) - */ -void cpu_idle(void) +/* Idle loop support. */ +void arch_cpu_idle(void) { - set_thread_flag(TIF_POLLING_NRFLAG); - - /* endless idle loop with no priority at all */ - for (;;) { - while (!need_resched()) { - if (pm_idle) - (*pm_idle)(); - else - cpu_relax(); - } - schedule_preempt_disabled(); - } + if (sparc_idle) + (*sparc_idle)(); + local_irq_enable(); } /* XXX cli/sti -> local_irq_xxx here, check this works once SMP is fixed. */ @@ -115,8 +106,12 @@ void machine_restart(char * cmd) void machine_power_off(void) { if (auxio_power_register && - (strcmp(of_console_device->type, "serial") || scons_pwroff)) - *auxio_power_register |= AUXIO_POWER_OFF; + (strcmp(of_console_device->type, "serial") || scons_pwroff)) { + u8 power_register = sbus_readb(auxio_power_register); + power_register |= AUXIO_POWER_OFF; + sbus_writeb(power_register, auxio_power_register); + } + machine_halt(); } @@ -124,6 +119,8 @@ void show_regs(struct pt_regs *r) { struct reg_window32 *rw = (struct reg_window32 *) r->u_regs[14]; + show_regs_print_info(KERN_DEFAULT); + printk("PSR: %08lx PC: %08lx NPC: %08lx Y: %08lx %s\n", r->psr, r->pc, r->npc, r->y, print_tainted()); printk("PC: <%pS>\n", (void *) r->pc); @@ -154,11 +151,13 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp) struct reg_window32 *rw; int count = 0; - if (tsk != NULL) - task_base = (unsigned long) task_stack_page(tsk); - else - task_base = (unsigned long) current_thread_info(); + if (!tsk) + tsk = current; + + if (tsk == current && !_ksp) + __asm__ __volatile__("mov %%fp, %0" : "=r" (_ksp)); + task_base = (unsigned long) task_stack_page(tsk); fp = (unsigned long) _ksp; do { /* Bogus frame pointer? */ @@ -174,17 +173,6 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp) printk("\n"); } -void dump_stack(void) -{ - unsigned long *ksp; - - __asm__ __volatile__("mov %%fp, %0" - : "=r" (ksp)); - show_stack(current, ksp); -} - -EXPORT_SYMBOL(dump_stack); - /* * Note: sparc64 has a pretty intricated thread_saved_pc, check it out. */ @@ -286,8 +274,7 @@ asmlinkage int sparc_do_fork(unsigned long clone_flags, parent_tid_ptr = regs->u_regs[UREG_I2]; child_tid_ptr = regs->u_regs[UREG_I4]; - ret = do_fork(clone_flags, stack_start, - regs, stack_size, + ret = do_fork(clone_flags, stack_start, stack_size, (int __user *) parent_tid_ptr, (int __user *) child_tid_ptr); @@ -316,13 +303,13 @@ asmlinkage int sparc_do_fork(unsigned long clone_flags, * XXX See comment above sys_vfork in sparc64. todo. */ extern void ret_from_fork(void); +extern void ret_from_kernel_thread(void); int copy_thread(unsigned long clone_flags, unsigned long sp, - unsigned long unused, - struct task_struct *p, struct pt_regs *regs) + unsigned long arg, struct task_struct *p) { struct thread_info *ti = task_thread_info(p); - struct pt_regs *childregs; + struct pt_regs *childregs, *regs = current_pt_regs(); char *new_stack; #ifndef CONFIG_SMP @@ -336,16 +323,13 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, } /* - * p->thread_info new_stack childregs - * ! ! ! {if(PSR_PS) } - * V V (stk.fr.) V (pt_regs) { (stk.fr.) } - * +----- - - - - - ------+===========+============={+==========}+ + * p->thread_info new_stack childregs stack bottom + * ! ! ! ! + * V V (stk.fr.) V (pt_regs) V + * +----- - - - - - ------+===========+=============+ */ new_stack = task_stack_page(p) + THREAD_SIZE; - if (regs->psr & PSR_PS) - new_stack -= STACKFRAME_SZ; new_stack -= STACKFRAME_SZ + TRACEREG_SZ; - memcpy(new_stack, (char *)regs - STACKFRAME_SZ, STACKFRAME_SZ + TRACEREG_SZ); childregs = (struct pt_regs *) (new_stack + STACKFRAME_SZ); /* @@ -356,55 +340,58 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, * Thus, kpsr|=PSR_PIL. */ ti->ksp = (unsigned long) new_stack; + p->thread.kregs = childregs; + + if (unlikely(p->flags & PF_KTHREAD)) { + extern int nwindows; + unsigned long psr; + memset(new_stack, 0, STACKFRAME_SZ + TRACEREG_SZ); + p->thread.flags |= SPARC_FLAG_KTHREAD; + p->thread.current_ds = KERNEL_DS; + ti->kpc = (((unsigned long) ret_from_kernel_thread) - 0x8); + childregs->u_regs[UREG_G1] = sp; /* function */ + childregs->u_regs[UREG_G2] = arg; + psr = childregs->psr = get_psr(); + ti->kpsr = psr | PSR_PIL; + ti->kwim = 1 << (((psr & PSR_CWP) + 1) % nwindows); + return 0; + } + memcpy(new_stack, (char *)regs - STACKFRAME_SZ, STACKFRAME_SZ + TRACEREG_SZ); + childregs->u_regs[UREG_FP] = sp; + p->thread.flags &= ~SPARC_FLAG_KTHREAD; + p->thread.current_ds = USER_DS; ti->kpc = (((unsigned long) ret_from_fork) - 0x8); ti->kpsr = current->thread.fork_kpsr | PSR_PIL; ti->kwim = current->thread.fork_kwim; - if(regs->psr & PSR_PS) { - extern struct pt_regs fake_swapper_regs; + if (sp != regs->u_regs[UREG_FP]) { + struct sparc_stackf __user *childstack; + struct sparc_stackf __user *parentstack; - p->thread.kregs = &fake_swapper_regs; - new_stack += STACKFRAME_SZ + TRACEREG_SZ; - childregs->u_regs[UREG_FP] = (unsigned long) new_stack; - p->thread.flags |= SPARC_FLAG_KTHREAD; - p->thread.current_ds = KERNEL_DS; - memcpy(new_stack, (void *)regs->u_regs[UREG_FP], STACKFRAME_SZ); - childregs->u_regs[UREG_G6] = (unsigned long) ti; - } else { - p->thread.kregs = childregs; - childregs->u_regs[UREG_FP] = sp; - p->thread.flags &= ~SPARC_FLAG_KTHREAD; - p->thread.current_ds = USER_DS; - - if (sp != regs->u_regs[UREG_FP]) { - struct sparc_stackf __user *childstack; - struct sparc_stackf __user *parentstack; - - /* - * This is a clone() call with supplied user stack. - * Set some valid stack frames to give to the child. - */ - childstack = (struct sparc_stackf __user *) - (sp & ~0xfUL); - parentstack = (struct sparc_stackf __user *) - regs->u_regs[UREG_FP]; + /* + * This is a clone() call with supplied user stack. + * Set some valid stack frames to give to the child. + */ + childstack = (struct sparc_stackf __user *) + (sp & ~0xfUL); + parentstack = (struct sparc_stackf __user *) + regs->u_regs[UREG_FP]; #if 0 - printk("clone: parent stack:\n"); - show_stackframe(parentstack); + printk("clone: parent stack:\n"); + show_stackframe(parentstack); #endif - childstack = clone_stackframe(childstack, parentstack); - if (!childstack) - return -EFAULT; + childstack = clone_stackframe(childstack, parentstack); + if (!childstack) + return -EFAULT; #if 0 - printk("clone: child stack:\n"); - show_stackframe(childstack); + printk("clone: child stack:\n"); + show_stackframe(childstack); #endif - childregs->u_regs[UREG_FP] = (unsigned long)childstack; - } + childregs->u_regs[UREG_FP] = (unsigned long)childstack; } #ifdef CONFIG_SMP @@ -475,69 +462,6 @@ int dump_fpu (struct pt_regs * regs, elf_fpregset_t * fpregs) return 1; } -/* - * sparc_execve() executes a new program after the asm stub has set - * things up for us. This should basically do what I want it to. - */ -asmlinkage int sparc_execve(struct pt_regs *regs) -{ - int error, base = 0; - struct filename *filename; - - /* Check for indirect call. */ - if(regs->u_regs[UREG_G1] == 0) - base = 1; - - filename = getname((char __user *)regs->u_regs[base + UREG_I0]); - error = PTR_ERR(filename); - if(IS_ERR(filename)) - goto out; - error = do_execve(filename->name, - (const char __user *const __user *) - regs->u_regs[base + UREG_I1], - (const char __user *const __user *) - regs->u_regs[base + UREG_I2], - regs); - putname(filename); -out: - return error; -} - -/* - * This is the mechanism for creating a new kernel thread. - * - * NOTE! Only a kernel-only process(ie the swapper or direct descendants - * who haven't done an "execve()") should use this: it will work within - * a system call from a "real" process, but the process memory space will - * not be freed until both the parent and the child have exited. - */ -pid_t kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) -{ - long retval; - - __asm__ __volatile__("mov %4, %%g2\n\t" /* Set aside fn ptr... */ - "mov %5, %%g3\n\t" /* and arg. */ - "mov %1, %%g1\n\t" - "mov %2, %%o0\n\t" /* Clone flags. */ - "mov 0, %%o1\n\t" /* usp arg == 0 */ - "t 0x10\n\t" /* Linux/Sparc clone(). */ - "cmp %%o1, 0\n\t" - "be 1f\n\t" /* The parent, just return. */ - " nop\n\t" /* Delay slot. */ - "jmpl %%g2, %%o7\n\t" /* Call the function. */ - " mov %%g3, %%o0\n\t" /* Get back the arg in delay. */ - "mov %3, %%g1\n\t" - "t 0x10\n\t" /* Linux/Sparc exit(). */ - /* Notreached by child. */ - "1: mov %%o0, %0\n\t" : - "=r" (retval) : - "i" (__NR_clone), "r" (flags | CLONE_VM | CLONE_UNTRACED), - "i" (__NR_exit), "r" (fn), "r" (arg) : - "g1", "g2", "g3", "o0", "o1", "memory", "cc"); - return retval; -} -EXPORT_SYMBOL(kernel_thread); - unsigned long get_wchan(struct task_struct *task) { unsigned long pc, fp, bias = 0; diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c index d778248ef3f..027e0998619 100644 --- a/arch/sparc/kernel/process_64.c +++ b/arch/sparc/kernel/process_64.c @@ -31,6 +31,7 @@ #include <linux/elfcore.h> #include <linux/sysrq.h> #include <linux/nmi.h> +#include <linux/context_tracking.h> #include <asm/uaccess.h> #include <asm/page.h> @@ -52,20 +53,20 @@ #include "kstack.h" -static void sparc64_yield(int cpu) +/* Idle loop support on sparc64. */ +void arch_cpu_idle(void) { if (tlb_type != hypervisor) { touch_nmi_watchdog(); - return; - } - - clear_thread_flag(TIF_POLLING_NRFLAG); - smp_mb__after_clear_bit(); - - while (!need_resched() && !cpu_is_offline(cpu)) { + local_irq_enable(); + } else { unsigned long pstate; - /* Disable interrupts. */ + local_irq_enable(); + + /* The sun4v sleeping code requires that we have PSTATE.IE cleared over + * the cpu sleep hypervisor call. + */ __asm__ __volatile__( "rdpr %%pstate, %0\n\t" "andn %0, %1, %0\n\t" @@ -73,7 +74,7 @@ static void sparc64_yield(int cpu) : "=&r" (pstate) : "i" (PSTATE_IE)); - if (!need_resched() && !cpu_is_offline(cpu)) + if (!need_resched() && !cpu_is_offline(smp_processor_id())) sun4v_cpu_yield(); /* Re-enable interrupts. */ @@ -84,36 +85,15 @@ static void sparc64_yield(int cpu) : "=&r" (pstate) : "i" (PSTATE_IE)); } - - set_thread_flag(TIF_POLLING_NRFLAG); } -/* The idle loop on sparc64. */ -void cpu_idle(void) -{ - int cpu = smp_processor_id(); - - set_thread_flag(TIF_POLLING_NRFLAG); - - while(1) { - tick_nohz_idle_enter(); - rcu_idle_enter(); - - while (!need_resched() && !cpu_is_offline(cpu)) - sparc64_yield(cpu); - - rcu_idle_exit(); - tick_nohz_idle_exit(); - #ifdef CONFIG_HOTPLUG_CPU - if (cpu_is_offline(cpu)) { - sched_preempt_enable_no_resched(); - cpu_play_dead(); - } -#endif - schedule_preempt_disabled(); - } +void arch_cpu_idle_dead(void) +{ + sched_preempt_enable_no_resched(); + cpu_play_dead(); } +#endif #ifdef CONFIG_COMPAT static void show_regwindow32(struct pt_regs *regs) @@ -186,6 +166,8 @@ static void show_regwindow(struct pt_regs *regs) void show_regs(struct pt_regs *regs) { + show_regs_print_info(KERN_DEFAULT); + printk("TSTATE: %016lx TPC: %016lx TNPC: %016lx Y: %08x %s\n", regs->tstate, regs->tpc, regs->tnpc, regs->y, print_tainted()); printk("TPC: <%pS>\n", (void *) regs->tpc); @@ -257,7 +239,7 @@ static void __global_reg_poll(struct global_reg_snapshot *gp) } } -void arch_trigger_all_cpu_backtrace(void) +void arch_trigger_all_cpu_backtrace(bool include_self) { struct thread_info *tp = current_thread_info(); struct pt_regs *regs = get_irq_regs(); @@ -269,16 +251,22 @@ void arch_trigger_all_cpu_backtrace(void) spin_lock_irqsave(&global_cpu_snapshot_lock, flags); - memset(global_cpu_snapshot, 0, sizeof(global_cpu_snapshot)); - this_cpu = raw_smp_processor_id(); - __global_reg_self(tp, regs, this_cpu); + memset(global_cpu_snapshot, 0, sizeof(global_cpu_snapshot)); + + if (include_self) + __global_reg_self(tp, regs, this_cpu); smp_fetch_global_regs(); for_each_online_cpu(cpu) { - struct global_reg_snapshot *gp = &global_cpu_snapshot[cpu].reg; + struct global_reg_snapshot *gp; + + if (!include_self && cpu == this_cpu) + continue; + + gp = &global_cpu_snapshot[cpu].reg; __global_reg_poll(gp); @@ -310,12 +298,12 @@ void arch_trigger_all_cpu_backtrace(void) static void sysrq_handle_globreg(int key) { - arch_trigger_all_cpu_backtrace(); + arch_trigger_all_cpu_backtrace(true); } static struct sysrq_key_op sparc_globalreg_op = { .handler = sysrq_handle_globreg, - .help_msg = "global-regs(Y)", + .help_msg = "global-regs(y)", .action_msg = "Show Global CPU Regs", }; @@ -385,7 +373,7 @@ static void sysrq_handle_globpmu(int key) static struct sysrq_key_op sparc_globalpmu_op = { .handler = sysrq_handle_globpmu, - .help_msg = "global-pmu(X)", + .help_msg = "global-pmu(x)", .action_msg = "Show Global PMU Regs", }; @@ -452,13 +440,16 @@ void flush_thread(void) /* It's a bit more tricky when 64-bit tasks are involved... */ static unsigned long clone_stackframe(unsigned long csp, unsigned long psp) { + bool stack_64bit = test_thread_64bit_stack(psp); unsigned long fp, distance, rval; - if (!(test_thread_flag(TIF_32BIT))) { + if (stack_64bit) { csp += STACK_BIAS; psp += STACK_BIAS; __get_user(fp, &(((struct reg_window __user *)psp)->ins[6])); fp += STACK_BIAS; + if (test_thread_flag(TIF_32BIT)) + fp &= 0xffffffff; } else __get_user(fp, &(((struct reg_window32 __user *)psp)->ins[6])); @@ -472,7 +463,7 @@ static unsigned long clone_stackframe(unsigned long csp, unsigned long psp) rval = (csp - distance); if (copy_in_user((void __user *) rval, (void __user *) psp, distance)) rval = 0; - else if (test_thread_flag(TIF_32BIT)) { + else if (!stack_64bit) { if (put_user(((u32)csp), &(((struct reg_window32 __user *)rval)->ins[6]))) rval = 0; @@ -507,18 +498,18 @@ void synchronize_user_stack(void) flush_user_windows(); if ((window = get_thread_wsaved()) != 0) { - int winsize = sizeof(struct reg_window); - int bias = 0; - - if (test_thread_flag(TIF_32BIT)) - winsize = sizeof(struct reg_window32); - else - bias = STACK_BIAS; - window -= 1; do { - unsigned long sp = (t->rwbuf_stkptrs[window] + bias); struct reg_window *rwin = &t->reg_window[window]; + int winsize = sizeof(struct reg_window); + unsigned long sp; + + sp = t->rwbuf_stkptrs[window]; + + if (test_thread_64bit_stack(sp)) + sp += STACK_BIAS; + else + winsize = sizeof(struct reg_window32); if (!copy_to_user((char __user *)sp, rwin, winsize)) { shift_window_buffer(window, get_thread_wsaved() - 1, t); @@ -544,13 +535,6 @@ void fault_in_user_windows(void) { struct thread_info *t = current_thread_info(); unsigned long window; - int winsize = sizeof(struct reg_window); - int bias = 0; - - if (test_thread_flag(TIF_32BIT)) - winsize = sizeof(struct reg_window32); - else - bias = STACK_BIAS; flush_user_windows(); window = get_thread_wsaved(); @@ -558,8 +542,16 @@ void fault_in_user_windows(void) if (likely(window != 0)) { window -= 1; do { - unsigned long sp = (t->rwbuf_stkptrs[window] + bias); struct reg_window *rwin = &t->reg_window[window]; + int winsize = sizeof(struct reg_window); + unsigned long sp; + + sp = t->rwbuf_stkptrs[window]; + + if (test_thread_64bit_stack(sp)) + sp += STACK_BIAS; + else + winsize = sizeof(struct reg_window32); if (unlikely(sp & 0x7UL)) stack_unaligned(sp); @@ -574,6 +566,7 @@ void fault_in_user_windows(void) barf: set_thread_wsaved(window + 1); + user_exit(); do_exit(SIGILL); } @@ -597,8 +590,7 @@ asmlinkage long sparc_do_fork(unsigned long clone_flags, child_tid_ptr = (int __user *) regs->u_regs[UREG_I4]; } - ret = do_fork(clone_flags, stack_start, - regs, stack_size, + ret = do_fork(clone_flags, stack_start, stack_size, parent_tid_ptr, child_tid_ptr); /* If we get an error and potentially restart the system @@ -618,64 +610,55 @@ asmlinkage long sparc_do_fork(unsigned long clone_flags, * Child --> %o0 == parents pid, %o1 == 1 */ int copy_thread(unsigned long clone_flags, unsigned long sp, - unsigned long unused, - struct task_struct *p, struct pt_regs *regs) + unsigned long arg, struct task_struct *p) { struct thread_info *t = task_thread_info(p); + struct pt_regs *regs = current_pt_regs(); struct sparc_stackf *parent_sf; unsigned long child_stack_sz; char *child_trap_frame; - int kernel_thread; - - kernel_thread = (regs->tstate & TSTATE_PRIV) ? 1 : 0; - parent_sf = ((struct sparc_stackf *) regs) - 1; /* Calculate offset to stack_frame & pt_regs */ - child_stack_sz = ((STACKFRAME_SZ + TRACEREG_SZ) + - (kernel_thread ? STACKFRAME_SZ : 0)); + child_stack_sz = (STACKFRAME_SZ + TRACEREG_SZ); child_trap_frame = (task_stack_page(p) + (THREAD_SIZE - child_stack_sz)); - memcpy(child_trap_frame, parent_sf, child_stack_sz); - t->flags = (t->flags & ~((0xffUL << TI_FLAG_CWP_SHIFT) | - (0xffUL << TI_FLAG_CURRENT_DS_SHIFT))) | - (((regs->tstate + 1) & TSTATE_CWP) << TI_FLAG_CWP_SHIFT); t->new_child = 1; t->ksp = ((unsigned long) child_trap_frame) - STACK_BIAS; t->kregs = (struct pt_regs *) (child_trap_frame + sizeof(struct sparc_stackf)); t->fpsaved[0] = 0; - if (kernel_thread) { - struct sparc_stackf *child_sf = (struct sparc_stackf *) - (child_trap_frame + (STACKFRAME_SZ + TRACEREG_SZ)); - - /* Zero terminate the stack backtrace. */ - child_sf->fp = NULL; - t->kregs->u_regs[UREG_FP] = - ((unsigned long) child_sf) - STACK_BIAS; + if (unlikely(p->flags & PF_KTHREAD)) { + memset(child_trap_frame, 0, child_stack_sz); + __thread_flag_byte_ptr(t)[TI_FLAG_BYTE_CWP] = + (current_pt_regs()->tstate + 1) & TSTATE_CWP; + t->current_ds = ASI_P; + t->kregs->u_regs[UREG_G1] = sp; /* function */ + t->kregs->u_regs[UREG_G2] = arg; + return 0; + } - t->flags |= ((long)ASI_P << TI_FLAG_CURRENT_DS_SHIFT); - t->kregs->u_regs[UREG_G6] = (unsigned long) t; - t->kregs->u_regs[UREG_G4] = (unsigned long) t->task; - } else { - if (t->flags & _TIF_32BIT) { - sp &= 0x00000000ffffffffUL; - regs->u_regs[UREG_FP] &= 0x00000000ffffffffUL; - } - t->kregs->u_regs[UREG_FP] = sp; - t->flags |= ((long)ASI_AIUS << TI_FLAG_CURRENT_DS_SHIFT); - if (sp != regs->u_regs[UREG_FP]) { - unsigned long csp; - - csp = clone_stackframe(sp, regs->u_regs[UREG_FP]); - if (!csp) - return -EFAULT; - t->kregs->u_regs[UREG_FP] = csp; - } - if (t->utraps) - t->utraps[0]++; + parent_sf = ((struct sparc_stackf *) regs) - 1; + memcpy(child_trap_frame, parent_sf, child_stack_sz); + if (t->flags & _TIF_32BIT) { + sp &= 0x00000000ffffffffUL; + regs->u_regs[UREG_FP] &= 0x00000000ffffffffUL; } + t->kregs->u_regs[UREG_FP] = sp; + __thread_flag_byte_ptr(t)[TI_FLAG_BYTE_CWP] = + (regs->tstate + 1) & TSTATE_CWP; + t->current_ds = ASI_AIUS; + if (sp != regs->u_regs[UREG_FP]) { + unsigned long csp; + + csp = clone_stackframe(sp, regs->u_regs[UREG_FP]); + if (!csp) + return -EFAULT; + t->kregs->u_regs[UREG_FP] = csp; + } + if (t->utraps) + t->utraps[0]++; /* Set the return value for the child. */ t->kregs->u_regs[UREG_I0] = current->pid; @@ -690,45 +673,6 @@ int copy_thread(unsigned long clone_flags, unsigned long sp, return 0; } -/* - * This is the mechanism for creating a new kernel thread. - * - * NOTE! Only a kernel-only process(ie the swapper or direct descendants - * who haven't done an "execve()") should use this: it will work within - * a system call from a "real" process, but the process memory space will - * not be freed until both the parent and the child have exited. - */ -pid_t kernel_thread(int (*fn)(void *), void * arg, unsigned long flags) -{ - long retval; - - /* If the parent runs before fn(arg) is called by the child, - * the input registers of this function can be clobbered. - * So we stash 'fn' and 'arg' into global registers which - * will not be modified by the parent. - */ - __asm__ __volatile__("mov %4, %%g2\n\t" /* Save FN into global */ - "mov %5, %%g3\n\t" /* Save ARG into global */ - "mov %1, %%g1\n\t" /* Clone syscall nr. */ - "mov %2, %%o0\n\t" /* Clone flags. */ - "mov 0, %%o1\n\t" /* usp arg == 0 */ - "t 0x6d\n\t" /* Linux/Sparc clone(). */ - "brz,a,pn %%o1, 1f\n\t" /* Parent, just return. */ - " mov %%o0, %0\n\t" - "jmpl %%g2, %%o7\n\t" /* Call the function. */ - " mov %%g3, %%o0\n\t" /* Set arg in delay. */ - "mov %3, %%g1\n\t" - "t 0x6d\n\t" /* Linux/Sparc exit(). */ - /* Notreached by child. */ - "1:" : - "=r" (retval) : - "i" (__NR_clone), "r" (flags | CLONE_VM | CLONE_UNTRACED), - "i" (__NR_exit), "r" (fn), "r" (arg) : - "g1", "g2", "g3", "o0", "o1", "memory", "cc"); - return retval; -} -EXPORT_SYMBOL(kernel_thread); - typedef struct { union { unsigned int pr_regs[32]; @@ -795,41 +739,6 @@ int dump_fpu (struct pt_regs * regs, elf_fpregset_t * fpregs) } EXPORT_SYMBOL(dump_fpu); -/* - * sparc_execve() executes a new program after the asm stub has set - * things up for us. This should basically do what I want it to. - */ -asmlinkage int sparc_execve(struct pt_regs *regs) -{ - int error, base = 0; - struct filename *filename; - - /* User register window flush is done by entry.S */ - - /* Check for indirect call. */ - if (regs->u_regs[UREG_G1] == 0) - base = 1; - - filename = getname((char __user *)regs->u_regs[base + UREG_I0]); - error = PTR_ERR(filename); - if (IS_ERR(filename)) - goto out; - error = do_execve(filename->name, - (const char __user *const __user *) - regs->u_regs[base + UREG_I1], - (const char __user *const __user *) - regs->u_regs[base + UREG_I2], regs); - putname(filename); - if (!error) { - fprs_write(0); - current_thread_info()->xfsr[0] = 0; - current_thread_info()->fpsaved[0] = 0; - regs->tstate &= ~TSTATE_PEF; - } -out: - return error; -} - unsigned long get_wchan(struct task_struct *task) { unsigned long pc, fp, bias = 0; diff --git a/arch/sparc/kernel/prom.h b/arch/sparc/kernel/prom.h index cf5fe1c0b02..890281b12b2 100644 --- a/arch/sparc/kernel/prom.h +++ b/arch/sparc/kernel/prom.h @@ -4,7 +4,7 @@ #include <linux/spinlock.h> #include <asm/prom.h> -extern void of_console_init(void); +void of_console_init(void); extern unsigned int prom_early_allocated; diff --git a/arch/sparc/kernel/prom_64.c b/arch/sparc/kernel/prom_64.c index d397d7fc5c2..20cc5d80a47 100644 --- a/arch/sparc/kernel/prom_64.c +++ b/arch/sparc/kernel/prom_64.c @@ -15,11 +15,12 @@ * 2 of the License, or (at your option) any later version. */ +#include <linux/memblock.h> #include <linux/kernel.h> -#include <linux/types.h> #include <linux/string.h> +#include <linux/types.h> +#include <linux/cpu.h> #include <linux/mm.h> -#include <linux/memblock.h> #include <linux/of.h> #include <asm/prom.h> @@ -373,6 +374,59 @@ static const char *get_mid_prop(void) return (tlb_type == spitfire ? "upa-portid" : "portid"); } +bool arch_find_n_match_cpu_physical_id(struct device_node *cpun, + int cpu, unsigned int *thread) +{ + const char *mid_prop = get_mid_prop(); + int this_cpu_id; + + /* On hypervisor based platforms we interrogate the 'reg' + * property. On everything else we look for a 'upa-portis', + * 'portid', or 'cpuid' property. + */ + + if (tlb_type == hypervisor) { + struct property *prop = of_find_property(cpun, "reg", NULL); + u32 *regs; + + if (!prop) { + pr_warn("CPU node missing reg property\n"); + return false; + } + regs = prop->value; + this_cpu_id = regs[0] & 0x0fffffff; + } else { + this_cpu_id = of_getintprop_default(cpun, mid_prop, -1); + + if (this_cpu_id < 0) { + mid_prop = "cpuid"; + this_cpu_id = of_getintprop_default(cpun, mid_prop, -1); + } + if (this_cpu_id < 0) { + pr_warn("CPU node missing cpu ID property\n"); + return false; + } + } + if (this_cpu_id == cpu) { + if (thread) { + int proc_id = cpu_data(cpu).proc_id; + + /* On sparc64, the cpu thread information is obtained + * either from OBP or the machine description. We've + * actually probed this information already long before + * this interface gets called so instead of interrogating + * both the OF node and the MDESC again, just use what + * we discovered already. + */ + if (proc_id < 0) + proc_id = 0; + *thread = proc_id; + } + return true; + } + return false; +} + static void *of_iterate_over_cpus(void *(*func)(struct device_node *, int, int), int arg) { struct device_node *dp; @@ -502,9 +556,6 @@ static void *fill_in_one_cpu(struct device_node *dp, int cpuid, int arg) cpu_data(cpuid).core_id = portid + 1; cpu_data(cpuid).proc_id = portid; -#ifdef CONFIG_SMP - sparc64_multi_core = 1; -#endif } else { cpu_data(cpuid).dcache_size = of_getintprop_default(dp, "dcache-size", 