diff options
Diffstat (limited to 'arch/s390/kernel')
| -rw-r--r-- | arch/s390/kernel/head.S | 6 | ||||
| -rw-r--r-- | arch/s390/kernel/irq.c | 95 | ||||
| -rw-r--r-- | arch/s390/kernel/mcount.S | 10 | ||||
| -rw-r--r-- | arch/s390/kernel/mcount64.S | 3 | ||||
| -rw-r--r-- | arch/s390/kernel/perf_cpum_cf.c | 12 | ||||
| -rw-r--r-- | arch/s390/kernel/ptrace.c | 12 | ||||
| -rw-r--r-- | arch/s390/kernel/setup.c | 2 | ||||
| -rw-r--r-- | arch/s390/kernel/time.c | 16 | ||||
| -rw-r--r-- | arch/s390/kernel/vdso.c | 15 |
9 files changed, 82 insertions, 89 deletions
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S index 7ba7d6784510..e88d35d74950 100644 --- a/arch/s390/kernel/head.S +++ b/arch/s390/kernel/head.S @@ -437,11 +437,11 @@ ENTRY(startup_kdump) #if defined(CONFIG_64BIT) #if defined(CONFIG_MARCH_ZEC12) - .long 3, 0xc100efea, 0xf46ce800, 0x00400000 + .long 3, 0xc100eff2, 0xf46ce800, 0x00400000 #elif defined(CONFIG_MARCH_Z196) - .long 2, 0xc100efea, 0xf46c0000 + .long 2, 0xc100eff2, 0xf46c0000 #elif defined(CONFIG_MARCH_Z10) - .long 2, 0xc100efea, 0xf0680000 + .long 2, 0xc100eff2, 0xf0680000 #elif defined(CONFIG_MARCH_Z9_109) .long 1, 0xc100efc2 #elif defined(CONFIG_MARCH_Z990) diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index 99b0b09646ca..8eb82443cfbd 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -30,6 +30,7 @@ DEFINE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat); EXPORT_PER_CPU_SYMBOL_GPL(irq_stat); struct irq_class { + int irq; char *name; char *desc; }; @@ -45,9 +46,9 @@ struct irq_class { * up with having a sum which accounts each interrupt twice. */ static const struct irq_class irqclass_main_desc[NR_IRQS_BASE] = { - [EXT_INTERRUPT] = {.name = "EXT"}, - [IO_INTERRUPT] = {.name = "I/O"}, - [THIN_INTERRUPT] = {.name = "AIO"}, + {.irq = EXT_INTERRUPT, .name = "EXT"}, + {.irq = IO_INTERRUPT, .name = "I/O"}, + {.irq = THIN_INTERRUPT, .name = "AIO"}, }; /* @@ -56,38 +57,38 @@ static const struct irq_class irqclass_main_desc[NR_IRQS_BASE] = { * In addition this list contains non external / I/O events like NMIs. */ static const struct irq_class irqclass_sub_desc[NR_ARCH_IRQS] = { - [IRQEXT_CLK] = {.name = "CLK", .desc = "[EXT] Clock Comparator"}, - [IRQEXT_EXC] = {.name = "EXC", .desc = "[EXT] External Call"}, - [IRQEXT_EMS] = {.name = "EMS", .desc = "[EXT] Emergency Signal"}, - [IRQEXT_TMR] = {.name = "TMR", .desc = "[EXT] CPU Timer"}, - [IRQEXT_TLA] = {.name = "TAL", .desc = "[EXT] Timing Alert"}, - [IRQEXT_PFL] = {.name = "PFL", .desc = "[EXT] Pseudo Page Fault"}, - [IRQEXT_DSD] = {.name = "DSD", .desc = "[EXT] DASD Diag"}, - [IRQEXT_VRT] = {.name = "VRT", .desc = "[EXT] Virtio"}, - [IRQEXT_SCP] = {.name = "SCP", .desc = "[EXT] Service Call"}, - [IRQEXT_IUC] = {.name = "IUC", .desc = "[EXT] IUCV"}, - [IRQEXT_CMS] = {.name = "CMS", .desc = "[EXT] CPU-Measurement: Sampling"}, - [IRQEXT_CMC] = {.name = "CMC", .desc = "[EXT] CPU-Measurement: Counter"}, - [IRQEXT_CMR] = {.name = "CMR", .desc = "[EXT] CPU-Measurement: RI"}, - [IRQIO_CIO] = {.name = "CIO", .desc = "[I/O] Common I/O Layer Interrupt"}, - [IRQIO_QAI] = {.name = "QAI", .desc = "[I/O] QDIO Adapter Interrupt"}, - [IRQIO_DAS] = {.name = "DAS", .desc = "[I/O] DASD"}, - [IRQIO_C15] = {.name = "C15", .desc = "[I/O] 3215"}, - [IRQIO_C70] = {.name = "C70", .desc = "[I/O] 