diff options
author | Grant Likely <grant.likely@secretlab.ca> | 2011-02-04 11:46:43 -0700 |
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committer | Grant Likely <grant.likely@secretlab.ca> | 2011-02-04 11:46:43 -0700 |
commit | c64eae9a73a847c1698f913c893aa4012d2a30b0 (patch) | |
tree | 732684b9ffe9dfd6e9a11b1f006eaaefeb0e945b /arch/powerpc/kernel | |
parent | c9e358dfc4a8cb2227172ef77908c2e0ee17bcb9 (diff) | |
parent | ebf53826e105f488f4f628703a108e98940d1dc5 (diff) | |
download | op-kernel-dev-c64eae9a73a847c1698f913c893aa4012d2a30b0.zip op-kernel-dev-c64eae9a73a847c1698f913c893aa4012d2a30b0.tar.gz |
Merge commit 'v2.6.38-rc3' into devicetree/next
Diffstat (limited to 'arch/powerpc/kernel')
-rw-r--r-- | arch/powerpc/kernel/cpu_setup_fsl_booke.S | 6 | ||||
-rw-r--r-- | arch/powerpc/kernel/cputable.c | 23 | ||||
-rw-r--r-- | arch/powerpc/kernel/crash.c | 72 | ||||
-rw-r--r-- | arch/powerpc/kernel/entry_32.S | 11 | ||||
-rw-r--r-- | arch/powerpc/kernel/machine_kexec.c | 19 | ||||
-rw-r--r-- | arch/powerpc/kernel/perf_event_fsl_emb.c | 1 | ||||
-rw-r--r-- | arch/powerpc/kernel/process.c | 2 | ||||
-rw-r--r-- | arch/powerpc/kernel/rtas_flash.c | 53 | ||||
-rw-r--r-- | arch/powerpc/kernel/rtasd.c | 2 | ||||
-rw-r--r-- | arch/powerpc/kernel/time.c | 25 | ||||
-rw-r--r-- | arch/powerpc/kernel/traps.c | 12 |
11 files changed, 58 insertions, 168 deletions
diff --git a/arch/powerpc/kernel/cpu_setup_fsl_booke.S b/arch/powerpc/kernel/cpu_setup_fsl_booke.S index 894e64f..5c518ad 100644 --- a/arch/powerpc/kernel/cpu_setup_fsl_booke.S +++ b/arch/powerpc/kernel/cpu_setup_fsl_booke.S @@ -64,6 +64,12 @@ _GLOBAL(__setup_cpu_e500v2) bl __e500_icache_setup bl __e500_dcache_setup bl __setup_e500_ivors +#ifdef CONFIG_RAPIDIO + /* Ensure that RFXE is set */ + mfspr r3,SPRN_HID1 + oris r3,r3,HID1_RFXE@h + mtspr SPRN_HID1,r3 +#endif mtlr r4 blr _GLOBAL(__setup_cpu_e500mc) diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index be5ab18..8d74a24 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -116,7 +116,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .pmc_type = PPC_PMC_IBM, .oprofile_cpu_type = "ppc64/power3", .oprofile_type = PPC_OPROFILE_RS64, - .machine_check = machine_check_generic, .platform = "power3", }, { /* Power3+ */ @@ -132,7 +131,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .pmc_type = PPC_PMC_IBM, .oprofile_cpu_type = "ppc64/power3", .oprofile_type = PPC_OPROFILE_RS64, - .machine_check = machine_check_generic, .platform = "power3", }, { /* Northstar */ @@ -148,7 +146,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .pmc_type = PPC_PMC_IBM, .oprofile_cpu_type = "ppc64/rs64", .oprofile_type = PPC_OPROFILE_RS64, - .machine_check = machine_check_generic, .platform = "rs64", }, { /* Pulsar */ @@ -164,7 +161,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .pmc_type = PPC_PMC_IBM, .oprofile_cpu_type = "ppc64/rs64", .oprofile_type = PPC_OPROFILE_RS64, - .machine_check = machine_check_generic, .platform = "rs64", }, { /* I-star */ @@ -180,7 +176,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .pmc_type = PPC_PMC_IBM, .oprofile_cpu_type = "ppc64/rs64", .oprofile_type = PPC_OPROFILE_RS64, - .machine_check = machine_check_generic, .platform = "rs64", }, { /* S-star */ @@ -196,7 +191,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .pmc_type = PPC_PMC_IBM, .oprofile_cpu_type = "ppc64/rs64", .oprofile_type = PPC_OPROFILE_RS64, - .machine_check = machine_check_generic, .platform = "rs64", }, { /* Power4 */ @@ -212,7 +206,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .pmc_type = PPC_PMC_IBM, .oprofile_cpu_type = "ppc64/power4", .oprofile_type = PPC_OPROFILE_POWER4, - .machine_check = machine_check_generic, .platform = "power4", }, { /* Power4+ */ @@ -228,7 +221,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .pmc_type = PPC_PMC_IBM, .oprofile_cpu_type = "ppc64/power4", .oprofile_type = PPC_OPROFILE_POWER4, - .machine_check = machine_check_generic, .platform = "power4", }, { /* PPC970 */ @@ -247,7 +239,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .cpu_restore = __restore_cpu_ppc970, .oprofile_cpu_type = "ppc64/970", .oprofile_type = PPC_OPROFILE_POWER4, - .machine_check = machine_check_generic, .platform = "ppc970", }, { /* PPC970FX */ @@ -266,7 +257,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .cpu_restore = __restore_cpu_ppc970, .oprofile_cpu_type = "ppc64/970", .oprofile_type = PPC_OPROFILE_POWER4, - .machine_check = machine_check_generic, .platform = "ppc970", }, { /* PPC970MP DD1.0 - no DEEPNAP, use regular 970 init */ @@ -285,7 +275,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .cpu_restore = __restore_cpu_ppc970, .oprofile_cpu_type = "ppc64/970MP", .oprofile_type = PPC_OPROFILE_POWER4, - .machine_check = machine_check_generic, .platform = "ppc970", }, { /* PPC970MP */ @@ -304,7 +293,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .cpu_restore = __restore_cpu_ppc970, .oprofile_cpu_type = "ppc64/970MP", .oprofile_type = PPC_OPROFILE_POWER4, - .machine_check = machine_check_generic, .platform = "ppc970", }, { /* PPC970GX */ @@ -322,7 +310,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .cpu_setup = __setup_cpu_ppc970, .oprofile_cpu_type = "ppc64/970", .oprofile_type = PPC_OPROFILE_POWER4, - .machine_check = machine_check_generic, .platform = "ppc970", }, { /* Power5 GR */ @@ -343,7 +330,6 @@ static struct cpu_spec __initdata cpu_specs[] = { */ .oprofile_mmcra_sihv = MMCRA_SIHV, .oprofile_mmcra_sipr = MMCRA_SIPR, - .machine_check = machine_check_generic, .platform = "power5", }, { /* Power5++ */ @@ -360,7 +346,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .oprofile_type = PPC_OPROFILE_POWER4, .oprofile_mmcra_sihv = MMCRA_SIHV, .oprofile_mmcra_sipr = MMCRA_SIPR, - .machine_check = machine_check_generic, .platform = "power5+", }, { /* Power5 GS */ @@ -378,7 +363,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .oprofile_type = PPC_OPROFILE_POWER4, .oprofile_mmcra_sihv = MMCRA_SIHV, .oprofile_mmcra_sipr = MMCRA_SIPR, - .machine_check = machine_check_generic, .platform = "power5+", }, { /* POWER6 in P5+ mode; 2.04-compliant processor */ @@ -390,7 +374,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .mmu_features = MMU_FTR_HPTE_TABLE, .icache_bsize = 128, .dcache_bsize = 128, - .machine_check = machine_check_generic, .oprofile_cpu_type = "ppc64/ibm-compat-v1", .oprofile_type = PPC_OPROFILE_POWER4, .platform = "power5+", @@ -413,7 +396,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .oprofile_mmcra_sipr = POWER6_MMCRA_SIPR, .oprofile_mmcra_clear = POWER6_MMCRA_THRM | POWER6_MMCRA_OTHER, - .machine_check = machine_check_generic, .platform = "power6x", }, { /* 2.05-compliant processor, i.e. Power6 "architected" mode */ @@ -425,7 +407,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .mmu_features = MMU_FTR_HPTE_TABLE, .icache_bsize = 128, .dcache_bsize = 128, - .machine_check = machine_check_generic, .oprofile_cpu_type = "ppc64/ibm-compat-v1", .oprofile_type = PPC_OPROFILE_POWER4, .platform = "power6", @@ -440,7 +421,6 @@ static struct cpu_spec __initdata cpu_specs[] = { MMU_FTR_TLBIE_206, .icache_bsize = 128, .dcache_bsize = 128, - .machine_check = machine_check_generic, .oprofile_type = PPC_OPROFILE_POWER4, .oprofile_cpu_type = "ppc64/ibm-compat-v1", .platform = "power7", @@ -492,7 +472,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .pmc_type = PPC_PMC_IBM, .oprofile_cpu_type = "ppc64/cell-be", .oprofile_type = PPC_OPROFILE_CELL, - .machine_check = machine_check_generic, .platform = "ppc-cell-be", }, { /* PA Semi PA6T */ @@ -510,7 +489,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .cpu_restore = __restore_cpu_pa6t, .oprofile_cpu_type = "ppc64/pa6t", .oprofile_type = PPC_OPROFILE_PA6T, - .machine_check = machine_check_generic, .platform = "pa6t", }, { /* default match */ @@ -524,7 +502,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .dcache_bsize = 128, .num_pmcs = 6, .pmc_type = PPC_PMC_IBM, - .machine_check = machine_check_generic, .platform = "power4", } #endif /* CONFIG_PPC_BOOK3S_64 */ diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c index 832c8c4..3d569e2 100644 --- a/arch/powerpc/kernel/crash.c +++ b/arch/powerpc/kernel/crash.c @@ -48,7 +48,7 @@ int crashing_cpu = -1; static cpumask_t cpus_in_crash = CPU_MASK_NONE; cpumask_t cpus_in_sr = CPU_MASK_NONE; -#define CRASH_HANDLER_MAX 2 +#define CRASH_HANDLER_MAX 3 /* NULL terminated list of shutdown handles */ static crash_shutdown_t crash_shutdown_handles[CRASH_HANDLER_MAX+1]; static DEFINE_SPINLOCK(crash_handlers_lock); @@ -125,7 +125,7 @@ static void crash_kexec_prepare_cpus(int cpu) smp_wmb(); /* - * FIXME: Until we will have the way to stop other CPUSs reliabally, + * FIXME: Until we will have the way to stop other CPUs reliably, * the crash CPU will send an IPI and wait for other CPUs to * respond. * Delay of at least 10 seconds. @@ -254,72 +254,6 @@ void crash_kexec_secondary(struct pt_regs *regs) cpus_in_sr = CPU_MASK_NONE; } #endif -#ifdef CONFIG_SPU_BASE - -#include <asm/spu.h> -#include <asm/spu_priv1.h> - -struct crash_spu_info { - struct spu *spu; - u32 saved_spu_runcntl_RW; - u32 saved_spu_status_R; - u32 saved_spu_npc_RW; - u64 saved_mfc_sr1_RW; - u64 saved_mfc_dar; - u64 saved_mfc_dsisr; -}; - -#define CRASH_NUM_SPUS 16 /* Enough for current hardware */ -static struct crash_spu_info crash_spu_info[CRASH_NUM_SPUS]; - -static void crash_kexec_stop_spus(void) -{ - struct spu *spu; - int i; - u64 tmp; - - for (i = 0; i < CRASH_NUM_SPUS; i++) { - if (!crash_spu_info[i].spu) - continue; - - spu = crash_spu_info[i].spu; - - crash_spu_info[i].saved_spu_runcntl_RW = - in_be32(&spu->problem->spu_runcntl_RW); - crash_spu_info[i].saved_spu_status_R = - in_be32(&spu->problem->spu_status_R); - crash_spu_info[i].saved_spu_npc_RW = - in_be32(&spu->problem->spu_npc_RW); - - crash_spu_info[i].saved_mfc_dar = spu_mfc_dar_get(spu); - crash_spu_info[i].saved_mfc_dsisr = spu_mfc_dsisr_get(spu); - tmp = spu_mfc_sr1_get(spu); - crash_spu_info[i].saved_mfc_sr1_RW = tmp; - - tmp &= ~MFC_STATE1_MASTER_RUN_CONTROL_MASK; - spu_mfc_sr1_set(spu, tmp); - - __delay(200); - } -} - -void crash_register_spus(struct list_head *list) -{ - struct spu *spu; - - list_for_each_entry(spu, list, full_list) { - if (WARN_ON(spu->number >= CRASH_NUM_SPUS)) - continue; - - crash_spu_info[spu->number].spu = spu; - } -} - -#else -static inline void crash_kexec_stop_spus(void) -{ -} -#endif /* CONFIG_SPU_BASE */ /* * Register a function to be called on shutdown. Only use this if you @@ -439,8 +373,6 @@ void default_machine_crash_shutdown(struct pt_regs *regs) crash_shutdown_cpu = -1; __debugger_fault_handler = old_handler; - crash_kexec_stop_spus(); - if (ppc_md.kexec_cpu_down) ppc_md.kexec_cpu_down(1, 0); } diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index c22dc1e..56212bc 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -880,7 +880,18 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_TYPE_47x) */ andi. r10,r9,MSR_EE beq 1f + /* + * Since the ftrace irqsoff latency trace checks CALLER_ADDR1, + * which is the stack frame here, we need