[PATCH AUTOSEL 5.6 38/79] drm/amd/powerplay: fix resume failed as smu table initialize early exit

Sasha Levin
2020-04-30T14:11:20Z

From: Prike Liang <Prike.Liang@amd.com>

[ Upstream commit 45a5e639548c459a5accebad340078e4e6e0e512 ]

When the amdgpu in the suspend/resume loop need notify the dpm disabled,
otherwise the smu table will be uninitialize and result in resume failed.

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Tested-by: Mengbing Wang <Mengbing.Wang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/amd/powerplay/renoir_ppt.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
index f7a1ce37227cd..4a52c310058d1 100644
--- a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
@@ -889,12 +889,17 @@ static int renoir_read_sensor(struct smu_context *smu,

static bool renoir_is_dpm_running(struct smu_context *smu)
{
+ struct amdgpu_device *adev = smu->adev;
+
/*
* Util now, the pmfw hasn't exported the interface of SMU
* feature mask to APU SKU so just force on all the feature
* at early initial stage.
*/
- return true;
+ if (adev->in_suspend)
+ return false;
+ else
+ return true;

}

--
2.20.1