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authorPrike Liang <Prike.Liang@amd.com>2020-04-07 15:21:26 +0300
committerAlex Deucher <alexander.deucher@amd.com>2020-04-09 00:51:03 +0300
commit487eca11a321ef33bcf4ca5adb3c0c4954db1b58 (patch)
tree9033afc7bf695b95b021973719d772325e0b2fba /drivers
parent72f5b5a308c744573fdbc6c78202c52196d2c162 (diff)
downloadlinux-487eca11a321ef33bcf4ca5adb3c0c4954db1b58.tar.xz
drm/amdgpu: fix gfx hang during suspend with video playback (v2)
The system will be hang up during S3 suspend because of SMU is pending for GC not respose the register CP_HQD_ACTIVE access request.This issue root cause of accessing the GC register under enter GFX CGGPG and can be fixed by disable GFX CGPG before perform suspend. v2: Use disable the GFX CGPG instead of RLC safe mode guard. Signed-off-by: Prike Liang <Prike.Liang@amd.com> Tested-by: Mengbing Wang <Mengbing.Wang@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_device.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index faa3e7102156..559dc24ef436 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2340,8 +2340,6 @@ static int amdgpu_device_ip_suspend_phase1(struct amdgpu_device *adev)
{
int i, r;
- amdgpu_device_set_pg_state(adev, AMD_PG_STATE_UNGATE);
- amdgpu_device_set_cg_state(adev, AMD_CG_STATE_UNGATE);
for (i = adev->num_ip_blocks - 1; i >= 0; i--) {
if (!adev->ip_blocks[i].status.valid)
@@ -3356,6 +3354,9 @@ int amdgpu_device_suspend(struct drm_device *dev, bool fbcon)
}
}
+ amdgpu_device_set_pg_state(adev, AMD_PG_STATE_UNGATE);
+ amdgpu_device_set_cg_state(adev, AMD_CG_STATE_UNGATE);
+
amdgpu_amdkfd_suspend(adev, !fbcon);
amdgpu_ras_suspend(adev);