Displaying 20 results from an estimated 228 matches for "vbuf".
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2017 Mar 01
2
[PATCH] drm: virtio: use kmem_cache
...v.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index 2f76673..4e66e35 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -178,9 +178,7 @@ struct virtio_gpu_device {
struct virtio_gpu_queue ctrlq;
struct virtio_gpu_queue cursorq;
- struct list_head free_vbufs;
- spinlock_t free_vbufs_lock;
- void *vbufs;
+ struct kmem_cache *vbufs;
bool vqs_ready;
struct idr resource_idr;
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 43ea0dc..472e349 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/...
2017 Mar 01
2
[PATCH] drm: virtio: use kmem_cache
...v.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index 2f76673..4e66e35 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -178,9 +178,7 @@ struct virtio_gpu_device {
struct virtio_gpu_queue ctrlq;
struct virtio_gpu_queue cursorq;
- struct list_head free_vbufs;
- spinlock_t free_vbufs_lock;
- void *vbufs;
+ struct kmem_cache *vbufs;
bool vqs_ready;
struct idr resource_idr;
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 43ea0dc..472e349 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/...
2019 Sep 05
2
[PATCH v2] drm/virtio: Use vmalloc for command buffer allocations.
...vation(&ticket, &validate_list);
out_free:
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 981ee16e3ee9..3ec89ae8478c 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -154,7 +154,7 @@ static void free_vbuf(struct virtio_gpu_device *vgdev,
{
if (vbuf->resp_size > MAX_INLINE_RESP_SIZE)
kfree(vbuf->resp_buf);
- kfree(vbuf->data_buf);
+ kvfree(vbuf->data_buf);
kmem_cache_free(vgdev->vbufs, vbuf);
}
@@ -251,13 +251,70 @@ void virtio_gpu_dequeue_cursor_func(struct work_struct *...
2019 Sep 05
2
[PATCH v2] drm/virtio: Use vmalloc for command buffer allocations.
...vation(&ticket, &validate_list);
out_free:
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 981ee16e3ee9..3ec89ae8478c 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -154,7 +154,7 @@ static void free_vbuf(struct virtio_gpu_device *vgdev,
{
if (vbuf->resp_size > MAX_INLINE_RESP_SIZE)
kfree(vbuf->resp_buf);
- kfree(vbuf->data_buf);
+ kvfree(vbuf->data_buf);
kmem_cache_free(vgdev->vbufs, vbuf);
}
@@ -251,13 +251,70 @@ void virtio_gpu_dequeue_cursor_func(struct work_struct *...
2019 Sep 04
2
[PATCH] drm/virtio: fix command submission with objects but without fence.
...f7b97 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -339,11 +339,12 @@ static void virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev,
goto again;
}
- if (fence)
+ if (fence) {
virtio_gpu_fence_emit(vgdev, hdr, fence);
- if (vbuf->objs) {
- virtio_gpu_array_add_fence(vbuf->objs, &fence->f);
- virtio_gpu_array_unlock_resv(vbuf->objs);
+ if (vbuf->objs) {
+ virtio_gpu_array_add_fence(vbuf->objs, &fence->f);
+ virtio_gpu_array_unlock_resv(vbuf->objs);
+ }
}
notify = virtio_gpu_queue_...
2019 Sep 04
2
[PATCH] drm/virtio: fix command submission with objects but without fence.
...f7b97 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -339,11 +339,12 @@ static void virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev,
goto again;
}
- if (fence)
+ if (fence) {
virtio_gpu_fence_emit(vgdev, hdr, fence);
- if (vbuf->objs) {
- virtio_gpu_array_add_fence(vbuf->objs, &fence->f);
- virtio_gpu_array_unlock_resv(vbuf->objs);
+ if (vbuf->objs) {
+ virtio_gpu_array_add_fence(vbuf->objs, &fence->f);
+ virtio_gpu_array_unlock_resv(vbuf->objs);
+ }
}
notify = virtio_gpu_queue_...
