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path: root/drivers/gpu/drm/virtio
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-rw-r--r--drivers/gpu/drm/virtio/Kconfig3
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_debugfs.c1
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_display.c13
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_drv.c3
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_drv.h23
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_gem.c3
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_kms.c14
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_object.c36
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_prime.c96
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_vq.c120
10 files changed, 253 insertions, 59 deletions
diff --git a/drivers/gpu/drm/virtio/Kconfig b/drivers/gpu/drm/virtio/Kconfig
index eff3047052d4..b925b8b1da16 100644
--- a/drivers/gpu/drm/virtio/Kconfig
+++ b/drivers/gpu/drm/virtio/Kconfig
@@ -1,9 +1,10 @@
# SPDX-License-Identifier: GPL-2.0-only
config DRM_VIRTIO_GPU
tristate "Virtio GPU driver"
- depends on DRM && VIRTIO && MMU
+ depends on DRM && VIRTIO && VIRTIO_MENU && MMU
select DRM_KMS_HELPER
select DRM_GEM_SHMEM_HELPER
+ select VIRTIO_DMA_SHARED_BUFFER
help
This is the virtual GPU driver for virtio. It can be used with
QEMU based VMMs (like KVM or Xen).
diff --git a/drivers/gpu/drm/virtio/virtgpu_debugfs.c b/drivers/gpu/drm/virtio/virtgpu_debugfs.c
index 3221520f61f0..d5b0c543bd6d 100644
--- a/drivers/gpu/drm/virtio/virtgpu_debugfs.c
+++ b/drivers/gpu/drm/virtio/virtgpu_debugfs.c
@@ -48,6 +48,7 @@ static int virtio_gpu_features(struct seq_file *m, void *data)
virtio_add_bool(m, "virgl", vgdev->has_virgl_3d);
virtio_add_bool(m, "edid", vgdev->has_edid);
virtio_add_bool(m, "indirect", vgdev->has_indirect);
+ virtio_add_bool(m, "resource uuid", vgdev->has_resource_assign_uuid);
virtio_add_int(m, "cap sets", vgdev->num_capsets);
virtio_add_int(m, "scanouts", vgdev->num_scanouts);
return 0;
diff --git a/drivers/gpu/drm/virtio/virtgpu_display.c b/drivers/gpu/drm/virtio/virtgpu_display.c
index afd0f9200f90..f84b7e61311b 100644
--- a/drivers/gpu/drm/virtio/virtgpu_display.c
+++ b/drivers/gpu/drm/virtio/virtgpu_display.c
@@ -172,8 +172,6 @@ static int virtio_gpu_conn_get_modes(struct drm_connector *connector)
count = drm_add_modes_noedid(connector, XRES_MAX, YRES_MAX);
if (width == 0 || height == 0) {
- width = XRES_DEF;
- height = YRES_DEF;
drm_set_preferred_mode(connector, XRES_DEF, YRES_DEF);
} else {
DRM_DEBUG("add mode: %dx%d\n", width, height);
@@ -327,11 +325,14 @@ static const struct drm_mode_config_funcs virtio_gpu_mode_funcs = {
.atomic_commit = drm_atomic_helper_commit,
};
-void virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev)
+int virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev)
{
- int i;
+ int i, ret;
+
+ ret = drmm_mode_config_init(vgdev->ddev);
+ if (ret)