3270"}, - [IRQIO_TAP] = {.name = "TAP", .desc = "[I/O] Tape"}, - [IRQIO_VMR] = {.name = "VMR", .desc = "[I/O] Unit Record Devices"}, - [IRQIO_LCS] = {.name = "LCS", .desc = "[I/O] LCS"}, - [IRQIO_CLW] = {.name = "CLW", .desc = "[I/O] CLAW"}, - [IRQIO_CTC] = {.name = "CTC", .desc = "[I/O] CTC"}, - [IRQIO_APB] = {.name = "APB", .desc = "[I/O] AP Bus"}, - [IRQIO_ADM] = {.name = "ADM", .desc = "[I/O] EADM Subchannel"}, - [IRQIO_CSC] = {.name = "CSC", .desc = "[I/O] CHSC Subchannel"}, - [IRQIO_PCI] = {.name = "PCI", .desc = "[I/O] PCI Interrupt" }, - [IRQIO_MSI] = {.name = "MSI", .desc = "[I/O] MSI Interrupt" }, - [IRQIO_VIR] = {.name = "VIR", .desc = "[I/O] Virtual I/O Devices"}, - [IRQIO_VAI] = {.name = "VAI", .desc = "[I/O] Virtual I/O Devices AI"}, - [NMI_NMI] = {.name = "NMI", .desc = "[NMI] Machine Check"}, - [CPU_RST] = {.name = "RST", .desc = "[CPU] CPU Restart"}, + {.irq = IRQEXT_CLK, .name = "CLK", .desc = "[EXT] Clock Comparator"}, + {.irq = IRQEXT_EXC, .name = "EXC", .desc = "[EXT] External Call"}, + {.irq = IRQEXT_EMS, .name = "EMS", .desc = "[EXT] Emergency Signal"}, + {.irq = IRQEXT_TMR, .name = "TMR", .desc = "[EXT] CPU Timer"}, + {.irq = IRQEXT_TLA, .name = "TAL", .desc = "[EXT] Timing Alert"}, + {.irq = IRQEXT_PFL, .name = "PFL", .desc = "[EXT] Pseudo Page Fault"}, + {.irq = IRQEXT_DSD, .name = "DSD", .desc = "[EXT] DASD Diag"}, + {.irq = IRQEXT_VRT, .name = "VRT", .desc = "[EXT] Virtio"}, + {.irq = IRQEXT_SCP, .name = "SCP", .desc = "[EXT] Service Call"}, + {.irq = IRQEXT_IUC, .name = "IUC", .desc = "[EXT] IUCV"}, + {.irq = IRQEXT_CMS, .name = "CMS", .desc = "[EXT] CPU-Measurement: Sampling"}, + {.irq = IRQEXT_CMC, .name = "CMC", .desc = "[EXT] CPU-Measurement: Counter"}, + {.irq = IRQEXT_CMR, .name = "CMR", .desc = "[EXT] CPU-Measurement: RI"}, + {.irq = IRQIO_CIO, .name = "CIO", .desc = "[I/O] Common I/O Layer Interrupt"}, + {.irq = IRQIO_QAI, .name = "QAI", .desc = "[I/O] QDIO Adapter Interrupt"}, + {.irq = IRQIO_DAS, .name = "DAS", .desc = "[I/O] DASD"}, + {.irq = IRQIO_C15, .name = "C15", .desc = "[I/O] 3215"}, + {.irq = IRQIO_C70, .name = "C70", .desc = "[I/O] 3270"}, + {.irq = IRQIO_TAP, .name = "TAP", .desc = "[I/O] Tape"}, + {.irq = IRQIO_VMR, .name = "VMR", .desc = "[I/O] Unit Record Devices"}, + {.irq = IRQIO_LCS, .name = "LCS", .desc = "[I/O] LCS"}, + {.irq = IRQIO_CLW, .name = "CLW", .desc = "[I/O] CLAW"}, + {.irq = IRQIO_CTC, .name = "CTC", .desc = "[I/O] CTC"}, + {.irq = IRQIO_APB, .name = "APB", .desc = "[I/O] AP Bus"}, + {.irq = IRQIO_ADM, .name = "ADM", .desc = "[I/O] EADM Subchannel"}, + {.irq = IRQIO_CSC, .name = "CSC", .desc = "[I/O] CHSC Subchannel"}, + {.irq = IRQIO_PCI, .name = "PCI", .desc = "[I/O] PCI Interrupt" }, + {.irq = IRQIO_MSI, .name = "MSI", .desc = "[I/O] MSI Interrupt" }, + {.irq = IRQIO_VIR, .name = "VIR", .desc = "[I/O] Virtual I/O Devices"}, + {.irq = IRQIO_VAI, .name = "VAI", .desc = "[I/O] Virtual I/O Devices AI"}, + {.irq = NMI_NMI, .name = "NMI", .desc = "[NMI] Machine Check"}, + {.irq = CPU_RST, .name = "RST", .desc = "[CPU] CPU Restart"}, }; void __init init_IRQ(void) @@ -116,33 +117,37 @@ void do_IRQ(struct pt_regs *regs, int irq) */ int show_interrupts(struct seq_file *p, void *v) { - int irq = *(loff_t *) v; - int cpu; + int index = *(loff_t *) v; + int cpu, irq; get_online_cpus(); - if (irq == 0) { + if (index == 0) { seq_puts(p, " "); for_each_online_cpu(cpu) seq_printf(p, "CPU%d ", cpu); seq_putc(p, '\n'); goto out; } - if (irq < NR_IRQS) { - if (irq >= NR_IRQS_BASE) + if (index < NR_IRQS) { + if (index >= NR_IRQS_BASE) goto out; - seq_printf(p, "%s: ", irqclass_main_desc[irq].name); + /* Adjust index to process irqclass_main_desc array entries */ + index--; + seq_printf(p, "%s: ", irqclass_main_desc[index].name); + irq = irqclass_main_desc[index].irq; for_each_online_cpu(cpu) seq_printf(p, "%10u ", kstat_irqs_cpu(irq, cpu)); seq_putc(p, '\n'); goto out; } - for (irq = 0; irq < NR_ARCH_IRQS; irq++) { - seq_printf(p, "%s: ", irqclass_sub_desc[irq].name); + for (index = 0; index < NR_ARCH_IRQS; index++) { + seq_printf(p, "%s: ", irqclass_sub_desc[index].name); + irq = irqclass_sub_desc[index].irq; for_each_online_cpu(cpu) seq_printf(p, "%10u ", per_cpu(irq_stat, cpu).irqs[irq]); - if (irqclass_sub_desc[irq].desc) - seq_printf(p, " %s", irqclass_sub_desc[irq].desc); + if (irqclass_sub_desc[index].desc) + seq_printf(p, " %s", irqclass_sub_desc[index].desc); seq_putc(p, '\n'); } out: diff --git a/arch/s390/kernel/mcount.S b/arch/s390/kernel/mcount.S index 08dcf21cb8df..433c6dbfa442 100644 --- a/arch/s390/kernel/mcount.S +++ b/arch/s390/kernel/mcount.S @@ -21,13 +21,9 @@ ENTRY(_mcount) ENTRY(ftrace_caller) #endif stm %r2,%r5,16(%r15) - bras %r1,2f + bras %r1,1f 0: .long ftrace_trace_function -1: .long function_trace_stop -2: l %r2,1b-0b(%r1) - icm %r2,0xf,0(%r2) - jnz 3f - st %r14,56(%r15) +1: st %r14,56(%r15) lr %r0,%r15 ahi %r15,-96 l %r3,100(%r15) @@ -50,7 +46,7 @@ ENTRY(ftrace_graph_caller) #endif ahi %r15,96 l %r14,56(%r15) -3: lm %r2,%r5,16(%r15) + lm %r2,%r5,16(%r15) br %r14 #ifdef CONFIG_FUNCTION_GRAPH_TRACER diff --git a/arch/s390/kernel/mcount64.S b/arch/s390/kernel/mcount64.S index 1c52eae3396a..c67a8bf0fd9a 100644 --- a/arch/s390/kernel/mcount64.S +++ b/arch/s390/kernel/mcount64.S @@ -20,9 +20,6 @@ ENTRY(_mcount) ENTRY(ftrace_caller) #endif - larl %r1,function_trace_stop - icm %r1,0xf,0(%r1) - bnzr %r14 stmg %r2,%r5,32(%r15) stg %r14,112(%r15) lgr %r1,%r15 diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c index ea75d011a6fc..d3194de7ae1e 100644 --- a/arch/s390/kernel/perf_cpum_cf.c +++ b/arch/s390/kernel/perf_cpum_cf.c @@ -411,12 +411,6 @@ static int cpumf_pmu_event_init(struct perf_event *event) case PERF_TYPE_HARDWARE: case PERF_TYPE_HW_CACHE: case PERF_TYPE_RAW: - /* The CPU measurement counter facility does not have overflow - * interrupts to do sampling. Sampling must be provided by - * external means, for example, by timers. - */ - if (is_sampling_event(event)) - return -ENOENT; err = __hw_perf_event_init(event); break; default: @@ -681,6 +675,12 @@ static int __init cpumf_pmu_init(void) goto out; } + /* The CPU measurement counter facility does not have overflow + * interrupts to do sampling. Sampling must be provided by + * external means, for example, by timers. + */ + cpumf_pmu.capabilities |= PERF_PMU_CAP_NO_INTERRUPT; + cpumf_pmu.attr_groups = cpumf_cf_event_group(); rc = perf_pmu_register(&cpumf_pmu, "cpum_cf", PERF_TYPE_RAW); if (rc) { diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c index 2d716734b5b1..5dc7ad9e2fbf 100644 --- a/arch/s390/kernel/ptrace.c +++ b/arch/s390/kernel/ptrace.c @@ -334,9 +334,14 @@ static int __poke_user(struct task_struct *child, addr_t addr, addr_t data) unsigned long mask = PSW_MASK_USER; mask |= is_ri_task(child) ? PSW_MASK_RI : 0; - if ((data & ~mask) != PSW_USER_BITS) + if ((data ^ PSW_USER_BITS) & ~mask) + /* Invalid psw mask. */ + return -EINVAL; + if ((data & PSW_MASK_ASC) == PSW_ASC_HOME) + /* Invalid address-space-control bits */ return -EINVAL; if ((data & PSW_MASK_EA) && !