ttm increasingly gets into the way while hacking on virtio-gpu memory management. It also overkill for what virtio-gpu needs. Lets get rid of it.
v7: - rebase to latest drm-misc-next - reorder patches: switch all virtio commands to object array helpers first. then drop ttm, to make sure we don't release objects still in use. - misc fixes. v6: - largely rewrite fencing logic, using the virtio_gpu_array_* helpers - add more patches to the series. v5: - fence bugfixes. - minor optimizations. v4: - make gem array helpers private to virtio. - misc minor fixes. v3: - add gem array helpers. - rework fencing.
cheers, Gerd
Gerd Hoffmann (18): drm/virtio: pass gem reservation object to ttm init drm/virtio: switch virtio_gpu_wait_ioctl() to gem helper. drm/virtio: simplify cursor updates drm/virtio: remove virtio_gpu_object_wait drm/virtio: drop no_wait argument from virtio_gpu_object_reserve drm/virtio: remove ttm calls from in virtio_gpu_object_{reserve,unreserve} drm/virtio: add virtio_gpu_object_array & helpers drm/virtio: rework virtio_gpu_execbuffer_ioctl fencing drm/virtio: rework virtio_gpu_object_create fencing drm/virtio: rework virtio_gpu_transfer_from_host_ioctl fencing drm/virtio: rework virtio_gpu_transfer_to_host_ioctl fencing drm/virtio: rework virtio_gpu_cmd_context_{attach,detach}_resource drm/virtio: drop virtio_gpu_object_list_validate/virtio_gpu_unref_list drm/virtio: switch from ttm to gem shmem helpers drm/virtio: remove virtio_gpu_alloc_object drm/virtio: drop virtio_gpu_object_{ref,unref} drm/virtio: drop virtio_gpu_object_{reserve,unreserve} drm/virtio: add fence sanity check
drivers/gpu/drm/virtio/virtgpu_drv.h | 123 +++------- drivers/gpu/drm/virtio/virtgpu_drv.c | 20 +- drivers/gpu/drm/virtio/virtgpu_fence.c | 4 + drivers/gpu/drm/virtio/virtgpu_gem.c | 157 ++++++++---- drivers/gpu/drm/virtio/virtgpu_ioctl.c | 224 ++++++----------- drivers/gpu/drm/virtio/virtgpu_kms.c | 9 - drivers/gpu/drm/virtio/virtgpu_object.c | 220 +++++------------ drivers/gpu/drm/virtio/virtgpu_plane.c | 34 +-- drivers/gpu/drm/virtio/virtgpu_prime.c | 37 --- drivers/gpu/drm/virtio/virtgpu_ttm.c | 305 ------------------------ drivers/gpu/drm/virtio/virtgpu_vq.c | 78 ++++-- drivers/gpu/drm/virtio/Kconfig | 2 +- drivers/gpu/drm/virtio/Makefile | 2 +- 13 files changed, 373 insertions(+), 842 deletions(-) delete mode 100644 drivers/gpu/drm/virtio/virtgpu_ttm.c
With this gem and ttm will use the same reservation object, so mixing and matching ttm / gem reservation helpers should work fine.
Signed-off-by: Gerd Hoffmann kraxel@redhat.com Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch --- drivers/gpu/drm/virtio/virtgpu_object.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c index b2da31310d24..242766d644a7 100644 --- a/drivers/gpu/drm/virtio/virtgpu_object.c +++ b/drivers/gpu/drm/virtio/virtgpu_object.c @@ -132,7 +132,8 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev, virtio_gpu_init_ttm_placement(bo); ret = ttm_bo_init(&vgdev->mman.bdev, &bo->tbo, params->size, ttm_bo_type_device, &bo->placement, 0, - true, acc_size, NULL, NULL, + true, acc_size, NULL, + bo->gem_base.resv, &virtio_gpu_ttm_bo_destroy); /* ttm_bo_init failure will call the destroy */ if (ret != 0)
Use drm_gem_reservation_object_wait() in virtio_gpu_wait_ioctl(). This also makes the ioctl run lockless.
v5: handle lookup failure. v2: use reservation_object_test_signaled_rcu for VIRTGPU_WAIT_NOWAIT.
Signed-off-by: Gerd Hoffmann kraxel@redhat.com Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch --- drivers/gpu/drm/virtio/virtgpu_ioctl.c | 28 ++++++++++++-------------- 1 file changed, 13 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c index d379d2e7e3ef..09024b18d407 100644 --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c @@ -466,23 +466,21 @@ static int virtio_gpu_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file) { struct drm_virtgpu_3d_wait *args = data; - struct drm_gem_object *gobj = NULL; - struct virtio_gpu_object *qobj = NULL; + struct drm_gem_object *obj; + long timeout = 15 * HZ; int ret; - bool nowait = false;
- gobj = drm_gem_object_lookup(file, args->handle); - if (gobj == NULL) - return -ENOENT; - - qobj = gem_to_virtio_gpu_obj(gobj); - - if (args->flags & VIRTGPU_WAIT_NOWAIT) - nowait = true; - ret = virtio_gpu_object_wait(qobj, nowait); - - drm_gem_object_put_unlocked(gobj); - return ret; + if (args->flags & VIRTGPU_WAIT_NOWAIT) { + obj = drm_gem_object_lookup(file, args->handle); + if (obj == NULL) + return -ENOENT; + ret = reservation_object_test_signaled_rcu(obj->resv, true); + drm_gem_object_put_unlocked(obj); + return ret ? 0 : -EBUSY; + } + + return drm_gem_reservation_object_wait(file, args->handle, + true, timeout); }
static int virtio_gpu_get_caps_ioctl(struct drm_device *dev,
No need to do the reservation dance, we can just wait on the fence directly.
Signed-off-by: Gerd Hoffmann kraxel@redhat.com Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch --- drivers/gpu/drm/virtio/virtgpu_plane.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c index f96c8296307e..11539b66c6f2 100644 --- a/drivers/gpu/drm/virtio/virtgpu_plane.c +++ b/drivers/gpu/drm/virtio/virtgpu_plane.c @@ -186,7 +186,6 @@ static void virtio_gpu_cursor_plane_update(struct drm_plane *plane, struct virtio_gpu_framebuffer *vgfb; struct virtio_gpu_object *bo = NULL; uint32_t handle; - int ret = 0;
if (plane->state->crtc) output = drm_crtc_to_virtio_gpu_output(plane->state->crtc); @@ -210,15 +209,9 @@ static void virtio_gpu_cursor_plane_update(struct drm_plane *plane, cpu_to_le32(plane->state->crtc_w), cpu_to_le32(plane->state->crtc_h), 0, 0, vgfb->fence); - ret = virtio_gpu_object_reserve(bo, false); - if (!ret) { - reservation_object_add_excl_fence(bo->tbo.resv, - &vgfb->fence->f); - dma_fence_put(&vgfb->fence->f); - vgfb->fence = NULL; - virtio_gpu_object_unreserve(bo); - virtio_gpu_object_wait(bo, false); - } + dma_fence_wait(&vgfb->fence->f, true); + dma_fence_put(&vgfb->fence->f); + vgfb->fence = NULL; }
if (plane->state->fb != old_state->fb) {
No users left.
Signed-off-by: Gerd Hoffmann kraxel@redhat.com Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch --- drivers/gpu/drm/virtio/virtgpu_drv.h | 1 - drivers/gpu/drm/virtio/virtgpu_object.c | 13 ------------- 2 files changed, 14 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index f4ecea6054ba..1496e3fc1c47 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -364,7 +364,6 @@ int virtio_gpu_object_kmap(struct virtio_gpu_object *bo); int virtio_gpu_object_get_sg_table(struct virtio_gpu_device *qdev, struct virtio_gpu_object *bo); void virtio_gpu_object_free_sg_table(struct virtio_gpu_object *bo); -int virtio_gpu_object_wait(struct virtio_gpu_object *bo, bool no_wait);
/* virtgpu_prime.c */ struct sg_table *virtgpu_gem_prime_get_sg_table(struct drm_gem_object *obj); diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c index 242766d644a7..82bfbf983fd2 100644 --- a/drivers/gpu/drm/virtio/virtgpu_object.c +++ b/drivers/gpu/drm/virtio/virtgpu_object.c @@ -233,16 +233,3 @@ void virtio_gpu_object_free_sg_table(struct virtio_gpu_object *bo) kfree(bo->pages); bo->pages = NULL; } - -int virtio_gpu_object_wait(struct virtio_gpu_object *bo, bool no_wait) -{ - int r; - - r = ttm_bo_reserve(&bo->tbo, true, no_wait, NULL); - if (unlikely(r != 0)) - return r; - r = ttm_bo_wait(&bo->tbo, true, no_wait); - ttm_bo_unreserve(&bo->tbo); - return r; -} -
All callers pass no_wait = false.
Signed-off-by: Gerd Hoffmann kraxel@redhat.com Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch --- drivers/gpu/drm/virtio/virtgpu_drv.h | 5 ++--- drivers/gpu/drm/virtio/virtgpu_gem.c | 4 ++-- drivers/gpu/drm/virtio/virtgpu_ioctl.c | 4 ++-- 3 files changed, 6 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index 1496e3fc1c47..cf6be2cfb812 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -398,12 +398,11 @@ static inline u64 virtio_gpu_object_mmap_offset(struct virtio_gpu_object *bo) return drm_vma_node_offset_addr(&bo->tbo.vma_node); }
-static inline int virtio_gpu_object_reserve(struct virtio_gpu_object *bo, - bool no_wait) +static inline int virtio_gpu_object_reserve(struct virtio_gpu_object *bo) { int r;
- r = ttm_bo_reserve(&bo->tbo, true, no_wait, NULL); + r = ttm_bo_reserve(&bo->tbo, true, false, NULL); if (unlikely(r != 0)) { if (r != -ERESTARTSYS) { struct virtio_gpu_device *qdev = diff --git a/drivers/gpu/drm/virtio/virtgpu_gem.c b/drivers/gpu/drm/virtio/virtgpu_gem.c index 292566146814..6fe6f72f64d1 100644 --- a/drivers/gpu/drm/virtio/virtgpu_gem.c +++ b/drivers/gpu/drm/virtio/virtgpu_gem.c @@ -142,7 +142,7 @@ int virtio_gpu_gem_object_open(struct drm_gem_object *obj, if (!vgdev->has_virgl_3d) return 0;
- r = virtio_gpu_object_reserve(qobj, false); + r = virtio_gpu_object_reserve(qobj); if (r) return r;
@@ -163,7 +163,7 @@ void virtio_gpu_gem_object_close(struct drm_gem_object *obj, if (!vgdev->has_virgl_3d) return;
- r = virtio_gpu_object_reserve(qobj, false); + r = virtio_gpu_object_reserve(qobj); if (r) return;
diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c index 09024b18d407..f1b646fa4238 100644 --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c @@ -377,7 +377,7 @@ static int virtio_gpu_transfer_from_host_ioctl(struct drm_device *dev,
qobj = gem_to_virtio_gpu_obj(gobj);
- ret = virtio_gpu_object_reserve(qobj, false); + ret = virtio_gpu_object_reserve(qobj); if (ret) goto out;
@@ -427,7 +427,7 @@ static int virtio_gpu_transfer_to_host_ioctl(struct drm_device *dev, void *data,
qobj = gem_to_virtio_gpu_obj(gobj);
- ret = virtio_gpu_object_reserve(qobj, false); + ret = virtio_gpu_object_reserve(qobj); if (ret) goto out;
Call reservation_object_* directly instead of using ttm_bo_{reserve,unreserve}.
v4: check for EINTR only. v3: check for EINTR too.
