mirror of
https://github.com/adulau/aha.git
synced 2024-12-28 19:56:18 +00:00
x86: merge tlbflush.h variants
The delta is now minimal. Merge them Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner
Ingo Molnar
parent
0b9c99b6f2
commit
d291cf8363
3 changed files with 156 additions and 291 deletions
|
|
@ -1,5 +1,158 @@
|
|||
#ifdef CONFIG_X86_32
|
||||
# include "tlbflush_32.h"
|
||||
#ifndef _ASM_X86_TLBFLUSH_H
|
||||
#define _ASM_X86_TLBFLUSH_H
|
||||
|
||||
#include <linux/mm.h>
|
||||
#include <linux/sched.h>
|
||||
|
||||
#include <asm/processor.h>
|
||||
#include <asm/system.h>
|
||||
|
||||
#ifdef CONFIG_PARAVIRT
|
||||
#include <asm/paravirt.h>
|
||||
#else
|
||||
# include "tlbflush_64.h"
|
||||
#define __flush_tlb() __native_flush_tlb()
|
||||
#define __flush_tlb_global() __native_flush_tlb_global()
|
||||
#define __flush_tlb_single(addr) __native_flush_tlb_single(addr)
|
||||
#endif
|
||||
|
||||
static inline void __native_flush_tlb(void)
|
||||
{
|
||||
write_cr3(read_cr3());
|
||||
}
|
||||
|
||||
static inline void __native_flush_tlb_global(void)
|
||||
{
|
||||
unsigned long cr4 = read_cr4();
|
||||
|
||||
/* clear PGE */
|
||||
write_cr4(cr4 & ~X86_CR4_PGE);
|
||||
/* write old PGE again and flush TLBs */
|
||||
write_cr4(cr4);
|
||||
}
|
||||
|
||||
static inline void __native_flush_tlb_single(unsigned long addr)
|
||||
{
|
||||
__asm__ __volatile__("invlpg (%0)" ::"r" (addr) : "memory");
|
||||
}
|
||||
|
||||
static inline void __flush_tlb_all(void)
|
||||
{
|
||||
if (cpu_has_pge)
|
||||
__flush_tlb_global();
|
||||
else
|
||||
__flush_tlb();
|
||||
}
|
||||
|
||||
static inline void __flush_tlb_one(unsigned long addr)
|
||||
{
|
||||
if (cpu_has_invlpg)
|
||||
__flush_tlb_single(addr);
|
||||
else
|
||||
__flush_tlb();
|
||||
}
|
||||
|
||||
#ifdef CONFIG_X86_32
|
||||
# define TLB_FLUSH_ALL 0xffffffff
|
||||
#else
|
||||
# define TLB_FLUSH_ALL -1ULL
|
||||
#endif
|
||||
|
||||
/*
|
||||
* TLB flushing:
|
||||
*
|
||||
* - flush_tlb() flushes the current mm struct TLBs
|
||||
* - flush_tlb_all() flushes all processes TLBs
|
||||
* - flush_tlb_mm(mm) flushes the specified mm context TLB's
|
||||
* - flush_tlb_page(vma, vmaddr) flushes one page
|
||||
* - flush_tlb_range(vma, start, end) flushes a range of pages
|
||||
* - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
|
||||
* - flush_tlb_others(cpumask, mm, va) flushes TLBs on other cpus
|
||||
*
|
||||
* ..but the i386 has somewhat limited tlb flushing capabilities,
|
||||
* and page-granular flushes are available only on i486 and up.
|
||||
*
|
||||
* x86-64 can only flush individual pages or full VMs. For a range flush
|
||||
* we always do the full VM. Might be worth trying if for a small
|
||||
* range a few INVLPGs in a row are a win.
