diff options
Diffstat (limited to 'arch/s390/kernel')
-rw-r--r-- | arch/s390/kernel/cache.c | 15 | ||||
-rw-r--r-- | arch/s390/kernel/crash_dump.c | 51 | ||||
-rw-r--r-- | arch/s390/kernel/entry.S | 16 | ||||
-rw-r--r-- | arch/s390/kernel/entry64.S | 11 | ||||
-rw-r--r-- | arch/s390/kernel/irq.c | 160 | ||||
-rw-r--r-- | arch/s390/kernel/kprobes.c | 21 | ||||
-rw-r--r-- | arch/s390/kernel/nmi.c | 5 | ||||
-rw-r--r-- | arch/s390/kernel/perf_cpum_cf.c | 4 | ||||
-rw-r--r-- | arch/s390/kernel/perf_event.c | 9 | ||||
-rw-r--r-- | arch/s390/kernel/process.c | 1 | ||||
-rw-r--r-- | arch/s390/kernel/processor.c | 2 | ||||
-rw-r--r-- | arch/s390/kernel/ptrace.c | 52 | ||||
-rw-r--r-- | arch/s390/kernel/setup.c | 1 | ||||
-rw-r--r-- | arch/s390/kernel/smp.c | 17 | ||||
-rw-r--r-- | arch/s390/kernel/suspend.c | 11 | ||||
-rw-r--r-- | arch/s390/kernel/swsusp_asm64.S | 7 | ||||
-rw-r--r-- | arch/s390/kernel/sysinfo.c | 2 | ||||
-rw-r--r-- | arch/s390/kernel/time.c | 1 | ||||
-rw-r--r-- | arch/s390/kernel/vdso.c | 6 | ||||
-rw-r--r-- | arch/s390/kernel/vtime.c | 7 |
20 files changed, 231 insertions, 168 deletions
diff --git a/arch/s390/kernel/cache.c b/arch/s390/kernel/cache.c index 64b24650e4f8..dd62071624be 100644 --- a/arch/s390/kernel/cache.c +++ b/arch/s390/kernel/cache.c @@ -173,7 +173,7 @@ error: } } -static struct cache_dir *__cpuinit cache_create_cache_dir(int cpu) +static struct cache_dir *cache_create_cache_dir(int cpu) { struct cache_dir *cache_dir; struct kobject *kobj = NULL; @@ -289,9 +289,8 @@ static struct kobj_type cache_index_type = { .default_attrs = cache_index_default_attrs, }; -static int __cpuinit cache_create_index_dir(struct cache_dir *cache_dir, - struct cache *cache, int index, - int cpu) +static int cache_create_index_dir(struct cache_dir *cache_dir, + struct cache *cache, int index, int cpu) { struct cache_index_dir *index_dir; int rc; @@ -313,7 +312,7 @@ out: return rc; } -static int __cpuinit cache_add_cpu(int cpu) +static int cache_add_cpu(int cpu) { struct cache_dir *cache_dir; struct cache *cache; @@ -335,7 +334,7 @@ static int __cpuinit cache_add_cpu(int cpu) return 0; } -static void __cpuinit cache_remove_cpu(int cpu) +static void cache_remove_cpu(int cpu) { struct cache_index_dir *index, *next; struct cache_dir *cache_dir; @@ -354,8 +353,8 @@ static void __cpuinit cache_remove_cpu(int cpu) cache_dir_cpu[cpu] = NULL; } -static int __cpuinit cache_hotplug(struct notifier_block *nfb, - unsigned long action, void *hcpu) +static int cache_hotplug(struct notifier_block *nfb, unsigned long action, + void *hcpu) { int cpu = (long)hcpu; int rc = 0; diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c index f703d91bf720..d8f355657171 100644 --- a/arch/s390/kernel/crash_dump.c +++ b/arch/s390/kernel/crash_dump.c @@ -21,6 +21,48 @@ #define PTR_SUB(x, y) (((char *) (x)) - ((unsigned long) (y))) #define PTR_DIFF(x, y) ((unsigned long)(((char *) (x)) - ((unsigned long) (y)))) + +/* + * Return physical address for virtual address + */ +static inline void *load_real_addr(void *addr) +{ + unsigned long real_addr; + + asm volatile( + " lra %0,0(%1)\n" + " jz 0f\n" + " la %0,0\n" + "0:" + : "=a" (real_addr) : "a" (addr) : "cc"); + return (void *)real_addr; +} + +/* + * Copy up to one page to vmalloc or real memory + */ +static ssize_t copy_page_real(void *buf, void *src, size_t csize) +{ + size_t size; + + if (is_vmalloc_addr(buf)) { + BUG_ON(csize >= PAGE_SIZE); + /* If buf is not page aligned, copy first part */ + size = min(roundup(__pa(buf), PAGE_SIZE) - __pa(buf), csize); + if (size) { + if (memcpy_real(load_real_addr(buf), src, size)) + return -EFAULT; + buf += size; + src += size; + } + /* Copy second part */ + size = csize - size; + return (size) ? memcpy_real(load_real_addr(buf), src, size) : 0; + } else { + return memcpy_real(buf, src, csize); + } +} + /* * Copy one page from "oldmem" * @@ -32,6 +74,7 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf, size_t csize, unsigned long offset, int userbuf) { unsigned long src; + int rc; if (!csize) return 0; @@ -43,11 +86,11 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf, src < OLDMEM_BASE + OLDMEM_SIZE) src -= OLDMEM_BASE; if (userbuf) - copy_to_user_real((void __force __user *) buf, (void *) src, - csize); + rc = copy_to_user_real((void __force __user *) buf, + (void *) src, csize); else - memcpy_real(buf, (void *) src, csize); - return csize; + rc = copy_page_real(buf, (void *) src, csize); + return (rc == 0) ? csize : rc; } /* diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index be7a408be7a1..cc30d1fb000c 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -18,6 +18,7 @@ #include <asm/unistd.h> #include <asm/page.h> #include <asm/sigp.h> +#include <asm/irq.h> __PT_R0 = __PT_GPRS __PT_R1 = __PT_GPRS + 4 @@ -435,6 +436,11 @@ io_skip: io_loop: l %r1,BASED(.Ldo_IRQ) lr %r2,%r11 # pass pointer to pt_regs + lhi %r3,IO_INTERRUPT + tm __PT_INT_CODE+8(%r11),0x80 # adapter interrupt ? + jz io_call + lhi %r3,THIN_INTERRUPT +io_call: basr %r14,%r1 # call do_IRQ tm __LC_MACHINE_FLAGS+2,0x10 # MACHINE_FLAG_LPAR jz io_return @@ -584,9 +590,10 @@ ext_skip: mvc __PT_INT_CODE(4,%r11),__LC_EXT_CPU_ADDR mvc __PT_INT_PARM(4,%r11),__LC_EXT_PARAMS TRACE_IRQS_OFF + l %r1,BASED(.Ldo_IRQ) lr %r2,%r11 # pass pointer to pt_regs - l %r1,BASED(.Ldo_extint) - basr %r14,%r1 # call do_extint + lhi %r3,EXT_INTERRUPT + basr %r14,%r1 # call do_IRQ j io_return /* @@ -879,13 +886,13 @@ cleanup_idle: stm %r9,%r10,__LC_SYSTEM_TIMER mvc __LC_LAST_UPDATE_TIMER(8),__TIMER_IDLE_EXIT(%r2) # prepare return psw - n %r8,BASED(cleanup_idle_wait) # clear wait state bit + n %r8,BASED(cleanup_idle_wait) # clear irq & wait state bits l %r9,24(%r11) # return from psw_idle br %r14 cleanup_idle_insn: .long psw_idle_lpsw + 0x80000000 cleanup_idle_wait: - .long 0xfffdffff + .long 0xfcfdffff /* * Integer constants @@ -902,7 +909,6 @@ cleanup_idle_wait: .Ldo_machine_check: .long s390_do_machine_check .Lhandle_mcck: .long s390_handle_mcck .Ldo_IRQ: .long do_IRQ -.Ldo_extint: .long do_extint .Ldo_signal: .long do_signal .Ldo_notify_resume: .long do_notify_resume .Ldo_per_trap: .long do_per_trap diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S index 1c039d0c24c7..2b2188b97c6a 100644 --- a/arch/s390/kernel/entry64.S +++ b/arch/s390/kernel/entry64.S @@ -19,6 +19,7 @@ #include <asm/unistd.h> #include <asm/page.h> #include <asm/sigp.h> +#include <asm/irq.h> __PT_R0 = __PT_GPRS __PT_R1 = __PT_GPRS + 8 @@ -468,6 +469,11 @@ io_skip: xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15) io_loop: lgr %r2,%r11 # pass pointer to pt_regs + lghi %r3,IO_INTERRUPT + tm __PT_INT_CODE+8(%r11),0x80 # adapter interrupt ? + jz io_call + lghi %r3,THIN_INTERRUPT +io_call: brasl %r14,do_IRQ tm __LC_MACHINE_FLAGS+6,0x10 # MACHINE_FLAG_LPAR jz io_return @@ -623,7 +629,8 @@ ext_skip: TRACE_IRQS_OFF xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15) lgr %r2,%r11 # pass pointer to pt_regs - brasl %r14,do_extint + lghi %r3,EXT_INTERRUPT + brasl %r14,do_IRQ j io_return /* @@ -922,7 +929,7 @@ cleanup_idle: stg %r9,__LC_SYSTEM_TIMER mvc __LC_LAST_UPDATE_TIMER(8),__TIMER_IDLE_EXIT(%r2) # prepare return psw - nihh %r8,0xfffd # clear wait state bit + nihh %r8,0xfcfd # clear irq & wait state bits lg %r9,48(%r11) # return from psw_idle br %r14 cleanup_idle_insn: diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index 54b0995514e8..b34ba0ea96a9 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -22,6 +22,7 @@ #include <asm/cputime.h> #include <asm/lowcore.h> #include <asm/irq.h> +#include <asm/hw_irq.h> #include "entry.h" DEFINE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat); @@ -42,9 +43,10 @@ struct irq_class { * Since the external and I/O interrupt fields are already sums we would end * up with having a sum which accounts each interrupt twice. */ -static const struct irq_class irqclass_main_desc[NR_IRQS] = { - [EXTERNAL_INTERRUPT] = {.name = "EXT"}, - [IO_INTERRUPT] = {.name = "I/O"} +static const struct irq_class irqclass_main_desc[NR_IRQS_BASE] = { + [EXT_INTERRUPT] = {.name = "EXT"}, + [IO_INTERRUPT] = {.name = "I/O"}, + [THIN_INTERRUPT] = {.name = "AIO"}, }; /* @@ -86,6 +88,28 @@ static const struct irq_class irqclass_sub_desc[NR_ARCH_IRQS] = { [CPU_RST] = {.name = "RST", .desc = "[CPU] CPU Restart"}, }; +void __init init_IRQ(void) +{ + irq_reserve_irqs(0, THIN_INTERRUPT); + init_cio_interrupts(); + init_airq_interrupts(); + init_ext_interrupts(); +} + +void do_IRQ(struct pt_regs *regs, int irq) +{ + struct pt_regs *old_regs; + + old_regs = set_irq_regs(regs); + irq_enter(); + if (S390_lowcore.int_clock >= S390_lowcore.clock_comparator) + /* Serve timer interrupts first. */ + clock_comparator_work(); + generic_handle_irq(irq); + irq_exit(); + set_irq_regs(old_regs); +} + /* * show_interrupts is needed by /proc/interrupts. */ @@ -100,27 +124,36 @@ int show_interrupts(struct seq_file *p, void *v) 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) + goto out; seq_printf(p, "%s: ", irqclass_main_desc[irq].name); for_each_online_cpu(cpu) - seq_printf(p, "%10u ", kstat_cpu(cpu).irqs[irq]); + seq_printf(p, "%10u ", kstat_irqs_cpu(irq, cpu)); seq_putc(p, '\n'); - goto skip_arch_irqs; + goto out; } for (irq = 0; irq < NR_ARCH_IRQS; irq++) { seq_printf(p, "%s: ", irqclass_sub_desc[irq].name); for_each_online_cpu(cpu) - seq_printf(p, "%10u ", per_cpu(irq_stat, cpu).irqs[irq]); + 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); seq_putc(p, '\n'); } -skip_arch_irqs: +out: put_online_cpus(); return 0; } +int arch_show_interrupts(struct seq_file *p, int prec) +{ + return 0; +} + /* * Switch