diff options
author | fishsoupisgood <github@madingley.org> | 2019-04-29 01:17:54 +0100 |
---|---|---|
committer | fishsoupisgood <github@madingley.org> | 2019-05-27 03:43:43 +0100 |
commit | 3f2546b2ef55b661fd8dd69682b38992225e86f6 (patch) | |
tree | 65ca85f13617aee1dce474596800950f266a456c /roms/u-boot/arch/sh/include/asm/cache.h | |
download | qemu-master.tar.gz qemu-master.tar.bz2 qemu-master.zip |
Diffstat (limited to 'roms/u-boot/arch/sh/include/asm/cache.h')
-rw-r--r-- | roms/u-boot/arch/sh/include/asm/cache.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/roms/u-boot/arch/sh/include/asm/cache.h b/roms/u-boot/arch/sh/include/asm/cache.h new file mode 100644 index 00000000..0698a377 --- /dev/null +++ b/roms/u-boot/arch/sh/include/asm/cache.h @@ -0,0 +1,31 @@ +#ifndef __ASM_SH_CACHE_H +#define __ASM_SH_CACHE_H + +#if defined(CONFIG_SH4) + +int cache_control(unsigned int cmd); + +#define L1_CACHE_BYTES 32 + +struct __large_struct { unsigned long buf[100]; }; +#define __m(x) (*(struct __large_struct *)(x)) + +#else + +/* + * 32-bytes is the largest L1 data cache line size for SH the architecture. So + * it is a safe default for DMA alignment. + */ +#define ARCH_DMA_MINALIGN 32 + +#endif /* CONFIG_SH4 */ + +/* + * Use the L1 data cache line size value for the minimum DMA buffer alignment + * on SH. + */ +#ifndef ARCH_DMA_MINALIGN +#define ARCH_DMA_MINALIGN L1_CACHE_BYTES +#endif + +#endif /* __ASM_SH_CACHE_H */ |