diff options
Diffstat (limited to 'drivers/edgetpu/edgetpu-mmu.h')
| -rw-r--r-- | drivers/edgetpu/edgetpu-mmu.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/edgetpu/edgetpu-mmu.h b/drivers/edgetpu/edgetpu-mmu.h index 7cc9ffa..812a05c 100644 --- a/drivers/edgetpu/edgetpu-mmu.h +++ b/drivers/edgetpu/edgetpu-mmu.h @@ -37,6 +37,8 @@ #define EDGETPU_MMU_DEVICE (1 << 2) #define EDGETPU_MMU_DMABUF (2 << 2) +#define EDGETPU_MMU_COHERENT (1 << 4) + /* * The max possible value of token is (EDGETPU_DOMAIN_TOKEN_END - 1), which * shouldn't equal or exceed the bit mask EDGETPU_CONTEXT_DOMAIN_TOKEN. @@ -75,6 +77,11 @@ edgetpu_host_dma_dir(enum dma_data_direction target_dir) } } +static inline enum dma_data_direction map_flag_to_host_dma_dir(edgetpu_map_flag_t flags) +{ + return edgetpu_host_dma_dir(flags & EDGETPU_MAP_DIR_MASK); +} + static inline u32 map_to_mmu_flags(edgetpu_map_flag_t flags) { u32 ret = 0; @@ -82,6 +89,7 @@ static inline u32 map_to_mmu_flags(edgetpu_map_flag_t flags) ret |= IS_MIRRORED(flags) ? EDGETPU_MMU_VDG : EDGETPU_MMU_DIE; ret |= (flags & EDGETPU_MAP_CPU_NONACCESSIBLE) ? EDGETPU_MMU_64 : EDGETPU_MMU_32; + ret |= (flags & EDGETPU_MAP_COHERENT) ? EDGETPU_MMU_COHERENT : 0; return ret; } @@ -145,7 +153,7 @@ void edgetpu_mmu_unmap(struct edgetpu_dev *dev, struct edgetpu_mapping *map, */ int edgetpu_mmu_map_iova_sgt(struct edgetpu_dev *etdev, tpu_addr_t iova, struct sg_table *sgt, enum dma_data_direction dir, - enum edgetpu_context_id context_id); + u32 mmu_flags, enum edgetpu_context_id context_id); void edgetpu_mmu_unmap_iova_sgt_attrs(struct edgetpu_dev *etdev, tpu_addr_t iova, struct sg_table *sgt, enum dma_data_direction dir, |