The patch below does not apply to the 5.2-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From ee006eb00a00198d21dad60696318fd443a59f88 Mon Sep 17 00:00:00 2001
From: Lyude Paul <lyude@xxxxxxxxxx>
Date: Thu, 20 Jun 2019 19:21:26 -0400
Subject: [PATCH] drm/amdgpu: Don't skip display settings in hwmgr_resume()
I'm not entirely sure why this is, but for some reason:
921935dc6404 ("drm/amd/powerplay: enforce display related settings only on needed")
Breaks runtime PM resume on the Radeon PRO WX 3100 (Lexa) in one the
pre-production laptops I have. The issue manifests as the following
messages in dmesg:
[drm] UVD and UVD ENC initialized successfully.
amdgpu 0000:3b:00.0: [drm:amdgpu_ring_test_helper [amdgpu]] *ERROR* ring vce1 test failed (-110)
[drm:amdgpu_device_ip_resume_phase2 [amdgpu]] *ERROR* resume of IP block <vce_v3_0> failed -110
[drm:amdgpu_device_resume [amdgpu]] *ERROR* amdgpu_device_ip_resume failed (-110).
And happens after about 6-10 runtime PM suspend/resume cycles (sometimes
sooner, if you're lucky!). Unfortunately I can't seem to pin down
precisely which part in psm_adjust_power_state_dynamic that is causing
the issue, but not skipping the display setting setup seems to fix it.
Hopefully if there is a better fix for this, this patch will spark
discussion around it.
Fixes: 921935dc6404 ("drm/amd/powerplay: enforce display related settings only on needed")
Cc: Evan Quan <evan.quan@xxxxxxx>
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: Huang Rui <ray.huang@xxxxxxx>
Cc: Rex Zhu <Rex.Zhu@xxxxxxx>
Cc: Likun Gao <Likun.Gao@xxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> # v5.1+
Signed-off-by: Lyude Paul <lyude@xxxxxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
index 0b0d83c2a678..a24beaa4fb01 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
@@ -327,7 +327,7 @@ int hwmgr_resume(struct pp_hwmgr *hwmgr)
if (ret)
return ret;
- ret = psm_adjust_power_state_dynamic(hwmgr, true, NULL);
+ ret = psm_adjust_power_state_dynamic(hwmgr, false, NULL);
return ret;
}
