All of lore.kernel.org
 help / color / mirror / Atom feed
From: Borislav Petkov <bp@alien8.de>
To: Ingo Molnar <mingo@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH 5/8] x86/mce/AMD: Reduce number of blocks scanned per bank
Date: Mon, 25 Jan 2016 20:41:50 +0100	[thread overview]
Message-ID: <1453750913-4781-6-git-send-email-bp@alien8.de> (raw)
In-Reply-To: <1453750913-4781-1-git-send-email-bp@alien8.de>

From: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>

>From Fam17h onwards, the number of extended MCx_MISC register blocks is
reduced to 4. It is an architectural change from what we had on earlier
processors.

Although theoritically the total number of extended MCx_MISC registers
was 8 in earlier processor families, in practice we only had to use the
extra registers for MC4. And only 2 of those were used. So this change
does not affect older processors. Tested on Fam10h and Fam15h systems.

Signed-off-by: Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: x86-ml <x86@kernel.org>
Link: http://lkml.kernel.org/r/1452901836-27632-4-git-send-email-Aravind.Gopalakrishnan@amd.com
Signed-off-by: Borislav Petkov <bp@suse.de>
---
 arch/x86/kernel/cpu/mcheck/mce_amd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c
index 3068ce25dfa1..5982227990c9 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c
@@ -28,7 +28,7 @@
 #include <asm/msr.h>
 #include <asm/trace/irq_vectors.h>
 
-#define NR_BLOCKS         9
+#define NR_BLOCKS         5
 #define THRESHOLD_MAX     0xFFF
 #define INT_TYPE_APIC     0x00020000
 #define MASK_VALID_HI     0x80000000
-- 
2.3.5

  parent reply	other threads:[~2016-01-25 19:43 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-25 19:41 [PATCH 0/8] tip-queue 2016-01-25 Borislav Petkov
2016-01-25 19:41 ` [PATCH 1/8] x86/traps.c: Refactor preemption and interrupt flag handling Borislav Petkov
2016-02-01 11:39   ` [tip:x86/asm] x86/entry/traps: " tip-bot for Alexander Kuleshov
2016-01-25 19:41 ` [PATCH 2/8] x86/cpufeature: Use enum cpuid_leafs instead of magic numbers Borislav Petkov
2016-02-01 11:40   ` [tip:x86/cpu] " tip-bot for Huaitong Han
2016-01-25 19:41 ` [PATCH 3/8] x86/mce: Fix order of AMD MCE init function call Borislav Petkov
2016-02-01 11:40   ` [tip:ras/core] " tip-bot for Aravind Gopalakrishnan
2016-01-25 19:41 ` [PATCH 4/8] x86/mce/AMD: Do not perform shared bank check for future processors Borislav Petkov
2016-02-01 11:40   ` [tip:ras/core] " tip-bot for Aravind Gopalakrishnan
2016-01-25 19:41 ` Borislav Petkov [this message]
2016-02-01 11:41   ` [tip:ras/core] x86/mce/AMD: Reduce number of blocks scanned per bank tip-bot for Aravind Gopalakrishnan
2016-01-25 19:41 ` [PATCH 6/8] x86/mce/AMD: Fix LVT offset configuration for thresholding Borislav Petkov
2016-02-01 11:41   ` [tip:ras/core] " tip-bot for Aravind Gopalakrishnan
2016-01-25 19:41 ` [PATCH 7/8] x86/mce/AMD: Carve out threshold block preparation Borislav Petkov
2016-02-01 11:41   ` [tip:ras/core] " tip-bot for Borislav Petkov
2016-01-25 19:41 ` [PATCH 8/8] x86/mce/AMD: Set MCAX Enable bit Borislav Petkov
2016-02-01 11:42   ` [tip:ras/core] " tip-bot for Aravind Gopalakrishnan

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1453750913-4781-6-git-send-email-bp@alien8.de \
    --to=bp@alien8.de \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.