From a23fe55e132cd85108ab55b3fafb4b5060d847c7 Mon Sep 17 00:00:00 2001 From: Jan Engelhardt Date: Tue, 22 Jan 2008 20:42:07 +0100 Subject: [IA64] constify function pointer tables Signed-off-by: Jan Engelhardt Signed-off-by: Tony Luck --- arch/ia64/hp/common/sba_iommu.c | 2 +- arch/ia64/kernel/perfmon.c | 2 +- arch/ia64/kernel/setup.c | 2 +- arch/ia64/sn/kernel/sn2/sn2_smp.c | 2 +- arch/ia64/sn/kernel/sn2/sn_hwperf.c | 2 +- 5 files changed, 5 insertions(+), 5 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c index 45bf04eb7d7..8c0ae4f20f7 100644 --- a/arch/ia64/hp/common/sba_iommu.c +++ b/arch/ia64/hp/common/sba_iommu.c @@ -1871,7 +1871,7 @@ ioc_show(struct seq_file *s, void *v) return 0; } -static struct seq_operations ioc_seq_ops = { +static const struct seq_operations ioc_seq_ops = { .start = ioc_start, .next = ioc_next, .stop = ioc_stop, diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index 5ae177f557d..48e560922be 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -5795,7 +5795,7 @@ pfm_proc_show(struct seq_file *m, void *v) return 0; } -struct seq_operations pfm_seq_ops = { +const struct seq_operations pfm_seq_ops = { .start = pfm_proc_start, .next = pfm_proc_next, .stop = pfm_proc_stop, diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index 86028c69861..ebd1a09f320 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -654,7 +654,7 @@ c_stop (struct seq_file *m, void *v) { } -struct seq_operations cpuinfo_op = { +const struct seq_operations cpuinfo_op = { .start = c_start, .next = c_next, .stop = c_stop, diff --git a/arch/ia64/sn/kernel/sn2/sn2_smp.c b/arch/ia64/sn/kernel/sn2/sn2_smp.c index f3c69329e14..dfc6bf1c7b4 100644 --- a/arch/ia64/sn/kernel/sn2/sn2_smp.c +++ b/arch/ia64/sn/kernel/sn2/sn2_smp.c @@ -523,7 +523,7 @@ static ssize_t sn2_ptc_proc_write(struct file *file, const char __user *user, si return count; } -static struct seq_operations sn2_ptc_seq_ops = { +static const struct seq_operations sn2_ptc_seq_ops = { .start = sn2_ptc_seq_start, .next = sn2_ptc_seq_next, .stop = sn2_ptc_seq_stop, diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c index 1a8e49607f1..ca882744d75 100644 --- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c +++ b/arch/ia64/sn/kernel/sn2/sn_hwperf.c @@ -577,7 +577,7 @@ static void sn_topology_stop(struct seq_file *m, void *v) /* * /proc/sgi_sn/sn_topology, read-only using seq_file */ -static struct seq_operations sn_topology_seq_ops = { +static const struct seq_operations sn_topology_seq_ops = { .start = sn_topology_start, .next = sn_topology_next, .stop = sn_topology_stop, -- cgit v1.2.3-18-g5258 From 97075c4b3b7fdd6a083eea075c3a4a601f0d64d8 Mon Sep 17 00:00:00 2001 From: Masami Hiramatsu Date: Fri, 18 Jan 2008 11:20:46 -0500 Subject: [IA64] Fix the order of atomic operations in restore_previous_kprobes on ia64 Fix the order of atomic operations to prevent overwriting prev_kprobe[0]. To pop values from stack, we must decrement stack index right AFTER reading values. Signed-off-by: Masami Hiramatsu Signed-off-by: Tony Luck --- arch/ia64/kernel/kprobes.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/kprobes.c b/arch/ia64/kernel/kprobes.c index fc4d2676264..b618487cdc8 100644 --- a/arch/ia64/kernel/kprobes.c +++ b/arch/ia64/kernel/kprobes.c @@ -381,9 +381,10 @@ static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb) static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb) { unsigned int i; - i = atomic_sub_return(1, &kcb->prev_kprobe_index); - __get_cpu_var(current_kprobe) = kcb->prev_kprobe[i].kp; - kcb->kprobe_status = kcb->prev_kprobe[i].status; + i = atomic_read(&kcb->prev_kprobe_index); + __get_cpu_var(current_kprobe) = kcb->prev_kprobe[i-1].kp; + kcb->kprobe_status = kcb->prev_kprobe[i-1].status; + atomic_sub(1, &kcb->prev_kprobe_index); } static void __kprobes set_current_kprobe(struct kprobe *p, -- cgit v1.2.3-18-g5258 From 7d9aed26ed11d7a472104b7078b0c5e4fd416059 Mon Sep 17 00:00:00 2001 From: Aron Griffis Date: Mon, 4 Feb 2008 15:31:49 -0800 Subject: [IA64] Make efi.c mostly fit in 80 columns This patch is purely whitespace changes to make the code fit in 80 columns, plus fix some inconsistent indentation. The efi_guidcmp() tests remain wider than 80-columns since that seems to be the most clear. Signed-off-by: Aron Griffis Signed-off-by: Tony Luck --- arch/ia64/kernel/efi.c | 489 +++++++++++++++++++++++++++---------------------- 1 file changed, 266 insertions(+), 223 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c index 242d7934112..9e5910920da 100644 --- a/arch/ia64/kernel/efi.c +++ b/arch/ia64/kernel/efi.c @@ -1,7 +1,8 @@ /* * Extensible Firmware Interface * - * Based on Extensible Firmware Interface Specification version 0.9 April 30, 1999 + * Based on Extensible Firmware Interface Specification version 0.9 + * April 30, 1999 * * Copyright (C) 1999 VA Linux Systems * Copyright (C) 1999 Walt Drummond @@ -48,145 +49,157 @@ static unsigned long mem_limit = ~0UL, max_addr = ~0UL, min_addr = 0UL; #define efi_call_virt(f, args...) (*(f))(args) -#define STUB_GET_TIME(prefix, adjust_arg) \ -static efi_status_t \ -prefix##_get_time (efi_time_t *tm, efi_time_cap_t *tc) \ -{ \ - struct ia64_fpreg fr[6]; \ - efi_time_cap_t *atc = NULL; \ - efi_status_t ret; \ - \ - if (tc) \ - atc = adjust_arg(tc); \ - ia64_save_scratch_fpregs(fr); \ - ret = efi_call_##prefix((efi_get_time_t *) __va(runtime->get_time), adjust_arg(tm), atc); \ - ia64_load_scratch_fpregs(fr); \ - return ret; \ +#define STUB_GET_TIME(prefix, adjust_arg) \ +static efi_status_t \ +prefix##_get_time (efi_time_t *tm, efi_time_cap_t *tc) \ +{ \ + struct ia64_fpreg fr[6]; \ + efi_time_cap_t *atc = NULL; \ + efi_status_t ret; \ + \ + if (tc) \ + atc = adjust_arg(tc); \ + ia64_save_scratch_fpregs(fr); \ + ret = efi_call_##prefix((efi_get_time_t *) __va(runtime->get_time), \ + adjust_arg(tm), atc); \ + ia64_load_scratch_fpregs(fr); \ + return ret; \ } -#define STUB_SET_TIME(prefix, adjust_arg) \ -static efi_status_t \ -prefix##_set_time (efi_time_t *tm) \ -{ \ - struct ia64_fpreg fr[6]; \ - efi_status_t ret; \ - \ - ia64_save_scratch_fpregs(fr); \ - ret = efi_call_##prefix((efi_set_time_t *) __va(runtime->set_time), adjust_arg(tm)); \ - ia64_load_scratch_fpregs(fr); \ - return ret; \ +#define STUB_SET_TIME(prefix, adjust_arg) \ +static efi_status_t \ +prefix##_set_time (efi_time_t *tm) \ +{ \ + struct ia64_fpreg fr[6]; \ + efi_status_t ret; \ + \ + ia64_save_scratch_fpregs(fr); \ + ret = efi_call_##prefix((efi_set_time_t *) __va(runtime->set_time), \ + adjust_arg(tm)); \ + ia64_load_scratch_fpregs(fr); \ + return ret; \ } -#define STUB_GET_WAKEUP_TIME(prefix, adjust_arg) \ -static efi_status_t \ -prefix##_get_wakeup_time (efi_bool_t *enabled, efi_bool_t *pending, efi_time_t *tm) \ -{ \ - struct ia64_fpreg fr[6]; \ - efi_status_t ret; \ - \ - ia64_save_scratch_fpregs(fr); \ - ret = efi_call_##prefix((efi_get_wakeup_time_t *) __va(runtime->get_wakeup_time), \ - adjust_arg(enabled), adjust_arg(pending), adjust_arg(tm)); \ - ia64_load_scratch_fpregs(fr); \ - return ret; \ +#define STUB_GET_WAKEUP_TIME(prefix, adjust_arg) \ +static efi_status_t \ +prefix##_get_wakeup_time (efi_bool_t *enabled, efi_bool_t *pending, \ + efi_time_t *tm) \ +{ \ + struct ia64_fpreg fr[6]; \ + efi_status_t ret; \ + \ + ia64_save_scratch_fpregs(fr); \ + ret = efi_call_##prefix( \ + (efi_get_wakeup_time_t *) __va(runtime->get_wakeup_time), \ + adjust_arg(enabled), adjust_arg(pending), adjust_arg(tm)); \ + ia64_load_scratch_fpregs(fr); \ + return ret; \ } -#define STUB_SET_WAKEUP_TIME(prefix, adjust_arg) \ -static efi_status_t \ -prefix##_set_wakeup_time (efi_bool_t enabled, efi_time_t *tm) \ -{ \ - struct ia64_fpreg fr[6]; \ - efi_time_t *atm = NULL; \ - efi_status_t ret; \ - \ - if (tm) \ - atm = adjust_arg(tm); \ - ia64_save_scratch_fpregs(fr); \ - ret = efi_call_##prefix((efi_set_wakeup_time_t *) __va(runtime->set_wakeup_time), \ - enabled, atm); \ - ia64_load_scratch_fpregs(fr); \ - return ret; \ +#define STUB_SET_WAKEUP_TIME(prefix, adjust_arg) \ +static efi_status_t \ +prefix##_set_wakeup_time (efi_bool_t enabled, efi_time_t *tm) \ +{ \ + struct ia64_fpreg fr[6]; \ + efi_time_t *atm = NULL; \ + efi_status_t ret; \ + \ + if (tm) \ + atm = adjust_arg(tm); \ + ia64_save_scratch_fpregs(fr); \ + ret = efi_call_##prefix( \ + (efi_set_wakeup_time_t *) __va(runtime->set_wakeup_time), \ + enabled, atm); \ + ia64_load_scratch_fpregs(fr); \ + return ret; \ } -#define STUB_GET_VARIABLE(prefix, adjust_arg) \ -static efi_status_t \ -prefix##_get_variable (efi_char16_t *name, efi_guid_t *vendor, u32 *attr, \ - unsigned long *data_size, void *data) \ -{ \ - struct ia64_fpreg fr[6]; \ - u32 *aattr = NULL; \ - efi_status_t ret; \ - \ - if (attr) \ - aattr = adjust_arg(attr); \ - ia64_save_scratch_fpregs(fr); \ - ret = efi_call_##prefix((efi_get_variable_t *) __va(runtime->get_variable), \ - adjust_arg(name), adjust_arg(vendor), aattr, \ - adjust_arg(data_size), adjust_arg(data)); \ - ia64_load_scratch_fpregs(fr); \ - return ret; \ +#define STUB_GET_VARIABLE(prefix, adjust_arg) \ +static efi_status_t \ +prefix##_get_variable (efi_char16_t *name, efi_guid_t *vendor, u32 *attr, \ + unsigned long *data_size, void *data) \ +{ \ + struct ia64_fpreg fr[6]; \ + u32 *aattr = NULL; \ + efi_status_t ret; \ + \ + if (attr) \ + aattr = adjust_arg(attr); \ + ia64_save_scratch_fpregs(fr); \ + ret = efi_call_##prefix( \ + (efi_get_variable_t *) __va(runtime->get_variable), \ + adjust_arg(name), adjust_arg(vendor), aattr, \ + adjust_arg(data_size), adjust_arg(data)); \ + ia64_load_scratch_fpregs(fr); \ + return ret; \ } -#define STUB_GET_NEXT_VARIABLE(prefix, adjust_arg) \ -static efi_status_t \ -prefix##_get_next_variable (unsigned long *name_size, efi_char16_t *name, efi_guid_t *vendor) \ -{ \ - struct ia64_fpreg fr[6]; \ - efi_status_t ret; \ - \ - ia64_save_scratch_fpregs(fr); \ - ret = efi_call_##prefix((efi_get_next_variable_t *) __va(runtime->get_next_variable), \ - adjust_arg(name_size), adjust_arg(name), adjust_arg(vendor)); \ - ia64_load_scratch_fpregs(fr); \ - return ret; \ +#define STUB_GET_NEXT_VARIABLE(prefix, adjust_arg) \ +static efi_status_t \ +prefix##_get_next_variable (unsigned long *name_size, efi_char16_t *name, \ + efi_guid_t *vendor) \ +{ \ + struct ia64_fpreg fr[6]; \ + efi_status_t ret; \ + \ + ia64_save_scratch_fpregs(fr); \ + ret = efi_call_##prefix( \ + (efi_get_next_variable_t *) __va(runtime->get_next_variable), \ + adjust_arg(name_size), adjust_arg(name), adjust_arg(vendor)); \ + ia64_load_scratch_fpregs(fr); \ + return ret; \ } -#define STUB_SET_VARIABLE(prefix, adjust_arg) \ -static efi_status_t \ -prefix##_set_variable (efi_char16_t *name, efi_guid_t *vendor, unsigned long attr, \ - unsigned long data_size, void *data) \ -{ \ - struct ia64_fpreg fr[6]; \ - efi_status_t ret; \ - \ - ia64_save_scratch_fpregs(fr); \ - ret = efi_call_##prefix((efi_set_variable_t *) __va(runtime->set_variable), \ - adjust_arg(name), adjust_arg(vendor), attr, data_size, \ - adjust_arg(data)); \ - ia64_load_scratch_fpregs(fr); \ - return ret; \ +#define STUB_SET_VARIABLE(prefix, adjust_arg) \ +static efi_status_t \ +prefix##_set_variable (efi_char16_t *name, efi_guid_t *vendor, \ + unsigned long attr, unsigned long data_size, \ + void *data) \ +{ \ + struct ia64_fpreg fr[6]; \ + efi_status_t ret; \ + \ + ia64_save_scratch_fpregs(fr); \ + ret = efi_call_##prefix( \ + (efi_set_variable_t *) __va(runtime->set_variable), \ + adjust_arg(name), adjust_arg(vendor), attr, data_size, \ + adjust_arg(data)); \ + ia64_load_scratch_fpregs(fr); \ + return ret; \ } -#define STUB_GET_NEXT_HIGH_MONO_COUNT(prefix, adjust_arg) \ -static efi_status_t \ -prefix##_get_next_high_mono_count (u32 *count) \ -{ \ - struct ia64_fpreg fr[6]; \ - efi_status_t ret; \ - \ - ia64_save_scratch_fpregs(fr); \ - ret = efi_call_##prefix((efi_get_next_high_mono_count_t *) \ - __va(runtime->get_next_high_mono_count), adjust_arg(count)); \ - ia64_load_scratch_fpregs(fr); \ - return ret; \ +#define STUB_GET_NEXT_HIGH_MONO_COUNT(prefix, adjust_arg) \ +static efi_status_t \ +prefix##_get_next_high_mono_count (u32 *count) \ +{ \ + struct ia64_fpreg fr[6]; \ + efi_status_t ret; \ + \ + ia64_save_scratch_fpregs(fr); \ + ret = efi_call_##prefix((efi_get_next_high_mono_count_t *) \ + __va(runtime->get_next_high_mono_count), \ + adjust_arg(count)); \ + ia64_load_scratch_fpregs(fr); \ + return ret; \ } -#define STUB_RESET_SYSTEM(prefix, adjust_arg) \ -static void \ -prefix##_reset_system (int reset_type, efi_status_t status, \ - unsigned long data_size, efi_char16_t *data) \ -{ \ - struct ia64_fpreg fr[6]; \ - efi_char16_t *adata = NULL; \ - \ - if (data) \ - adata = adjust_arg(data); \ - \ - ia64_save_scratch_fpregs(fr); \ - efi_call_##prefix((efi_reset_system_t *) __va(runtime->reset_system), \ - reset_type, status, data_size, adata); \ - /* should not return, but just in case... */ \ - ia64_load_scratch_fpregs(fr); \ +#define