Signed-off-by: Gerd Hoffmann kraxel@redhat.com Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch --- drivers/gpu/drm/virtio/virtgpu_drv.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index cf6be2cfb812..3473b602ec35 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -402,9 +402,9 @@ static inline int virtio_gpu_object_reserve(struct virtio_gpu_object *bo) { int r;
- r = ttm_bo_reserve(&bo->tbo, true, false, NULL); + r = reservation_object_lock_interruptible(bo->gem_base.resv, NULL); if (unlikely(r != 0)) { - if (r != -ERESTARTSYS) { + if (r != -EINTR) { struct virtio_gpu_device *qdev = bo->gem_base.dev->dev_private; dev_err(qdev->dev, "%p reserve failed\n", bo); @@ -416,7 +416,7 @@ static inline int virtio_gpu_object_reserve(struct virtio_gpu_object *bo)
static inline void virtio_gpu_object_unreserve(struct virtio_gpu_object *bo) { - ttm_bo_unreserve(&bo->tbo); + reservation_object_unlock(bo->gem_base.resv); }
/* virgl debufs */
Some helper functions to manage an array of gem objects.
v6: - add ticket to struct virtio_gpu_object_array. - add virtio_gpu_array_{lock,unlock}_resv helpers. - add virtio_gpu_array_add_fence helper. v5: some small optimizations (Chia-I Wu). v4: make them virtio-private instead of generic helpers.
Signed-off-by: Gerd Hoffmann kraxel@redhat.com --- drivers/gpu/drm/virtio/virtgpu_drv.h | 17 +++++ drivers/gpu/drm/virtio/virtgpu_gem.c | 94 ++++++++++++++++++++++++++++ 2 files changed, 111 insertions(+)
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index 3473b602ec35..bafa06e69032 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -84,6 +84,12 @@ struct virtio_gpu_object { #define gem_to_virtio_gpu_obj(gobj) \ container_of((gobj), struct virtio_gpu_object, gem_base)
+struct virtio_gpu_object_array { + struct ww_acquire_ctx ticket; + u32 nents, total; + struct drm_gem_object *objs[]; +}; + struct virtio_gpu_vbuffer; struct virtio_gpu_device;
@@ -251,6 +257,17 @@ int virtio_gpu_mode_dumb_mmap(struct drm_file *file_priv, struct drm_device *dev, uint32_t handle, uint64_t *offset_p);
+struct virtio_gpu_object_array *virtio_gpu_array_alloc(u32 nents); +struct virtio_gpu_object_array* +virtio_gpu_array_from_handles(struct drm_file *drm_file, u32 *handles, u32 nents); +void virtio_gpu_array_add_obj(struct virtio_gpu_object_array *objs, + struct drm_gem_object *obj); +int virtio_gpu_array_lock_resv(struct virtio_gpu_object_array *objs); +void virtio_gpu_array_unlock_resv(struct virtio_gpu_object_array *objs); +void virtio_gpu_array_add_fence(struct virtio_gpu_object_array *objs, + struct dma_fence *fence); +void virtio_gpu_array_put_free(struct virtio_gpu_object_array *objs); + /* virtio vg */ int virtio_gpu_alloc_vbufs(struct virtio_gpu_device *vgdev); void virtio_gpu_free_vbufs(struct virtio_gpu_device *vgdev); diff --git a/drivers/gpu/drm/virtio/virtgpu_gem.c b/drivers/gpu/drm/virtio/virtgpu_gem.c index 6fe6f72f64d1..f3c9419858b7 100644 --- a/drivers/gpu/drm/virtio/virtgpu_gem.c +++ b/drivers/gpu/drm/virtio/virtgpu_gem.c @@ -171,3 +171,97 @@ void virtio_gpu_gem_object_close(struct drm_gem_object *obj, qobj->hw_res_handle); virtio_gpu_object_unreserve(qobj); } + +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); + 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 = reservation_object_lock(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) { + reservation_object_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++) + reservation_object_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_unlocked(objs->objs[i]); + virtio_gpu_array_free(objs); +}
Rework fencing workflow, starting with virtio_gpu_execbuffer_ioctl. Stop using ttm helpers, use the virtio_gpu_array_* helpers (which work on the reservation objects directly) instead.
Also store the object array in struct virtio_gpu_vbuffer, so we explicitly keep a reference of all buffers used instead of depending on ttm_bo_put() checking whenever the object is actually idle before releasing it.
New workflow:
(1) All gem objects needed by a command are added to a virtio_gpu_object_array. (2) All reservation objects will be locked (virtio_gpu_array_lock_resv). (3) virtio_gpu_fence_emit() completes fence initialization. (4) fence gets added to the objects, reservation objects are unlocked (virtio_gpu_array_add_fence, virtio_gpu_array_unlock_resv). (5) virtio command is submitted to the host. (6) The completion callback (virtio_gpu_dequeue_ctrl_func) will drop object references and free virtio_gpu_object_array.
v6: rewrite most of the patch.
Signed-off-by: Gerd Hoffmann kraxel@redhat.com --- drivers/gpu/drm/virtio/virtgpu_drv.h | 6 ++- drivers/gpu/drm/virtio/virtgpu_ioctl.c | 56 +++++++++----------------- drivers/gpu/drm/virtio/virtgpu_vq.c | 21 +++++++--- 3 files changed, 38 insertions(+), 45 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index bafa06e69032..6e02f6f7cb5a 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -121,9 +121,9 @@ struct virtio_gpu_vbuffer {
char *resp_buf; int resp_size; - virtio_gpu_resp_cb resp_cb;
+ struct virtio_gpu_object_array *objs; struct list_head list; };
@@ -318,7 +318,9 @@ void virtio_gpu_cmd_context_detach_resource(struct virtio_gpu_device *vgdev, uint32_t resource_id); void virtio_gpu_cmd_submit(struct virtio_gpu_device *vgdev, void *data, uint32_t data_size, - uint32_t ctx_id, struct virtio_gpu_fence *fence); + uint32_t ctx_id, + struct virtio_gpu_object_array *objs, + struct virtio_gpu_fence *fence); void virtio_gpu_cmd_transfer_from_host_3d(struct virtio_gpu_device *vgdev, uint32_t resource_id, uint32_t ctx_id, uint64_t offset, uint32_t level, diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c index f1b646fa4238..a3e357f75099 100644 --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c @@ -107,16 +107,11 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data, struct drm_virtgpu_execbuffer *exbuf = data; struct virtio_gpu_device *vgdev = dev->dev_private; struct virtio_gpu_fpriv *vfpriv = drm_file->driver_priv; - struct drm_gem_object *gobj; struct virtio_gpu_fence *out_fence; - struct virtio_gpu_object *qobj; int ret; uint32_t *bo_handles = NULL; void __user *user_bo_handles = NULL; - struct list_head validate_list; - struct ttm_validate_buffer *buflist = NULL; - int i; - struct ww_acquire_ctx ticket; + struct virtio_gpu_object_array *buflist = NULL; struct sync_file *sync_file; int in_fence_fd = exbuf->fence_fd; int out_fence_fd = -1; @@ -157,15 +152,10 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data, return out_fence_fd; }
- INIT_LIST_HEAD(&validate_list); if (exbuf->num_bo_handles) { - bo_handles = kvmalloc_array(exbuf->num_bo_handles, - sizeof(uint32_t), GFP_KERNEL); - buflist = kvmalloc_array(exbuf->num_bo_handles, - sizeof(struct ttm_validate_buffer), - GFP_KERNEL | __GFP_ZERO); - if (!bo_handles || !buflist) { + sizeof(uint32_t), GFP_KERNEL); + if (!bo_handles) { ret = -ENOMEM; goto out_unused_fd; } @@ -177,25 +167,21 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data, goto out_unused_fd; }
- for (i = 0; i < exbuf->num_bo_handles; i++) { - gobj = drm_gem_object_lookup(drm_file, bo_handles[i]); - if (!gobj) { - ret = -ENOENT; - goto out_unused_fd; - } - - qobj = gem_to_virtio_gpu_obj(gobj); - buflist[i].bo = &qobj->tbo; - - list_add(&buflist[i].head, &validate_list); + buflist = virtio_gpu_array_from_handles(drm_file, bo_handles, + exbuf->num_bo_handles); + if (!buflist) { + ret = -ENOENT; + goto out_unused_fd; } kvfree(bo_handles); bo_handles = NULL; }
- ret = virtio_gpu_object_list_validate(&ticket, &validate_list); - if (ret) - goto out_free; + if (buflist) { + ret = virtio_gpu_array_lock_resv(buflist); + if (ret) + goto out_unused_fd; + }
buf = memdup_user(u64_to_user_ptr(exbuf->command), exbuf->size); if (IS_ERR(buf)) { @@ -222,24 +208,18 @@ static int virtio_gpu_execbuffer_ioctl(struct drm_device *dev, void *data, }
virtio_gpu_cmd_submit(vgdev, buf, exbuf->size, - vfpriv->ctx_id, out_fence); - - ttm_eu_fence_buffer_objects(&ticket, &validate_list, &out_fence->f); - - /* fence the command bo */ - virtio_gpu_unref_list(&validate_list); - kvfree(buflist); + vfpriv->ctx_id, buflist, out_fence); return 0;
out_memdup: kfree(buf); out_unresv: - ttm_eu_backoff_reservation(&ticket, &validate_list); -out_free: - virtio_gpu_unref_list(&validate_list); + if (buflist) + virtio_gpu_array_unlock_resv(buflist); out_unused_fd: kvfree(bo_handles); - kvfree(buflist); + if (buflist) + virtio_gpu_array_put_free(buflist);
if (out_fence_fd >= 0) put_unused_fd(out_fence_fd); diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c index 7ac20490e1b4..24245c37d69f 100644 --- a/drivers/gpu/drm/virtio/virtgpu_vq.c +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c @@ -192,7 +192,7 @@ void virtio_gpu_dequeue_ctrl_func(struct work_struct *work) } while (!virtqueue_enable_cb(vgdev->ctrlq.vq)); spin_unlock(&vgdev->ctrlq.qlock);
- list_for_each_entry_safe(entry, tmp, &reclaim_list, list) { + list_for_each_entry(entry, &reclaim_list, list) { resp = (struct virtio_gpu_ctrl_hdr *)entry->resp_buf;
trace_virtio_gpu_cmd_response(vgdev->ctrlq.vq, resp); @@ -219,14 +219,18 @@ void virtio_gpu_dequeue_ctrl_func(struct work_struct *work) } if (entry->resp_cb) entry->resp_cb(vgdev, entry); - - list_del(&entry->list); - free_vbuf(vgdev, entry); } wake_up(&vgdev->ctrlq.ack_queue);
if (fence_id) virtio_gpu_fence_event_process(vgdev, fence_id); + + list_for_each_entry_safe(entry, tmp, &reclaim_list, list) { + if (entry->objs) + virtio_gpu_array_put_free(entry->objs); + list_del(&entry->list); + free_vbuf(vgdev, entry); + } }
void virtio_gpu_dequeue_cursor_func(struct work_struct *work) @@ -338,6 +342,10 @@ static int virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev,
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); + } rc = virtio_gpu_queue_ctrl_buffer_locked(vgdev, vbuf); spin_unlock(&vgdev->ctrlq.qlock); return rc; @@ -940,7 +948,9 @@ void virtio_gpu_cmd_transfer_from_host_3d(struct virtio_gpu_device *vgdev,
void virtio_gpu_cmd_submit(struct virtio_gpu_device *vgdev, void *data, uint32_t data_size, - uint32_t ctx_id, struct virtio_gpu_fence *fence) + uint32_t ctx_id, + struct virtio_gpu_object_array *objs, + struct virtio_gpu_fence *fence) { struct virtio_gpu_cmd_submit *cmd_p; struct virtio_gpu_vbuffer *vbuf; @@ -950,6 +960,7 @@ void virtio_gpu_cmd_submit(struct virtio_gpu_device *vgdev,
vbuf->data_buf = data; vbuf->data_size = data_size; + vbuf->objs = objs;
cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_SUBMIT_3D); cmd_p->hdr.ctx_id = cpu_to_le32(ctx_id);
Rework fencing workflow. Stop using ttm helpers, use the virtio_gpu_array_* helpers instead.