+ return ret;
- drm_mode_config_init(vgdev->ddev);
vgdev->ddev->mode_config.quirk_addfb_prefer_host_byte_order = true;
vgdev->ddev->mode_config.funcs = &virtio_gpu_mode_funcs;
@@ -345,6 +346,7 @@ void virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev)
vgdev_output_init(vgdev, i);
drm_mode_config_reset(vgdev->ddev);
+ return 0;
}
void virtio_gpu_modeset_fini(struct virtio_gpu_device *vgdev)
@@ -353,5 +355,4 @@ void virtio_gpu_modeset_fini(struct virtio_gpu_device *vgdev)
for (i = 0 ; i < vgdev->num_scanouts; ++i)
kfree(vgdev->outputs[i].edid);
- drm_mode_config_cleanup(vgdev->ddev);
}
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.c b/drivers/gpu/drm/virtio/virtgpu_drv.c
index ab4bed78e656..b039f493bda9 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.c
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.c
@@ -165,6 +165,7 @@ static unsigned int features[] = {
VIRTIO_GPU_F_VIRGL,
#endif
VIRTIO_GPU_F_EDID,
+ VIRTIO_GPU_F_RESOURCE_UUID,
};
static struct virtio_driver virtio_gpu_driver = {
.feature_table = features,
@@ -202,6 +203,8 @@ static struct drm_driver driver = {
.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
.gem_prime_mmap = drm_gem_prime_mmap,
+ .gem_prime_export = virtgpu_gem_prime_export,
+ .gem_prime_import = virtgpu_gem_prime_import,
.gem_prime_import_sg_table = virtgpu_gem_prime_import_sg_table,
.gem_create_object = virtio_gpu_create_object,
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index fbc04272db4f..55c34b4fc3e9 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -49,6 +49,10 @@
#define DRIVER_MINOR 1
#define DRIVER_PATCHLEVEL 0
+#define UUID_INITIALIZING 0
+#define UUID_INITIALIZED 1
+#define UUID_INITIALIZATION_FAILED 2
+
struct virtio_gpu_object_params {
uint32_t format;
uint32_t width;
@@ -71,6 +75,9 @@ struct virtio_gpu_object {
uint32_t hw_res_handle;
bool dumb;
bool created;
+
+ int uuid_state;
+ uuid_t uuid;
};
#define gem_to_virtio_gpu_obj(gobj) \
container_of((gobj), struct virtio_gpu_object, base.base)
@@ -200,6 +207,7 @@ struct virtio_gpu_device {
bool has_virgl_3d;
bool has_edid;
bool has_indirect;
+ bool has_resource_assign_uuid;
struct work_struct config_changed_work;
@@ -210,6 +218,9 @@ struct virtio_gpu_device {
struct virtio_gpu_drv_capset *capsets;
uint32_t num_capsets;
struct list_head cap_cache;
+
+ /* protects resource state when exporting */
+ spinlock_t resource_export_lock;
};
struct virtio_gpu_fpriv {
@@ -336,8 +347,12 @@ void virtio_gpu_dequeue_fence_func(struct work_struct *work);
void virtio_gpu_notify(struct virtio_gpu_device *vgdev);
+int
+virtio_gpu_cmd_resource_assign_uuid(struct virtio_gpu_device *vgdev,
+ struct virtio_gpu_object_array *objs);
+
/* virtgpu_display.c */
-void virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev);
+int virtio_gpu_modeset_init(struct virtio_gpu_device *vgdev);
void virtio_gpu_modeset_fini(struct virtio_gpu_device *vgdev);
/* virtgpu_plane.c */
