diff options
Diffstat (limited to 'drivers/edgetpu/edgetpu-mmu.h')
| -rw-r--r-- | drivers/edgetpu/edgetpu-mmu.h | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/edgetpu/edgetpu-mmu.h b/drivers/edgetpu/edgetpu-mmu.h index 29bf1a9..bff24c6 100644 --- a/drivers/edgetpu/edgetpu-mmu.h +++ b/drivers/edgetpu/edgetpu-mmu.h @@ -18,14 +18,14 @@ /* flags for MMU operations */ -/* Whether the TPU address to be allocated can be 64-bit wide. */ -#define EDGETPU_MMU_32 (0 << 0) -#define EDGETPU_MMU_64 (1 << 0) +/* Whether the TPU address allocated must be accessible to the control cluster. */ +#define EDGETPU_MMU_CC_ACCESS (0 << 0) +#define EDGETPU_MMU_CC_NO_ACCESS (1 << 0) /* The memory will be mapped to host DRAM or dma-buf. */ -#define EDGETPU_MMU_HOST (0 << 1) -#define EDGETPU_MMU_DMABUF (1 << 1) +#define EDGETPU_MMU_HOST (0 << 1) +#define EDGETPU_MMU_DMABUF (1 << 1) -#define EDGETPU_MMU_COHERENT (1 << 2) +#define EDGETPU_MMU_COHERENT (1 << 2) /* * The max possible value of token is (EDGETPU_DOMAIN_TOKEN_END - 1), which @@ -74,8 +74,8 @@ static inline u32 map_to_mmu_flags(edgetpu_map_flag_t flags) { u32 ret = 0; - ret |= (flags & EDGETPU_MAP_CPU_NONACCESSIBLE) ? EDGETPU_MMU_64 : - EDGETPU_MMU_32; + ret |= (flags & EDGETPU_MAP_CPU_NONACCESSIBLE) ? EDGETPU_MMU_CC_NO_ACCESS : + EDGETPU_MMU_CC_ACCESS; ret |= (flags & EDGETPU_MAP_COHERENT) ? EDGETPU_MMU_COHERENT : 0; return ret; } |