Due to using the gem reservation object it is initialized and ready for use before calling ttm_bo_init. So we can simply use the standard fencing workflow and drop the tricky logic which checks whenever the command is in flight still.
v6: rewrite most of the patch.
Signed-off-by: Gerd Hoffmann kraxel@redhat.com --- drivers/gpu/drm/virtio/virtgpu_drv.h | 2 + drivers/gpu/drm/virtio/virtgpu_object.c | 74 +++++++++++-------------- drivers/gpu/drm/virtio/virtgpu_vq.c | 4 ++ 3 files changed, 37 insertions(+), 43 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index 6e02f6f7cb5a..e5d85c104bd1 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -274,6 +274,7 @@ void virtio_gpu_free_vbufs(struct virtio_gpu_device *vgdev); void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev, struct virtio_gpu_object *bo, struct virtio_gpu_object_params *params, + struct virtio_gpu_object_array *objs, struct virtio_gpu_fence *fence); void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev, uint32_t resource_id); @@ -336,6 +337,7 @@ void virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev, struct virtio_gpu_object *bo, struct virtio_gpu_object_params *params, + struct virtio_gpu_object_array *objs, struct virtio_gpu_fence *fence); void virtio_gpu_ctrl_ack(struct virtqueue *vq); void virtio_gpu_cursor_ack(struct virtqueue *vq); diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c index 82bfbf983fd2..2902487f051a 100644 --- a/drivers/gpu/drm/virtio/virtgpu_object.c +++ b/drivers/gpu/drm/virtio/virtgpu_object.c @@ -97,6 +97,7 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev, struct virtio_gpu_object **bo_ptr, struct virtio_gpu_fence *fence) { + struct virtio_gpu_object_array *objs = NULL; struct virtio_gpu_object *bo; size_t acc_size; int ret; @@ -110,23 +111,34 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev, if (bo == NULL) return -ENOMEM; ret = virtio_gpu_resource_id_get(vgdev, &bo->hw_res_handle); - if (ret < 0) { - kfree(bo); - return ret; - } + if (ret < 0) + goto err_free_gem; + params->size = roundup(params->size, PAGE_SIZE); ret = drm_gem_object_init(vgdev->ddev, &bo->gem_base, params->size); - if (ret != 0) { - virtio_gpu_resource_id_put(vgdev, bo->hw_res_handle); - kfree(bo); - return ret; - } + if (ret != 0) + goto err_put_id; + bo->dumb = params->dumb;
+ if (fence) { + ret = -ENOMEM; + objs = virtio_gpu_array_alloc(1); + if (!objs) + goto err_put_id; + virtio_gpu_array_add_obj(objs, &bo->gem_base); + + ret = virtio_gpu_array_lock_resv(objs); + if (ret != 0) + goto err_put_objs; + } + if (params->virgl) { - virtio_gpu_cmd_resource_create_3d(vgdev, bo, params, fence); + virtio_gpu_cmd_resource_create_3d(vgdev, bo, params, + objs, fence); } else { - virtio_gpu_cmd_create_resource(vgdev, bo, params, fence); + virtio_gpu_cmd_create_resource(vgdev, bo, params, + objs, fence); }
virtio_gpu_init_ttm_placement(bo); @@ -139,40 +151,16 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev, if (ret != 0) return ret;
- if (fence) { - struct virtio_gpu_fence_driver *drv = &vgdev->fence_drv; - struct list_head validate_list; - struct ttm_validate_buffer mainbuf; - struct ww_acquire_ctx ticket; - unsigned long irq_flags; - bool signaled; - - INIT_LIST_HEAD(&validate_list); - memset(&mainbuf, 0, sizeof(struct ttm_validate_buffer)); - - /* use a gem reference since unref list undoes them */ - drm_gem_object_get(&bo->gem_base); - mainbuf.bo = &bo->tbo; - list_add(&mainbuf.head, &validate_list); - - ret = virtio_gpu_object_list_validate(&ticket, &validate_list); - if (ret == 0) { - spin_lock_irqsave(&drv->lock, irq_flags); - signaled = virtio_fence_signaled(&fence->f); - if (!signaled) - /* virtio create command still in flight */ - ttm_eu_fence_buffer_objects(&ticket, &validate_list, - &fence->f); - spin_unlock_irqrestore(&drv->lock, irq_flags); - if (signaled) - /* virtio create command finished */ - ttm_eu_backoff_reservation(&ticket, &validate_list); - } - virtio_gpu_unref_list(&validate_list); - } - *bo_ptr = bo; return 0; + +err_put_objs: + virtio_gpu_array_put_free(objs); +err_put_id: + virtio_gpu_resource_id_put(vgdev, bo->hw_res_handle); +err_free_gem: + kfree(bo); + return ret; }
void virtio_gpu_object_kunmap(struct virtio_gpu_object *bo) diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c index 24245c37d69f..079907e8a596 100644 --- a/drivers/gpu/drm/virtio/virtgpu_vq.c +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c @@ -396,6 +396,7 @@ static int virtio_gpu_queue_cursor(struct virtio_gpu_device *vgdev, void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev, struct virtio_gpu_object *bo, struct virtio_gpu_object_params *params, + struct virtio_gpu_object_array *objs, struct virtio_gpu_fence *fence) { struct virtio_gpu_resource_create_2d *cmd_p; @@ -403,6 +404,7 @@ void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev,
cmd_p = virtio_gpu_alloc_cmd(vgdev, &vbuf, sizeof(*cmd_p)); memset(cmd_p, 0, sizeof(*cmd_p)); + vbuf->objs = objs;
cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_RESOURCE_CREATE_2D); cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle); @@ -869,6 +871,7 @@ void virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev, struct virtio_gpu_object *bo, struct virtio_gpu_object_params *params, + struct virtio_gpu_object_array *objs, struct virtio_gpu_fence *fence) { struct virtio_gpu_resource_create_3d *cmd_p; @@ -876,6 +879,7 @@ virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev,
cmd_p = virtio_gpu_alloc_cmd(vgdev, &vbuf, sizeof(*cmd_p)); memset(cmd_p, 0, sizeof(*cmd_p)); + vbuf->objs = objs;
cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_RESOURCE_CREATE_3D); cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle);
Switch to the virtio_gpu_array_* helper workflow.
