diff options
Diffstat (limited to 'include/asm-x86/tlbflush_32.h')
-rw-r--r-- | include/asm-x86/tlbflush_32.h | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/include/asm-x86/tlbflush_32.h b/include/asm-x86/tlbflush_32.h deleted file mode 100644 index 9e07cc8f2d94..000000000000 --- a/include/asm-x86/tlbflush_32.h +++ /dev/null @@ -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 */ |