(data & PSW_MASK_BA)) + /* Invalid addressing mode bits */ return -EINVAL; } *(addr_t *)((addr_t) &task_pt_regs(child)->psw + addr) = data; @@ -672,9 +677,12 @@ static int __poke_user_compat(struct task_struct *child, mask |= is_ri_task(child) ? PSW32_MASK_RI : 0; /* Build a 64 bit psw mask from 31 bit mask. */ - if ((tmp & ~mask) != PSW32_USER_BITS) + if ((tmp ^ PSW32_USER_BITS) & ~mask) /* Invalid psw mask. */ return -EINVAL; + if ((data & PSW32_MASK_ASC) == PSW32_ASC_HOME) + /* Invalid address-space-control bits */ + return -EINVAL; regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) | (regs->psw.mask & PSW_MASK_BA) | (__u64)(tmp & mask) << 32; diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 1e2264b46e4c..ae1d5be7dd88 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -501,6 +501,8 @@ static int kdump_mem_notifier(struct notifier_block *nb, { struct memory_notify *arg = data; + if (action != MEM_GOING_OFFLINE) + return NOTIFY_OK; if (arg->start_pfn < PFN_DOWN(resource_size(&crashk_res))) return NOTIFY_BAD; if (arg->start_pfn > PFN_DOWN(crashk_res.end)) diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c index 0931b110c826..4cef607f3711 100644 --- a/arch/s390/kernel/time.c +++ b/arch/s390/kernel/time.c @@ -214,26 +214,26 @@ void update_vsyscall(struct timekeeper *tk) { u64 nsecps; - if (tk->clock != &clocksource_tod) + if (tk->tkr.clock != &clocksource_tod) return; /* Make userspace gettimeofday spin until we're done. */ ++vdso_data->tb_update_count; smp_wmb(); - vdso_data->xtime_tod_stamp = tk->clock->cycle_last; + vdso_data->xtime_tod_stamp = tk->tkr.cycle_last; vdso_data->xtime_clock_sec = tk->xtime_sec; - vdso_data->xtime_clock_nsec = tk->xtime_nsec; + vdso_data->xtime_clock_nsec = tk->tkr.xtime_nsec; vdso_data->wtom_clock_sec = tk->xtime_sec + tk->wall_to_monotonic.tv_sec; - vdso_data->wtom_clock_nsec = tk->xtime_nsec + - + ((u64) tk->wall_to_monotonic.tv_nsec << tk->shift); - nsecps = (u64) NSEC_PER_SEC << tk->shift; + vdso_data->wtom_clock_nsec = tk->tkr.xtime_nsec + + + ((u64) tk->wall_to_monotonic.tv_nsec << tk->tkr.shift); + nsecps = (u64) NSEC_PER_SEC << tk->tkr.shift; while (vdso_data->wtom_clock_nsec >= nsecps) { vdso_data->wtom_clock_nsec -= nsecps; vdso_data->wtom_clock_sec++; } - vdso_data->tk_mult = tk->mult; - vdso_data->tk_shift = tk->shift; + vdso_data->tk_mult = tk->tkr.mult; + vdso_data->tk_shift = tk->tkr.shift; smp_wmb(); ++vdso_data->tb_update_count; } diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c index 613649096783..0bbb7e027c5a 100644 --- a/arch/s390/kernel/vdso.c +++ b/arch/s390/kernel/vdso.c @@ -316,18 +316,3 @@ static int __init vdso_init(void) return 0; } early_initcall(vdso_init); - -int in_gate_area_no_mm(unsigned long addr) -{ - return 0; -} - -int in_gate_area(struct mm_struct *mm, unsigned long addr) -{ - return 0; -} - -struct vm_area_struct *get_gate_vma(struct mm_struct *mm) -{ - return NULL; -} |
