summaryrefslogtreecommitdiffstats
path: root/drivers
diff options
context:
space:
mode:
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_drv.h6
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_plane.c4
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_vq.c50
3 files changed, 33 insertions, 27 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index af9403e1cf78..2f6c4ccbfd14 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -179,8 +179,7 @@ struct virtio_gpu_device {
struct virtio_gpu_queue cursorq;
struct kmem_cache *vbufs;
- bool disable_notify;
- bool pending_notify;
+ atomic_t pending_commands;
struct ida resource_ida;
@@ -335,8 +334,7 @@ void virtio_gpu_dequeue_ctrl_func(struct work_struct *work);
void virtio_gpu_dequeue_cursor_func(struct work_struct *work);
void virtio_gpu_dequeue_fence_func(struct work_struct *work);
-void virtio_gpu_disable_notify(struct virtio_gpu_device *vgdev);
-void virtio_gpu_enable_notify(struct virtio_gpu_device *vgdev);
+void virtio_gpu_notify(struct virtio_gpu_device *vgdev);
/* virtio_gpu_display.c */
void virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev);
diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c
index d1c3f5fbfee4..08b2e4127eb3 100644
--- a/drivers/gpu/drm/virtio/virtgpu_plane.c
+++ b/drivers/gpu/drm/virtio/virtgpu_plane.c
@@ -154,8 +154,6 @@ static void virtio_gpu_primary_plane_update(struct drm_plane *plane,
if (!drm_atomic_helper_damage_merged(old_state, plane->state, &rect))
return;
- virtio_gpu_disable_notify(vgdev);
-
bo = gem_to_virtio_gpu_obj(plane->state->fb->obj[0]);
if (bo->dumb)
virtio_gpu_update_dumb_bo(vgdev, plane->state, &rect);
@@ -186,8 +184,6 @@ static void virtio_gpu_primary_plane_update(struct drm_plane *plane,
rect.y1,
rect.x2 - rect.x1,
rect.y2 - rect.y1);
-
- virtio_gpu_enable_notify(vgdev);
}
static int virtio_gpu_cursor_prepare_fb(struct drm_plane *plane,
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 67caecde623e..6cc259cfa517 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -329,7 +329,6 @@ static void virtio_gpu_queue_ctrl_sgs(struct virtio_gpu_device *vgdev,
int incnt)
{
struct virtqueue *vq = vgdev->ctrlq.vq;
- bool notify = false;
int ret, idx;
if (!drm_dev_enter(vgdev->ddev, &idx)) {
@@ -368,16 +367,10 @@ again:
trace_virtio_gpu_cmd_queue(vq, virtio_gpu_vbuf_ctrl_hdr(vbuf));
- notify = virtqueue_kick_prepare(vq);
+ atomic_inc(&vgdev->pending_commands);
spin_unlock(&vgdev->ctrlq.qlock);
- if (notify) {
- if (vgdev->disable_notify)
- vgdev->pending_notify = true;
- else
- virtqueue_notify(vq);
- }
drm_dev_exit(idx);
}
@@ -434,19 +427,20 @@ static void virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev,
}
}
-void virtio_gpu_disable_notify(struct virtio_gpu_device *vgdev)
-{
- vgdev->disable_notify = true;
-}
-
-void virtio_gpu_enable_notify(struct virtio_gpu_device *vgdev)
+void virtio_gpu_notify(struct virtio_gpu_device *vgdev)
{
- vgdev->disable_notify = false;
+ bool notify;
- if (!vgdev->pending_notify)
+ if (!atomic_read(&vgdev->pending_commands))
return;
- vgdev->pending_notify = false;
- virtqueue_notify(vgdev->ctrlq.vq);
+
+ spin_lock(&vgdev->ctrlq.qlock);
+ atomic_set(&vgdev->pending_commands, 0);
+ notify = virtqueue_kick_prepare(vgdev->ctrlq.vq);
+ spin_unlock(&vgdev->ctrlq.qlock);
+
+ if (notify)
+ virtqueue_notify(vgdev->ctrlq.vq);
}
static void virtio_gpu_queue_ctrl_buffer(struct virtio_gpu_device *vgdev,
@@ -520,6 +514,7 @@ 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_notify(vgdev);
bo->created = true;
}
@@ -549,6 +544,7 @@ void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev,
vbuf->resp_cb_data = bo;
virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
+ virtio_gpu_notify(vgdev);
}
void virtio_gpu_cmd_set_scanout(struct virtio_gpu_device *vgdev,
@@ -571,6 +567,7 @@ 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_notify(vgdev);
}
void virtio_gpu_cmd_resource_flush(struct virtio_gpu_device *vgdev,
@@ -592,6 +589,7 @@ 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_notify(vgdev);
}
void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev,
@@ -624,6 +622,7 @@ 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_notify(vgdev);
}
static void
@@ -647,6 +646,7 @@ 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_notify(vgdev);
}
static void virtio_gpu_cmd_get_display_info_cb(struct virtio_gpu_device *vgdev,
@@ -779,6 +779,7 @@ 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_notify(vgdev);
return 0;
}
@@ -802,6 +803,7 @@ 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_notify(vgdev);
return 0;
}
@@ -877,6 +879,7 @@ 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_notify(vgdev);
return 0;
}
@@ -904,6 +907,7 @@ 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_notify(vgdev);
}
return 0;
@@ -924,6 +928,7 @@ 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_notify(vgdev);
}
void virtio_gpu_cmd_context_destroy(struct virtio_gpu_device *vgdev,
@@ -938,6 +943,7 @@ 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_notify(vgdev);
}
void virtio_gpu_cmd_context_attach_resource(struct virtio_gpu_device *vgdev,
@@ -956,7 +962,7 @@ 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_notify(vgdev);
}
void virtio_gpu_cmd_context_detach_resource(struct virtio_gpu_device *vgdev,
@@ -975,6 +981,7 @@ 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_notify(vgdev);
}
void
@@ -1006,6 +1013,8 @@ 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_notify(vgdev);
+
bo->created = true;
}
@@ -1039,6 +1048,7 @@ 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_notify(vgdev);
}
void virtio_gpu_cmd_transfer_from_host_3d(struct virtio_gpu_device *vgdev,
@@ -1065,6 +1075,7 @@ 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_notify(vgdev);
}
void virtio_gpu_cmd_submit(struct virtio_gpu_device *vgdev,
@@ -1088,6 +1099,7 @@ 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_notify(vgdev);
}
int virtio_gpu_object_attach(struct virtio_gpu_device *vgdev,
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-09 06:21:16 +0000