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From a6ee800e9b828b18b24f685e85de0aa79ee36fcb Mon Sep 17 00:00:00 2001
From: chen gong <curry.gong@amd.com>
Date: Sun, 29 Sep 2019 10:58:43 +0800
Subject: [PATCH 4117/4736] 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>
---
drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
index 26f13de35b2c..78e21c12c17a 100644
--- 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))
--
2.17.1
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