This bug is first reported here:
https://lore.kernel.org/lkml/1a620e7c-5b71-3d16-001a-0d79b292aca7@xxxxxxx/
I modify the patch accroding mail list's discusstion, and I do reboot
test for tens of thousands of times about 10 machines on arm64, there's
no bug reported.
在 2023/3/10 16:18, Chen, Guchun 写道:
-----Original Message-----
From: amd-gfx <amd-gfx-bounces@xxxxxxxxxxxxxxxxxxxxx> On Behalf Of
Zhenneng Li
Sent: Friday, March 10, 2023 3:40 PM
To: Deucher, Alexander <Alexander.Deucher@xxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>; Pan, Xinhui <Xinhui.Pan@xxxxxxx>;
linux-kernel@xxxxxxxxxxxxxxx; dri-devel@xxxxxxxxxxxxxxxxxxxxx; Zhenneng Li
<lizhenneng@xxxxxxxxxx>; amd-gfx@xxxxxxxxxxxxxxxxxxxxx; Daniel Vetter
<daniel@xxxxxxxx>; Koenig, Christian <Christian.Koenig@xxxxxxx>
Subject: [PATCH] drm/amdgpu: resove reboot exception for si oland
During reboot test on arm64 platform, it may failure on boot.
The error message are as follows:
[ 6.996395][ 7] [ T295] [drm:amdgpu_device_ip_late_init [amdgpu]]
*ERROR*
late_init of IP block <si_dpm> failed -22
[ 7.006919][ 7] [ T295] amdgpu 0000:04:00.0: amdgpu_device_ip_late_init
failed
[ 7.014224][ 7] [ T295] amdgpu 0000:04:00.0: Fatal error during GPU init
---
drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c
b/drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c
index d6d9e3b1b2c0..dee51c757ac0 100644
--- a/drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c
+++ b/drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c
@@ -7632,9 +7632,6 @@ static int si_dpm_late_init(void *handle)
if (!adev->pm.dpm_enabled)
return 0;
- ret = si_set_temperature_range(adev);
- if (ret)
- return ret;
si_set_temperature_range should be platform agnostic. Can you please elaborate more?
Regards,
Guchun
#if 0 //TODO ?
si_dpm_powergate_uvd(adev, true);
#endif
--
2.25.1
