diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2019-10-15 21:17:49 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-12-08 14:37:32 +0100 |
| commit | 7ef858dad9fa6cabfe3b78997c3114cd641de6e3 (patch) | |
| tree | f108c3a0fea5e89baa0d10ceedf82547ff825c00 /arch/arm64/kernel | |
| parent | e7289c6de81c8e8991148e46c9ab43e2d23940f3 (diff) | |
sched/rt, arm64: Use CONFIG_PREEMPTION
CONFIG_PREEMPTION is selected by CONFIG_PREEMPT and by CONFIG_PREEMPT_RT.
Both PREEMPT and PREEMPT_RT require the same functionality which today
depends on CONFIG_PREEMPT.
Switch the Kconfig dependency, entry code and preemption handling over
to use CONFIG_PREEMPTION. Add PREEMPT_RT output in show_stack().
[bigeasy: +traps.c, Kconfig]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20191015191821.11479-3-bigeasy@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/arm64/kernel')
| -rw-r--r-- | arch/arm64/kernel/entry.S | 2 | ||||
| -rw-r--r-- | arch/arm64/kernel/traps.c | 3 |
2 files changed, 4 insertions, 1 deletions
diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S index 583f71abbe98..6fcb62df2b71 100644 --- a/arch/arm64/kernel/entry.S +++ b/arch/arm64/kernel/entry.S @@ -604,7 +604,7 @@ el1_irq: irq_handler -#ifdef CONFIG_PREEMPT +#ifdef CONFIG_PREEMPTION ldr x24, [tsk, #TSK_TI_PREEMPT] // get preempt count alternative_if ARM64_HAS_IRQ_PRIO_MASKING /* diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c index 73caf35c2262..cf402be5c573 100644 --- a/arch/arm64/kernel/traps.c +++ b/arch/arm64/kernel/traps.c @@ -144,9 +144,12 @@ void show_stack(struct task_struct *tsk, unsigned long *sp) #ifdef CONFIG_PREEMPT #define S_PREEMPT " PREEMPT" +#elif defined(CONFIG_PREEMPT_RT) +#define S_PREEMPT " PREEMPT_RT" #else #define S_PREEMPT "" #endif + #define S_SMP " SMP" static int __die(const char *str, int err, struct pt_regs *regs) |