16 * 1024); diff --git a/arch/sparc/kernel/prom_common.c b/arch/sparc/kernel/prom_common.c index 1303021748c..79cc0d1a477 100644 --- a/arch/sparc/kernel/prom_common.c +++ b/arch/sparc/kernel/prom_common.c @@ -54,6 +54,7 @@ EXPORT_SYMBOL(of_set_property_mutex); int of_set_property(struct device_node *dp, const char *name, void *val, int len) { struct property **prevp; + unsigned long flags; void *new_val; int err; @@ -64,7 +65,7 @@ int of_set_property(struct device_node *dp, const char *name, void *val, int len err = -ENODEV; mutex_lock(&of_set_property_mutex); - write_lock(&devtree_lock); + raw_spin_lock_irqsave(&devtree_lock, flags); prevp = &dp->properties; while (*prevp) { struct property *prop = *prevp; @@ -91,7 +92,7 @@ int of_set_property(struct device_node *dp, const char *name, void *val, int len } prevp = &(*prevp)->next; } - write_unlock(&devtree_lock); + raw_spin_unlock_irqrestore(&devtree_lock, flags); mutex_unlock(&of_set_property_mutex); /* XXX Upate procfs if necessary... */ diff --git a/arch/sparc/kernel/psycho_common.h b/arch/sparc/kernel/psycho_common.h index 590b4ed8ab5..05a6e30a928 100644 --- a/arch/sparc/kernel/psycho_common.h +++ b/arch/sparc/kernel/psycho_common.h @@ -30,19 +30,19 @@ enum psycho_error_type { UE_ERR, CE_ERR, PCI_ERR }; -extern void psycho_check_iommu_error(struct pci_pbm_info *pbm, - unsigned long afsr, - unsigned long afar, - enum psycho_error_type type); +void psycho_check_iommu_error(struct pci_pbm_info *pbm, + unsigned long afsr, + unsigned long afar, + enum psycho_error_type type); -extern irqreturn_t psycho_pcierr_intr(int irq, void *dev_id); +irqreturn_t psycho_pcierr_intr(int irq, void *dev_id); -extern int psycho_iommu_init(struct pci_pbm_info *pbm, int tsbsize, - u32 dvma_offset, u32 dma_mask, - unsigned long write_complete_offset); +int psycho_iommu_init(struct pci_pbm_info *pbm, int tsbsize, + u32 dvma_offset, u32 dma_mask, + unsigned long write_complete_offset); -extern void psycho_pbm_init_common(struct pci_pbm_info *pbm, - struct platform_device *op, - const char *chip_name, int chip_type); +void psycho_pbm_init_common(struct pci_pbm_info *pbm, + struct platform_device *op, + const char *chip_name, int chip_type); #endif /* _PSYCHO_COMMON_H */ diff --git a/arch/sparc/kernel/ptrace_32.c b/arch/sparc/kernel/ptrace_32.c index 896ba7c5cd8..a331fdc11a2 100644 --- a/arch/sparc/kernel/ptrace_32.c +++ b/arch/sparc/kernel/ptrace_32.c @@ -26,6 +26,8 @@ #include <asm/uaccess.h> #include <asm/cacheflush.h> +#include "kernel.h" + /* #define ALLOW_INIT_TRACING */ /* diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c index 484dabac704..c13c9f25d83 100644 --- a/arch/sparc/kernel/ptrace_64.c +++ b/arch/sparc/kernel/ptrace_64.c @@ -14,6 +14,7 @@ #include <linux/sched.h> #include <linux/mm.h> #include <linux/errno.h> +#include <linux/export.h> #include <linux/ptrace.h> #include <linux/user.h> #include <linux/smp.h> @@ -26,6 +27,7 @@ #include <trace/syscall.h> #include <linux/compat.h> #include <linux/elf.h> +#include <linux/context_tracking.h> #include <asm/asi.h> #include <asm/pgtable.h> @@ -116,6 +118,7 @@ void flush_ptrace_access(struct vm_area_struct *vma, struct page *page, preempt_enable(); } +EXPORT_SYMBOL_GPL(flush_ptrace_access); static int get_from_target(struct task_struct *target, unsigned long uaddr, void *kbuf, int len) @@ -151,7 +154,7 @@ static int regwindow64_get(struct task_struct *target, { unsigned long rw_addr = regs->u_regs[UREG_I6]; - if (test_tsk_thread_flag(current, TIF_32BIT)) { + if (!test_thread_64bit_stack(rw_addr)) { struct reg_window32 win32; int i; @@ -176,7 +179,7 @@ static int regwindow64_set(struct task_struct *target, { unsigned long rw_addr = regs->u_regs[UREG_I6]; - if (test_tsk_thread_flag(current, TIF_32BIT)) { + if (!test_thread_64bit_stack(rw_addr)) { struct reg_window32 win32; int i; @@ -1064,6 +1067,9 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs) /* do the secure computing check first */ secure_computing_strict(regs->u_regs[UREG_G1]); + if (test_thread_flag(TIF_NOHZ)) + user_exit(); + if (test_thread_flag(TIF_SYSCALL_TRACE)) ret = tracehook_report_syscall_entry(regs); @@ -1084,11 +1090,17 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs) asmlinkage void syscall_trace_leave(struct pt_regs *regs) { + if (test_thread_flag(TIF_NOHZ)) + user_exit(); + audit_syscall_exit(regs); if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT))) - trace_sys_exit(regs, regs->u_regs[UREG_G1]); + trace_sys_exit(regs, regs->u_regs[UREG_I0]); if (test_thread_flag(TIF_SYSCALL_TRACE)) tracehook_report_syscall_exit(regs, 0); + + if (test_thread_flag(TIF_NOHZ)) + user_enter(); } diff --git a/arch/sparc/kernel/rtrap_64.S b/arch/sparc/kernel/rtrap_64.S index afa2a9e3d0a..39f0c662f4c 100644 --- a/arch/sparc/kernel/rtrap_64.S +++ b/arch/sparc/kernel/rtrap_64.S @@ -18,10 +18,16 @@ #define RTRAP_PSTATE_IRQOFF (PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV) #define RTRAP_PSTATE_AG_IRQOFF (PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV|PSTATE_AG) +#ifdef CONFIG_CONTEXT_TRACKING +# define SCHEDULE_USER schedule_user +#else +# define SCHEDULE_USER schedule +#endif + .text .align 32 __handle_preemption: - call schedule + call SCHEDULE_USER wrpr %g0, RTRAP_PSTATE, %pstate ba,pt %xcc, __handle_preemption_continue wrpr %g0, RTRAP_PSTATE_IRQOFF, %pstate @@ -306,12 +312,10 @@ to_kernel: nop cmp %l4, 0 bne,pn %xcc, kern_fpucheck - sethi %hi(PREEMPT_ACTIVE), %l6 - stw %l6, [%g6 + TI_PRE_COUNT] - call schedule + nop + call preempt_schedule_irq nop ba,pt %xcc, rtrap - stw %g0, [%g6 + TI_PRE_COUNT] #endif kern_fpucheck: ldub [%g6 + TI_FPDEPTH], %l5 brz,pt %l5, rt_continue diff --git a/arch/sparc/kernel/sbus.c b/arch/sparc/kernel/sbus.c index 1271b3a27d4..be5bdf93c76 100644 --- a/arch/sparc/kernel/sbus.c +++ b/arch/sparc/kernel/sbus.c @@ -554,10 +554,8 @@ static void __init sbus_iommu_init(struct platform_device *op) regs = pr->phys_addr; iommu = kzalloc(sizeof(*iommu), GFP_ATOMIC); - if (!iommu) - goto fatal_memory_error; strbuf = kzalloc(sizeof(*strbuf), GFP_ATOMIC); - if (!strbuf) + if (!iommu || !strbuf) goto fatal_memory_error; op->dev.archdata.iommu = iommu; @@ -656,6 +654,8 @@ static void __init sbus_iommu_init(struct platform_device *op) return; fatal_memory_error: + kfree(iommu); + kfree(strbuf); prom_printf("sbus_iommu_init: Fatal memory allocation error.\n"); } diff --git a/arch/sparc/kernel/setup_32.c b/arch/sparc/kernel/setup_32.c index 38bf80a22f0..baef495c06b 100644 --- a/arch/sparc/kernel/setup_32.c +++ b/arch/sparc/kernel/setup_32.c @@ -267,7 +267,7 @@ static __init void leon_patch(void) } struct tt_entry *sparc_ttable; -struct pt_regs fake_swapper_regs; +static struct pt_regs fake_swapper_regs; /* Called from head_32.S - before we have setup anything * in the kernel. Be very careful with what you do here. @@ -304,7 +304,7 @@ void __init setup_arch(char **cmdline_p) /* Initialize PROM console and command line. */ *cmdline_p = prom_getbootargs(); - strcpy(boot_command_line, *cmdline_p); + strlcpy(boot_command_line, *cmdline_p, COMMAND_LINE_SIZE); parse_early_param(); boot_flags_init(*cmdline_p); @@ -365,7 +365,7 @@ void __init setup_arch(char **cmdline_p) prom_setsync(prom_sync_me); - if((boot_flags&BOOTME_DEBUG) && (linux_dbvec!=0) && + if((boot_flags & BOOTME_DEBUG) && (linux_dbvec != NULL) && ((*(short *)linux_dbvec) != -1)) { printk("Booted under KADB. Syncing trap table.\n"); (*(linux_dbvec->teach_debugger))(); diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c index 0800e71d8a8..3fdb455e331 100644 --- a/arch/sparc/kernel/setup_64.c +++ b/arch/sparc/kernel/setup_64.c @@ -115,7 +115,7 @@ static void __init process_switch(char c) break; } cheetah_pcache_forced_on = 1; - add_taint(TAINT_MACHINE_CHECK); + add_taint(TAINT_MACHINE_CHECK, LOCKDEP_NOW_UNRELIABLE); cheetah_enable_pcache(); break; @@ -316,6 +316,25 @@ static void __init popc_patch(void) } } +static void __init pause_patch(void) +{ + struct pause_patch_entry *p; + + p = &__pause_3insn_patch; + while (p < &__pause_3insn_patch_end) { + unsigned long i, addr = p->addr; + + for (i = 0; i < 3; i++) { + *(unsigned int *) (addr + (i * 4)) = p->insns[i]; + wmb(); + __asm__ __volatile__("flush %0" + : : "r" (addr + (i * 4))); + } + + p++; + } +} + #ifdef CONFIG_SMP void __init boot_cpu_id_too_large(int cpu) { @@ -480,12 +499,14 @@ static void __init init_sparc64_elf_hwcap(void) sun4v_chip_type == SUN4V_CHIP_NIAGARA2 || sun4v_chip_type == SUN4V_CHIP_NIAGARA3 || sun4v_chip_type == SUN4V_CHIP_NIAGARA4 || - sun4v_chip_type == SUN4V_CHIP_NIAGARA5) + sun4v_chip_type == SUN4V_CHIP_NIAGARA5 || + sun4v_chip_type == SUN4V_CHIP_SPARC64X) cap |= HWCAP_SPARC_BLKINIT; if (sun4v_chip_type == SUN4V_CHIP_NIAGARA2 || sun4v_chip_type == SUN4V_CHIP_NIAGARA3 || sun4v_chip_type == SUN4V_CHIP_NIAGARA4 || - sun4v_chip_type == SUN4V_CHIP_NIAGARA5) + sun4v_chip_type == SUN4V_CHIP_NIAGARA5 || + sun4v_chip_type == SUN4V_CHIP_SPARC64X) cap |= HWCAP_SPARC_N2; } @@ -511,13 +532,15 @@ static void __init init_sparc64_elf_hwcap(void) if (sun4v_chip_type == SUN4V_CHIP_NIAGARA2 || sun4v_chip_type == SUN4V_CHIP_NIAGARA3 || sun4v_chip_type == SUN4V_CHIP_NIAGARA4 || - sun4v_chip_type == SUN4V_CHIP_NIAGARA5) + sun4v_chip_type == SUN4V_CHIP_NIAGARA5 || + sun4v_chip_type == SUN4V_CHIP_SPARC64X) cap |= (AV_SPARC_VIS | AV_SPARC_VIS2 | AV_SPARC_ASI_BLK_INIT | AV_SPARC_POPC); if (sun4v_chip_type == SUN4V_CHIP_NIAGARA3 || sun4v_chip_type == SUN4V_CHIP_NIAGARA4 || - sun4v_chip_type == SUN4V_CHIP_NIAGARA5) + sun4v_chip_type == SUN4V_CHIP_NIAGARA5 || + sun4v_chip_type == SUN4V_CHIP_SPARC64X) cap |= (AV_SPARC_VIS3 | AV_SPARC_HPC | AV_SPARC_FMAF); } @@ -528,13 +551,15 @@ static void __init init_sparc64_elf_hwcap(void) if (sparc64_elf_hwcap & AV_SPARC_POPC) popc_patch(); + if (sparc64_elf_hwcap & AV_SPARC_PAUSE) + pause_patch(); } void __init setup_arch(char **cmdline_p) { /* Initialize PROM console and command line. */ *cmdline_p = prom_getbootargs(); - strcpy(boot_command_line, *cmdline_p); + strlcpy(boot_command_line, *cmdline_p, COMMAND_LINE_SIZE); parse_early_param(); boot_flags_init(*cmdline_p); diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c index 53e48f721ce..62deba7be1a 100644 --- a/arch/sparc/kernel/signal32.c +++ b/arch/sparc/kernel/signal32.c @@ -31,6 +31,7 @@ #include <asm/switch_to.h> #include "sigutil.h" +#include "kernel.h" /* This magic should be in g_upper[0] for all upper parts * to be valid. @@ -61,14 +62,14 @@ struct rt_signal_frame32 { compat_sigset_t mask; /* __siginfo_fpu_t * */ u32 fpu_save; unsigned int insns[2]; - stack_t32 stack; + compat_stack_t stack; unsigned int extra_size; /* Should be sizeof(siginfo_extra_v8plus_t) */ /* Only valid if (regs.psr & (PSR_VERS|PSR_IMPL)) == PSR_V8PLUS */ siginfo_extra_v8plus_t v8plus; /* __siginfo_rwin_t * */u32 rwin_save; } __attribute__((aligned(8))); -int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from) +int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from) { int err; @@ -145,7 +146,7 @@ void do_sigreturn32(struct pt_regs *regs) unsigned int psr; unsigned pc, npc; sigset_t set; - unsigned seta[_COMPAT_NSIG_WORDS]; + compat_sigset_t seta; int err, i; /* Always make any pending restarted system calls return -EINTR */ @@ -209,17 +210,13 @@ void do_sigreturn32(struct pt_regs *regs) if (restore_rwin_state(compat_ptr(rwin_save))) goto segv; } - err |= __get_user(seta[0], &sf->info.si_mask); - err |= copy_from_user(seta+1, &sf->extramask, + err |= __get_user(seta.sig[0], &sf->info.si_mask); + err |= copy_from_user(&seta.sig[1], &sf->extramask, (_COMPAT_NSIG_WORDS - 1) * sizeof(unsigned int)); if (err) goto segv; - switch (_NSIG_WORDS) { - case 4: set.sig[3] = seta[6] + (((long)seta[7]) << 32); - case 3: set.sig[2] = seta[4] + (((long)seta[5]) << 32); - case 2: set.sig[1] = seta[2] + (((long)seta[3]) << 32); - case 1: set.sig[0] = seta[0] + (((long)seta[1]) << 32); - } + + set.sig[0] = seta.sig[0] + (((long)seta.sig[1]) << 32); set_current_blocked(&set); return; @@ -230,13 +227,11 @@ segv: asmlinkage void do_rt_sigreturn32(struct pt_regs *regs) { struct rt_signal_frame32 __user *sf; - unsigned int psr, pc, npc, u_ss_sp; + unsigned int psr, pc, npc; compat_uptr_t fpu_save; compat_uptr_t rwin_save; - mm_segment_t old_fs; sigset_t set; compat_sigset_t seta; - stack_t st; int err, i; /* Always make any pending restarted system calls return -EINTR */ @@ -295,32 +290,17 @@ asmlinkage void do_rt_sigreturn32(struct pt_regs *regs) if (!err && fpu_save) err |= restore_fpu_state(regs, compat_ptr(fpu_save)); err |= copy_from_user(&seta, &sf->mask, sizeof(compat_sigset_t)); - err |= __get_user(u_ss_sp, &sf->stack.ss_sp); - st.ss_sp = compat_ptr(u_ss_sp); - err |= __get_user(st.ss_flags, &sf->stack.ss_flags); - err |= __get_user(st.ss_size, &sf->stack.ss_size); + err |= compat_restore_altstack(&sf->stack); if (err) goto segv; - /* It is more difficult to avoid calling this function than to - call it and ignore errors. */ - old_fs = get_fs(); - set_fs(KERNEL_DS); - do_sigaltstack((stack_t __user *) &st, NULL, (unsigned long)sf); - set_fs(old_fs); - err |= __get_user(rwin_save, &sf->rwin_save); if (!err && rwin_save) { if (restore_rwin_state(compat_ptr(rwin_save))) goto segv; } - switch (_NSIG_WORDS) { - case 4: set.sig[3] = seta.sig[6] + (((long)seta.sig[7]) << 32); - case 3: set.sig[2] = seta.sig[4] + (((long)seta.sig[5]) << 32); - case 2: set.sig[1] = seta.sig[2] + (((long)seta.sig[3]) << 32); - case 1: set.sig[0] = seta.sig[0] + (((long)seta.sig[1]) << 32); - } + set.sig[0] = seta.sig[0] + (((long)seta.sig[1]) << 32); set_current_blocked(&set); return; segv: @@ -335,7 +315,7 @@ static int invalid_frame_pointer(void __user *fp, int fplen) return 0; } -static void __user *get_sigframe(struct sigaction *sa, struct pt_regs *regs, unsigned long framesize) +static void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs, unsigned long framesize) { unsigned long sp; @@ -350,12 +330,7 @@ static void __user *get_sigframe(struct sigaction *sa, struct pt_regs *regs, uns return (void __user *) -1L; /* This is the X/Open sanctioned signal stack switching. */ - if (sa->sa_flags & SA_ONSTACK) { - if (sas_ss_flags(sp) == 0) - sp = current->sas_ss_sp + current->sas_ss_size; - } - - sp -= framesize; + sp = sigsp(sp, ksig) - framesize; /* Always align the stack frame. This handles two cases. First, * sigaltstack need not be mindful of platform specific stack @@ -426,15 +401,15 @@ out_irqs_on: } -static int setup_frame32(struct k_sigaction *ka, struct pt_regs *regs, - int signo, sigset_t *oldset) +static int setup_frame32(struct ksignal *ksig, struct pt_regs *regs, + sigset_t *oldset) { struct signal_frame32 __user *sf; int i, err, wsaved; void __user *tail; int sigframe_size; u32 psr; - unsigned int seta[_COMPAT_NSIG_WORDS]; + compat_sigset_t seta; /* 1. Make sure everything is clean */ synchronize_user_stack(); @@ -449,10 +424,12 @@ static int setup_frame32(struct k_sigaction *ka, struct pt_regs *regs, sigframe_size += sizeof(__siginfo_rwin_t); sf = (struct signal_frame32 __user *) - get_sigframe(&ka->sa, regs, sigframe_size); + get_sigframe(ksig, regs, sigframe_size); - if (invalid_frame_pointer(sf, sigframe_size)) - goto sigill; + if (invalid_frame_pointer(sf, sigframe_size)) { + do_exit(SIGILL); + return -EINVAL; + } tail = (sf + 1); @@ -496,18 +473,14 @@ static int setup_frame32(struct k_sigaction *ka, struct pt_regs *regs, err |= __put_user(0, &sf->rwin_save); } - switch (_NSIG_WORDS) { - case 4: seta[7] = (oldset->sig[3] >> 32); - seta[6] = oldset->sig[3]; - case 3: seta[5] = (oldset->sig[2] >> 32); - seta[4] = oldset->sig[2]; - case 2: seta[3] = (oldset->sig[1] >> 32); - seta[2] = oldset->sig[1]; - case 1: seta[1] = (oldset->sig[0] >> 32); - seta[0] = oldset->sig[0]; - } - err |= __put_user(seta[0], &sf->info.si_mask); - err |= __copy_to_user(sf->extramask, seta + 1, + /* If these change we need to know - assignments to seta relies on these sizes */ + BUILD_BUG_ON(_NSIG_WORDS != 1); + BUILD_BUG_ON(_COMPAT_NSIG_WORDS != 2); + seta.sig[1] = (oldset->sig[0] >> 32); + seta.sig[0] = oldset->sig[0]; + + err |= __put_user(seta.sig[0], &sf->info.si_mask); + err |= __copy_to_user(sf->extramask, &seta.sig[1], (_COMPAT_NSIG_WORDS - 1) * sizeof(unsigned int)); if (!wsaved) { @@ -526,16 +499,16 @@ static int setup_frame32(struct k_sigaction *ka, struct pt_regs *regs, err |= __put_user(rp->ins[7], &sf->ss.callers_pc); } if (err) - goto sigsegv; + return err; /* 3. signal handler back-trampoline and parameters */ regs->u_regs[UREG_FP] = (unsigned long) sf; - regs->u_regs[UREG_I0] = signo; + regs->u_regs[UREG_I0] = ksig->sig; regs->u_regs[UREG_I1] = (unsigned long) &sf->info; regs->u_regs[UREG_I2] = (unsigned long) &sf->info; /* 4. signal handler */ - regs->tpc = (unsigned long) ka->sa.sa_handler; + regs->tpc = (unsigned long) ksig->ka.sa.sa_handler; regs->tnpc = (regs->tpc + 4); if (test_thread_flag(TIF_32BIT)) { regs->tpc &= 0xffffffff; @@ -543,8 +516,8 @@ static int setup_frame32(struct k_sigaction *ka, struct pt_regs *regs, } /* 5. return to kernel instructions */ - if (ka->ka_restorer) { - regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer; + if (ksig->ka.ka_restorer) { + regs->u_regs[UREG_I7] = (unsigned long)ksig->ka.ka_restorer; } else { unsigned long address = ((unsigned long)&(sf->insns[0])); @@ -553,23 +526,14 @@ static int setup_frame32(struct k_sigaction *ka, struct pt_regs *regs, err = __put_user(0x821020d8, &sf->insns[0]); /*mov __NR_sigreturn, %g1*/ err |= __put_user(0x91d02010, &sf->insns[1]); /*t 0x10*/ if (err) - goto sigsegv; + return err; flush_signal_insns(address); } return 0; - -sigill: - do_exit(SIGILL); - return -EINVAL; - -sigsegv: - force_sigsegv(signo, current); - return -EFAULT; } -static int setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs, - unsigned long signr, sigset_t *oldset, - siginfo_t *info) +static int setup_rt_frame32(struct ksignal *ksig, struct pt_regs *regs, + sigset_t *oldset) { struct rt_signal_frame32 __user *sf; int i, err, wsaved; @@ -591,10 +555,12 @@ static int setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs, sigframe_size += sizeof(__siginfo_rwin_t); sf = (struct rt_signal_frame32 __user *) - get_sigframe(&ka->sa, regs, sigframe_size); + get_sigframe(ksig, regs, sigframe_size); - if (invalid_frame_pointer(sf, sigframe_size)) - goto sigill; + if (invalid_frame_pointer(sf, sigframe_size)) { + do_exit(SIGILL); + return -EINVAL; + } tail = (sf + 1); @@ -639,23 +605,13 @@ static int setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs, } /* Update the siginfo structure. */ - err |= copy_siginfo_to_user32(&sf->info, info); + err |= copy_siginfo_to_user32(&sf->info, &ksig->info); /* Setup sigaltstack */ - err |= __put_user(current->sas_ss_sp, &sf->stack.ss_sp); - err |= __put_user(sas_ss_flags(regs->u_regs[UREG_FP]), &sf->stack.ss_flags); - err |= __put_user(current->sas_ss_size, &sf->stack.ss_size); - - switch (_NSIG_WORDS) { - case 4: seta.sig[7] = (oldset->sig[3] >> 32); - seta.sig[6] = oldset->sig[3]; - case 3: seta.sig[5] = (oldset->sig[2] >> 32); - seta.sig[4] = oldset->sig[2]; - case 2: seta.sig[3] = (oldset->sig[1] >> 32); - seta.sig[2] = oldset->sig[1]; - case 1: seta.sig[1] = (oldset->sig[0] >> 32); - seta.sig[0] = oldset->sig[0]; - } + err |= __compat_save_altstack(&sf->stack, regs->u_regs[UREG_FP]); + + seta.sig[1] = (oldset->sig[0] >> 32); + seta.sig[0] = oldset->sig[0]; err |= __copy_to_user(&sf->mask, &seta, sizeof(compat_sigset_t)); if (!wsaved) { @@ -674,16 +630,16 @@ static int setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs, err |= __put_user(rp->ins[7], &sf->ss.callers_pc); } if (err) - goto sigsegv; + return err; /* 3. signal handler back-trampoline and parameters */ regs->u_regs[UREG_FP] = (unsigned long) sf; - regs->u_regs[UREG_I0] = signr; + regs->u_regs[UREG_I0] = ksig->sig; regs->u_regs[UREG_I1] = (unsigned long) &sf->info; regs->u_regs[UREG_I2] = (unsigned long) &sf->regs; /* 4. signal handler */ - regs->tpc = (unsigned long) ka->sa.sa_handler; + regs->tpc = (unsigned long) ksig->ka.sa.sa_handler; regs->tnpc = (regs->tpc + 4); if (test_thread_flag(TIF_32BIT)) { regs->tpc &= 0xffffffff; @@ -691,8 +647,8 @@ static int setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs, } /* 5. return to kernel instructions */ - if (ka->ka_restorer) - regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer; + if (ksig->ka.ka_restorer) + regs->u_regs[UREG_I7] = (unsigned long)ksig->ka.ka_restorer; else { unsigned long address = ((unsigned long)&(sf->insns[0])); @@ -704,36 +660,25 @@ static int setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs, /* t 0x10 */ err |= __put_user(0x91d02010, &sf->insns[1]); if (err) - goto sigsegv; + return err; flush_signal_insns(address); } return 0; - -sigill: - do_exit(SIGILL); - return -EINVAL; - -sigsegv: - force_sigsegv(signr, current); - return -EFAULT; } -static inline void handle_signal32(unsigned long signr, struct k_sigaction *ka, - siginfo_t *info, - sigset_t *oldset, struct pt_regs *regs) +static inline void handle_signal32(struct ksignal *ksig, + struct pt_regs *regs) { + sigset_t *oldset = sigmask_to_save(); int err; - if (ka->sa.sa_flags & SA_SIGINFO) - err = setup_rt_frame32(ka, regs, signr, oldset, info); + if (ksig->ka.sa.sa_flags & SA_SIGINFO) + err = setup_rt_frame32(ksig, regs, oldset); else - err = setup_frame32(ka, regs, signr, oldset); - - if (err) - return; + err = setup_frame32(ksig, regs, oldset); - signal_delivered(signr, info, ka, regs, 0); + signal_setup_done(err, ksig, 0); } static inline void syscall_restart32(unsigned long orig_i0, struct pt_regs *regs, @@ -761,52 +706,43 @@ static inline void syscall_restart32(unsigned long orig_i0, struct pt_regs *regs * want to handle. Thus you cannot kill init even with a SIGKILL even by * mistake. */ -void do_signal32(sigset_t *oldset, struct pt_regs * regs) +void do_signal32(struct pt_regs * regs) { - struct k_sigaction ka; - unsigned long orig_i0; - int restart_syscall; - siginfo_t info; - int signr; - - signr = get_signal_to_deliver(&info, &ka, regs, NULL); + struct ksignal ksig; + unsigned long orig_i0 = 0; + int restart_syscall = 0; + bool has_handler = get_signal(&ksig); - restart_syscall = 0; - orig_i0 = 0; if (pt_regs_is_syscall(regs) && (regs->tstate & (TSTATE_XCARRY | TSTATE_ICARRY))) { restart_syscall = 1; orig_i0 = regs->u_regs[UREG_G6]; } - if (signr > 0) { + if (has_handler) { if (restart_syscall) - syscall_restart32(orig_i0, regs, &ka.sa); - handle_signal32(signr, &ka, &info, oldset, regs); - return; - } - if (restart_syscall && - (regs->u_regs[UREG_I0] == ERESTARTNOHAND || - regs->u_regs[UREG_I0] == ERESTARTSYS || - regs->u_regs[UREG_I0] == ERESTARTNOINTR)) { - /* replay the system call when we are done */ - regs->u_regs[UREG_I0] = orig_i0; - regs->tpc -= 4; - regs->tnpc -= 4; - pt_regs_clear_syscall(regs); - } - if (restart_syscall && - regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) { - regs->u_regs[UREG_G1] = __NR_restart_syscall; - regs->tpc -= 4; - regs->tnpc -= 4; - pt_regs_clear_syscall(regs); + syscall_restart32(orig_i0, regs, &ksig.ka.sa); + handle_signal32(&ksig, regs); + } else { + if (restart_syscall) { + switch (regs->u_regs[UREG_I0]) { + case ERESTARTNOHAND: + case ERESTARTSYS: + case ERESTARTNOINTR: + /* replay the system call when we are done */ + regs->u_regs[UREG_I0] = orig_i0; + regs->tpc -= 4; + regs->tnpc -= 4; + pt_regs_clear_syscall(regs); + case ERESTART_RESTARTBLOCK: + regs->u_regs[UREG_G1] = __NR_restart_syscall; + regs->tpc -= 4; + regs->tnpc -= 4; + pt_regs_clear_syscall(regs); + } + } + restore_saved_sigmask(); } - - /* If there's no signal to deliver, we just put the saved sigmask - * back - */ - restore_saved_sigmask(); } struct sigstack32 { @@ -856,29 +792,3 @@ asmlinkage int do_sys32_sigstack(u32 u_ssptr, u32 u_ossptr, unsigned long sp) out: return ret; } - -asmlinkage long do_sys32_sigaltstack(u32 ussa, u32 uossa, unsigned long sp) -{ - stack_t uss, uoss; - u32 