diff options
| 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/gpu/drm/radeon/r600_cp.c | |
| parent | drm: use memchr_inv() (diff) | |
| download | linux-dev-ef8cf3a1c523afa499d15856e7db3844ad59d1fb.tar.xz linux-dev-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/gpu/drm/radeon/r600_cp.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/r600_cp.c | 7 |
1 files changed, 1 insertions, 6 deletions
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, |