diff options
Diffstat (limited to 'arch/arm/include/asm/cacheflush.h')
| -rw-r--r-- | arch/arm/include/asm/cacheflush.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h index a160e0a9035c..b753d915e4df 100644 --- a/arch/arm/include/asm/cacheflush.h +++ b/arch/arm/include/asm/cacheflush.h @@ -114,6 +114,14 @@ //# endif #endif +#if defined(CONFIG_CPU_V7M) +# ifdef _CACHE +# error "Multi-cache not supported on ARMv7-M" +# else +# define _CACHE v7m +# endif +#endif + #if !defined(_CACHE) && !defined(MULTI_CACHE) #error Unknown cache maintainence model #endif @@ -234,6 +242,22 @@ extern struct cpu_cache_fns cpu_cache; #else +#ifdef CONFIG_CPU_V7M + +static inline void v7m_flush_kern_all(void) { } +static inline void v7m_flush_user_all(void) { } +static inline void v7m_flush_user_range(unsigned long a, unsigned long b, unsigned int c) { } + +static inline void v7m_coherent_kern_range(unsigned long a, unsigned long b) { } +static inline void v7m_coherent_user_range(unsigned long a, unsigned long b) { } +static inline void v7m_flush_kern_dcache_page(void *a) { } + +static inline void v7m_dma_inv_range(const void *a, const void *b) { } +static inline void v7m_dma_clean_range(const void *a, const void *b) { } +static inline void v7m_dma_flush_range(const void *a, const void *b) { } + +#endif + #define __cpuc_flush_kern_all __glue(_CACHE,_flush_kern_cache_all) #define __cpuc_flush_user_all __glue(_CACHE,_flush_user_cache_all) #define __cpuc_flush_user_range __glue(_CACHE,_flush_user_cache_range) @@ -264,6 +288,22 @@ extern void dmac_flush_range(const void *, const void *); #endif +#ifdef CONFIG_CPU_NO_CACHE_BCAST +enum smp_dma_cache_type { + SMP_DMA_CACHE_INV, + SMP_DMA_CACHE_CLEAN, + SMP_DMA_CACHE_FLUSH, +}; +extern void smp_dma_cache_op(int type, const void *start, const void *end); +#define smp_dma_inv_range(s, e) smp_dma_cache_op(SMP_DMA_CACHE_INV, s, e) +#define smp_dma_clean_range(s, e) smp_dma_cache_op(SMP_DMA_CACHE_CLEAN, s, e) +#define smp_dma_flush_range(s, e) smp_dma_cache_op(SMP_DMA_CACHE_FLUSH, s, e) +#else +#define smp_dma_inv_range dmac_inv_range +#define smp_dma_clean_range dmac_clean_range +#define smp_dma_flush_range dmac_flush_range +#endif + #ifdef CONFIG_OUTER_CACHE extern struct outer_cache_fns outer_cache; |