u_ss_sp = 0; - int ret; - mm_segment_t old_fs; - stack_t32 __user *uss32 = compat_ptr(ussa); - stack_t32 __user *uoss32 = compat_ptr(uossa); - - if (ussa && (get_user(u_ss_sp, &uss32->ss_sp) || - __get_user(uss.ss_flags, &uss32->ss_flags) || - __get_user(uss.ss_size, &uss32->ss_size))) - return -EFAULT; - uss.ss_sp = compat_ptr(u_ss_sp); - old_fs = get_fs(); - set_fs(KERNEL_DS); - ret = do_sigaltstack(ussa ? (stack_t __user *) &uss : NULL, - uossa ? (stack_t __user *) &uoss : NULL, sp); - set_fs(old_fs); - if (!ret && uossa && (put_user(ptr_to_compat(uoss.ss_sp), &uoss32->ss_sp) || - __put_user(uoss.ss_flags, &uoss32->ss_flags) || - __put_user(uoss.ss_size, &uoss32->ss_size))) - return -EFAULT; - return ret; -} diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c index 68f9c8650af..9ee72fc8e0e 100644 --- a/arch/sparc/kernel/signal_32.c +++ b/arch/sparc/kernel/signal_32.c @@ -28,6 +28,7 @@ #include <asm/switch_to.h> #include "sigutil.h" +#include "kernel.h" extern void fpsave(unsigned long *fpregs, unsigned long *fsr, void *fpqueue, unsigned long *fpqdepth); @@ -59,18 +60,6 @@ struct rt_signal_frame { #define SF_ALIGNEDSZ (((sizeof(struct signal_frame) + 7) & (~7))) #define RT_ALIGNEDSZ (((sizeof(struct rt_signal_frame) + 7) & (~7))) -static int _sigpause_common(old_sigset_t set) -{ - sigset_t blocked; - siginitset(&blocked, set); - return sigsuspend(&blocked); -} - -asmlinkage int sys_sigsuspend(old_sigset_t set) -{ - return _sigpause_common(set); -} - asmlinkage void do_sigreturn(struct pt_regs *regs) { struct signal_frame __user *sf; @@ -141,9 +130,7 @@ asmlinkage void do_rt_sigreturn(struct pt_regs *regs) unsigned int psr, pc, npc; __siginfo_fpu_t __user *fpu_save; __siginfo_rwin_t __user *rwin_save; - mm_segment_t old_fs; sigset_t set; - stack_t st; int err; synchronize_user_stack(); @@ -171,8 +158,7 @@ asmlinkage void do_rt_sigreturn(struct pt_regs *regs) if (!err && fpu_save) err |= restore_fpu_state(regs, fpu_save); err |= __copy_from_user(&set, &sf->mask, sizeof(sigset_t)); - - err |= __copy_from_user(&st, &sf->stack, sizeof(stack_t)); + err |= restore_altstack(&sf->stack); if (err) goto segv; @@ -180,14 +166,6 @@ asmlinkage void do_rt_sigreturn(struct pt_regs *regs) regs->pc = pc; regs->npc = npc; - /* It is more difficult to avoid calling this function than to - * call it and ignore errors. - */ - old_fs = get_fs(); - set_fs(KERNEL_DS); - do_sigaltstack((const stack_t __user *) &st, NULL, (unsigned long)sf); - set_fs(old_fs); - err |= __get_user(rwin_save, &sf->rwin_save); if (!err && rwin_save) { if (restore_rwin_state(rwin_save)) @@ -209,7 +187,7 @@ static inline int invalid_frame_pointer(void __user *fp, int fplen) return 0; } -static inline void __user *get_sigframe(struct sigaction *sa, struct pt_regs *regs, unsigned long framesize) +static inline void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs, unsigned long framesize) { unsigned long sp = regs->u_regs[UREG_FP]; @@ -221,12 +199,7 @@ static inline void __user *get_sigframe(struct sigaction *sa, struct pt_regs *re return (void __user *) -1L; /* This is the X/Open sanctioned signal stack switching. */ - if (sa->sa_flags & SA_ONSTACK) { - if (sas_ss_flags(sp) == 0) - sp = current->sas_ss_sp + current->sas_ss_size; - } - - sp -= framesize; + sp = sigsp(sp, ksig) - framesize; /* Always align the stack frame. This handles two cases. First, * sigaltstack need not be mindful of platform specific stack @@ -239,8 +212,8 @@ static inline void __user *get_sigframe(struct sigaction *sa, struct pt_regs *re return (void __user *) sp; } -static int setup_frame(struct k_sigaction *ka, struct pt_regs *regs, - int signo, sigset_t *oldset) +static int setup_frame(struct ksignal *ksig, struct pt_regs *regs, + sigset_t *oldset) { struct signal_frame __user *sf; int sigframe_size, err, wsaved; @@ -258,10 +231,12 @@ static int setup_frame(struct k_sigaction *ka, struct pt_regs *regs, sigframe_size += sizeof(__siginfo_rwin_t); sf = (struct signal_frame __user *) - get_sigframe(&ka->sa, regs, sigframe_size); + get_sigframe(ksig, regs, sigframe_size); - if (invalid_frame_pointer(sf, sigframe_size)) - goto sigill_and_return; + if (invalid_frame_pointer(sf, sigframe_size)) { + do_exit(SIGILL); + return -EINVAL; + } tail = sf + 1; @@ -300,21 +275,21 @@ static int setup_frame(struct k_sigaction *ka, struct pt_regs *regs, err |= __copy_to_user(sf, rp, sizeof(struct reg_window32)); } if (err) - goto sigsegv; + return err; /* 3. signal handler back-trampoline and parameters */ regs->u_regs[UREG_FP] = (unsigned long) sf; - regs->u_regs[UREG_I0] = signo; + regs->u_regs[UREG_I0] = ksig->sig; regs->u_regs[UREG_I1] = (unsigned long) &sf->info; regs->u_regs[UREG_I2] = (unsigned long) &sf->info; /* 4. signal handler */ - regs->pc = (unsigned long) ka->sa.sa_handler; + regs->pc = (unsigned long) ksig->ka.sa.sa_handler; regs->npc = (regs->pc + 4); /* 5. return to kernel instructions */ - if (ka->ka_restorer) - regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer; + if (ksig->ka.ka_restorer) + regs->u_regs[UREG_I7] = (unsigned long)ksig->ka.ka_restorer; else { regs->u_regs[UREG_I7] = (unsigned long)(&(sf->insns[0]) - 2); @@ -324,24 +299,16 @@ static int setup_frame(struct k_sigaction *ka, struct pt_regs *regs, /* t 0x10 */ err |= __put_user(0x91d02010, &sf->insns[1]); if (err) - goto sigsegv; + return err; /* Flush instruction space. */ flush_sig_insns(current->mm, (unsigned long) &(sf->insns[0])); } return 0; - -sigill_and_return: - do_exit(SIGILL); - return -EINVAL; - -sigsegv: - force_sigsegv(signo, current); - return -EFAULT; } -static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, - int signo, sigset_t *oldset, siginfo_t *info) +static int setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs, + sigset_t *oldset) { struct rt_signal_frame __user *sf; int sigframe_size, wsaved; @@ -357,9 +324,11 @@ static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, if (wsaved) sigframe_size += sizeof(__siginfo_rwin_t); sf = (struct rt_signal_frame __user *) - get_sigframe(&ka->sa, regs, sigframe_size); - if (invalid_frame_pointer(sf, sigframe_size)) - goto sigill; + get_sigframe(ksig, regs, sigframe_size); + if (invalid_frame_pointer(sf, sigframe_size)) { + do_exit(SIGILL); + return -EINVAL; + } tail = sf + 1; err = __put_user(regs->pc, &sf->regs.pc); @@ -373,7 +342,7 @@ static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, err |= __put_user(0, &sf->extra_size); if (psr & PSR_EF) { - __siginfo_fpu_t *fp = tail; + __siginfo_fpu_t __user *fp = tail; tail += sizeof(*fp); err |= save_fpu_state(regs, fp); err |= __put_user(fp, &sf->fpu_save); @@ -381,7 +350,7 @@ static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, err |= __put_user(0, &sf->fpu_save); } if (wsaved) { - __siginfo_rwin_t *rwp = tail; + __siginfo_rwin_t __user *rwp = tail; tail += sizeof(*rwp); err |= save_rwin_state(wsaved, rwp); err |= __put_user(rwp, &sf->rwin_save); @@ -391,9 +360,7 @@ static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, err |= __copy_to_user(&sf->mask, &oldset->sig[0], sizeof(sigset_t)); /* Setup sigaltstack */ - err |= __put_user(current->sas_ss_sp, &sf->stack.ss_sp); - err |= __put_user(sas_ss_flags(regs->u_regs[UREG_FP]), &sf->stack.ss_flags); - err |= __put_user(current->sas_ss_size, &sf->stack.ss_size); + err |= __save_altstack(&sf->stack, regs->u_regs[UREG_FP]); if (!wsaved) { err |= __copy_to_user(sf, (char *) regs->u_regs[UREG_FP], @@ -405,21 +372,21 @@ static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, err |= __copy_to_user(sf, rp, sizeof(struct reg_window32)); } - err |= copy_siginfo_to_user(&sf->info, info); + err |= copy_siginfo_to_user(&sf->info, &ksig->info); if (err) - goto sigsegv; + return err; regs->u_regs[UREG_FP] = (unsigned long) sf; - regs->u_regs[UREG_I0] = signo; + regs->u_regs[UREG_I0] = ksig->sig; regs->u_regs[UREG_I1] = (unsigned long) &sf->info; regs->u_regs[UREG_I2] = (unsigned long) &sf->regs; - regs->pc = (unsigned long) ka->sa.sa_handler; + regs->pc = (unsigned long) ksig->ka.sa.sa_handler; regs->npc = (regs->pc + 4); - if (ka->ka_restorer) - regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer; + if (ksig->ka.ka_restorer) + regs->u_regs[UREG_I7] = (unsigned long)ksig->ka.ka_restorer; else { regs->u_regs[UREG_I7] = (unsigned long)(&(sf->insns[0]) - 2); @@ -429,38 +396,25 @@ static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, /* t 0x10 */ err |= __put_user(0x91d02010, &sf->insns[1]); if (err) - goto sigsegv; + return err; /* Flush instruction space. */ flush_sig_insns(current->mm, (unsigned long) &(sf->insns[0])); } return 0; - -sigill: - do_exit(SIGILL); - return -EINVAL; - -sigsegv: - force_sigsegv(signo, current); - return -EFAULT; } static inline void -handle_signal(unsigned long signr, struct k_sigaction *ka, - siginfo_t *info, struct pt_regs *regs) +handle_signal(struct ksignal *ksig, struct pt_regs *regs) { sigset_t *oldset = sigmask_to_save(); int err; - if (ka->sa.sa_flags & SA_SIGINFO) - err = setup_rt_frame(ka, regs, signr, oldset, info); + if (ksig->ka.sa.sa_flags & SA_SIGINFO) + err = setup_rt_frame(ksig, regs, oldset); else - err = setup_frame(ka, regs, signr, oldset); - - if (err) - return; - - signal_delivered(signr, info, ka, regs, 0); + err = setup_frame(ksig, regs, oldset); + signal_setup_done(err, ksig, 0); } static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs, @@ -490,10 +444,9 @@ static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs, */ static void do_signal(struct pt_regs *regs, unsigned long orig_i0) { - struct k_sigaction ka; + struct ksignal ksig; int restart_syscall; - siginfo_t info; - int signr; + bool has_handler; /* It's a lot of work and synchronization to add a new ptrace * register for GDB to save and restore in order to get @@ -516,7 +469,7 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0) if (pt_regs_is_syscall(regs) && (regs->psr & PSR_C)) regs->u_regs[UREG_G6] = orig_i0; - signr = get_signal_to_deliver(&info, &ka, regs, NULL); + has_handler = get_signal(&ksig); /* If the debugger messes with the program counter, it clears * the software "in syscall" bit, directing us to not perform @@ -528,35 +481,30 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0) orig_i0 = regs->u_regs[UREG_G6]; } - - if (signr > 0) { + if (has_handler) { if (restart_syscall) - syscall_restart(orig_i0, regs, &ka.sa); - handle_signal(signr, &ka, &info, regs); - return; - } - if (restart_syscall && - (regs->u_regs[UREG_I0] == ERESTARTNOHAND || - regs->u_regs[UREG_I0] == ERESTARTSYS || - regs->u_regs[UREG_I0] == ERESTARTNOINTR)) { - /* replay the system call when we are done */ - regs->u_regs[UREG_I0] = orig_i0; - regs->pc -= 4; - regs->npc -= 4; - pt_regs_clear_syscall(regs); - } - if (restart_syscall && - regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) { - regs->u_regs[UREG_G1] = __NR_restart_syscall; - regs->pc -= 4; - regs->npc -= 4; - pt_regs_clear_syscall(regs); + syscall_restart(orig_i0, regs, &ksig.ka.sa); + handle_signal(&ksig, regs); + } else { + if (restart_syscall) { + switch (regs->u_regs[UREG_I0]) { + case ERESTARTNOHAND: + case ERESTARTSYS: + case ERESTARTNOINTR: + /* replay the system call when we are done */ + regs->u_regs[UREG_I0] = orig_i0; + regs->pc -= 4; + regs->npc -= 4; + pt_regs_clear_syscall(regs); + case ERESTART_RESTARTBLOCK: + regs->u_regs[UREG_G1] = __NR_restart_syscall; + regs->pc -= 4; + regs->npc -= 4; + pt_regs_clear_syscall(regs); + } + } + restore_saved_sigmask(); } - - /* if there's no signal to deliver, we just put the saved sigmask - * back - */ - restore_saved_sigmask(); } void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0, @@ -570,9 +518,9 @@ void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0, } } -asmlinkage int -do_sys_sigstack(struct sigstack __user *ssptr, struct sigstack __user *ossptr, - unsigned long sp) +asmlinkage int do_sys_sigstack(struct sigstack __user *ssptr, + struct sigstack __user *ossptr, + unsigned long sp) { int ret = -EFAULT; diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c index 867de2f8189..1a699986803 100644 --- a/arch/sparc/kernel/signal_64.c +++ b/arch/sparc/kernel/signal_64.c @@ -23,6 +23,7 @@ #include <linux/tty.h> #include <linux/binfmts.h> #include <linux/bitops.h> +#include <linux/context_tracking.h> #include <asm/uaccess.h> #include <asm/ptrace.h> @@ -34,15 +35,17 @@ #include <asm/switch_to.h> #include <asm/cacheflush.h> -#include "entry.h" -#include "systbls.h" #include "sigutil.h" +#include "systbls.h" +#include "kernel.h" +#include "entry.h" /* {set, get}context() needed for 64-bit SparcLinux userland. */ asmlinkage void sparc64_set_context(struct pt_regs *regs) { struct ucontext __user *ucp = (struct ucontext __user *) regs->u_regs[UREG_I0]; + enum ctx_state prev_state = exception_enter(); mc_gregset_t __user *grp; unsigned long pc, npc, tstate; unsigned long fp, i7; @@ -129,16 +132,19 @@ asmlinkage void sparc64_set_context(struct pt_regs *regs) } if (err) goto do_sigsegv; - +out: + exception_exit(prev_state); return; do_sigsegv: force_sig(SIGSEGV, current); + goto out; } asmlinkage void sparc64_get_context(struct pt_regs *regs) { struct ucontext __user *ucp = (struct ucontext __user *) regs->u_regs[UREG_I0]; + enum ctx_state prev_state = exception_enter(); mc_gregset_t __user *grp; mcontext_t __user *mcp; unsigned long fp, i7; @@ -220,10 +226,12 @@ asmlinkage void sparc64_get_context(struct pt_regs *regs) } if (err) goto do_sigsegv; - +out: + exception_exit(prev_state); return; do_sigsegv: force_sig(SIGSEGV, current); + goto out; } struct rt_signal_frame { @@ -236,23 +244,6 @@ struct rt_signal_frame { __siginfo_rwin_t *rwin_save; }; -static long _sigpause_common(old_sigset_t set) -{ - sigset_t blocked; - siginitset(&blocked, set); - return sigsuspend(&blocked); -} - -asmlinkage long sys_sigpause(unsigned int set) -{ - return _sigpause_common(set); -} - -asmlinkage long sys_sigsuspend(old_sigset_t set) -{ - return _sigpause_common(set); -} - void do_rt_sigreturn(struct pt_regs *regs) { struct rt_signal_frame __user *sf; @@ -295,8 +286,7 @@ void do_rt_sigreturn(struct pt_regs *regs) err |= restore_fpu_state(regs, fpu_save); err |= __copy_from_user(&set, &sf->mask, sizeof(sigset_t)); - err |= do_sigaltstack(&sf->stack, NULL, (unsigned long)sf); - + err |= restore_altstack(&sf->stack); if (err) goto segv; @@ -326,7 +316,7 @@ static int invalid_frame_pointer(void __user *fp) return 0; } -static inline void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, unsigned long framesize) +static inline void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs, unsigned long framesize) { unsigned long sp = regs->u_regs[UREG_FP] + STACK_BIAS; @@ -338,12 +328,7 @@ static inline void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs * return (void __user *) -1L; /* This is the X/Open sanctioned signal stack switching. */ - if (ka->sa.sa_flags & SA_ONSTACK) { - if (sas_ss_flags(sp) == 0) - sp = current->sas_ss_sp + current->sas_ss_size; - } - - sp -= framesize; + sp = sigsp(sp, ksig) - framesize; /* Always align the stack frame. This handles two cases. First, * sigaltstack need not be mindful of platform specific stack @@ -357,8 +342,7 @@ static inline void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs * } static inline int -setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, - int signo, sigset_t *oldset, siginfo_t *info) +setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs) { struct rt_signal_frame __user *sf; int wsaved, err, sf_size; @@ -376,10 +360,12 @@ setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, if (wsaved) sf_size += sizeof(__siginfo_rwin_t); sf = (struct rt_signal_frame __user *) - get_sigframe(ka, regs, sf_size); + get_sigframe(ksig, regs, sf_size); - if (invalid_frame_pointer (sf)) - goto sigill; + if (invalid_frame_pointer (sf)) { + do_exit(SIGILL); /* won't return, actually */ + return -EINVAL; + } tail = (sf + 1); @@ -405,11 +391,9 @@ setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, } /* Setup sigaltstack */ - err |= __put_user(current->sas_ss_sp, &sf->stack.ss_sp); - err |= __put_user(sas_ss_flags(regs->u_regs[UREG_FP]), &sf->stack.ss_flags); - err |= __put_user(current->sas_ss_size, &sf->stack.ss_size); + err |= __save_altstack(&sf->stack, regs->u_regs[UREG_FP]); - err |= copy_to_user(&sf->mask, oldset, sizeof(sigset_t)); + err |= copy_to_user(&sf->mask, sigmask_to_save(), sizeof(sigset_t)); if (!wsaved) { err |= copy_in_user((u64 __user *)sf, @@ -422,18 +406,18 @@ setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, rp = ¤t_thread_info()->reg_window[wsaved - 1]; err |= copy_to_user(sf, rp, sizeof(struct reg_window)); } - if (info) - err |= copy_siginfo_to_user(&sf->info, info); + if (ksig->ka.sa.sa_flags & SA_SIGINFO) + err |= copy_siginfo_to_user(&sf->info, &ksig->info); else { - err |= __put_user(signo, &sf->info.si_signo); + err |= __put_user(ksig->sig, &sf->info.si_signo); err |= __put_user(SI_NOINFO, &sf->info.si_code); } if (err) - goto sigsegv; + return err; /* 3. signal handler back-trampoline and parameters */ regs->u_regs[UREG_FP] = ((unsigned long) sf) - STACK_BIAS; - regs->u_regs[UREG_I0] = signo; + regs->u_regs[UREG_I0] = ksig->sig; regs->u_regs[UREG_I1] = (unsigned long) &sf->info; /* The sigcontext is passed in this way because of how it @@ -443,37 +427,15 @@ setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs, regs->u_regs[UREG_I2] = (unsigned long) &sf->info; /* 5. signal handler */ - regs->tpc = (unsigned long) ka->sa.sa_handler; + regs->tpc = (unsigned long) ksig->ka.sa.sa_handler; regs->tnpc = (regs->tpc + 4); if (test_thread_flag(TIF_32BIT)) { regs->tpc &= 0xffffffff; regs->tnpc &= 0xffffffff; } /* 4. return to kernel instructions */ - regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer; + regs->u_regs[UREG_I7] = (unsigned long)ksig->ka.ka_restorer; return 0; - -sigill: - do_exit(SIGILL); - return -EINVAL; - -sigsegv: - force_sigsegv(signo, current); - return -EFAULT; -} - -static inline void handle_signal(unsigned long signr, struct k_sigaction *ka, - siginfo_t *info, - sigset_t *oldset, struct pt_regs *regs) -{ - int err; - - err = setup_rt_frame(ka, regs, signr, oldset, - (ka->sa.sa_flags & SA_SIGINFO) ? info : NULL); - if (err) - return; - - signal_delivered(signr, info, ka, regs, 0); } static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs, @@ -503,11 +465,9 @@ static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs, */ static void do_signal(struct pt_regs *regs, unsigned long orig_i0) { - struct k_sigaction ka; + struct ksignal ksig; int restart_syscall; - sigset_t *oldset = sigmask_to_save(); - siginfo_t info; - int signr; + bool has_handler; /* It's a lot of work and synchronization to add a new ptrace * register for GDB to save and restore in order to get @@ -533,13 +493,12 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0) #ifdef CONFIG_COMPAT if (test_thread_flag(TIF_32BIT)) { - extern void do_signal32(sigset_t *, struct pt_regs *); - do_signal32(oldset, regs); + do_signal32(regs); return; } #endif - signr = get_signal_to_deliver(&info, &ka, regs, NULL); + has_handler = get_signal(&ksig); restart_syscall = 0; if (pt_regs_is_syscall(regs) && @@ -548,43 +507,41 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0) orig_i0 = regs->u_regs[UREG_G6]; } - if (signr > 0) { + if (has_handler) { if (restart_syscall) - syscall_restart(orig_i0, regs, &ka.sa); - handle_signal(signr, &ka, &info, oldset, regs); - return; - } - if (restart_syscall && - (regs->u_regs[UREG_I0] == ERESTARTNOHAND || - regs->u_regs[UREG_I0] == ERESTARTSYS || - regs->u_regs[UREG_I0] == ERESTARTNOINTR)) { - /* replay the system call when we are done */ - regs->u_regs[UREG_I0] = orig_i0; - regs->tpc -= 4; - regs->tnpc -= 4; - pt_regs_clear_syscall(regs); - } - if (restart_syscall && - regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) { - regs->u_regs[UREG_G1] = __NR_restart_syscall; - regs->tpc -= 4; - regs->tnpc -= 4; - pt_regs_clear_syscall(regs); + syscall_restart(orig_i0, regs, &ksig.ka.sa); + signal_setup_done(setup_rt_frame(&ksig, regs), &ksig, 0); + } else { + if (restart_syscall) { + switch (regs->u_regs[UREG_I0]) { + case ERESTARTNOHAND: + case ERESTARTSYS: + case ERESTARTNOINTR: + /* replay the system call when we are done */ + regs->u_regs[UREG_I0] = orig_i0; + regs->tpc -= 4; + regs->tnpc -= 4; + pt_regs_clear_syscall(regs); + case ERESTART_RESTARTBLOCK: + regs->u_regs[UREG_G1] = __NR_restart_syscall; + regs->tpc -= 4; + regs->tnpc -= 4; + pt_regs_clear_syscall(regs); + } + } + restore_saved_sigmask(); } - - /* If there's no signal to deliver, we just put the saved sigmask - * back - */ - restore_saved_sigmask(); } void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0, unsigned long thread_info_flags) { + user_exit(); if (thread_info_flags & _TIF_SIGPENDING) do_signal(regs, orig_i0); if (thread_info_flags & _TIF_NOTIFY_RESUME) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(regs); } + user_enter(); } diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c index 79db45e5134..7958242d63c 100644 --- a/arch/sparc/kernel/smp_32.c +++ b/arch/sparc/kernel/smp_32.c @@ -20,6 +20,8 @@ #include <linux/seq_file.h> #include <linux/cache.h> #include <linux/delay.h> +#include <linux/profile.h> +#include <linux/cpu.h> #include <asm/ptrace.h> #include <linux/atomic.h> @@ -32,11 +34,13 @@ #include <asm/cacheflush.h> #include <asm/tlbflush.h> #include <asm/cpudata.h> +#include <asm/timer.h> #include <asm/leon.h> +#include "kernel.h" #include "irq.h" -volatile unsigned long cpu_callin_map[NR_CPUS] __cpuinitdata = {0,}; +volatile unsigned long cpu_callin_map[NR_CPUS] = {0,}; cpumask_t smp_commenced_mask = CPU_MASK_NONE; @@ -50,7 +54,7 @@ const struct sparc32_ipi_ops *sparc32_ipi_ops; * instruction which is much better... */ -void __cpuinit smp_store_cpu_info(int id) +void smp_store_cpu_info(int id) { int cpu_node; int mid; @@ -72,8 +76,6 @@ void __cpuinit smp_store_cpu_info(int id) void __init smp_cpus_done(unsigned int max_cpus) { - extern void smp4m_smp_done(void); - extern void smp4d_smp_done(void); unsigned long bogosum = 0; int cpu, num = 0; @@ -117,7 +119,7 @@ void cpu_panic(void) panic("SMP bolixed\n"); } -struct linux_prom_registers smp_penguin_ctable __cpuinitdata = { 0 }; +struct linux_prom_registers smp_penguin_ctable = { 0 }; void smp_send_reschedule(int cpu) { @@ -180,8 +182,6 @@ int setup_profiling_timer(unsigned int multiplier) void __init smp_prepare_cpus(unsigned int max_cpus) { - extern void __init smp4m_boot_cpus(void); - extern void __init smp4d_boot_cpus(void); int i, cpuid, extra; printk("Entering SMP Mode...