GFX_CLEAR        5095 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c 		tmp = REG_SET_FIELD(tmp, GMCON_DEBUG, GFX_CLEAR, 1);
GFX_CLEAR        5131 drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c 		tmp = REG_SET_FIELD(tmp, GMCON_DEBUG, GFX_CLEAR, 0);