[Intel-gfx] [PATCH] drm/i915: Flush async power domains on probe failure

[Jani Nikula]

On Fri, 10 Apr 2020, "Souza, Jose" <jose.souza at intel.com> wrote:
> On Fri, 2020-04-10 at 15:43 +0100, Chris Wilson wrote:
>> Flush the async power domain work after aborting the module probe:
>> 
>> <3> [307.785552] ODEBUG: free active (active state 0) object type:
>> timer_list hint: intel_display_power_put_async_work+0x0/0xf0 [i915]
>> 
>> Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/1647
>> Fixes: b664259f3fe2 ("drm/i915: split i915_driver_modeset_probe() to
>> pre/post irq install")
>> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
>> Cc: Jani Nikula <jani.nikula at intel.com>
>> Cc: Ville Syrjälä <ville.syrjala at linux.intel.com>
>> Cc: Imre Deak <imre.deak at intel.com>
>> ---
>>  drivers/gpu/drm/i915/i915_drv.c | 1 +
>>  1 file changed, 1 insertion(+)
>> 
>> diff --git a/drivers/gpu/drm/i915/i915_drv.c
>> b/drivers/gpu/drm/i915/i915_drv.c
>> index a7a3b4b98572..13c1ce244092 100644
>> --- a/drivers/gpu/drm/i915/i915_drv.c
>> +++ b/drivers/gpu/drm/i915/i915_drv.c
>> @@ -996,6 +996,7 @@ int i915_driver_probe(struct pci_dev *pdev, const
>> struct pci_device_id *ent)
>>  out_cleanup_modeset:
>>  	/* FIXME */
>>  out_cleanup_hw:
>> +	intel_power_domains_driver_remove(i915);
>
> If the failure happened in the first two returns of
> i915_driver_modeset_probe_noirq() no call to
> intel_power_domains_init_hw() would be made.
>
> I'm also working on this, will send to ML after a round on trybot:
> https://patchwork.freedesktop.org/patch/361053/?series=75816&rev=1

Also https://patchwork.freedesktop.org/series/74021/

BR,
Jani.


>
>>  	i915_driver_hw_remove(i915);
>>  	intel_memory_regions_driver_release(i915);
>>  	i915_ggtt_driver_release(i915);

-- 
Jani Nikula, Intel Open Source Graphics Center