From d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 02:45:28 +0000
Subject: [PATCH] add boot partition size
---
kernel/drivers/gpu/drm/virtio/virtgpu_gem.c | 215 ++++++++++++++++++++++++++++++++++++++++-------------
1 files changed, 160 insertions(+), 55 deletions(-)
diff --git a/kernel/drivers/gpu/drm/virtio/virtgpu_gem.c b/kernel/drivers/gpu/drm/virtio/virtgpu_gem.c
index a607bd1..8502400 100644
--- a/kernel/drivers/gpu/drm/virtio/virtgpu_gem.c
+++ b/kernel/drivers/gpu/drm/virtio/virtgpu_gem.c
@@ -23,57 +23,36 @@
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
-#include <drm/drmP.h>
+#include <drm/drm_file.h>
+#include <drm/drm_fourcc.h>
+
#include "virtgpu_drv.h"
-void virtio_gpu_gem_free_object(struct drm_gem_object *gem_obj)
-{
- struct virtio_gpu_object *obj = gem_to_virtio_gpu_obj(gem_obj);
-
- if (obj)
- virtio_gpu_object_unref(&obj);
-}
-
-struct virtio_gpu_object*
-virtio_gpu_alloc_object(struct drm_device *dev,
- struct virtio_gpu_object_params *params,
- struct virtio_gpu_fence *fence)
+static int virtio_gpu_gem_create(struct drm_file *file,
+ struct drm_device *dev,
+ struct virtio_gpu_object_params *params,
+ struct drm_gem_object **obj_p,
+ uint32_t *handle_p)
{
struct virtio_gpu_device *vgdev = dev->dev_private;
struct virtio_gpu_object *obj;
int ret;
-
- ret = virtio_gpu_object_create(vgdev, params, &obj, fence);
- if (ret)
- return ERR_PTR(ret);
-
- return obj;
-}
-
-int virtio_gpu_gem_create(struct drm_file *file,
- struct drm_device *dev,
- struct virtio_gpu_object_params *params,
- struct drm_gem_object **obj_p,
- uint32_t *handle_p)
-{
- struct virtio_gpu_object *obj;
- int ret;
u32 handle;
- obj = virtio_gpu_alloc_object(dev, params, NULL);
- if (IS_ERR(obj))
- return PTR_ERR(obj);
+ ret = virtio_gpu_object_create(vgdev, params, &obj, NULL);
+ if (ret < 0)
+ return ret;
- ret = drm_gem_handle_create(file, &obj->gem_base, &handle);
+ ret = drm_gem_handle_create(file, &obj->base.base, &handle);
if (ret) {
- drm_gem_object_release(&obj->gem_base);
+ drm_gem_object_release(&obj->base.base);
return ret;
}
- *obj_p = &obj->gem_base;
+ *obj_p = &obj->base.base;
/* drop reference from allocate - handle holds it now */
- drm_gem_object_put_unlocked(&obj->gem_base);
+ drm_gem_object_put(&obj->base.base);
*handle_p = handle;
return 0;
@@ -88,7 +67,10 @@
int ret;
uint32_t pitch;
- pitch = args->width * ((args->bpp + 1) / 8);
+ if (args->bpp != 32)
+ return -EINVAL;
+
+ pitch = args->width * 4;
args->size = pitch * args->height;
args->size = ALIGN(args->size, PAGE_SIZE);
@@ -114,15 +96,13 @@
uint32_t handle, uint64_t *offset_p)
{
struct drm_gem_object *gobj;
- struct virtio_gpu_object *obj;
BUG_ON(!offset_p);
gobj = drm_gem_object_lookup(file_priv, handle);
if (gobj == NULL)
return -ENOENT;
- obj = gem_to_virtio_gpu_obj(gobj);
- *offset_p = virtio_gpu_object_mmap_offset(obj);
- drm_gem_object_put_unlocked(gobj);
+ *offset_p = drm_vma_node_offset_addr(&gobj->vma_node);
+ drm_gem_object_put(gobj);
return 0;
}
@@ -131,19 +111,25 @@
{
struct virtio_gpu_device *vgdev = obj->dev->dev_private;
struct virtio_gpu_fpriv *vfpriv = file->driver_priv;
- struct virtio_gpu_object *qobj = gem_to_virtio_gpu_obj(obj);
- int r;
+ struct virtio_gpu_object_array *objs;
if (!vgdev->has_virgl_3d)
- return 0;
+ goto out_notify;
- r = virtio_gpu_object_reserve(qobj, false);
- if (r)
- return r;
+ /* the context might still be missing when the first ioctl is
+ * DRM_IOCTL_MODE_CREATE_DUMB or DRM_IOCTL_PRIME_FD_TO_HANDLE
+ */
+ virtio_gpu_create_context(obj->dev, file);
+
+ objs = virtio_gpu_array_alloc(1);
+ if (!objs)
+ return -ENOMEM;
+ virtio_gpu_array_add_obj(objs, obj);