Signed-off-by: Gerd Hoffmann kraxel@redhat.com --- drivers/gpu/drm/virtio/virtgpu_drv.h | 3 +- drivers/gpu/drm/virtio/virtgpu_ioctl.c | 40 ++++++++++---------------- drivers/gpu/drm/virtio/virtgpu_vq.c | 8 ++++-- 3 files changed, 23 insertions(+), 28 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index e5d85c104bd1..06be9201c24d 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -323,9 +323,10 @@ void virtio_gpu_cmd_submit(struct virtio_gpu_device *vgdev, struct virtio_gpu_object_array *objs, struct virtio_gpu_fence *fence); void virtio_gpu_cmd_transfer_from_host_3d(struct virtio_gpu_device *vgdev, - uint32_t resource_id, uint32_t ctx_id, + uint32_t ctx_id, uint64_t offset, uint32_t level, struct virtio_gpu_box *box, + struct virtio_gpu_object_array *objs, struct virtio_gpu_fence *fence); void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev, struct virtio_gpu_object *bo, diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c index a3e357f75099..efca7f831834 100644 --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c @@ -340,9 +340,7 @@ static int virtio_gpu_transfer_from_host_ioctl(struct drm_device *dev, struct virtio_gpu_device *vgdev = dev->dev_private; struct virtio_gpu_fpriv *vfpriv = file->driver_priv; struct drm_virtgpu_3d_transfer_from_host *args = data; - struct ttm_operation_ctx ctx = { true, false }; - struct drm_gem_object *gobj = NULL; - struct virtio_gpu_object *qobj = NULL; + struct virtio_gpu_object_array *objs; struct virtio_gpu_fence *fence; int ret; u32 offset = args->offset; @@ -351,39 +349,31 @@ static int virtio_gpu_transfer_from_host_ioctl(struct drm_device *dev, if (vgdev->has_virgl_3d == false) return -ENOSYS;
- gobj = drm_gem_object_lookup(file, args->bo_handle); - if (gobj == NULL) + objs = virtio_gpu_array_from_handles(file, &args->bo_handle, 1); + if (objs == NULL) return -ENOENT;
- qobj = gem_to_virtio_gpu_obj(gobj); - - ret = virtio_gpu_object_reserve(qobj); - if (ret) - goto out; - - ret = ttm_bo_validate(&qobj->tbo, &qobj->placement, &ctx); - if (unlikely(ret)) - goto out_unres; + ret = virtio_gpu_array_lock_resv(objs); + if (ret != 0) + goto err_put_free;
convert_to_hw_box(&box, &args->box);
fence = virtio_gpu_fence_alloc(vgdev); if (!fence) { ret = -ENOMEM; - goto out_unres; + goto err_unlock; } virtio_gpu_cmd_transfer_from_host_3d - (vgdev, qobj->hw_res_handle, - vfpriv->ctx_id, offset, args->level, - &box, fence); - reservation_object_add_excl_fence(qobj->tbo.resv, - &fence->f); - + (vgdev, vfpriv->ctx_id, offset, args->level, + &box, objs, fence); dma_fence_put(&fence->f); -out_unres: - virtio_gpu_object_unreserve(qobj); -out: - drm_gem_object_put_unlocked(gobj); + return 0; + +err_unlock: + virtio_gpu_array_unlock_resv(objs); +err_put_free: + virtio_gpu_array_put_free(objs); return ret; }
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c index 079907e8a596..59d32787944d 100644 --- a/drivers/gpu/drm/virtio/virtgpu_vq.c +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c @@ -929,20 +929,24 @@ void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev, }
void virtio_gpu_cmd_transfer_from_host_3d(struct virtio_gpu_device *vgdev, - uint32_t resource_id, uint32_t ctx_id, + uint32_t ctx_id, uint64_t offset, uint32_t level, struct virtio_gpu_box *box, + struct virtio_gpu_object_array *objs, struct virtio_gpu_fence *fence) { + struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(objs->objs[0]); struct virtio_gpu_transfer_host_3d *cmd_p; struct virtio_gpu_vbuffer *vbuf;
cmd_p = virtio_gpu_alloc_cmd(vgdev, &vbuf, sizeof(*cmd_p)); memset(cmd_p, 0, sizeof(*cmd_p));
+ vbuf->objs = objs; + cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_TRANSFER_FROM_HOST_3D); cmd_p->hdr.ctx_id = cpu_to_le32(ctx_id); - cmd_p->resource_id = cpu_to_le32(resource_id); + cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle); cmd_p->box = *box; cmd_p->offset = cpu_to_le64(offset); cmd_p->level = cpu_to_le32(level);
Switch to the virtio_gpu_array_* helper workflow.
Signed-off-by: Gerd Hoffmann kraxel@redhat.com --- drivers/gpu/drm/virtio/virtgpu_drv.h | 4 +-- drivers/gpu/drm/virtio/virtgpu_ioctl.c | 50 +++++++++++--------------- drivers/gpu/drm/virtio/virtgpu_plane.c | 21 ++++++++--- drivers/gpu/drm/virtio/virtgpu_vq.c | 9 +++-- 4 files changed, 47 insertions(+), 37 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index 06be9201c24d..f919180e69ea 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -279,10 +279,10 @@ void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev, void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev, uint32_t resource_id); void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev, - struct virtio_gpu_object *bo, uint64_t offset, __le32 width, __le32 height, __le32 x, __le32 y, + struct virtio_gpu_object_array *objs, struct virtio_gpu_fence *fence); void virtio_gpu_cmd_resource_flush(struct virtio_gpu_device *vgdev, uint32_t resource_id, @@ -329,10 +329,10 @@ void virtio_gpu_cmd_transfer_from_host_3d(struct virtio_gpu_device *vgdev, struct virtio_gpu_object_array *objs, struct virtio_gpu_fence *fence); void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev, - struct virtio_gpu_object *bo, uint32_t ctx_id, uint64_t offset, uint32_t level, struct virtio_gpu_box *box, + struct virtio_gpu_object_array *objs, struct virtio_gpu_fence *fence); void virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev, diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c index efca7f831834..c85019e29e96 100644 --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c @@ -383,52 +383,44 @@ static int virtio_gpu_transfer_to_host_ioctl(struct drm_device *dev, void *data, struct virtio_gpu_device *vgdev = dev->dev_private; struct virtio_gpu_fpriv *vfpriv = file->driver_priv; struct drm_virtgpu_3d_transfer_to_host *args = data; - struct ttm_operation_ctx ctx = { true, false }; - struct drm_gem_object *gobj = NULL; - struct virtio_gpu_object *qobj = NULL; + struct virtio_gpu_object_array *objs; struct virtio_gpu_fence *fence; struct virtio_gpu_box box; int ret; u32 offset = args->offset;
- gobj = drm_gem_object_lookup(file, args->bo_handle); - if (gobj == NULL) + objs = virtio_gpu_array_from_handles(file, &args->bo_handle, 1); + if (objs == NULL) return -ENOENT;
- qobj = gem_to_virtio_gpu_obj(gobj); - - ret = virtio_gpu_object_reserve(qobj); - if (ret) - goto out; - - ret = ttm_bo_validate(&qobj->tbo, &qobj->placement, &ctx); - if (unlikely(ret)) - goto out_unres; - convert_to_hw_box(&box, &args->box); if (!vgdev->has_virgl_3d) { virtio_gpu_cmd_transfer_to_host_2d - (vgdev, qobj, offset, - box.w, box.h, box.x, box.y, NULL); + (vgdev, offset, + box.w, box.h, box.x, box.y, + objs, NULL); } else { + ret = virtio_gpu_array_lock_resv(objs); + if (ret != 0) + goto err_put_free; + + ret = -ENOMEM; fence = virtio_gpu_fence_alloc(vgdev); - if (!fence) { - ret = -ENOMEM; - goto out_unres; - } + if (!fence) + goto err_unlock; + virtio_gpu_cmd_transfer_to_host_3d - (vgdev, qobj, + (vgdev, vfpriv ? vfpriv->ctx_id : 0, offset, - args->level, &box, fence); - reservation_object_add_excl_fence(qobj->tbo.resv, - &fence->f); + args->level, &box, objs, fence); dma_fence_put(&fence->f); } + return 0;
-out_unres: - virtio_gpu_object_unreserve(qobj); -out: - drm_gem_object_put_unlocked(gobj); +err_unlock: + virtio_gpu_array_unlock_resv(objs); +err_put_free: + virtio_gpu_array_put_free(objs); return ret; }
diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c index 11539b66c6f2..80c51b098a51 100644 --- a/drivers/gpu/drm/virtio/virtgpu_plane.c +++ b/drivers/gpu/drm/virtio/virtgpu_plane.c @@ -109,12 +109,19 @@ static void virtio_gpu_primary_plane_update(struct drm_plane *plane, bo = gem_to_virtio_gpu_obj(vgfb->base.obj[0]); handle = bo->hw_res_handle; if (bo->dumb) { + struct virtio_gpu_object_array *objs; + + objs = virtio_gpu_array_alloc(1); + if (!objs) + return; + virtio_gpu_array_add_obj(objs, vgfb->base.obj[0]); virtio_gpu_cmd_transfer_to_host_2d - (vgdev, bo, 0, + (vgdev, 0, cpu_to_le32(plane->state->src_w >> 16), cpu_to_le32(plane->state->src_h >> 16), cpu_to_le32(plane->state->src_x >> 16), - cpu_to_le32(plane->state->src_y >> 16), NULL); + cpu_to_le32(plane->state->src_y >> 16), + objs, NULL); } } else { handle = 0; @@ -204,11 +211,17 @@ static void virtio_gpu_cursor_plane_update(struct drm_plane *plane,
if (bo && bo->dumb && (plane->state->fb != old_state->fb)) { /* new cursor -- update & wait */ + struct virtio_gpu_object_array *objs; + + objs = virtio_gpu_array_alloc(1); + if (!objs) + return; + virtio_gpu_array_add_obj(objs, vgfb->base.obj[0]); virtio_gpu_cmd_transfer_to_host_2d - (vgdev, bo, 0, + (vgdev, 0, cpu_to_le32(plane->state->crtc_w), cpu_to_le32(plane->state->crtc_h), - 0, 0, vgfb->fence); + 0, 0, objs, vgfb->fence); dma_fence_wait(&vgfb->fence->f, true); dma_fence_put(&vgfb->fence->f); vgfb->fence = NULL; diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c index 59d32787944d..e8f5670aadf2 100644 --- a/drivers/gpu/drm/virtio/virtgpu_vq.c +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c @@ -491,12 +491,13 @@ void virtio_gpu_cmd_resource_flush(struct virtio_gpu_device *vgdev, }
void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev, - struct virtio_gpu_object *bo, uint64_t offset, __le32 width, __le32 height, __le32 x, __le32 y, + struct virtio_gpu_object_array *objs, struct virtio_gpu_fence *fence) { + struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(objs->objs[0]); struct virtio_gpu_transfer_to_host_2d *cmd_p; struct virtio_gpu_vbuffer *vbuf; bool use_dma_api = !virtio_has_iommu_quirk(vgdev->vdev); @@ -508,6 +509,7 @@ void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev,
cmd_p = virtio_gpu_alloc_cmd(vgdev, &vbuf, sizeof(*cmd_p)); memset(cmd_p, 0, sizeof(*cmd_p)); + vbuf->objs = objs;
cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_TRANSFER_TO_HOST_2D); cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle); @@ -900,12 +902,13 @@ virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev, }
void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev, - struct virtio_gpu_object *bo, uint32_t ctx_id, uint64_t offset, uint32_t level, struct virtio_gpu_box *box, + struct virtio_gpu_object_array *objs, struct virtio_gpu_fence *fence) { + struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(objs->objs[0]); struct virtio_gpu_transfer_host_3d *cmd_p; struct virtio_gpu_vbuffer *vbuf; bool use_dma_api = !virtio_has_iommu_quirk(vgdev->vdev); @@ -918,6 +921,8 @@ void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev, cmd_p = virtio_gpu_alloc_cmd(vgdev, &vbuf, sizeof(*cmd_p)); memset(cmd_p, 0, sizeof(*cmd_p));
+ vbuf->objs = objs; + cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_TRANSFER_TO_HOST_3D); cmd_p->hdr.ctx_id = cpu_to_le32(ctx_id); cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle);
Switch to the virtio_gpu_array_* helper workflow.