\n"); @@ -256,10 +256,8 @@ void __init smp_prepare_boot_cpu(void) set_cpu_possible(cpuid, true); } -int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle) +int __cpu_up(unsigned int cpu, struct task_struct *tidle) { - extern int __cpuinit smp4m_boot_one_cpu(int, struct task_struct *); - extern int __cpuinit smp4d_boot_one_cpu(int, struct task_struct *); int ret=0; switch(sparc_cpu_model) { @@ -294,6 +292,89 @@ int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle) return ret; } +static void arch_cpu_pre_starting(void *arg) +{ + local_ops->cache_all(); + local_ops->tlb_all(); + + switch(sparc_cpu_model) { + case sun4m: + sun4m_cpu_pre_starting(arg); + break; + case sun4d: + sun4d_cpu_pre_starting(arg); + break; + case sparc_leon: + leon_cpu_pre_starting(arg); + break; + default: + BUG(); + } +} + +static void arch_cpu_pre_online(void *arg) +{ + unsigned int cpuid = hard_smp_processor_id(); + + register_percpu_ce(cpuid); + + calibrate_delay(); + smp_store_cpu_info(cpuid); + + local_ops->cache_all(); + local_ops->tlb_all(); + + switch(sparc_cpu_model) { + case sun4m: + sun4m_cpu_pre_online(arg); + break; + case sun4d: + sun4d_cpu_pre_online(arg); + break; + case sparc_leon: + leon_cpu_pre_online(arg); + break; + default: + BUG(); + } +} + +static void sparc_start_secondary(void *arg) +{ + unsigned int cpu; + + /* + * SMP booting is extremely fragile in some architectures. So run + * the cpu initialization code first before anything else. + */ + arch_cpu_pre_starting(arg); + + preempt_disable(); + cpu = smp_processor_id(); + + /* Invoke the CPU_STARTING notifier callbacks */ + notify_cpu_starting(cpu); + + arch_cpu_pre_online(arg); + + /* Set the CPU in the cpu_online_mask */ + set_cpu_online(cpu, true); + + /* Enable local interrupts now */ + local_irq_enable(); + + wmb(); + cpu_startup_entry(CPUHP_ONLINE); + + /* We should never reach here! */ + BUG(); +} + +void smp_callin(void) +{ + sparc_start_secondary(NULL); +} + void smp_bogo(struct seq_file *m) { int i; diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index d94b878577b..41aa2478f3c 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -25,6 +25,7 @@ #include <linux/ftrace.h> #include <linux/cpu.h> #include <linux/slab.h> +#include <linux/kgdb.h> #include <asm/head.h> #include <asm/ptrace.h> @@ -35,6 +36,7 @@ #include <asm/hvtramp.h> #include <asm/io.h> #include <asm/timer.h> +#include <asm/setup.h> #include <asm/irq.h> #include <asm/irq_regs.h> @@ -52,8 +54,7 @@ #include <asm/pcr.h> #include "cpumap.h" - -int sparc64_multi_core __read_mostly; +#include "kernel.h" DEFINE_PER_CPU(cpumask_t, cpu_sibling_map) = CPU_MASK_NONE; cpumask_t cpu_core_map[NR_CPUS] __read_mostly = @@ -87,7 +88,7 @@ extern void setup_sparc64_timer(void); static volatile unsigned long callin_flag = 0; -void __cpuinit smp_callin(void) +void smp_callin(void) { int cpuid = hard_smp_processor_id(); @@ -123,10 +124,13 @@ void __cpuinit smp_callin(void) rmb(); set_cpu_online(cpuid, true); - local_irq_enable(); /* idle thread is expected to have preempt disabled */ preempt_disable(); + + local_irq_enable(); + + cpu_startup_entry(CPUHP_ONLINE); } void cpu_panic(void) @@ -148,7 +152,7 @@ void cpu_panic(void) #define NUM_ROUNDS 64 /* magic value */ #define NUM_ITERS 5 /* likewise */ -static DEFINE_SPINLOCK(itc_sync_lock); +static DEFINE_RAW_SPINLOCK(itc_sync_lock); static unsigned long go[SLAVE + 1]; #define DEBUG_TICK_SYNC 0 @@ -256,7 +260,7 @@ static void smp_synchronize_one_tick(int cpu) go[MASTER] = 0; membar_safe("#StoreLoad"); - spin_lock_irqsave(&itc_sync_lock, flags); + raw_spin_lock_irqsave(&itc_sync_lock, flags); { for (i = 0; i < NUM_ROUNDS*NUM_ITERS; i++) { while (!go[MASTER]) @@ -267,19 +271,12 @@ static void smp_synchronize_one_tick(int cpu) membar_safe("#StoreLoad"); } } - spin_unlock_irqrestore(&itc_sync_lock, flags); + raw_spin_unlock_irqrestore(&itc_sync_lock, flags); } #if defined(CONFIG_SUN_LDOMS) && defined(CONFIG_HOTPLUG_CPU) -/* XXX Put this in some common place. XXX */ -static unsigned long kimage_addr_to_ra(void *p) -{ - unsigned long val = (unsigned long) p; - - return kern_base + (val - KERNBASE); -} - -static void __cpuinit ldom_startcpu_cpuid(unsigned int cpu, unsigned long thread_reg, void **descrp) +static void ldom_startcpu_cpuid(unsigned int cpu, unsigned long thread_reg, + void **descrp) { extern unsigned long sparc64_ttable_tl0; extern unsigned long kern_locked_tte_data; @@ -340,7 +337,7 @@ extern unsigned long sparc64_cpu_startup; */ static struct thread_info *cpu_new_thread = NULL; -static int __cpuinit smp_boot_one_cpu(unsigned int cpu, struct task_struct *idle) +static int smp_boot_one_cpu(unsigned int cpu, struct task_struct *idle) { unsigned long entry = (unsigned long)(&sparc64_cpu_startup); @@ -849,7 +846,7 @@ void smp_tsb_sync(struct mm_struct *mm) } extern unsigned long xcall_flush_tlb_mm; -extern unsigned long xcall_flush_tlb_pending; +extern unsigned long xcall_flush_tlb_page; extern unsigned long xcall_flush_tlb_kernel_range; extern unsigned long xcall_fetch_glob_regs; extern unsigned long xcall_fetch_glob_pmu; @@ -865,11 +862,6 @@ extern unsigned long xcall_flush_dcache_page_cheetah; #endif extern unsigned long xcall_flush_dcache_page_spitfire; -#ifdef CONFIG_DEBUG_DCFLUSH -extern atomic_t dcpage_flushes; -extern atomic_t dcpage_flushes_xcall; -#endif - static inline void __local_flush_dcache_page(struct page *page) { #ifdef DCACHE_ALIASING_POSSIBLE @@ -1074,23 +1066,56 @@ local_flush_and_out: put_cpu(); } +struct tlb_pending_info { + unsigned long ctx; + unsigned long nr; + unsigned long *vaddrs; +}; + +static void tlb_pending_func(void *info) +{ + struct tlb_pending_info *t = info; + + __flush_tlb_pending(t->ctx, t->nr, t->vaddrs); +} + void smp_flush_tlb_pending(struct mm_struct *mm, unsigned long nr, unsigned long *vaddrs) { u32 ctx = CTX_HWBITS(mm->context); + struct tlb_pending_info info; int cpu = get_cpu(); + info.ctx = ctx; + info.nr = nr; + info.vaddrs = vaddrs; + if (mm == current->mm && atomic_read(&mm->mm_users) == 1) cpumask_copy(mm_cpumask(mm), cpumask_of(cpu)); else - smp_cross_call_masked(&xcall_flush_tlb_pending, - ctx, nr, (unsigned long) vaddrs, - mm_cpumask(mm)); + smp_call_function_many(mm_cpumask(mm), tlb_pending_func, + &info, 1); __flush_tlb_pending(ctx, nr, vaddrs); put_cpu(); } +void smp_flush_tlb_page(struct mm_struct *mm, unsigned long vaddr) +{ + unsigned long context = CTX_HWBITS(mm->context); + int cpu = get_cpu(); + + if (mm == current->mm && atomic_read(&mm->mm_users) == 1) + cpumask_copy(mm_cpumask(mm), cpumask_of(cpu)); + else + smp_cross_call_masked(&xcall_flush_tlb_page, + context, vaddr, 0, + mm_cpumask(mm)); + __flush_tlb_page(context, vaddr); + + put_cpu(); +} + void smp_flush_tlb_kernel_range(unsigned long start, unsigned long end) { start &= PAGE_MASK; @@ -1180,7 +1205,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus) { } -void __devinit smp_prepare_boot_cpu(void) +void smp_prepare_boot_cpu(void) { } @@ -1194,7 +1219,7 @@ void __init smp_setup_processor_id(void) xcall_deliver_impl = hypervisor_xcall_deliver; } -void __devinit smp_fill_in_sib_core_maps(void) +void smp_fill_in_sib_core_maps(void) { unsigned int i; @@ -1231,7 +1256,7 @@ void __devinit smp_fill_in_sib_core_maps(void) } } -int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle) +int __cpu_up(unsigned int cpu, struct task_struct *tidle) { int ret = smp_boot_one_cpu(cpu, tidle); @@ -1363,8 +1388,13 @@ void __init smp_cpus_done(unsigned int max_cpus) void smp_send_reschedule(int cpu) { - xcall_deliver((u64) &xcall_receive_signal, 0, 0, - cpumask_of(cpu)); + if (cpu == smp_processor_id()) { + WARN_ON_ONCE(preemptible()); + set_softint(1 << PIL_SMP_RECEIVE_SIGNAL); + } else { + xcall_deliver((u64) &xcall_receive_signal, + 0, 0, cpumask_of(cpu)); + } } void __irq_entry smp_receive_signal_client(int irq, struct pt_regs *regs) diff --git a/arch/sparc/kernel/sparc_ksyms_32.c b/arch/sparc/kernel/sparc_ksyms_32.c index e521c54560f..bf4ccb10a78 100644 --- a/arch/sparc/kernel/sparc_ksyms_32.c +++ b/arch/sparc/kernel/sparc_ksyms_32.c @@ -6,7 +6,6 @@ */ #include <linux/module.h> -#include <linux/init.h> #include <asm/pgtable.h> #include <asm/uaccess.h> diff --git a/arch/sparc/kernel/sparc_ksyms_64.c b/arch/sparc/kernel/sparc_ksyms_64.c index 9f5e24ddcc7..a92d5d2c46a 100644 --- a/arch/sparc/kernel/sparc_ksyms_64.c +++ b/arch/sparc/kernel/sparc_ksyms_64.c @@ -7,7 +7,6 @@ #include <linux/export.h> #include <linux/pci.h> -#include <linux/init.h> #include <linux/bitops.h> #include <asm/cpudata.h> diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c index e490ac9327c..a1bb2675b28 100644 --- a/arch/sparc/kernel/sun4d_irq.c +++ b/arch/sparc/kernel/sun4d_irq.c @@ -6,6 +6,7 @@ */ #include <linux/kernel_stat.h> +#include <linux/slab.h> #include <linux/seq_file.h> #include <asm/timer.h> @@ -142,7 +143,7 @@ static void sun4d_sbus_handler_irq(int sbusl) } } -void sun4d_handler_irq(int pil, struct pt_regs *regs) +void sun4d_handler_irq(unsigned int pil, struct pt_regs *regs) { struct pt_regs *old_regs; /* SBUS IRQ level (1 - 7) */ @@ -235,7 +236,7 @@ static void sun4d_shutdown_irq(struct irq_data *data) irq_unlink(data->irq); } -struct irq_chip sun4d_irq = { +static struct irq_chip sun4d_irq = { .name = "sun4d", .irq_startup = sun4d_startup_irq, .irq_shutdown = sun4d_shutdown_irq, @@ -284,9 +285,9 @@ static void __init sun4d_load_profile_irqs(void) } } -unsigned int _sun4d_build_device_irq(unsigned int real_irq, - unsigned int pil, - unsigned int board) +static unsigned int _sun4d_build_device_irq(unsigned int real_irq, + unsigned int pil, + unsigned int board) { struct sun4d_handler_data *handler_data; unsigned int irq; @@ -319,8 +320,8 @@ err_out: -unsigned int sun4d_build_device_irq(struct platform_device *op, - unsigned int real_irq) +static unsigned int sun4d_build_device_irq(struct platform_device *op, + unsigned int real_irq) { struct device_node *dp = op->dev.of_node; struct device_node *board_parent, *bus = dp->parent; @@ -382,7 +383,8 @@ err_out: return irq; } -unsigned int sun4d_build_timer_irq(unsigned int board, unsigned int real_irq) +static unsigned int sun4d_build_timer_irq(unsigned int board, + unsigned int real_irq) { return _sun4d_build_device_irq(real_irq, real_irq, board); } diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c index ddaea31de58..d5c319553fd 100644 --- a/arch/sparc/kernel/sun4d_smp.c +++ b/arch/sparc/kernel/sun4d_smp.c @@ -50,10 +50,9 @@ static inline void show_leds(int cpuid) "i" (ASI_M_CTL)); } -void __cpuinit smp4d_callin(void) +void sun4d_cpu_pre_starting(void *arg) { int cpuid = hard_smp_processor_id(); - unsigned long flags; /* Show we are alive */ cpu_leds[cpuid] = 0x6; @@ -61,26 +60,20 @@ void __cpuinit smp4d_callin(void) /* Enable level15 interrupt, disable level14 interrupt for now */ cc_set_imsk((cc_get_imsk() & ~0x8000) | 0x4000); +} - local_ops->cache_all(); - local_ops->tlb_all(); +void sun4d_cpu_pre_online(void *arg) +{ + unsigned long flags; + int cpuid; - notify_cpu_starting(cpuid); - /* - * Unblock the master CPU _only_ when the scheduler state + cpuid = hard_smp_processor_id(); + + /* Unblock the master CPU _only_ when the scheduler state * of all secondary CPUs will be up-to-date, so after * the SMP initialization the master will be just allowed * to call the scheduler code. */ - /* Get our local ticker going. */ - register_percpu_ce(cpuid); - - calibrate_delay(); - smp_store_cpu_info(cpuid); - local_ops->cache_all(); - local_ops->tlb_all(); - - /* Allow master to continue. */ sun4d_swap((unsigned long *)&cpu_callin_map[cpuid], 1); local_ops->cache_all(); local_ops->tlb_all(); @@ -106,16 +99,12 @@ void __cpuinit smp4d_callin(void) local_ops->cache_all(); local_ops->tlb_all(); - local_irq_enable(); /* We don't allow PIL 14 yet */ - while (!cpumask_test_cpu(cpuid, &smp_commenced_mask)) barrier(); spin_lock_irqsave(&sun4d_imsk_lock, flags); cc_set_imsk(cc_get_imsk() & ~0x4000); /* Allow PIL 14 as well */ spin_unlock_irqrestore(&sun4d_imsk_lock, flags); - set_cpu_online(cpuid, true); - } /* @@ -129,7 +118,7 @@ void __init smp4d_boot_cpus(void) local_ops->cache_all(); } -int __cpuinit smp4d_boot_one_cpu(int i, struct task_struct *idle) +int smp4d_boot_one_cpu(int i, struct task_struct *idle) { unsigned long *entry = &sun4d_cpu_startup; int timeout; diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c index c5ade9d27a1..8bb3b3fddea 100644 --- a/arch/sparc/kernel/sun4m_irq.c +++ b/arch/sparc/kernel/sun4m_irq.c @@ -9,6 +9,8 @@ * Copyright (C) 1996 Dave Redman (djhr@tadpole.co.uk) */ +#include <linux/slab.h> + #include <asm/timer.h> #include <asm/traps.h> #include <asm/pgalloc.h> diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c index 128af730428..d3408e72d20 100644 --- a/arch/sparc/kernel/sun4m_smp.c +++ b/arch/sparc/kernel/sun4m_smp.c @@ -34,30 +34,19 @@ swap_ulong(volatile unsigned long *ptr, unsigned long val) return val; } -void __cpuinit smp4m_callin(void) +void sun4m_cpu_pre_starting(void *arg) { - int cpuid = hard_smp_processor_id(); - - local_ops->cache_all(); - local_ops->tlb_all(); - - notify_cpu_starting(cpuid); - - register_percpu_ce(cpuid); - - calibrate_delay(); - smp_store_cpu_info(cpuid); +} - local_ops->cache_all(); - local_ops->tlb_all(); +void sun4m_cpu_pre_online(void *arg) +{ + int cpuid = hard_smp_processor_id(); - /* - * Unblock the master CPU _only_ when the scheduler state - * of all secondary CPUs will be up-to-date, so after - * the SMP initialization the master will be just allowed - * to call the scheduler code. + /* Allow master to continue. The master will then give us the + * go-ahead by setting the smp_commenced_mask and will wait without + * timeouts until our setup is completed fully (signified by + * our bit being set in the cpu_online_mask). */ - /* Allow master to continue. */ swap_ulong(&cpu_callin_map[cpuid], 1); /* XXX: What's up with all the flushes? */ @@ -75,10 +64,6 @@ void __cpuinit smp4m_callin(void) while (!cpumask_test_cpu(cpuid, &smp_commenced_mask)) mb(); - - local_irq_enable(); - - set_cpu_online(cpuid, true); } /* @@ -90,7 +75,7 @@ void __init smp4m_boot_cpus(void) local_ops->cache_all(); } -int __cpuinit smp4m_boot_one_cpu(int i, struct task_struct *idle) +int smp4m_boot_one_cpu(int i, struct task_struct *idle) { unsigned long *entry = &sun4m_cpu_startup; int timeout; diff --git a/arch/sparc/kernel/sun4v_tlb_miss.S b/arch/sparc/kernel/sun4v_tlb_miss.S index bde867fd71e..e0c09bf8561 100644 --- a/arch/sparc/kernel/sun4v_tlb_miss.S +++ b/arch/sparc/kernel/sun4v_tlb_miss.S @@ -182,7 +182,7 @@ sun4v_tsb_miss_common: cmp %g5, -1 be,pt %xcc, 80f nop - COMPUTE_TSB_PTR(%g5, %g4, HPAGE_SHIFT, %g2, %g7) + COMPUTE_TSB_PTR(%g5, %g4, REAL_HPAGE_SHIFT, %g2, %g7) /* That clobbered %g2, reload it. */ ldxa [%g0] ASI_SCRATCHPAD, %g2 diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S index 44025f4ba41..f834224208e 100644 --- a/arch/sparc/kernel/sys32.S +++ b/arch/sparc/kernel/sys32.S @@ -36,108 +36,19 @@ STUB: sra REG1, 0, REG1; \ jmpl %g1 + %lo(SYSCALL), %g0; \ sra REG3, 0, REG3 -#define SIGN4(STUB,SYSCALL,REG1,REG2,REG3,REG4) \ - .align 32; \ - .globl STUB; \ -STUB: sra REG1, 0, REG1; \ - sethi %hi(SYSCALL), %g1; \ - sra REG2, 0, REG2; \ - sra REG3, 0, REG3; \ - jmpl %g1 + %lo(SYSCALL), %g0; \ - sra REG4, 0, REG4 - -SIGN1(sys32_exit, sparc_exit, %o0) -SIGN1(sys32_exit_group, sys_exit_group, %o0) -SIGN1(sys32_wait4, compat_sys_wait4, %o2) -SIGN1(sys32_creat, sys_creat, %o1) -SIGN1(sys32_mknod, sys_mknod, %o1) -SIGN1(sys32_umount, sys_umount, %o1) -SIGN1(sys32_signal, sys_signal, %o0) -SIGN1(sys32_access, sys_access, %o1) -SIGN1(sys32_msync, sys_msync, %o2) -SIGN2(sys32_reboot, sys_reboot, %o0, %o1) -SIGN1(sys32_setitimer, compat_sys_setitimer, %o0) -SIGN1(sys32_getitimer, compat_sys_getitimer, %o0) -SIGN1(sys32_sethostname, sys_sethostname, %o1) -SIGN1(sys32_swapon, sys_swapon, %o1) -SIGN1(sys32_sigaction, compat_sys_sigaction, %o0) -SIGN1(sys32_rt_sigaction, compat_sys_rt_sigaction, %o0) -SIGN1(sys32_sigprocmask, compat_sys_sigprocmask, %o0) -SIGN1(sys32_rt_sigprocmask, compat_sys_rt_sigprocmask, %o0) -SIGN2(sys32_rt_sigqueueinfo, compat_sys_rt_sigqueueinfo, %o0, %o1) -SIGN1(sys32_getrusage, compat_sys_getrusage, %o0) -SIGN1(sys32_setxattr, sys_setxattr, %o4) -SIGN1(sys32_lsetxattr, sys_lsetxattr, %o4) -SIGN1(sys32_fsetxattr, sys_fsetxattr, %o4) -SIGN1(sys32_fgetxattr, sys_fgetxattr, %o0) -SIGN1(sys32_flistxattr, sys_flistxattr, %o0) -SIGN1(sys32_fremovexattr, sys_fremovexattr, %o0) -SIGN2(sys32_tkill, sys_tkill, %o0, %o1) -SIGN1(sys32_epoll_create, sys_epoll_create, %o0) -SIGN3(sys32_epoll_ctl, sys_epoll_ctl, %o0, %o1, %o2) -SIGN3(sys32_epoll_wait, sys_epoll_wait, %o0, %o2, %o3) SIGN1(sys32_readahead, compat_sys_readahead, %o0) SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4) SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5) -SIGN2(sys32_bdflush, sys_bdflush, %o0, %o1) -SIGN1(sys32_mlockall, sys_mlockall, %o0) SIGN1(sys32_clock_nanosleep, compat_sys_clock_nanosleep, %o1) SIGN1(sys32_timer_settime, compat_sys_timer_settime, %o1) SIGN1(sys32_io_submit, compat_sys_io_submit, %o1) SIGN1(sys32_mq_open, compat_sys_mq_open, %o1) SIGN1(sys32_select, compat_sys_select, %o0) -SIGN1(sys32_mkdir, sys_mkdir, %o1) -SIGN3(sys32_futex, compat_sys_futex, %o1, %o2, %o5) -SIGN1(sys32_sysfs, compat_sys_sysfs, %o0) -SIGN2(sys32_sendfile, compat_sys_sendfile, %o0, %o1) -SIGN2(sys32_sendfile64, sys_sendfile, %o0, %o1) -SIGN1(sys32_prctl, sys_prctl, %o0) -SIGN1(sys32_sched_rr_get_interval, compat_sys_sched_rr_get_interval, %o0) -SIGN2(sys32_waitpid, sys_waitpid, %o0, %o2) -SIGN1(sys32_getgroups, sys_getgroups, %o0) -SIGN1(sys32_getpgid, sys_getpgid, %o0) -SIGN2(sys32_getpriority, sys_getpriority, %o0, %o1) -SIGN1(sys32_getsid, sys_getsid, %o0) -SIGN2(sys32_kill, sys_kill, %o0, %o1) -SIGN1(sys32_nice, sys_nice, %o0) -SIGN1(sys32_lseek, sys_lseek, %o1) -SIGN2(sys32_open, sparc32_open, %o1, %o2) -SIGN1(sys32_readlink, sys_readlink, %o2) -SIGN1(sys32_sched_get_priority_max, sys_sched_get_priority_max, %o0) -SIGN1(sys32_sched_get_priority_min, sys_sched_get_priority_min, %o0) -SIGN1(sys32_sched_getparam, sys_sched_getparam, %o0) -SIGN1(sys32_sched_getscheduler, sys_sched_getscheduler, %o0) -SIGN1(sys32_sched_setparam, sys_sched_setparam, %o0) -SIGN2(sys32_sched_setscheduler, sys_sched_setscheduler, %o0, %o1) -SIGN1(sys32_getdomainname, sys_getdomainname, %o1) -SIGN1(sys32_setdomainname, sys_setdomainname, %o1) -SIGN1(sys32_setgroups, sys_setgroups, %o0) -SIGN2(sys32_setpgid, sys_setpgid, %o0, %o1) -SIGN3(sys32_setpriority, sys_setpriority, %o0, %o1, %o2) -SIGN1(sys32_ssetmask, sys_ssetmask, %o0) -SIGN2(sys32_syslog, sys_syslog, %o0, %o2) -SIGN1(sys32_umask, sys_umask, %o0) -SIGN3(sys32_tgkill, sys_tgkill, %o0, %o1, %o2) -SIGN1(sys32_sendto, sys_sendto, %o0) +SIGN1(sys32_futex, compat_sys_futex, %o1) SIGN1(sys32_recvfrom, compat_sys_recvfrom, %o0) -SIGN3(sys32_socket, sys_socket, %o0, %o1, %o2) -SIGN2(sys32_connect, sys_connect, %o0, %o2) -SIGN2(sys32_bind, sys_bind, %o0, %o2) -SIGN2(sys32_listen, sys_listen, %o0, %o1) SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0) SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0) -SIGN2(sys32_shutdown, sys_shutdown, %o0, %o1) -SIGN3(sys32_socketpair, sys_socketpair, %o0, %o1, %o2) -SIGN1(sys32_getpeername, sys_getpeername, %o0) -SIGN1(sys32_getsockname, sys_getsockname, %o0) -SIGN2(sys32_ioprio_get, sys_ioprio_get, %o0, %o1) -SIGN3(sys32_ioprio_set, sys_ioprio_set, %o0, %o1, %o2) -SIGN2(sys32_splice, sys_splice, %o0, %o2) -SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5) -SIGN2(sys32_tee, sys_tee, %o0, %o1) -SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0) -SIGN1(sys32_truncate, sys_truncate, %o1) -SIGN1(sys32_ftruncate, sys_ftruncate, %o1) +SIGN2(sys32_renameat2, sys_renameat2, %o0, %o2) .globl sys32_mmap2 sys32_mmap2: @@ -329,15 +240,6 @@ do_sys_accept4: /* sys_accept4(int, struct sockaddr *, int *, int) */ nop nop - .globl sys32_fanotify_mark -sys32_fanotify_mark: - sethi %hi(sys_fanotify_mark), %g1 - sllx %o2, 32, %o2 - or %o2, %o3, %o2 - mov %o4, %o3 - jmpl %g1 + %lo(sys_fanotify_mark), %g0 - mov %o5, %o4 - .section __ex_table,"a" .align 4 .word 1b, __retl_efault, 2b, __retl_efault diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c index c3239811a1b..022c30c72eb 100644 --- a/arch/sparc/kernel/sys_sparc32.c +++ b/arch/sparc/kernel/sys_sparc32.c @@ -49,70 +49,7 @@ #include <asm/mmu_context.h> #include <asm/compat_signal.h> -#ifdef CONFIG_SYSVIPC -asmlinkage long compat_sys_ipc(u32 call, u32 first, u32 second, u32 third, compat_uptr_t ptr, u32 fifth) -{ - int version; - - version = call >> 16; /* hack for backward compatibility */ - call &= 0xffff; - - switch (call) { - case SEMTIMEDOP: - if (fifth) - /* sign extend semid */ - return compat_sys_semtimedop((int)first, - compat_ptr(ptr), second, - compat_ptr(fifth)); - /* else fall through for normal semop() */ - case SEMOP: - /* struct sembuf is the same on 32 and 64bit :)) */ - /* sign extend semid */ - return sys_semtimedop((int)first, compat_ptr(ptr), second, - NULL); - case SEMGET: - /* sign extend key, nsems */ - return sys_semget((int)first, (int)second, third); - case SEMCTL: - /* sign extend semid, semnum */ - return compat_sys_semctl((int)first, (int)second, third, - compat_ptr(ptr)); - - case MSGSND: - /* sign extend msqid */ - return compat_sys_msgsnd((int)first, (int)second, third, - compat_ptr(ptr)); - case MSGRCV: - /* sign extend msqid, msgtyp */ - return compat_sys_msgrcv((int)first, second, (int)fifth, - third, version, compat_ptr(ptr)); - case MSGGET: - /* sign extend key */ - return sys_msgget((int)first, second); - case MSGCTL: - /* sign extend msqid */ - return compat_sys_msgctl((int)first, second, compat_ptr(ptr)); - - case SHMAT: - /* sign extend shmid */ - return compat_sys_shmat((int)first, second, third, version, - compat_ptr(ptr)); - case SHMDT: - return sys_shmdt(compat_ptr(ptr)); - case SHMGET: - /* sign extend key_t */ - return sys_shmget((int)first, second, third); - case SHMCTL: - /* sign extend shmid */ - return compat_sys_shmctl((int)first, second, compat_ptr(ptr)); - - default: - return -ENOSYS; - } - - return -ENOSYS; -} -#endif +#include "systbls.h" asmlinkage long sys32_truncate64(const char __user * path, unsigned long high, unsigned long low) { @@ -206,147 +143,19 @@ asmlinkage long compat_sys_fstatat64(unsigned int dfd, return cp_compat_stat64(&stat, statbuf); } -asmlinkage long compat_sys_sysfs(int option, u32 arg1, u32 arg2) -{ - return sys_sysfs(option, arg1, arg2); -} - -asmlinkage long compat_sys_sched_rr_get_interval(compat_pid_t pid, struct compat_timespec __user *interval) -{ - struct timespec t; - int ret; - mm_segment_t old_fs = get_fs (); - - set_fs (KERNEL_DS); - ret = sys_sched_rr_get_interval(pid, (struct timespec __user *) &t); - set_fs (old_fs); - if (put_compat_timespec(&t, interval)) - return -EFAULT; - return ret; -} - -asmlinkage long compat_sys_rt_sigprocmask(int how, - compat_sigset_t __user *set, - compat_sigset_t __user *oset, - compat_size_t sigsetsize) -{ - sigset_t s; - compat_sigset_t s32; - int ret; - mm_segment_t old_fs = get_fs(); - - if (set) { - if (copy_from_user (&s32, set, sizeof(compat_sigset_t))) - return -EFAULT; - switch (_NSIG_WORDS) { - case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32); - case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32); - case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32); - case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32); - } - } - set_fs (KERNEL_DS); - ret = sys_rt_sigprocmask(how, - set ? (sigset_t __user *) &s : NULL, - oset ? (sigset_t __user *) &s : NULL, - sigsetsize); - set_fs (old_fs); - if (ret) return ret; - if (oset) { - switch (_NSIG_WORDS) { - case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3]; - case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2]; - case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1]; - case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0]; - } - if (copy_to_user (oset, &s32, sizeof(compat_sigset_t))) - return -EFAULT; - } - return 0; -} - -asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set, - compat_size_t sigsetsize) +COMPAT_SYSCALL_DEFINE3(sparc_sigaction, int, sig, + struct compat_old_sigaction __user *,act, + struct compat_old_sigaction __user *,oact) { - sigset_t s; - compat_sigset_t s32; - int ret; - mm_segment_t old_fs = get_fs(); - - set_fs (KERNEL_DS); - ret = sys_rt_sigpending((sigset_t __user *) &s, sigsetsize); - set_fs (old_fs); - if (!ret) { - switch (_NSIG_WORDS) { - case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3]; - case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2]; - case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1]; - case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0]; - } - if (copy_to_user (set, &s32, sizeof(compat_sigset_t))) - return -EFAULT; - } - return ret; -} - -asmlinkage long compat_sys_rt_sigqueueinfo(int pid, int sig, - struct compat_siginfo __user *uinfo) -{ - siginfo_t info; - int ret; - mm_segment_t old_fs = get_fs(); - - if (copy_siginfo_from_user32(&info, uinfo)) - return -EFAULT; - - set_fs (KERNEL_DS); - ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *) &info); - set_fs (old_fs); - return ret; -} - -asmlinkage