to force a stack frame + * in case we came from user space. + */ + stwu r1,-32(r1) + mflr r0 + stw r0,4(r1) + stwu r1,-32(r1) bl trace_hardirqs_on + lwz r1,0(r1) + lwz r1,0(r1) lwz r9,_MSR(r1) 1: #endif /* CONFIG_TRACE_IRQFLAGS */ diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c index df7e20c..49a170a 100644 --- a/arch/powerpc/kernel/machine_kexec.c +++ b/arch/powerpc/kernel/machine_kexec.c @@ -15,6 +15,7 @@ #include <linux/memblock.h> #include <linux/of.h> #include <linux/irq.h> +#include <linux/ftrace.h> #include <asm/machdep.h> #include <asm/prom.h> @@ -44,10 +45,7 @@ void machine_kexec_mask_interrupts(void) { void machine_crash_shutdown(struct pt_regs *regs) { - if (ppc_md.machine_crash_shutdown) - ppc_md.machine_crash_shutdown(regs); - else - default_machine_crash_shutdown(regs); + default_machine_crash_shutdown(regs); } /* @@ -65,8 +63,6 @@ int machine_kexec_prepare(struct kimage *image) void machine_kexec_cleanup(struct kimage *image) { - if (ppc_md.machine_kexec_cleanup) - ppc_md.machine_kexec_cleanup(image); } void arch_crash_save_vmcoreinfo(void) @@ -87,10 +83,13 @@ void arch_crash_save_vmcoreinfo(void) */ void machine_kexec(struct kimage *image) { - if (ppc_md.machine_kexec) - ppc_md.machine_kexec(image); - else - default_machine_kexec(image); + int save_ftrace_enabled; + + save_ftrace_enabled = __ftrace_enabled_save(); + + default_machine_kexec(image); + + __ftrace_enabled_restore(save_ftrace_enabled); /* Fall back to normal restart if we're still alive. */ machine_restart(NULL); diff --git a/arch/powerpc/kernel/perf_event_fsl_emb.c b/arch/powerpc/kernel/perf_event_fsl_emb.c index 4dcf5f8..b0dc8f7 100644 --- a/arch/powerpc/kernel/perf_event_fsl_emb.c +++ b/arch/powerpc/kernel/perf_event_fsl_emb.c @@ -596,6 +596,7 @@ static void record_and_restart(struct perf_event *event, unsigned long val, if (left <= 0) left = period; record = 1; + event->hw.last_period = event->hw.sample_period; } if (left < 0x80000000LL) val = 0x80000000LL - left; diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c index 84906d3..7a1d5cb 100644 --- a/arch/powerpc/kernel/process.c +++ b/arch/powerpc/kernel/process.c @@ -631,7 +631,7 @@ void show_regs(struct pt_regs * regs) #ifdef CONFIG_PPC_ADV_DEBUG_REGS printk("DEAR: "REG", ESR: "REG"\n", regs->dar, regs->dsisr); #else - printk("DAR: "REG", DSISR: "REG"\n", regs->dar, regs->dsisr); + printk("DAR: "REG", DSISR: %08lx\n", regs->dar, regs->dsisr); #endif printk("TASK = %p[%d] '%s' THREAD: %p", current, task_pid_nr(current), current->comm, task_thread_info(current)); diff --git a/arch/powerpc/kernel/rtas_flash.c b/arch/powerpc/kernel/rtas_flash.c index 2b442e6..bf5f5ce 100644 --- a/arch/powerpc/kernel/rtas_flash.c +++ b/arch/powerpc/kernel/rtas_flash.c @@ -256,31 +256,16 @@ static ssize_t rtas_flash_read(struct file *file, char __user *buf, struct proc_dir_entry *dp = PDE(file->f_path.dentry->d_inode); struct rtas_update_flash_t *uf; char msg[RTAS_MSG_MAXLEN]; - int msglen; - uf = (struct rtas_update_flash_t *) dp->data; + uf = dp->data; if (!strcmp(dp->name, FIRMWARE_FLASH_NAME)) { get_flash_status_msg(uf->status, msg); } else { /* FIRMWARE_UPDATE_NAME */ sprintf(msg, "%d\n", uf->status); } - msglen = strlen(msg); - if (msglen > count) - msglen = count; - - if (ppos && *ppos != 0) - return 0; /* be cheap */ - - if (!access_ok(VERIFY_WRITE, buf, msglen)) - return -EINVAL; - if (copy_to_user(buf, msg, msglen)) - return -EFAULT; - - if (ppos) - *ppos = msglen; - return msglen; + return simple_read_from_buffer(buf, count, ppos, msg, strlen(msg)); } /* constructor for flash_block_cache */ @@ -394,26 +379,13 @@ static ssize_t manage_flash_read(struct file *file, char __user *buf, char