@@ -367,6 +382,12 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
bool virtio_gpu_is_shmem(struct virtio_gpu_object *bo);
/* virtgpu_prime.c */
+struct dma_buf *virtgpu_gem_prime_export(struct drm_gem_object *obj,
+ int flags);
+struct drm_gem_object *virtgpu_gem_prime_import(struct drm_device *dev,
+ struct dma_buf *buf);
+int virtgpu_gem_prime_get_uuid(struct drm_gem_object *obj,
+ uuid_t *uuid);
struct drm_gem_object *virtgpu_gem_prime_import_sg_table(
struct drm_device *dev, struct dma_buf_attachment *attach,
struct sg_table *sgt);
diff --git a/drivers/gpu/drm/virtio/virtgpu_gem.c b/drivers/gpu/drm/virtio/virtgpu_gem.c
index 24ffacac99e4..c30c75ee83fc 100644
--- a/drivers/gpu/drm/virtio/virtgpu_gem.c
+++ b/drivers/gpu/drm/virtio/virtgpu_gem.c
@@ -154,9 +154,8 @@ void virtio_gpu_gem_object_close(struct drm_gem_object *obj,
struct virtio_gpu_object_array *virtio_gpu_array_alloc(u32 nents)
{
struct virtio_gpu_object_array *objs;
- size_t size = sizeof(*objs) + sizeof(objs->objs[0]) * nents;
- objs = kmalloc(size, GFP_KERNEL);
+ objs = kmalloc(struct_size(objs, objs, nents), GFP_KERNEL);
if (!objs)
return NULL;
diff --git a/drivers/gpu/drm/virtio/virtgpu_kms.c b/drivers/gpu/drm/virtio/virtgpu_kms.c
index 4d944a0dff3e..eed57a931309 100644
--- a/drivers/gpu/drm/virtio/virtgpu_kms.c
+++ b/drivers/gpu/drm/virtio/virtgpu_kms.c
@@ -80,8 +80,10 @@ static void virtio_gpu_get_capsets(struct virtio_gpu_device *vgdev,
vgdev->capsets[i].id > 0, 5 * HZ);
if (ret == 0) {
DRM_ERROR("timed out waiting for cap set %d\n", i);
+ spin_lock(&vgdev->display_info_lock);
kfree(vgdev->capsets);
vgdev->capsets = NULL;
+ spin_unlock(&vgdev->display_info_lock);
return;
}
DRM_INFO("cap set %d: id %d, max-version %d, max-size %d\n",
@@ -103,7 +105,7 @@ int virtio_gpu_init(struct drm_device *dev)
/* this will expand later */
struct virtqueue *vqs[2];
u32 num_scanouts, num_capsets;
- int ret;
+ int ret = 0;
if (!virtio_has_feature(dev_to_virtio(dev->dev), VIRTIO_F_VERSION_1))
return -ENODEV;
@@ -118,6 +120,7 @@ int virtio_gpu_init(struct drm_device *dev)
vgdev->dev = dev->dev;
spin_lock_init(&vgdev->display_info_lock);
+ spin_lock_init(&vgdev->resource_export_lock);
ida_init(&vgdev->ctx_id_ida);
ida_init(&vgdev->resource_ida);
init_waitqueue_head(&vgdev->resp_wq);
@@ -146,6 +149,9 @@ int virtio_gpu_init(struct drm_device *dev)
if (virtio_has_feature(vgdev->vdev, VIRTIO_RING_F_INDIRECT_DESC)) {
vgdev->has_indirect = true;
}
+ if (virtio_has_feature(vgdev->vdev, VIRTIO_GPU_F_RESOURCE_UUID)) {
+ vgdev->has_resource_assign_uuid = true;
+ }
DRM_INFO("features: %cvirgl %cedid\n",
vgdev->has_virgl_3d ? '+' : '-',
@@ -180,7 +186,11 @@ int virtio_gpu_init(struct drm_device *dev)
num_capsets, &num_capsets);
DRM_INFO("number of cap sets: %d\n", num_capsets);
- virtio_gpu_modeset_init(vgdev);
+ ret = virtio_gpu_modeset_init(vgdev);
+ if (ret) {
+ DRM_ERROR("modeset init failed\n");
+ goto err_scanouts;
