[RFC v2 01/13] drm/i915: Use provided dma_fence_is_chain

[Tvrtko Ursulin]

On 12/05/2025 09:05, Christian König wrote:
> On 5/9/25 17:47, Matthew Brost wrote:
>> On Fri, May 09, 2025 at 04:33:40PM +0100, Tvrtko Ursulin wrote:
>>> Replace open-coded helper with the subsystem one.
>>>
>>
>> You probably can just send this one by itself as it good cleanup and
>> independent.
>>
>> Reviewed-by: Matthew Brost <matthew.brost at intel.com>
> 
> Reviewed-by: Christian König <christian.koenig at amd.com>
> 
> Any objections that I start to push those patches to drm-misc-next or do you want to take this one through the i915 branch?

I think it will depend on timing. If this series gets stalled, or gets 
rejected, I will push this cleanup patch to i915. But if things will be 
looking positive to merge more of this series, then it is much simpler 
to take everything via drm-misc-next and avoid branch dependencies.

Regards,

Tvrtko

>>> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at igalia.com>
>>> ---
>>>   drivers/gpu/drm/i915/gem/i915_gem_wait.c | 7 +------
>>>   1 file changed, 1 insertion(+), 6 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_wait.c b/drivers/gpu/drm/i915/gem/i915_gem_wait.c
>>> index 7127e90c1a8f..991666fd9f85 100644
>>> --- a/drivers/gpu/drm/i915/gem/i915_gem_wait.c
>>> +++ b/drivers/gpu/drm/i915/gem/i915_gem_wait.c
>>> @@ -106,11 +106,6 @@ static void fence_set_priority(struct dma_fence *fence,
>>>   	rcu_read_unlock();
>>>   }
>>>   
>>> -static inline bool __dma_fence_is_chain(const struct dma_fence *fence)
>>> -{
>>> -	return fence->ops == &dma_fence_chain_ops;
>>> -}
>>> -
>>>   void i915_gem_fence_wait_priority(struct dma_fence *fence,
>>>   				  const struct i915_sched_attr *attr)
>>>   {
>>> @@ -126,7 +121,7 @@ void i915_gem_fence_wait_priority(struct dma_fence *fence,
>>>   
>>>   		for (i = 0; i < array->num_fences; i++)
>>>   			fence_set_priority(array->fences[i], attr);
>>> -	} else if (__dma_fence_is_chain(fence)) {
>>> +	} else if (dma_fence_is_chain(fence)) {
>>>   		struct dma_fence *iter;
>>>   
>>>   		/* The chain is ordered; if we boost the last, we boost all */
>>> -- 
>>> 2.48.0
>>>
>