diff options
Diffstat (limited to 'include/asm-alpha/tlbflush.h')
-rw-r--r-- | include/asm-alpha/tlbflush.h | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/include/asm-alpha/tlbflush.h b/include/asm-alpha/tlbflush.h deleted file mode 100644 index 9d87aaa08c0..00000000000 --- a/include/asm-alpha/tlbflush.h +++ /dev/null @@ -1,151 +0,0 @@ -#ifndef _ALPHA_TLBFLUSH_H -#define _ALPHA_TLBFLUSH_H - -#include <linux/mm.h> -#include <asm/compiler.h> -#include <asm/pgalloc.h> - -#ifndef __EXTERN_INLINE -#define __EXTERN_INLINE extern inline -#define __MMU_EXTERN_INLINE -#endif - -extern void __load_new_mm_context(struct mm_struct *); - - -/* Use a few helper functions to hide the ugly broken ASN - numbers on early Alphas (ev4 and ev45). */ - -__EXTERN_INLINE void -ev4_flush_tlb_current(struct mm_struct *mm) -{ - __load_new_mm_context(mm); - tbiap(); -} - -__EXTERN_INLINE void -ev5_flush_tlb_current(struct mm_struct *mm) -{ - __load_new_mm_context(mm); -} - -/* Flush just one page in the current TLB set. We need to be very - careful about the icache here, there is no way to invalidate a - specific icache page. */ - -__EXTERN_INLINE void -ev4_flush_tlb_current_page(struct mm_struct * mm, - struct vm_area_struct *vma, - unsigned long addr) -{ - int tbi_flag = 2; - if (vma->vm_flags & VM_EXEC) { - __load_new_mm_context(mm); - tbi_flag = 3; - } - tbi(tbi_flag, addr); -} - -__EXTERN_INLINE void -ev5_flush_tlb_current_page(struct mm_struct * mm, - struct vm_area_struct *vma, - unsigned long addr) -{ - if (vma->vm_flags & VM_EXEC) - __load_new_mm_context(mm); - else - tbi(2, addr); -} - - -#ifdef CONFIG_ALPHA_GENERIC -# define flush_tlb_current alpha_mv.mv_flush_tlb_current -# define flush_tlb_current_page alpha_mv.mv_flush_tlb_current_page -#else -# ifdef CONFIG_ALPHA_EV4 -# define flush_tlb_current ev4_flush_tlb_current -# define flush_tlb_current_page ev4_flush_tlb_current_page -# else -# define flush_tlb_current ev5_flush_tlb_current -# define flush_tlb_current_page ev5_flush_tlb_current_page -# endif -#endif - -#ifdef __MMU_EXTERN_INLINE -#undef __EXTERN_INLINE -#undef __MMU_EXTERN_INLINE -#endif - -/* Flush current user mapping. */ -static inline void -flush_tlb(void) -{ - flush_tlb_current(current->active_mm); -} - -/* Flush someone else's user mapping. */ -static inline void -flush_tlb_other(struct mm_struct *mm) -{ - unsigned long *mmc = &mm->context[smp_processor_id()]; - /* Check it's not zero first to avoid cacheline ping pong - when possible. */ - if (*mmc) *mmc = 0; -} - -#ifndef CONFIG_SMP -/* Flush everything (kernel mapping may also have changed - due to vmalloc/vfree). */ -static inline void flush_tlb_all(void) -{ - tbia(); -} - -/* Flush a specified user mapping. */ -static inline void -flush_tlb_mm(struct mm_struct *mm) -{ - if (mm == current->active_mm) - flush_tlb_current(mm); - else - flush_tlb_other(mm); -} - -/* Page-granular tlb flush. */ -static inline void -flush_tlb_page(struct vm_area_struct *vma, unsigned long addr) -{ - struct mm_struct *mm = vma->vm_mm; - - if (mm == current->active_mm) - flush_tlb_current_page(mm, vma, addr); - else - flush_tlb_other(mm); -} - -/* Flush a specified range of user mapping. On the Alpha we flush - the whole user tlb. */ -static inline void -flush_tlb_range(struct vm_area_struct *vma, unsigned long start, - unsigned long end) -{ - flush_tlb_mm(vma->vm_mm); -} - -#else /* CONFIG_SMP */ - -extern void flush_tlb_all(void); -extern void flush_tlb_mm(struct mm_struct *); -extern void flush_tlb_page(struct vm_area_struct *, unsigned long); -extern void flush_tlb_range(struct vm_area_struct *, unsigned long, - unsigned long); - -#endif /* CONFIG_SMP */ - -static inline void flush_tlb_kernel_range(unsigned long start, - unsigned long end) -{ - flush_tlb_all(); -} - -#endif /* _ALPHA_TLBFLUSH_H */ |