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-rw-r--r--arch/arm64/include/asm/arch_timer.h2
-rw-r--r--arch/arm64/include/asm/debug-monitors.h7
-rw-r--r--arch/arm64/include/asm/system_misc.h3
-rw-r--r--arch/arm64/kernel/debug-monitors.c6
-rw-r--r--arch/arm64/kernel/hw_breakpoint.c4
-rw-r--r--arch/arm64/kernel/process.c2
-rw-r--r--arch/arm64/kernel/smp.c23
-rw-r--r--arch/arm64/mm/fault.c46
8 files changed, 41 insertions, 52 deletions
diff --git a/arch/arm64/include/asm/arch_timer.h b/arch/arm64/include/asm/arch_timer.h
index d56ed11ba9a3..98abd476992d 100644
--- a/arch/arm64/include/asm/arch_timer.h
+++ b/arch/arm64/include/asm/arch_timer.h
@@ -97,7 +97,7 @@ static inline u32 arch_timer_get_cntfrq(void)
return val;
}
-static inline void __cpuinit arch_counter_set_user_access(void)
+static inline void arch_counter_set_user_access(void)
{
u32 cntkctl;
diff --git a/arch/arm64/include/asm/debug-monitors.h b/arch/arm64/include/asm/debug-monitors.h
index ef8235c68c09..a2232d07be9d 100644
--- a/arch/arm64/include/asm/debug-monitors.h
+++ b/arch/arm64/include/asm/debug-monitors.h
@@ -83,14 +83,7 @@ static inline int reinstall_suspended_bps(struct pt_regs *regs)
}
#endif
-#ifdef CONFIG_COMPAT
int aarch32_break_handler(struct pt_regs *regs);
-#else
-static int aarch32_break_handler(struct pt_regs *regs)
-{
- return -EFAULT;
-}
-#endif
#endif /* __ASSEMBLY */
#endif /* __KERNEL__ */
diff --git a/arch/arm64/include/asm/system_misc.h b/arch/arm64/include/asm/system_misc.h
index a6e1750369ef..7a18fabbe0f6 100644
--- a/arch/arm64/include/asm/system_misc.h
+++ b/arch/arm64/include/asm/system_misc.h
@@ -23,6 +23,7 @@
#include <linux/compiler.h>
#include <linux/linkage.h>
#include <linux/irqflags.h>
+#include <linux/reboot.h>
struct pt_regs;
@@ -41,7 +42,7 @@ extern void show_pte(struct mm_struct *mm, unsigned long addr);
extern void __show_regs(struct pt_regs *);
void soft_restart(unsigned long);
-extern void (*arm_pm_restart)(char str, const char *cmd);
+extern void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
#define UDBG_UNDEFINED (1 << 0)
#define UDBG_SYSCALL (1 << 1)
diff --git a/arch/arm64/kernel/debug-monitors.c b/arch/arm64/kernel/debug-monitors.c
index 08018e3df580..cbfacf7fb438 100644
--- a/arch/arm64/kernel/debug-monitors.c
+++ b/arch/arm64/kernel/debug-monitors.c
@@ -141,7 +141,7 @@ static void clear_os_lock(void *unused)
isb();
}
-static int __cpuinit os_lock_notify(struct notifier_block *self,
+static int os_lock_notify(struct notifier_block *self,
unsigned long action, void *data)
{
int cpu = (unsigned long)data;
@@ -150,11 +150,11 @@ static int __cpuinit os_lock_notify(struct notifier_block *self,
return NOTIFY_OK;
}
-static struct notifier_block __cpuinitdata os_lock_nb = {
+static struct notifier_block os_lock_nb = {
.notifier_call = os_lock_notify,
};
-static int __cpuinit debug_monitors_init(void)
+static int debug_monitors_init(void)
{
/* Clear the OS lock. */
smp_call_function(clear_os_lock, NULL, 1);
diff --git a/arch/arm64/kernel/hw_breakpoint.c b/arch/arm64/kernel/hw_breakpoint.c
index 5ab825c59db9..329218ca9ffb 100644
--- a/arch/arm64/kernel/hw_breakpoint.c
+++ b/arch/arm64/kernel/hw_breakpoint.c
@@ -821,7 +821,7 @@ static void reset_ctrl_regs(void *unused)
}
}
-static int __cpuinit hw_breakpoint_reset_notify(struct notifier_block *self,
+static int hw_breakpoint_reset_notify(struct notifier_block *self,
unsigned long action,
void *hcpu)
{
@@ -831,7 +831,7 @@ static int __cpuinit hw_breakpoint_reset_notify(struct notifier_block *self,
return NOTIFY_OK;
}
-static struct notifier_block __cpuinitdata hw_breakpoint_reset_nb = {
+static struct notifier_block hw_breakpoint_reset_nb = {
.notifier_call = hw_breakpoint_reset_notify,
};
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 46f02c3b5015..1788bf6b471f 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -132,7 +132,7 @@ void machine_restart(char *cmd)
/* Now call the architecture specific reboot code. */
if (arm_pm_restart)
- arm_pm_restart('h', cmd);
+ arm_pm_restart(reboot_mode, cmd);
/*
* Whoops - the architecture was unable to reboot.
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 5d54e3717bf8..fee5cce83450 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -71,7 +71,7 @@ static DEFINE_RAW_SPINLOCK(boot_lock);
* in coherency or not. This is necessary for the hotplug code to work
* reliably.
