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Message-Id: <20210608221012.223696-2-Smita.KoralahalliChannabasappa@amd.com>
Date: Tue, 8 Jun 2021 17:10:11 -0500
From: Smita Koralahalli <Smita.KoralahalliChannabasappa@....com>
To: x86@...nel.org, linux-kernel@...r.kernel.org,
linux-edac@...r.kernel.org
Cc: Borislav Petkov <bp@...en8.de>, Tony Luck <tony.luck@...el.com>,
Yazen Ghannam <yazen.ghannam@....com>,
Muralidhara M K <muralimk@....com>,
Akshay Gupta <Akshay.Gupta@....com>,
Youquan Song <youquan.song@...el.com>,
Zhen Lei <thunder.leizhen@...wei.com>,
Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...hat.com>,
"H . Peter Anvin" <hpa@...or.com>,
Smita Koralahalli <Smita.KoralahalliChannabasappa@....com>
Subject: [PATCH 1/2] x86/mce: Define function to extract ErrorAddr from MCA_ADDR
Move MCA_ADDR[ErrorAddr] extraction into a separate helper function. This
will be further refactored in the next patch.
Signed-off-by: Smita Koralahalli <Smita.KoralahalliChannabasappa@....com>
---
arch/x86/include/asm/mce.h | 2 ++
arch/x86/kernel/cpu/mce/amd.c | 14 +++++++++-----
arch/x86/kernel/cpu/mce/core.c | 7 ++-----
3 files changed, 13 insertions(+), 10 deletions(-)
diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index 0607ec4f5091..0a1c7224a582 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -357,6 +357,7 @@ extern int mce_threshold_remove_device(unsigned int cpu);
void mce_amd_feature_init(struct cpuinfo_x86 *c);
int umc_normaddr_to_sysaddr(u64 norm_addr, u16 nid, u8 umc, u64 *sys_addr);
+void smca_extract_err_addr(struct mce *m);
#else
@@ -366,6 +367,7 @@ static inline bool amd_mce_is_memory_error(struct mce *m) { return false; };
static inline void mce_amd_feature_init(struct cpuinfo_x86 *c) { }
static inline int
umc_normaddr_to_sysaddr(u64 norm_addr, u16 nid, u8 umc, u64 *sys_addr) { return -EINVAL; };
+static inline void smca_extract_err_addr(struct mce *m) { }
#endif
static inline void mce_hygon_feature_init(struct cpuinfo_x86 *c) { return mce_amd_feature_init(c); }
diff --git a/arch/x86/kernel/cpu/mce/amd.c b/arch/x86/kernel/cpu/mce/amd.c
index 08831acc1d03..f71435e53cdb 100644
--- a/arch/x86/kernel/cpu/mce/amd.c
+++ b/arch/x86/kernel/cpu/mce/amd.c
@@ -899,6 +899,13 @@ bool amd_mce_is_memory_error(struct mce *m)
return m->bank == 4 && xec == 0x8;
}
+void smca_extract_err_addr(struct mce *m)
+{
+ u8 lsb = (m->addr >> 56) & 0x3f;
+
+ m->addr &= GENMASK_ULL(55, lsb);
+}
+
static void __log_error(unsigned int bank, u64 status, u64 addr, u64 misc)
{
struct mce m;
@@ -917,11 +924,8 @@ static void __log_error(unsigned int bank, u64 status, u64 addr, u64 misc)
* Extract [55:<lsb>] where lsb is the least significant
* *valid* bit of the address bits.
*/
- if (mce_flags.smca) {
- u8 lsb = (m.addr >> 56) & 0x3f;
-
- m.addr &= GENMASK_ULL(55, lsb);
- }
+ if (mce_flags.smca)
+ smca_extract_err_addr(&m);
}
if (mce_flags.smca) {
diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c
index bf7fe87a7e88..2c09c1eec50a 100644
--- a/arch/x86/kernel/cpu/mce/core.c
+++ b/arch/x86/kernel/cpu/mce/core.c
@@ -703,11 +703,8 @@ static void mce_read_aux(struct mce *m, int i)
* Extract [55:<lsb>] where lsb is the least significant
* *valid* bit of the address bits.
*/
- if (mce_flags.smca) {
- u8 lsb = (m->addr >> 56) & 0x3f;
-
- m->addr &= GENMASK_ULL(55, lsb);
- }
+ if (mce_flags.smca)
+ smca_extract_err_addr(m);
}
if (mce_flags.smca) {
--
2.17.1
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