drm/amd/amdgpu: Simplify gfx_v9_0_wait_for_idle()

Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index 2ba02739a2280be6639409b2576d01516befd21d..a21182debb3d91d6a5a95f9ebc1753510abe7936 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -2937,15 +2937,10 @@ static bool gfx_v9_0_is_idle(void *handle)
 static int gfx_v9_0_wait_for_idle(void *handle)
 {
        unsigned i;
-       u32 tmp;
        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
        for (i = 0; i < adev->usec_timeout; i++) {
-               /* read MC_STATUS */
-               tmp = RREG32_SOC15(GC, 0, mmGRBM_STATUS) &
-                       GRBM_STATUS__GUI_ACTIVE_MASK;
-
-               if (!REG_GET_FIELD(tmp, GRBM_STATUS, GUI_ACTIVE))
+               if (gfx_v9_0_is_idle(handle))
                        return 0;
                udelay(1);
        }