1 files changed, 35 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4117-drm-amdgpu-Do-not-implement-power-on-for-SDMA-after-.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4117-drm-amdgpu-Do-not-implement-power-on-for-SDMA-after-.patch
new file mode 100644
index 00000000..3bdc66a4
--- /dev/null
+++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/4117-drm-amdgpu-Do-not-implement-power-on-for-SDMA-after-.patch
@@ -0,0 +1,35 @@
+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
+