drm/amdgpu: Do not implement power-on for SDMA after do mode2 reset on Renoir

Find that ring sdma0 test failed if turn on SDMA powergating after do
mode2 reset.

Perhaps the mode2 reset does not reset the SDMA PG state, SDMA is
already powered up so there is no need to ask the SMU to power it up
again. So I skip this function for a moment.

Signed-off-by: chen gong <curry.gong@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/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
index 96581b5b0a8a8282b8de65bec69622a64a423fc1..4fb9f19298096ee4d8809d7290a3c33a87377235 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
@@ -1792,7 +1792,7 @@ static int sdma_v4_0_hw_init(void *handle)
 
        if ((adev->asic_type == CHIP_RAVEN && adev->powerplay.pp_funcs &&
                        adev->powerplay.pp_funcs->set_powergating_by_smu) ||
-                       adev->asic_type == CHIP_RENOIR)
+                       (adev->asic_type == CHIP_RENOIR && !adev->in_gpu_reset))
                amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_SDMA, false);
 
        if (!amdgpu_sriov_vf(adev))