+ }
virtio_device_ready(vgdev->vdev);
diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c
index 842f8b61aa89..00d6b95e259d 100644
--- a/drivers/gpu/drm/virtio/virtgpu_object.c
+++ b/drivers/gpu/drm/virtio/virtgpu_object.c
@@ -72,9 +72,8 @@ void virtio_gpu_cleanup_object(struct virtio_gpu_object *bo)
if (shmem->pages) {
if (shmem->mapped) {
- dma_unmap_sg(vgdev->vdev->dev.parent,
- shmem->pages->sgl, shmem->mapped,
- DMA_TO_DEVICE);
+ dma_unmap_sgtable(vgdev->vdev->dev.parent,
+ shmem->pages, DMA_TO_DEVICE, 0);
shmem->mapped = 0;
}
@@ -164,13 +163,13 @@ static int virtio_gpu_object_shmem_init(struct virtio_gpu_device *vgdev,
}
if (use_dma_api) {
- shmem->mapped = dma_map_sg(vgdev->vdev->dev.parent,
- shmem->pages->sgl,
- shmem->pages->nents,
- DMA_TO_DEVICE);
- *nents = shmem->mapped;
+ ret = dma_map_sgtable(vgdev->vdev->dev.parent,
+ shmem->pages, DMA_TO_DEVICE, 0);
+ if (ret)
+ return ret;
+ *nents = shmem->mapped = shmem->pages->nents;
} else {
- *nents = shmem->pages->nents;
+ *nents = shmem->pages->orig_nents;
}
*ents = kmalloc_array(*nents, sizeof(struct virtio_gpu_mem_entry),
@@ -180,13 +179,20 @@ static int virtio_gpu_object_shmem_init(struct virtio_gpu_device *vgdev,
return -ENOMEM;
}
- for_each_sg(shmem->pages->sgl, sg, *nents, si) {
- (*ents)[si].addr = cpu_to_le64(use_dma_api
- ? sg_dma_address(sg)
- : sg_phys(sg));
- (*ents)[si].length = cpu_to_le32(sg->length);
- (*ents)[si].padding = 0;
+ if (use_dma_api) {
+ for_each_sgtable_dma_sg(shmem->pages, sg, si) {
+ (*ents)[si].addr = cpu_to_le64(sg_dma_address(sg));
+ (*ents)[si].length = cpu_to_le32(sg_dma_len(sg));
+ (*ents)[si].padding = 0;
+ }
+ } else {
+ for_each_sgtable_sg(shmem->pages, sg, si) {
+ (*ents)[si].addr = cpu_to_le64(sg_phys(sg));
+ (*ents)[si].length = cpu_to_le32(sg->length);
+ (*ents)[si].padding = 0;
+ }
}
+
return 0;
}
diff --git a/drivers/gpu/drm/virtio/virtgpu_prime.c b/drivers/gpu/drm/virtio/virtgpu_prime.c
index 050d24c39a8f..acd14ef73d56 100644
--- a/drivers/gpu/drm/virtio/virtgpu_prime.c
+++ b/drivers/gpu/drm/virtio/virtgpu_prime.c
@@ -23,12 +23,102 @@
*/
#include <drm/drm_prime.h>
+#include <linux/virtio_dma_buf.h>
#include "virtgpu_drv.h"
-/* Empty Implementations as there should not be any other driver for a virtual
- * device that might share buffers with virtgpu
- */
+static int virtgpu_virtio_get_uuid(struct dma_buf *buf,
+ uuid_t *uuid)
+{
+ struct drm_gem_object *obj = buf->priv;
+ struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(obj);
+ struct virtio_gpu_device *vgdev = obj->dev->dev_private;
+
+ wait_event(vgdev->resp_wq, bo->uuid_state != UUID_INITIALIZING);
+ if (bo->uuid_state != UUID_INITIALIZED)
+ return -ENODEV;
+
+ uuid_copy(uuid, &bo->uuid);
+
+ return 0;
+}
+
+const struct virtio_dma_buf_ops virtgpu_dmabuf_ops = {
+ .ops = {
+ .cache_sgt_mapping = true,
+ .attach = virtio_dma_buf_attach,
+ .detach = drm_gem_map_detach,
+ .map_dma_buf = drm_gem_map_dma_buf,
