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drm/xe: Signal invalidation fence immediately if CT send fails

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This means we are in the middle of a GT reset and no need to do TLB
invalidation so just signal invalidation fence immediately.

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
This commit is contained in:
Matthew Brost 2023-01-26 10:05:53 -08:00 committed by Rodrigo Vivi
parent bae8ddae18
commit 9f9f09d407
1 changed files with 14 additions and 9 deletions
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23
drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c
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@ -69,6 +69,15 @@ int xe_gt_tlb_invalidation_init(struct xe_gt *gt)
return 0;
}
static void
invalidation_fence_signal(struct xe_gt_tlb_invalidation_fence *fence)
{
trace_xe_gt_tlb_invalidation_fence_signal(fence);
list_del(&fence->link);
dma_fence_signal(&fence->base);
dma_fence_put(&fence->base);
}
/**
* xe_gt_tlb_invalidation_reset - Initialize GT TLB invalidation reset
* @gt: graphics tile
@ -83,11 +92,8 @@ int xe_gt_tlb_invalidation_init(struct xe_gt *gt)
mutex_lock(&gt->uc.guc.ct.lock);
list_for_each_entry_safe(fence, next,
&gt->tlb_invalidation.pending_fences, link) {
list_del(&fence->link);
dma_fence_signal(&fence->base);
dma_fence_put(&fence->base);
}
&gt->tlb_invalidation.pending_fences, link)
invalidation_fence_signal(fence);
mutex_unlock(&gt->uc.guc.ct.lock);
}
@ -130,6 +136,8 @@ static int send_tlb_invalidation(struct xe_guc *guc,
}
if (!ret)
ret = seqno;
if (ret < 0 && fence)
invalidation_fence_signal(fence);
mutex_unlock(&guc->ct.lock);
return ret;
@ -321,16 +329,13 @@ int xe_guc_tlb_invalidation_done_handler(struct xe_guc *guc, u32 *msg, u32 len)
if (fence)
trace_xe_gt_tlb_invalidation_fence_recv(fence);
if (fence && tlb_invalidation_seqno_past(gt, fence->seqno)) {
trace_xe_gt_tlb_invalidation_fence_signal(fence);
list_del(&fence->link);
invalidation_fence_signal(fence);
if (!list_empty(&gt->tlb_invalidation.pending_fences))
mod_delayed_work(system_wq,
&gt->tlb_invalidation.fence_tdr,
TLB_TIMEOUT);
else
cancel_delayed_work(&gt->tlb_invalidation.fence_tdr);
dma_fence_signal(&fence->base);
dma_fence_put(&fence->base);
}
return 0;