The patch titled
i386: pit_latch_buggy has no effect
has been removed from the -mm tree. Its filename was
i386-pit_latch_buggy-has-no-effect.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: i386: pit_latch_buggy has no effect
From: takada <takada@xxxxxxxxxxxxx>
Eliminated the arch/i386/kernel/timers in 2.6.18, use clocksoures instead.
pit_latch_buggy was referred in timers/timer_tsc.c, and currently removed.
Therefore nobody refer it.
Until 2.6.17, MediaGX's TSC works correctly. after 2.6.18, warned "TSC
appears to be running slowly. Marking it as unstable". So marked unstable
TSC when CS55x0.
Cc: Andi Kleen <ak@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/i386/kernel/cpu/cyrix.c | 2 +-
arch/i386/kernel/time.c | 2 --
include/asm-i386/timer.h | 2 --
3 files changed, 1 insertion(+), 5 deletions(-)
diff -puN arch/i386/kernel/cpu/cyrix.c~i386-pit_latch_buggy-has-no-effect arch/i386/kernel/cpu/cyrix.c
--- a/arch/i386/kernel/cpu/cyrix.c~i386-pit_latch_buggy-has-no-effect
+++ a/arch/i386/kernel/cpu/cyrix.c
@@ -279,7 +279,7 @@ static void __cpuinit init_cyrix(struct
*/
if (vendor == PCI_VENDOR_ID_CYRIX &&
(device == PCI_DEVICE_ID_CYRIX_5510 || device == PCI_DEVICE_ID_CYRIX_5520))
- pit_latch_buggy = 1;
+ mark_tsc_unstable();
}
#endif
c->x86_cache_size=16; /* Yep 16K integrated cache thats it */
diff -puN arch/i386/kernel/time.c~i386-pit_latch_buggy-has-no-effect arch/i386/kernel/time.c
--- a/arch/i386/kernel/time.c~i386-pit_latch_buggy-has-no-effect
+++ a/arch/i386/kernel/time.c
@@ -70,8 +70,6 @@
#include <asm/i8259.h>
-int pit_latch_buggy; /* extern */
-
#include "do_timer.h"
unsigned int cpu_khz; /* Detected as we calibrate the TSC */
diff -puN include/asm-i386/timer.h~i386-pit_latch_buggy-has-no-effect include/asm-i386/timer.h
--- a/include/asm-i386/timer.h~i386-pit_latch_buggy-has-no-effect
+++ a/include/asm-i386/timer.h
@@ -5,8 +5,6 @@
#define TICK_SIZE (tick_nsec / 1000)
void setup_pit_timer(void);
-/* Modifiers for buggy PIT handling */
-extern int pit_latch_buggy;
extern int timer_ack;
extern int no_timer_check;
extern unsigned long long (*custom_sched_clock)(void);
_
Patches currently in -mm which might be from takada@xxxxxxxxxxxxx are
origin.patch
-
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