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From: Philipp Stanner <phasta@kernel.org>
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Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
	linux-media@vger.kernel.org, amd-gfx@lists.freedesktop.org,
	etnaviv@lists.freedesktop.org, intel-gfx@lists.freedesktop.org,
	imagination@lists.freedesktop.org, lima@lists.freedesktop.org,
	linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org,
	nouveau@lists.freedesktop.org, virtualization@lists.linux.dev,
	spice-devel@lists.freedesktop.org,
	intel-xe@lists.freedesktop.org, linux-tegra@vger.kernel.org,
	linux-iio@vger.kernel.org, linux-usb@vger.kernel.org
Subject: [RFC PATCH 3/6] dma-buf: Port users of dma_fence_init64()
Date: Thu, 29 Oct 2026 10:55:40 +0100	[thread overview]
Message-ID: <20261029095542.1526750-6-phasta@kernel.org> (raw)
In-Reply-To: <20261029095542.1526750-3-phasta@kernel.org>

dma_fence_init() now natively allows for selecting 64-bit seqno support.
Port all users of dma_fence_init64() to this unified method.

Signed-off-by: Philipp Stanner <phasta@kernel.org>
---
 drivers/dma-buf/dma-fence-chain.c                  | 4 ++--
 drivers/gpu/drm/amd/amdgpu/amdgpu_eviction_fence.c | 7 ++++---
 drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c    | 5 +++--
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm_tlb_fence.c   | 5 +++--
 4 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/drivers/dma-buf/dma-fence-chain.c b/drivers/dma-buf/dma-fence-chain.c
index a588f55ea4d3..706e1f5e3a23 100644
--- a/drivers/dma-buf/dma-fence-chain.c
+++ b/drivers/dma-buf/dma-fence-chain.c
@@ -261,8 +261,8 @@ void dma_fence_chain_init(struct dma_fence_chain *chain,
 			seqno = max(prev->seqno, seqno);
 	}
 
-	dma_fence_init64(&chain->base, &dma_fence_chain_ops, NULL,
-			 context, seqno);
+	dma_fence_init(&chain->base, &dma_fence_chain_ops, NULL,
+		       context, seqno, BIT(DMA_FENCE_INIT_FLAG_SEQNO64));
 
 	/*
 	 * dma_fence_chain_enable_signaling() is invoked while holding
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_eviction_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_eviction_fence.c
index f6b7522c3c82..1337f7f4195f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_eviction_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_eviction_fence.c
@@ -130,9 +130,10 @@ int amdgpu_evf_mgr_rearm(struct amdgpu_eviction_fence_mgr *evf_mgr,
 	ev_fence->evf_mgr = evf_mgr;
 	get_task_comm(ev_fence->timeline_name, current);
 	spin_lock_init(&ev_fence->lock);
-	dma_fence_init64(&ev_fence->base, &amdgpu_eviction_fence_ops,
-			 &ev_fence->lock, evf_mgr->ev_fence_ctx,
-			 atomic_inc_return(&evf_mgr->ev_fence_seq));
+	dma_fence_init(&ev_fence->base, &amdgpu_eviction_fence_ops,
+		       &ev_fence->lock, evf_mgr->ev_fence_ctx,
+		       atomic_inc_return(&evf_mgr->ev_fence_seq),
+		       BIT(DMA_FENCE_INIT_FLAG_SEQNO64));
 
 	/* Remember it for newly added BOs */
 	dma_fence_put(evf_mgr->ev_fence);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c
index 6f1dc813ec5b..199cc1835448 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_userq_fence.c
@@ -274,8 +274,9 @@ static void amdgpu_userq_fence_init(struct amdgpu_usermode_queue *userq,
 	bool signaled = false;
 
 	spin_lock_init(&fence->lock);
-	dma_fence_init64(&fence->base, &amdgpu_userq_fence_ops, &fence->lock,
-			 fence_drv->context, seq);
+	dma_fence_init(&fence->base, &amdgpu_userq_fence_ops, &fence->lock,
+		       fence_drv->context, seq,
+		       BIT(DMA_FENCE_INIT_FLAG_SEQNO64));
 
 	/* Make sure the fence is visible to the hang detect worker */
 	dma_fence_put(userq->last_fence);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_tlb_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_tlb_fence.c
index b0002c898386..8b9b9368956f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_tlb_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_tlb_fence.c
@@ -100,8 +100,9 @@ void amdgpu_vm_tlb_fence_create(struct amdgpu_device *adev, struct amdgpu_vm *vm
 	INIT_WORK(&f->work, amdgpu_tlb_fence_work);
 	spin_lock_init(&f->lock);
 
-	dma_fence_init64(&f->base, &amdgpu_tlb_fence_ops, &f->lock,
-			 vm->tlb_fence_context, atomic64_read(&vm->tlb_seq));
+	dma_fence_init(&f->base, &amdgpu_tlb_fence_ops, &f->lock,
+		       vm->tlb_fence_context, atomic64_read(&vm->tlb_seq),
+		       BIT(DMA_FENCE_INIT_FLAG_SEQNO64));
 
 	/* TODO: We probably need a separate wq here */
 	dma_fence_get(&f->base);
-- 
2.56.0


  parent reply	other threads:[~2026-10-29  9:59 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-29  9:55 [RFC PATCH 0/6] dma-buf: Phase out is_signaled() race Philipp Stanner
2026-10-29  9:55 ` [RFC PATCH 1/6] dma-buf: dma-fence: Add flags parameter to dma_fence_init() Philipp Stanner
2026-10-29 13:38   ` Christian König
2026-10-29  9:55 ` [RFC PATCH 2/6] dma-buf: dma-fence: Add flag for using 64-bit seqnos Philipp Stanner
2026-10-29  9:55 ` Philipp Stanner [this message]
2026-10-29  9:55 ` [RFC PATCH 4/6] dma-buf: dma-fence: remove dma_fence_init64() Philipp Stanner
2026-10-29  9:55 ` [RFC PATCH 5/6] dma-buf: dma-fence: Close race in dma_fence_is_signaled() by default Philipp Stanner
2026-10-29  9:55 ` [RFC PATCH 6/6] drm/nouveau: Remove hacky fence check Philipp Stanner
2026-10-29 10:23 ` [RFC PATCH 0/6] dma-buf: Phase out is_signaled() race Lucas Stach
2026-10-29 10:28   ` Philipp Stanner
2026-10-29 11:23     ` Lucas Stach
2026-10-29 13:43     ` Christian König

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