long compat_sys_sigaction(int sig, struct old_sigaction32 __user *act, - struct old_sigaction32 __user *oact) -{ - struct k_sigaction new_ka, old_ka; - int ret; - WARN_ON_ONCE(sig >= 0); - sig = -sig; - - if (act) { - compat_old_sigset_t mask; - u32 u_handler, u_restorer; - - ret = get_user(u_handler, &act->sa_handler); - new_ka.sa.sa_handler = compat_ptr(u_handler); - ret |= __get_user(u_restorer, &act->sa_restorer); - new_ka.sa.sa_restorer = compat_ptr(u_restorer); - ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags); - ret |= __get_user(mask, &act->sa_mask); - if (ret) - return ret; - new_ka.ka_restorer = NULL; - siginitset(&new_ka.sa.sa_mask, mask); - } - - ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); - - if (!ret && oact) { - ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler); - ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer); - ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags); - ret |= __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask); - } - - return ret; + return compat_sys_sigaction(-sig, act, oact); } -asmlinkage long compat_sys_rt_sigaction(int sig, - struct sigaction32 __user *act, - struct sigaction32 __user *oact, - void __user *restorer, - compat_size_t sigsetsize) +COMPAT_SYSCALL_DEFINE5(rt_sigaction, int, sig, + struct compat_sigaction __user *,act, + struct compat_sigaction __user *,oact, + void __user *,restorer, + compat_size_t,sigsetsize) { struct k_sigaction new_ka, old_ka; int ret; @@ -362,15 +171,10 @@ asmlinkage long compat_sys_rt_sigaction(int sig, new_ka.ka_restorer = restorer; ret = get_user(u_handler, &act->sa_handler); new_ka.sa.sa_handler = compat_ptr(u_handler); - ret |= __copy_from_user(&set32, &act->sa_mask, sizeof(compat_sigset_t)); - switch (_NSIG_WORDS) { - case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6] | (((long)set32.sig[7]) << 32); - case 3: new_ka.sa.sa_mask.sig[2] = set32.sig[4] | (((long)set32.sig[5]) << 32); - case 2: new_ka.sa.sa_mask.sig[1] = set32.sig[2] | (((long)set32.sig[3]) << 32); - case 1: new_ka.sa.sa_mask.sig[0] = set32.sig[0] | (((long)set32.sig[1]) << 32); - } - ret |= __get_user(new_ka.sa.sa_flags, &act->sa_flags); - ret |= __get_user(u_restorer, &act->sa_restorer); + ret |= copy_from_user(&set32, &act->sa_mask, sizeof(compat_sigset_t)); + sigset_from_compat(&new_ka.sa.sa_mask, &set32); + ret |= get_user(new_ka.sa.sa_flags, &act->sa_flags); + ret |= get_user(u_restorer, &act->sa_restorer); new_ka.sa.sa_restorer = compat_ptr(u_restorer); if (ret) return -EFAULT; @@ -379,16 +183,11 @@ asmlinkage long compat_sys_rt_sigaction(int sig, ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); if (!ret && oact) { - switch (_NSIG_WORDS) { - case 4: set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32); set32.sig[6] = old_ka.sa.sa_mask.sig[3]; - case 3: set32.sig[5] = (old_ka.sa.sa_mask.sig[2] >> 32); set32.sig[4] = old_ka.sa.sa_mask.sig[2]; - case 2: set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32); set32.sig[2] = old_ka.sa.sa_mask.sig[1]; - case 1: set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32); set32.sig[0] = old_ka.sa.sa_mask.sig[0]; - } + sigset_to_compat(&set32, &old_ka.sa.sa_mask); ret = put_user(ptr_to_compat(old_ka.sa.sa_handler), &oact->sa_handler); - ret |= __copy_to_user(&oact->sa_mask, &set32, sizeof(compat_sigset_t)); - ret |= __put_user(old_ka.sa.sa_flags, &oact->sa_flags); - ret |= __put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer); + ret |= copy_to_user(&oact->sa_mask, &set32, sizeof(compat_sigset_t)); + ret |= put_user(old_ka.sa.sa_flags, &oact->sa_flags); + ret |= put_user(ptr_to_compat(old_ka.sa.sa_restorer), &oact->sa_restorer); if (ret) ret = -EFAULT; } @@ -396,71 +195,6 @@ asmlinkage long compat_sys_rt_sigaction(int sig, return ret; } -/* - * sparc32_execve() executes a new program after the asm stub has set - * things up for us. This should basically do what I want it to. - */ -asmlinkage long sparc32_execve(struct pt_regs *regs) -{ - int error, base = 0; - struct filename *filename; - - /* User register window flush is done by entry.S */ - - /* Check for indirect call. */ - if ((u32)regs->u_regs[UREG_G1] == 0) - base = 1; - - filename = getname(compat_ptr(regs->u_regs[base + UREG_I0])); - error = PTR_ERR(filename); - if (IS_ERR(filename)) - goto out; - - error = compat_do_execve(filename->name, - compat_ptr(regs->u_regs[base + UREG_I1]), - compat_ptr(regs->u_regs[base + UREG_I2]), regs); - - putname(filename); - - if (!error) { - fprs_write(0); - current_thread_info()->xfsr[0] = 0; - current_thread_info()->fpsaved[0] = 0; - regs->tstate &= ~TSTATE_PEF; - } -out: - return error; -} - -#ifdef CONFIG_MODULES - -asmlinkage long sys32_init_module(void __user *umod, u32 len, - const char __user *uargs) -{ - return sys_init_module(umod, len, uargs); -} - -asmlinkage long sys32_delete_module(const char __user *name_user, - unsigned int flags) -{ - return sys_delete_module(name_user, flags); -} - -#else /* CONFIG_MODULES */ - -asmlinkage long sys32_init_module(const char __user *name_user, - struct module __user *mod_user) -{ - return -ENOSYS; -} - -asmlinkage long sys32_delete_module(const char __user *name_user) -{ - return -ENOSYS; -} - -#endif /* CONFIG_MODULES */ - asmlinkage compat_ssize_t sys32_pread64(unsigned int fd, char __user *ubuf, compat_size_t count, @@ -506,25 +240,7 @@ long compat_sys_fadvise64_64(int fd, advice); } -/* This is just a version for 32-bit applications which does - * not force O_LARGEFILE on. - */ - -asmlinkage long sparc32_open(const char __user *filename, - int flags, int mode) -{ - return do_sys_open(AT_FDCWD, filename, flags, mode); -} - -long sys32_lookup_dcookie(unsigned long cookie_high, - unsigned long cookie_low, - char __user *buf, size_t len) -{ - return sys_lookup_dcookie((cookie_high << 32) | cookie_low, - buf, len); -} - -long compat_sync_file_range(int fd, unsigned long off_high, unsigned long off_low, unsigned long nb_high, unsigned long nb_low, int flags) +long sys32_sync_file_range(unsigned int fd, unsigned long off_high, unsigned long off_low, unsigned long nb_high, unsigned long nb_low, unsigned int flags) { return sys_sync_file_range(fd, (off_high << 32) | off_low, diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c index 0c9b31b22e0..646988d4c1a 100644 --- a/arch/sparc/kernel/sys_sparc_32.c +++ b/arch/sparc/kernel/sys_sparc_32.c @@ -24,6 +24,8 @@ #include <asm/uaccess.h> #include <asm/unistd.h> +#include "systbls.h" + /* #define DEBUG_UNIMP_SYSCALL */ /* XXX Make this per-binary type, this way we can detect the type of @@ -34,11 +36,9 @@ asmlinkage unsigned long sys_getpagesize(void) return PAGE_SIZE; /* Possibly older binaries want 8192 on sun4's? */ } -#define COLOUR_ALIGN(addr) (((addr)+SHMLBA-1)&~(SHMLBA-1)) - unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags) { - struct vm_area_struct * vmm; + struct vm_unmapped_area_info info; if (flags & MAP_FIXED) { /* We do not accept a shared mapping if it would violate @@ -56,28 +56,21 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi if (!addr) addr = TASK_UNMAPPED_BASE; - if (flags & MAP_SHARED) - addr = COLOUR_ALIGN(addr); - else - addr = PAGE_ALIGN(addr); - - for (vmm = find_vma(current->mm, addr); ; vmm = vmm->vm_next) { - /* At this point: (!vmm || addr < vmm->vm_end). */ - if (TASK_SIZE - PAGE_SIZE - len < addr) - return -ENOMEM; - if (!vmm || addr + len <= vmm->vm_start) - return addr; - addr = vmm->vm_end; - if (flags & MAP_SHARED) - addr = COLOUR_ALIGN(addr); - } + info.flags = 0; + info.length = len; + info.low_limit = addr; + info.high_limit = TASK_SIZE; + info.align_mask = (flags & MAP_SHARED) ? + (PAGE_MASK & (SHMLBA - 1)) : 0; + info.align_offset = pgoff << PAGE_SHIFT; + return vm_unmapped_area(&info); } /* * sys_pipe() is the normal C calling standard for creating * a pipe. It's not the way unix traditionally does this, though. */ -asmlinkage int sparc_pipe(struct pt_regs *regs) +asmlinkage long sparc_pipe(struct pt_regs *regs) { int fd[2]; int error; @@ -102,7 +95,7 @@ int sparc_mmap_check(unsigned long addr, unsigned long len) /* Linux version of mmap */ -asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len, +asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long pgoff) { @@ -112,7 +105,7 @@ asmlinkage unsigned long sys_mmap2(unsigned long addr, unsigned long len, pgoff >> (PAGE_SHIFT - 12)); } -asmlinkage unsigned long sys_mmap(unsigned long addr, unsigned long len, +asmlinkage long sys_mmap(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long off) { @@ -169,49 +162,19 @@ sparc_breakpoint (struct pt_regs *regs) #endif } -asmlinkage int -sparc_sigaction (int sig, const struct old_sigaction __user *act, - struct old_sigaction __user *oact) +SYSCALL_DEFINE3(sparc_sigaction, int, sig, + struct old_sigaction __user *,act, + struct old_sigaction __user *,oact) { - struct k_sigaction new_ka, old_ka; - int ret; - WARN_ON_ONCE(sig >= 0); - sig = -sig; - - if (act) { - unsigned long 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_restorer, &act->sa_restorer) || - __get_user(new_ka.sa.sa_flags, &act->sa_flags) || - __get_user(mask, &act->sa_mask)) - return -EFAULT; - siginitset(&new_ka.sa.sa_mask, mask); - new_ka.ka_restorer = NULL; - } - - ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL); - - 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_restorer, &oact->sa_restorer) || - __put_user(old_ka.sa.sa_flags, &oact->sa_flags) || - __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask)) - return -EFAULT; - } - - return ret; + return sys_sigaction(-sig, act, oact); } -asmlinkage long -sys_rt_sigaction(int sig, - const struct sigaction __user *act, - struct sigaction __user *oact, - void __user *restorer, - size_t sigsetsize) +SYSCALL_DEFINE5(rt_sigaction, int, sig, + const struct sigaction __user *, act, + struct sigaction __user *, oact, + void __user *, restorer, + size_t, sigsetsize) { struct k_sigaction new_ka, old_ka; int ret; @@ -236,7 +199,7 @@ sys_rt_sigaction(int sig, return ret; } -asmlinkage int sys_getdomainname(char __user *name, int len) +asmlinkage long sys_getdomainname(char __user *name, int len) { int nlen, err; @@ -258,27 +221,3 @@ out: up_read(&uts_sem); return err; } - -/* - * Do a system call from kernel instead of calling sys_execve so we - * end up with proper pt_regs. - */ -int kernel_execve(const char *filename, - const char *const argv[], - const char *const envp[]) -{ - long __res; - register long __g1 __asm__ ("g1") = __NR_execve; - register long __o0 __asm__ ("o0") = (long)(filename); - register long __o1 __asm__ ("o1") = (long)(argv); - register long __o2 __asm__ ("o2") = (long)(envp); - asm volatile ("t 0x10\n\t" - "bcc 1f\n\t" - "mov %%o0, %0\n\t" - "sub %%g0, %%o0, %0\n\t" - "1:\n\t" - : "=r" (__res), "=&r" (__o0) - : "1" (__o0), "r" (__o1), "r" (__o2), "r" (__g1) - : "cc"); - return __res; -} diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c index 11c6c9603e7..c85403d0496 100644 --- a/arch/sparc/kernel/sys_sparc_64.c +++ b/arch/sparc/kernel/sys_sparc_64.c @@ -24,12 +24,14 @@ #include <linux/personality.h> #include <linux/random.h> #include <linux/export.h> +#include <linux/context_tracking.h> #include <asm/uaccess.h> #include <asm/utrap.h> #include <asm/unistd.h> #include "entry.h" +#include "kernel.h" #include "systbls.h" /* #define DEBUG_UNIMP_SYSCALL */ @@ -39,9 +41,6 @@ asmlinkage unsigned long sys_getpagesize(void) return PAGE_SIZE; } -#define VA_EXCLUDE_START (0x0000080000000000UL - (1UL << 32UL)) -#define VA_EXCLUDE_END (0xfffff80000000000UL + (1UL << 32UL)) - /* Does addr --> addr+len fall within 4GB of the VA-space hole or * overflow past the end of the 64-bit address space? */ @@ -75,7 +74,7 @@ static inline int invalid_64bit_range(unsigned long addr, unsigned long len) * the spitfire/niagara VA-hole. */ -static inline unsigned long COLOUR_ALIGN(unsigned long addr, +static inline unsigned long COLOR_ALIGN(unsigned long addr, unsigned long pgoff) { unsigned long base = (addr+SHMLBA-1)&~(SHMLBA-1); @@ -84,24 +83,13 @@ static inline unsigned long COLOUR_ALIGN(unsigned long addr, return base + off; } -static inline unsigned long COLOUR_ALIGN_DOWN(unsigned long addr, - unsigned long pgoff) -{ - unsigned long base = addr & ~(SHMLBA-1); - unsigned long off = (pgoff<<PAGE_SHIFT) & (SHMLBA-1); - - if (base + off <= addr) - return base + off; - return base - off; -} - unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsigned long len, unsigned long pgoff, unsigned long flags) { struct mm_struct *mm = current->mm; struct vm_area_struct * vma; unsigned long task_size = TASK_SIZE; - unsigned long start_addr; int do_color_align; + struct vm_unmapped_area_info info; if (flags & MAP_FIXED) { /* We do not accept a shared mapping if it would violate @@ -124,7 +112,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi if (addr) { if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); + addr = COLOR_ALIGN(addr, pgoff); else addr = PAGE_ALIGN(addr); @@ -134,50 +122,22 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi return addr; } - if (len > mm->cached_hole_size) { - start_addr = addr = mm->free_area_cache; - } else { - start_addr = addr = TASK_UNMAPPED_BASE; - mm->cached_hole_size = 0; + info.flags = 0; + info.length = len; + info.low_limit = TASK_UNMAPPED_BASE; + info.high_limit = min(task_size, VA_EXCLUDE_START); + info.align_mask = do_color_align ? (PAGE_MASK & (SHMLBA - 1)) : 0; + info.align_offset = pgoff << PAGE_SHIFT; + addr = vm_unmapped_area(&info); + + if ((addr & ~PAGE_MASK) && task_size > VA_EXCLUDE_END) { + VM_BUG_ON(addr != -ENOMEM); + info.low_limit = VA_EXCLUDE_END; + info.high_limit = task_size; + addr = vm_unmapped_area(&info); } - task_size -= len; - -full_search: - if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); - else - addr = PAGE_ALIGN(addr); - - for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { - /* At this point: (!vma || addr < vma->vm_end). */ - if (addr < VA_EXCLUDE_START && - (addr + len) >= VA_EXCLUDE_START) { - addr = VA_EXCLUDE_END; - vma = find_vma(mm, VA_EXCLUDE_END); - } - if (unlikely(task_size < addr)) { - if (start_addr != TASK_UNMAPPED_BASE) { - start_addr = addr = TASK_UNMAPPED_BASE; - mm->cached_hole_size = 0; - goto full_search; - } - return -ENOMEM; - } - if (likely(!vma || addr + len <= vma->vm_start)) { - /* - * Remember the place where we stopped the search: - */ - mm->free_area_cache = addr + len; - return addr; - } - if (addr + mm->cached_hole_size < vma->vm_start) - mm->cached_hole_size = vma->vm_start - addr; - - addr = vma->vm_end; - if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); - } + return addr; } unsigned long @@ -190,6 +150,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, unsigned long task_size = STACK_TOP32; unsigned long addr = addr0; int do_color_align; + struct vm_unmapped_area_info info; /* This should only ever run for 32-bit processes. */ BUG_ON(!test_thread_flag(TIF_32BIT)); @@ -214,7 +175,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, /* requesting a specific address */ if (addr) { if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); + addr = COLOR_ALIGN(addr, pgoff); else addr = PAGE_ALIGN(addr); @@ -224,73 +185,27 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, return addr; } - /* check if free_area_cache is useful for us */ - if (len <= mm->cached_hole_size) { - mm->cached_hole_size = 0; - mm->free_area_cache = mm->mmap_base; - } + info.flags = VM_UNMAPPED_AREA_TOPDOWN; + info.length = len; + info.low_limit = PAGE_SIZE; + info.high_limit = mm->mmap_base; + info.align_mask = do_color_align ? (PAGE_MASK & (SHMLBA - 1)) : 0; + info.align_offset = pgoff << PAGE_SHIFT; + addr = vm_unmapped_area(&info); - /* either no address requested or can't fit in requested address hole */ - addr = mm->free_area_cache; - if (do_color_align) { - unsigned long base = COLOUR_ALIGN_DOWN(addr-len, pgoff); - - addr = base + len; - } - - /* make sure it can fit in the remaining address space */ - if (likely(addr > len)) { - vma = find_vma(mm, addr-len); - if (!vma || addr <= vma->vm_start) { - /* remember the address as a hint for next time */ - return (mm->free_area_cache = addr-len); - } - } - - if (unlikely(mm->mmap_base < len)) - goto bottomup; - - addr = mm->mmap_base-len; - if (do_color_align) - addr = COLOUR_ALIGN_DOWN(addr, pgoff); - - do { - /* - * Lookup failure means no vma is above this address, - * else if new region fits below vma->vm_start, - * return with success: - */ - vma = find_vma(mm, addr); - if (likely(!vma || addr+len <= vma->vm_start)) { - /* remember the address as a hint for next time */ - return (mm->free_area_cache = addr); - } - - /* remember the largest hole we saw so far */ - if (addr + mm->cached_hole_size < vma->vm_start) - mm->cached_hole_size = vma->vm_start - addr; - - /* try just below the current vma->vm_start */ - addr = vma->vm_start-len; - if (do_color_align) - addr = COLOUR_ALIGN_DOWN(addr, pgoff); - } while (likely(len < vma->vm_start)); - -bottomup: /* * A failed mmap() very likely causes application failure, * so fall back to the bottom-up function here. This scenario * can happen with large stack limits and large mmap() * allocations. */ - mm->cached_hole_size = ~0UL; - mm->free_area_cache = TASK_UNMAPPED_BASE; - addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags); - /* - * Restore the topdown base: - */ - mm->free_area_cache = mm->mmap_base; - mm->cached_hole_size = ~0UL; + if (addr & ~PAGE_MASK) { + VM_BUG_ON(addr != -ENOMEM); + info.flags = 0; + info.low_limit = TASK_UNMAPPED_BASE; + info.high_limit = STACK_TOP32; + addr = vm_unmapped_area(&info); + } return addr; } @@ -374,7 +289,6 @@ void arch_pick_mmap_layout(struct mm_struct *mm) sysctl_legacy_va_layout) { mm->mmap_base = TASK_UNMAPPED_BASE + random_factor; mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; } else { /* We know it's 32-bit */ unsigned long task_size = STACK_TOP32; @@ -386,7 +300,6 @@ void arch_pick_mmap_layout(struct mm_struct *mm) mm->mmap_base = PAGE_ALIGN(task_size - gap - random_factor); mm->get_unmapped_area = arch_get_unmapped_area_topdown; - mm->unmap_area = arch_unmap_area_topdown; } } @@ -437,7 +350,7 @@ SYSCALL_DEFINE6(sparc_ipc, unsigned int, call, int, first, unsigned long, second case SEMCTL: { err = sys_semctl(first, second, (int)third | IPC_64, - (union semun) ptr); + (unsigned long) ptr); goto out; } default: @@ -554,10 +467,6 @@ SYSCALL_DEFINE2(64_munmap, unsigned long, addr, size_t, len) return vm_munmap(addr, len); } - -extern unsigned long do_mremap(unsigned long addr, - unsigned long old_len, unsigned long new_len, - unsigned long flags, unsigned long new_addr); SYSCALL_DEFINE5(64_mremap, unsigned long, addr, unsigned long, old_len, unsigned long, new_len, unsigned long, flags, @@ -589,6 +498,7 @@ asmlinkage unsigned long c_sys_nis_syscall(struct pt_regs *regs) asmlinkage void sparc_breakpoint(struct pt_regs *regs) { + enum ctx_state prev_state = exception_enter(); siginfo_t info; if (test_thread_flag(TIF_32BIT)) { @@ -607,6 +517,7 @@ asmlinkage void sparc_breakpoint(struct pt_regs *regs) #ifdef DEBUG_SPARC_BREAKPOINT printk ("TRAP: Returning to space: PC=%lx nPC=%lx\n", regs->tpc, regs->tnpc); #endif + exception_exit(prev_state); } extern void check_pending(int signum); @@ -730,24 +641,7 @@ SYSCALL_DEFINE5(rt_sigaction, int, sig, const struct sigaction __user *, act, return ret; } -/* - * Do a system call from kernel instead of calling sys_execve so we - * end up with proper pt_regs. - */ -int kernel_execve(const char *filename, - const char *const argv[], - const char *const envp[]) +asmlinkage long sys_kern_features(void) { - long __res; - register long __g1 __asm__ ("g1") = __NR_execve; - register long __o0 __asm__ ("o0") = (long)(filename); - register long __o1 __asm__ ("o1") = (long)(argv); - register long __o2 __asm__ ("o2") = (long)(envp); - asm volatile ("t 0x6d\n\t" - "sub %%g0, %%o0, %0\n\t" - "movcc %%xcc, %%o0, %0\n\t" - : "=r" (__res), "=&r" (__o0) - : "1" (__o0), "r" (__o1), "r" (__o2), "r" (__g1) - : "cc"); - return __res; + return KERN_FEATURE_MIXED_MODE_STACK; } diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S index 7f5f65d0b3f..33a17e7b3cc 100644 --- a/arch/sparc/kernel/syscalls.S +++ b/arch/sparc/kernel/syscalls.S @@ -1,23 +1,19 @@ /* SunOS's execv() call only specifies the argv argument, the * environment settings are the same as the calling processes. */ -sys_execve: - sethi %hi(sparc_execve), %g1 - ba,pt %xcc, execve_merge - or %g1, %lo(sparc_execve), %g1 +sys64_execve: + set sys_execve, %g1 + jmpl %g1, %g0 + flushw #ifdef CONFIG_COMPAT sunos_execv: - stx %g0, [%sp + PTREGS_OFF + PT_V9_I2] + mov %g0, %o2 sys32_execve: - sethi %hi(sparc32_execve), %g1 - or %g1, %lo(sparc32_execve), %g1 -#endif - -execve_merge: - flushw + set compat_sys_execve, %g1 jmpl %g1, %g0 - add %sp, PTREGS_OFF, %o0 + flushw +#endif .align 32 sys_sparc_pipe: @@ -29,16 +25,10 @@ sys_nis_syscall: sys_memory_ordering: ba,pt %xcc, sparc_memory_ordering add %sp, PTREGS_OFF, %o1 -sys_sigaltstack: - ba,pt %xcc, do_sigaltstack - add %i6, STACK_BIAS, %o2 #ifdef CONFIG_COMPAT sys32_sigstack: ba,pt %xcc, do_sys32_sigstack mov %i6, %o2 -sys32_sigaltstack: - ba,pt %xcc, do_sys32_sigaltstack - mov %i6, %o2 #endif .align 32 #ifdef CONFIG_COMPAT @@ -62,7 +52,7 @@ sys32_rt_sigreturn: #endif .align 32 1: ldx [%g6 + TI_FLAGS], %l5 - andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0 + andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0 be,pt %icc, rtrap nop call syscall_trace_leave @@ -108,20 +98,35 @@ sys_clone: ba,pt %xcc, sparc_do_fork add %sp, PTREGS_OFF, %o2 - .globl ret_from_syscall -ret_from_syscall: + .globl ret_from_fork +ret_from_fork: /* Clear current_thread_info()->new_child. */ stb %g0, [%g6 + TI_NEW_CHILD] - ldx [%g6 + TI_FLAGS], %l0 call schedule_tail mov %g7, %o0 + ldx [%sp + PTREGS_OFF + PT_V9_I0], %o0 + brnz,pt %o0, ret_sys_call + ldx [%g6 + TI_FLAGS], %l0 + ldx [%sp + PTREGS_OFF + PT_V9_G1], %l1 + call %l1 + ldx [%sp + PTREGS_OFF + PT_V9_G2], %o0 ba,pt %xcc, ret_sys_call - ldx [%sp + PTREGS_OFF + PT_V9_I0], %o0 + mov 0, %o0 + + .globl sparc_exit_group + .type sparc_exit_group,#function +sparc_exit_group: + sethi %hi(sys_exit_group), %g7 + ba,pt %xcc, 1f + or %g7, %lo(sys_exit_group), %g7 + .size sparc_exit_group,.-sparc_exit_group .globl sparc_exit .type sparc_exit,#function sparc_exit: - rdpr %pstate, %g2 + sethi %hi(sys_exit), %g7 + or %g7, %lo(sys_exit), %g7 +1: rdpr %pstate, %g2 wrpr %g2, PSTATE_IE, %pstate rdpr %otherwin, %g1 rdpr %cansave, %g3 @@ -129,7 +134,7 @@ sparc_exit: wrpr %g3, 0x0, %cansave wrpr %g0, 0x0, %otherwin wrpr %g2, 0x0, %pstate - ba,pt %xcc, sys_exit + jmpl %g7, %g0 stb %g0, [%g6 + TI_WSAVED] .size sparc_exit,.