diff options
Diffstat (limited to 'arch/arm64/kernel')
| -rw-r--r-- | arch/arm64/kernel/hibernate.c | 5 | ||||
| -rw-r--r-- | arch/arm64/kernel/machine_kexec.c | 4 | ||||
| -rw-r--r-- | arch/arm64/kernel/smp.c | 9 | ||||
| -rw-r--r-- | arch/arm64/kernel/suspend.c | 7 | ||||
| -rw-r--r-- | arch/arm64/kernel/traps.c | 3 |
5 files changed, 14 insertions, 14 deletions
diff --git a/arch/arm64/kernel/hibernate.c b/arch/arm64/kernel/hibernate.c index 095d3c170f5d..3009b8b80f08 100644 --- a/arch/arm64/kernel/hibernate.c +++ b/arch/arm64/kernel/hibernate.c @@ -27,6 +27,7 @@ #include <asm/barrier.h> #include <asm/cacheflush.h> #include <asm/cputype.h> +#include <asm/daifflags.h> #include <asm/irqflags.h> #include <asm/kexec.h> #include <asm/memory.h> @@ -285,7 +286,7 @@ int swsusp_arch_suspend(void) return -EBUSY; } - local_dbg_save(flags); + flags = local_daif_save(); if (__cpu_suspend_enter(&state)) { /* make the crash dump kernel image visible/saveable */ @@ -315,7 +316,7 @@ int swsusp_arch_suspend(void) __cpu_suspend_exit(); } - local_dbg_restore(flags); + local_daif_restore(flags); return ret; } diff --git a/arch/arm64/kernel/machine_kexec.c b/arch/arm64/kernel/machine_kexec.c index 11121f608eb5..f76ea92dff91 100644 --- a/arch/arm64/kernel/machine_kexec.c +++ b/arch/arm64/kernel/machine_kexec.c @@ -18,6 +18,7 @@ #include <asm/cacheflush.h> #include <asm/cpu_ops.h> +#include <asm/daifflags.h> #include <asm/memory.h> #include <asm/mmu.h> #include <asm/mmu_context.h> @@ -195,8 +196,7 @@ void machine_kexec(struct kimage *kimage) pr_info("Bye!\n"); - /* Disable all DAIF exceptions. */ - asm volatile ("msr daifset, #0xf" : : : "memory"); + local_daif_mask(); /* * cpu_soft_restart will shutdown the MMU, disable data caches, then diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index 824561ef6b8a..c94f4a6515c4 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -47,6 +47,7 @@ #include <asm/cpu.h> #include <asm/cputype.h> #include <asm/cpu_ops.h> +#include <asm/daifflags.h> #include <asm/mmu_context.h> #include <asm/numa.h> #include <asm/pgtable.h> @@ -370,10 +371,6 @@ void __cpu_die(unsigned int cpu) /* * Called from the idle thread for the CPU which has been shutdown. * - * Note that we disable IRQs here, but do not re-enable them - * before returning to the caller. This is also the behaviour - * of the other hotplug-cpu capable cores, so presumably coming - * out of idle fixes this. */ void cpu_die(void) { @@ -381,7 +378,7 @@ void cpu_die(void) idle_task_exit(); - local_irq_disable(); + local_daif_mask(); /* Tell __cpu_die() that this CPU is now safe to dispose of */ (void)cpu_report_death(); @@ -839,7 +836,7 @@ static void ipi_cpu_stop(unsigned int cpu) { set_cpu_online(cpu, false); - local_irq_disable(); + local_daif_mask(); while (1) cpu_relax(); diff --git a/arch/arm64/kernel/suspend.c b/arch/arm64/kernel/suspend.c index 5794326975f8..9079dfe885fa 100644 --- a/arch/arm64/kernel/suspend.c +++ b/arch/arm64/kernel/suspend.c @@ -4,6 +4,7 @@ #include <asm/alternative.h> #include <asm/cacheflush.h> #include <asm/cpufeature.h> +#include <asm/daifflags.h> #include <asm/debug-monitors.h> #include <asm/exec.h> #include <asm/pgtable.h> @@ -56,7 +57,7 @@ void notrace __cpu_suspend_exit(void) /* * Restore HW breakpoint registers to sane values * before debug exceptions are possibly reenabled - * through local_dbg_restore. + * by cpu_suspend()s local_daif_restore() call. */ if (hw_breakpoint_restore) hw_breakpoint_restore(cpu); @@ -80,7 +81,7 @@ int cpu_suspend(unsigned long arg, int (*fn)(unsigned long)) * updates to mdscr register (saved and restored along with * general purpose registers) from kernel debuggers. */ - local_dbg_save(flags); + flags = local_daif_save(); /* * Function graph tracer state gets incosistent when the kernel @@ -113,7 +114,7 @@ int cpu_suspend(unsigned long arg, int (*fn)(unsigned long)) * restored, so from this point onwards, debugging is fully * renabled if it was enabled when core started shutdown. */ - local_dbg_restore(flags); + local_daif_restore(flags); return ret; } diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c index afb6b19677dc..fa52aefaf7f2 100644 --- a/arch/arm64/kernel/traps.c +++ b/arch/arm64/kernel/traps.c @@ -38,6 +38,7 @@ #include <asm/atomic.h> #include <asm/bug.h> +#include <asm/daifflags.h> #include <asm/debug-monitors.h> #include <asm/esr.h> #include <asm/insn.h> @@ -594,7 +595,7 @@ asmlinkage void bad_mode(struct pt_regs *regs, int reason, unsigned int esr) esr_get_class_string(esr)); die("Oops - bad mode", regs, 0); - local_irq_disable(); + local_daif_mask(); panic("bad mode"); } |