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| author | Alex Deucher <alexander.deucher@amd.com> | 2017-06-06 17:41:20 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-06-07 00:04:35 -0400 |
| commit | 378506a7e600a025131df947a15f9bc23b522690 (patch) | |
| tree | ea8f7568e221efb57dfbbcfc82837b937cb11d8b /drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h | |
| parent | 943c05bdb53da273c43ec44eec37c6a70409b5e9 (diff) | |
| download | op-kernel-dev-378506a7e600a025131df947a15f9bc23b522690.zip op-kernel-dev-378506a7e600a025131df947a15f9bc23b522690.tar.gz | |
drm/amdgpu/gfx: create a common bitmask function (v2)
The same function was duplicated in all the gfx IPs. Use
a single implementation for all.
v2: use static inline (Alex Xie)
Reviewed-by: Alex Xie <AlexBin.Xie@amd.com>
Suggested-by: Andres Rodriguez <andresx7@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h index e0204408..2d846ef 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h @@ -30,4 +30,17 @@ void amdgpu_gfx_scratch_free(struct amdgpu_device *adev, uint32_t reg); void amdgpu_gfx_parse_disable_cu(unsigned *mask, unsigned max_se, unsigned max_sh); +/** + * amdgpu_gfx_create_bitmask - create a bitmask + * + * @bit_width: length of the mask + * + * create a variable length bit mask. + * Returns the bitmask. + */ +static inline u32 amdgpu_gfx_create_bitmask(u32 bit_width) +{ + return (u32)((1ULL << bit_width) - 1); +} + #endif |
