diff options
Diffstat (limited to 'arch/x86/kernel/cpu')
| -rw-r--r-- | arch/x86/kernel/cpu/amd.c | 6 |
1 files changed, 1 insertions, 5 deletions
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 13ad44bea494..219ae7e0fb5a 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -66,10 +66,6 @@ static const int amd_erratum_400[] = static const int amd_erratum_383[] = AMD_OSVW_ERRATUM(3, AMD_MODEL_RANGE(0x10, 0, 0, 0xff, 0xf)); -/* #1054: Instructions Retired Performance Counter May Be Inaccurate */ -static const int amd_erratum_1054[] = - AMD_LEGACY_ERRATUM(AMD_MODEL_RANGE(0x17, 0, 0, 0x2f, 0xf)); - static const int amd_erratum_1485[] = AMD_LEGACY_ERRATUM(AMD_MODEL_RANGE(0x19, 0x10, 0x0, 0x1f, 0xf), AMD_MODEL_RANGE(0x19, 0x60, 0x0, 0xaf, 0xf)); @@ -1201,7 +1197,7 @@ static void init_amd(struct cpuinfo_x86 *c) * Counter May Be Inaccurate". */ if (cpu_has(c, X86_FEATURE_IRPERF) && - !cpu_has_amd_erratum(c, amd_erratum_1054)) + (boot_cpu_has(X86_FEATURE_ZEN) && c->x86_model > 0x2f)) msr_set_bit(MSR_K7_HWCR, MSR_K7_HWCR_IRPERF_EN_BIT); check_null_seg_clears_base(c); |