-sparc_exit @@ -147,7 +152,7 @@ linux_syscall_trace32: srl %i4, 0, %o4 srl %i1, 0, %o1 srl %i2, 0, %o2 - ba,pt %xcc, 2f + ba,pt %xcc, 5f srl %i3, 0, %o3 linux_syscall_trace: @@ -177,14 +182,15 @@ linux_sparc_syscall32: srl %i1, 0, %o1 ! IEU0 Group ldx [%g6 + TI_FLAGS], %l0 ! Load - srl %i5, 0, %o5 ! IEU1 + srl %i3, 0, %o3 ! IEU0 srl %i2, 0, %o2 ! IEU0 Group - andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0 + andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0 bne,pn %icc, linux_syscall_trace32 ! CTI mov %i0, %l5 ! IEU1 - call %l7 ! CTI Group brk forced - srl %i3, 0, %o3 ! IEU0 - ba,a,pt %xcc, 3f +5: call %l7 ! CTI Group brk forced + srl %i5, 0, %o5 ! IEU1 + ba,pt %xcc, 3f + sra %o0, 0, %o0 /* Linux native system calls enter here... */ .align 32 @@ -202,7 +208,7 @@ linux_sparc_syscall: mov %i3, %o3 ! IEU1 mov %i4, %o4 ! IEU0 Group - andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0 + andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0 bne,pn %icc, linux_syscall_trace ! CTI Group mov %i0, %l5 ! IEU0 2: call %l7 ! CTI Group brk forced @@ -212,17 +218,15 @@ linux_sparc_syscall: 3: stx %o0, [%sp + PTREGS_OFF + PT_V9_I0] ret_sys_call: ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %g3 - sra %o0, 0, %o0 mov %ulo(TSTATE_XCARRY | TSTATE_ICARRY), %g2 sllx %g2, 32, %g2 cmp %o0, -ERESTART_RESTARTBLOCK bgeu,pn %xcc, 1f - andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0 + andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0 ldx [%sp + PTREGS_OFF + PT_V9_TNPC], %l1 ! pc = npc 2: - stb %g0, [%g6 + TI_SYS_NOERROR] /* System call success, clear Carry condition code. */ andn %g3, %g2, %g3 3: diff --git a/arch/sparc/kernel/sysfs.c b/arch/sparc/kernel/sysfs.c index 654e8aad3bb..7f41d40b7e6 100644 --- a/arch/sparc/kernel/sysfs.c +++ b/arch/sparc/kernel/sysfs.c @@ -151,7 +151,7 @@ static ssize_t store_mmustat_enable(struct device *s, size_t count) { unsigned long val, err; - int ret = sscanf(buf, "%ld", &val); + int ret = sscanf(buf, "%lu", &val); if (ret != 1) return -EINVAL; @@ -246,7 +246,7 @@ static void unregister_cpu_online(unsigned int cpu) } #endif -static int __cpuinit sysfs_cpu_notify(struct notifier_block *self, +static int sysfs_cpu_notify(struct notifier_block *self, unsigned long action, void *hcpu) { unsigned int cpu = (unsigned int)(long)hcpu; @@ -266,7 +266,7 @@ static int __cpuinit sysfs_cpu_notify(struct notifier_block *self, return NOTIFY_OK; } -static struct notifier_block __cpuinitdata sysfs_cpu_nb = { +static struct notifier_block sysfs_cpu_nb = { .notifier_call = sysfs_cpu_notify, }; @@ -300,7 +300,7 @@ static int __init topology_init(void) check_mmu_stats(); - register_cpu_notifier(&sysfs_cpu_nb); + cpu_notifier_register_begin(); for_each_possible_cpu(cpu) { struct cpu *c = &per_cpu(cpu_devices, cpu); @@ -310,6 +310,10 @@ static int __init topology_init(void) register_cpu_online(cpu); } + __register_cpu_notifier(&sysfs_cpu_nb); + + cpu_notifier_register_done(); + return 0; } diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h index 118759cd734..2dab8236d49 100644 --- a/arch/sparc/kernel/systbls.h +++ b/arch/sparc/kernel/systbls.h @@ -1,43 +1,103 @@ #ifndef _SYSTBLS_H #define _SYSTBLS_H +#include <linux/signal.h> #include <linux/kernel.h> +#include <linux/compat.h> #include <linux/types.h> + #include <asm/utrap.h> -#include <asm/signal.h> -extern asmlinkage unsigned long sys_getpagesize(void); -extern asmlinkage long sparc_pipe(struct pt_regs *regs); -extern asmlinkage long sys_sparc_ipc(unsigned int call, int first, - unsigned long second, - unsigned long third, - void __user *ptr, long fifth); -extern asmlinkage long sparc64_personality(unsigned long personality); -extern asmlinkage long sys64_munmap(unsigned long addr, size_t len); -extern asmlinkage unsigned long sys64_mremap(unsigned long addr, - unsigned long old_len, - unsigned long new_len, - unsigned long flags, - unsigned long new_addr); -extern asmlinkage unsigned long c_sys_nis_syscall(struct pt_regs *regs); -extern asmlinkage long sys_getdomainname(char __user *name, int len); -extern asmlinkage long sys_utrap_install(utrap_entry_t type, - utrap_handler_t new_p, - utrap_handler_t new_d, - utrap_handler_t __user *old_p, - utrap_handler_t __user *old_d); -extern asmlinkage long sparc_memory_ordering(unsigned long model, - struct pt_regs *regs); -extern asmlinkage long sys_rt_sigaction(int sig, - const struct sigaction __user *act, - struct sigaction __user *oact, - void __user *restorer, - size_t sigsetsize); +asmlinkage unsigned long sys_getpagesize(void); +asmlinkage long sparc_pipe(struct pt_regs *regs); +asmlinkage unsigned long c_sys_nis_syscall(struct pt_regs *regs); +asmlinkage long sys_getdomainname(char __user *name, int len); +void do_rt_sigreturn(struct pt_regs *regs); +asmlinkage long sys_mmap(unsigned long addr, unsigned long len, + unsigned long prot, unsigned long flags, + unsigned long fd, unsigned long off); +asmlinkage void sparc_breakpoint(struct pt_regs *regs); + +#ifdef CONFIG_SPARC32 +asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, + unsigned long prot, unsigned long flags, + unsigned long fd, unsigned long pgoff); +long sparc_remap_file_pages(unsigned long start, unsigned long size, + unsigned long prot, unsigned long pgoff, + unsigned long flags); -extern asmlinkage void sparc64_set_context(struct pt_regs *regs); -extern asmlinkage void sparc64_get_context(struct pt_regs *regs); -extern asmlinkage long sys_sigpause(unsigned int set); -extern asmlinkage long sys_sigsuspend(old_sigset_t set); -extern void do_rt_sigreturn(struct pt_regs *regs); +#endif /* CONFIG_SPARC32 */ +#ifdef CONFIG_SPARC64 +asmlinkage long sys_sparc_ipc(unsigned int call, int first, + unsigned long second, + unsigned long third, + void __user *ptr, long fifth); +asmlinkage long sparc64_personality(unsigned long personality); +asmlinkage long sys64_munmap(unsigned long addr, size_t len); +asmlinkage unsigned long sys64_mremap(unsigned long addr, + unsigned long old_len, + unsigned long new_len, + unsigned long flags, + unsigned long new_addr); +asmlinkage long sys_utrap_install(utrap_entry_t type, + utrap_handler_t new_p, + utrap_handler_t new_d, + utrap_handler_t __user *old_p, + utrap_handler_t __user *old_d); +asmlinkage long sparc_memory_ordering(unsigned long model, + struct pt_regs *regs); +asmlinkage void sparc64_set_context(struct pt_regs *regs); +asmlinkage void sparc64_get_context(struct pt_regs *regs); +asmlinkage long sys32_truncate64(const char __user * path, + unsigned long high, + unsigned long low); +asmlinkage long sys32_ftruncate64(unsigned int fd, + unsigned long high, + unsigned long low); +struct compat_stat64; +asmlinkage long compat_sys_stat64(const char __user * filename, + struct compat_stat64 __user *statbuf); +asmlinkage long compat_sys_lstat64(const char __user * filename, + struct compat_stat64 __user *statbuf); +asmlinkage long compat_sys_fstat64(unsigned int fd, + struct compat_stat64 __user * statbuf); +asmlinkage long compat_sys_fstatat64(unsigned int dfd, + const char __user *filename, + struct compat_stat64 __user * statbuf, int flag); +asmlinkage compat_ssize_t sys32_pread64(unsigned int fd, + char __user *ubuf, + compat_size_t count, + unsigned long poshi, + unsigned long poslo); +asmlinkage compat_ssize_t sys32_pwrite64(unsigned int fd, + char __user *ubuf, + compat_size_t count, + unsigned long poshi, + unsigned long poslo); +asmlinkage long compat_sys_readahead(int fd, + unsigned long offhi, + unsigned long offlo, + compat_size_t count); +long compat_sys_fadvise64(int fd, + unsigned long offhi, + unsigned long offlo, + compat_size_t len, int advice); +long compat_sys_fadvise64_64(int fd, + unsigned long offhi, unsigned long offlo, + unsigned long lenhi, unsigned long lenlo, + int advice); +long sys32_sync_file_range(unsigned int fd, + unsigned long off_high, unsigned long off_low, + unsigned long nb_high, unsigned long nb_low, + unsigned int flags); +asmlinkage long compat_sys_fallocate(int fd, int mode, u32 offhi, u32 offlo, + u32 lenhi, u32 lenlo); +asmlinkage long compat_sys_fstat64(unsigned int fd, + struct compat_stat64 __user * statbuf); +asmlinkage long compat_sys_fstatat64(unsigned int dfd, + const char __user *filename, + struct compat_stat64 __user * statbuf, + int flag); +#endif /* CONFIG_SPARC64 */ #endif /* _SYSTBLS_H */ diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S index 63402f9e9f5..85fe9b1087c 100644 --- a/arch/sparc/kernel/systbls_32.S +++ b/arch/sparc/kernel/systbls_32.S @@ -55,7 +55,7 @@ sys_call_table: /*180*/ .long sys_flistxattr, sys_removexattr, sys_lremovexattr, sys_sigpending, sys_ni_syscall /*185*/ .long sys_setpgid, sys_fremovexattr, sys_tkill, sys_exit_group, sys_newuname /*190*/ .long sys_init_module, sys_personality, sparc_remap_file_pages, sys_epoll_create, sys_epoll_ctl -/*195*/ .long sys_epoll_wait, sys_ioprio_set, sys_getppid, sparc_sigaction, sys_sgetmask +/*195*/ .long sys_epoll_wait, sys_ioprio_set, sys_getppid, sys_sparc_sigaction, sys_sgetmask /*200*/ .long sys_ssetmask, sys_sigsuspend, sys_newlstat, sys_uselib, sys_old_readdir /*205*/ .long sys_readahead, sys_socketcall, sys_syslog, sys_lookup_dcookie, sys_fadvise64 /*210*/ .long sys_fadvise64_64, sys_tgkill, sys_waitpid, sys_swapoff, sys_sysinfo @@ -85,3 +85,5 @@ sys_call_table: /*325*/ .long sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg, sys_fanotify_init /*330*/ .long sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime /*335*/ .long sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev +/*340*/ .long sys_ni_syscall, sys_kcmp, sys_finit_module, sys_sched_setattr, sys_sched_getattr +/*345*/ .long sys_renameat2 diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S index 3a58e0d66f5..33ecba2826e 100644 --- a/arch/sparc/kernel/systbls_64.S +++ b/arch/sparc/kernel/systbls_64.S @@ -18,63 +18,63 @@ .globl sys_call_table32 sys_call_table32: -/*0*/ .word sys_restart_syscall, sys32_exit, sys_fork, sys_read, sys_write -/*5*/ .word sys32_open, sys_close, sys32_wait4, sys32_creat, sys_link -/*10*/ .word sys_unlink, sunos_execv, sys_chdir, sys_chown16, sys32_mknod -/*15*/ .word sys_chmod, sys_lchown16, sys_brk, sys_nis_syscall, sys32_lseek +/*0*/ .word sys_restart_syscall, sparc_exit, sys_fork, sys_read, sys_write +/*5*/ .word compat_sys_open, sys_close, compat_sys_wait4, sys_creat, sys_link +/*10*/ .word sys_unlink, sunos_execv, sys_chdir, sys_chown16, sys_mknod +/*15*/ .word sys_chmod, sys_lchown16, sys_brk, sys_nis_syscall, compat_sys_lseek /*20*/ .word sys_getpid, sys_capget, sys_capset, sys_setuid16, sys_getuid16 -/*25*/ .word sys32_vmsplice, compat_sys_ptrace, sys_alarm, sys32_sigaltstack, sys_pause -/*30*/ .word compat_sys_utime, sys_lchown, sys_fchown, sys32_access, sys32_nice - .word sys_chown, sys_sync, sys32_kill, compat_sys_newstat, sys32_sendfile +/*25*/ .word compat_sys_vmsplice, compat_sys_ptrace, sys_alarm, compat_sys_sigaltstack, sys_pause +/*30*/ .word compat_sys_utime, sys_lchown, sys_fchown, sys_access, sys_nice + .word sys_chown, sys_sync, sys_kill, compat_sys_newstat, compat_sys_sendfile /*40*/ .word compat_sys_newlstat, sys_dup, sys_sparc_pipe, compat_sys_times, sys_getuid - .word sys32_umount, sys_setgid16, sys_getgid16, sys32_signal, sys_geteuid16 + .word sys_umount, sys_setgid16, sys_getgid16, sys_signal, sys_geteuid16 /*50*/ .word sys_getegid16, sys_acct, sys_nis_syscall, sys_getgid, compat_sys_ioctl - .word sys32_reboot, sys32_mmap2, sys_symlink, sys32_readlink, sys32_execve -/*60*/ .word sys32_umask, sys_chroot, compat_sys_newfstat, compat_sys_fstat64, sys_getpagesize - .word sys32_msync, sys_vfork, sys32_pread64, sys32_pwrite64, sys_geteuid + .word sys_reboot, sys32_mmap2, sys_symlink, sys_readlink, sys32_execve +/*60*/ .word sys_umask, sys_chroot, compat_sys_newfstat, compat_sys_fstat64, sys_getpagesize + .word sys_msync, sys_vfork, sys32_pread64, sys32_pwrite64, sys_geteuid /*70*/ .word sys_getegid, sys_mmap, sys_setreuid, sys_munmap, sys_mprotect .word sys_madvise, sys_vhangup, sys32_truncate64, sys_mincore, sys_getgroups16 -/*80*/ .word sys_setgroups16, sys_getpgrp, sys32_setgroups, sys32_setitimer, sys32_ftruncate64 - .word sys32_swapon, sys32_getitimer, sys_setuid, sys32_sethostname, sys_setgid +/*80*/ .word sys_setgroups16, sys_getpgrp, sys_setgroups, compat_sys_setitimer, sys32_ftruncate64 + .word sys_swapon, compat_sys_getitimer, sys_setuid, sys_sethostname, sys_setgid /*90*/ .word sys_dup2, sys_setfsuid, compat_sys_fcntl, sys32_select, sys_setfsgid - .word sys_fsync, sys32_setpriority, sys_nis_syscall, sys_nis_syscall, sys_nis_syscall -/*100*/ .word sys32_getpriority, sys32_rt_sigreturn, sys32_rt_sigaction, sys32_rt_sigprocmask, sys32_rt_sigpending - .word compat_sys_rt_sigtimedwait, sys32_rt_sigqueueinfo, compat_sys_rt_sigsuspend, sys_setresuid, sys_getresuid + .word sys_fsync, sys_setpriority, sys_nis_syscall, sys_nis_syscall, sys_nis_syscall +/*100*/ .word sys_getpriority, sys32_rt_sigreturn, compat_sys_rt_sigaction, compat_sys_rt_sigprocmask, compat_sys_rt_sigpending + .word compat_sys_rt_sigtimedwait, compat_sys_rt_sigqueueinfo, compat_sys_rt_sigsuspend, sys_setresuid, sys_getresuid /*110*/ .word sys_setresgid, sys_getresgid, sys_setregid, sys_nis_syscall, sys_nis_syscall - .word sys32_getgroups, compat_sys_gettimeofday, sys32_getrusage, sys_nis_syscall, sys_getcwd + .word sys_getgroups, compat_sys_gettimeofday, compat_sys_getrusage, sys_nis_syscall, sys_getcwd /*120*/ .word compat_sys_readv, compat_sys_writev, compat_sys_settimeofday, sys_fchown16, sys_fchmod - .word sys_nis_syscall, sys_setreuid16, sys_setregid16, sys_rename, sys32_truncate -/*130*/ .word sys32_ftruncate, sys_flock, compat_sys_lstat64, sys_nis_syscall, sys_nis_syscall - .word sys_nis_syscall, sys32_mkdir, sys_rmdir, compat_sys_utimes, compat_sys_stat64 -/*140*/ .word sys32_sendfile64, sys_nis_syscall, sys32_futex, sys_gettid, compat_sys_getrlimit - .word compat_sys_setrlimit, sys_pivot_root, sys32_prctl, sys_pciconfig_read, sys_pciconfig_write + .word sys_nis_syscall, sys_setreuid16, sys_setregid16, sys_rename, compat_sys_truncate +/*130*/ .word compat_sys_ftruncate, sys_flock, compat_sys_lstat64, sys_nis_syscall, sys_nis_syscall + .word sys_nis_syscall, sys_mkdir, sys_rmdir, compat_sys_utimes, compat_sys_stat64 +/*140*/ .word sys_sendfile64, sys_nis_syscall, sys32_futex, sys_gettid, compat_sys_getrlimit + .word compat_sys_setrlimit, sys_pivot_root, sys_prctl, sys_pciconfig_read, sys_pciconfig_write /*150*/ .word sys_nis_syscall, sys_inotify_init, sys_inotify_add_watch, sys_poll, sys_getdents64 .word compat_sys_fcntl64, sys_inotify_rm_watch, compat_sys_statfs, compat_sys_fstatfs, sys_oldumount -/*160*/ .word compat_sys_sched_setaffinity, compat_sys_sched_getaffinity, sys32_getdomainname, sys32_setdomainname, sys_nis_syscall - .word sys_quotactl, sys_set_tid_address, compat_sys_mount, compat_sys_ustat, sys32_setxattr -/*170*/ .word sys32_lsetxattr, sys32_fsetxattr, sys_getxattr, sys_lgetxattr, compat_sys_getdents - .word sys_setsid, sys_fchdir, sys32_fgetxattr, sys_listxattr, sys_llistxattr -/*180*/ .word sys32_flistxattr, sys_removexattr, sys_lremovexattr, compat_sys_sigpending, sys_ni_syscall - .word sys32_setpgid, sys32_fremovexattr, sys32_tkill, sys32_exit_group, sys_newuname -/*190*/ .word sys32_init_module, sys_sparc64_personality, sys_remap_file_pages, sys32_epoll_create, sys32_epoll_ctl - .word sys32_epoll_wait, sys32_ioprio_set, sys_getppid, sys32_sigaction, sys_sgetmask -/*200*/ .word sys32_ssetmask, sys_sigsuspend, compat_sys_newlstat, sys_uselib, compat_sys_old_readdir - .word sys32_readahead, sys32_socketcall, sys32_syslog, sys32_lookup_dcookie, sys32_fadvise64 -/*210*/ .word sys32_fadvise64_64, sys32_tgkill, sys32_waitpid, sys_swapoff, compat_sys_sysinfo - .word compat_sys_ipc, sys32_sigreturn, sys_clone, sys32_ioprio_get, compat_sys_adjtimex -/*220*/ .word sys32_sigprocmask, sys_ni_syscall, sys32_delete_module, sys_ni_syscall, sys32_getpgid - .word sys32_bdflush, sys32_sysfs, sys_nis_syscall, sys_setfsuid16, sys_setfsgid16 -/*230*/ .word sys32_select, compat_sys_time, sys32_splice, compat_sys_stime, compat_sys_statfs64 - .word compat_sys_fstatfs64, sys_llseek, sys_mlock, sys_munlock, sys32_mlockall -/*240*/ .word sys_munlockall, sys32_sched_setparam, sys32_sched_getparam, sys32_sched_setscheduler, sys32_sched_getscheduler - .word sys_sched_yield, sys32_sched_get_priority_max, sys32_sched_get_priority_min, sys32_sched_rr_get_interval, compat_sys_nanosleep -/*250*/ .word sys_mremap, compat_sys_sysctl, sys32_getsid, sys_fdatasync, sys_nis_syscall +/*160*/ .word compat_sys_sched_setaffinity, compat_sys_sched_getaffinity, sys_getdomainname, sys_setdomainname, sys_nis_syscall + .word sys_quotactl, sys_set_tid_address, compat_sys_mount, compat_sys_ustat, sys_setxattr +/*170*/ .word sys_lsetxattr, sys_fsetxattr, sys_getxattr, sys_lgetxattr, compat_sys_getdents + .word sys_setsid, sys_fchdir, sys_fgetxattr, sys_listxattr, sys_llistxattr +/*180*/ .word sys_flistxattr, sys_removexattr, sys_lremovexattr, compat_sys_sigpending, sys_ni_syscall + .word sys_setpgid, sys_fremovexattr, sys_tkill, sparc_exit_group, sys_newuname +/*190*/ .word sys_init_module, sys_sparc64_personality, sys_remap_file_pages, sys_epoll_create, sys_epoll_ctl + .word sys_epoll_wait, sys_ioprio_set, sys_getppid, compat_sys_sparc_sigaction, sys_sgetmask +/*200*/ .word sys_ssetmask, sys_sigsuspend, compat_sys_newlstat, sys_uselib, compat_sys_old_readdir + .word sys32_readahead, sys32_socketcall, sys_syslog, compat_sys_lookup_dcookie, sys32_fadvise64 +/*210*/ .word sys32_fadvise64_64, sys_tgkill, sys_waitpid, sys_swapoff, compat_sys_sysinfo + .word compat_sys_ipc, sys32_sigreturn, sys_clone, sys_ioprio_get, compat_sys_adjtimex +/*220*/ .word compat_sys_sigprocmask, sys_ni_syscall, sys_delete_module, sys_ni_syscall, sys_getpgid + .word sys_bdflush, sys_sysfs, sys_nis_syscall, sys_setfsuid16, sys_setfsgid16 +/*230*/ .word sys32_select, compat_sys_time, sys_splice, compat_sys_stime, compat_sys_statfs64 + .word compat_sys_fstatfs64, sys_llseek, sys_mlock, sys_munlock, sys_mlockall +/*240*/ .word sys_munlockall, sys_sched_setparam, sys_sched_getparam, sys_sched_setscheduler, sys_sched_getscheduler + .word sys_sched_yield, sys_sched_get_priority_max, sys_sched_get_priority_min, compat_sys_sched_rr_get_interval, compat_sys_nanosleep +/*250*/ .word sys_mremap, compat_sys_sysctl, sys_getsid, sys_fdatasync, sys_nis_syscall .word sys32_sync_file_range, compat_sys_clock_settime, compat_sys_clock_gettime, compat_sys_clock_getres, sys32_clock_nanosleep /*260*/ .word compat_sys_sched_getaffinity, compat_sys_sched_setaffinity, sys32_timer_settime, compat_sys_timer_gettime, sys_timer_getoverrun .word sys_timer_delete, compat_sys_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy /*270*/ .word sys32_io_submit, sys_io_cancel, compat_sys_io_getevents, sys32_mq_open, sys_mq_unlink .word compat_sys_mq_timedsend, compat_sys_mq_timedreceive, compat_sys_mq_notify, compat_sys_mq_getsetattr, compat_sys_waitid -/*280*/ .word sys32_tee, sys_add_key, sys_request_key, compat_sys_keyctl, compat_sys_openat +/*280*/ .word sys_tee, sys_add_key, sys_request_key, compat_sys_keyctl, compat_sys_openat .word sys_mkdirat, sys_mknodat, sys_fchownat, compat_sys_futimesat, compat_sys_fstatat64 /*290*/ .word sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat .word sys_fchmodat, sys_faccessat, compat_sys_pselect6, compat_sys_ppoll, sys_unshare @@ -84,8 +84,10 @@ sys_call_table32: .word compat_sys_timerfd_settime, compat_sys_timerfd_gettime, compat_sys_signalfd4, sys_eventfd2, sys_epoll_create1 /*320*/ .word sys_dup3, sys_pipe2, sys_inotify_init1, sys_accept4, compat_sys_preadv .word compat_sys_pwritev, compat_sys_rt_tgsigqueueinfo, sys_perf_event_open, compat_sys_recvmmsg, sys_fanotify_init -/*330*/ .word sys32_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, compat_sys_open_by_handle_at, compat_sys_clock_adjtime +/*330*/ .word compat_sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, compat_sys_open_by_handle_at, compat_sys_clock_adjtime .word sys_syncfs, compat_sys_sendmmsg, sys_setns, compat_sys_process_vm_readv, compat_sys_process_vm_writev +/*340*/ .word sys_kern_features, sys_kcmp, sys_finit_module, sys_sched_setattr, sys_sched_getattr + .word sys32_renameat2 #endif /* CONFIG_COMPAT */ @@ -106,7 +108,7 @@ sys_call_table: /*40*/ .word sys_newlstat, sys_dup, sys_sparc_pipe, sys_times, sys_nis_syscall .word sys_umount, sys_setgid, sys_getgid, sys_signal, sys_geteuid /*50*/ .word sys_getegid, sys_acct, sys_memory_ordering, sys_nis_syscall, sys_ioctl - .word sys_reboot, sys_nis_syscall, sys_symlink, sys_readlink, sys_execve + .word sys_reboot, sys_nis_syscall, sys_symlink, sys_readlink, sys64_execve /*60*/ .word sys_umask, sys_chroot, sys_newfstat, sys_fstat64, sys_getpagesize .word sys_msync, sys_vfork, sys_pread64, sys_pwrite64, sys_nis_syscall /*70*/ .word sys_nis_syscall, sys_mmap, sys_nis_syscall, sys_64_munmap, sys_mprotect @@ -132,7 +134,7 @@ sys_call_table: /*170*/ .word sys_lsetxattr, sys_fsetxattr, sys_getxattr, sys_lgetxattr, sys_getdents .word sys_setsid, sys_fchdir, sys_fgetxattr, sys_listxattr, sys_llistxattr /*180*/ .word sys_flistxattr, sys_removexattr, sys_lremovexattr, sys_nis_syscall, sys_ni_syscall - .word sys_setpgid, sys_fremovexattr, sys_tkill, sys_exit_group, sys_newuname + .word sys_setpgid, sys_fremovexattr, sys_tkill, sparc_exit_group, sys_newuname /*190*/ .word sys_init_module, sys_sparc64_personality, sys_remap_file_pages, sys_epoll_create, sys_epoll_ctl .word sys_epoll_wait, sys_ioprio_set, sys_getppid, sys_nis_syscall, sys_sgetmask /*200*/ .word sys_ssetmask, sys_nis_syscall, sys_newlstat, sys_uselib, sys_nis_syscall @@ -163,3 +165,5 @@ sys_call_table: .word sys_pwritev, sys_rt_tgsigqueueinfo, sys_perf_event_open, sys_recvmmsg, sys_fanotify_init /*330*/ .word sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime .word sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev +/*340*/ .word sys_kern_features, sys_kcmp, sys_finit_module, sys_sched_setattr, sys_sched_getattr + .word sys_renameat2 diff --git a/arch/sparc/kernel/tadpole.c b/arch/sparc/kernel/tadpole.c deleted file mode 100644 index 9aba8bd5a78..00000000000 --- a/arch/sparc/kernel/tadpole.c +++ /dev/null @@ -1,126 +0,0 @@ -/* tadpole.c: Probing for the tadpole clock stopping h/w at boot time. - * - * Copyright (C) 1996 David Redman (djhr@tadpole.co.uk) - */ - -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/init.h> - -#include <asm/asi.h> -#include <asm/oplib.h> -#include <asm/io.h> - -#define MACIO_SCSI_CSR_ADDR 0x78400000 -#define MACIO_EN_DMA 0x00000200 -#define CLOCK_INIT_DONE 1 - -static int clk_state; -static volatile unsigned char *clk_ctrl; -void (*cpu_pwr_save)(void); - -static inline unsigned int ldphys(unsigned int addr) -{ - unsigned long data; - - __asm__ __volatile__("\n\tlda [%1] %2, %0\n\t" : - "=r" (data) : - "r" (addr), "i" (ASI_M_BYPASS)); - return data; -} - -static void clk_init(void) -{ - __asm__ __volatile__("mov 0x6c, %%g1\n\t" - "mov 0x4c, %%g2\n\t" - "mov 0xdf, %%g3\n\t" - "stb %%g1, [%0+3]\n\t" - "stb %%g2, [%0+3]\n\t" - "stb %%g3, [%0+3]\n\t" : : - "r" (clk_ctrl) : - "g1", "g2", "g3"); -} - -static void clk_slow(void) -{ - __asm__ __volatile__("mov 0xcc, %%g2\n\t" - "mov 0x4c, %%g3\n\t" - "mov 0xcf, %%g4\n\t" - "mov 0xdf, %%g5\n\t" - "stb %%g2, [%0+3]\n\t" - "stb %%g3, [%0+3]\n\t" - "stb %%g4, [%0+3]\n\t" - "stb %%g5, [%0+3]\n\t" : : - "r" (clk_ctrl) : - "g2", "g3", "g4", "g5"); -} - -/* - * Tadpole is guaranteed to be UP, using local_irq_save. - */ -static void tsu_clockstop(void) -{ - unsigned int mcsr; - unsigned long flags; - - if (!clk_ctrl) - return; - if (!(clk_state & CLOCK_INIT_DONE)) { - local_irq_save(flags); - clk_init(); - clk_state |= CLOCK_INIT_DONE; /* all done */ - local_irq_restore(flags); - return; - } - if (!