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| author | Borislav Petkov (AMD) <bp@alien8.de> | 2025-12-30 14:07:31 +0300 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2026-01-09 13:36:52 +0300 |
| commit | 736a2dcfdae72483a36793bc92182f33bd61d30e (patch) | |
| tree | 1c5ef00b35b8e21d87a44769db89a519603fca77 /tools | |
| parent | c957072d44a735ebbe8385fc3511a4f5e6ccea93 (diff) | |
| download | linux-736a2dcfdae72483a36793bc92182f33bd61d30e.tar.xz | |
x86/CPU/AMD: Simplify the spectral chicken fix
msr_set_bit() takes a bit number to set but MSR_ZEN2_SPECTRAL_CHICKEN_BIT
is a bit mask. The usual pattern that code uses is a _BIT-named type
macro instead of a mask.
So convert it to a bit number to reflect that.
Also, msr_set_bit() already does the reading and checking whether the
bit needs to be set so use that instead of a local variable.
Fixup tabbing while at it.
No functional changes.
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Nikolay Borisov <nik.borisov@suse.com>
Link: https://patch.msgid.link/20251230110731.28108-1-bp@kernel.org
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/arch/x86/include/asm/msr-index.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/arch/x86/include/asm/msr-index.h b/tools/arch/x86/include/asm/msr-index.h index 9e1720d73244..d4137a302793 100644 --- a/tools/arch/x86/include/asm/msr-index.h +++ b/tools/arch/x86/include/asm/msr-index.h @@ -770,8 +770,8 @@ #define MSR_F19H_UMC_PERF_CTR 0xc0010801 /* Zen 2 */ -#define MSR_ZEN2_SPECTRAL_CHICKEN 0xc00110e3 -#define MSR_ZEN2_SPECTRAL_CHICKEN_BIT BIT_ULL(1) +#define MSR_ZEN2_SPECTRAL_CHICKEN 0xc00110e3 +#define MSR_ZEN2_SPECTRAL_CHICKEN_BIT 1 /* Fam 17h MSRs */ #define MSR_F17H_IRPERF 0xc00000e9 |