to the asynchronous interrupt stack for softirq execution. */ @@ -159,14 +192,6 @@ asmlinkage void do_softirq(void) local_irq_restore(flags); } -#ifdef CONFIG_PROC_FS -void init_irq_proc(void) -{ - if (proc_mkdir("irq", NULL)) - create_prof_cpu_mask(); -} -#endif - /* * ext_int_hash[index] is the list head for all external interrupts that hash * to this index. @@ -183,14 +208,6 @@ struct ext_int_info { /* ext_int_hash_lock protects the handler lists for external interrupts */ DEFINE_SPINLOCK(ext_int_hash_lock); -static void __init init_external_interrupts(void) -{ - int idx; - - for (idx = 0; idx < ARRAY_SIZE(ext_int_hash); idx++) - INIT_LIST_HEAD(&ext_int_hash[idx]); -} - static inline int ext_hash(u16 code) { return (code + (code >> 9)) & 0xff; @@ -234,20 +251,13 @@ int unregister_external_interrupt(u16 code, ext_int_handler_t handler) } EXPORT_SYMBOL(unregister_external_interrupt); -void __irq_entry do_extint(struct pt_regs *regs) +static irqreturn_t do_ext_interrupt(int irq, void *dummy) { + struct pt_regs *regs = get_irq_regs(); struct ext_code ext_code; - struct pt_regs *old_regs; struct ext_int_info *p; int index; - old_regs = set_irq_regs(regs); - irq_enter(); - if (S390_lowcore.int_clock >= S390_lowcore.clock_comparator) { - /* Serve timer interrupts first. */ - clock_comparator_work(); - } - kstat_incr_irqs_this_cpu(EXTERNAL_INTERRUPT, NULL); ext_code = *(struct ext_code *) ®s->int_code; if (ext_code.code != 0x1004) __get_cpu_var(s390_idle).nohz_delay = 1; @@ -259,13 +269,25 @@ void __irq_entry do_extint(struct pt_regs *regs) p->handler(ext_code, regs->int_parm, regs->int_parm_long); rcu_read_unlock(); - irq_exit(); - set_irq_regs(old_regs); + + return IRQ_HANDLED; } -void __init init_IRQ(void) +static struct irqaction external_interrupt = { + .name = "EXT", + .handler = do_ext_interrupt, +}; + +void __init init_ext_interrupts(void) { - init_external_interrupts(); + int idx; + + for (idx = 0; idx < ARRAY_SIZE(ext_int_hash); idx++) + INIT_LIST_HEAD(&ext_int_hash[idx]); + + irq_set_chip_and_handler(EXT_INTERRUPT, + &dummy_irq_chip, handle_percpu_irq); + setup_irq(EXT_INTERRUPT, &external_interrupt); } static DEFINE_SPINLOCK(sc_irq_lock); @@ -313,69 +335,3 @@ void measurement_alert_subclass_unregister(void) spin_unlock(&ma_subclass_lock); } EXPORT_SYMBOL(measurement_alert_subclass_unregister); - -#ifdef CONFIG_SMP -void synchronize_irq(unsigned int irq) -{ - /* - * Not needed, the handler is protected by a lock and IRQs that occur - * after the handler is deleted are just NOPs. - */ -} -EXPORT_SYMBOL_GPL(synchronize_irq); -#endif - -#ifndef CONFIG_PCI - -/* Only PCI devices have dynamically-defined IRQ handlers */ - -int request_irq(unsigned int irq, irq_handler_t handler, - unsigned long irqflags, const char *devname, void *dev_id) -{ - return -EINVAL; -} -EXPORT_SYMBOL_GPL(request_irq); - -void free_irq(unsigned int irq, void *dev_id) -{ - WARN_ON(1); -} -EXPORT_SYMBOL_GPL(free_irq); - -void enable_irq(unsigned int irq) -{ - WARN_ON(1); -} -EXPORT_SYMBOL_GPL(enable_irq); - -void disable_irq(unsigned int irq) -{ - WARN_ON(1); -} -EXPORT_SYMBOL_GPL(disable_irq); - -#endif /* !CONFIG_PCI */ - -void disable_irq_nosync(unsigned