diff options
Diffstat (limited to 'kernel/arch/xtensa/include/asm/tlb.h')
| -rw-r--r-- | kernel/arch/xtensa/include/asm/tlb.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/kernel/arch/xtensa/include/asm/tlb.h b/kernel/arch/xtensa/include/asm/tlb.h new file mode 100644 index 000000000..0d766f9c1 --- /dev/null +++ b/kernel/arch/xtensa/include/asm/tlb.h @@ -0,0 +1,47 @@ +/* + * include/asm-xtensa/tlb.h + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2001 - 2005 Tensilica Inc. + */ + +#ifndef _XTENSA_TLB_H +#define _XTENSA_TLB_H + +#include <asm/cache.h> +#include <asm/page.h> + +#if (DCACHE_WAY_SIZE <= PAGE_SIZE) + +/* Note, read http://lkml.org/lkml/2004/1/15/6 */ + +# define tlb_start_vma(tlb,vma) do { } while (0) +# define tlb_end_vma(tlb,vma) do { } while (0) + +#else + +# define tlb_start_vma(tlb, vma) \ + do { \ + if (!tlb->fullmm) \ + flush_cache_range(vma, vma->vm_start, vma->vm_end); \ + } while(0) + +# define tlb_end_vma(tlb, vma) \ + do { \ + if (!tlb->fullmm) \ + flush_tlb_range(vma, vma->vm_start, vma->vm_end); \ + } while(0) + +#endif + +#define __tlb_remove_tlb_entry(tlb,pte,addr) do { } while (0) +#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm) + +#include <asm-generic/tlb.h> + +#define __pte_free_tlb(tlb, pte, address) pte_free((tlb)->mm, pte) + +#endif /* _XTENSA_TLB_H */ |