openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity
linux/include/asm-x86/mmu.h

32 lines
505 B
C
Raw Normal View History

x86: consolidate header guards This patch is the result of an automatic script that consolidates the format of all the headers in include/asm-x86/. The format: 1. No leading underscore. Names with leading underscores are reserved. 2. Pathname components are separated by two underscores. So we can distinguish between mm_types.h and mm/types.h. 3. Everything except letters and numbers are turned into single underscores. Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
2008-06-18 23:08:48 +08:00
#ifndef ASM_X86__MMU_H
#define ASM_X86__MMU_H
x86: merge mmu{,_32,_64}.h Merge mmu_32.h and mmu_64.h into mmu.h. Signed-off-by: Chris Snook <csnook@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-20 14:56:59 +08:00
#include <linux/spinlock.h>
#include <linux/mutex.h>
/*
* The x86 doesn't have a mmu context, but
* we put the segment information here.
*
* cpu_vm_mask is used to optimize ldt flushing.
*/
include/asm-x86/mmu.h: checkpatch cleanups - formatting only Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-03-23 16:02:44 +08:00
typedef struct {
x86: merge mmu{,_32,_64}.h Merge mmu_32.h and mmu_64.h into mmu.h. Signed-off-by: Chris Snook <csnook@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-20 14:56:59 +08:00
void *ldt;
#ifdef CONFIG_X86_64
include/asm-x86/mmu.h: checkpatch cleanups - formatting only Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-03-23 16:02:44 +08:00
rwlock_t ldtlock;
i386/x86_64: move headers to include/asm-x86 Move the headers to include/asm-x86 and fixup the header install make rules Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-10-11 17:20:03 +08:00
#endif
x86: merge mmu{,_32,_64}.h Merge mmu_32.h and mmu_64.h into mmu.h. Signed-off-by: Chris Snook <csnook@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2007-10-20 14:56:59 +08:00
int size;
struct mutex lock;
void *vdso;
} mm_context_t;
x86: voluntary leave_mm before entering ACPI C3 Aviod TLB flush IPIs during C3 states by voluntary leave_mm() before entering C3. The performance impact of TLB flush on C3 should not be significant with respect to C3 wakeup latency. Also, CPUs tend to flush TLB in hardware while in C3 anyways. On a 8 logical CPU system, running make -j2, the number of tlbflush IPIs goes down from 40 per second to ~ 0. Total number of interrupts during the run of this workload was ~1200 per second, which makes it ~3% savings in wakeups. There was no measurable performance or power impact however. [ akpm@linux-foundation.org: symbol export fixes. ] Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30 20:32:01 +08:00
#ifdef CONFIG_SMP
void leave_mm(int cpu);
#else
static inline void leave_mm(int cpu)
{
}
#endif
x86: consolidate header guards This patch is the result of an automatic script that consolidates the format of all the headers in include/asm-x86/. The format: 1. No leading underscore. Names with leading underscores are reserved. 2. Pathname components are separated by two underscores. So we can distinguish between mm_types.h and mm/types.h. 3. Everything except letters and numbers are turned into single underscores. Signed-off-by: Vegard Nossum <vegard.nossum@gmail.com>
2008-06-18 23:08:48 +08:00
#endif /* ASM_X86__MMU_H */