(clk_ctrl[2] & 1)) - return; /* no speed up yet */ - - local_irq_save(flags); - - /* if SCSI DMA in progress, don't slow clock */ - mcsr = ldphys(MACIO_SCSI_CSR_ADDR); - if ((mcsr&MACIO_EN_DMA) != 0) { - local_irq_restore(flags); - return; - } - /* TODO... the minimum clock setting ought to increase the - * memory refresh interval.. - */ - clk_slow(); - local_irq_restore(flags); -} - -static void swift_clockstop(void) -{ - if (!clk_ctrl) - return; - clk_ctrl[0] = 0; -} - -void __init clock_stop_probe(void) -{ - phandle node, clk_nd; - char name[20]; - - prom_getstring(prom_root_node, "name", name, sizeof(name)); - if (strncmp(name, "Tadpole", 7)) - return; - node = prom_getchild(prom_root_node); - node = prom_searchsiblings(node, "obio"); - node = prom_getchild(node); - clk_nd = prom_searchsiblings(node, "clk-ctrl"); - if (!clk_nd) - return; - printk("Clock Stopping h/w detected... "); - clk_ctrl = (char *) prom_getint(clk_nd, "address"); - clk_state = 0; - if (name[10] == '\0') { - cpu_pwr_save = tsu_clockstop; - printk("enabled (S3)\n"); - } else if ((name[10] == 'X') || (name[10] == 'G')) { - cpu_pwr_save = swift_clockstop; - printk("enabled (%s)\n",name+7); - } else - printk("disabled %s\n",name+7); -} diff --git a/arch/sparc/kernel/time_32.c b/arch/sparc/kernel/time_32.c index 953641549e8..5923d1e4e7c 100644 --- a/arch/sparc/kernel/time_32.c +++ b/arch/sparc/kernel/time_32.c @@ -36,6 +36,7 @@ #include <linux/of_device.h> #include <linux/platform_device.h> +#include <asm/mc146818rtc.h> #include <asm/oplib.h> #include <asm/timex.h> #include <asm/timer.h> @@ -47,6 +48,7 @@ #include <asm/irq_regs.h> #include <asm/setup.h> +#include "kernel.h" #include "irq.h" static __cacheline_aligned_in_smp DEFINE_SEQLOCK(timer_cs_lock); @@ -83,7 +85,7 @@ unsigned long profile_pc(struct pt_regs *regs) EXPORT_SYMBOL(profile_pc); -__volatile__ unsigned int *master_l10_counter; +volatile u32 __iomem *master_l10_counter; int update_persistent_clock(struct timespec now) { @@ -143,9 +145,9 @@ static __init void setup_timer_ce(void) static unsigned int sbus_cycles_offset(void) { - unsigned int val, offset; + u32 val, offset; - val = *master_l10_counter; + val = sbus_readl(master_l10_counter); offset = (val >> TIMER_VALUE_SHIFT) & TIMER_VALUE_MASK; /* Limit hit? */ @@ -278,7 +280,7 @@ static struct platform_device m48t59_rtc = { }, }; -static int __devinit clock_probe(struct platform_device *op) +static int clock_probe(struct platform_device *op) { struct device_node *dp = op->dev.of_node; const char *model = of_get_property(dp, "model", NULL); diff --git a/arch/sparc/kernel/time_64.c b/arch/sparc/kernel/time_64.c index e861072b9c5..3fddf64c7fc 100644 --- a/arch/sparc/kernel/time_64.c +++ b/arch/sparc/kernel/time_64.c @@ -419,7 +419,7 @@ static struct platform_device rtc_cmos_device = { .num_resources = 1, }; -static int __devinit rtc_probe(struct platform_device *op) +static int rtc_probe(struct platform_device *op) { struct resource *r; @@ -477,7 +477,7 @@ static struct platform_device rtc_bq4802_device = { .num_resources = 1, }; -static int __devinit bq4802_probe(struct platform_device *op) +static int bq4802_probe(struct platform_device *op) { printk(KERN_INFO "%s: BQ4802 regs at 0x%llx\n", @@ -534,7 +534,7 @@ static struct platform_device m48t59_rtc = { }, }; -static int __devinit mostek_probe(struct platform_device *op) +static int mostek_probe(struct platform_device *op) { struct device_node *dp = op->dev.of_node; @@ -659,8 +659,7 @@ static int sparc64_cpufreq_notifier(struct notifier_block *nb, unsigned long val ft->clock_tick_ref = cpu_data(cpu).clock_tick; } if ((val == CPUFREQ_PRECHANGE && freq->old < freq->new) || - (val == CPUFREQ_POSTCHANGE && freq->old > freq->new) || - (val == CPUFREQ_RESUMECHANGE)) { + (val == CPUFREQ_POSTCHANGE && freq->old > freq->new)) { cpu_data(cpu).clock_tick = cpufreq_scale(ft->clock_tick_ref, ft->ref_freq, @@ -733,7 +732,7 @@ void __irq_entry timer_interrupt(int irq, struct pt_regs *regs) irq_enter(); local_cpu_data().irq0_irqs++; - kstat_incr_irqs_this_cpu(0, irq_to_desc(0)); + kstat_incr_irq_this_cpu(0); if (unlikely(!evt->event_handler)) { printk(KERN_WARNING @@ -746,7 +745,7 @@ void __irq_entry timer_interrupt(int irq, struct pt_regs *regs) set_irq_regs(old_regs); } -void __devinit setup_sparc64_timer(void) +void setup_sparc64_timer(void) { struct clock_event_device *sevt; unsigned long pstate; @@ -844,7 +843,7 @@ unsigned long long sched_clock(void) >> SPARC64_NSEC_PER_CYC_SHIFT; } -int __devinit read_current_timer(unsigned long *timer_val) +int read_current_timer(unsigned long *timer_val) { *timer_val = tick_ops->get_tick(); return 0; diff --git a/arch/sparc/kernel/trampoline_32.S b/arch/sparc/kernel/trampoline_32.S index af27acab448..3eed99fc698 100644 --- a/arch/sparc/kernel/trampoline_32.S +++ b/arch/sparc/kernel/trampoline_32.S @@ -5,7 +5,6 @@ * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) */ -#include <linux/init.h> #include <asm/head.h> #include <asm/psr.h> #include <asm/page.h> @@ -18,7 +17,6 @@ .globl sun4m_cpu_startup .globl sun4d_cpu_startup - __CPUINIT .align 4 /* When we start up a cpu for the first time it enters this routine. @@ -79,25 +77,21 @@ cpu3_startup: nop /* Start this processor. */ - call smp4m_callin + call smp_callin nop - b,a smp_do_cpu_idle + b,a smp_panic .text .align 4 -smp_do_cpu_idle: - call cpu_idle - mov 0, %o0 - +smp_panic: call cpu_panic nop /* CPUID in bootbus can be found at PA 0xff0140000 */ #define SUN4D_BOOTBUS_CPUID 0xf0140000 - __CPUINIT .align 4 sun4d_cpu_startup: @@ -144,12 +138,11 @@ sun4d_cpu_startup: nop /* Start this processor. */ - call smp4d_callin + call smp_callin nop - b,a smp_do_cpu_idle + b,a smp_panic - __CPUINIT .align 4 .global leon_smp_cpu_startup, smp_penguin_ctable @@ -201,7 +194,7 @@ leon_smp_cpu_startup: nop /* Start this processor. */ - call leon_callin + call smp_callin nop - b,a smp_do_cpu_idle + b,a smp_panic diff --git a/arch/sparc/kernel/trampoline_64.S b/arch/sparc/kernel/trampoline_64.S index da1b781b5e6..737f8cbc7d5 100644 --- a/arch/sparc/kernel/trampoline_64.S +++ b/arch/sparc/kernel/trampoline_64.S @@ -4,7 +4,6 @@ * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) */ -#include <linux/init.h> #include <asm/head.h> #include <asm/asi.h> @@ -32,13 +31,11 @@ itlb_load: dtlb_load: .asciz "SUNW,dtlb-load" - /* XXX __cpuinit this thing XXX */ #define TRAMP_STACK_SIZE 1024 .align 16 tramp_stack: .skip TRAMP_STACK_SIZE - __CPUINIT .align 8 .globl sparc64_cpu_startup, sparc64_cpu_startup_end sparc64_cpu_startup: @@ -131,7 +128,6 @@ startup_continue: clr %l5 sethi %hi(num_kernel_image_mappings), %l6 lduw [%l6 + %lo(num_kernel_image_mappings)], %l6 - add %l6, 1, %l6 mov 15, %l7 BRANCH_IF_ANY_CHEETAH(g1,g5,2f) @@ -224,7 +220,6 @@ niagara_lock_tlb: clr %l5 sethi %hi(num_kernel_image_mappings), %l6 lduw [%l6 + %lo(num_kernel_image_mappings)], %l6 - add %l6, 1, %l6 1: mov HV_FAST_MMU_MAP_PERM_ADDR, %o5 @@ -407,8 +402,7 @@ after_lock_tlb: call smp_callin nop - call cpu_idle - mov 0, %o0 + call cpu_panic nop 1: b,a,pt %xcc, 1b diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c index a5785ea2a85..6fd386c5232 100644 --- a/arch/sparc/kernel/traps_32.c +++ b/arch/sparc/kernel/traps_32.c @@ -44,7 +44,7 @@ static void instruction_dump(unsigned long *pc) #define __SAVE __asm__ __volatile__("save %sp, -0x40, %sp\n\t") #define __RESTORE __asm__ __volatile__("restore %g0, %g0, %g0\n\t") -void die_if_kernel(char *str, struct pt_regs *regs) +void __noreturn die_if_kernel(char *str, struct pt_regs *regs) { static int die_counter; int count = 0; @@ -58,7 +58,7 @@ void die_if_kernel(char *str, struct pt_regs *regs) printk("%s(%d): %s [#%d]\n", current->comm, task_pid_nr(current), str, ++die_counter); show_regs(regs); - add_taint(TAINT_DIE); + add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE); __SAVE; __SAVE; __SAVE; __SAVE; __SAVE; __SAVE; __SAVE; __SAVE; @@ -219,8 +219,6 @@ static unsigned long fake_fsr; static unsigned long fake_queue[32] __attribute__ ((aligned (8))); static unsigned long fake_depth; -extern int do_mathemu(struct pt_regs *, struct task_struct *); - void do_fpe_trap(struct pt_regs *regs, unsigned long pc, unsigned long npc, unsigned long psr) { diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c index b66a77968f3..fb6640ec855 100644 --- a/arch/sparc/kernel/traps_64.c +++ b/arch/sparc/kernel/traps_64.c @@ -20,6 +20,7 @@ #include <linux/ftrace.h> #include <linux/reboot.h> #include <linux/gfp.h> +#include <linux/context_tracking.h> #include <asm/smp.h> #include <asm/delay.h> @@ -42,8 +43,10 @@ #include <asm/prom.h> #include <asm/memctrl.h> #include <asm/cacheflush.h> +#include <asm/setup.h> #include "entry.h" +#include "kernel.h" #include "kstack.h" /* When an irrecoverable trap occurs at tl > 0, the trap entry @@ -186,11 +189,12 @@ EXPORT_SYMBOL_GPL(unregister_dimm_printer); void spitfire_insn_access_exception(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar) { + enum ctx_state prev_state = exception_enter(); siginfo_t info; if (notify_die(DIE_TRAP, "instruction access exception", regs, 0, 0x8, SIGTRAP) == NOTIFY_STOP) - return; + goto out; if (regs->tstate & TSTATE_PRIV) { printk("spitfire_insn_access_exception: SFSR[%016lx] " @@ -207,6 +211,8 @@ void spitfire_insn_access_exception(struct pt_regs *regs, unsigned long sfsr, un info.si_addr = (void __user *)regs->tpc; info.si_trapno = 0; force_sig_info(SIGSEGV, &info, current); +out: + exception_exit(prev_state); } void spitfire_insn_access_exception_tl1(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar) @@ -260,11 +266,12 @@ void sun4v_insn_access_exception_tl1(struct pt_regs *regs, unsigned long addr, u void spitfire_data_access_exception(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar) { + enum ctx_state prev_state = exception_enter(); siginfo_t info; if (notify_die(DIE_TRAP, "data access exception", regs, 0, 0x30, SIGTRAP) == NOTIFY_STOP) - return; + goto out; if (regs->tstate & TSTATE_PRIV) { /* Test if this comes from uaccess places. */ @@ -280,7 +287,7 @@ void spitfire_data_access_exception(struct pt_regs *regs, unsigned long sfsr, un #endif regs->tpc = entry->fixup; regs->tnpc = regs->tpc + 4; - return; + goto out; } /* Shit... */ printk("spitfire_data_access_exception: SFSR[%016lx] " @@ -294,6 +301,8 @@ void spitfire_data_access_exception(struct pt_regs *regs, unsigned long sfsr, un info.si_addr = (void __user *)sfar; info.si_trapno = 0; force_sig_info(SIGSEGV, &info, current); +out: + exception_exit(prev_state); } void spitfire_data_access_exception_tl1(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar) @@ -1994,6 +2003,7 @@ static void sun4v_log_error(struct pt_regs *regs, struct sun4v_error_entry *ent, */ void sun4v_resum_error(struct pt_regs *regs, unsigned long offset) { + enum ctx_state prev_state = exception_enter(); struct sun4v_error_entry *ent, local_copy; struct trap_per_cpu *tb; unsigned long paddr; @@ -2022,12 +2032,14 @@ void sun4v_resum_error(struct pt_regs *regs, unsigned long offset) pr_info("Shutdown request, %u seconds...\n", local_copy.err_secs); orderly_poweroff(true); - return; + goto out; } sun4v_log_error(regs, &local_copy, cpu, KERN_ERR "RESUMABLE ERROR", &sun4v_resum_oflow_cnt); +out: + exception_exit(prev_state); } /* If we try to printk() we'll probably make matters worse, by trying @@ -2152,7 +2164,7 @@ void hypervisor_tlbop_error_xcall(unsigned long err, unsigned long op) err, op); } -void do_fpe_common(struct pt_regs *regs) +static void do_fpe_common(struct pt_regs *regs) { if (regs->tstate & TSTATE_PRIV) { regs->tpc = regs->tnpc; @@ -2188,23 +2200,26 @@ void do_fpe_common(struct pt_regs *regs) void do_fpieee(struct pt_regs *regs) { + enum ctx_state prev_state = exception_enter(); + if (notify_die(DIE_TRAP, "fpu exception ieee", regs, 0, 0x24, SIGFPE) == NOTIFY_STOP) - return; + goto out; do_fpe_common(regs); +out: + exception_exit(prev_state); } -extern int do_mathemu(struct pt_regs *, struct fpustate *, bool); - void do_fpother(struct pt_regs *regs) { + enum ctx_state prev_state = exception_enter(); struct fpustate *f = FPUSTATE; int ret = 0; if (notify_die(DIE_TRAP, "fpu exception other", regs, 0, 0x25, SIGFPE) == NOTIFY_STOP) - return; + goto out; switch ((current_thread_info()->xfsr[0] & 0x1c000)) { case (2 << 14): /* unfinished_FPop */ @@ -2213,17 +2228,20 @@ void do_fpother(struct pt_regs *regs) break; } if (ret) - return; + goto out; do_fpe_common(regs); +out: + exception_exit(prev_state); } void do_tof(struct pt_regs *regs) { + enum ctx_state prev_state = exception_enter(); siginfo_t info; if (notify_die(DIE_TRAP, "tagged arithmetic overflow", regs, 0, 0x26, SIGEMT) == NOTIFY_STOP) - return; + goto out; if (regs->tstate & TSTATE_PRIV) die_if_kernel("Penguin overflow trap from kernel mode", regs); @@ -2237,15 +2255,18 @@ void do_tof(struct pt_regs *regs) info.si_addr = (void __user *)regs->tpc; info.si_trapno = 0; force_sig_info(SIGEMT, &info, current); +out: + exception_exit(prev_state); } void do_div0(struct pt_regs *regs) { + enum ctx_state prev_state = exception_enter(); siginfo_t info; if (notify_die(DIE_TRAP, "integer division by zero", regs, 0, 0x28, SIGFPE) == NOTIFY_STOP) - return; + goto out; if (regs->tstate & TSTATE_PRIV) die_if_kernel("TL0: Kernel divide by zero.", regs); @@ -2259,6 +2280,8 @@ void do_div0(struct pt_regs *regs) info.si_addr = (void __user *)regs->tpc; info.si_trapno = 0; force_sig_info(SIGFPE, &info, current); +out: + exception_exit(prev_state); } static void instruction_dump(unsigned int *pc) @@ -2350,13 +2373,6 @@ void show_stack(struct task_struct *tsk, unsigned long *_ksp) } while (++count < 16); } -void dump_stack(void) -{ - show_stack(current, NULL); -} - -EXPORT_SYMBOL(dump_stack); - static inline struct reg_window *kernel_stack_up(struct reg_window *rw) { unsigned long fp = rw->ins[6]; @@ -2367,7 +2383,7 @@ static inline struct reg_window *kernel_stack_up(struct reg_window *rw) return (struct reg_window *) (fp + STACK_BIAS); } -void die_if_kernel(char *str, struct pt_regs *regs) +void __noreturn die_if_kernel(char *str, struct pt_regs *regs) { static int die_counter; int count = 0; @@ -2383,7 +2399,7 @@ void die_if_kernel(char *str, struct pt_regs *regs) notify_die(DIE_OOPS, str, regs, 0, 255, SIGSEGV); __asm__ __volatile__("flushw"); show_regs(regs); - add_taint(TAINT_DIE); + add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE); if (regs->tstate & TSTATE_PRIV) { struct thread_info *tp = current_thread_info(); struct reg_window *rw = (struct reg_window *) @@ -2417,11 +2433,9 @@ EXPORT_SYMBOL(die_if_kernel); #define VIS_OPCODE_MASK ((0x3 << 30) | (0x3f << 19)) #define VIS_OPCODE_VAL ((0x2 << 30) | (0x36 << 19)) -extern int handle_popc(u32 insn, struct pt_regs *regs); -extern int handle_ldf_stq(u32 insn, struct pt_regs *regs); - void do_illegal_instruction(struct pt_regs *regs) { + enum ctx_state prev_state = exception_enter(); unsigned long pc = regs->tpc; unsigned long tstate = regs->tstate; u32 insn; @@ -2429,7 +2443,7 @@ void do_illegal_instruction(struct pt_regs *regs) if (notify_die(DIE_TRAP, "illegal instruction", regs, 0, 0x10, SIGILL) == NOTIFY_STOP) - return; + goto out; if (tstate & TSTATE_PRIV) die_if_kernel("Kernel illegal instruction", regs); @@ -2438,14 +2452,14 @@ void do_illegal_instruction(struct pt_regs *regs) if (get_user(insn, (u32 __user *) pc) != -EFAULT) { if ((insn & 0xc1ffc000) == 0x81700000) /* POPC */ { if (handle_popc(insn, regs)) - return; + goto out; } else if ((insn & 0xc1580000) == 0xc1100000) /* LDQ/STQ */ { if (handle_ldf_stq(insn, regs)) - return; + goto out; } else if (tlb_type == hypervisor) { if ((insn & VIS_OPCODE_MASK) == VIS_OPCODE_VAL) { if (!vis_emul(regs, insn)) - return; + goto out; } else { struct fpustate *f = FPUSTATE; @@ -2455,7 +2469,7 @@ void do_illegal_instruction(struct pt_regs *regs) * Trap in the %fsr to unimplemented_FPop. */ if (do_mathemu(regs, f, true)) - return; + goto out; } } } @@ -2465,21 +2479,22 @@ void do_illegal_instruction(struct pt_regs *regs) info.si_addr = (void __user *)pc; info.si_trapno = 0; force_sig_info(SIGILL, &info, current); +out: + exception_exit(prev_state); } -extern void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn); - void mem_address_unaligned(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr) { + enum ctx_state prev_state = exception_enter(); siginfo_t info; if (notify_die(DIE_TRAP, "memory address unaligned", regs, 0, 0x34, SIGSEGV) == NOTIFY_STOP) - return; + goto out; if (regs->tstate & TSTATE_PRIV) { kernel_unaligned_trap(regs, *((unsigned int *)regs->tpc)); - return; + goto out; } info.si_signo = SIGBUS; info.si_errno = 0; @@ -2487,6 +2502,8 @@ void mem_address_unaligned(struct pt_regs *regs, unsigned long sfar, unsigned lo info.si_addr = (void __user *)sfar; info.si_trapno = 0; force_sig_info(SIGBUS, &info, current); +out: + exception_exit(prev_state); } void sun4v_do_mna(struct pt_regs *regs, unsigned long addr, unsigned long type_ctx) @@ -2511,11 +2528,12 @@ void sun4v_do_mna(struct pt_regs *regs, unsigned long addr, unsigned long type_c void do_privop(struct pt_regs *regs) { + enum ctx_state prev_state = exception_enter(); siginfo_t info; if (notify_die(DIE_TRAP, "privileged operation", regs, 0, 0x11, SIGILL) == NOTIFY_STOP) - return; + goto out; if (test_thread_flag(TIF_32BIT)) { regs->tpc &= 0xffffffff; @@ -2527,6 +2545,8 @@ void do_privop(struct pt_regs *regs) info.si_addr = (void __user *)regs->tpc; info.si_trapno = 0; force_sig_info(SIGILL, &info, current); +out: + exception_exit(prev_state); } void do_privact(struct pt_regs *regs) @@ -2537,99 +2557,116 @@ void do_privact(struct pt_regs *regs) /* Trap level 1 stuff or other traps we should never see... */ void do_cee(struct pt_regs *regs) { + exception_enter(); die_if_kernel("TL0: Cache Error Exception", regs); } void do_cee_tl1(struct pt_regs *regs) { + exception_enter(); dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); die_if_kernel("TL1: Cache Error Exception", regs); } void do_dae_tl1(struct pt_regs *regs) { + exception_enter(); dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); die_if_kernel("TL1: Data Access Exception", regs); } void do_iae_tl1(struct pt_regs *regs) { + exception_enter(); dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); die_if_kernel("TL1: Instruction Access Exception", regs); } void do_div0_tl1(struct pt_regs *regs) { + exception_enter(); dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); die_if_kernel("TL1: DIV0 Exception", regs); } void do_fpdis_tl1(struct pt_regs *regs) { + exception_enter(); dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); die_if_kernel("TL1: FPU Disabled", regs); } void do_fpieee_tl1(struct pt_regs *regs) { + exception_enter(); dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); die_if_kernel("TL1: FPU IEEE Exception", regs); } void do_fpother_tl1(struct pt_regs *regs) { + exception_enter(); dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); die_if_kernel("TL1: FPU Other Exception", regs); } void do_ill_tl1(struct pt_regs *regs) { + exception_enter(); dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); die_if_kernel("TL1: Illegal Instruction Exception", regs); } void do_irq_tl1(struct pt_regs *regs) { + exception_enter(); dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); die_if_kernel("TL1: IRQ Exception", regs); } void do_lddfmna_tl1(struct pt_regs *regs) { + exception_enter(); dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); die_if_kernel("TL1: LDDF Exception", regs); } void do_stdfmna_tl1(struct pt_regs *regs) { + exception_enter(); dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); die_if_kernel("TL1: STDF Exception", regs); } void do_paw(struct pt_regs *regs) { + exception_enter(); die_if_kernel("TL0: Phys Watchpoint Exception", regs); } void do_paw_tl1(struct pt_regs *regs) { + exception_enter(); dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); die_if_kernel("TL1: Phys Watchpoint Exception", regs); } void do_vaw(struct pt_regs *regs) { + exception_enter(); die_if_kernel("TL0: Virt Watchpoint Exception", regs); } void do_vaw_tl1(struct pt_regs *regs) { + exception_enter(); dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); die_if_kernel("TL1: Virt Watchpoint Exception", regs); } void do_tof_tl1(struct pt_regs *regs) { + exception_enter(); dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); die_if_kernel("TL1: Tag Overflow Exception", regs); } @@ -2688,8 +2725,8 @@ void __init trap_init(void) TI_PRE_COUNT != offsetof(struct thread_info, preempt_count) || TI_NEW_CHILD != offsetof(struct thread_info, new_child) || - TI_SYS_NOERROR != offsetof(struct thread_info, - syscall_noerror) || + TI_CURRENT_DS != offsetof(struct thread_info, + current_ds) || TI_RESTART_BLOCK != offsetof(struct thread_info, restart_block) || TI_KUNA_REGS != offsetof(struct thread_info, diff --git a/arch/sparc/kernel/tsb.S b/arch/sparc/kernel/tsb.S index d4bdc7a6237..14158d40ba7 100644 --- a/arch/sparc/kernel/tsb.S +++ b/arch/sparc/kernel/tsb.S @@ -75,7 +75,7 @@ tsb_miss_page_table_walk: mov 512, %g7 andn %g5, 0x7, %g5 sllx %g7, %g6, %g7 - srlx %g4, HPAGE_SHIFT, %g6 + srlx %g4, REAL_HPAGE_SHIFT, %g6 sub %g7, 1, %g7 and %g6, %g7, %g6 sllx %g6, 4, %g6 @@ -136,12 +136,43 @@ tsb_miss_page_table_walk_sun4v_fastpath: nop /* It is a huge page, use huge page TSB entry address we - * calculated above. + * calculated above. If the huge page TSB has not been + * allocated, setup a trap stack and call hugetlb_setup() + * to do so, then return from the trap to replay the TLB + * miss. + * + * This is necessary to handle the case of transparent huge + * pages where we don't really have a non-atomic context + * in which to allocate the hugepage TSB hash table. When + * the 'mm' faults in the hugepage for the first time, we + * thus handle it here. This also makes sure that we can + * allocate the TSB hash table on the correct NUMA node. */ TRAP_LOAD_TRAP_BLOCK(%g7, %g2) - ldx [%g7 + TRAP_PER_CPU_TSB_HUGE_TEMP], %g2 - cmp %g2, -1 - movne %xcc, %g2, %g1 + ldx [%g7 + TRAP_PER_CPU_TSB_HUGE_TEMP], %g1 + cmp %g1, -1 + bne,pt %xcc, 60f + nop + +661: rdpr %pstate, %g5 + wrpr %g5, PSTATE_AG | PSTATE_MG, %pstate + .section .sun4v_2insn_patch, "ax" + .word 661b + SET_GL(1) + nop + .previous + + rdpr %tl, %g3 + cmp %g3, 1 + bne,pn %xcc, winfix_trampoline + nop + ba,pt %xcc, etrap + rd %pc, %g7 + call hugetlb_setup + add %sp, PTREGS_OFF, %o0 + ba,pt %xcc, rtrap + nop + 60: #endif diff --git a/arch/sparc/kernel/unaligned_32.c b/arch/sparc/kernel/unaligned_32.c index c0ec8978619..c5c61b3c6b5 100644 --- a/arch/sparc/kernel/unaligned_32.c +++ b/arch/sparc/kernel/unaligned_32.c @@ -16,6 +16,10 @@ #include <linux/smp.h> #include <linux/perf_event.h> +#include <asm/setup.h> + +#include "kernel.h" + enum direction { load, /* ld, ldd, ldh, ldsh */ store, /* st, std, sth, stsh */ diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c index f81d038f734..62098a89bbb 100644 --- a/arch/sparc/kernel/unaligned_64.c +++ b/arch/sparc/kernel/unaligned_64.c @@ -21,8 +21,13 @@ #include <linux/bitops.h> #include <linux/perf_event.h> #include <linux/ratelimit.h> +#include <linux/context_tracking.h> #include <asm/fpumacro.h> #include <asm/cacheflush.h> +#include <asm/setup.h> + +#include "entry.h" +#include "kernel.h" enum direction { load, /* ld, ldd, ldh, ldsh */ @@ -113,21 +118,24 @@ static inline long sign_extend_imm13(long imm) static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs) { - unsigned long value; + unsigned long value, fp; if (reg < 16) return (!reg ? 