linux-kernel - [PATCH 2/7] Simple Performance Counters: x86

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <11859243121617-git-send-email-clameter@sgi.com>
Date:	Tue, 31 Jul 2007 16:25:07 -0700
From:	Christoph Lameter <clameter@....com>
To:	linux-kernel@...r.kernel.org
Cc:	Christoph Lameter <clameter@....com>
Subject: [PATCH 2/7] Simple Performance Counters: x86_64 support

Export cycles_to_ns (after renaming the cycles_2_ns to cycles_to_ns to be
conforming to other arches).

Signed-off-by: Christoph Lameter <clameter@....com>
---
 arch/x86_64/kernel/tsc.c   |    4 ++--
 include/asm-x86_64/timex.h |    1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86_64/kernel/tsc.c b/arch/x86_64/kernel/tsc.c
index 2a59bde..59f69af 100644
--- a/arch/x86_64/kernel/tsc.c
+++ b/arch/x86_64/kernel/tsc.c
@@ -23,7 +23,7 @@ void set_cyc2ns_scale(unsigned long khz)
 	cyc2ns_scale = (NSEC_PER_MSEC << NS_SCALE) / khz;
 }
 
-static unsigned long long cycles_2_ns(unsigned long long cyc)
+unsigned long long cycles_to_ns(unsigned long long cyc)
 {
 	return (cyc * cyc2ns_scale) >> NS_SCALE;
 }
@@ -39,7 +39,7 @@ unsigned long long sched_clock(void)
 	 */
 
 	rdtscll(a);
-	return cycles_2_ns(a);
+	return cycles_to_ns(a);
 }
 
 static int tsc_unstable;
diff --git a/include/asm-x86_64/timex.h b/include/asm-x86_64/timex.h
index 6ed21f4..d5e126c 100644
--- a/include/asm-x86_64/timex.h
+++ b/include/asm-x86_64/timex.h
@@ -28,4 +28,5 @@ extern int read_current_timer(unsigned long *timer_value);
 
 extern void mark_tsc_unstable(char *msg);
 extern void set_cyc2ns_scale(unsigned long khz);
+unsigned long long cycles_to_ns(unsigned long long cyc);
 #endif
-- 
1.5.2.4

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/