Signed-off-by: Gerd Hoffmann kraxel@redhat.com --- drivers/gpu/drm/virtio/virtgpu_drv.h | 4 ++-- drivers/gpu/drm/virtio/virtgpu_gem.c | 24 +++++++++++------------- drivers/gpu/drm/virtio/virtgpu_vq.c | 12 ++++++++---- 3 files changed, 21 insertions(+), 19 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index f919180e69ea..2fbb3d766560 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -313,10 +313,10 @@ void virtio_gpu_cmd_context_destroy(struct virtio_gpu_device *vgdev, uint32_t id); void virtio_gpu_cmd_context_attach_resource(struct virtio_gpu_device *vgdev, uint32_t ctx_id, - uint32_t resource_id); + struct virtio_gpu_object_array *objs); void virtio_gpu_cmd_context_detach_resource(struct virtio_gpu_device *vgdev, uint32_t ctx_id, - uint32_t resource_id); + struct virtio_gpu_object_array *objs); void virtio_gpu_cmd_submit(struct virtio_gpu_device *vgdev, void *data, uint32_t data_size, uint32_t ctx_id, diff --git a/drivers/gpu/drm/virtio/virtgpu_gem.c b/drivers/gpu/drm/virtio/virtgpu_gem.c index f3c9419858b7..80736add8ffa 100644 --- a/drivers/gpu/drm/virtio/virtgpu_gem.c +++ b/drivers/gpu/drm/virtio/virtgpu_gem.c @@ -136,19 +136,18 @@ int virtio_gpu_gem_object_open(struct drm_gem_object *obj, { 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;
- r = virtio_gpu_object_reserve(qobj); - if (r) - return r; + 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); return 0; }
@@ -157,19 +156,18 @@ void virtio_gpu_gem_object_close(struct drm_gem_object *obj, { 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); - 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); }
struct virtio_gpu_object_array *virtio_gpu_array_alloc(u32 nents) diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c index e8f5670aadf2..7a316e92c783 100644 --- a/drivers/gpu/drm/virtio/virtgpu_vq.c +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c @@ -838,34 +838,38 @@ void virtio_gpu_cmd_context_destroy(struct virtio_gpu_device *vgdev,
void virtio_gpu_cmd_context_attach_resource(struct virtio_gpu_device *vgdev, uint32_t ctx_id, - uint32_t resource_id) + struct virtio_gpu_object_array *objs) { + struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(objs->objs[0]); struct virtio_gpu_ctx_resource *cmd_p; struct virtio_gpu_vbuffer *vbuf;
cmd_p = virtio_gpu_alloc_cmd(vgdev, &vbuf, sizeof(*cmd_p)); memset(cmd_p, 0, sizeof(*cmd_p)); + vbuf->objs = objs;
cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_CTX_ATTACH_RESOURCE); cmd_p->hdr.ctx_id = cpu_to_le32(ctx_id); - cmd_p->resource_id = cpu_to_le32(resource_id); + cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle); virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
}
void virtio_gpu_cmd_context_detach_resource(struct virtio_gpu_device *vgdev, uint32_t ctx_id, - uint32_t resource_id) + struct virtio_gpu_object_array *objs) { + struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(objs->objs[0]); struct virtio_gpu_ctx_resource *cmd_p; struct virtio_gpu_vbuffer *vbuf;
cmd_p = virtio_gpu_alloc_cmd(vgdev, &vbuf, sizeof(*cmd_p)); memset(cmd_p, 0, sizeof(*cmd_p)); + vbuf->objs = objs;
cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_CTX_DETACH_RESOURCE); cmd_p->hdr.ctx_id = cpu_to_le32(ctx_id); - cmd_p->resource_id = cpu_to_le32(resource_id); + cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle); virtio_gpu_queue_ctrl_buffer(vgdev, vbuf); }
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Signed-off-by: Gerd Hoffmann kraxel@redhat.com Acked-by: Daniel Vetter daniel.vetter@ffwll.ch --- drivers/gpu/drm/virtio/virtgpu_drv.h | 3 -- drivers/gpu/drm/virtio/virtgpu_ioctl.c | 39 -------------------------- 2 files changed, 42 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index 2fbb3d766560..e5f1b20b6f14 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -223,9 +223,6 @@ struct virtio_gpu_fpriv { /* virtio_ioctl.c */ #define DRM_VIRTIO_NUM_IOCTLS 10 extern struct drm_ioctl_desc virtio_gpu_ioctls[DRM_VIRTIO_NUM_IOCTLS]; -int virtio_gpu_object_list_validate(struct ww_acquire_ctx *ticket, - struct list_head *head); -void virtio_gpu_unref_list(struct list_head *head);
/* virtio_kms.c */ int virtio_gpu_init(struct drm_device *dev); diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c index c85019e29e96..123ac28f498a 100644 --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c @@ -56,45 +56,6 @@ static int virtio_gpu_map_ioctl(struct drm_device *dev, void *data, &virtio_gpu_map->offset); }
-int virtio_gpu_object_list_validate(struct ww_acquire_ctx *ticket, - struct list_head *head) -{ - struct ttm_operation_ctx ctx = { false, false }; - struct ttm_validate_buffer *buf; - struct ttm_buffer_object *bo; - struct virtio_gpu_object *qobj; - int ret; - - ret = ttm_eu_reserve_buffers(ticket, head, true, NULL, true); - if (ret != 0) - return ret; - - list_for_each_entry(buf, head, head) { - bo = buf->bo; - qobj = container_of(bo, struct virtio_gpu_object, tbo); - ret = ttm_bo_validate(bo, &qobj->placement, &ctx); - if (ret) { - ttm_eu_backoff_reservation(ticket, head); - return ret; - } - } - return 0; -} - -void virtio_gpu_unref_list(struct list_head *head) -{ - struct ttm_validate_buffer *buf; - struct ttm_buffer_object *bo; - struct virtio_gpu_object *qobj; - - list_for_each_entry(buf, head, head) { - bo = buf->bo; - qobj = container_of(bo, struct virtio_gpu_object, tbo); - - drm_gem_object_put_unlocked(&qobj->gem_base); - } -} - /* * Usage of execbuffer: * Relocations need to take into account the full VIRTIO_GPUDrawable size.
virtio-gpu basically needs a sg_table for the bo, to tell the host where the backing pages for the object are. So the gem shmem helpers are a perfect fit. Some drm_gem_object_funcs need thin wrappers to update the host state, but otherwise the helpers handle everything just fine.
Once the fencing was sorted the switch was surprisingly easy and for the most part just removing the ttm code.
v4: fix drm_gem_object_funcs name.
Signed-off-by: Gerd Hoffmann kraxel@redhat.com Acked-by: Daniel Vetter daniel.vetter@ffwll.ch --- drivers/gpu/drm/virtio/virtgpu_drv.h | 52 +--- drivers/gpu/drm/virtio/virtgpu_drv.c | 20 +- drivers/gpu/drm/virtio/virtgpu_gem.c | 16 +- drivers/gpu/drm/virtio/virtgpu_ioctl.c | 5 +- drivers/gpu/drm/virtio/virtgpu_kms.c | 9 - drivers/gpu/drm/virtio/virtgpu_object.c | 146 ++++-------- drivers/gpu/drm/virtio/virtgpu_prime.c | 37 --- drivers/gpu/drm/virtio/virtgpu_ttm.c | 305 ------------------------ drivers/gpu/drm/virtio/virtgpu_vq.c | 24 +- drivers/gpu/drm/virtio/Kconfig | 2 +- drivers/gpu/drm/virtio/Makefile | 2 +- 11 files changed, 80 insertions(+), 538 deletions(-) delete mode 100644 drivers/gpu/drm/virtio/virtgpu_ttm.c
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index e5f1b20b6f14..1d6e4ffee7d1 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -35,12 +35,9 @@ #include <drm/drm_encoder.h> #include <drm/drm_fb_helper.h> #include <drm/drm_gem.h> +#include <drm/drm_gem_shmem_helper.h> #include <drm/drm_ioctl.h> #include <drm/drm_probe_helper.h> -#include <drm/ttm/ttm_bo_api.h> -#include <drm/ttm/ttm_bo_driver.h> -#include <drm/ttm/ttm_module.h> -#include <drm/ttm/ttm_placement.h>
#define DRIVER_NAME "virtio_gpu" #define DRIVER_DESC "virtio GPU" @@ -68,21 +65,16 @@ struct virtio_gpu_object_params { };
struct virtio_gpu_object { - struct drm_gem_object gem_base; + struct drm_gem_shmem_object base; uint32_t hw_res_handle;
struct sg_table *pages; uint32_t mapped; - void *vmap; bool dumb; - struct ttm_place placement_code; - struct ttm_placement placement; - struct ttm_buffer_object tbo; - struct ttm_bo_kmap_obj kmap; bool created; }; #define gem_to_virtio_gpu_obj(gobj) \ - container_of((gobj), struct virtio_gpu_object, gem_base) + container_of((gobj), struct virtio_gpu_object, base.base)
struct virtio_gpu_object_array { struct ww_acquire_ctx ticket; @@ -153,10 +145,6 @@ struct virtio_gpu_framebuffer { #define to_virtio_gpu_framebuffer(x) \ container_of(x, struct virtio_gpu_framebuffer, base)
-struct virtio_gpu_mman { - struct ttm_bo_device bdev; -}; - struct virtio_gpu_queue { struct virtqueue *vq; spinlock_t qlock; @@ -185,8 +173,6 @@ struct virtio_gpu_device {
struct virtio_device *vdev;
- struct virtio_gpu_mman mman; - struct virtio_gpu_output outputs[VIRTIO_GPU_MAX_SCANOUTS]; uint32_t num_scanouts;