0 : regs->u_regs[reg]); + + fp = regs->u_regs[UREG_FP]; + if (regs->tstate & TSTATE_PRIV) { struct reg_window *win; - win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS); + win = (struct reg_window *)(fp + STACK_BIAS); value = win->locals[reg - 16]; - } else if (test_thread_flag(TIF_32BIT)) { + } else if (!test_thread_64bit_stack(fp)) { struct reg_window32 __user *win32; - win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP])); + win32 = (struct reg_window32 __user *)((unsigned long)((u32)fp)); get_user(value, &win32->locals[reg - 16]); } else { struct reg_window __user *win; - win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS); + win = (struct reg_window __user *)(fp + STACK_BIAS); get_user(value, &win->locals[reg - 16]); } return value; @@ -135,19 +143,24 @@ static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs) static unsigned long *fetch_reg_addr(unsigned int reg, struct pt_regs *regs) { + unsigned long fp; + if (reg < 16) return ®s->u_regs[reg]; + + fp = regs->u_regs[UREG_FP]; + if (regs->tstate & TSTATE_PRIV) { struct reg_window *win; - win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS); + win = (struct reg_window *)(fp + STACK_BIAS); return &win->locals[reg - 16]; - } else if (test_thread_flag(TIF_32BIT)) { + } else if (!test_thread_64bit_stack(fp)) { struct reg_window32 *win32; - win32 = (struct reg_window32 *)((unsigned long)((u32)regs->u_regs[UREG_FP])); + win32 = (struct reg_window32 *)((unsigned long)((u32)fp)); return (unsigned long *)&win32->locals[reg - 16]; } else { struct reg_window *win; - win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS); + win = (struct reg_window *)(fp + STACK_BIAS); return &win->locals[reg - 16]; } } @@ -155,17 +168,23 @@ static unsigned long *fetch_reg_addr(unsigned int reg, struct pt_regs *regs) unsigned long compute_effective_address(struct pt_regs *regs, unsigned int insn, unsigned int rd) { + int from_kernel = (regs->tstate & TSTATE_PRIV) != 0; unsigned int rs1 = (insn >> 14) & 0x1f; unsigned int rs2 = insn & 0x1f; - int from_kernel = (regs->tstate & TSTATE_PRIV) != 0; + unsigned long addr; if (insn & 0x2000) { maybe_flush_windows(rs1, 0, rd, from_kernel); - return (fetch_reg(rs1, regs) + sign_extend_imm13(insn)); + addr = (fetch_reg(rs1, regs) + sign_extend_imm13(insn)); } else { maybe_flush_windows(rs1, rs2, rd, from_kernel); - return (fetch_reg(rs1, regs) + fetch_reg(rs2, regs)); + addr = (fetch_reg(rs1, regs) + fetch_reg(rs2, regs)); } + + if (!from_kernel && test_thread_flag(TIF_32BIT)) + addr &= 0xffffffff; + + return addr; } /* This is just to make gcc think die_if_kernel does return... */ @@ -392,13 +411,15 @@ int handle_popc(u32 insn, struct pt_regs *regs) if (rd) regs->u_regs[rd] = ret; } else { - if (test_thread_flag(TIF_32BIT)) { + unsigned long fp = regs->u_regs[UREG_FP]; + + if (!test_thread_64bit_stack(fp)) { struct reg_window32 __user *win32; - win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP])); + win32 = (struct reg_window32 __user *)((unsigned long)((u32)fp)); put_user(ret, &win32->locals[rd - 16]); } else { struct reg_window __user *win; - win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS); + win = (struct reg_window __user *)(fp + STACK_BIAS); put_user(ret, &win->locals[rd - 16]); } } @@ -408,9 +429,6 @@ int handle_popc(u32 insn, struct pt_regs *regs) extern void do_fpother(struct pt_regs *regs); extern void do_privact(struct pt_regs *regs); -extern void spitfire_data_access_exception(struct pt_regs *regs, - unsigned long sfsr, - unsigned long sfar); extern void sun4v_data_access_exception(struct pt_regs *regs, unsigned long addr, unsigned long type_ctx); @@ -554,7 +572,7 @@ void handle_ld_nf(u32 insn, struct pt_regs *regs) reg[0] = 0; if ((insn & 0x780000) == 0x180000) reg[1] = 0; - } else if (test_thread_flag(TIF_32BIT)) { + } else if (!test_thread_64bit_stack(regs->u_regs[UREG_FP])) { put_user(0, (int __user *) reg); if ((insn & 0x780000) == 0x180000) put_user(0, ((int __user *) reg) + 1); @@ -568,6 +586,7 @@ void handle_ld_nf(u32 insn, struct pt_regs *regs) void handle_lddfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr) { + enum ctx_state prev_state = exception_enter(); unsigned long pc = regs->tpc; unsigned long tstate = regs->tstate; u32 insn; @@ -622,13 +641,16 @@ daex: sun4v_data_access_exception(regs, sfar, sfsr); else spitfire_data_access_exception(regs, sfsr, sfar); - return; + goto out; } advance(regs); +out: + exception_exit(prev_state); } void handle_stdfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr) { + enum ctx_state prev_state = exception_enter(); unsigned long pc = regs->tpc; unsigned long tstate = regs->tstate; u32 insn; @@ -670,7 +692,9 @@ daex: sun4v_data_access_exception(regs, sfar, sfsr); else spitfire_data_access_exception(regs, sfsr, sfar); - return; + goto out; } advance(regs); +out: + exception_exit(prev_state); } diff --git a/arch/sparc/kernel/us2e_cpufreq.c b/arch/sparc/kernel/us2e_cpufreq.c deleted file mode 100644 index 489fc15f319..00000000000 --- a/arch/sparc/kernel/us2e_cpufreq.c +++ /dev/null @@ -1,413 +0,0 @@ -/* us2e_cpufreq.c: UltraSPARC-IIe cpu frequency support - * - * Copyright (C) 2003 David S. Miller (davem@redhat.com) - * - * Many thanks to Dominik Brodowski for fixing up the cpufreq - * infrastructure in order to make this driver easier to implement. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/smp.h> -#include <linux/cpufreq.h> -#include <linux/threads.h> -#include <linux/slab.h> -#include <linux/delay.h> -#include <linux/init.h> - -#include <asm/asi.h> -#include <asm/timer.h> - -static struct cpufreq_driver *cpufreq_us2e_driver; - -struct us2e_freq_percpu_info { - struct cpufreq_frequency_table table[6]; -}; - -/* Indexed by cpu number. */ -static struct us2e_freq_percpu_info *us2e_freq_table; - -#define HBIRD_MEM_CNTL0_ADDR 0x1fe0000f010UL -#define HBIRD_ESTAR_MODE_ADDR 0x1fe0000f080UL - -/* UltraSPARC-IIe has five dividers: 1, 2, 4, 6, and 8. These are controlled - * in the ESTAR mode control register. - */ -#define ESTAR_MODE_DIV_1 0x0000000000000000UL -#define ESTAR_MODE_DIV_2 0x0000000000000001UL -#define ESTAR_MODE_DIV_4 0x0000000000000003UL -#define ESTAR_MODE_DIV_6 0x0000000000000002UL -#define ESTAR_MODE_DIV_8 0x0000000000000004UL -#define ESTAR_MODE_DIV_MASK 0x0000000000000007UL - -#define MCTRL0_SREFRESH_ENAB 0x0000000000010000UL -#define MCTRL0_REFR_COUNT_MASK 0x0000000000007f00UL -#define MCTRL0_REFR_COUNT_SHIFT 8 -#define MCTRL0_REFR_INTERVAL 7800 -#define MCTRL0_REFR_CLKS_P_CNT 64 - -static unsigned long read_hbreg(unsigned long addr) -{ - unsigned long ret; - - __asm__ __volatile__("ldxa [%1] %2, %0" - : "=&r" (ret) - : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); - return ret; -} - -static void write_hbreg(unsigned long addr, unsigned long val) -{ - __asm__ __volatile__("stxa %0, [%1] %2\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (val), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E) - : "memory"); - if (addr == HBIRD_ESTAR_MODE_ADDR) { - /* Need to wait 16 clock cycles for the PLL to lock. */ - udelay(1); - } -} - -static void self_refresh_ctl(int enable) -{ - unsigned long mctrl = read_hbreg(HBIRD_MEM_CNTL0_ADDR); - - if (enable) - mctrl |= MCTRL0_SREFRESH_ENAB; - else - mctrl &= ~MCTRL0_SREFRESH_ENAB; - write_hbreg(HBIRD_MEM_CNTL0_ADDR, mctrl); - (void) read_hbreg(HBIRD_MEM_CNTL0_ADDR); -} - -static void frob_mem_refresh(int cpu_slowing_down, - unsigned long clock_tick, - unsigned long old_divisor, unsigned long divisor) -{ - unsigned long old_refr_count, refr_count, mctrl; - - refr_count = (clock_tick * MCTRL0_REFR_INTERVAL); - refr_count /= (MCTRL0_REFR_CLKS_P_CNT * divisor * 1000000000UL); - - mctrl = read_hbreg(HBIRD_MEM_CNTL0_ADDR); - old_refr_count = (mctrl & MCTRL0_REFR_COUNT_MASK) - >> MCTRL0_REFR_COUNT_SHIFT; - - mctrl &= ~MCTRL0_REFR_COUNT_MASK; - mctrl |= refr_count << MCTRL0_REFR_COUNT_SHIFT; - write_hbreg(HBIRD_MEM_CNTL0_ADDR, mctrl); - mctrl = read_hbreg(HBIRD_MEM_CNTL0_ADDR); - - if (cpu_slowing_down && !(mctrl & MCTRL0_SREFRESH_ENAB)) { - unsigned long usecs; - - /* We have to wait for both refresh counts (old - * and new) to go to zero. - */ - usecs = (MCTRL0_REFR_CLKS_P_CNT * - (refr_count + old_refr_count) * - 1000000UL * - old_divisor) / clock_tick; - udelay(usecs + 1UL); - } -} - -static void us2e_transition(unsigned long estar, unsigned long new_bits, - unsigned long clock_tick, - unsigned long old_divisor, unsigned long divisor) -{ - unsigned long flags; - - local_irq_save(flags); - - estar &= ~ESTAR_MODE_DIV_MASK; - - /* This is based upon the state transition diagram in the IIe manual. */ - if (old_divisor == 2 && divisor == 1) { - self_refresh_ctl(0); - write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits); - frob_mem_refresh(0, clock_tick, old_divisor, divisor); - } else if (old_divisor == 1 && divisor == 2) { - frob_mem_refresh(1, clock_tick, old_divisor, divisor); - write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits); - self_refresh_ctl(1); - } else if (old_divisor == 1 && divisor > 2) { - us2e_transition(estar, ESTAR_MODE_DIV_2, clock_tick, - 1, 2); - us2e_transition(estar, new_bits, clock_tick, - 2, divisor); - } else if (old_divisor > 2 && divisor == 1) { - us2e_transition(estar, ESTAR_MODE_DIV_2, clock_tick, - old_divisor, 2); - us2e_transition(estar, new_bits, clock_tick, - 2, divisor); - } else if (old_divisor < divisor) { - frob_mem_refresh(0, clock_tick, old_divisor, divisor); - write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits); - } else if (old_divisor > divisor) { - write_hbreg(HBIRD_ESTAR_MODE_ADDR, estar | new_bits); - frob_mem_refresh(1, clock_tick, old_divisor, divisor); - } else { - BUG(); - } - - local_irq_restore(flags); -} - -static unsigned long index_to_estar_mode(unsigned int index) -{ - switch (index) { - case 0: - return ESTAR_MODE_DIV_1; - - case 1: - return ESTAR_MODE_DIV_2; - - case 2: - return ESTAR_MODE_DIV_4; - - case 3: - return ESTAR_MODE_DIV_6; - - case 4: - return ESTAR_MODE_DIV_8; - - default: - BUG(); - } -} - -static unsigned long index_to_divisor(unsigned int index) -{ - switch (index) { - case 0: - return 1; - - case 1: - return 2; - - case 2: - return 4; - - case 3: - return 6; - - case 4: - return 8; - - default: - BUG(); - } -} - -static unsigned long estar_to_divisor(unsigned long estar) -{ - unsigned long ret; - - switch (estar & ESTAR_MODE_DIV_MASK) { - case ESTAR_MODE_DIV_1: - ret = 1; - break; - case ESTAR_MODE_DIV_2: - ret = 2; - break; - case ESTAR_MODE_DIV_4: - ret = 4; - break; - case ESTAR_MODE_DIV_6: - ret = 6; - break; - case ESTAR_MODE_DIV_8: - ret = 8; - break; - default: - BUG(); - } - - return ret; -} - -static unsigned int us2e_freq_get(unsigned int cpu) -{ - cpumask_t cpus_allowed; - unsigned long clock_tick, estar; - - if (!cpu_online(cpu)) - return 0; - - cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current)); - set_cpus_allowed_ptr(current, cpumask_of(cpu)); - - clock_tick = sparc64_get_clock_tick(cpu) / 1000; - estar = read_hbreg(HBIRD_ESTAR_MODE_ADDR); - - set_cpus_allowed_ptr(current, &cpus_allowed); - - return clock_tick / estar_to_divisor(estar); -} - -static void us2e_set_cpu_divider_index(unsigned int cpu, unsigned int index) -{ - unsigned long new_bits, new_freq; - unsigned long clock_tick, divisor, old_divisor, estar; - cpumask_t cpus_allowed; - struct cpufreq_freqs freqs; - - if (!cpu_online(cpu)) - return; - - cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current)); - set_cpus_allowed_ptr(current, cpumask_of(cpu)); - - new_freq = clock_tick = sparc64_get_clock_tick(cpu) / 1000; - new_bits = index_to_estar_mode(index); - divisor = index_to_divisor(index); - new_freq /= divisor; - - estar = read_hbreg(HBIRD_ESTAR_MODE_ADDR); - - old_divisor = estar_to_divisor(estar); - - freqs.old = clock_tick / old_divisor; - freqs.new = new_freq; - freqs.cpu = cpu; - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - - if (old_divisor != divisor) - us2e_transition(estar, new_bits, clock_tick * 1000, - old_divisor, divisor); - - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - - set_cpus_allowed_ptr(current, &cpus_allowed); -} - -static int us2e_freq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int new_index = 0; - - if (cpufreq_frequency_table_target(policy, - &us2e_freq_table[policy->cpu].table[0], - target_freq, relation, &new_index)) - return -EINVAL; - - us2e_set_cpu_divider_index(policy->cpu, new_index); - - return 0; -} - -static int us2e_freq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, - &us2e_freq_table[policy->cpu].table[0]); -} - -static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy) -{ - unsigned int cpu = policy->cpu; - unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000; - struct cpufreq_frequency_table *table = - &us2e_freq_table[cpu].table[0]; - - table[0].index = 0; - table[0].frequency = clock_tick / 1; - table[1].index = 1; - table[1].frequency = clock_tick / 2; - table[2].index = 2; - table[2].frequency = clock_tick / 4; - table[2].index = 3; - table[2].frequency = clock_tick / 6; - table[2].index = 4; - table[2].frequency = clock_tick / 8; - table[2].index = 5; - table[3].frequency = CPUFREQ_TABLE_END; - - policy->cpuinfo.transition_latency = 0; - policy->cur = clock_tick; - - return cpufreq_frequency_table_cpuinfo(policy, table); -} - -static int us2e_freq_cpu_exit(struct cpufreq_policy *policy) -{ - if (cpufreq_us2e_driver) - us2e_set_cpu_divider_index(policy->cpu, 0); - - return 0; -} - -static int __init us2e_freq_init(void) -{ - unsigned long manuf, impl, ver; - int ret; - - if (tlb_type != spitfire) - return -ENODEV; - - __asm__("rdpr %%ver, %0" : "=r" (ver)); - manuf = ((ver >> 48) & 0xffff); - impl = ((ver >> 32) & 0xffff); - - if (manuf == 0x17 && impl == 0x13) { - struct cpufreq_driver *driver; - - ret = -ENOMEM; - driver = kzalloc(sizeof(struct cpufreq_driver), GFP_KERNEL); - if (!driver) - goto err_out; - - us2e_freq_table = kzalloc( - (NR_CPUS * sizeof(struct us2e_freq_percpu_info)), - GFP_KERNEL); - if (!us2e_freq_table) - goto err_out; - - driver->init = us2e_freq_cpu_init; - driver->verify = us2e_freq_verify; - driver->target = us2e_freq_target; - driver->get = us2e_freq_get; - driver->exit = us2e_freq_cpu_exit; - driver->owner = THIS_MODULE, - strcpy(driver->name, "UltraSPARC-IIe"); - - cpufreq_us2e_driver = driver; - ret = cpufreq_register_driver(driver); - if (ret) - goto err_out; - - return 0; - -err_out: - if (driver) { - kfree(driver); - cpufreq_us2e_driver = NULL; - } - kfree(us2e_freq_table); - us2e_freq_table = NULL; - return ret; - } - - return -ENODEV; -} - -static void __exit us2e_freq_exit(void) -{ - if (cpufreq_us2e_driver) { - cpufreq_unregister_driver(cpufreq_us2e_driver); - kfree(cpufreq_us2e_driver); - cpufreq_us2e_driver = NULL; - kfree(us2e_freq_table); - us2e_freq_table = NULL; - } -} - -MODULE_AUTHOR("David S. Miller <davem@redhat.com>"); -MODULE_DESCRIPTION("cpufreq driver for UltraSPARC-IIe"); -MODULE_LICENSE("GPL"); - -module_init(us2e_freq_init); -module_exit(us2e_freq_exit); diff --git a/arch/sparc/kernel/us3_cpufreq.c b/arch/sparc/kernel/us3_cpufreq.c deleted file mode 100644 index eb1624b931d..00000000000 --- a/arch/sparc/kernel/us3_cpufreq.c +++ /dev/null @@ -1,274 +0,0 @@ -/* us3_cpufreq.c: UltraSPARC-III cpu frequency support - * - * Copyright (C) 2003 David S. Miller (davem@redhat.com) - * - * Many thanks to Dominik Brodowski for fixing up the cpufreq - * infrastructure in order to make this driver easier to implement. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/smp.h> -#include <linux/cpufreq.h> -#include <linux/threads.h> -#include <linux/slab.h> -#include <linux/init.h> - -#include <asm/head.h> -#include <asm/timer.h> - -static struct cpufreq_driver *cpufreq_us3_driver; - -struct us3_freq_percpu_info { - struct cpufreq_frequency_table table[4]; -}; - -/* Indexed by cpu number. */ -static struct us3_freq_percpu_info *us3_freq_table; - -/* UltraSPARC-III has three dividers: 1, 2, and 32. These are controlled - * in the Safari config register. - */ -#define SAFARI_CFG_DIV_1 0x0000000000000000UL -#define SAFARI_CFG_DIV_2 0x0000000040000000UL -#define SAFARI_CFG_DIV_32 0x0000000080000000UL -#define SAFARI_CFG_DIV_MASK 0x00000000C0000000UL - -static unsigned long read_safari_cfg(void) -{ - unsigned long ret; - - __asm__ __volatile__("ldxa [%%g0] %1, %0" - : "=&r" (ret) - : "i" (ASI_SAFARI_CONFIG)); - return ret; -} - -static void write_safari_cfg(unsigned long val) -{ - __asm__ __volatile__("stxa %0, [%%g0] %1\n\t" - "membar #Sync" - : /* no outputs */ - : "r" (val), "i" (ASI_SAFARI_CONFIG) - : "memory"); -} - -static unsigned long get_current_freq(unsigned int cpu, unsigned long safari_cfg) -{ - unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000; - unsigned long ret; - - switch (safari_cfg & SAFARI_CFG_DIV_MASK) { - case SAFARI_CFG_DIV_1: - ret = clock_tick / 1; - break; - case SAFARI_CFG_DIV_2: - ret = clock_tick / 2; - break; - case SAFARI_CFG_DIV_32: - ret = clock_tick / 32; - break; - default: - BUG(); - } - - return ret; -} - -static unsigned int us3_freq_get(unsigned int cpu) -{ - cpumask_t cpus_allowed; - unsigned long reg; - unsigned int ret; - - if (!cpu_online(cpu)) - return 0; - - cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current)); - set_cpus_allowed_ptr(current, cpumask_of(cpu)); - - reg = read_safari_cfg(); - ret = get_current_freq(cpu, reg); - - set_cpus_allowed_ptr(current, &cpus_allowed); - - return ret; -} - -static void us3_set_cpu_divider_index(unsigned int cpu, unsigned int index) -{ - unsigned long new_bits, new_freq, reg; - cpumask_t cpus_allowed; - struct cpufreq_freqs freqs; - - if (!cpu_online(cpu)) - return; - - cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current)); - set_cpus_allowed_ptr(current, cpumask_of(cpu)); - - new_freq = sparc64_get_clock_tick(cpu) / 1000; - switch (index) { - case 0: - new_bits = SAFARI_CFG_DIV_1; - new_freq /= 1; - break; - case 1: - new_bits = SAFARI_CFG_DIV_2; - new_freq /= 2; - break; - case 2: - new_bits = SAFARI_CFG_DIV_32; - new_freq /= 32; - break; - - default: - BUG(); - } - - reg = read_safari_cfg(); - - freqs.old = get_current_freq(cpu, reg); - freqs.new = new_freq; - freqs.cpu = cpu; - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); - - reg &= ~SAFARI_CFG_DIV_MASK; - reg |= new_bits; - write_safari_cfg(reg); - - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); - - set_cpus_allowed_ptr(current, &cpus_allowed); -} - -static int us3_freq_target(struct cpufreq_policy *policy, - unsigned int target_freq, - unsigned int relation) -{ - unsigned int new_index = 0; - - if (cpufreq_frequency_table_target(policy, - &us3_freq_table[policy->cpu].table[0], - target_freq, - relation, - &new_index)) - return -EINVAL; - - us3_set_cpu_divider_index(policy->cpu, new_index); - - return 0; -} - -static int us3_freq_verify(struct cpufreq_policy *policy) -{ - return cpufreq_frequency_table_verify(policy, - &us3_freq_table[policy->cpu].table[0]); -} - -static int __init us3_freq_cpu_init(struct cpufreq_policy *policy) -{ - unsigned int cpu = policy->cpu; - unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000; - struct cpufreq_frequency_table *table = - &us3_freq_table[cpu].table[0]; - - table[0].index = 0; - table[0].frequency = clock_tick / 1; - table[1].index = 1; - table[1].frequency = clock_tick / 2; - table[2].index = 2; - table[2].frequency = clock_tick / 32; - table[3].index = 0; - table[3].frequency = CPUFREQ_TABLE_END; - - policy->cpuinfo.transition_latency = 0; - policy->cur = clock_tick; - - return cpufreq_frequency_table_cpuinfo(policy, table); -} - -static int us3_freq_cpu_exit(struct cpufreq_policy *policy) -{ - if (cpufreq_us3_driver) - us3_set_cpu_divider_index(policy->cpu, 0); - - return 0; -} - -static int __init us3_freq_init(void) -{ - unsigned long manuf, impl, ver; - int ret; - - if (tlb_type != cheetah && tlb_type != cheetah_plus) - return -ENODEV; - - __asm__("rdpr %%ver, %0" : "=r" (ver)); - manuf = ((ver >> 48) & 0xffff); - impl = ((ver >> 32) & 0xffff); - - if (manuf == CHEETAH_MANUF && - (impl == CHEETAH_IMPL || - impl == CHEETAH_PLUS_IMPL || - impl == JAGUAR_IMPL || - impl == PANTHER_IMPL)) { - struct cpufreq_driver *driver; - - ret = -ENOMEM; - driver = kzalloc(sizeof(struct cpufreq_driver), GFP_KERNEL); - if (!driver) - goto err_out; - - us3_freq_table = kzalloc( - (NR_CPUS * sizeof(struct us3_freq_percpu_info)), - GFP_KERNEL); - if (!us3_freq_table) - goto err_out; - - driver->init = us3_freq_cpu_init; - driver->verify = us3_freq_verify; - driver->target = us3_freq_target; - driver->get = us3_freq_get; - driver->exit = us3_freq_cpu_exit; - driver->owner = THIS_MODULE, - strcpy(driver->name, "UltraSPARC-III"); - - cpufreq_us3_driver = driver; - ret = cpufreq_register_driver(driver); - if (ret) - goto err_out; - - return 0; - -err_out: - if (driver) { - kfree(driver); - cpufreq_us3_driver = NULL; - } - kfree(us3_freq_table); - us3_freq_table = NULL; - return ret; - } - - return -ENODEV; -} - -static void __exit us3_freq_exit(void) -{ - if (cpufreq_us3_driver) { - cpufreq_unregister_driver(cpufreq_us3_driver); - kfree(cpufreq_us3_driver); - cpufreq_us3_driver = NULL; - kfree(us3_freq_table); - us3_freq_table = NULL; - } -} - -MODULE_AUTHOR("David S. Miller <davem@redhat.com>"); -MODULE_DESCRIPTION("cpufreq driver for UltraSPARC-III"); -MODULE_LICENSE("GPL"); - -module_init(us3_freq_init); -module_exit(us3_freq_exit); diff --git a/arch/sparc/kernel/vio.c b/arch/sparc/kernel/vio.c index 3e244f31e56..8647fcc5ca6 100644 --- a/arch/sparc/kernel/vio.c +++ b/arch/sparc/kernel/vio.c @@ -342,6 +342,7 @@ static void vio_remove(struct mdesc_handle *hp, u64 node) printk(KERN_INFO "VIO: Removing device %s\n", dev_name(dev)); device_unregister(dev); + put_device(dev); } } diff --git a/arch/sparc/kernel/visemul.c b/arch/sparc/kernel/visemul.c index 08e074b7eb6..c096c624ac4 100644 --- a/arch/sparc/kernel/visemul.c +++ b/arch/sparc/kernel/visemul.c @@ -149,21 +149,24 @@ static inline void maybe_flush_windows(unsigned int rs1, unsigned int rs2, static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs) { - unsigned long value; + unsigned long value, fp; if (reg < 16) return (!reg ? 0 : regs->u_regs[reg]); + + fp = regs->u_regs[UREG_FP]; + if (regs->tstate & TSTATE_PRIV) { struct reg_window *win; - win = (struct reg_window *)(regs->u_regs[UREG_FP] + STACK_BIAS); + win = (struct reg_window *)(fp + STACK_BIAS); value = win->locals[reg - 16]; - } else if (test_thread_flag(TIF_32BIT)) { + } else if (!test_thread_64bit_stack(fp)) { struct reg_window32 __user *win32; - win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP])); + win32 = (struct reg_window32 __user *)((unsigned long)((u32)fp)); get_user(value, &win32->locals[reg - 16]); } else { struct reg_window __user *win; - win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS); + win = (struct reg_window __user *)(fp + STACK_BIAS); get_user(value, &win->locals[reg - 16]); } return value; @@ -172,16 +175,18 @@ static unsigned long fetch_reg(unsigned int reg, struct pt_regs *regs) static inline unsigned long __user *__fetch_reg_addr_user(unsigned int reg, struct pt_regs *regs) { + unsigned long fp = regs->u_regs[UREG_FP]; + BUG_ON(reg < 16); BUG_ON(regs->tstate & TSTATE_PRIV); - if (test_thread_flag(TIF_32BIT)) { + if (!test_thread_64bit_stack(fp)) { struct reg_window32 __user *win32; - win32 = (struct reg_window32 __user *)((unsigned long)((u32)regs->u_regs[UREG_FP])); + win32 = (struct reg_window32 __user *)((unsigned long)((u32)fp)); return (unsigned long __user *)&win32->locals[reg - 16]; } else { struct reg_window __user *win; - win = (struct reg_window __user *)(regs->u_regs[UREG_FP] + STACK_BIAS); + win = (struct reg_window __user *)(fp + STACK_BIAS); return &win->locals[reg - 16]; } } @@ -204,7 +209,7 @@ static void store_reg(struct pt_regs *regs, unsigned long val, unsigned long rd) } else { unsigned long __user *rd_user = __fetch_reg_addr_user(rd, regs); - if (test_thread_flag(TIF_32BIT)) + if (!test_thread_64bit_stack(regs->u_regs[UREG_FP])) __put_user((u32)val, (u32 __user *)rd_user); else __put_user(val, rd_user); diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S index 89c2c29f154..932ff90fd76 100644 --- a/arch/sparc/kernel/vmlinux.lds.S +++ b/arch/sparc/kernel/vmlinux.lds.S @@ -122,6 +122,11 @@ SECTIONS *(.swapper_4m_tsb_phys_patch) __swapper_4m_tsb_phys_patch_end = .; } + .page_offset_shift_patch : { + __page_offset_shift_patch = .; + *(.page_offset_shift_patch) + __page_offset_shift_patch_end = .; + } .popc_3insn_patch : { __popc_3insn_patch = .; *(.popc_3insn_patch) @@ -132,6 +137,11 @@ SECTIONS *(.popc_6insn_patch) __popc_6insn_patch_end = .; } + .pause_3insn_patch : { + __pause_3insn_patch = .; + *(.pause_3insn_patch) + __pause_3insn_patch_end = .; + } PERCPU_SECTION(SMP_CACHE_BYTES) . = ALIGN(PAGE_SIZE); diff --git a/arch/sparc/kernel/windows.c b/arch/sparc/kernel/windows.c index 3107381e576..87bab0a3857 100644 --- a/arch/sparc/kernel/windows.c +++ b/arch/sparc/kernel/windows.c @@ -10,8 +10,11 @@ #include <linux/mm.h> #include <linux/smp.h> +#include <asm/cacheflush.h> #include <asm/uaccess.h> +#include "kernel.h" + /* Do save's until all user register windows are out of the cpu. */ void flush_user_windows(void) { diff --git a/arch/sparc/kernel/winfixup.S b/arch/sparc/kernel/winfixup.S index a6b0863c27d..1e67ce95836 100644 --- a/arch/sparc/kernel/winfixup.S +++ b/arch/sparc/kernel/winfixup.S @@ -43,6 +43,8 @@ spill_fixup_mna: spill_fixup_dax: TRAP_LOAD_THREAD_REG(%g6, %g1) ldx [%g6 + TI_FLAGS], %g1 + andcc %sp, 0x1, %g0 + movne %icc, 0, %g1 andcc %g1, _TIF_32BIT, %g0 ldub [%g6 + TI_WSAVED], %g1 sll %g1, 3, %g3 |