+ .unmap_dma_buf = drm_gem_unmap_dma_buf,
+ .release = drm_gem_dmabuf_release,
+ .mmap = drm_gem_dmabuf_mmap,
+ .vmap = drm_gem_dmabuf_vmap,
+ .vunmap = drm_gem_dmabuf_vunmap,
+ },
+ .device_attach = drm_gem_map_attach,
+ .get_uuid = virtgpu_virtio_get_uuid,
+};
+
+struct dma_buf *virtgpu_gem_prime_export(struct drm_gem_object *obj,
+ int flags)
+{
+ struct dma_buf *buf;
+ struct drm_device *dev = obj->dev;
+ struct virtio_gpu_device *vgdev = dev->dev_private;
+ struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(obj);
+ struct virtio_gpu_object_array *objs;
+ int ret = 0;
+ DEFINE_DMA_BUF_EXPORT_INFO(exp_info);
+
+ if (vgdev->has_resource_assign_uuid) {
+ objs = virtio_gpu_array_alloc(1);
+ if (!objs)
+ return ERR_PTR(-ENOMEM);
+ virtio_gpu_array_add_obj(objs, &bo->base.base);
+
+ ret = virtio_gpu_cmd_resource_assign_uuid(vgdev, objs);
+ if (ret)
+ return ERR_PTR(ret);
+ virtio_gpu_notify(vgdev);
+ } else {
+ bo->uuid_state = UUID_INITIALIZATION_FAILED;
+ }
+
+ exp_info.ops = &virtgpu_dmabuf_ops.ops;
+ exp_info.size = obj->size;
+ exp_info.flags = flags;
+ exp_info.priv = obj;
+ exp_info.resv = obj->resv;
+
+ buf = virtio_dma_buf_export(&exp_info);
+ if (IS_ERR(buf))
+ return buf;
+
+ drm_dev_get(dev);
+ drm_gem_object_get(obj);
+
+ return buf;
+}
+
+struct drm_gem_object *virtgpu_gem_prime_import(struct drm_device *dev,
+ struct dma_buf *buf)
+{
+ struct drm_gem_object *obj;
+
+ if (buf->ops == &virtgpu_dmabuf_ops.ops) {
+ obj = buf->priv;
+ if (obj->dev == dev) {
+ /*
+ * Importing dmabuf exported from our own gem increases
+ * refcount on gem itself instead of f_count of dmabuf.
+ */
+ drm_gem_object_get(obj);
+ return obj;
+ }
+ }
+
+ return drm_gem_prime_import(dev, buf);
+}
struct drm_gem_object *virtgpu_gem_prime_import_sg_table(
struct drm_device *dev, struct dma_buf_attachment *attach,
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 53af60d484a4..07945ca238e2 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -302,7 +302,7 @@ static struct sg_table *vmalloc_to_sgt(char *data, uint32_t size, int *sg_ents)
return NULL;
}
- for_each_sg(sgt->sgl, sg, *sg_ents, i) {
+ for_each_sgtable_sg(sgt, sg, i) {
pg = vmalloc_to_page(data);
if (!pg) {
sg_free_table(sgt);
@@ -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_gpu_fence *fence,
+ int elemcnt,
+ struct scatterlist **sgs,
+ int outcnt,
+ int incnt)
{
struct virtqueue *vq = vgdev->ctrlq.vq;
int ret, idx;
@@ -335,7 +335,7 @@ static void virtio_gpu_queue_ctrl_sgs(struct virtio_gpu_device *vgdev,
if (fence && vbuf->objs)
virtio_gpu_array_unlock_resv(vbuf->objs);
free_vbuf(vgdev, vbuf);
- return;
+ return -1;
}
if (vgdev->has_indirect)
@@ -373,15 +373,16 @@ again:
spin_unlock(&vgdev->ctrlq.qlock);
drm_dev_exit(idx);
+ return 0;
}
-static void virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev,
- struct virtio_gpu_vbuffer *vbuf,
- struct virtio_gpu_fence *fence)