STUB_RESET_SYSTEM(prefix, adjust_arg) \ +static void \ +prefix##_reset_system (int reset_type, efi_status_t status, \ + unsigned long data_size, efi_char16_t *data) \ +{ \ + struct ia64_fpreg fr[6]; \ + efi_char16_t *adata = NULL; \ + \ + if (data) \ + adata = adjust_arg(data); \ + \ + ia64_save_scratch_fpregs(fr); \ + efi_call_##prefix( \ + (efi_reset_system_t *) __va(runtime->reset_system), \ + reset_type, status, data_size, adata); \ + /* should not return, but just in case... */ \ + ia64_load_scratch_fpregs(fr); \ } #define phys_ptr(arg) ((__typeof__(arg)) ia64_tpa(arg)) @@ -223,7 +236,8 @@ efi_gettimeofday (struct timespec *ts) return; } - ts->tv_sec = mktime(tm.year, tm.month, tm.day, tm.hour, tm.minute, tm.second); + ts->tv_sec = mktime(tm.year, tm.month, tm.day, + tm.hour, tm.minute, tm.second); ts->tv_nsec = tm.nanosecond; } @@ -297,8 +311,8 @@ walk (efi_freemem_callback_t callback, void *arg, u64 attr) } /* - * Walks the EFI memory map and calls CALLBACK once for each EFI memory descriptor that - * has memory that is available for OS use. + * Walks the EFI memory map and calls CALLBACK once for each EFI memory + * descriptor that has memory that is available for OS use. */ void efi_memmap_walk (efi_freemem_callback_t callback, void *arg) @@ -307,8 +321,8 @@ efi_memmap_walk (efi_freemem_callback_t callback, void *arg) } /* - * Walks the EFI memory map and calls CALLBACK once for each EFI memory descriptor that - * has memory that is available for uncached allocator. + * Walks the EFI memory map and calls CALLBACK once for each EFI memory + * descriptor that has memory that is available for uncached allocator. */ void efi_memmap_walk_uc (efi_freemem_callback_t callback, void *arg) @@ -321,7 +335,6 @@ efi_memmap_walk_uc (efi_freemem_callback_t callback, void *arg) * ITR to enable safe PAL calls in virtual mode. See IA-64 Processor * Abstraction Layer chapter 11 in ADAG */ - void * efi_get_pal_addr (void) { @@ -341,32 +354,33 @@ efi_get_pal_addr (void) continue; if (++pal_code_count > 1) { - printk(KERN_ERR "Too many EFI Pal Code memory ranges, dropped @ %lx\n", - md->phys_addr); + printk(KERN_ERR "Too many EFI Pal Code memory ranges, " + "dropped @ %lx\n", md->phys_addr); continue; } /* - * The only ITLB entry in region 7 that is used is the one installed by - * __start(). That entry covers a 64MB range. + * The only ITLB entry in region 7 that is used is the one + * installed by __start(). That entry covers a 64MB range. */ mask = ~((1 << KERNEL_TR_PAGE_SHIFT) - 1); vaddr = PAGE_OFFSET + md->phys_addr; /* - * We must check that the PAL mapping won't overlap with the kernel - * mapping. + * We must check that the PAL mapping won't overlap with the + * kernel mapping. * - * PAL code is guaranteed to be aligned on a power of 2 between 4k and - * 256KB and that only one ITR is needed to map it. This implies that the - * PAL code is always aligned on its size, i.e., the closest matching page - * size supported by the TLB. Therefore PAL code is guaranteed never to - * cross a 64MB unless it is bigger than 64MB (very unlikely!). So for - * now the following test is enough to determine whether or not we need a - * dedicated ITR for the PAL code. + * PAL code is guaranteed to be aligned on a power of 2 between + * 4k and 256KB and that only one ITR is needed to map it. This + * implies that the PAL code is always aligned on its size, + * i.e., the closest matching page size supported by the TLB. + * Therefore PAL code is guaranteed never to cross a 64MB unless + * it is bigger than 64MB (very unlikely!). So for now the + * following test is enough to determine whether or not we need + * a dedicated ITR for the PAL code. */ if ((vaddr & mask) == (KERNEL_START & mask)) { - printk(KERN_INFO "%s: no need to install ITR for PAL code\n", - __FUNCTION__); + printk(KERN_INFO "%s: no need to install ITR for " + "PAL code\n", __FUNCTION__); continue; } @@ -376,10 +390,11 @@ efi_get_pal_addr (void) #if EFI_DEBUG mask = ~((1 << IA64_GRANULE_SHIFT) - 1); - printk(KERN_INFO "CPU %d: mapping PAL code [0x%lx-0x%lx) into [0x%lx-0x%lx)\n", - smp_processor_id(), md->phys_addr, - md->phys_addr + efi_md_size(md), - vaddr & mask, (vaddr & mask) + IA64_GRANULE_SIZE); + printk(KERN_INFO "CPU %d: mapping PAL code " + "[0x%lx-0x%lx) into [0x%lx-0x%lx)\n", + smp_processor_id(), md->phys_addr, + md->phys_addr + efi_md_size(md), + vaddr & mask, (vaddr & mask) + IA64_GRANULE_SIZE); #endif return __va(md->phys_addr); } @@ -401,7 +416,8 @@ efi_map_pal_code (void) * Cannot write to CRx with PSR.ic=1 */ psr = ia64_clear_ic(); - ia64_itr(0x1, IA64_TR_PALCODE, GRANULEROUNDDOWN((unsigned long) pal_vaddr), + ia64_itr(0x1, IA64_TR_PALCODE, + GRANULEROUNDDOWN((unsigned long) pal_vaddr), pte_val(pfn_pte(__pa(pal_vaddr) >> PAGE_SHIFT, PAGE_KERNEL)), IA64_GRANULE_SHIFT); ia64_set_psr(psr); /* restore psr */ @@ -418,7 +434,10 @@ efi_init (void) char *cp, vendor[100] = "unknown"; int i; - /* it's too early to be able to use the standard kernel command line support... */ + /* + * it's too early to be able to use the standard kernel command line + * support... + */ for (cp = boot_command_line; *cp; ) { if (memcmp(cp, "mem=", 4) == 0) { mem_limit = memparse(cp + 4, &cp); @@ -434,9 +453,11 @@ efi_init (void) } } if (min_addr != 0UL) - printk(KERN_INFO "Ignoring memory below %luMB\n", min_addr >> 20); + printk(KERN_INFO "Ignoring memory below %luMB\n", + min_addr >> 20); if (max_addr != ~0UL) - printk(KERN_INFO "Ignoring memory above %luMB\n", max_addr >> 20); + printk(KERN_INFO "Ignoring memory above %luMB\n", + max_addr >> 20); efi.systab = __va(ia64_boot_param->efi_systab); @@ -464,7 +485,8 @@ efi_init (void) } printk(KERN_INFO "EFI v%u.