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-rw-r--r--arch/s390/kernel/cache.c15
-rw-r--r--arch/s390/kernel/crash_dump.c51
-rw-r--r--arch/s390/kernel/perf_cpum_cf.c4
-rw-r--r--arch/s390/kernel/perf_event.c9
-rw-r--r--arch/s390/kernel/processor.c2
-rw-r--r--arch/s390/kernel/ptrace.c50
-rw-r--r--arch/s390/kernel/setup.c1
-rw-r--r--arch/s390/kernel/smp.c17
-rw-r--r--arch/s390/kernel/sysinfo.c2
-rw-r--r--arch/s390/kernel/vtime.c6
10 files changed, 114 insertions, 43 deletions
diff --git a/arch/s390/kernel/cache.c b/arch/s390/kernel/cache.c
index 64b24650e4f..dd62071624b 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 f703d91bf72..d8f35565717 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/perf_cpum_cf.c b/arch/s390/kernel/perf_cpum_cf.c
index 390d9ae57bb..fb99c2057b8 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 a6fc037671b..500aa1029bc 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/processor.c b/arch/s390/kernel/processor.c
index 753c41d0ffd..24612029f45 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 a314c57f4e9..e9fadb04e3c 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/PIFO bits 8 and 9. */
if (task->thread.per_flags & PER_FLAG_NO_TE)
- cr0_new = cr0 & ~(3UL << 54);
+ cr_new[0] = cr[0] & ~(3UL << 54);
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] | (3UL << 54);
+ /* 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). */
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 497451ec5e2..aeed8a61fa0 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 15a016c1056..d386c4e9d2e 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/sysinfo.c b/arch/s390/kernel/sysinfo.c
index 62f89d98e88..811f542b8ed 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/vtime.c b/arch/s390/kernel/vtime.c
index 3fb09359eda..9b9c1b78ec6 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -371,14 +371,14 @@ 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;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-22 17:43:19 +0000