mirror of
https://github.com/openwrt/openwrt.git
synced 2024-11-24 10:25:51 +08:00
ar71xx: nuke clocksource init patches, it is not required since 2.6.27
SVN-Revision: 20764
This commit is contained in:
parent
33bcbab6a4
commit
6139571932
@ -1,56 +0,0 @@
|
||||
--- a/arch/mips/kernel/cevt-r4k.c
|
||||
+++ b/arch/mips/kernel/cevt-r4k.c
|
||||
@@ -16,6 +16,22 @@
|
||||
#include <asm/cevt-r4k.h>
|
||||
|
||||
/*
|
||||
+ * Compare interrupt can be routed and latched outside the core,
|
||||
+ * so a single execution hazard barrier may not be enough to give
|
||||
+ * it time to clear as seen in the Cause register. 4 time the
|
||||
+ * pipeline depth seems reasonably conservative, and empirically
|
||||
+ * works better in configurations with high CPU/bus clock ratios.
|
||||
+ */
|
||||
+
|
||||
+#define compare_change_hazard() \
|
||||
+ do { \
|
||||
+ irq_disable_hazard(); \
|
||||
+ irq_disable_hazard(); \
|
||||
+ irq_disable_hazard(); \
|
||||
+ irq_disable_hazard(); \
|
||||
+ } while (0)
|
||||
+
|
||||
+/*
|
||||
* The SMTC Kernel for the 34K, 1004K, et. al. replaces several
|
||||
* of these routines with SMTC-specific variants.
|
||||
*/
|
||||
@@ -31,6 +47,7 @@ static int mips_next_event(unsigned long
|
||||
cnt = read_c0_count();
|
||||
cnt += delta;
|
||||
write_c0_compare(cnt);
|
||||
+ compare_change_hazard();
|
||||
res = ((int)(read_c0_count() - cnt) > 0) ? -ETIME : 0;
|
||||
return res;
|
||||
}
|
||||
@@ -100,22 +117,6 @@ static int c0_compare_int_pending(void)
|
||||
return (read_c0_cause() >> cp0_compare_irq) & 0x100;
|
||||
}
|
||||
|
||||
-/*
|
||||
- * Compare interrupt can be routed and latched outside the core,
|
||||
- * so a single execution hazard barrier may not be enough to give
|
||||
- * it time to clear as seen in the Cause register. 4 time the
|
||||
- * pipeline depth seems reasonably conservative, and empirically
|
||||
- * works better in configurations with high CPU/bus clock ratios.
|
||||
- */
|
||||
-
|
||||
-#define compare_change_hazard() \
|
||||
- do { \
|
||||
- irq_disable_hazard(); \
|
||||
- irq_disable_hazard(); \
|
||||
- irq_disable_hazard(); \
|
||||
- irq_disable_hazard(); \
|
||||
- } while (0)
|
||||
-
|
||||
int c0_compare_int_usable(void)
|
||||
{
|
||||
unsigned int delta;
|
@ -1,56 +0,0 @@
|
||||
--- a/arch/mips/kernel/cevt-r4k.c
|
||||
+++ b/arch/mips/kernel/cevt-r4k.c
|
||||
@@ -16,6 +16,22 @@
|
||||
#include <asm/cevt-r4k.h>
|
||||
|
||||
/*
|
||||
+ * Compare interrupt can be routed and latched outside the core,
|
||||
+ * so a single execution hazard barrier may not be enough to give
|
||||
+ * it time to clear as seen in the Cause register. 4 time the
|
||||
+ * pipeline depth seems reasonably conservative, and empirically
|
||||
+ * works better in configurations with high CPU/bus clock ratios.
|
||||
+ */
|
||||
+
|
||||
+#define compare_change_hazard() \
|
||||
+ do { \
|
||||
+ irq_disable_hazard(); \
|
||||
+ irq_disable_hazard(); \
|
||||
+ irq_disable_hazard(); \
|
||||
+ irq_disable_hazard(); \
|
||||
+ } while (0)
|
||||
+
|
||||
+/*
|
||||
* The SMTC Kernel for the 34K, 1004K, et. al. replaces several
|
||||
* of these routines with SMTC-specific variants.
