From 639f6571458948b5112be2cf00c0c2c04db2897d Mon Sep 17 00:00:00 2001 From: Bryan Wu Date: Wed, 27 Aug 2008 10:51:02 +0800 Subject: Blackfin arch: move include/asm-blackfin header files to arch/blackfin Signed-off-by: Bryan Wu --- arch/blackfin/include/asm/cacheflush.h | 90 ++++++++++++++++++++++++++++++++++ 1 file changed, 90 insertions(+) create mode 100644 arch/blackfin/include/asm/cacheflush.h (limited to 'arch/blackfin/include/asm/cacheflush.h') diff --git a/arch/blackfin/include/asm/cacheflush.h b/arch/blackfin/include/asm/cacheflush.h new file mode 100644 index 00000000000..d81a77545a0 --- /dev/null +++ b/arch/blackfin/include/asm/cacheflush.h @@ -0,0 +1,90 @@ +/* + * File: include/asm-blackfin/cacheflush.h + * Based on: include/asm-m68knommu/cacheflush.h + * Author: LG Soft India + * Copyright (C) 2004 Analog Devices Inc. + * Created: Tue Sep 21 2004 + * Description: Blackfin low-level cache routines adapted from the i386 + * and PPC versions by Greg Ungerer (gerg@snapgear.com) + * + * Modified: + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. + * If not, write to the Free Software Foundation, + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#ifndef _BLACKFIN_CACHEFLUSH_H +#define _BLACKFIN_CACHEFLUSH_H + +#include + +extern void blackfin_icache_dcache_flush_range(unsigned int, unsigned int); +extern void blackfin_icache_flush_range(unsigned int, unsigned int); +extern void blackfin_dcache_flush_range(unsigned int, unsigned int); +extern void blackfin_dcache_invalidate_range(unsigned int, unsigned int); +extern void blackfin_dflush_page(void *); + +#define flush_dcache_mmap_lock(mapping) do { } while (0) +#define flush_dcache_mmap_unlock(mapping) do { } while (0) +#define flush_cache_mm(mm) do { } while (0) +#define flush_cache_range(vma, start, end) do { } while (0) +#define flush_cache_page(vma, vmaddr) do { } while (0) +#define flush_cache_vmap(start, end) do { } while (0) +#define flush_cache_vunmap(start, end) do { } while (0) + +static inline void flush_icache_range(unsigned start, unsigned end) +{ +#if defined(CONFIG_BFIN_DCACHE) && defined(CONFIG_BFIN_ICACHE) + +# if defined(CONFIG_BFIN_WT) + blackfin_icache_flush_range((start), (end)); +# else + blackfin_icache_dcache_flush_range((start), (end)); +# endif + +#else + +# if defined(CONFIG_BFIN_ICACHE) + blackfin_icache_flush_range((start), (end)); +# endif +# if defined(CONFIG_BFIN_DCACHE) + blackfin_dcache_flush_range((start), (end)); +# endif + +#endif +} + +#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ +do { memcpy(dst, src, len); \ + flush_icache_range ((unsigned) (dst), (unsigned) (dst) + (len)); \ +} while (0) +#define copy_from_user_page(vma, page, vaddr, dst, src, len) memcpy(dst, src, len) + +#if defined(CONFIG_BFIN_DCACHE) +# define invalidate_dcache_range(start,end) blackfin_dcache_invalidate_range((start), (end)) +#else +# define invalidate_dcache_range(start,end) do { } while (0) +#endif +#if defined(CONFIG_BFIN_DCACHE) && defined(CONFIG_BFIN_WB) +# define flush_dcache_range(start,end) blackfin_dcache_flush_range((start), (end)) +# define flush_dcache_page(page) blackfin_dflush_page(page_address(page)) +#else +# define flush_dcache_range(start,end) do { } while (0) +# define flush_dcache_page(page) do { } while (0) +#endif + +#endif /* _BLACKFIN_ICACHEFLUSH_H */ -- cgit v1.2.3