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drm/xe: Use dma_fence_check_and_signal_locked()

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Xe is one of the few users utilizing the return code of
dma_fence_signal() to check whether a fence had already been signaled by
someone else.

To clean up and simplify the dma_fence API, the few kernel users relying
on that behavior shall be ported to an alternative function.

Replace dma_fence_signal_locked() with
dma_fence_check_and_signal_locked().

Acked-by: Christian König <christian.koenig@amd.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Philipp Stanner <phasta@kernel.org>
Link: https://patch.msgid.link/20251201105011.19386-6-phasta@kernel.org
This commit is contained in:
Philipp Stanner 2025-12-01 11:50:08 +01:00
parent 06bc18e0de
commit dbcd754b84
1 changed files with 1 additions and 3 deletions
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4
drivers/gpu/drm/xe/xe_hw_fence.c
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@ -85,7 +85,6 @@ void xe_hw_fence_irq_finish(struct xe_hw_fence_irq *irq)
{
struct xe_hw_fence *fence, *next;
unsigned long flags;
int err;
bool tmp;
if (XE_WARN_ON(!list_empty(&irq->pending))) {
@ -93,9 +92,8 @@ void xe_hw_fence_irq_finish(struct xe_hw_fence_irq *irq)
spin_lock_irqsave(&irq->lock, flags);
list_for_each_entry_safe(fence, next, &irq->pending, irq_link) {
list_del_init(&fence->irq_link);
err = dma_fence_signal_locked(&fence->dma);
XE_WARN_ON(dma_fence_check_and_signal_locked(&fence->dma));
dma_fence_put(&fence->dma);
XE_WARN_ON(err);
}
spin_unlock_irqrestore(&irq->lock, flags);
dma_fence_end_signalling(tmp);