diff options
| author | Yong Zhao <Yong.Zhao@amd.com> | 2019-01-15 18:11:32 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-11-13 15:29:45 -0500 |
| commit | 29453755715cbecd1112e0b30260a5eb2e23f51c (patch) | |
| tree | 58ec6dd52fd5fb7a8f38127f4b8fd1108f38d633 /drivers/gpu/drm/amd/amdkfd/kfd_priv.h | |
| parent | 5d4634b5d4456a0c06f93e32616f7f4f6d23eecd (diff) | |
drm/amdkfd: Simplify the mmap offset related bit operations
The new code uses straightforward bit shifts and thus has better readability.
Signed-off-by: Yong Zhao <Yong.Zhao@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_priv.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index 161dbae737b6..3f7c3d651a52 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -59,24 +59,21 @@ * NOTE: struct vm_area_struct.vm_pgoff uses offset in pages. Hence, these * defines are w.r.t to PAGE_SIZE */ -#define KFD_MMAP_TYPE_SHIFT (62 - PAGE_SHIFT) +#define KFD_MMAP_TYPE_SHIFT 62 #define KFD_MMAP_TYPE_MASK (0x3ULL << KFD_MMAP_TYPE_SHIFT) #define KFD_MMAP_TYPE_DOORBELL (0x3ULL << KFD_MMAP_TYPE_SHIFT) #define KFD_MMAP_TYPE_EVENTS (0x2ULL << KFD_MMAP_TYPE_SHIFT) #define KFD_MMAP_TYPE_RESERVED_MEM (0x1ULL << KFD_MMAP_TYPE_SHIFT) #define KFD_MMAP_TYPE_MMIO (0x0ULL << KFD_MMAP_TYPE_SHIFT) -#define KFD_MMAP_GPU_ID_SHIFT (46 - PAGE_SHIFT) +#define KFD_MMAP_GPU_ID_SHIFT 46 #define KFD_MMAP_GPU_ID_MASK (((1ULL << KFD_GPU_ID_HASH_WIDTH) - 1) \ << KFD_MMAP_GPU_ID_SHIFT) #define KFD_MMAP_GPU_ID(gpu_id) ((((uint64_t)gpu_id) << KFD_MMAP_GPU_ID_SHIFT)\ & KFD_MMAP_GPU_ID_MASK) -#define KFD_MMAP_GPU_ID_GET(offset) ((offset & KFD_MMAP_GPU_ID_MASK) \ +#define KFD_MMAP_GET_GPU_ID(offset) ((offset & KFD_MMAP_GPU_ID_MASK) \ >> KFD_MMAP_GPU_ID_SHIFT) -#define KFD_MMAP_OFFSET_VALUE_MASK (0x3FFFFFFFFFFFULL >> PAGE_SHIFT) -#define KFD_MMAP_OFFSET_VALUE_GET(offset) (offset & KFD_MMAP_OFFSET_VALUE_MASK) - /* * When working with cp scheduler we should assign the HIQ manually or via * the amdgpu driver to a fixed hqd slot, here are the fixed HIQ hqd slot |