%.02u by %s:", - efi.systab->hdr.revision >> 16, efi.systab->hdr.revision & 0xffff, vendor); + efi.systab->hdr.revision >> 16, + efi.systab->hdr.revision & 0xffff, vendor); efi.mps = EFI_INVALID_TABLE_ADDR; efi.acpi = EFI_INVALID_TABLE_ADDR; @@ -519,9 +541,12 @@ efi_init (void) efi_memory_desc_t *md; void *p; - for (i = 0, p = efi_map_start; p < efi_map_end; ++i, p += efi_desc_size) { + for (i = 0, p = efi_map_start; p < efi_map_end; + ++i, p += efi_desc_size) + { md = p; - printk("mem%02u: type=%u, attr=0x%lx, range=[0x%016lx-0x%016lx) (%luMB)\n", + printk("mem%02u: type=%u, attr=0x%lx, " + "range=[0x%016lx-0x%016lx) (%luMB)\n", i, md->type, md->attribute, md->phys_addr, md->phys_addr + efi_md_size(md), md->num_pages >> (20 - EFI_PAGE_SHIFT)); @@ -549,8 +574,8 @@ efi_enter_virtual_mode (void) md = p; if (md->attribute & EFI_MEMORY_RUNTIME) { /* - * Some descriptors have multiple bits set, so the order of - * the tests is relevant. + * Some descriptors have multiple bits set, so the + * order of the tests is relevant. */ if (md->attribute & EFI_MEMORY_WB) { md->virt_addr = (u64) __va(md->phys_addr); @@ -558,21 +583,26 @@ efi_enter_virtual_mode (void) md->virt_addr = (u64) ioremap(md->phys_addr, 0); } else if (md->attribute & EFI_MEMORY_WC) { #if 0 - md->virt_addr = ia64_remap(md->phys_addr, (_PAGE_A | _PAGE_P - | _PAGE_D - | _PAGE_MA_WC - | _PAGE_PL_0 - | _PAGE_AR_RW)); + md->virt_addr = ia64_remap(md->phys_addr, + (_PAGE_A | + _PAGE_P | + _PAGE_D | + _PAGE_MA_WC | + _PAGE_PL_0 | + _PAGE_AR_RW)); #else printk(KERN_INFO "EFI_MEMORY_WC mapping\n"); md->virt_addr = (u64) ioremap(md->phys_addr, 0); #endif } else if (md->attribute & EFI_MEMORY_WT) { #if 0 - md->virt_addr = ia64_remap(md->phys_addr, (_PAGE_A | _PAGE_P - | _PAGE_D | _PAGE_MA_WT - | _PAGE_PL_0 - | _PAGE_AR_RW)); + md->virt_addr = ia64_remap(md->phys_addr, + (_PAGE_A | + _PAGE_P | + _PAGE_D | + _PAGE_MA_WT | + _PAGE_PL_0 | + _PAGE_AR_RW)); #else printk(KERN_INFO "EFI_MEMORY_WT mapping\n"); md->virt_addr = (u64) ioremap(md->phys_addr, 0); @@ -583,16 +613,18 @@ efi_enter_virtual_mode (void) status = efi_call_phys(__va(runtime->set_virtual_address_map), ia64_boot_param->efi_memmap_size, - efi_desc_size, ia64_boot_param->efi_memdesc_version, + efi_desc_size, + ia64_boot_param->efi_memdesc_version, ia64_boot_param->efi_memmap); if (status != EFI_SUCCESS) { - printk(KERN_WARNING "warning: unable to switch EFI into virtual mode " - "(status=%lu)\n", status); + printk(KERN_WARNING "warning: unable to switch EFI into " + "virtual mode (status=%lu)\n", status); return; } /* - * Now that EFI is in virtual mode, we call the EFI functions more efficiently: + * Now that EFI is in virtual mode, we call the EFI functions more + * efficiently: */ efi.get_time = virt_get_time; efi.set_time = virt_set_time; @@ -606,8 +638,8 @@ efi_enter_virtual_mode (void) } /* - * Walk the EFI memory map looking for the I/O port range. There can only be one entry of - * this type, other I/O port ranges should be described via ACPI. + * Walk the EFI memory map looking for the I/O port range. There can only be + * one entry of this type, other I/O port ranges should be described via ACPI. */ u64 efi_get_iobase (void) @@ -678,7 +710,6 @@ efi_memmap_intersects (unsigned long phys_addr, unsigned long size) for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) { md = p; - if (md->phys_addr < end && efi_md_end(md) > phys_addr) return 1; } @@ -883,7 +914,7 @@ efi_uart_console_only(void) return 1; uart = 0; } - hdr = (struct efi_generic_dev_path *) ((u8 *) hdr + hdr->length); + hdr = (struct efi_generic_dev_path *)((u8 *) hdr + hdr->length); } printk(KERN_ERR "Malformed %s value\n", name); return 0; @@ -921,10 +952,12 @@ find_memmap_space (void) if (!efi_wb(md)) { continue; } - if (pmd == NULL || !efi_wb(pmd) || efi_md_end(pmd) != md->phys_addr) { + if (pmd == NULL || !efi_wb(pmd) || + efi_md_end(pmd) != md->phys_addr) { contig_low = GRANULEROUNDUP(md->phys_addr); contig_high = efi_md_end(md); - for (q = p + efi_desc_size; q < efi_map_end; q += efi_desc_size) { + for (q = p + efi_desc_size; q < efi_map_end; + q += efi_desc_size) { check_md = q; if (!efi_wb(check_md)) break; @@ -988,8 +1021,9 @@ efi_memmap_init(unsigned long *s, unsigned long *e) for (p = efi_map_start; p < efi_map_end; pmd = md, p += efi_desc_size) { md = p; if (!efi_wb(md)) { - if (efi_uc(md) && (md->type == EFI_CONVENTIONAL_MEMORY || - md->type == EFI_BOOT_SERVICES_DATA)) { + if (efi_uc(md) && + (md->type == EFI_CONVENTIONAL_MEMORY || + md->type == EFI_BOOT_SERVICES_DATA)) { k->attribute = EFI_MEMORY_UC; k->start = md->phys_addr; k->num_pages = md->num_pages; @@ -997,10 +1031,12 @@ efi_memmap_init(unsigned long *s, unsigned long *e) } continue; } - if (pmd == NULL || !efi_wb(pmd) || efi_md_end(pmd) != md->phys_addr) { + if (pmd == NULL || !efi_wb(pmd) || + efi_md_end(pmd) != md->phys_addr) { contig_low = GRANULEROUNDUP(md->phys_addr); contig_high = efi_md_end(md); - for (q = p + efi_desc_size; q < efi_map_end; q += efi_desc_size) { + for (q = p + efi_desc_size; q < efi_map_end; + q += efi_desc_size) { check_md = q; if (!efi_wb(check_md)) break; @@ -1025,13 +1061,17 @@ efi_memmap_init(unsigned long *s, unsigned long *e) if (md->phys_addr < contig_low) { lim = min(efi_md_end(md), contig_low); if (efi_uc(md)) { - if (k > kern_memmap && (k-1)->attribute == EFI_MEMORY_UC && + if (k > kern_memmap && + (k-1)->attribute == EFI_MEMORY_UC && kmd_end(k-1) == md->phys_addr) { - (k-1)->num_pages += (lim - md->phys_addr) >> EFI_PAGE_SHIFT; + (k-1)->num_pages += + (lim - md->phys_addr) + >> EFI_PAGE_SHIFT; } else { k->attribute = EFI_MEMORY_UC; k->start = md->phys_addr; - k->num_pages = (lim - md->phys_addr) >> EFI_PAGE_SHIFT; + k->num_pages = (lim - md->phys_addr) + >> EFI_PAGE_SHIFT; k++; } } @@ -1049,7 +1089,8 @@ efi_memmap_init(unsigned long *s, unsigned long *e) } else { k->attribute = EFI_MEMORY_UC; k->start = lim; - k->num_pages = (efi_md_end(md) - lim) >> EFI_PAGE_SHIFT; + k->num_pages = (efi_md_end(md) - lim) + >> EFI_PAGE_SHIFT; k++; } } @@ -1151,8 +1192,10 @@ efi_initialize_iomem_resources(struct resource *code_resource, break; } - if ((res = kzalloc(sizeof(struct resource), GFP_KERNEL)) == NULL) { - printk(KERN_ERR "failed to alocate resource for iomem\n"); + if ((res = kzalloc(sizeof(struct resource), + GFP_KERNEL)) == NULL) { + printk(KERN_ERR + "failed to alocate resource for iomem\n"); return; } @@ -1187,44 +1230,44 @@ efi_initialize_iomem_resources(struct resource *code_resource, rsvd_regions are sorted */ unsigned long __init -kdump_find_rsvd_region (unsigned long size, - struct rsvd_region *r, int n) +kdump_find_rsvd_region (unsigned long size, struct rsvd_region *r, int n) { - int i; - u64 start, end; - u64 alignment = 1UL << _PAGE_SIZE_64M; - void *efi_map_start, *efi_map_end, *p; - efi_memory_desc_t *md; - u64 efi_desc_size; - - efi_map_start = __va(ia64_boot_param->efi_memmap); - efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size; - efi_desc_size = ia64_boot_param->efi_memdesc_size; - - for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) { - md = p; - if (!efi_wb(md)) - continue; - start = ALIGN(md->phys_addr, alignment); - end = efi_md_end(md); - for (i = 0; i < n; i++) { - if (__pa(r[i].start) >= start && __pa(r[i].end) < end) { - if (__pa(r[i].start) > start + size) - return start; - start = ALIGN(__pa(r[i].end), alignment); - if (i < n-1 && __pa(r[i+1].start) < start + size) - continue; - else - break; + int i; + u64 start, end; + u64 alignment = 1UL << _PAGE_SIZE_64M; + void *efi_map_start, *efi_map_end, *p; + efi_memory_desc_t *md; + u64 efi_desc_size; + + efi_map_start = __va(ia64_boot_param->efi_memmap); + efi_map_end = efi_map_start + ia64_boot_param->efi_memmap_size; + efi_desc_size = ia64_boot_param->efi_memdesc_size; + + for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) { + md = p; + if (!efi_wb(md)) + continue; + start = ALIGN(md->phys_addr, alignment); + end = efi_md_end(md); + for (i = 0; i < n; i++) { + if (__pa(r[i].start) >= start && __pa(r[i].end) < end) { + if (__pa(r[i].start) > start + size) + return start; + start = ALIGN(__pa(r[i].end), alignment); + if (i < n-1 && + __pa(r[i+1].start) < start + size) + continue; + else + break; + } } - } - if (end > start + size) - return start; - } - - printk(KERN_WARNING "Cannot reserve 0x%lx byte of memory for crashdump\n", - size); - return ~0UL; + if (end > start + size) + return start; + } + + printk(KERN_WARNING + "Cannot reserve 0x%lx byte of memory for crashdump\n", size); + return ~0UL; } #endif -- cgit v1.2.3-18-g5258 From 965e7c8affeca27f7e5de75c97954e74d3b8052d Mon Sep 17 00:00:00 2001 From: Aron Griffis Date: Tue, 8 Jan 2008 22:29:37 -0500 Subject: [IA64] efi.c Spelling/punctuation fixes Incorporates the suggestions from Peter Chubb the last time I submitted this. This called for using the same verb tense in the couple of preceding comments as well. Signed-off-by: Aron Griffis Signed-off-by: Tony Luck --- arch/ia64/kernel/efi.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c index 9e5910920da..269f4f4adfe 100644 --- a/arch/ia64/kernel/efi.c +++ b/arch/ia64/kernel/efi.c @@ -311,7 +311,7 @@ walk (efi_freemem_callback_t callback, void *arg, u64 attr) } /* - * Walks the EFI memory map and calls CALLBACK once for each EFI memory + * Walk the EFI memory map and call CALLBACK once for each EFI memory * descriptor that has memory that is available for OS use. */ void @@ -321,7 +321,7 @@ efi_memmap_walk (efi_freemem_callback_t callback, void *arg) } /* - * Walks the EFI memory map and calls CALLBACK once for each EFI memory + * Walk the EFI memory map and call CALLBACK once for each EFI memory * descriptor that has memory that is available for uncached allocator. */ void @@ -331,7 +331,7 @@ efi_memmap_walk_uc (efi_freemem_callback_t callback, void *arg) } /* - * Look for the PAL_CODE region reported by EFI and maps it using an + * Look for the PAL_CODE region reported by EFI and map it using an * ITR to enable safe PAL calls in virtual mode. See IA-64 Processor * Abstraction Layer chapter 11 in ADAG */ @@ -385,7 +385,7 @@ efi_get_pal_addr (void) } if (efi_md_size(md) > IA64_GRANULE_SIZE) - panic("Woah! PAL code size bigger than a granule!"); + panic("Whoa! PAL code size bigger than a granule!"); #if EFI_DEBUG mask = ~((1 << IA64_GRANULE_SHIFT) - 1); @@ -435,7 +435,7 @@ efi_init (void) int i; /* - * it's too early to be able to use the standard kernel command line + * It's too early to be able to use the standard kernel command line * support... */ for (cp = boot_command_line; *cp; ) { @@ -465,9 +465,9 @@ efi_init (void) * Verify the EFI Table */ if (efi.systab == NULL) - panic("Woah! Can't find EFI system table.\n"); + panic("Whoa! Can't find EFI system table.\n"); if (efi.systab->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE) - panic("Woah! EFI system table signature incorrect\n"); + panic("Whoa! EFI system table signature incorrect\n"); if ((efi.systab->hdr.revision >> 16) == 0) printk(KERN_WARNING "Warning: EFI system table version " "%d.%02d, expected 1.00 or greater\n", @@ -1195,7 +1195,7 @@ efi_initialize_iomem_resources(struct resource *code_resource, if ((res = kzalloc(sizeof(struct resource), GFP_KERNEL)) == NULL) { printk(KERN_ERR - "failed to alocate resource for iomem\n"); + "failed to allocate resource for iomem\n"); return; } -- cgit v1.2.3-18-g5258 From 410ab512e5c5716287a399145df0905c1dcddb04 Mon Sep 17 00:00:00 2001 From: Aron Griffis Date: Tue, 8 Jan 2008 22:29:38 -0500 Subject: [IA64] efi.c Add /* never reached */ annotation As written, this loop could be for (;;) instead of do while (md). The tests inside the loop always result in a return so the loop never terminates normally. Signed-off-by: Aron Griffis Signed-off-by: Tony Luck --- arch/ia64/kernel/efi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c index 269f4f4adfe..d59134d7e73 100644 --- a/arch/ia64/kernel/efi.c +++ b/arch/ia64/kernel/efi.c @@ -762,7 +762,7 @@ efi_mem_attribute (unsigned long phys_addr, unsigned long size) if (!md || (md->attribute & ~EFI_MEMORY_RUNTIME) != attr) return 0; } while (md); - return 0; + return 0; /* never reached */ } u64 @@ -798,7 +798,7 @@ kern_mem_attribute (unsigned long phys_addr, unsigned long size) if (!md || md->attribute != attr) return 0; } while (md); - return 0; + return 0; /* never reached */ } EXPORT_SYMBOL(kern_mem_attribute); -- cgit v1.2.3-18-g5258 From acffc84ad9c1c8a79b8c1d6b9f4f530f37cba9ab Mon Sep 17 00:00:00 2001 From: Hidetoshi Seto Date: Wed, 30 Jan 2008 12:17:42 +0900 Subject: [IA64] generalize attribute of fsyscall_gtod_data In an ordinary way, > } __attribute__ ((aligned (L1_CACHE_BYTES))); should be > } ____cacheline_aligned; to save some bytes on an uni-processor. Signed-off-by: Hidetoshi Seto Signed-off-by: Tony Luck --- arch/ia64/kernel/fsyscall_gtod_data.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/fsyscall_gtod_data.h b/arch/ia64/kernel/fsyscall_gtod_data.h index 490dab55fba..57d2ee6c83e 100644 --- a/arch/ia64/kernel/fsyscall_gtod_data.h +++ b/arch/ia64/kernel/fsyscall_gtod_data.h @@ -14,10 +14,10 @@ struct fsyscall_gtod_data_t { u32 clk_shift; void *clk_fsys_mmio; cycle_t clk_cycle_last; -} __attribute__ ((aligned (L1_CACHE_BYTES))); +} ____cacheline_aligned; struct itc_jitter_data_t { int itc_jitter; cycle_t itc_lastcycle; -} __attribute__ ((aligned (L1_CACHE_BYTES))); +} ____cacheline_aligned; -- cgit v1.2.3-18-g5258 From 0245583ab454ba56131921e26ad966b56bcc0a5b Mon Sep 17 00:00:00 2001 From: Daniel Walker Date: Thu, 10 Jan 2008 20:31:51 -0800 Subject: [IA64] sn_hwperf semaphore to mutex Really simple mutex style semaphore user. The new API is struct mutex which is what I've converted it to with this change. Signed-off-by: Daniel Walker Signed-off-by: Tony Luck --- arch/ia64/sn/kernel/sn2/sn_hwperf.