+static int virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev,
+ struct virtio_gpu_vbuffer *vbuf,
+ struct virtio_gpu_fence *fence)
{
struct scatterlist *sgs[3], vcmd, vout, vresp;
struct sg_table *sgt = NULL;
- int elemcnt = 0, outcnt = 0, incnt = 0;
+ int elemcnt = 0, outcnt = 0, incnt = 0, ret;
/* set up vcmd */
sg_init_one(&vcmd, vbuf->buf, vbuf->size);
@@ -398,7 +399,7 @@ static void virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev,
if (!sgt) {
if (fence && vbuf->objs)
virtio_gpu_array_unlock_resv(vbuf->objs);
- return;
+ return -1;
}
elemcnt += sg_ents;
@@ -419,13 +420,14 @@ static void virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev,
incnt++;
}
- virtio_gpu_queue_ctrl_sgs(vgdev, vbuf, fence, elemcnt, sgs, outcnt,
- incnt);
+ ret = virtio_gpu_queue_ctrl_sgs(vgdev, vbuf, fence, elemcnt, sgs, outcnt,
+ incnt);
if (sgt) {
sg_free_table(sgt);
kfree(sgt);
}
+ return ret;
}
void virtio_gpu_notify(struct virtio_gpu_device *vgdev)
@@ -444,10 +446,10 @@ void virtio_gpu_notify(struct virtio_gpu_device *vgdev)
virtqueue_notify(vgdev->ctrlq.vq);
}
-static void virtio_gpu_queue_ctrl_buffer(struct virtio_gpu_device *vgdev,
- struct virtio_gpu_vbuffer *vbuf)
+static int virtio_gpu_queue_ctrl_buffer(struct virtio_gpu_device *vgdev,
+ struct virtio_gpu_vbuffer *vbuf)
{
- virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, NULL);
+ return virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, NULL);
}
static void virtio_gpu_queue_cursor(struct virtio_gpu_device *vgdev,
@@ -534,6 +536,7 @@ void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev,
{
struct virtio_gpu_resource_unref *cmd_p;
struct virtio_gpu_vbuffer *vbuf;
+ int ret;
cmd_p = virtio_gpu_alloc_cmd_cb(vgdev, &vbuf, sizeof(*cmd_p),
virtio_gpu_cmd_unref_cb);
@@ -543,7 +546,9 @@ void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev,
cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle);
vbuf->resp_cb_data = bo;
- virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
+ ret = virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
+ if (ret < 0)
+ virtio_gpu_cleanup_object(bo);
}
void virtio_gpu_cmd_set_scanout(struct virtio_gpu_device *vgdev,
@@ -603,9 +608,8 @@ void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev,
struct virtio_gpu_object_shmem *shmem = to_virtio_gpu_shmem(bo);
if (use_dma_api)
- dma_sync_sg_for_device(vgdev->vdev->dev.parent,
- shmem->pages->sgl, shmem->pages->nents,
- DMA_TO_DEVICE);
+ dma_sync_sgtable_for_device(vgdev->vdev->dev.parent,
+ shmem->pages, DMA_TO_DEVICE);
cmd_p = virtio_gpu_alloc_cmd(vgdev, &vbuf, sizeof(*cmd_p));
memset(cmd_p, 0, sizeof(*cmd_p));
@@ -684,9 +688,13 @@ static void virtio_gpu_cmd_get_capset_info_cb(struct virtio_gpu_device *vgdev,
int i = le32_to_cpu(cmd->capset_index);
spin_lock(&vgdev->display_info_lock);
- vgdev->capsets[i].id = le32_to_cpu(resp->capset_id);
- vgdev->capsets[i].max_version = le32_to_cpu(resp->capset_max_version);