*/
-static void __cpuinit write_pen_release(u64 val)
+static void write_pen_release(u64 val)
{
void *start = (void *)&secondary_holding_pen_release;
unsigned long size = sizeof(secondary_holding_pen_release);
@@ -84,7 +84,7 @@ static void __cpuinit write_pen_release(u64 val)
* Boot a secondary CPU, and assign it the specified idle task.
* This also gives us the initial stack to use for this CPU.
*/
-static int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
+static int boot_secondary(unsigned int cpu, struct task_struct *idle)
{
unsigned long timeout;
@@ -122,7 +122,7 @@ static int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
static DECLARE_COMPLETION(cpu_running);
-int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *idle)
+int __cpu_up(unsigned int cpu, struct task_struct *idle)
{
int ret;
@@ -162,7 +162,7 @@ int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *idle)
* This is the secondary CPU boot entry. We're using this CPUs
* idle thread stack, but a set of temporary page tables.
*/
-asmlinkage void __cpuinit secondary_start_kernel(void)
+asmlinkage void secondary_start_kernel(void)
{
struct mm_struct *mm = &init_mm;
unsigned int cpu = smp_processor_id();
@@ -200,13 +200,6 @@ asmlinkage void __cpuinit secondary_start_kernel(void)
raw_spin_unlock(&boot_lock);
/*
- * Enable local interrupts.
- */
- notify_cpu_starting(cpu);
- local_irq_enable();
- local_fiq_enable();
-
- /*
* OK, now it's safe to let the boot CPU continue. Wait for
* the CPU migration code to notice that the CPU is online
* before we continue.
@@ -215,6 +208,14 @@ asmlinkage void __cpuinit secondary_start_kernel(void)
complete(&cpu_running);
/*
+ * Enable GIC and timers.
+ */
+ notify_cpu_starting(cpu);
+
+ local_irq_enable();
+ local_fiq_enable();
+
+ /*
* OK, it's off to the idle thread for us
*/
cpu_startup_entry(CPUHP_ONLINE);
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 0ecac8980aae..6c8ba25bf6bb 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -152,25 +152,8 @@ void do_bad_area(unsigned long addr, unsigned int esr, struct pt_regs *regs)
#define ESR_CM (1 << 8)
#define ESR_LNX_EXEC (1 << 24)
-/*
- * Check that the permissions on the VMA allow for the fault which occurred.
- * If we encountered a write fault, we must have write permission, otherwise
- * we allow any permission.
- */
-static inline bool access_error(unsigned int esr, struct vm_area_struct *vma)
-{
- unsigned int mask = VM_READ | VM_WRITE | VM_EXEC;
-
- if (esr & ESR_WRITE)
- mask = VM_WRITE;
- if (esr & ESR_LNX_EXEC)
- mask = VM_EXEC;
-
- return vma->vm_flags & mask ? false : true;
-}
-
static int __do_page_fault(struct mm_struct *mm, unsigned long addr,
- unsigned int esr, unsigned int flags,
+ unsigned int mm_flags, unsigned long vm_flags,
struct task_struct *tsk)
{
struct vm_area_struct *vma;
@@ -188,12 +171,17 @@ static int __do_page_fault(struct mm_struct *mm, unsigned long addr,
* it.
*/
good_area:
- if (access_error(esr, vma)) {
+ /*
+ * Check that the permissions on the VMA allow for the fault which
+ * occurred. If we encountered a write or exec fault, we must have
+ * appropriate permissions, otherwise we allow any permission.
+ */
+ if (!(vma->vm_flags & vm_flags)) {
fault = VM_FAULT_BADACCESS;
goto out;
}
- return handle_mm_fault(mm, vma, addr & PAGE_MASK, flags);
+ return handle_mm_fault(mm, vma, addr & PAGE_MASK, mm_flags);
check_stack:
if (vma->vm_flags & VM_GROWSDOWN && !expand_stack(vma, addr))
@@ -208,9 +196,15 @@ static int __kprobes do_page_fault(unsigned long addr, unsigned int esr,
struct task_struct *tsk;
struct mm_struct *mm;
int fault, sig, code;
- bool write = (esr & ESR_WRITE) && !(esr & ESR_CM);
- unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE |
- (write ? FAULT_FLAG_WRITE : 0);
+ unsigned long vm_flags = VM_READ | VM_WRITE | VM_EXEC;
+ unsigned int mm_flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
+
+ if (esr & ESR_LNX_EXEC) {
+ vm_flags = VM_EXEC;
+ } else if ((esr & ESR_WRITE) && !(esr & ESR_CM)) {
+ vm_flags = VM_WRITE;
+ mm_flags |= FAULT_FLAG_WRITE;
+ }
tsk = current;
mm = tsk->mm;
@@ -248,7 +242,7 @@ retry:
#endif
}
- fault = __do_page_fault(mm, addr, esr, flags, tsk);
+ fault = __do_page_fault(mm, addr, mm_flags, vm_flags, tsk);
/*
* If we need to retry but a fatal signal is pending, handle the
@@ -265,7 +259,7 @@ retry:
*/
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, addr);
- if (flags & FAULT_FLAG_ALLOW_RETRY) {
+ if (mm_flags & FAULT_FLAG_ALLOW_RETRY) {
if (fault & VM_FAULT_MAJOR) {
tsk->maj_flt++;
perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, regs,
@@ -280,7 +274,7 @@ retry:
* Clear FAULT_FLAG_ALLOW_RETRY to avoid any risk of
* starvation.
*/
- flags &= ~FAULT_FLAG_ALLOW_RETRY;
+ mm_flags &= ~FAULT_FLAG_ALLOW_RETRY;
goto retry;
}
}
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