@@ -358,11 +344,6 @@ struct drm_plane *virtio_gpu_plane_init(struct virtio_gpu_device *vgdev, enum drm_plane_type type, int index);
-/* virtio_gpu_ttm.c */ -int virtio_gpu_ttm_init(struct virtio_gpu_device *vgdev); -void virtio_gpu_ttm_fini(struct virtio_gpu_device *vgdev); -int virtio_gpu_mmap(struct file *filp, struct vm_area_struct *vma); - /* virtio_gpu_fence.c */ bool virtio_fence_signaled(struct dma_fence *f); struct virtio_gpu_fence *virtio_gpu_fence_alloc( @@ -374,58 +355,47 @@ void virtio_gpu_fence_event_process(struct virtio_gpu_device *vdev, u64 last_seq);
/* virtio_gpu_object */ +struct drm_gem_object *virtio_gpu_create_object(struct drm_device *dev, + size_t size); int virtio_gpu_object_create(struct virtio_gpu_device *vgdev, struct virtio_gpu_object_params *params, struct virtio_gpu_object **bo_ptr, struct virtio_gpu_fence *fence); -void virtio_gpu_object_kunmap(struct virtio_gpu_object *bo); -int virtio_gpu_object_kmap(struct virtio_gpu_object *bo); -int virtio_gpu_object_get_sg_table(struct virtio_gpu_device *qdev, - struct virtio_gpu_object *bo); -void virtio_gpu_object_free_sg_table(struct virtio_gpu_object *bo);
/* virtgpu_prime.c */ -struct sg_table *virtgpu_gem_prime_get_sg_table(struct drm_gem_object *obj); struct drm_gem_object *virtgpu_gem_prime_import_sg_table( struct drm_device *dev, struct dma_buf_attachment *attach, struct sg_table *sgt); -void *virtgpu_gem_prime_vmap(struct drm_gem_object *obj); -void virtgpu_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr); -int virtgpu_gem_prime_mmap(struct drm_gem_object *obj, - struct vm_area_struct *vma);
static inline struct virtio_gpu_object* virtio_gpu_object_ref(struct virtio_gpu_object *bo) { - ttm_bo_get(&bo->tbo); + drm_gem_object_get(&bo->base.base); return bo; }
static inline void virtio_gpu_object_unref(struct virtio_gpu_object **bo) { - struct ttm_buffer_object *tbo; - if ((*bo) == NULL) return; - tbo = &((*bo)->tbo); - ttm_bo_put(tbo); + drm_gem_object_put(&(*bo)->base.base); *bo = NULL; }
static inline u64 virtio_gpu_object_mmap_offset(struct virtio_gpu_object *bo) { - return drm_vma_node_offset_addr(&bo->tbo.vma_node); + return drm_vma_node_offset_addr(&bo->base.base.vma_node); }
static inline int virtio_gpu_object_reserve(struct virtio_gpu_object *bo) { int r;
- r = reservation_object_lock_interruptible(bo->gem_base.resv, NULL); + r = reservation_object_lock_interruptible(bo->base.base.resv, NULL); if (unlikely(r != 0)) { if (r != -EINTR) { struct virtio_gpu_device *qdev = - bo->gem_base.dev->dev_private; + bo->base.base.dev->dev_private; dev_err(qdev->dev, "%p reserve failed\n", bo); } return r; @@ -435,7 +405,7 @@ static inline int virtio_gpu_object_reserve(struct virtio_gpu_object *bo)
static inline void virtio_gpu_object_unreserve(struct virtio_gpu_object *bo) { - reservation_object_unlock(bo->gem_base.resv); + reservation_object_unlock(bo->base.base.resv); }
/* virgl debufs */ diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.c b/drivers/gpu/drm/virtio/virtgpu_drv.c index 0fc32fa0b3c0..2dc41fc64002 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.c +++ b/drivers/gpu/drm/virtio/virtgpu_drv.c @@ -185,17 +185,7 @@ MODULE_AUTHOR("Dave Airlie airlied@redhat.com"); MODULE_AUTHOR("Gerd Hoffmann kraxel@redhat.com"); MODULE_AUTHOR("Alon Levy");
-static const struct file_operations virtio_gpu_driver_fops = { - .owner = THIS_MODULE, - .open = drm_open, - .mmap = virtio_gpu_mmap, - .poll = drm_poll, - .read = drm_read, - .unlocked_ioctl = drm_ioctl, - .release = drm_release, - .compat_ioctl = drm_compat_ioctl, - .llseek = noop_llseek, -}; +DEFINE_DRM_GEM_SHMEM_FOPS(virtio_gpu_driver_fops);
static struct drm_driver driver = { .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_RENDER | DRIVER_ATOMIC, @@ -210,15 +200,9 @@ static struct drm_driver driver = { #endif .prime_handle_to_fd = drm_gem_prime_handle_to_fd, .prime_fd_to_handle = drm_gem_prime_fd_to_handle, - .gem_prime_get_sg_table = virtgpu_gem_prime_get_sg_table, .gem_prime_import_sg_table = virtgpu_gem_prime_import_sg_table, - .gem_prime_vmap = virtgpu_gem_prime_vmap, - .gem_prime_vunmap = virtgpu_gem_prime_vunmap, - .gem_prime_mmap = virtgpu_gem_prime_mmap,
- .gem_free_object_unlocked = virtio_gpu_gem_free_object, - .gem_open_object = virtio_gpu_gem_object_open, - .gem_close_object = virtio_gpu_gem_object_close, + .gem_create_object = virtio_gpu_create_object, .fops = &virtio_gpu_driver_fops,
.ioctls = virtio_gpu_ioctls, diff --git a/drivers/gpu/drm/virtio/virtgpu_gem.c b/drivers/gpu/drm/virtio/virtgpu_gem.c index 80736add8ffa..0cba78bcf39c 100644 --- a/drivers/gpu/drm/virtio/virtgpu_gem.c +++ b/drivers/gpu/drm/virtio/virtgpu_gem.c @@ -28,14 +28,6 @@
#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, @@ -66,16 +58,16 @@ int virtio_gpu_gem_create(struct drm_file *file, if (IS_ERR(obj)) return PTR_ERR(obj);
- 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_unlocked(&obj->base.base);
*handle_p = handle; return 0; diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c index 123ac28f498a..865b3b8400ed 100644 --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c @@ -29,7 +29,6 @@ #include <linux/sync_file.h>
#include <drm/drm_file.h> -#include <drm/ttm/ttm_execbuf_util.h> #include <drm/virtgpu_drm.h>
#include "virtgpu_drv.h" @@ -261,7 +260,7 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data, dma_fence_put(&fence->f); if (IS_ERR(qobj)) return PTR_ERR(qobj); - obj = &qobj->gem_base; + obj = &qobj->base.base;
ret = drm_gem_handle_create(file_priv, obj, &handle); if (ret) { @@ -288,7 +287,7 @@ static int virtio_gpu_resource_info_ioctl(struct drm_device *dev, void *data,
qobj = gem_to_virtio_gpu_obj(gobj);
- ri->size = qobj->gem_base.size; + ri->size = qobj->base.base.size; ri->res_handle = qobj->hw_res_handle; drm_gem_object_put_unlocked(gobj); return 0; diff --git a/drivers/gpu/drm/virtio/virtgpu_kms.c b/drivers/gpu/drm/virtio/virtgpu_kms.c index c190702fab72..231c4e27b3b3 100644 --- a/drivers/gpu/drm/virtio/virtgpu_kms.c +++ b/drivers/gpu/drm/virtio/virtgpu_kms.c @@ -173,12 +173,6 @@ int virtio_gpu_init(struct drm_device *dev) goto err_vbufs; }
- ret = virtio_gpu_ttm_init(vgdev); - if (ret) { - DRM_ERROR("failed to init ttm %d\n", ret); - goto err_ttm; - } - /* get display info */ virtio_cread(vgdev->vdev, struct virtio_gpu_config, num_scanouts, &num_scanouts); @@ -210,8 +204,6 @@ int virtio_gpu_init(struct drm_device *dev) return 0;
err_scanouts: - virtio_gpu_ttm_fini(vgdev); -err_ttm: virtio_gpu_free_vbufs(vgdev); err_vbufs: vgdev->vdev->config->del_vqs(vgdev->vdev); @@ -242,7 +234,6 @@ void virtio_gpu_deinit(struct drm_device *dev) vgdev->vdev->config->del_vqs(vgdev->vdev);
virtio_gpu_modeset_fini(vgdev); - virtio_gpu_ttm_fini(vgdev); virtio_gpu_free_vbufs(vgdev); virtio_gpu_cleanup_cap_cache(vgdev); kfree(vgdev->capsets); diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c index 2902487f051a..fb9d05a68f4c 100644 --- a/drivers/gpu/drm/virtio/virtgpu_object.c +++ b/drivers/gpu/drm/virtio/virtgpu_object.c @@ -23,8 +23,6 @@ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
-#include <drm/ttm/ttm_execbuf_util.h> - #include "virtgpu_drv.h"
static int virtio_gpu_resource_id_get(struct virtio_gpu_device *vgdev, @@ -57,39 +55,45 @@ static void virtio_gpu_resource_id_put(struct virtio_gpu_device *vgdev, uint32_t #endif }
-static void virtio_gpu_ttm_bo_destroy(struct ttm_buffer_object *tbo) +static void virtio_gpu_free_object(struct drm_gem_object *obj) { - struct virtio_gpu_object *bo; - struct virtio_gpu_device *vgdev; - - bo = container_of(tbo, struct virtio_gpu_object, tbo); - vgdev = (struct virtio_gpu_device *)bo->gem_base.dev->dev_private; + struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(obj); + struct virtio_gpu_device *vgdev = bo->base.base.dev->dev_private;
+ if (bo->pages) + virtio_gpu_object_detach(vgdev, bo); if (bo->created) virtio_gpu_cmd_unref_resource(vgdev, bo->hw_res_handle); - if (bo->pages) - virtio_gpu_object_free_sg_table(bo); - if (bo->vmap) - virtio_gpu_object_kunmap(bo); - drm_gem_object_release(&bo->gem_base); virtio_gpu_resource_id_put(vgdev, bo->hw_res_handle); - kfree(bo); + + drm_gem_shmem_free_object(obj); }
