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drm/amdgpu:fix wb_clear 

Properly shift the index when clearing so we clear
the right bit

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Monk Liu 2017-10-17 19:18:56 +08:00 committed by Alex Deucher
parent 6867e1b5fb
commit 63ae07ca4f
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
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@ -546,7 +546,7 @@ int amdgpu_wb_get(struct amdgpu_device *adev, u32 *wb)
if (offset < adev->wb.num_wb) {
__set_bit(offset, adev->wb.used);
*wb = offset * 8; /* convert to dw offset */
*wb = offset << 3; /* convert to dw offset */
return 0;
} else {
return -EINVAL;
@ -564,7 +564,7 @@ int amdgpu_wb_get(struct amdgpu_device *adev, u32 *wb)
void amdgpu_wb_free(struct amdgpu_device *adev, u32 wb)
{
if (wb < adev->wb.num_wb)
__clear_bit(wb, adev->wb.used);
__clear_bit(wb >> 3, adev->wb.used);
}
/**