1 /* 2 * Port on Texas Instruments TMS320C6x architecture 3 * 4 * Copyright (C) 2004, 2009, 2010 Texas Instruments Incorporated 5 * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com) 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 */ 11 #ifndef _ASM_C6X_CACHEFLUSH_H 12 #define _ASM_C6X_CACHEFLUSH_H 13 14 #include <linux/spinlock.h> 15 16 #include <asm/setup.h> 17 #include <asm/cache.h> 18 #include <asm/mman.h> 19 #include <asm/page.h> 20 #include <asm/string.h> 21 22 /* 23 * virtually-indexed cache management (our cache is physically indexed) 24 */ 25 #define flush_cache_all() do {} while (0) 26 #define flush_cache_mm(mm) do {} while (0) 27 #define flush_cache_dup_mm(mm) do {} while (0) 28 #define flush_cache_range(mm, start, end) do {} while (0) 29 #define flush_cache_page(vma, vmaddr, pfn) do {} while (0) 30 #define flush_cache_vmap(start, end) do {} while (0) 31 #define flush_cache_vunmap(start, end) do {} while (0) 32 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0 33 #define flush_dcache_page(page) do {} while (0) 34 #define flush_dcache_mmap_lock(mapping) do {} while (0) 35 #define flush_dcache_mmap_unlock(mapping) do {} while (0) 36 37 /* 38 * physically-indexed cache management 39 */ 40 #define flush_icache_range(s, e) \ 41 do { \ 42 L1D_cache_block_writeback((s), (e)); \ 43 L1P_cache_block_invalidate((s), (e)); \ 44 } while (0) 45 46 #define flush_icache_page(vma, page) \ 47 do { \ 48 if ((vma)->vm_flags & PROT_EXEC) \ 49 L1D_cache_block_writeback_invalidate(page_address(page), \ 50 (unsigned long) page_address(page) + PAGE_SIZE)); \ 51 L1P_cache_block_invalidate(page_address(page), \ 52 (unsigned long) page_address(page) + PAGE_SIZE)); \ 53 } while (0) 54 55 56 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ 57 do { \ 58 memcpy(dst, src, len); \ 59 flush_icache_range((unsigned) (dst), (unsigned) (dst) + (len)); \ 60 } while (0) 61 62 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ 63 memcpy(dst, src, len) 64 65 #endif /* _ASM_C6X_CACHEFLUSH_H */ 66
