summaryrefslogtreecommitdiff
path: root/arch/x86/kernel/cpu/amd.c
diff options
context:
space:
mode:
authorMarcel Ziswiler <marcel.ziswiler@toradex.com>2019-03-28 16:27:49 +0100
committerMarcel Ziswiler <marcel.ziswiler@toradex.com>2019-03-28 16:27:49 +0100
commitd899927728beca8357a5b4120b690cb3c1d80844 (patch)
treeccb170439cc8638d71f6120ae08a6faded46db98 /arch/x86/kernel/cpu/amd.c
parent8d60367808c45e33c0a9127621f4e5fc34914f6b (diff)
parent0a8ab17689e628c84a666195bfc6ab85d11cf057 (diff)
Diffstat (limited to 'arch/x86/kernel/cpu/amd.c')
-rw-r--r--arch/x86/kernel/cpu/amd.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 4c2648b96c9a..be6d0543e626 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -765,11 +765,9 @@ static void init_amd_bd(struct cpuinfo_x86 *c)
static void init_amd_zn(struct cpuinfo_x86 *c)
{
set_cpu_cap(c, X86_FEATURE_ZEN);
- /*
- * Fix erratum 1076: CPB feature bit not being set in CPUID. It affects
- * all up to and including B1.
- */
- if (c->x86_model <= 1 && c->x86_stepping <= 1)
+
+ /* Fix erratum 1076: CPB feature bit not being set in CPUID. */
+ if (!cpu_has(c, X86_FEATURE_CPB))
set_cpu_cap(c, X86_FEATURE_CPB);
}