2020 Feb 05
2
[PATCH 2/4] drm/virtio: resource teardown tweaks
...io/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -152,6 +152,15 @@ static void *virtio_gpu_alloc_cmd(struct virtio_gpu_device *vgdev,
sizeof(struct virtio_gpu_ctrl_hdr), NULL);
}
+static void *virtio_gpu_alloc_cmd_cb(struct virtio_gpu_device *vgdev,
+ struct virtio_gpu_vbuffer **vbuffer_p,
+ int size,
+ virtio_gpu_resp_cb cb)
+{
+ return virtio_gpu_alloc_cmd_resp(vgdev, cb, vbuffer_p, size,
+ sizeof(struct virtio_gpu_ctrl_hdr), NULL);
+}
+
static void free_vbuf(struct virtio_gpu_device *vgdev,
struct virtio_gpu_vbuffer *vbuf)
{
@@ -494,...
2020 Feb 05
2
[PATCH 2/4] drm/virtio: resource teardown tweaks
...io/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -152,6 +152,15 @@ static void *virtio_gpu_alloc_cmd(struct virtio_gpu_device *vgdev,
sizeof(struct virtio_gpu_ctrl_hdr), NULL);
}
+static void *virtio_gpu_alloc_cmd_cb(struct virtio_gpu_device *vgdev,
+ struct virtio_gpu_vbuffer **vbuffer_p,
+ int size,
+ virtio_gpu_resp_cb cb)
+{
+ return virtio_gpu_alloc_cmd_resp(vgdev, cb, vbuffer_p, size,
+ sizeof(struct virtio_gpu_ctrl_hdr), NULL);
+}
+
static void free_vbuf(struct virtio_gpu_device *vgdev,
struct virtio_gpu_vbuffer *vbuf)
{
@@ -494,...
2019 Sep 11
1
[PATCH v4 2/2] drm/virtio: Use vmalloc for command buffer allocations.
...(buflist)
virtio_gpu_array_unlock_resv(buflist);
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 5a64c776138d..9f9b782dd332 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -155,7 +155,7 @@ static void free_vbuf(struct virtio_gpu_device *vgdev,
{
if (vbuf->resp_size > MAX_INLINE_RESP_SIZE)
kfree(vbuf->resp_buf);
- kfree(vbuf->data_buf);
+ kvfree(vbuf->data_buf);
kmem_cache_free(vgdev->vbufs, vbuf);
}
@@ -256,13 +256,54 @@ void virtio_gpu_dequeue_cursor_func(struct work_struct *...
2019 Sep 10
0
[PATCH v3 2/2] drm/virtio: Use vmalloc for command buffer allocations.
...vation(&ticket, &validate_list);
out_free:
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index bf5a4a50b002..76cf2b9d5d1d 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -154,7 +154,7 @@ static void free_vbuf(struct virtio_gpu_device *vgdev,
{
if (vbuf->resp_size > MAX_INLINE_RESP_SIZE)
kfree(vbuf->resp_buf);
- kfree(vbuf->data_buf);
+ kvfree(vbuf->data_buf);
kmem_cache_free(vgdev->vbufs, vbuf);
}
@@ -251,13 +251,54 @@ void virtio_gpu_dequeue_cursor_func(struct work_struct *...
2015 Jun 16
0
[PATCH 3/3] virtio-gpu: add locking for vbuf pool
...drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index ff8de3d..6d4db2d 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -162,6 +162,7 @@ struct virtio_gpu_device {
struct virtio_gpu_queue ctrlq;
struct virtio_gpu_queue cursorq;
struct list_head free_vbufs;
+ spinlock_t free_vbufs_lock;
void *vbufs;
bool vqs_ready;
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index c506792..1698669f 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -79,6 +79,7 @@ int virtio_g...
2020 Sep 08
0
[PATCH 2/3] drm/virtio: return virtio_gpu_queue errors
...drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -320,13 +320,13 @@ static struct sg_table *vmalloc_to_sgt(char *data, uint32_t size, int *sg_ents)
return sgt;
}
-static void virtio_gpu_queue_ctrl_sgs(struct virtio_gpu_device *vgdev,
- struct virtio_gpu_vbuffer *vbuf,
- struct virtio_gpu_fence *fence,
- int elemcnt,
- struct scatterlist **sgs,
- int outcnt,
- int incnt)
+static int virtio_gpu_queue_ctrl_sgs(struct virtio_gpu_device *vgdev,
+ struct virtio_gpu_vbuffer *vbuf,
+ struct virtio_gp...
