diff options
| author | Yazen Ghannam <Yazen.Ghannam@amd.com> | 2016-05-11 14:58:28 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-05-12 09:08:23 +0200 |
| commit | a348ed83d9efe8c11ecc85c15d7329825b97431e (patch) | |
| tree | cc38922d645934182f48c91214f073f881181635 /drivers/edac | |
| parent | 14cddfd5308b0880abd6e58b6660f5cc8e8020f9 (diff) | |
EDAC, mce_amd: Detect SMCA using X86_FEATURE_SMCA
Use X86_FEATURE_SMCA when detecting if SMCA is available instead of
directly using CPUID 0x80000007_EBX.
Signed-off-by: Yazen Ghannam <Yazen.Ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/1462971509-3856-7-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/edac')
| -rw-r--r-- | drivers/edac/mce_amd.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/edac/mce_amd.c b/drivers/edac/mce_amd.c index 49768c08ac07..9b6800a79c7f 100644 --- a/drivers/edac/mce_amd.c +++ b/drivers/edac/mce_amd.c @@ -1052,7 +1052,6 @@ int amd_decode_mce(struct notifier_block *nb, unsigned long val, void *data) struct mce *m = (struct mce *)data; struct cpuinfo_x86 *c = &cpu_data(m->extcpu); int ecc; - u32 ebx = cpuid_ebx(0x80000007); if (amd_filter_mce(m)) return NOTIFY_STOP; @@ -1075,7 +1074,7 @@ int amd_decode_mce(struct notifier_block *nb, unsigned long val, void *data) ((m->status & MCI_STATUS_DEFERRED) ? "Deferred" : "-"), ((m->status & MCI_STATUS_POISON) ? "Poison" : "-")); - if (!!(ebx & BIT(3))) { + if (boot_cpu_has(X86_FEATURE_SMCA)) { u32 low, high; u32 addr = MSR_AMD64_SMCA_MCx_CONFIG(m->bank); @@ -1094,7 +1093,7 @@ int amd_decode_mce(struct notifier_block *nb, unsigned long val, void *data) if (m->status & MCI_STATUS_ADDRV) pr_emerg(HW_ERR "MC%d Error Address: 0x%016llx\n", m->bank, m->addr); - if (!!(ebx & BIT(3))) { + if (boot_cpu_has(X86_FEATURE_SMCA)) { decode_smca_errors(m); goto err_code; } @@ -1149,7 +1148,6 @@ static struct notifier_block amd_mce_dec_nb = { static int __init mce_amd_init(void) { struct cpuinfo_x86 *c = &boot_cpu_data; - u32 ebx; if (c->x86_vendor != X86_VENDOR_AMD) return -ENODEV; @@ -1205,9 +1203,8 @@ static int __init mce_amd_init(void) break; case 0x17: - ebx = cpuid_ebx(0x80000007); xec_mask = 0x3f; - if (!(ebx & BIT(3))) { + if (!boot_cpu_has(X86_FEATURE_SMCA)) { printk(KERN_WARNING "Decoding supported only on Scalable MCA processors.\n"); goto err_out; } |