virtio_gpu_cmd_context_attach_resource(vgdev, vfpriv->ctx_id,
- qobj->hw_res_handle);
- virtio_gpu_object_unreserve(qobj);
+ objs);
+out_notify:
+ virtio_gpu_notify(vgdev);
return 0;
}
@@ -152,17 +138,136 @@
{
struct virtio_gpu_device *vgdev = obj->dev->dev_private;
struct virtio_gpu_fpriv *vfpriv = file->driver_priv;
- struct virtio_gpu_object *qobj = gem_to_virtio_gpu_obj(obj);
- int r;
+ struct virtio_gpu_object_array *objs;
if (!vgdev->has_virgl_3d)
return;
- r = virtio_gpu_object_reserve(qobj, false);
- if (r)
+ objs = virtio_gpu_array_alloc(1);
+ if (!objs)
return;
+ virtio_gpu_array_add_obj(objs, obj);
virtio_gpu_cmd_context_detach_resource(vgdev, vfpriv->ctx_id,
- qobj->hw_res_handle);
- virtio_gpu_object_unreserve(qobj);
+ objs);
+ virtio_gpu_notify(vgdev);
+}
+
+struct virtio_gpu_object_array *virtio_gpu_array_alloc(u32 nents)
+{
+ struct virtio_gpu_object_array *objs;
+
+ objs = kmalloc(struct_size(objs, objs, nents), GFP_KERNEL);
+ if (!objs)
+ return NULL;
+
+ objs->nents = 0;
+ objs->total = nents;
+ return objs;
+}
+
+static void virtio_gpu_array_free(struct virtio_gpu_object_array *objs)
+{
+ kfree(objs);
+}
+
+struct virtio_gpu_object_array*
+virtio_gpu_array_from_handles(struct drm_file *drm_file, u32 *handles, u32 nents)
+{
+ struct virtio_gpu_object_array *objs;
+ u32 i;
+
+ objs = virtio_gpu_array_alloc(nents);
+ if (!objs)
+ return NULL;
+
+ for (i = 0; i < nents; i++) {
+ objs->objs[i] = drm_gem_object_lookup(drm_file, handles[i]);
+ if (!objs->objs[i]) {
+ objs->nents = i;
+ virtio_gpu_array_put_free(objs);
+ return NULL;
+ }
+ }
+ objs->nents = i;
+ return objs;
+}
+
+void virtio_gpu_array_add_obj(struct virtio_gpu_object_array *objs,
+ struct drm_gem_object *obj)
+{
+ if (WARN_ON_ONCE(objs->nents == objs->total))
+ return;
+
+ drm_gem_object_get(obj);
+ objs->objs[objs->nents] = obj;
+ objs->nents++;
+}
+
+int virtio_gpu_array_lock_resv(struct virtio_gpu_object_array *objs)
+{
+ int ret;
+
+ if (objs->nents == 1) {
+ ret = dma_resv_lock_interruptible(objs->objs[0]->resv, NULL);
+ } else {
+ ret = drm_gem_lock_reservations(objs->objs, objs->nents,
+ &objs->ticket);
+ }
+ return ret;
+}
+
+void virtio_gpu_array_unlock_resv(struct virtio_gpu_object_array *objs)
+{
+ if (objs->nents == 1) {
+ dma_resv_unlock(objs->objs[0]->resv);
+ } else {
+ drm_gem_unlock_reservations(objs->objs, objs->nents,
+ &objs->ticket);
+ }
+}
+
+void virtio_gpu_array_add_fence(struct virtio_gpu_object_array *objs,
+ struct dma_fence *fence)
+{
+ int i;
+
+ for (i = 0; i < objs->nents; i++)
+ dma_resv_add_excl_fence(objs->objs[i]->resv, fence);
+}
+
+void virtio_gpu_array_put_free(struct virtio_gpu_object_array *objs)
+{
+ u32 i;
+
+ for (i = 0; i < objs->nents; i++)
+ drm_gem_object_put(objs->objs[i]);
+ virtio_gpu_array_free(objs);
+}
+
+void virtio_gpu_array_put_free_delayed(struct virtio_gpu_device *vgdev,
+ struct virtio_gpu_object_array *objs)
+{
+ spin_lock(&vgdev->obj_free_lock);
+ list_add_tail(&objs->next, &vgdev->obj_free_list);
+ spin_unlock(&vgdev->obj_free_lock);
+ schedule_work(&vgdev->obj_free_work);
+}
+
+void virtio_gpu_array_put_free_work(struct work_struct *work)
+{
+ struct virtio_gpu_device *vgdev =
+ container_of(work, struct virtio_gpu_device, obj_free_work);
+ struct virtio_gpu_object_array *objs;
+
+ spin_lock(&vgdev->obj_free_lock);
+ while (!list_empty(&vgdev->obj_free_list)) {
+ objs = list_first_entry(&vgdev->obj_free_list,
+ struct virtio_gpu_object_array, next);
+ list_del(&objs->next);
+ spin_unlock(&vgdev->obj_free_lock);
+ virtio_gpu_array_put_free(objs);
+ spin_lock(&vgdev->obj_free_lock);
+ }
+ spin_unlock(&vgdev->obj_free_lock);
}
--
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