All of lore.kernel.org
 help / color / mirror / Atom feed
From: Chia-I Wu <olvaffe@gmail.com>
To: dri-devel@lists.freedesktop.org
Cc: kraxel@redhat.com, gurchetansingh@chromium.org
Subject: [PATCH v2 2/3] drm/virtio: never kick in virtio_gpu_queue_ctrl_sgs
Date: Fri,  7 Feb 2020 14:13:58 -0800	[thread overview]
Message-ID: <20200207221359.187340-3-olvaffe@gmail.com> (raw)
In-Reply-To: <20200207221359.187340-1-olvaffe@gmail.com>

virtio_gpu_queue_ctrl_sgs queues only.  virtio_gpu_commit_ctrl must
be explicitly called.  This however means that we need to grab the
spinlock twice.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
---
 drivers/gpu/drm/virtio/virtgpu_vq.c | 29 ++++++++++++++++++++++-------
 1 file changed, 22 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 0c9be2142ba1a..d76b24f2b2bff 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -367,13 +367,7 @@ static void virtio_gpu_queue_ctrl_sgs(struct virtio_gpu_device *vgdev,
 
 	trace_virtio_gpu_cmd_queue(vq, virtio_gpu_vbuf_ctrl_hdr(vbuf));
 
-	if (!vgdev->disable_notify)
-		notify = virtqueue_kick_prepare(vq);
-
 	spin_unlock(&vgdev->ctrlq.qlock);
-
-	if (notify)
-		virtqueue_notify(vq);
 }
 
 static void virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev,
@@ -434,6 +428,9 @@ static void virtio_gpu_commit_ctrl(struct virtio_gpu_device *vgdev)
 	struct virtqueue *vq = vgdev->ctrlq.vq;
 	bool notify;
 
+	if (vgdev->disable_notify)
+		return;
+
 	spin_lock(&vgdev->ctrlq.qlock);
 	notify = virtqueue_kick_prepare(vq);
 	spin_unlock(&vgdev->ctrlq.qlock);
@@ -525,6 +522,7 @@ void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev,
 	cmd_p->height = cpu_to_le32(params->height);
 
 	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, fence);
+	virtio_gpu_commit_ctrl(vgdev);
 	bo->created = true;
 }
 
@@ -541,6 +539,7 @@ void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev,
 	cmd_p->resource_id = cpu_to_le32(resource_id);
 
 	virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
+	virtio_gpu_commit_ctrl(vgdev);
 }
 
 static void virtio_gpu_cmd_resource_inval_backing(struct virtio_gpu_device *vgdev,
@@ -557,6 +556,7 @@ static void virtio_gpu_cmd_resource_inval_backing(struct virtio_gpu_device *vgde
 	cmd_p->resource_id = cpu_to_le32(resource_id);
 
 	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, fence);
+	virtio_gpu_commit_ctrl(vgdev);
 }
 
 void virtio_gpu_cmd_set_scanout(struct virtio_gpu_device *vgdev,
@@ -579,6 +579,7 @@ void virtio_gpu_cmd_set_scanout(struct virtio_gpu_device *vgdev,
 	cmd_p->r.y = cpu_to_le32(y);
 
 	virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
+	virtio_gpu_commit_ctrl(vgdev);
 }
 
 void virtio_gpu_cmd_resource_flush(struct virtio_gpu_device *vgdev,
@@ -600,6 +601,7 @@ void virtio_gpu_cmd_resource_flush(struct virtio_gpu_device *vgdev,
 	cmd_p->r.y = cpu_to_le32(y);
 
 	virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
+	virtio_gpu_commit_ctrl(vgdev);
 }
 
 void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev,
@@ -632,6 +634,7 @@ void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev,
 	cmd_p->r.y = cpu_to_le32(y);
 
 	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, fence);
+	virtio_gpu_commit_ctrl(vgdev);
 }
 
 static void
@@ -655,6 +658,7 @@ virtio_gpu_cmd_resource_attach_backing(struct virtio_gpu_device *vgdev,
 	vbuf->data_size = sizeof(*ents) * nents;
 
 	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, fence);
+	virtio_gpu_commit_ctrl(vgdev);
 }
 
 static void virtio_gpu_cmd_get_display_info_cb(struct virtio_gpu_device *vgdev,
@@ -787,6 +791,7 @@ int virtio_gpu_cmd_get_display_info(struct virtio_gpu_device *vgdev)
 	vgdev->display_info_pending = true;
 	cmd_p->type = cpu_to_le32(VIRTIO_GPU_CMD_GET_DISPLAY_INFO);
 	virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
+	virtio_gpu_commit_ctrl(vgdev);
 	return 0;
 }
 
@@ -810,6 +815,7 @@ int virtio_gpu_cmd_get_capset_info(struct virtio_gpu_device *vgdev, int idx)
 	cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_GET_CAPSET_INFO);
 	cmd_p->capset_index = cpu_to_le32(idx);
 	virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
+	virtio_gpu_commit_ctrl(vgdev);
 	return 0;
 }
 