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/sn/kernel/sn2/sn_hwperf.c b/arch/ia64/sn/kernel/sn2/sn_hwperf.c index ca882744d75..4b0d1538e7e 100644 --- a/arch/ia64/sn/kernel/sn2/sn_hwperf.c +++ b/arch/ia64/sn/kernel/sn2/sn_hwperf.c @@ -33,6 +33,7 @@ #include #include #include +#include #include #include @@ -50,7 +51,7 @@ static void *sn_hwperf_salheap = NULL; static int sn_hwperf_obj_cnt = 0; static nasid_t sn_hwperf_master_nasid = INVALID_NASID; static int sn_hwperf_init(void); -static DECLARE_MUTEX(sn_hwperf_init_mutex); +static DEFINE_MUTEX(sn_hwperf_init_mutex); #define cnode_possible(n) ((n) < num_cnodes) @@ -884,10 +885,10 @@ static int sn_hwperf_init(void) int e = 0; /* single threaded, once-only initialization */ - down(&sn_hwperf_init_mutex); + mutex_lock(&sn_hwperf_init_mutex); if (sn_hwperf_salheap) { - up(&sn_hwperf_init_mutex); + mutex_unlock(&sn_hwperf_init_mutex); return e; } @@ -936,7 +937,7 @@ out: sn_hwperf_salheap = NULL; sn_hwperf_obj_cnt = 0; } - up(&sn_hwperf_init_mutex); + mutex_unlock(&sn_hwperf_init_mutex); return e; } -- cgit v1.2.3-18-g5258 From fe77efb8b7e80128b914044c175d5dcd75e9fff7 Mon Sep 17 00:00:00 2001 From: Hidetoshi Seto Date: Mon, 7 Jan 2008 10:11:57 +0900 Subject: [IA64] mca style cleanup Unified changelog, 80 columns rule, and address form fix. Signed-off-by: Hidetoshi Seto Signed-off-by: Tony Luck --- arch/ia64/kernel/mca.c | 66 +++++++++++++++++++++++------------------- arch/ia64/kernel/mca_asm.S | 46 +++++++++++++++-------------- arch/ia64/kernel/mca_drv.c | 2 +- arch/ia64/kernel/mca_drv.h | 2 +- arch/ia64/kernel/mca_drv_asm.S | 2 +- 5 files changed, 65 insertions(+), 53 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c index 6dbf5919d2d..846e7e036b1 100644 --- a/arch/ia64/kernel/mca.c +++ b/arch/ia64/kernel/mca.c @@ -2,61 +2,69 @@ * File: mca.c * Purpose: Generic MCA handling layer * - * Updated for latest kernel * Copyright (C) 2003 Hewlett-Packard Co * David Mosberger-Tang * * Copyright (C) 2002 Dell Inc. - * Copyright (C) Matt Domsch (Matt_Domsch@dell.com) + * Copyright (C) Matt Domsch * * Copyright (C) 2002 Intel - * Copyright (C) Jenna Hall (jenna.s.hall@intel.com) + * Copyright (C) Jenna Hall * * Copyright (C) 2001 Intel - * Copyright (C) Fred Lewis (frederick.v.lewis@intel.com) + * Copyright (C) Fred Lewis * * Copyright (C) 2000 Intel - * Copyright (C) Chuck Fleckenstein (cfleck@co.intel.com) + * Copyright (C) Chuck Fleckenstein * * Copyright (C) 1999, 2004 Silicon Graphics, Inc. - * Copyright (C) Vijay Chander(vijay@engr.sgi.com) + * Copyright (C) Vijay Chander * - * 03/04/15 D. Mosberger Added INIT backtrace support. - * 02/03/25 M. Domsch GUID cleanups + * Copyright (C) 2006 FUJITSU LIMITED + * Copyright (C) Hidetoshi Seto * - * 02/01/04 J. Hall Aligned MCA stack to 16 bytes, added platform vs. CPU - * error flag, set SAL default return values, changed - * error record structure to linked list, added init call - * to sal_get_state_info_size(). + * 2000-03-29 Chuck Fleckenstein + * Fixed PAL/SAL update issues, began MCA bug fixes, logging issues, + * added min save state dump, added INIT handler. * - * 01/01/03 F. Lewis Added setup of CMCI and CPEI IRQs, logging of corrected - * platform errors, completed code for logging of - * corrected & uncorrected machine check errors, and - * updated for conformance with Nov. 2000 revision of the - * SAL 3.0 spec. - * 00/03/29 C. Fleckenstein Fixed PAL/SAL update issues, began MCA bug fixes, logging issues, - * added min save state dump, added INIT handler. + * 2001-01-03 Fred Lewis + * Added setup of CMCI and CPEI IRQs, logging of corrected platform + * errors, completed code for logging of corrected & uncorrected + * machine check errors, and updated for conformance with Nov. 2000 + * revision of the SAL 3.0 spec. + * + * 2002-01-04 Jenna Hall + * Aligned MCA stack to 16 bytes, added platform vs. CPU error flag, + * set SAL default return values, changed error record structure to + * linked list, added init call to sal_get_state_info_size(). + * + * 2002-03-25 Matt Domsch + * GUID cleanups. + * + * 2003-04-15 David Mosberger-Tang + * Added INIT backtrace support. * * 2003-12-08 Keith Owens - * smp_call_function() must not be called from interrupt context (can - * deadlock on tasklist_lock). Use keventd to call smp_call_function(). + * smp_call_function() must not be called from interrupt context + * (can deadlock on tasklist_lock). + * Use keventd to call smp_call_function(). * * 2004-02-01 Keith Owens - * Avoid deadlock when using printk() for MCA and INIT records. - * Delete all record printing code, moved to salinfo_decode in user space. - * Mark variables and functions static where possible. - * Delete dead variables and functions. - * Reorder to remove the need for forward declarations and to consolidate - * related code. + * Avoid deadlock when using printk() for MCA and INIT records. + * Delete all record printing code, moved to salinfo_decode in user + * space. Mark variables and functions static where possible. + * Delete dead variables and functions. Reorder to remove the need + * for forward declarations and to consolidate related code. * * 2005-08-12 Keith Owens - * Convert MCA/INIT handlers to use per event stacks and SAL/OS state. + * Convert MCA/INIT handlers to use per event stacks and SAL/OS + * state. * * 2005-10-07 Keith Owens * Add notify_die() hooks. * * 2006-09-15 Hidetoshi Seto - * Add printing support for MCA/INIT. + * Add printing support for MCA/INIT. * * 2007-04-27 Russ Anderson * Support multiple cpus going through OS_MCA in the same event. diff --git a/arch/ia64/kernel/mca_asm.S b/arch/ia64/kernel/mca_asm.S index 0f5965fcdf8..8bc7d259e0c 100644 --- a/arch/ia64/kernel/mca_asm.S +++ b/arch/ia64/kernel/mca_asm.S @@ -1,24 +1,28 @@ -// -// assembly portion of the IA64 MCA handling -// -// Mods by cfleck to integrate into kernel build -// 00/03/15 davidm Added various stop bits to get a clean compile -// -// 00/03/29 cfleck Added code to save INIT handoff state in pt_regs format, switch to temp -// kstack, switch modes, jump to C INIT handler -// -// 02/01/04 J.Hall -// Before entering virtual mode code: -// 1. Check for TLB CPU error -// 2. Restore current thread pointer to kr6 -// 3. Move stack ptr 16 bytes to conform to C calling convention -// -// 04/11/12 Russ Anderson -// Added per cpu MCA/INIT stack save