From: "Chang, Yu bruce" <yu.bruce.chang@intel.com>
To: "Brost, Matthew" <matthew.brost@intel.com>
Cc: "intel-xe@lists.freedesktop.org" <intel-xe@lists.freedesktop.org>
Subject: Re: [Intel-xe] [PATCH] drm/xe: don't auto fall back to execlist mode if guc failed to init
Date: Thu, 23 Mar 2023 23:08:58 +0000 [thread overview]
Message-ID: <PH8PR11MB6950295C09940BD29EE7EF52C3879@PH8PR11MB6950.namprd11.prod.outlook.com> (raw)
In-Reply-To: <ZBzYPLlnwL86qo0d@DUT025-TGLU.fm.intel.com>
> -----Original Message-----
> From: Brost, Matthew <matthew.brost@intel.com>
> Sent: Thursday, March 23, 2023 3:53 PM
> To: Chang, Yu bruce <yu.bruce.chang@intel.com>
> Cc: intel-xe@lists.freedesktop.org
> Subject: Re: [Intel-xe] [PATCH] drm/xe: don't auto fall back to execlist mode
> if guc failed to init
>
> On Thu, Mar 23, 2023 at 08:23:13PM +0000, Chang, Bruce wrote:
> > In general, this is due to FW load failure, should just report error
> > and fail the probe so that user can easily retry again.
> >
> > Cc: Matt Roper <matthew.d.roper@intel.com>
> > Signed-off-by: Bruce Chang <yu.bruce.chang@intel.com>
>
> I have not tested this but assuming you did:
> Reviewed-by: Matthew Brost <matthew.brost@intel.com>
>
Yes, I tested on PVC and it used to fall back to execlist mode and constantly
print out EXECLIST_STATUS. Now all those are not showing after this change.
There is still other unrelated issues during __pfx_ggtt_fini_noalloc, and need
to be fixed as below.
[ 223.839894] BUG: KASAN: null-ptr-deref in ttm_resource_free+0xe4/0x140 [ttm]
[ 223.847211] Read of size 8 at addr 0000000000000018 by task systemd-udevd/566
[ 223.856141] CPU: 0 PID: 566 Comm: systemd-udevd Not tainted 6.2.0-xe+ #4
[ 223.864921] Hardware name: Intel Corporation WilsonCity/WilsonCity, BIOS WLYDCRB1.SYS.0020.P84.2103030140 03/03/2021
[ 223.877365] Call Trace:
[ 223.881707] <TASK>
[ 223.885658] dump_stack_lvl+0x5b/0x85
[ 223.891200] print_report+0x499/0x4aa
[ 223.896690] ? ttm_resource_free+0xe4/0x140 [ttm]
[ 223.903268] kasan_report+0x99/0x1a0
[ 223.908683] ? ttm_resource_free+0xe4/0x140 [ttm]
[ 223.915210] ttm_resource_free+0xe4/0x140 [ttm]
[ 223.921621] ttm_bo_release+0x3e5/0x550 [ttm]
[ 223.927811] ? __pfx_ttm_bo_release+0x10/0x10 [ttm]
[ 223.934530] ? ttm_bo_kunmap+0x11f/0x160 [ttm]
[ 223.940775] ? __pfx_ggtt_fini_noalloc+0x10/0x10 [xe]
> > ---
> > drivers/gpu/drm/xe/xe_gt.c | 4 ++--
> > drivers/gpu/drm/xe/xe_uc.c | 3 ---
> > 2 files changed, 2 insertions(+), 5 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/xe/xe_gt.c b/drivers/gpu/drm/xe/xe_gt.c
> > index daa433d0f2f5..8a436c95591e 100644
> > --- a/drivers/gpu/drm/xe/xe_gt.c
> > +++ b/drivers/gpu/drm/xe/xe_gt.c
> > @@ -455,9 +455,9 @@ static int gt_fw_domain_init(struct xe_gt *gt)
> > goto err_force_wake;
> > }
> >
> > - /* Allow driver to load if uC init fails (likely missing firmware) */
> > err = xe_uc_init(>->uc);
> > - XE_WARN_ON(err);
> > + if (err)
> > + goto err_force_wake;
> >
> > err = xe_uc_init_hwconfig(>->uc);
> > if (err)
> > diff --git a/drivers/gpu/drm/xe/xe_uc.c b/drivers/gpu/drm/xe/xe_uc.c
> > index 4ccf2b3435e1..70eabf567156 100644
> > --- a/drivers/gpu/drm/xe/xe_uc.c
> > +++ b/drivers/gpu/drm/xe/xe_uc.c
> > @@ -54,9 +54,6 @@ int xe_uc_init(struct xe_uc *uc)
> > return 0;
> >
> > err:
> > - /* If any uC firmwares not found, fall back to execlists */
> > - xe_device_guc_submission_disable(uc_to_xe(uc));
> > -
> > return ret;
> > }
> >
> > --
> > 2.25.1
> >
next prev parent reply other threads:[~2023-03-23 23:09 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-23 20:23 [Intel-xe] [PATCH] drm/xe: don't auto fall back to execlist mode if guc failed to init Chang, Bruce
2023-03-23 20:25 ` [Intel-xe] ✓ CI.Patch_applied: success for " Patchwork
2023-03-23 20:26 ` [Intel-xe] ✓ CI.KUnit: " Patchwork
2023-03-23 20:30 ` [Intel-xe] ✓ CI.Build: " Patchwork
2023-03-23 20:52 ` [Intel-xe] ○ CI.BAT: info " Patchwork
2023-03-23 22:52 ` [Intel-xe] [PATCH] " Matthew Brost
2023-03-23 23:08 ` Chang, Yu bruce [this message]
2023-03-24 7:37 ` Mauro Carvalho Chehab
2023-03-24 15:15 ` Lucas De Marchi
2023-03-24 16:15 ` Rodrigo Vivi
2023-03-29 19:13 ` Rodrigo Vivi
2023-03-29 20:00 ` Chang, Yu bruce
2023-03-29 20:11 ` Rodrigo Vivi
2023-03-29 20:16 ` Chang, Yu bruce
2023-03-24 7:14 ` Lucas De Marchi
2023-03-24 15:57 ` Chang, Yu bruce
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