drm/amdgpu: avoid gfx register accessing during gfxoff

Make sure gfxoff is disabled before gfx register accessing.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
index 565d749..b6bb024 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v11_0.c
@@ -5097,6 +5097,8 @@ static void gfx_v11_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid)
 {
        u32 reg, data;
 
+       amdgpu_gfx_off_ctrl(adev, false);
+
        reg = SOC15_REG_OFFSET(GC, 0, regRLC_SPM_MC_CNTL);
        if (amdgpu_sriov_is_pp_one_vf(adev))
                data = RREG32_NO_KIQ(reg);
@@ -5110,6 +5112,8 @@ static void gfx_v11_0_update_spm_vmid(struct amdgpu_device *adev, unsigned vmid)
                WREG32_SOC15_NO_KIQ(GC, 0, regRLC_SPM_MC_CNTL, data);
        else
                WREG32_SOC15(GC, 0, regRLC_SPM_MC_CNTL, data);
+
+       amdgpu_gfx_off_ctrl(adev, true);
 }
 
 static const struct amdgpu_rlc_funcs gfx_v11_0_rlc_funcs = {