[AMD Official Use Only - General]
> -----Original Message-----
> From: Lazar, Lijo <lijo.la...@amd.com>
> Sent: Tuesday, March 14, 2023 5:07 PM
> To: Chen, Guchun <guchun.c...@amd.com>; Zhenneng Li
> <lizhenn...@kylinos.cn>
> Cc: David Airlie <airl...@linux.ie>; Pan, Xinhui <xinhui....@amd.com>;
> amd-gfx@lists.freedesktop.org; Daniel Vetter <dan...@ffwll.ch>; Deucher,
> Alexander <alexander.deuc...@amd.com>; Koenig, Christian
> <christian.koe...@amd.com>
> Subject: RE: [PATCH v2] drm/amdgpu: resove reboot exception for si oland
>
> [AMD Official Use Only - General]
>
> Hi Guchun,
>
> This patch doesn't look correct. Without dpm enabled, temperature range
> shouldn't be set at all. The patch posted by Zhenneng is good enough or
> better to skip late init altogether as it remains an empty function with that
> patch.
My intention is to prevent setting temperature range again in late_init, as in
hw_init prior to late_init, we have configured this range and set dpm_enabled
to true already. Also this is a draft patch:)
Leaving a NULL function in late_init looks good to me.
Regards,
Guchun
> Thanks,
> Lijo
>
> -----Original Message-----
> From: amd-gfx <amd-gfx-boun...@lists.freedesktop.org> On Behalf Of Chen,
> Guchun
> Sent: Tuesday, March 14, 2023 6:35 AM
> To: Zhenneng Li <lizhenn...@kylinos.cn>
> Cc: David Airlie <airl...@linux.ie>; Pan, Xinhui <xinhui....@amd.com>;
> amd-gfx@lists.freedesktop.org; Daniel Vetter <dan...@ffwll.ch>; Deucher,
> Alexander <alexander.deuc...@amd.com>; Koenig, Christian
> <christian.koe...@amd.com>
> Subject: RE: [PATCH v2] drm/amdgpu: resove reboot exception for si oland
>
> Will attached patch help?
>
> Regards,
> Guchun
>
> > -----Original Message-----
> > From: Zhenneng Li <lizhenn...@kylinos.cn>
> > Sent: Monday, March 13, 2023 10:57 AM
> > To: Chen, Guchun <guchun.c...@amd.com>
> > Cc: Deucher, Alexander <alexander.deuc...@amd.com>; Koenig, Christian
> > <christian.koe...@amd.com>; Pan, Xinhui <xinhui....@amd.com>; David
> > Airlie <airl...@linux.ie>; Daniel Vetter <dan...@ffwll.ch>; amd-
> > g...@lists.freedesktop.org; Zhenneng Li <lizhenn...@kylinos.cn>
> > Subject: [PATCH v2] 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 | 12 ------------
> > 1 file changed, 12 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..ca9bce895dbe 100644
> > --- a/drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c
> > +++ b/drivers/gpu/drm/amd/pm/legacy-dpm/si_dpm.c
> > @@ -7626,18 +7626,6 @@ static int si_dpm_process_interrupt(struct
> > amdgpu_device *adev,
> >
> > static int si_dpm_late_init(void *handle) {
> > - int ret;
> > - struct amdgpu_device *adev = (struct amdgpu_device *)handle;
> > -
> > - if (!adev->pm.dpm_enabled)
> > - return 0;
> > -
> > - ret = si_set_temperature_range(adev);
> > - if (ret)
> > - return ret;
> > -#if 0 //TODO ?
> > - si_dpm_powergate_uvd(adev, true);
> > -#endif
> > return 0;
> > }
> >
> > --
> > 2.25.1