2015 Jun 16
0
[PATCH 3/3] virtio-gpu: add locking for vbuf pool
...drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index ff8de3d..6d4db2d 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -162,6 +162,7 @@ struct virtio_gpu_device {
struct virtio_gpu_queue ctrlq;
struct virtio_gpu_queue cursorq;
struct list_head free_vbufs;
+ spinlock_t free_vbufs_lock;
void *vbufs;
bool vqs_ready;
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index c506792..1698669f 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -79,6 +79,7 @@ int virtio_g...
2019 Aug 13
0
[PATCH 1/2] drm/virtio: cleanup queue functions
.../virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -252,8 +252,8 @@ void virtio_gpu_dequeue_cursor_func(struct work_struct *work)
wake_up(&vgdev->cursorq.ack_queue);
}
-static int virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev,
- struct virtio_gpu_vbuffer *vbuf)
+static void virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev,
+ struct virtio_gpu_vbuffer *vbuf)
__releases(&vgdev->ctrlq.qlock)
__acquires(&vgdev->ctrlq.qlock)
{
@@ -263,7 +263,7 @@ static int virtio_gpu_queue_ctrl_buffer_locked(struct virtio...
2020 Feb 13
0
[PATCH v3 1/4] drm/virtio: rework notification for better batching
...rs/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 w...
2020 Feb 14
0
[PATCH v4 1/6] drm/virtio: rework notification for better batching
...rs/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 w...
2017 Mar 13
1
[PATCH] drm: virtio: fix kmem_cache_alloc error check
...| 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 472e349..9eb96fb2 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -97,8 +97,8 @@ void virtio_gpu_free_vbufs(struct virtio_gpu_device *vgdev)
struct virtio_gpu_vbuffer *vbuf;
vbuf = kmem_cache_alloc(vgdev->vbufs, GFP_KERNEL);
- if (IS_ERR(vbuf))
- return ERR_CAST(vbuf);
+ if (!vbuf)
+ return ERR_PTR(-ENOMEM);
memset(vbuf, 0, VBUFFER_SIZE);
BUG_ON(size > MAX_INLINE_CMD_SIZE);
--
1.8.3...
2017 Mar 13
1
[PATCH] drm: virtio: fix kmem_cache_alloc error check
...| 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 472e349..9eb96fb2 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -97,8 +97,8 @@ void virtio_gpu_free_vbufs(struct virtio_gpu_device *vgdev)
struct virtio_gpu_vbuffer *vbuf;
vbuf = kmem_cache_alloc(vgdev->vbufs, GFP_KERNEL);
- if (IS_ERR(vbuf))
- return ERR_CAST(vbuf);
+ if (!vbuf)
+ return ERR_PTR(-ENOMEM);
memset(vbuf, 0, VBUFFER_SIZE);
BUG_ON(size > MAX_INLINE_CMD_SIZE);
--
1.8.3...
2019 Sep 05
1
[PATCH] drm/virtio: fix command submission with objects but without fence.
...static void virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev,
> > goto again;
> > }
> >
> > - if (fence)
> > + if (fence) {
> > virtio_gpu_fence_emit(vgdev, hdr, fence);
> > - if (vbuf->objs) {
> > - virtio_gpu_array_add_fence(vbuf->objs, &fence->f);
> > - virtio_gpu_array_unlock_resv(vbuf->objs);
> > + if (vbuf->objs) {
> > + virtio_gpu_array_add_fence(vbuf->objs, &f...
2009 Aug 05
0
[PATCH] virtio_serial: A char device for simple guest <-> host communication
...split data.
+ *
+ * If we are to keep PAGE_SIZE sized buffers, we then have to stack
+ * multiple of those in one virtio request. virtio-ring returns to us
+ * just one pointer for all the buffers. So use this struct to
+ * allocate the bufs in so that freeing this up later is easier.
+ */
+struct vbuf {
+ char **bufs;
+ struct scatterlist *sg;
+ unsigned int nent;
+};
+
+static ssize_t virtserial_write(struct file *filp, const char __user *ubuf,
+ size_t count, loff_t *offp)
+{
+ struct virtqueue *out_vq;
+ struct virtio_serial_port *port;
+ struct virtio_serial_id id;
+ struct vbuf *vbuf;
+...