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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2012-11-09 12:10:41 +0000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-11-20 16:06:18 +1000 |
| commit | ef8cf3a1c523afa499d15856e7db3844ad59d1fb (patch) | |
| tree | 998f1c1afed540a6df8c8f61d5f58e32f70d9665 /drivers | |
| parent | 6311803b1294432ee680fec5e628efae0d485fa2 (diff) | |
| download | linux-stable-ef8cf3a1c523afa499d15856e7db3844ad59d1fb.tar.gz linux-stable-ef8cf3a1c523afa499d15856e7db3844ad59d1fb.tar.bz2 linux-stable-ef8cf3a1c523afa499d15856e7db3844ad59d1fb.zip | |
drm/radeon: Use hweight32
Use hweight32 instead of counting for each bit
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: David Airlie <airlied@linux.ie>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/radeon/r600.c | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/r600_cp.c | 7 |
2 files changed, 2 insertions, 13 deletions
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index cda280d157da..169ecc9628ea 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -1424,13 +1424,7 @@ u32 r6xx_remap_render_backend(struct radeon_device *rdev, int r600_count_pipe_bits(uint32_t val) { - int i, ret = 0; - - for (i = 0; i < 32; i++) { - ret += val & 1; - val >>= 1; - } - return ret; + return hweight32(val); } static void r600_gpu_init(struct radeon_device *rdev) diff --git a/drivers/gpu/drm/radeon/r600_cp.c b/drivers/gpu/drm/radeon/r600_cp.c index 2514123d2d00..be85f75aedda 100644 --- a/drivers/gpu/drm/radeon/r600_cp.c +++ b/drivers/gpu/drm/radeon/r600_cp.c @@ -721,12 +721,7 @@ static u32 r600_get_tile_pipe_to_backend_map(u32 num_tile_pipes, static int r600_count_pipe_bits(uint32_t val) { - int i, ret = 0; - for (i = 0; i < 32; i++) { - ret += val & 1; - val >>= 1; - } - return ret; + return hweight32(val); } static void r600_gfx_init(struct drm_device *dev, |