From: john stultz <johnstul@us.ibm.com>
To: marcelo <marcelo@conectiva.com.br>
Cc: lkml <linux-kernel@vger.kernel.org>
Subject: [TRIVIAL][PATCH] cpu_has_tsc cleanup
Date: 07 Aug 2002 17:03:49 -0700 [thread overview]
Message-ID: <1028765030.22918.166.camel@cog> (raw)
[-- Attachment #1: Type: text/plain, Size: 213 bytes --]
Marcelo,
Here is a trivial cleanup patch that replaces:
test_bit(X86_FEATURE_TSC, &boot_cpu_data.x86_capability)
w/ the cpu_has_tsc macro.
I believe this was originally by Brian Gerst for 2.5
thanks
-john
[-- Attachment #2: linux-2.4.20-pre1_tsc-cleanup_A0.patch --]
[-- Type: text/x-patch, Size: 1303 bytes --]
diff -Nru a/drivers/char/joystick/analog.c b/drivers/char/joystick/analog.c
--- a/drivers/char/joystick/analog.c Wed Aug 7 16:35:44 2002
+++ b/drivers/char/joystick/analog.c Wed Aug 7 16:35:44 2002
@@ -137,10 +137,9 @@
*/
#ifdef __i386__
-#define TSC_PRESENT (test_bit(X86_FEATURE_TSC, &boot_cpu_data.x86_capability))
-#define GET_TIME(x) do { if (TSC_PRESENT) rdtscl(x); else { outb(0, 0x43); x = inb(0x40); x |= inb(0x40) << 8; } } while (0)
-#define DELTA(x,y) (TSC_PRESENT?((y)-(x)):((x)-(y)+((x)<(y)?1193180L/HZ:0)))
-#define TIME_NAME (TSC_PRESENT?"TSC":"PIT")
+#define GET_TIME(x) do { if (cpu_has_tsc) rdtscl(x); else { outb(0, 0x43); x = inb(0x40); x |= inb(0x40) << 8; } } while (0)
+#define DELTA(x,y) (cpu_has_tsc?((y)-(x)):((x)-(y)+((x)<(y)?1193180L/HZ:0)))
+#define TIME_NAME (cpu_has_tsc?"TSC":"PIT")
#elif __x86_64__
#define GET_TIME(x) rdtscl(x)
#define DELTA(x,y) ((y)-(x))
diff -Nru a/drivers/char/random.c b/drivers/char/random.c
--- a/drivers/char/random.c Wed Aug 7 16:35:44 2002
+++ b/drivers/char/random.c Wed Aug 7 16:35:44 2002
@@ -735,7 +735,7 @@
int entropy = 0;
#if defined (__i386__)
- if ( test_bit(X86_FEATURE_TSC, &boot_cpu_data.x86_capability) ) {
+ if (cpu_has_tsc) {
__u32 high;
rdtsc(time, high);
num ^= high;
next reply other threads:[~2002-08-08 0:14 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-08 0:03 john stultz [this message]
2002-08-08 19:56 ` [TRIVIAL][PATCH] cpu_has_tsc cleanup george anzinger
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