This bug is first reported here: https://lore.kernel.org/lkml/1a620e7c-5b71-3d16-001a-0d79b292a...@amd.com/
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-boun...@lists.freedesktop.org> On Behalf Of Zhenneng Li Sent: Friday, March 10, 2023 3:40 PM To: Deucher, Alexander <alexander.deuc...@amd.com> Cc: David Airlie <airl...@linux.ie>; Pan, Xinhui <xinhui....@amd.com>; linux-ker...@vger.kernel.org; dri-de...@lists.freedesktop.org; Zhenneng Li <lizhenn...@kylinos.cn>; amd-gfx@lists.freedesktop.org; Daniel Vetter <dan...@ffwll.ch>; Koenig, Christian <christian.koe...@amd.com> 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