msg[RTAS_MSG_MAXLEN]; int msglen; - args_buf = (struct rtas_manage_flash_t *) dp->data; + args_buf = dp->data; if (args_buf == NULL) return 0; msglen = sprintf(msg, "%d\n", args_buf->status); - if (msglen > count) - msglen = count; - if (ppos && *ppos != 0) - return 0; /* be cheap */ - - if (!access_ok(VERIFY_WRITE, buf, msglen)) - return -EINVAL; - - if (copy_to_user(buf, msg, msglen)) - return -EFAULT; - - if (ppos) - *ppos = msglen; - return msglen; + return simple_read_from_buffer(buf, count, ppos, msg, msglen); } static ssize_t manage_flash_write(struct file *file, const char __user *buf, @@ -495,24 +467,11 @@ static ssize_t validate_flash_read(struct file *file, char __user *buf, char msg[RTAS_MSG_MAXLEN]; int msglen; - args_buf = (struct rtas_validate_flash_t *) dp->data; + args_buf = dp->data; - if (ppos && *ppos != 0) - return 0; /* be cheap */ - msglen = get_validate_flash_msg(args_buf, msg); - if (msglen > count) - msglen = count; - - if (!access_ok(VERIFY_WRITE, buf, msglen)) - return -EINVAL; - - if (copy_to_user(buf, msg, msglen)) - return -EFAULT; - if (ppos) - *ppos = msglen; - return msglen; + return simple_read_from_buffer(buf, count, ppos, msg, msglen); } static ssize_t validate_flash_write(struct file *file, const char __user *buf, diff --git a/arch/powerpc/kernel/rtasd.c b/arch/powerpc/kernel/rtasd.c index 0438f81..049dbec 100644 --- a/arch/powerpc/kernel/rtasd.c +++ b/arch/powerpc/kernel/rtasd.c @@ -160,7 +160,7 @@ static int log_rtas_len(char * buf) /* rtas fixed header */ len = 8; err = (struct rtas_error_log *)buf; - if (err->extended_log_length) { + if (err->extended && err->extended_log_length) { /* extended header */ len += err->extended_log_length; diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 09e4dea..09d31db 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -265,11 +265,26 @@ void accumulate_stolen_time(void) { u64 sst, ust; - sst = scan_dispatch_log(get_paca()->starttime_user); - ust = scan_dispatch_log(get_paca()->starttime); - get_paca()->system_time -= sst; - get_paca()->user_time -= ust; - get_paca()->stolen_time += ust + sst; + u8 save_soft_enabled = local_paca->soft_enabled; + u8 save_hard_enabled = local_paca->hard_enabled; + + /* We are called early in the exception entry, before + * soft/hard_enabled are sync'ed to the expected state + * for the exception. We are hard disabled but the PACA + * needs to reflect that so various debug stuff doesn't + * complain + */ + local_paca->soft_enabled = 0; + local_paca->hard_enabled = 0; + + sst = scan_dispatch_log(local_paca->starttime_user); + ust = scan_dispatch_log(local_paca->starttime); + local_paca->system_time -= sst; + local_paca->user_time -= ust; + local_paca->stolen_time += ust + sst; + + local_paca->soft_enabled = save_soft_enabled; + local_paca->hard_enabled = save_hard_enabled; } static inline u64 calculate_stolen_time(u64 stop_tb) diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 1b2cdc8..bd74fac 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -626,12 +626,6 @@ void machine_check_exception(struct pt_regs *regs) if (recover > 0) return; - if (user_mode(regs)) { - regs->msr |= MSR_RI; - _exception(SIGBUS, regs, BUS_ADRERR, regs->nip); - return; - } - #if defined(CONFIG_8xx) && defined(CONFIG_PCI) /* the qspan pci read routines can cause machine checks -- Cort * @@ -643,16 +637,12 @@ void machine_check_exception(struct pt_regs *regs) return; #endif - if (debugger_fault_handler(regs)) { - regs->msr |= MSR_RI; + if (debugger_fault_handler(regs)) return; - } if (check_io_access(regs)) return; - if (debugger_fault_handler(regs)) - return; die("Machine check", regs, SIGBUS); /* Must die if the interrupt is not recoverable */ |