All of lore.kernel.org
 help / color / mirror / Atom feed
From: tip-bot for Kan Liang <tipbot@zytor.com>
To: linux-tip-commits@vger.kernel.org
Cc: hpa@zytor.com, acme@redhat.com, jolsa@redhat.com,
	linux-kernel@vger.kernel.org, kan.liang@linux.intel.com,
	peterz@infradead.org, alexander.shishkin@linux.intel.com,
	eranian@google.com, torvalds@linux-foundation.org,
	vincent.weaver@maine.edu, mingo@kernel.org, tglx@linutronix.de
Subject: [tip:perf/core] perf/x86/intel/uncore: Fix PCI BDF address of M3UPI on SKX
Date: Tue, 2 Oct 2018 03:02:00 -0700	[thread overview]
Message-ID: <tip-9d92cfeaf5215158d26d2991be7f7ff865cb98f3@git.kernel.org> (raw)
In-Reply-To: <1537538826-55489-1-git-send-email-kan.liang@linux.intel.com>

Commit-ID:  9d92cfeaf5215158d26d2991be7f7ff865cb98f3
Gitweb:     https://git.kernel.org/tip/9d92cfeaf5215158d26d2991be7f7ff865cb98f3
Author:     Kan Liang <kan.liang@linux.intel.com>
AuthorDate: Fri, 21 Sep 2018 07:07:06 -0700
Committer:  Ingo Molnar <mingo@kernel.org>
CommitDate: Tue, 2 Oct 2018 09:38:02 +0200

perf/x86/intel/uncore: Fix PCI BDF address of M3UPI on SKX

The counters on M3UPI Link 0 and Link 3 don't count properly, and writing
0 to these counters may causes system crash on some machines.

The PCI BDF addresses of the M3UPI in the current code are incorrect.

The correct addresses should be:

  D18:F1	0x204D
  D18:F2	0x204E
  D18:F5	0x204D

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Fixes: cd34cd97b7b4 ("perf/x86/intel/uncore: Add Skylake server uncore support")
Link: http://lkml.kernel.org/r/1537538826-55489-1-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/events/intel/uncore_snbep.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index 53b981dcdb42..c07bee31abe8 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -3931,16 +3931,16 @@ static const struct pci_device_id skx_uncore_pci_ids[] = {
 		.driver_data = UNCORE_PCI_DEV_FULL_DATA(21, 5, SKX_PCI_UNCORE_M2PCIE, 3),
 	},
 	{ /* M3UPI0 Link 0 */
-		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x204C),
-		.driver_data = UNCORE_PCI_DEV_FULL_DATA(18, 0, SKX_PCI_UNCORE_M3UPI, 0),
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x204D),
+		.driver_data = UNCORE_PCI_DEV_FULL_DATA(18, 1, SKX_PCI_UNCORE_M3UPI, 0),
 	},
 	{ /* M3UPI0 Link 1 */
-		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x204D),
-		.driver_data = UNCORE_PCI_DEV_FULL_DATA(18, 1, SKX_PCI_UNCORE_M3UPI, 1),
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x204E),
+		.driver_data = UNCORE_PCI_DEV_FULL_DATA(18, 2, SKX_PCI_UNCORE_M3UPI, 1),
 	},
 	{ /* M3UPI1 Link 2 */
-		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x204C),
-		.driver_data = UNCORE_PCI_DEV_FULL_DATA(18, 4, SKX_PCI_UNCORE_M3UPI, 2),
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x204D),
+		.driver_data = UNCORE_PCI_DEV_FULL_DATA(18, 5, SKX_PCI_UNCORE_M3UPI, 2),
 	},
 	{ /* end: all zeroes */ }
 };

      parent reply	other threads:[~2018-10-02 10:03 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-21 14:07 [PATCH] perf/x86/intel/uncore: Fix PCI BDF address of M3UPI on SKX kan.liang
2018-09-21 14:14 ` Peter Zijlstra
2018-09-21 14:37   ` Liang, Kan
2018-10-02 10:02 ` tip-bot for Kan Liang [this message]

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=tip-9d92cfeaf5215158d26d2991be7f7ff865cb98f3@git.kernel.org \
    --to=tipbot@zytor.com \
    --cc=acme@redhat.com \
    --cc=alexander.shishkin@linux.intel.com \
    --cc=eranian@google.com \
    --cc=hpa@zytor.com \
    --cc=jolsa@redhat.com \
    --cc=kan.liang@linux.intel.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-tip-commits@vger.kernel.org \
    --cc=mingo@kernel.org \
    --cc=peterz@infradead.org \
    --cc=tglx@linutronix.de \
    --cc=torvalds@linux-foundation.org \
    --cc=vincent.weaver@maine.edu \
    /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.