|
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen-unstable] [XEN] Make tlbflush_time a PER_CPU variable.
# HG changeset patch
# User kaf24@xxxxxxxxxxxxxxxxxxxx
# Node ID f3fb7727cb9afdc0dc99637b6c680ed29454f513
# Parent 9aac8db168b4566450008437d49d1e1040f8d98a
[XEN] Make tlbflush_time a PER_CPU variable.
Signed-off-by: Keir Fraser <keir@xxxxxxxxxxxxx>
---
xen/arch/powerpc/setup.c | 2 +-
xen/arch/x86/flushtlb.c | 4 ++--
xen/arch/x86/x86_32/domain_page.c | 3 +--
xen/include/asm-powerpc/flushtlb.h | 15 ++++++++-------
xen/include/asm-x86/current.h | 2 +-
xen/include/asm-x86/flushtlb.h | 16 +++++++++-------
xen/include/xen/percpu.h | 1 -
7 files changed, 22 insertions(+), 21 deletions(-)
diff -r 9aac8db168b4 -r f3fb7727cb9a xen/arch/powerpc/setup.c
--- a/xen/arch/powerpc/setup.c Tue Aug 08 11:28:35 2006 +0100
+++ b/xen/arch/powerpc/setup.c Tue Aug 08 11:45:37 2006 +0100
@@ -55,7 +55,7 @@ boolean_param("earlygdb", opt_earlygdb);
boolean_param("earlygdb", opt_earlygdb);
u32 tlbflush_clock = 1U;
-u32 tlbflush_time[NR_CPUS];
+DEFINE_PER_CPU(u32, tlbflush_time);
unsigned int watchdog_on;
unsigned long wait_init_idle;
diff -r 9aac8db168b4 -r f3fb7727cb9a xen/arch/x86/flushtlb.c
--- a/xen/arch/x86/flushtlb.c Tue Aug 08 11:28:35 2006 +0100
+++ b/xen/arch/x86/flushtlb.c Tue Aug 08 11:45:37 2006 +0100
@@ -20,7 +20,7 @@
#endif
u32 tlbflush_clock = 1U;
-u32 tlbflush_time[NR_CPUS];
+DEFINE_PER_CPU(u32, tlbflush_time);
void write_cr3(unsigned long cr3)
{
@@ -71,7 +71,7 @@ void write_cr3(unsigned long cr3)
* case, so really we are being ultra paranoid.
*/
- tlbflush_time[smp_processor_id()] = t2;
+ this_cpu(tlbflush_time) = t2;
local_irq_restore(flags);
}
diff -r 9aac8db168b4 -r f3fb7727cb9a xen/arch/x86/x86_32/domain_page.c
--- a/xen/arch/x86/x86_32/domain_page.c Tue Aug 08 11:28:35 2006 +0100
+++ b/xen/arch/x86/x86_32/domain_page.c Tue Aug 08 11:45:37 2006 +0100
@@ -73,8 +73,7 @@ void *map_domain_page(unsigned long pfn)
if ( unlikely(cache->epoch != cache->shadow_epoch[vcpu]) )
{
cache->shadow_epoch[vcpu] = cache->epoch;
- if ( NEED_FLUSH(tlbflush_time[smp_processor_id()],
- cache->tlbflush_timestamp) )
+ if ( NEED_FLUSH(this_cpu(tlbflush_time), cache->tlbflush_timestamp) )
{
perfc_incrc(domain_page_tlb_flush);
local_flush_tlb();
diff -r 9aac8db168b4 -r f3fb7727cb9a xen/include/asm-powerpc/flushtlb.h
--- a/xen/include/asm-powerpc/flushtlb.h Tue Aug 08 11:28:35 2006 +0100
+++ b/xen/include/asm-powerpc/flushtlb.h Tue Aug 08 11:45:37 2006 +0100
@@ -22,6 +22,7 @@
#define _ASM_FLUSHTLB_H_
#include <xen/config.h>
+#include <xen/percpu.h>
#include <xen/types.h>
#include <asm/misc.h>
@@ -30,7 +31,7 @@ extern u32 tlbflush_clock;
#define tlbflush_current_time() tlbflush_clock
/* Time at which each CPU's TLB was last flushed. */
-extern u32 tlbflush_time[NR_CPUS];
+DECLARE_PER_CPU(u32, tlbflush_time);
static inline int NEED_FLUSH(u32 cpu_stamp, u32 lastuse_stamp)
{
@@ -44,12 +45,12 @@ static inline int NEED_FLUSH(u32 cpu_sta
* Filter the given set of CPUs, removing those that definitely flushed their
* TLB since @page_timestamp.
