linux-stable/include/asm-m32r/cacheflush.h
Hirokazu Takata 9287d95ea1 [PATCH] m32r: Support M32104UT target platform
This patch is for supporting a new target platform, Renesas M32104UT
evaluation board.

The M32104UT is an eval board based on an uT-Engine specification.  This board
has an MMU-less M32R family processor, M32104.
http://www-wa0.personal-media.co.jp/pmc/archive/te/te_m32104_e.pdf

This board is one of the most popular M32R platform, so we have ported
Linux/M32R to it.

Signed-off-by: Naoto Sugai <Sugai.Naoto@ak.MitsubishiElectric.co.jp>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:43 -08:00

68 lines
2.9 KiB
C

#ifndef _ASM_M32R_CACHEFLUSH_H
#define _ASM_M32R_CACHEFLUSH_H
#include <linux/config.h>
#include <linux/mm.h>
extern void _flush_cache_all(void);
extern void _flush_cache_copyback_all(void);
#if defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_OPSP) || defined(CONFIG_CHIP_M32104)
#define flush_cache_all() 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, pfn) do { } while (0)
#define flush_dcache_page(page) do { } while (0)
#define flush_dcache_mmap_lock(mapping) do { } while (0)
#define flush_dcache_mmap_unlock(mapping) do { } while (0)
#ifndef CONFIG_SMP
#define flush_icache_range(start, end) _flush_cache_copyback_all()
#define flush_icache_page(vma,pg) _flush_cache_copyback_all()
#define flush_icache_user_range(vma,pg,adr,len) _flush_cache_copyback_all()
#define flush_cache_sigtramp(addr) _flush_cache_copyback_all()
#else /* CONFIG_SMP */
extern void smp_flush_cache_all(void);
#define flush_icache_range(start, end) smp_flush_cache_all()
#define flush_icache_page(vma,pg) smp_flush_cache_all()
#define flush_icache_user_range(vma,pg,adr,len) smp_flush_cache_all()
#define flush_cache_sigtramp(addr) _flush_cache_copyback_all()
#endif /* CONFIG_SMP */
#elif defined(CONFIG_CHIP_M32102)
#define flush_cache_all() 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, pfn) do { } while (0)
#define flush_dcache_page(page) do { } while (0)
#define flush_dcache_mmap_lock(mapping) do { } while (0)
#define flush_dcache_mmap_unlock(mapping) do { } while (0)
#define flush_icache_range(start, end) _flush_cache_all()
#define flush_icache_page(vma,pg) _flush_cache_all()
#define flush_icache_user_range(vma,pg,adr,len) _flush_cache_all()
#define flush_cache_sigtramp(addr) _flush_cache_all()
#else
#define flush_cache_all() 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, pfn) do { } while (0)
#define flush_dcache_page(page) do { } while (0)
#define flush_dcache_mmap_lock(mapping) do { } while (0)
#define flush_dcache_mmap_unlock(mapping) do { } while (0)
#define flush_icache_range(start, end) do { } while (0)
#define flush_icache_page(vma,pg) do { } while (0)
#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
#define flush_cache_sigtramp(addr) do { } while (0)
#endif /* CONFIG_CHIP_* */
#define flush_cache_vmap(start, end) do { } while (0)
#define flush_cache_vunmap(start, end) do { } while (0)
#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
do { \
memcpy(dst, src, len); \
flush_icache_user_range(vma, page, vaddr, len); \
} while (0)
#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
memcpy(dst, src, len)
#endif /* _ASM_M32R_CACHEFLUSH_H */