Re: [PATCH] drm/amdgpu: resove reboot exception for si oland

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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



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