|
||||
*/
|
||||
@@ -31,6 +47,7 @@ static int mips_next_event(unsigned long
|
||||
cnt = read_c0_count();
|
||||
cnt += delta;
|
||||
write_c0_compare(cnt);
|
||||
+ compare_change_hazard();
|
||||
res = ((int)(read_c0_count() - cnt) > 0) ? -ETIME : 0;
|
||||
return res;
|
||||
}
|
||||
@@ -100,22 +117,6 @@ static int c0_compare_int_pending(void)
|
||||
return (read_c0_cause() >> cp0_compare_irq_shift) & (1ul << CAUSEB_IP);
|
||||
}
|
||||
|
||||
-/*
|
||||
- * Compare interrupt can be routed and latched outside the core,
|
||||
- * so a single execution hazard barrier may not be enough to give
|
||||
- * it time to clear as seen in the Cause register. 4 time the
|
||||
- * pipeline depth seems reasonably conservative, and empirically
|
||||
- * works better in configurations with high CPU/bus clock ratios.
|
||||
- */
|
||||
-
|
||||
-#define compare_change_hazard() \
|
||||
- do { \
|
||||
- irq_disable_hazard(); \
|
||||
- irq_disable_hazard(); \
|
||||
- irq_disable_hazard(); \
|
||||
- irq_disable_hazard(); \
|
||||
- } while (0)
|
||||
-
|
||||
int c0_compare_int_usable(void)
|
||||
{
|
||||
unsigned int delta;
|
@ -1,56 +0,0 @@
|
||||
--- a/arch/mips/kernel/cevt-r4k.c
|
||||
+++ b/arch/mips/kernel/cevt-r4k.c
|
||||
@@ -16,6 +16,22 @@
|
||||
#include <asm/cevt-r4k.h>
|
||||
|
||||
/*
|
||||
+ * Compare interrupt can be routed and latched outside the core,
|
||||
+ * so a single execution hazard barrier may not be enough to give
|
||||
+ * it time to clear as seen in the Cause register. 4 time the
|
||||
+ * pipeline depth seems reasonably conservative, and empirically
|
||||
+ * works better in configurations with high CPU/bus clock ratios.
|
||||
+ */
|
||||
+
|
||||
+#define compare_change_hazard() \
|
||||
+ do { \
|
||||
+ irq_disable_hazard(); \
|
||||
+ irq_disable_hazard(); \
|
||||
+ irq_disable_hazard(); \
|
||||
+ irq_disable_hazard(); \
|
||||
+ } while (0)
|
||||
+
|
||||
+/*
|
||||
* The SMTC Kernel for the 34K, 1004K, et. al. replaces several
|
||||
* of these routines with SMTC-specific variants.
|
||||
*/
|
||||
@@ -31,6 +47,7 @@ static int mips_next_event(unsigned long
|
||||
cnt = read_c0_count();
|
||||
cnt += delta;
|
||||
write_c0_compare(cnt);
|
||||
+ compare_change_hazard();
|
||||
res = ((int)(read_c0_count() - cnt) > 0) ? -ETIME : 0;
|
||||
return res;
|
||||
}
|
||||
@@ -100,22 +117,6 @@ static int c0_compare_int_pending(void)
|
||||
return (read_c0_cause() >> cp0_compare_irq_shift) & (1ul << CAUSEB_IP);
|
||||
}
|
||||
|
||||
-/*
|
||||
- * Compare interrupt can be routed and latched outside the core,
|
||||
- * so a single execution hazard barrier may not be enough to give
|
||||
- * it time to clear as seen in the Cause register. 4 time the
|
||||
- * pipeline depth seems reasonably conservative, and empirically
|
||||
- * works better in configurations with high CPU/bus clock ratios.
|
||||
- */
|
||||
-
|
||||
-#define compare_change_hazard() \
|
||||
- do { \
|
||||
- irq_disable_hazard(); \
|
||||
- irq_disable_hazard(); \
|
||||
- irq_disable_hazard(); \
|
||||
- irq_disable_hazard(); \
|
||||
- } while (0)
|
||||
-
|
||||
int c0_compare_int_usable(void)
|
||||
{
|
||||
unsigned int delta;
|
Loading…
Reference in New Issue
Block a user