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path: root/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c
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Diffstat (limited to 'drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c')
-rw-r--r--drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c29
1 files changed, 13 insertions, 16 deletions
diff --git a/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c b/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c
index cca9cf536f76..bbb9e411d21f 100644
--- a/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c
+++ b/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c
@@ -37,6 +37,15 @@ static long tlb_timeout_jiffies(struct xe_gt *gt)
return hw_tlb_timeout + 2 * delay;
}
+static void xe_gt_tlb_invalidation_fence_fini(struct xe_gt_tlb_invalidation_fence *fence)
+{
+ if (WARN_ON_ONCE(!fence->gt))
+ return;
+
+ xe_pm_runtime_put(gt_to_xe(fence->gt));
+ fence->gt = NULL; /* fini() should be called once */
+}
+
static void
__invalidation_fence_signal(struct xe_device *xe, struct xe_gt_tlb_invalidation_fence *fence)
{
@@ -204,7 +213,7 @@ static int send_tlb_invalidation(struct xe_guc *guc,
tlb_timeout_jiffies(gt));
}
spin_unlock_irq(&gt->tlb_invalidation.pending_lock);
- } else if (ret < 0) {
+ } else {
__invalidation_fence_signal(xe, fence);
}
if (!ret) {
@@ -267,10 +276,8 @@ int xe_gt_tlb_invalidation_ggtt(struct xe_gt *gt)
xe_gt_tlb_invalidation_fence_init(gt, &fence, true);
ret = xe_gt_tlb_invalidation_guc(gt, &fence);
- if (ret < 0) {
- xe_gt_tlb_invalidation_fence_fini(&fence);
+ if (ret)
return ret;
- }
xe_gt_tlb_invalidation_fence_wait(&fence);
} else if (xe_device_uc_enabled(xe) && !xe_device_wedged(xe)) {
@@ -496,7 +503,8 @@ static const struct dma_fence_ops invalidation_fence_ops = {
* @stack: fence is stack variable
*
* Initialize TLB invalidation fence for use. xe_gt_tlb_invalidation_fence_fini
- * must be called if fence is not signaled.
+ * will be automatically called when fence is signalled (all fences must signal),
+ * even on error.
*/
void xe_gt_tlb_invalidation_fence_init(struct xe_gt *gt,
struct xe_gt_tlb_invalidation_fence *fence,
@@ -516,14 +524,3 @@ void xe_gt_tlb_invalidation_fence_init(struct xe_gt *gt,
dma_fence_get(&fence->base);
fence->gt = gt;
}
-
-/**
- * xe_gt_tlb_invalidation_fence_fini - Finalize TLB invalidation fence
- * @fence: TLB invalidation fence to finalize
- *
- * Drop PM ref which fence took durinig init.
- */
-void xe_gt_tlb_invalidation_fence_fini(struct xe_gt_tlb_invalidation_fence *fence)
-{
- xe_pm_runtime_put(gt_to_xe(fence->gt));
-}