@@ -885,6 +891,7 @@ int virtio_gpu_cmd_get_capset(struct virtio_gpu_device *vgdev,
 	cmd_p->capset_version = cpu_to_le32(version);
 	*cache_p = cache_ent;
 	virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
+	virtio_gpu_commit_ctrl(vgdev);
 
 	return 0;
 }
@@ -912,6 +919,7 @@ int virtio_gpu_cmd_get_edids(struct virtio_gpu_device *vgdev)
 		cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_GET_EDID);
 		cmd_p->scanout = cpu_to_le32(scanout);
 		virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
+		virtio_gpu_commit_ctrl(vgdev);
 	}
 
 	return 0;
@@ -932,6 +940,7 @@ void virtio_gpu_cmd_context_create(struct virtio_gpu_device *vgdev, uint32_t id,
 	strncpy(cmd_p->debug_name, name, sizeof(cmd_p->debug_name) - 1);
 	cmd_p->debug_name[sizeof(cmd_p->debug_name) - 1] = 0;
 	virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
+	virtio_gpu_commit_ctrl(vgdev);
 }
 
 void virtio_gpu_cmd_context_destroy(struct virtio_gpu_device *vgdev,
@@ -946,6 +955,7 @@ void virtio_gpu_cmd_context_destroy(struct virtio_gpu_device *vgdev,
 	cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_CTX_DESTROY);
 	cmd_p->hdr.ctx_id = cpu_to_le32(id);
 	virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
+	virtio_gpu_commit_ctrl(vgdev);
 }
 
 void virtio_gpu_cmd_context_attach_resource(struct virtio_gpu_device *vgdev,
@@ -964,7 +974,7 @@ void virtio_gpu_cmd_context_attach_resource(struct virtio_gpu_device *vgdev,
 	cmd_p->hdr.ctx_id = cpu_to_le32(ctx_id);
 	cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle);
 	virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
-
+	virtio_gpu_commit_ctrl(vgdev);
 }
 
 void virtio_gpu_cmd_context_detach_resource(struct virtio_gpu_device *vgdev,
@@ -983,6 +993,7 @@ void virtio_gpu_cmd_context_detach_resource(struct virtio_gpu_device *vgdev,
 	cmd_p->hdr.ctx_id = cpu_to_le32(ctx_id);
 	cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle);
 	virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
+	virtio_gpu_commit_ctrl(vgdev);
 }
 
 void
@@ -1014,6 +1025,7 @@ virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev,
 	cmd_p->flags = cpu_to_le32(params->flags);
 
 	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, fence);
+	virtio_gpu_commit_ctrl(vgdev);
 	bo->created = true;
 }
 
@@ -1047,6 +1059,7 @@ void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev,
 	cmd_p->level = cpu_to_le32(level);
 
 	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, fence);
+	virtio_gpu_commit_ctrl(vgdev);
 }
 
 void virtio_gpu_cmd_transfer_from_host_3d(struct virtio_gpu_device *vgdev,
@@ -1073,6 +1086,7 @@ void virtio_gpu_cmd_transfer_from_host_3d(struct virtio_gpu_device *vgdev,
 	cmd_p->level = cpu_to_le32(level);
 
 	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, fence);
+	virtio_gpu_commit_ctrl(vgdev);
 }
 
 void virtio_gpu_cmd_submit(struct virtio_gpu_device *vgdev,
@@ -1096,6 +1110,7 @@ void virtio_gpu_cmd_submit(struct virtio_gpu_device *vgdev,
 	cmd_p->size = cpu_to_le32(data_size);
 
 	virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, fence);
+	virtio_gpu_commit_ctrl(vgdev);
 }
 
 int virtio_gpu_object_attach(struct virtio_gpu_device *vgdev,
-- 
2.25.0.341.g760bfbb309-goog

_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

  parent reply	other threads:[~2020-02-07 22:14 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-06 19:22 [PATCH 0/2] drm/virtio: rework command batching Chia-I Wu
2020-02-06 19:22 ` [PATCH 1/2] drm/virtio: remove the global pending_notify state Chia-I Wu
2020-02-06 19:22 ` [PATCH 2/2] drm/virtio: remove the global disable_notify state Chia-I Wu
2020-02-07  8:22   ` Gerd Hoffmann
2020-02-07 22:13 ` [PATCH v2 0/3] drm/virtio: rework command batching Chia-I Wu
2020-02-07 22:13   ` [PATCH v2 1/3] drm/virtio: remove the global pending_notify state Chia-I Wu
2020-02-07 22:13   ` Chia-I Wu [this message]
2020-02-11 12:57     ` [PATCH v2 2/3] drm/virtio: never kick in virtio_gpu_queue_ctrl_sgs Gerd Hoffmann
2020-02-07 22:13   ` [PATCH v2 3/3] drm/virtio: remove the global disable_notify state Chia-I Wu

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200207221359.187340-3-olvaffe@gmail.com \
    --to=olvaffe@gmail.com \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=gurchetansingh@chromium.org \
    --cc=kraxel@redhat.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.