int irq) -{ - disable_irq(irq); -} -EXPORT_SYMBOL_GPL(disable_irq_nosync); - -unsigned long probe_irq_on(void) -{ - return 0; -} -EXPORT_SYMBOL_GPL(probe_irq_on); - -int probe_irq_off(unsigned long val) -{ - return 0; -} -EXPORT_SYMBOL_GPL(probe_irq_off); - -unsigned int probe_irq_mask(unsigned long val) -{ - return val; -} -EXPORT_SYMBOL_GPL(probe_irq_mask); diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c index 3388b2b2a07d..adbbe7f1cb0d 100644 --- a/arch/s390/kernel/kprobes.c +++ b/arch/s390/kernel/kprobes.c @@ -105,14 +105,31 @@ static int __kprobes get_fixup_type(kprobe_opcode_t *insn) fixup |= FIXUP_RETURN_REGISTER; break; case 0xeb: - if ((insn[2] & 0xff) == 0x44 || /* bxhg */ - (insn[2] & 0xff) == 0x45) /* bxleg */ + switch (insn[2] & 0xff) { + case 0x44: /* bxhg */ + case 0x45: /* bxleg */ fixup = FIXUP_BRANCH_NOT_TAKEN; + break; + } break; case 0xe3: /* bctg */ if ((insn[2] & 0xff) == 0x46) fixup = FIXUP_BRANCH_NOT_TAKEN; break; + case 0xec: + switch (insn[2] & 0xff) { + case 0xe5: /* clgrb */ + case 0xe6: /* cgrb */ + case 0xf6: /* crb */ + case 0xf7: /* clrb */ + case 0xfc: /* cgib */ + case 0xfd: /* cglib */ + case 0xfe: /* cib */ + case 0xff: /* clib */ + fixup = FIXUP_BRANCH_NOT_TAKEN; + break; + } + break; } return fixup; } diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c index 504175ebf8b0..c4c033819879 100644 --- a/arch/s390/kernel/nmi.c +++ b/arch/s390/kernel/nmi.c @@ -214,10 +214,7 @@ static int notrace s390_revalidate_registers(struct mci *mci) : "0", "cc"); #endif /* Revalidate clock comparator register */ - if (S390_lowcore.clock_comparator == -1) - set_clock_comparator(S390_lowcore.mcck_clock); - else - set_clock_comparator(S390_lowcore.clock_comparator); + set_clock_comparator(S390_lowcore.clock_comparator); /* Check if old PSW is valid */ if (!mci->wp) /* diff --git a/arch/s390/kernel/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c index 390d9ae57bb2..fb99c2057b85 100644 --- a/arch/s390/kernel/perf_cpum_cf.c +++ b/arch/s390/kernel/perf_cpum_cf.c @@ -639,8 +639,8 @@ static struct pmu cpumf_pmu = { .cancel_txn = cpumf_pmu_cancel_txn, }; -static int __cpuinit cpumf_pmu_notifier(struct notifier_block *self, - unsigned long action, void *hcpu) +static int cpumf_pmu_notifier(struct notifier_block *self, unsigned long action, + void *hcpu) { unsigned int cpu = (long) hcpu; int flags; diff --git a/arch/s390/kernel/perf_event.c b/arch/s390/kernel/perf_event.c index a6fc037671b1..500aa1029bcb 100644 --- a/arch/s390/kernel/perf_event.c +++ b/arch/s390/kernel/perf_event.c @@ -52,12 +52,13 @@ static struct kvm_s390_sie_block *sie_block(struct pt_regs *regs) static bool is_in_guest(struct pt_regs *regs) { - unsigned long ip = instruction_pointer(regs); - if (user_mode(regs)) return false; - - return ip == (unsigned long) &sie_exit; +#if defined(CONFIG_KVM) || defined(CONFIG_KVM_MODULE) + return instruction_pointer(regs) == (unsigned long) &sie_exit; +#else + return false; +#endif } static unsigned long guest_is_user_mode(struct pt_regs *regs) diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index 2bc3eddae34a..c5dbb335716d 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -71,6 +71,7 @@ void