|
||||
*/
|
||||
|
||||
#ifndef CONFIG_SMP
|
||||
|
||||
#define flush_tlb() __flush_tlb()
|
||||
#define flush_tlb_all() __flush_tlb_all()
|
||||
#define local_flush_tlb() __flush_tlb()
|
||||
|
||||
static inline void flush_tlb_mm(struct mm_struct *mm)
|
||||
{
|
||||
if (mm == current->active_mm)
|
||||
__flush_tlb();
|
||||
}
|
||||
|
||||
static inline void flush_tlb_page(struct vm_area_struct *vma,
|
||||
unsigned long addr)
|
||||
{
|
||||
if (vma->vm_mm == current->active_mm)
|
||||
__flush_tlb_one(addr);
|
||||
}
|
||||
|
||||
static inline void flush_tlb_range(struct vm_area_struct *vma,
|
||||
unsigned long start, unsigned long end)
|
||||
{
|
||||
if (vma->vm_mm == current->active_mm)
|
||||
__flush_tlb();
|
||||
}
|
||||
|
||||
static inline void native_flush_tlb_others(const cpumask_t *cpumask,
|
||||
struct mm_struct *mm,
|
||||
unsigned long va)
|
||||
{
|
||||
}
|
||||
|
||||
#else /* SMP */
|
||||
|
||||
#include <asm/smp.h>
|
||||
|
||||
#define local_flush_tlb() __flush_tlb()
|
||||
|
||||
extern void flush_tlb_all(void);
|
||||
extern void flush_tlb_current_task(void);
|
||||
extern void flush_tlb_mm(struct mm_struct *);
|
||||
extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
|
||||
|
||||
#define flush_tlb() flush_tlb_current_task()
|
||||
|
||||
static inline void flush_tlb_range(struct vm_area_struct *vma,
|
||||
unsigned long start, unsigned long end)
|
||||
{
|
||||
flush_tlb_mm(vma->vm_mm);
|
||||
}
|
||||
|
||||
void native_flush_tlb_others(const cpumask_t *cpumask, struct mm_struct *mm,
|
||||
unsigned long va);
|
||||
|
||||
#define TLBSTATE_OK 1
|
||||
#define TLBSTATE_LAZY 2
|
||||
|
||||
#ifdef CONFIG_X86_32
|
||||
struct tlb_state
|
||||
{
|
||||
struct mm_struct *active_mm;
|
||||
int state;
|
||||
char __cacheline_padding[L1_CACHE_BYTES-8];
|
||||
};
|
||||
DECLARE_PER_CPU(struct tlb_state, cpu_tlbstate);
|
||||
#endif
|
||||
|
||||
#endif /* SMP */
|
||||
|
||||
#ifndef CONFIG_PARAVIRT
|
||||
#define flush_tlb_others(mask, mm, va) native_flush_tlb_others(&mask, mm, va)
|
||||
#endif
|
||||
|
||||
static inline void flush_tlb_kernel_range(unsigned long start,
|
||||
unsigned long end)
|
||||
{
|
||||
flush_tlb_all();
|
||||
}
|
||||
|
||||
#endif /* _ASM_X86_TLBFLUSH_H */
|
||||
|
|
|
|||
|
|
@ -1,148 +0,0 @@
|
|||
#ifndef _X86_TLBFLUSH_H
|
||||
#define _X86_TLBFLUSH_H
|
||||
|
||||
#include <linux/mm.h>
|
||||
#include <linux/sched.h>
|
||||
|
||||
#include <asm/processor.h>
|
||||
#include <asm/system.h>
|
||||
|
||||
#ifdef CONFIG_PARAVIRT
|
||||
#include <asm/paravirt.h>
|
||||
#else
|
||||
#define __flush_tlb() __native_flush_tlb()
|
||||
#define __flush_tlb_global() __native_flush_tlb_global()
|
||||
#define __flush_tlb_single(addr) __native_flush_tlb_single(addr)
|
||||
#endif
|
||||
|
||||
static inline void __native_flush_tlb(void)
|
||||
{
|
||||
write_cr3(read_cr3());
|
||||
}
|
||||
|
||||
static inline void __native_flush_tlb_global(void)
|
||||
{
|
||||
unsigned long cr4 = read_cr4();
|
||||
|
||||
/* clear PGE */
|
||||
write_cr4(cr4 & ~X86_CR4_PGE);
|
||||
/* write old PGE again and flush TLBs */
|
||||
write_cr4(cr4);
|
||||
}
|
||||
|
||||
static inline void __native_flush_tlb_single(unsigned long addr)
|
||||
{
|
||||
__asm__ __volatile__("invlpg (%0)" ::"r" (addr) : "memory");
|
||||
}
|
||||
|
||||
static inline void __flush_tlb_all(void)
|
||||
{
|
||||
if (cpu_has_pge)
|
||||
__flush_tlb_global();
|
||||
else
|
||||
__flush_tlb();
|
||||
}
|
||||
|
||||
static inline void __flush_tlb_one(unsigned long addr)
|
||||
{
|
||||
if (cpu_has_invlpg)
|
||||
__flush_tlb_single(addr);
|
||||
else
|
||||
__flush_tlb();
|
||||
}
|
||||
|
||||
/*
|
||||
* TLB flushing:
|
||||
*
|
||||
* - flush_tlb() flushes the current mm struct TLBs
|
||||
* - flush_tlb_all() flushes all processes TLBs
|
||||
* - flush_tlb_mm(mm) flushes the specified mm context TLB's
|
||||
* - flush_tlb_page(vma, vmaddr) flushes one page
|
||||
* - flush_tlb_range(vma, start, end) flushes a range of pages
|
||||
* - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
|
||||
* - flush_tlb_others(cpumask, mm, va) flushes a TLBs on other cpus
|
||||
*
|
||||
* ..but the i386 has somewhat limited tlb flushing capabilities,
|
||||
* and page-granular flushes are available only on i486 and up.