areas. -// -// 12/08/05 Keith Owens -// Use per cpu MCA/INIT stacks for all data. -// +/* + * File: mca_asm.S + * Purpose: assembly portion of the IA64 MCA handling + * + * Mods by cfleck to integrate into kernel build + * + * 2000-03-15 David Mosberger-Tang + * Added various stop bits to get a clean compile + * + * 2000-03-29 Chuck Fleckenstein + * Added code to save INIT handoff state in pt_regs format, + * switch to temp kstack, switch modes, jump to C INIT handler + * + * 2002-01-04 J.Hall + * Before entering virtual mode code: + * 1. Check for TLB CPU error + * 2. Restore current thread pointer to kr6 + * 3. Move stack ptr 16 bytes to conform to C calling convention + * + * 2004-11-12 Russ Anderson + * Added per cpu MCA/INIT stack save areas. + * + * 2005-12-08 Keith Owens + * Use per cpu MCA/INIT stacks for all data. + */ #include #include diff --git a/arch/ia64/kernel/mca_drv.c b/arch/ia64/kernel/mca_drv.c index aba813c2c15..fab1d21a4f2 100644 --- a/arch/ia64/kernel/mca_drv.c +++ b/arch/ia64/kernel/mca_drv.c @@ -3,7 +3,7 @@ * Purpose: Generic MCA handling layer * * Copyright (C) 2004 FUJITSU LIMITED - * Copyright (C) Hidetoshi Seto (seto.hidetoshi@jp.fujitsu.com) + * Copyright (C) 2004 Hidetoshi Seto * Copyright (C) 2005 Silicon Graphics, Inc * Copyright (C) 2005 Keith Owens * Copyright (C) 2006 Russ Anderson diff --git a/arch/ia64/kernel/mca_drv.h b/arch/ia64/kernel/mca_drv.h index 485e34d0b19..53b8ecb5b4b 100644 --- a/arch/ia64/kernel/mca_drv.h +++ b/arch/ia64/kernel/mca_drv.h @@ -3,7 +3,7 @@ * Purpose: Define helpers for Generic MCA handling * * Copyright (C) 2004 FUJITSU LIMITED - * Copyright (C) Hidetoshi Seto (seto.hidetoshi@jp.fujitsu.com) + * Copyright (C) 2004 Hidetoshi Seto */ /* * Processor error section: diff --git a/arch/ia64/kernel/mca_drv_asm.S b/arch/ia64/kernel/mca_drv_asm.S index 3bccb06c8d2..767ac2c20d1 100644 --- a/arch/ia64/kernel/mca_drv_asm.S +++ b/arch/ia64/kernel/mca_drv_asm.S @@ -3,7 +3,7 @@ * Purpose: Assembly portion of Generic MCA handling * * Copyright (C) 2004 FUJITSU LIMITED - * Copyright (C) Hidetoshi Seto (seto.hidetoshi@jp.fujitsu.com) + * Copyright (C) 2004 Hidetoshi Seto */ #include -- cgit v1.2.3-18-g5258 From a7d57ecf4216ed29328f8e701bd65ebb66a0284c Mon Sep 17 00:00:00 2001 From: "Zhang, Xiantao" Date: Mon, 4 Feb 2008 15:46:23 -0800 Subject: [IA64] Export three symbols for module use Since kvm/module needs to use some unexported functions in kernel, so export them with this patch. Signed-off-by: Zhang Xiantao Signed-off-by: Tony Luck --- arch/ia64/kernel/ia64_ksyms.c | 3 +++ arch/ia64/kernel/sal.c | 14 ++++++++++++++ 2 files changed, 17 insertions(+) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c index c3b4412ccc6..8e7193d5552 100644 --- a/arch/ia64/kernel/ia64_ksyms.c +++ b/arch/ia64/kernel/ia64_ksyms.c @@ -12,6 +12,9 @@ EXPORT_SYMBOL(memset); EXPORT_SYMBOL(memcpy); EXPORT_SYMBOL(strlen); +#include +EXPORT_SYMBOL_GPL(empty_zero_page); + #include EXPORT_SYMBOL(ip_fast_csum); /* hand-coded assembly */ EXPORT_SYMBOL(csum_ipv6_magic); diff --git a/arch/ia64/kernel/sal.c b/arch/ia64/kernel/sal.c index 27c2ef445a5..f44fe841216 100644 --- a/arch/ia64/kernel/sal.c +++ b/arch/ia64/kernel/sal.c @@ -284,6 +284,7 @@ ia64_sal_cache_flush (u64 cache_type) SAL_CALL(isrv, SAL_CACHE_FLUSH, cache_type, 0, 0, 0, 0, 0, 0); return isrv.status; } +EXPORT_SYMBOL_GPL(ia64_sal_cache_flush); void __init ia64_sal_init (struct ia64_sal_systab *systab) @@ -372,3 +373,16 @@ ia64_sal_oemcall_reentrant(struct ia64_sal_retval *isrvp, u64 oemfunc, return 0; } EXPORT_SYMBOL(ia64_sal_oemcall_reentrant); + +long +ia64_sal_freq_base (unsigned long which, unsigned long *ticks_per_second, + unsigned long *drift_info) +{ + struct ia64_sal_retval isrv; + + SAL_CALL(isrv, SAL_FREQ_BASE, which, 0, 0, 0, 0, 0, 0); + *ticks_per_second = isrv.v0; + *drift_info = isrv.v1; + return isrv.status; +} +EXPORT_SYMBOL_GPL(ia64_sal_freq_base); -- cgit v1.2.3-18-g5258 From f00c2d36bf6d7efece79713930763d9a0460283e Mon Sep 17 00:00:00 2001 From: Xiantao Zhang Date: Thu, 31 Jan 2008 17:46:09 +0800 Subject: [IA64] ia64_set_psr should use srlz.i The only in kernel use of ia64_set_psr() needs to follow it with a srlz.i (since it is changing state for PSR.ic). So it is pointless to issue srlz.d inside this function. Signed-off-by: Xiantao Zhang Signed-off-by: Tony Luck --- arch/ia64/kernel/efi.c | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c index d59134d7e73..919070a9aed 100644 --- a/arch/ia64/kernel/efi.c +++ b/arch/ia64/kernel/efi.c @@ -421,7 +421,6 @@ efi_map_pal_code (void) pte_val(pfn_pte(__pa(pal_vaddr) >> PAGE_SHIFT, PAGE_KERNEL)), IA64_GRANULE_SHIFT); ia64_set_psr(psr); /* restore psr */ - ia64_srlz_i(); } void __init -- cgit v1.2.3-18-g5258 From ef3c4cb936d854d1564172f2dcce9c20d1b08761 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Mon, 4 Feb 2008 23:43:02 -0800 Subject: [IA64] remove dead code: __cpu_{down,die} from !HOTPLUG_CPU Neither __cpu_down() nor __cpu_die() are being referenced without CONFIG_HOTPLUG_CPU. Signed-off-by: Jan Beulich Signed-off-by: Andrew Morton Signed-off-by: Tony Luck --- arch/ia64/kernel/smpboot.c | 11 ----------- 1 file changed, 11 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/smpboot.c b/arch/ia64/kernel/smpboot.c index f0fc4d8465a..480b1a5085d 100644 --- a/arch/ia64/kernel/smpboot.c +++ b/arch/ia64/kernel/smpboot.c @@ -767,17 +767,6 @@ void __cpu_die(unsigned int cpu) } printk(KERN_ERR "CPU %u didn't die...\n", cpu); } -#else /* !CONFIG_HOTPLUG_CPU */ -int __cpu_disable(void) -{ - return -ENOSYS; -} - -void __cpu_die(unsigned int cpu) -{ - /* We said "no" in __cpu_disable */ - BUG(); -} #endif /* CONFIG_HOTPLUG_CPU */ void -- cgit v1.2.3-18-g5258 From 620de2f5dc697f906408743b1139fe5fb7b0b7f8 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Mon, 4 Feb 2008 23:43:03 -0800 Subject: [IA64] honor notify_die() returning NOTIFY_STOP This requires making die() and die_if_kernel() return a value, and their callers to honor this (and be prepared that it returns). Signed-off-by: Jan Beulich Signed-off-by: Andrew Morton Signed-off-by: Tony Luck --- arch/ia64/ia32/ia32_support.c | 5 +++-- arch/ia64/kernel/traps.c | 35 +++++++++++++++++++++++------------ arch/ia64/kernel/unaligned.c | 13 ++++++++----- arch/ia64/mm/fault.c | 8 +++++--- 4 files changed, 39 insertions(+), 22 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/ia32/ia32_support.c b/arch/ia64/ia32/ia32_support.c index d1d50cd1c38..896b1ebbfb2 100644 --- a/arch/ia64/ia32/ia32_support.c +++ b/arch/ia64/ia32/ia32_support.c @@ -27,7 +27,7 @@ #include "ia32priv.h" -extern void die_if_kernel (char *str, struct pt_regs *regs, long err); +extern int die_if_kernel (char *str, struct pt_regs *regs, long err); struct exec_domain ia32_exec_domain; struct page *ia32_shared_page[NR_CPUS]; @@ -217,7 +217,8 @@ ia32_bad_interrupt (unsigned long int_num, struct pt_regs *regs) { siginfo_t siginfo; - die_if_kernel("Bad IA-32 interrupt", regs, int_num); + if (die_if_kernel("Bad IA-32 interrupt", regs, int_num)) + return; siginfo.si_signo = SIGTRAP; siginfo.si_errno = int_num; /* XXX is it OK to abuse si_errno like this? */ diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c index 78d65cb947d..f0cda765e68 100644 --- a/arch/ia64/kernel/traps.c +++ b/arch/ia64/kernel/traps.c @@ -35,7 +35,7 @@ trap_init (void) fpswa_interface = __va(ia64_boot_param->fpswa); } -void +int die (const char *str, struct pt_regs *regs, long err) { static struct { @@ -62,8 +62,11 @@ die (const char *str, struct pt_regs *regs, long err) if (++die.lock_owner_depth < 3) { printk("%s[%d]: %s %ld [%d]\n", current->comm, task_pid_nr(current), str, err, ++die_counter); - (void) notify_die(DIE_OOPS, (char *)str, regs, err, 255, SIGSEGV); - show_regs(regs); + if (notify_die(DIE_OOPS, str, regs, err, 255, SIGSEGV) + != NOTIFY_STOP) + show_regs(regs); + else + regs = NULL; } else printk(KERN_ERR "Recursive die() failure, output suppressed\n"); @@ -72,17 +75,22 @@ die (const char *str, struct pt_regs *regs, long err) add_taint(TAINT_DIE); spin_unlock_irq(&die.lock); + if (!regs) + return 1; + if (panic_on_oops) panic("Fatal exception"); do_exit(SIGSEGV); + return 0; } -void +int die_if_kernel (char *str, struct pt_regs *regs, long err) { if (!user_mode(regs)) - die(str, regs, err); + return die(str, regs, err); + return 0; } void @@ -102,7 +110,8 @@ __kprobes ia64_bad_break (unsigned long break_num, struct pt_regs *regs) if (notify_die(DIE_BREAK, "break 0", regs, break_num, TRAP_BRKPT, SIGTRAP) == NOTIFY_STOP) return; - die_if_kernel("bugcheck!", regs, break_num); + if (die_if_kernel("bugcheck!", regs, break_num)) + return; sig = SIGILL; code = ILL_ILLOPC; break; @@ -155,8 +164,9 @@ __kprobes ia64_bad_break (unsigned long break_num, struct pt_regs *regs) break; default: - if (break_num < 0x40000 || break_num > 0x100000) - die_if_kernel("Bad break", regs, break_num); + if ((break_num < 0x40000 || break_num > 0x100000) + && die_if_kernel("Bad break", regs, break_num)) + return; if (break_num < 0x80000) { sig = SIGILL; code = __ILL_BREAK; @@ -402,14 +412,15 @@ ia64_illegal_op_fault (unsigned long ec, long arg1, long arg2, long arg3, #endif sprintf(buf, "IA-64 Illegal operation fault"); - die_if_kernel(buf, ®s, 0); + rv.fkt = 0; + if (die_if_kernel(buf, ®s, 0)) + return rv; memset(&si, 0, sizeof(si)); si.si_signo = SIGILL; si.si_code = ILL_ILLOPC; si.si_addr = (void __user *) (regs.cr_iip + ia64_psr(®s)->ri); force_sig_info(SIGILL, &si, current); - rv.fkt = 0; return rv; } @@ -644,6 +655,6 @@ ia64_fault (unsigned long vector, unsigned long isr, unsigned long ifa, sprintf(buf, "Fault %lu", vector); break; } - die_if_kernel(buf, ®s, error); - force_sig(SIGILL, current); + if (!die_if_kernel(buf, ®s, error)) + force_sig(SIGILL, current); } diff --git a/arch/ia64/kernel/unaligned.c b/arch/ia64/kernel/unaligned.c index f6a1aeb742b..52f70bbc192 100644 --- a/arch/ia64/kernel/unaligned.c +++ b/arch/ia64/kernel/unaligned.c @@ -23,7 +23,7 @@ #include #include -extern void die_if_kernel(char *str, struct pt_regs *regs, long err); +extern int die_if_kernel(char *str, struct pt_regs *regs, long err); #undef DEBUG_UNALIGNED_TRAP @@ -675,8 +675,9 @@ emulate_load_updates (update_t type, load_store_t ld, struct pt_regs *regs, unsi */ if (ld.x6_op == 1 || ld.x6_op == 3) { printk(KERN_ERR "%s: register update on speculative load, error\n", __FUNCTION__); - die_if_kernel("unaligned reference on speculative load with register update\n", - regs, 30); + if (die_if_kernel("unaligned reference on speculative load with register update\n", + regs, 30)) + return; } @@ -1317,7 +1318,8 @@ ia64_handle_unaligned (unsigned long ifa, struct pt_regs *regs) if (ia64_psr(regs)->be) { /* we don't support big-endian accesses */ - die_if_kernel("big-endian unaligned accesses are not supported", regs, 0); + if (die_if_kernel("big-endian unaligned accesses are not supported", regs, 0)) + return; goto force_sigbus; } @@ -1534,7 +1536,8 @@ ia64_handle_unaligned (unsigned long ifa, struct pt_regs *regs) ia64_handle_exception(regs, eh); goto done; } - die_if_kernel("error during unaligned kernel access\n", regs, ret); + if (die_if_kernel("error during unaligned kernel access\n", regs, ret)) + return; /* NOT_REACHED */ } force_sigbus: diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c index 7571076a16a..3e69881648a 100644 --- a/arch/ia64/mm/fault.c +++ b/arch/ia64/mm/fault.c @@ -16,7 +16,7 @@ #include #include -extern void die (char *, struct pt_regs *, long); +extern int die(char *, struct pt_regs *, long); #ifdef CONFIG_KPROBES static inline int notify_page_fault(struct pt_regs *regs, int trap) @@ -267,9 +267,11 @@ ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *re else printk(KERN_ALERT "Unable to handle kernel paging request at " "virtual address %016lx\n", address); - die("Oops", regs, isr); + if (die("Oops", regs, isr)) + regs = NULL; bust_spinlocks(0); - do_exit(SIGKILL); + if (regs) + do_exit(SIGKILL); return; out_of_memory: -- cgit v1.2.3-18-g5258 From e1b0d4ba46b42909d11ea152a6b56ee76f062ca3 Mon Sep 17 00:00:00 2001 From: Pavel Emelyanov Date: Mon, 4 Feb 2008 23:43:03 -0800 Subject: [IA64] make pfm_get_task work with virtual pids This pid comes from user space, so treat it accordingly. Signed-off-by: Pavel Emelyanov Cc: "Eric W. Biederman" Signed-off-by: Andrew Morton Signed-off-by: Tony Luck --- arch/ia64/kernel/perfmon.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index 48e560922be..78acd9fe97e 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -2654,11 +2654,11 @@ pfm_get_task(pfm_context_t *ctx, pid_t pid, struct task_struct **task) /* XXX: need to add more checks here */ if (pid < 2) return -EPERM; - if (pid != current->pid) { + if (pid != task_pid_vnr(current)) { read_lock(&tasklist_lock); - p = find_task_by_pid(pid); + p = find_task_by_vpid(pid); /* make sure task cannot go away while we operate on it */ if (p) get_task_struct(p); -- cgit v1.2.3-18-g5258