*/
-#define tlbflush_filter(mask, page_timestamp) \
-do { \
- unsigned int cpu; \
- for_each_cpu_mask ( cpu, mask ) \
- if ( !NEED_FLUSH(tlbflush_time[cpu], page_timestamp) ) \
- cpu_clear(cpu, mask); \
+#define tlbflush_filter(mask, page_timestamp) \
+do { \
+ unsigned int cpu; \
+ for_each_cpu_mask ( cpu, mask ) \
+ if ( !NEED_FLUSH(per_cpu(tlbflush_time, cpu), page_timestamp) ) \
+ cpu_clear(cpu, mask); \
} while ( 0 )
diff -r 9aac8db168b4 -r f3fb7727cb9a xen/include/asm-x86/current.h
--- a/xen/include/asm-x86/current.h Tue Aug 08 11:28:35 2006 +0100
+++ b/xen/include/asm-x86/current.h Tue Aug 08 11:45:37 2006 +0100
@@ -8,6 +8,7 @@
#define __X86_CURRENT_H__
#include <xen/config.h>
+#include <xen/percpu.h>
#include <public/xen.h>
#include <asm/page.h>
@@ -53,7 +54,6 @@ static inline struct cpu_info *get_cpu_i
#define schedule_tail(vcpu) (((vcpu)->arch.schedule_tail)(vcpu))
-#include <xen/percpu.h>
/*
* Which VCPU's state is currently running on each CPU?
* This is not necesasrily the same as 'current' as a CPU may be
diff -r 9aac8db168b4 -r f3fb7727cb9a xen/include/asm-x86/flushtlb.h
--- a/xen/include/asm-x86/flushtlb.h Tue Aug 08 11:28:35 2006 +0100
+++ b/xen/include/asm-x86/flushtlb.h Tue Aug 08 11:45:37 2006 +0100
@@ -11,13 +11,15 @@
#define __FLUSHTLB_H__
#include <xen/config.h>
+#include <xen/percpu.h>
#include <xen/smp.h>
+#include <xen/types.h>
/* The current time as shown by the virtual TLB clock. */
extern u32 tlbflush_clock;
/* Time at which each CPU's TLB was last flushed. */
-extern u32 tlbflush_time[NR_CPUS];
+DECLARE_PER_CPU(u32, tlbflush_time);
#define tlbflush_current_time() tlbflush_clock
@@ -47,12 +49,12 @@ static inline int NEED_FLUSH(u32 cpu_sta
* Filter the given set of CPUs, removing those that definitely flushed their
* TLB since @page_timestamp.
*/
-#define tlbflush_filter(mask, page_timestamp) \
-do { \
- unsigned int cpu; \
- for_each_cpu_mask ( cpu, mask ) \
- if ( !NEED_FLUSH(tlbflush_time[cpu], page_timestamp) ) \
- cpu_clear(cpu, mask); \
+#define tlbflush_filter(mask, page_timestamp) \
+do { \
+ unsigned int cpu; \
+ for_each_cpu_mask ( cpu, mask ) \
+ if ( !NEED_FLUSH(per_cpu(tlbflush_time, cpu), page_timestamp) ) \
+ cpu_clear(cpu, mask); \
} while ( 0 )
extern void new_tlbflush_clock_period(void);
diff -r 9aac8db168b4 -r f3fb7727cb9a xen/include/xen/percpu.h
--- a/xen/include/xen/percpu.h Tue Aug 08 11:28:35 2006 +0100
+++ b/xen/include/xen/percpu.h Tue Aug 08 11:45:37 2006 +0100
@@ -2,7 +2,6 @@
#define __XEN_PERCPU_H__
#include <xen/config.h>
-#include <xen/smp.h>
#include <asm/percpu.h>
/* Preferred on Xen. Also see arch-defined per_cpu(). */
_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-changelog
|
 |
Lists.xenproject.org is hosted with RackSpace, monitoring our |