|
||||
*/
|
||||
|
||||
#define TLB_FLUSH_ALL 0xffffffff
|
||||
|
||||
#ifndef CONFIG_SMP
|
||||
|
||||
#define flush_tlb() __flush_tlb()
|
||||
#define flush_tlb_all() __flush_tlb_all()
|
||||
#define local_flush_tlb() __flush_tlb()
|
||||
|
||||
static inline void flush_tlb_mm(struct mm_struct *mm)
|
||||
{
|
||||
if (mm == current->active_mm)
|
||||
__flush_tlb();
|
||||
}
|
||||
|
||||
static inline void flush_tlb_page(struct vm_area_struct *vma,
|
||||
unsigned long addr)
|
||||
{
|
||||
if (vma->vm_mm == current->active_mm)
|
||||
__flush_tlb_one(addr);
|
||||
}
|
||||
|
||||
static inline void flush_tlb_range(struct vm_area_struct *vma,
|
||||
unsigned long start, unsigned long end)
|
||||
{
|
||||
if (vma->vm_mm == current->active_mm)
|
||||
__flush_tlb();
|
||||
}
|
||||
|
||||
static inline void native_flush_tlb_others(const cpumask_t *cpumask,
|
||||
struct mm_struct *mm,
|
||||
unsigned long va)
|
||||
{
|
||||
}
|
||||
|
||||
#else /* SMP */
|
||||
|
||||
#include <asm/smp.h>
|
||||
|
||||
#define local_flush_tlb() __flush_tlb()
|
||||
|
||||
extern void flush_tlb_all(void);
|
||||
extern void flush_tlb_current_task(void);
|
||||
extern void flush_tlb_mm(struct mm_struct *);
|
||||
extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
|
||||
|
||||
#define flush_tlb() flush_tlb_current_task()
|
||||
|
||||
static inline void flush_tlb_range(struct vm_area_struct *vma,
|
||||
unsigned long start, unsigned long end)
|
||||
{
|
||||
flush_tlb_mm(vma->vm_mm);
|
||||
}
|
||||
|
||||
void native_flush_tlb_others(const cpumask_t *cpumask, struct mm_struct *mm,
|
||||
unsigned long va);
|
||||
|
||||
#define TLBSTATE_OK 1
|
||||
#define TLBSTATE_LAZY 2
|
||||
|
||||
struct tlb_state
|
||||
{
|
||||
struct mm_struct *active_mm;
|
||||
int state;
|
||||
char __cacheline_padding[L1_CACHE_BYTES-8];
|
||||
};
|
||||
DECLARE_PER_CPU(struct tlb_state, cpu_tlbstate);
|
||||
|
||||
#endif /* SMP */
|
||||
|
||||
#ifndef CONFIG_PARAVIRT
|
||||
#define flush_tlb_others(mask, mm, va) native_flush_tlb_others(&mask, mm, va)
|
||||
#endif
|
||||
|
||||
static inline void flush_tlb_kernel_range(unsigned long start,
|
||||
unsigned long end)
|
||||
{
|
||||
flush_tlb_all();
|
||||
}
|
||||
|
||||
#endif /* _X86_TLBFLUSH_H */
|
||||
|
|
@ -1,140 +0,0 @@
|
|||
#ifndef _X86_TLBFLUSH_H
|
||||
#define _X86_TLBFLUSH_H
|
||||
|
||||
#include <linux/mm.h>
|
||||
#include <linux/sched.h>
|
||||
|
||||
#include <asm/processor.h>
|
||||
#include <asm/system.h>
|
||||
|
||||
#ifdef CONFIG_PARAVIRT
|
||||
#include <asm/paravirt.h>
|
||||
#else
|
||||
#define __flush_tlb() __native_flush_tlb()
|
||||
#define __flush_tlb_global() __native_flush_tlb_global()
|
||||
#define __flush_tlb_single(addr) __native_flush_tlb_single(addr)
|
||||
#endif
|
||||
|
||||
static inline void __native_flush_tlb(void)
|
||||
{
|
||||
write_cr3(read_cr3());
|
||||
}
|
||||
|
||||
static inline void __native_flush_tlb_global(void)
|
||||
{
|
||||
unsigned long cr4 = read_cr4();
|
||||
|
||||
/* clear PGE */
|
||||
write_cr4(cr4 & ~X86_CR4_PGE);
|
||||
/* write old PGE again and flush TLBs */
|
||||
write_cr4(cr4);
|
||||
}
|
||||
|
||||
