diff options
Diffstat (limited to 'arch/arc/include/asm/tlb.h')
| -rw-r--r-- | arch/arc/include/asm/tlb.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/arc/include/asm/tlb.h b/arch/arc/include/asm/tlb.h new file mode 100644 index 000000000..a9db5f62a --- /dev/null +++ b/arch/arc/include/asm/tlb.h @@ -0,0 +1,47 @@ +/* + * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _ASM_ARC_TLB_H +#define _ASM_ARC_TLB_H + +#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( ) 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) +#else +#define tlb_start_vma(tlb, vma) \ +do { \ + if (!tlb->fullmm) \ + flush_cache_range(vma, vma->vm_start, vma->vm_end); \ +} while(0) +#endif + +#define tlb_end_vma(tlb, vma) \ +do { \ + if (!tlb->fullmm) \ + flush_tlb_range(vma, vma->vm_start, vma->vm_end); \ +} while (0) + +#define __tlb_remove_tlb_entry(tlb, ptep, address) + +#include <linux/pagemap.h> +#include <asm-generic/tlb.h> + +#endif /* _ASM_ARC_TLB_H */ |