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| author | Dave Airlie <airlied@redhat.com> | 2020-07-24 00:28:09 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2020-07-24 00:48:05 +0200 |
| commit | 41206a073ceebc517245677a19f52ba6379b33a9 (patch) | |
| tree | 2fc35aac6abe32b99058ad55b0fc6e4d449d1056 /arch/x86/include/asm/cpumask.h | |
| parent | Merge tag 'amd-drm-next-5.9-2020-07-17' of git://people.freedesktop.org/~agd5... (diff) | |
| parent | Linux 5.8-rc6 (diff) | |
| download | linux-41206a073ceebc517245677a19f52ba6379b33a9.tar.xz linux-41206a073ceebc517245677a19f52ba6379b33a9.zip | |
Merge v5.8-rc6 into drm-next
I've got a silent conflict + two trees based on fixes to merge.
Fixes a silent merge with amdgpu
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'arch/x86/include/asm/cpumask.h')
| -rw-r--r-- | arch/x86/include/asm/cpumask.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/x86/include/asm/cpumask.h b/arch/x86/include/asm/cpumask.h index 6722ffcef2e6..3afa990d756b 100644 --- a/arch/x86/include/asm/cpumask.h +++ b/arch/x86/include/asm/cpumask.h @@ -11,5 +11,23 @@ extern cpumask_var_t cpu_sibling_setup_mask; extern void setup_cpu_local_masks(void); +/* + * NMI and MCE exceptions need cpu_is_offline() _really_ early, + * provide an arch_ special for them to avoid instrumentation. + */ +#if NR_CPUS > 1 +static __always_inline bool arch_cpu_online(int cpu) +{ + return arch_test_bit(cpu, cpumask_bits(cpu_online_mask)); +} +#else +static __always_inline bool arch_cpu_online(int cpu) +{ + return cpu == 0; +} +#endif + +#define arch_cpu_is_offline(cpu) unlikely(!arch_cpu_online(cpu)) + #endif /* __ASSEMBLY__ */ #endif /* _ASM_X86_CPUMASK_H */ |