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| author | Ingo Molnar <mingo@kernel.org> | 2025-03-04 13:19:21 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2025-03-04 13:19:21 +0300 |
| commit | cfdaa618defc5ebe1ee6aa5bd40a7ccedffca6de (patch) | |
| tree | fba004535821850f0d10cc4deac3885545083f0c /arch/x86/kernel/acpi/cstate.c | |
| parent | ad546940b5991d3e141238cd80a6d1894b767184 (diff) | |
| parent | 4f2a0b765c9731d2fa94e209ee9ae0e96b280f17 (diff) | |
| download | linux-cfdaa618defc5ebe1ee6aa5bd40a7ccedffca6de.tar.xz | |
Merge branch 'x86/cpu' into x86/asm, to pick up dependent commits
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/acpi/cstate.c')
| -rw-r--r-- | arch/x86/kernel/acpi/cstate.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c index 5854f0b8f0f1..d25584255ab8 100644 --- a/arch/x86/kernel/acpi/cstate.c +++ b/arch/x86/kernel/acpi/cstate.c @@ -16,6 +16,7 @@ #include <asm/cpuid.h> #include <asm/mwait.h> #include <asm/special_insns.h> +#include <asm/smp.h> /* * Initialize bm_flags based on the CPU cache properties @@ -205,6 +206,16 @@ int acpi_processor_ffh_cstate_probe(unsigned int cpu, } EXPORT_SYMBOL_GPL(acpi_processor_ffh_cstate_probe); +void __noreturn acpi_processor_ffh_play_dead(struct acpi_processor_cx *cx) +{ + unsigned int cpu = smp_processor_id(); + struct cstate_entry *percpu_entry; + + percpu_entry = per_cpu_ptr(cpu_cstate_entry, cpu); + mwait_play_dead(percpu_entry->states[cx->index].eax); +} +EXPORT_SYMBOL_GPL(acpi_processor_ffh_play_dead); + void __cpuidle acpi_processor_ffh_cstate_enter(struct acpi_processor_cx *cx) { unsigned int cpu = smp_processor_id(); |