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From: Chia-I Wu <olvaffe@gmail.com>
To: dri-devel@lists.freedesktop.org
Cc: kraxel@redhat.com, gurchetansingh@chromium.org
Subject: [PATCH 10/11] drm/virtio: move virtqueue_notify into virtio_gpu_queue_ctrl_sgs
Date: Wed,  5 Feb 2020 10:19:54 -0800	[thread overview]
Message-ID: <20200205181955.202485-11-olvaffe@gmail.com> (raw)
In-Reply-To: <20200205181955.202485-1-olvaffe@gmail.com>

It becomes clear that virtio_gpu_queue_fenced_ctrl_buffer should be
responsible for setting up sgs and virtio_gpu_queue_ctrl_sgs should
be responsible for queuing sgs.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
---
 drivers/gpu/drm/virtio/virtgpu_vq.c | 22 ++++++++++------------
 1 file changed, 10 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 725cfe93bcef8..0961475e68105 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -318,7 +318,7 @@ static struct sg_table *vmalloc_to_sgt(char *data, uint32_t size, int *sg_ents)
 	return sgt;
 }
 
-static bool virtio_gpu_queue_ctrl_sgs(struct virtio_gpu_device *vgdev,
+static void virtio_gpu_queue_ctrl_sgs(struct virtio_gpu_device *vgdev,
 				      struct virtio_gpu_vbuffer *vbuf,
 				      struct virtio_gpu_fence *fence,
 				      int elemcnt,
@@ -338,7 +338,7 @@ static bool virtio_gpu_queue_ctrl_sgs(struct virtio_gpu_device *vgdev,
 
 		if (fence && vbuf->objs)
 			virtio_gpu_array_unlock_resv(vbuf->objs);
-		return notify;
+		return;
 	}
 
 	if (vq->num_free < elemcnt) {
@@ -368,7 +368,12 @@ static bool virtio_gpu_queue_ctrl_sgs(struct virtio_gpu_device *vgdev,
 
 	spin_unlock(&vgdev->ctrlq.qlock);
 
-	return notify;
+	if (notify) {
+		if (vgdev->disable_notify)
+			vgdev->pending_notify = true;
+		else
+			virtqueue_notify(vq);
+	}
 }
 
 static void virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev,
@@ -378,7 +383,6 @@ static void virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev,
 	struct scatterlist *sgs[3], vcmd, vout, vresp;
 	struct sg_table *sgt = NULL;
 	int elemcnt = 0, outcnt = 0, incnt = 0;
-	bool notify;
 
 	/* set up vcmd */
 	sg_init_one(&vcmd, vbuf->buf, vbuf->size);
@@ -416,14 +420,8 @@ static void virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev,
 		incnt++;
 	}
 
-	notify = virtio_gpu_queue_ctrl_sgs(vgdev, vbuf, fence, elemcnt, sgs,
-					   outcnt, incnt);
-	if (notify) {
-		if (vgdev->disable_notify)
-			vgdev->pending_notify = true;
-		else
-			virtqueue_notify(vgdev->ctrlq.vq);
-	}
+	virtio_gpu_queue_ctrl_sgs(vgdev, vbuf, fence, elemcnt, sgs, outcnt,
+				  incnt);
 
 	if (sgt) {
 		sg_free_table(sgt);
-- 
2.25.0.341.g760bfbb309-goog

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  parent reply	other threads:[~2020-02-05 18:20 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-05 18:19 [PATCH 00/11] drm/virtio: fixes and cleanups for vbuf queuing Chia-I Wu
2020-02-05 18:19 ` [PATCH 01/11] drm/virtio: fix a wait_event condition Chia-I Wu
2020-02-05 18:19 ` [PATCH 02/11] drm/virtio: remove incorrect ENOSPC check Chia-I Wu
2020-02-05 18:19 ` [PATCH 03/11] drm/virtio: add virtio_gpu_vbuf_ctrl_hdr Chia-I Wu
2020-02-05 18:19 ` [PATCH 04/11] drm/virtio: no need to pass virtio_gpu_ctrl_hdr Chia-I Wu
2020-02-05 18:19 ` [PATCH 05/11] drm/virtio: unlock object array on errors Chia-I Wu
2020-02-05 18:19 ` [PATCH 06/11] drm/virtio: set up virtqueue sgs before locking Chia-I Wu
2020-02-05 18:19 ` [PATCH 07/11] drm/virtio: move locking into virtio_gpu_queue_ctrl_sgs Chia-I Wu
2020-02-05 18:19 ` [PATCH 08/11] drm/virtio: move the check for vqs_ready earlier Chia-I Wu
2020-02-05 18:19 ` [PATCH 09/11] drm/virtio: avoid an infinite loop Chia-I Wu
2020-02-06  9:49   ` Gerd Hoffmann
2020-02-06 18:15     ` Chia-I Wu
2020-02-05 18:19 ` Chia-I Wu [this message]
2020-02-05 18:19 ` [PATCH 11/11] drm/virtio: rework virtio_gpu_enable_notify Chia-I Wu
2020-02-06 11:17 ` [PATCH 00/11] drm/virtio: fixes and cleanups for vbuf queuing Gerd Hoffmann

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