forked from Minki/linux
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>
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@ -1424,13 +1424,7 @@ u32 r6xx_remap_render_backend(struct radeon_device *rdev,
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int r600_count_pipe_bits(uint32_t val)
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{
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int i, ret = 0;
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for (i = 0; i < 32; i++) {
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ret += val & 1;
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val >>= 1;
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}
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return ret;
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return hweight32(val);
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}
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static void r600_gpu_init(struct radeon_device *rdev)
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@ -721,12 +721,7 @@ static u32 r600_get_tile_pipe_to_backend_map(u32 num_tile_pipes,
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static int r600_count_pipe_bits(uint32_t val)
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{
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int i, ret = 0;
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for (i = 0; i < 32; i++) {
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ret += val & 1;
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val >>= 1;
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}
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return ret;
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return hweight32(val);
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}
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static void r600_gfx_init(struct drm_device *dev,
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