diff options
Diffstat (limited to 'arch/arc/include/asm/tlb.h')
| -rw-r--r-- | arch/arc/include/asm/tlb.h | 53 |
1 files changed, 21 insertions, 32 deletions
diff --git a/arch/arc/include/asm/tlb.h b/arch/arc/include/asm/tlb.h index 3eb2ce0bdfa..a9db5f62aaf 100644 --- a/arch/arc/include/asm/tlb.h +++ b/arch/arc/include/asm/tlb.h @@ -9,50 +9,39 @@ #ifndef _ASM_ARC_TLB_H #define _ASM_ARC_TLB_H -#ifdef __KERNEL__ - -#include <asm/pgtable.h> - -/* Masks for actual TLB "PD"s */ -#define PTE_BITS_IN_PD0 (_PAGE_GLOBAL | _PAGE_PRESENT) -#define PTE_BITS_IN_PD1 (PAGE_MASK | _PAGE_CACHEABLE | \ - _PAGE_EXECUTE | _PAGE_WRITE | _PAGE_READ | \ - _PAGE_K_EXECUTE | _PAGE_K_WRITE | _PAGE_K_READ) - -#ifndef __ASSEMBLY__ - -#define tlb_flush(tlb) local_flush_tlb_mm((tlb)->mm) +#define tlb_flush(tlb) \ +do { \ + if (tlb->fullmm) \ + flush_tlb_mm((tlb)->mm); \ +} while (0) /* * This pair is called at time of munmap/exit to flush cache and TLB entries * for mappings being torn down. - * 1) cache-flush part -implemented via tlb_start_vma( ) can be NOP (for now) - * as we don't support aliasing configs in our VIPT D$. - * 2) tlb-flush part - implemted via tlb_end_vma( ) can be NOP as well- - * albiet for difft reasons - its better handled by moving to new ASID + * 1) cache-flush part -implemented via tlb_start_vma( ) for VIPT aliasing D$ + * 2) tlb-flush part - implemted via tlb_end_vma( ) flushes the TLB range * * Note, read http://lkml.org/lkml/2004/1/15/6 */ +#ifndef CONFIG_ARC_CACHE_VIPT_ALIASING #define tlb_start_vma(tlb, vma) -#define tlb_end_vma(tlb, vma) - -#define __tlb_remove_tlb_entry(tlb, ptep, address) - -#include <linux/pagemap.h> -#include <asm-generic/tlb.h> - -#ifdef CONFIG_ARC_DBG_TLB_PARANOIA -void tlb_paranoid_check(unsigned int pid_sw, unsigned long address); #else -#define tlb_paranoid_check(a, b) +#define tlb_start_vma(tlb, vma) \ +do { \ + if (!tlb->fullmm) \ + flush_cache_range(vma, vma->vm_start, vma->vm_end); \ +} while(0) #endif -void arc_mmu_init(void); -extern char *arc_mmu_mumbojumbo(int cpu_id, char *buf, int len); -void __init read_decode_mmu_bcr(void); +#define tlb_end_vma(tlb, vma) \ +do { \ + if (!tlb->fullmm) \ + flush_tlb_range(vma, vma->vm_start, vma->vm_end); \ +} while (0) -#endif /* __ASSEMBLY__ */ +#define __tlb_remove_tlb_entry(tlb, ptep, address) -#endif /* __KERNEL__ */ +#include <linux/pagemap.h> +#include <asm-generic/tlb.h> #endif /* _ASM_ARC_TLB_H */ |