diff options
Diffstat (limited to 'arch/arm64/kernel/process.c')
| -rw-r--r-- | arch/arm64/kernel/process.c | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index 3925ec3128ec..6b8b4b3e357a 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -18,7 +18,6 @@ #include <linux/sched/task.h> #include <linux/sched/task_stack.h> #include <linux/kernel.h> -#include <linux/lockdep.h> #include <linux/mman.h> #include <linux/mm.h> #include <linux/nospec.h> @@ -48,7 +47,6 @@ #include <asm/alternative.h> #include <asm/compat.h> #include <asm/cpufeature.h> -#include <asm/cpuidle.h> #include <asm/cacheflush.h> #include <asm/exec.h> #include <asm/fpsimd.h> @@ -74,40 +72,6 @@ EXPORT_SYMBOL_GPL(pm_power_off); void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd); -/* - * cpu_do_idle() - * - * Idle the processor (wait for interrupt). - * - * If the CPU supports priority masking we must do additional work to - * ensure that interrupts are not masked at the PMR (because the core will - * not wake up if we block the wake up signal in the interrupt controller). - */ -void noinstr cpu_do_idle(void) -{ - struct arm_cpuidle_irq_context context; - - arm_cpuidle_save_irq_context(&context); - - dsb(sy); - wfi(); - - arm_cpuidle_restore_irq_context(&context); -} - -/* - * This is our default idle handler. - */ -void noinstr arch_cpu_idle(void) -{ - /* - * This should do all the clock switching and wait for interrupt - * tricks - */ - cpu_do_idle(); - raw_local_irq_enable(); -} - #ifdef CONFIG_HOTPLUG_CPU void arch_cpu_idle_dead(void) { @@ -723,22 +687,6 @@ static int __init tagged_addr_init(void) core_initcall(tagged_addr_init); #endif /* CONFIG_ARM64_TAGGED_ADDR_ABI */ -asmlinkage void __sched arm64_preempt_schedule_irq(void) -{ - lockdep_assert_irqs_disabled(); - - /* - * Preempting a task from an IRQ means we leave copies of PSTATE - * on the stack. cpufeature's enable calls may modify PSTATE, but - * resuming one of these preempted tasks would undo those changes. - * - * Only allow a task to be preempted once cpufeatures have been - * enabled. - */ - if (system_capabilities_finalized()) - preempt_schedule_irq(); -} - #ifdef CONFIG_BINFMT_ELF int arch_elf_adjust_prot(int prot, const struct arch_elf_state *state, bool has_interp, bool is_interp) |