- vgdev->capsets[i].max_size = le32_to_cpu(resp->capset_max_size);
+ if (vgdev->capsets) {
+ vgdev->capsets[i].id = le32_to_cpu(resp->capset_id);
+ vgdev->capsets[i].max_version = le32_to_cpu(resp->capset_max_version);
+ vgdev->capsets[i].max_size = le32_to_cpu(resp->capset_max_size);
+ } else {
+ DRM_ERROR("invalid capset memory.");
+ }
spin_unlock(&vgdev->display_info_lock);
wake_up(&vgdev->resp_wq);
}
@@ -1019,9 +1027,8 @@ void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev,
struct virtio_gpu_object_shmem *shmem = to_virtio_gpu_shmem(bo);
if (use_dma_api)
- dma_sync_sg_for_device(vgdev->vdev->dev.parent,
- shmem->pages->sgl, shmem->pages->nents,
- DMA_TO_DEVICE);
+ dma_sync_sgtable_for_device(vgdev->vdev->dev.parent,
+ shmem->pages, DMA_TO_DEVICE);
cmd_p = virtio_gpu_alloc_cmd(vgdev, &vbuf, sizeof(*cmd_p));
memset(cmd_p, 0, sizeof(*cmd_p));
@@ -1107,3 +1114,58 @@ void virtio_gpu_cursor_ping(struct virtio_gpu_device *vgdev,
memcpy(cur_p, &output->cursor, sizeof(output->cursor));
virtio_gpu_queue_cursor(vgdev, vbuf);
}
+
+static void virtio_gpu_cmd_resource_uuid_cb(struct virtio_gpu_device *vgdev,
+ struct virtio_gpu_vbuffer *vbuf)
+{
+ struct virtio_gpu_object *obj =
+ gem_to_virtio_gpu_obj(vbuf->objs->objs[0]);
+ struct virtio_gpu_resp_resource_uuid *resp =
+ (struct virtio_gpu_resp_resource_uuid *)vbuf->resp_buf;
+ uint32_t resp_type = le32_to_cpu(resp->hdr.type);
+
+ spin_lock(&vgdev->resource_export_lock);
+ WARN_ON(obj->uuid_state != UUID_INITIALIZING);
+
+ if (resp_type == VIRTIO_GPU_RESP_OK_RESOURCE_UUID &&
+ obj->uuid_state == UUID_INITIALIZING) {
+ memcpy(&obj->uuid.b, resp->uuid, sizeof(obj->uuid.b));
+ obj->uuid_state = UUID_INITIALIZED;
+ } else {
+ obj->uuid_state = UUID_INITIALIZATION_FAILED;
+ }
+ spin_unlock(&vgdev->resource_export_lock);
+
+ wake_up_all(&vgdev->resp_wq);
+}
+
+int
+virtio_gpu_cmd_resource_assign_uuid(struct virtio_gpu_device *vgdev,
+ struct virtio_gpu_object_array *objs)
+{
+ struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(objs->objs[0]);
+ struct virtio_gpu_resource_assign_uuid *cmd_p;
+ struct virtio_gpu_vbuffer *vbuf;
+ struct virtio_gpu_resp_resource_uuid *resp_buf;
+
+ resp_buf = kzalloc(sizeof(*resp_buf), GFP_KERNEL);
+ if (!resp_buf) {
+ spin_lock(&vgdev->resource_export_lock);
+ bo->uuid_state = UUID_INITIALIZATION_FAILED;
+ spin_unlock(&vgdev->resource_export_lock);
+ virtio_gpu_array_put_free(objs);
+ return -ENOMEM;
+ }
+
+ cmd_p = virtio_gpu_alloc_cmd_resp
+ (vgdev, virtio_gpu_cmd_resource_uuid_cb, &vbuf, sizeof(*cmd_p),
+ sizeof(struct virtio_gpu_resp_resource_uuid), resp_buf);
+ memset(cmd_p, 0, sizeof(*cmd_p));
+
+ cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_RESOURCE_ASSIGN_UUID);
+ cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle);
+
+ vbuf->objs = objs;
+ virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
+ return 0;
+}
generated by cgit (git 2.34.1) at 2025-04-04 05:30:43 +0000