arch_cpu_idle(void) } /* Halt the cpu and keep track of cpu time accounting. */ vtime_stop_cpu(); + local_irq_enable(); } void arch_cpu_idle_exit(void) diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c index 753c41d0ffd3..24612029f450 100644 --- a/arch/s390/kernel/processor.c +++ b/arch/s390/kernel/processor.c @@ -21,7 +21,7 @@ static DEFINE_PER_CPU(struct cpuid, cpu_id); /* * cpu_init - initializes state that is per-CPU. */ -void __cpuinit cpu_init(void) +void cpu_init(void) { struct s390_idle_data *idle = &__get_cpu_var(s390_idle); struct cpuid *id = &__get_cpu_var(cpu_id); diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c index a314c57f4e94..9556905bd3ce 100644 --- a/arch/s390/kernel/ptrace.c +++ b/arch/s390/kernel/ptrace.c @@ -47,7 +47,7 @@ enum s390_regset { REGSET_GENERAL_EXTENDED, }; -void update_per_regs(struct task_struct *task) +void update_cr_regs(struct task_struct *task) { struct pt_regs *regs = task_pt_regs(task); struct thread_struct *thread = &task->thread; @@ -56,17 +56,25 @@ void update_per_regs(struct task_struct *task) #ifdef CONFIG_64BIT /* Take care of the enable/disable of transactional execution. */ if (MACHINE_HAS_TE) { - unsigned long cr0, cr0_new; + unsigned long cr[3], cr_new[3]; - __ctl_store(cr0, 0, 0); - /* set or clear transaction execution bits 8 and 9. */ + __ctl_store(cr, 0, 2); + cr_new[1] = cr[1]; + /* Set or clear transaction execution TXC bit 8. */ if (task->thread.per_flags & PER_FLAG_NO_TE) - cr0_new = cr0 & ~(3UL << 54); + cr_new[0] = cr[0] & ~(1UL << 55); else - cr0_new = cr0 | (3UL << 54); - /* Only load control register 0 if necessary. */ - if (cr0 != cr0_new) - __ctl_load(cr0_new, 0, 0); + cr_new[0] = cr[0] | (1UL << 55); + /* Set or clear transaction execution TDC bits 62 and 63. */ + cr_new[2] = cr[2] & ~3UL; + if (task->thread.per_flags & PER_FLAG_TE_ABORT_RAND) { + if (task->thread.per_flags & PER_FLAG_TE_ABORT_RAND_TEND) + cr_new[2] |= 1UL; + else + cr_new[2] |= 2UL; + } + if (memcmp(&cr_new, &cr, sizeof(cr))) + __ctl_load(cr_new, 0, 2); } #endif /* Copy user specified PER registers */ @@ -100,14 +108,14 @@ void user_enable_single_step(struct task_struct *task) { set_tsk_thread_flag(task, TIF_SINGLE_STEP); if (task == current) - update_per_regs(task); + update_cr_regs(task); } void user_disable_single_step(struct task_struct *task) { clear_tsk_thread_flag(task, TIF_SINGLE_STEP); if (task == current) - update_per_regs(task); + update_cr_regs(task); } /* @@ -447,6 +455,26 @@ long arch_ptrace(struct task_struct *child, long request, if (!MACHINE_HAS_TE) return -EIO; child->thread.per_flags |= PER_FLAG_NO_TE; + child->thread.per_flags &= ~PER_FLAG_TE_ABORT_RAND; + return 0; + case PTRACE_TE_ABORT_RAND: + if (!MACHINE_HAS_TE || (child->thread.per_flags & PER_FLAG_NO_TE)) + return -EIO; + switch (data) { + case 0UL: + child->thread.per_flags &= ~PER_FLAG_TE_ABORT_RAND; + break; + case 1UL: + child->thread.per_flags |= PER_FLAG_TE_ABORT_RAND; + child->thread.per_flags |= PER_FLAG_TE_ABORT_RAND_TEND; + break; + case 2UL: + child->thread.per_flags |= PER_FLAG_TE_ABORT_RAND; + child->thread.per_flags &= ~PER_FLAG_TE_ABORT_RAND_TEND; + break; + default: + return -EINVAL; + } return 0; default: /* Removing high order bit from addr (only for 31 bit). */ @@ -1271,7 +1299,7 @@ int regs_query_register_offset(const char *name) if (!name || *name != 'r') return -EINVAL; - if (strict_strtoul(name + 1, 10, &offset)) + if (kstrtoul(name + 1, 10, &offset)) return -EINVAL; if (offset >= NUM_GPRS) return -EINVAL; diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 497451ec5e26..aeed8a61fa0d 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -994,6 +994,7 @@ static void __init setup_hwcaps(void) strcpy(elf_platform, "z196"); break; case 0x2827: + case 0x2828: strcpy(elf_platform, "zEC12"); break; } diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c index 15a016c10563..d386c4e9d2e5 100644 --- a/arch/s390/kernel/smp.c +++ b/arch/s390/kernel/smp.c @@ -165,7 +165,7 @@ static void pcpu_ec_call(struct pcpu *pcpu, int ec_bit) pcpu_sigp_retry(pcpu, order, 0); } -static int __cpuinit pcpu_alloc_lowcore(struct pcpu *pcpu, int cpu) +static int pcpu_alloc_lowcore(struct pcpu *pcpu, int cpu) { struct _lowcore *lc; @@ -616,10 +616,9 @@ static struct sclp_cpu_info *smp_get_cpu_info(void) return info; } -static int __cpuinit smp_add_present_cpu(int cpu); +static int smp_add_present_cpu(int cpu); -static int __cpuinit __smp_rescan_cpus(struct sclp_cpu_info *info, - int sysfs_add) +static int __smp_rescan_cpus(struct sclp_cpu_info *info, int sysfs_add) { struct pcpu *pcpu; cpumask_t avail; @@ -685,7 +684,7 @@ static void __init smp_detect_cpus(void) /* * Activate a secondary processor. */ -static void __cpuinit smp_start_secondary(void *cpuvoid) +static void smp_start_secondary(void *cpuvoid) { S390_lowcore.last_update_clock = get_tod_clock(); S390_lowcore.restart_stack = (unsigned long) restart_stack; @@ -708,7 +707,7 @@ static void __cpuinit smp_start_secondary(void *cpuvoid) } /* Upping and downing of CPUs */ -int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle) +int __cpu_up(unsigned int cpu, struct task_struct *tidle) { struct pcpu *pcpu; int rc; @@ -964,8 +963,8 @@ static struct attribute_group cpu_online_attr_group = { .attrs = cpu_online_attrs, }; -static int __cpuinit smp_cpu_notify(struct notifier_block *self, - unsigned long action, void *hcpu) +static int smp_cpu_notify(struct notifier_block *self, unsigned long action, + void *hcpu) { unsigned int cpu = (unsigned int)(long)hcpu; struct cpu *c = &pcpu_devices[cpu].cpu; @@ -983,7 +982,7 @@ static int __cpuinit smp_cpu_notify(struct notifier_block *self, return notifier_from_errno(err); } -static int __cpuinit smp_add_present_cpu(int cpu) +static int smp_add_present_cpu(int cpu) { struct cpu *c = &pcpu_devices[cpu].cpu; struct device *s = &c->dev; diff --git a/arch/s390/kernel/suspend.c b/arch/s390/kernel/suspend.c index c479d2f9605b..737bff38e3ee 100644 --- a/arch/s390/kernel/suspend.c +++ b/arch/s390/kernel/suspend.c @@ -10,6 +10,9 @@ #include <linux/suspend.h> #include <linux/mm.h> #include <asm/ctl_reg.h> +#include <asm/ipl.h> +#include <asm/cio.h> +#include <asm/pci.h> /* * References to section boundaries @@ -211,3 +214,11 @@ void restore_processor_state(void) __ctl_set_bit(0,28); local_mcck_enable(); } + +/* Called at the end of swsusp_arch_resume */ +void s390_early_resume(void) +{ + lgr_info_log(); + channel_subsystem_reinit(); + zpci_rescan(); +} diff --git a/arch/s390/kernel/swsusp_asm64.S b/arch/s390/kernel/swsusp_asm64.S index c487be4cfc81..6b09fdffbd2f 100644 --- a/arch/s390/kernel/swsusp_asm64.S +++ b/arch/s390/kernel/swsusp_asm64.S @@ -281,11 +281,8 @@ restore_registers: lghi %r2,0 brasl %r14,arch_set_page_states - /* Log potential guest relocation */ - brasl %r14,lgr_info_log - - /* Reinitialize the channel subsystem */ - brasl %r14,channel_subsystem_reinit + /* Call arch specific early resume code */ + brasl %r14,s390_early_resume /* Return 0 */ lmg %r6,%r15,STACK_FRAME_OVERHEAD + __SF_GPRS(%r15) diff --git a/arch/s390/kernel/sysinfo.c b/arch/s390/kernel/sysinfo.c index 62f89d98e880..811f542b8ed4 100644 --- a/arch/s390/kernel/sysinfo.c +++ b/arch/s390/kernel/sysinfo.c @@ -418,7 +418,7 @@ void s390_adjust_jiffies(void) /* * calibrate the delay loop */ -void __cpuinit calibrate_delay(void) +void calibrate_delay(void) { s390_adjust_jiffies(); /* Print the good old Bogomips line .. */ diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c index 876546b9cfa1..064c3082ab33 100644 --- a/arch/s390/kernel/time.c +++ b/arch/s390/kernel/time.c @@ -92,7 +92,6 @@ void clock_comparator_work(void) struct clock_event_device *cd; S390_lowcore.clock_comparator = -1ULL; - set_clock_comparator(S390_lowcore.clock_comparator); cd = &__get_cpu_var(comparators); cd->event_handler(cd); } diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c index d7776281cb60..05d75c413137 100644 --- a/arch/s390/kernel/vdso.c +++ b/arch/s390/kernel/vdso.c @@ -63,7 +63,7 @@ static int __init vdso_setup(char *s) else if (strncmp(s, "off", 4) == 0) vdso_enabled = 0; else { - rc = strict_strtoul(s, 0, &val); + rc = kstrtoul(s, 0, &val); vdso_enabled = rc ? 0 : !!val; } return !rc; @@ -113,11 +113,11 @@ int vdso_alloc_per_cpu(struct _lowcore *lowcore) clear_table((unsigned long *) segment_table, _SEGMENT_ENTRY_EMPTY, PAGE_SIZE << SEGMENT_ORDER); - clear_table((unsigned long *) page_table, _PAGE_TYPE_EMPTY, + clear_table((unsigned long *) page_table, _PAGE_INVALID, 256*sizeof(unsigned long)); *(unsigned long *) segment_table = _SEGMENT_ENTRY + page_table; - *(unsigned long *) page_table = _PAGE_RO + page_frame; + *(unsigned long *) page_table = _PAGE_PROTECT + page_frame; psal = (u32 *) (page_table + 256*sizeof(unsigned long)); aste = psal + 32; diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c index 3fb09359eda6..abcfab55f99b 100644 --- a/arch/s390/kernel/vtime.c +++ b/arch/s390/kernel/vtime.c @@ -19,6 +19,7 @@ #include <asm/irq_regs.h> #include <asm/cputime.h> #include <asm/vtimer.h> +#include <asm/vtime.h> #include <asm/irq.h> #include "entry.h" @@ -371,14 +372,14 @@ EXPORT_SYMBOL(del_virt_timer); /* * Start the virtual CPU timer on the current CPU. */ -void __cpuinit init_cpu_vtimer(void) +void init_cpu_vtimer(void) { /* set initial cpu timer */ set_vtimer(VTIMER_MAX_SLICE); } -static int __cpuinit s390_nohz_notify(struct notifier_block *self, - unsigned long action, void *hcpu) +static int s390_nohz_notify(struct notifier_block *self, unsigned long action, + void *hcpu) { struct s390_idle_data *idle; long cpu = (long) hcpu; |