From: Max Filippov <jcmvbkbc@gmail.com>
To: linux-xtensa@linux-xtensa.org, linux-kernel@vger.kernel.org
Cc: Chris Zankel <chris@zankel.net>, Marc Gauthier <marc@cadence.com>,
Max Filippov <jcmvbkbc@gmail.com>
Subject: [PATCH v2 06/13] xtensa: count software page fault perf events
Date: Sat, 18 Jul 2015 11:30:09 +0300 [thread overview]
Message-ID: <1437208216-15729-7-git-send-email-jcmvbkbc@gmail.com> (raw)
In-Reply-To: <1437208216-15729-1-git-send-email-jcmvbkbc@gmail.com>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
---
arch/xtensa/mm/fault.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/arch/xtensa/mm/fault.c b/arch/xtensa/mm/fault.c
index 9e3571a..76360a2 100644
--- a/arch/xtensa/mm/fault.c
+++ b/arch/xtensa/mm/fault.c
@@ -15,6 +15,7 @@
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/hardirq.h>
+#include <linux/perf_event.h>
#include <asm/mmu_context.h>
#include <asm/cacheflush.h>
#include <asm/hardirq.h>
@@ -142,6 +143,12 @@ good_area:
}
up_read(&mm->mmap_sem);
+ perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address);
+ if (flags & VM_FAULT_MAJOR)
+ perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ, 1, regs, address);
+ else if (flags & VM_FAULT_MINOR)
+ perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN, 1, regs, address);
+
return;
/* Something tried to access memory that isn't in our memory map..
--
1.8.1.4
next prev parent reply other threads:[~2015-07-18 8:31 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-18 8:30 [PATCH v2 00/13] Support hardware perf counters on xtensa Max Filippov
2015-07-18 8:30 ` [PATCH v2 01/13] xtensa: clean up Kconfig dependencies for custom cores Max Filippov
2015-07-18 8:30 ` [PATCH v2 02/13] xtensa: keep exception/interrupt stack continuous Max Filippov
2015-07-18 8:30 ` [PATCH v2 03/13] xtensa: move oprofile stack tracing to stacktrace.c Max Filippov
2015-07-18 8:30 ` [PATCH v2 04/13] xtensa: select PERF_USE_VMALLOC for cache-aliasing configurations Max Filippov
2015-07-18 8:30 ` [PATCH v2 05/13] xtensa: add profiling IRQ type to xtensa_irq_map Max Filippov
2015-07-18 8:30 ` Max Filippov [this message]
2015-07-18 8:30 ` [PATCH v2 07/13] xtensa: implement counting and sampling perf events Max Filippov
2015-08-06 19:46 ` Arnaldo Carvalho de Melo
2015-08-07 9:13 ` Peter Zijlstra
2015-08-07 12:03 ` Max Filippov
2015-08-07 13:12 ` Arnaldo Carvalho de Melo
2015-07-18 8:30 ` [PATCH v2 08/13] perf tools: xtensa: add DWARF register names Max Filippov
2015-08-07 7:22 ` [tip:perf/core] perf tools xtensa: Add " tip-bot for Max Filippov
2015-07-18 8:30 ` [PATCH v2 09/13] xtensa: reorganize irq flags tracing Max Filippov
2015-07-18 8:30 ` [PATCH v2 10/13] xtensa: fix kernel register spilling Max Filippov
2015-07-18 8:30 ` [PATCH v2 11/13] xtensa: don't touch EXC_TABLE_FIXUP in _switch_to Max Filippov
2015-07-18 8:30 ` [PATCH v2 12/13] xtensa: implement fake NMI Max Filippov
2015-07-27 14:36 ` Max Filippov
2015-07-27 15:14 ` Peter Zijlstra
2015-07-18 8:30 ` [PATCH v2 13/13] xtensa: drop unused irq_err_count Max Filippov
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=1437208216-15729-7-git-send-email-jcmvbkbc@gmail.com \
--to=jcmvbkbc@gmail.com \
--cc=chris@zankel.net \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-xtensa@linux-xtensa.org \
--cc=marc@cadence.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox