drm/amdgpu: fix the clearing wb size

The clearing wb size should be the one that it is assigned.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index a3a105e..de0cf33 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -475,7 +475,7 @@ static int amdgpu_wb_init(struct amdgpu_device *adev)
        int r;
 
        if (adev->wb.wb_obj == NULL) {
-               r = amdgpu_bo_create_kernel(adev, AMDGPU_MAX_WB * 4,
+               r = amdgpu_bo_create_kernel(adev, AMDGPU_MAX_WB * sizeof(uint32_t),
                                            PAGE_SIZE, AMDGPU_GEM_DOMAIN_GTT,
                                            &adev->wb.wb_obj, &adev->wb.gpu_addr,
                                            (void **)&adev->wb.wb);
@@ -488,7 +488,7 @@ static int amdgpu_wb_init(struct amdgpu_device *adev)
                memset(&adev->wb.used, 0, sizeof(adev->wb.used));
 
                /* clear wb memory */
-               memset((char *)adev->wb.wb, 0, AMDGPU_GPU_PAGE_SIZE);
+               memset((char *)adev->wb.wb, 0, AMDGPU_MAX_WB * sizeof(uint32_t));
        }
 
        return 0;