static inline void __native_flush_tlb_single(unsigned long addr)
|
||||
{
|
||||
__asm__ __volatile__("invlpg (%0)" ::"r" (addr) : "memory");
|
||||
}
|
||||
|
||||
static inline void __flush_tlb_all(void)
|
||||
{
|
||||
if (cpu_has_pge)
|
||||
__flush_tlb_global();
|
||||
else
|
||||
__flush_tlb();
|
||||
}
|
||||
|
||||
static inline void __flush_tlb_one(unsigned long addr)
|
||||
{
|
||||
if (cpu_has_invlpg)
|
||||
__flush_tlb_single(addr);
|
||||
else
|
||||
__flush_tlb();
|
||||
}
|
||||
|
||||
/*
|
||||
* TLB flushing:
|
||||
*
|
||||
* - flush_tlb() flushes the current mm struct TLBs
|
||||
* - flush_tlb_all() flushes all processes TLBs
|
||||
* - flush_tlb_mm(mm) flushes the specified mm context TLB's
|
||||
* - flush_tlb_page(vma, vmaddr) flushes one page
|
||||
* - flush_tlb_range(vma, start, end) flushes a range of pages
|
||||
* - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
|
||||
*
|
||||
* x86-64 can only flush individual pages or full VMs. For a range flush
|
||||
* we always do the full VM. Might be worth trying if for a small
|
||||
* range a few INVLPGs in a row are a win.
|
||||
*/
|
||||
|
||||
#define TLB_FLUSH_ALL -1ULL
|
||||
|
||||
#ifndef CONFIG_SMP
|
||||
|
||||
#define flush_tlb() __flush_tlb()
|
||||
#define flush_tlb_all() __flush_tlb_all()
|
||||
#define local_flush_tlb() __flush_tlb()
|
||||
|
||||
static inline void flush_tlb_mm(struct mm_struct *mm)
|
||||
{
|
||||
if (mm == current->active_mm)
|
||||
__flush_tlb();
|
||||
}
|
||||
|
||||
static inline void flush_tlb_page(struct vm_area_struct *vma,
|
||||
unsigned long addr)
|
||||
{
|
||||
if (vma->vm_mm == current->active_mm)
|
||||
__flush_tlb_one(addr);
|
||||
}
|
||||
|
||||
static inline void flush_tlb_range(struct vm_area_struct *vma,
|
||||
unsigned long start, unsigned long end)
|
||||
{
|
||||
if (vma->vm_mm == current->active_mm)
|
||||
__flush_tlb();
|
||||
}
|
||||
|
||||
static inline void native_flush_tlb_others(const cpumask_t *cpumask,
|
||||
struct mm_struct *mm,
|
||||
unsigned long va)
|
||||
{
|
||||
}
|
||||
|
||||
#else /* SMP */
|
||||
|
||||
#include <asm/smp.h>
|
||||
|
||||
#define local_flush_tlb() __flush_tlb()
|
||||
|
||||
extern void flush_tlb_all(void);
|
||||
extern void flush_tlb_current_task(void);
|
||||
extern void flush_tlb_mm(struct mm_struct *);
|
||||
extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
|
||||
|
||||
#define flush_tlb() flush_tlb_current_task()
|
||||
|
||||
static inline void flush_tlb_range(struct vm_area_struct *vma,
|
||||
unsigned long start, unsigned long end)
|
||||
{
|
||||
flush_tlb_mm(vma->vm_mm);
|
||||
}
|
||||
|
||||
void native_flush_tlb_others(const cpumask_t *cpumask, struct mm_struct *mm,
|
||||
unsigned long va);
|
||||
|
||||
#define TLBSTATE_OK 1
|
||||
#define TLBSTATE_LAZY 2
|
||||
|
||||
#endif /* SMP */
|
||||
|
||||
#ifndef CONFIG_PARAVIRT
|
||||
#define flush_tlb_others(mask, mm, va) native_flush_tlb_others(&mask, mm, va)
|
||||
#endif
|
||||
|
||||
static inline void flush_tlb_kernel_range(unsigned long start,
|
||||
unsigned long end)
|
||||
{
|
||||
flush_tlb_all();
|
||||
}
|
||||
|
||||
#endif /* _X86_TLBFLUSH_H */
|
||||
Loading…
Reference in a new issue