diff options
| author | Brian Gerst <brgerst@gmail.com> | 2025-03-03 11:52:42 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2025-03-04 20:30:33 +0100 |
| commit | c6a0918072eaa97df268c00c05822ea982a321b6 (patch) | |
| tree | 1d8b88a8cf6acb60e421a6cf2d11e05902fc7be8 /arch/x86/include/asm/processor.h | |
| parent | c8f1ac2bd7771a3bc536f897c142ca219cac13e1 (diff) | |
x86/irq: Move irq stacks to percpu hot section
No functional change.
Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Uros Bizjak <ubizjak@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20250303165246.2175811-8-brgerst@gmail.com
Diffstat (limited to 'arch/x86/include/asm/processor.h')
| -rw-r--r-- | arch/x86/include/asm/processor.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index c241dbc1562c..6bb6af0b5430 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -415,6 +415,13 @@ struct irq_stack { char stack[IRQ_STACK_SIZE]; } __aligned(IRQ_STACK_SIZE); +DECLARE_PER_CPU_CACHE_HOT(struct irq_stack *, hardirq_stack_ptr); +#ifdef CONFIG_X86_64 +DECLARE_PER_CPU_CACHE_HOT(bool, hardirq_stack_inuse); +#else +DECLARE_PER_CPU_CACHE_HOT(struct irq_stack *, softirq_stack_ptr); +#endif + #ifdef CONFIG_X86_64 static inline unsigned long cpu_kernelmode_gs_base(int cpu) { |