-static void virtio_gpu_init_ttm_placement(struct virtio_gpu_object *vgbo) +static const struct drm_gem_object_funcs virtio_gpu_gem_funcs = { + .free = virtio_gpu_free_object, + .open = virtio_gpu_gem_object_open, + .close = virtio_gpu_gem_object_close, + + .print_info = drm_gem_shmem_print_info, + .pin = drm_gem_shmem_pin, + .unpin = drm_gem_shmem_unpin, + .get_sg_table = drm_gem_shmem_get_sg_table, + .vmap = drm_gem_shmem_vmap, + .vunmap = drm_gem_shmem_vunmap, + .vm_ops = &drm_gem_shmem_vm_ops, +}; + +struct drm_gem_object *virtio_gpu_create_object(struct drm_device *dev, + size_t size) { - u32 c = 1; + struct virtio_gpu_object *bo;
- vgbo->placement.placement = &vgbo->placement_code; - vgbo->placement.busy_placement = &vgbo->placement_code; - vgbo->placement_code.fpfn = 0; - vgbo->placement_code.lpfn = 0; - vgbo->placement_code.flags = - TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT | - TTM_PL_FLAG_NO_EVICT; - vgbo->placement.num_placement = c; - vgbo->placement.num_busy_placement = c; + bo = kzalloc(sizeof(*bo), GFP_KERNEL); + if (!bo) + return NULL;
+ bo->base.base.funcs = &virtio_gpu_gem_funcs; + return &bo->base.base; }
int virtio_gpu_object_create(struct virtio_gpu_device *vgdev, @@ -98,27 +102,22 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev, struct virtio_gpu_fence *fence) { struct virtio_gpu_object_array *objs = NULL; + struct drm_gem_shmem_object *shmem_obj; struct virtio_gpu_object *bo; - size_t acc_size; int ret;
*bo_ptr = NULL;
- acc_size = ttm_bo_dma_acc_size(&vgdev->mman.bdev, params->size, - sizeof(struct virtio_gpu_object)); + params->size = roundup(params->size, PAGE_SIZE); + shmem_obj = drm_gem_shmem_create(vgdev->ddev, params->size); + if (IS_ERR(shmem_obj)) + return PTR_ERR(shmem_obj); + bo = gem_to_virtio_gpu_obj(&shmem_obj->base);
- bo = kzalloc(sizeof(struct virtio_gpu_object), GFP_KERNEL); - if (bo == NULL) - return -ENOMEM; ret = virtio_gpu_resource_id_get(vgdev, &bo->hw_res_handle); if (ret < 0) goto err_free_gem;
- params->size = roundup(params->size, PAGE_SIZE); - ret = drm_gem_object_init(vgdev->ddev, &bo->gem_base, params->size); - if (ret != 0) - goto err_put_id; - bo->dumb = params->dumb;
if (fence) { @@ -126,7 +125,7 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev, objs = virtio_gpu_array_alloc(1); if (!objs) goto err_put_id; - virtio_gpu_array_add_obj(objs, &bo->gem_base); + virtio_gpu_array_add_obj(objs, &bo->base.base);
ret = virtio_gpu_array_lock_resv(objs); if (ret != 0) @@ -141,15 +140,11 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev, objs, fence); }
- virtio_gpu_init_ttm_placement(bo); - ret = ttm_bo_init(&vgdev->mman.bdev, &bo->tbo, params->size, - ttm_bo_type_device, &bo->placement, 0, - true, acc_size, NULL, - bo->gem_base.resv, - &virtio_gpu_ttm_bo_destroy); - /* ttm_bo_init failure will call the destroy */ - if (ret != 0) + ret = virtio_gpu_object_attach(vgdev, bo, NULL); + if (ret != 0) { + virtio_gpu_free_object(&shmem_obj->base); return ret; + }
*bo_ptr = bo; return 0; @@ -159,65 +154,6 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev, err_put_id: virtio_gpu_resource_id_put(vgdev, bo->hw_res_handle); err_free_gem: - kfree(bo); + drm_gem_shmem_free_object(&shmem_obj->base); return ret; } - -void virtio_gpu_object_kunmap(struct virtio_gpu_object *bo) -{ - bo->vmap = NULL; - ttm_bo_kunmap(&bo->kmap); -} - -int virtio_gpu_object_kmap(struct virtio_gpu_object *bo) -{ - bool is_iomem; - int r; - - WARN_ON(bo->vmap); - - r = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.num_pages, &bo->kmap); - if (r) - return r; - bo->vmap = ttm_kmap_obj_virtual(&bo->kmap, &is_iomem); - return 0; -} - -int virtio_gpu_object_get_sg_table(struct virtio_gpu_device *qdev, - struct virtio_gpu_object *bo) -{ - int ret; - struct page **pages = bo->tbo.ttm->pages; - int nr_pages = bo->tbo.num_pages; - struct ttm_operation_ctx ctx = { - .interruptible = false, - .no_wait_gpu = false - }; - - /* wtf swapping */ - if (bo->pages) - return 0; - - if (bo->tbo.ttm->state == tt_unpopulated) - bo->tbo.ttm->bdev->driver->ttm_tt_populate(bo->tbo.ttm, &ctx); - bo->pages = kmalloc(sizeof(struct sg_table), GFP_KERNEL); - if (!bo->pages) - goto out; - - ret = sg_alloc_table_from_pages(bo->pages, pages, nr_pages, 0, - nr_pages << PAGE_SHIFT, GFP_KERNEL); - if (ret) - goto out; - return 0; -out: - kfree(bo->pages); - bo->pages = NULL; - return -ENOMEM; -} - -void virtio_gpu_object_free_sg_table(struct virtio_gpu_object *bo) -{ - sg_free_table(bo->pages); - kfree(bo->pages); - bo->pages = NULL; -} diff --git a/drivers/gpu/drm/virtio/virtgpu_prime.c b/drivers/gpu/drm/virtio/virtgpu_prime.c index 8b3b2caf3364..050d24c39a8f 100644 --- a/drivers/gpu/drm/virtio/virtgpu_prime.c +++ b/drivers/gpu/drm/virtio/virtgpu_prime.c @@ -30,46 +30,9 @@ * device that might share buffers with virtgpu */
-struct sg_table *virtgpu_gem_prime_get_sg_table(struct drm_gem_object *obj) -{ - struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(obj); - - if (!bo->tbo.ttm->pages || !bo->tbo.ttm->num_pages) - /* should not happen */ - return ERR_PTR(-EINVAL); - - return drm_prime_pages_to_sg(bo->tbo.ttm->pages, - bo->tbo.ttm->num_pages); -} - struct drm_gem_object *virtgpu_gem_prime_import_sg_table( struct drm_device *dev, struct dma_buf_attachment *attach, struct sg_table *table) { return ERR_PTR(-ENODEV); } - -void *virtgpu_gem_prime_vmap(struct drm_gem_object *obj) -{ - struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(obj); - int ret; - - ret = virtio_gpu_object_kmap(bo); - if (ret) - return NULL; - return bo->vmap; -} - -void virtgpu_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr) -{ - virtio_gpu_object_kunmap(gem_to_virtio_gpu_obj(obj)); -} - -int virtgpu_gem_prime_mmap(struct drm_gem_object *obj, - struct vm_area_struct *vma) -{ - struct virtio_gpu_object *bo = gem_to_virtio_gpu_obj(obj); - - bo->gem_base.vma_node.vm_node.start = bo->tbo.vma_node.vm_node.start; - return drm_gem_prime_mmap(obj, vma); -} diff --git a/drivers/gpu/drm/virtio/virtgpu_ttm.c b/drivers/gpu/drm/virtio/virtgpu_ttm.c deleted file mode 100644 index f87903641847..000000000000 --- a/drivers/gpu/drm/virtio/virtgpu_ttm.c +++ /dev/null @@ -1,305 +0,0 @@ -/* - * Copyright (C) 2015 Red Hat, Inc. - * All Rights Reserved. - * - * Authors: - * Dave Airlie - * Alon Levy - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - */ - -#include <linux/delay.h> - -#include <drm/drm.h> -#include <drm/drm_file.h> -#include <drm/ttm/ttm_bo_api.h> -#include <drm/ttm/ttm_bo_driver.h> -#include <drm/ttm/ttm_module.h> -#include <drm/ttm/ttm_page_alloc.h> -#include <drm/ttm/ttm_placement.h> -#include <drm/virtgpu_drm.h> - -#include "virtgpu_drv.h" - -static struct -virtio_gpu_device *virtio_gpu_get_vgdev(struct ttm_bo_device *bdev) -{ - struct virtio_gpu_mman *mman; - struct virtio_gpu_device *vgdev; - - mman = container_of(bdev, struct virtio_gpu_mman, bdev); - vgdev = container_of(mman, struct virtio_gpu_device, mman); - return vgdev; -} - -int virtio_gpu_mmap(struct file *filp, struct vm_area_struct *vma) -{ - struct drm_file *file_priv; - struct virtio_gpu_device *vgdev; - int r; - - file_priv = filp->private_data; - vgdev = file_priv->minor->dev->dev_private; - if (vgdev == NULL) { - DRM_ERROR( - "filp->private_data->minor->dev->dev_private == NULL\n"); - return -EINVAL; - } - r = ttm_bo_mmap(filp, vma, &vgdev->mman.bdev); - - return r; -} - -static int virtio_gpu_invalidate_caches(struct ttm_bo_device *bdev, - uint32_t flags) -{ - return 0; -} - -static int ttm_bo_man_get_node(struct ttm_mem_type_manager *man, - struct ttm_buffer_object *bo, - const struct ttm_place *place, - struct ttm_mem_reg *mem) -{ - mem->mm_node = (void *)1; - return 0; -} - -static void ttm_bo_man_put_node(struct ttm_mem_type_manager *man, - struct ttm_mem_reg *mem) -{ - mem->mm_node = (void *)NULL; -} - -static int ttm_bo_man_init(struct ttm_mem_type_manager *man, - unsigned long p_size) -{ - return 0; -} - -static int ttm_bo_man_takedown(struct ttm_mem_type_manager *man) -{ - return 0; -} - -static void ttm_bo_man_debug(struct ttm_mem_type_manager *man, - struct drm_printer *printer) -{ -} - -static const struct ttm_mem_type_manager_func virtio_gpu_bo_manager_func = { - .init = ttm_bo_man_init, - .takedown = ttm_bo_man_takedown, - .get_node = ttm_bo_man_get_node, - .put_node = ttm_bo_man_put_node, - .debug = ttm_bo_man_debug -}; - -static int virtio_gpu_init_mem_type(struct ttm_bo_device *bdev, uint32_t type, - struct ttm_mem_type_manager *man) -{ - switch (type) { - case TTM_PL_SYSTEM: - /* System memory */ - man->flags = TTM_MEMTYPE_FLAG_MAPPABLE; - man->available_caching = TTM_PL_MASK_CACHING; - man->default_caching = TTM_PL_FLAG_CACHED; - break; - case TTM_PL_TT: - man->func = &virtio_gpu_bo_manager_func; - man->flags = TTM_MEMTYPE_FLAG_MAPPABLE; - man->available_caching = TTM_PL_MASK_CACHING; - man->default_caching = TTM_PL_FLAG_CACHED; - break; - default: - DRM_ERROR("Unsupported memory type %u\n", (unsigned int)type); - return -EINVAL; - } - return 0; -} - -static void virtio_gpu_evict_flags(struct ttm_buffer_object *bo, - struct ttm_placement *placement) -{ - static const struct ttm_place placements = { - .fpfn = 0, - .lpfn = 0, - .flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM, - }; - - placement->placement = &placements; - placement->busy_placement = &placements; - placement->num_placement = 1; - placement->num_busy_placement = 1; -} - -static int virtio_gpu_verify_access(struct ttm_buffer_object *bo, - struct file *filp) -{ - return 0; -} - -static int virtio_gpu_ttm_io_mem_reserve(struct ttm_bo_device *bdev, - struct ttm_mem_reg *mem) -{ - struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type]; - - mem->bus.addr = NULL; - mem->bus.offset = 0; - mem->bus.size = mem->num_pages << PAGE_SHIFT; - mem->bus.base = 0; - mem->bus.is_iomem = false; - if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE)) - return -EINVAL; - switch (mem->mem_type) { - case TTM_PL_SYSTEM: - case TTM_PL_TT: - /* system memory */ - return 0; - default: - return -EINVAL; - } - return 0; -} - -static void virtio_gpu_ttm_io_mem_free(struct ttm_bo_device *bdev, - struct ttm_mem_reg *mem) -{ -} - -/* - * TTM backend functions. - */ -struct virtio_gpu_ttm_tt { - struct ttm_dma_tt ttm; - struct virtio_gpu_object *obj; -}; - -static int virtio_gpu_ttm_tt_bind(struct ttm_tt *ttm, - struct ttm_mem_reg *bo_mem) -{ - struct virtio_gpu_ttm_tt *gtt = - container_of(ttm, struct virtio_gpu_ttm_tt, ttm.ttm); - struct virtio_gpu_device *vgdev = - virtio_gpu_get_vgdev(gtt->obj->tbo.bdev); - - virtio_gpu_object_attach(vgdev, gtt->obj, NULL); - return 0; -} - -static int virtio_gpu_ttm_tt_unbind(struct ttm_tt *ttm) -{ - struct virtio_gpu_ttm_tt *gtt = - container_of(ttm, struct virtio_gpu_ttm_tt, ttm.ttm); - struct virtio_gpu_device *vgdev = - virtio_gpu_get_vgdev(gtt->obj->tbo.bdev); - - virtio_gpu_object_detach(vgdev, gtt->obj); - return 0; -} - -static void virtio_gpu_ttm_tt_destroy(struct ttm_tt *ttm) -{ - struct virtio_gpu_ttm_tt *gtt = - container_of(ttm, struct virtio_gpu_ttm_tt, ttm.ttm); - - ttm_dma_tt_fini(>t->ttm); - kfree(gtt); -} - -static struct ttm_backend_func virtio_gpu_tt_func = { - .bind = &virtio_gpu_ttm_tt_bind, - .unbind = &virtio_gpu_ttm_tt_unbind, - .destroy = &virtio_gpu_ttm_tt_destroy, -}; - -static struct ttm_tt *virtio_gpu_ttm_tt_create(struct ttm_buffer_object *bo, - uint32_t page_flags) -{ - struct virtio_gpu_device *vgdev; - struct virtio_gpu_ttm_tt *gtt; - - vgdev = virtio_gpu_get_vgdev(bo->bdev); - gtt = kzalloc(sizeof(struct virtio_gpu_ttm_tt), GFP_KERNEL); - if (gtt == NULL) - return NULL; - gtt->ttm.ttm.func = &virtio_gpu_tt_func; - gtt->obj = container_of(bo, struct virtio_gpu_object, tbo); - if (ttm_dma_tt_init(>t->ttm, bo, page_flags)) { - kfree(gtt); - return NULL; - } - return >t->ttm.ttm; -} - -static void virtio_gpu_bo_swap_notify(struct ttm_buffer_object *tbo) -{ - struct virtio_gpu_object *bo; - - bo = container_of(tbo, struct virtio_gpu_object, tbo); - - if (bo->pages) - virtio_gpu_object_free_sg_table(bo); -} - -static struct ttm_bo_driver virtio_gpu_bo_driver = { - .ttm_tt_create = &virtio_gpu_ttm_tt_create, - .invalidate_caches = &virtio_gpu_invalidate_caches, - .init_mem_type = &virtio_gpu_init_mem_type, - .eviction_valuable = ttm_bo_eviction_valuable, - .evict_flags = &virtio_gpu_evict_flags, - .verify_access = &virtio_gpu_verify_access, - .io_mem_reserve = &virtio_gpu_ttm_io_mem_reserve, - .io_mem_free = &virtio_gpu_ttm_io_mem_free, - .swap_notify = &virtio_gpu_bo_swap_notify, -}; - -int virtio_gpu_ttm_init(struct virtio_gpu_device *vgdev) -{ - int r; - - /* No others user of address space so set it to 0 */ - r = ttm_bo_device_init(&vgdev->mman.bdev, - &virtio_gpu_bo_driver, - vgdev->ddev->anon_inode->i_mapping, - false); - if (r) { - DRM_ERROR("failed initializing buffer object driver(%d).\n", r); - goto err_dev_init; - } - - r = ttm_bo_init_mm(&vgdev->mman.bdev, TTM_PL_TT, 0); - if (r) { - DRM_ERROR("Failed initializing GTT heap.\n"); - goto err_mm_init; - } - return 0; - -err_mm_init: - ttm_bo_device_release(&vgdev->mman.bdev); -err_dev_init: - return r; -} - -void virtio_gpu_ttm_fini(struct virtio_gpu_device *vgdev) -{ - ttm_bo_device_release(&vgdev->mman.bdev); - DRM_INFO("virtio_gpu: ttm finalized\n"); -} diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c index 7a316e92c783..4ecb376bd75c 100644 --- a/drivers/gpu/drm/virtio/virtgpu_vq.c +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c @@ -993,17 +993,21 @@ int virtio_gpu_object_attach(struct virtio_gpu_device *vgdev, bool use_dma_api = !virtio_has_iommu_quirk(vgdev->vdev); struct virtio_gpu_mem_entry *ents; struct scatterlist *sg; - int si, nents; + int si, nents, ret;
if (WARN_ON_ONCE(!obj->created)) return -EINVAL; + if (WARN_ON_ONCE(obj->pages)) + return -EINVAL;
- if (!obj->pages) { - int ret; + ret = drm_gem_shmem_pin(&obj->base.base); + if (ret < 0) + return -EINVAL;
- ret = virtio_gpu_object_get_sg_table(vgdev, obj); - if (ret) - return ret; + obj->pages = drm_gem_shmem_get_sg_table(&obj->base.base); + if (obj->pages == NULL) { + drm_gem_shmem_unpin(&obj->base.base); + return -EINVAL; }
if (use_dma_api) { @@ -1042,6 +1046,9 @@ void virtio_gpu_object_detach(struct virtio_gpu_device *vgdev, { bool use_dma_api = !virtio_has_iommu_quirk(vgdev->vdev);
+ if (WARN_ON_ONCE(!obj->pages)) + return; + if (use_dma_api && obj->mapped) { struct virtio_gpu_fence *fence = virtio_gpu_fence_alloc(vgdev); /* detach backing and wait for the host process it ... */ @@ -1057,6 +1064,11 @@ void virtio_gpu_object_detach(struct virtio_gpu_device *vgdev, } else { virtio_gpu_cmd_resource_inval_backing(vgdev, obj->hw_res_handle, NULL); } + + sg_free_table(obj->pages); + obj->pages = NULL; + + drm_gem_shmem_unpin(&obj->base.base); }
void virtio_gpu_cursor_ping(struct virtio_gpu_device *vgdev, diff --git a/drivers/gpu/drm/virtio/Kconfig b/drivers/gpu/drm/virtio/Kconfig index ba36e933bb49..eff3047052d4 100644 --- a/drivers/gpu/drm/virtio/Kconfig +++ b/drivers/gpu/drm/virtio/Kconfig @@ -3,7 +3,7 @@ config DRM_VIRTIO_GPU tristate "Virtio GPU driver" depends on DRM && VIRTIO && MMU select DRM_KMS_HELPER - select DRM_TTM + select DRM_GEM_SHMEM_HELPER 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/Makefile b/drivers/gpu/drm/virtio/Makefile index 458e606a936f..92aa2b3d349d 100644 --- a/drivers/gpu/drm/virtio/Makefile +++ b/drivers/gpu/drm/virtio/Makefile @@ -4,7 +4,7 @@ # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
virtio-gpu-y := virtgpu_drv.o virtgpu_kms.o virtgpu_gem.o \ - virtgpu_display.o virtgpu_vq.o virtgpu_ttm.o \ + virtgpu_display.o virtgpu_vq.o \ virtgpu_fence.o virtgpu_object.o virtgpu_debugfs.o virtgpu_plane.o \ virtgpu_ioctl.o virtgpu_prime.o virtgpu_trace_points.o
Thin wrapper around virtio_gpu_object_create(), but calling that directly works equally well.
Signed-off-by: Gerd Hoffmann kraxel@redhat.com Acked-by: Daniel Vetter daniel.vetter@ffwll.ch --- drivers/gpu/drm/virtio/virtgpu_drv.h | 4 ---- drivers/gpu/drm/virtio/virtgpu_gem.c | 23 ++++------------------- drivers/gpu/drm/virtio/virtgpu_ioctl.c | 6 +++--- 3 files changed, 7 insertions(+), 26 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index 1d6e4ffee7d1..d4d82679d83a 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -229,10 +229,6 @@ int virtio_gpu_gem_object_open(struct drm_gem_object *obj, struct drm_file *file); void virtio_gpu_gem_object_close(struct drm_gem_object *obj, struct drm_file *file); -struct virtio_gpu_object* -virtio_gpu_alloc_object(struct drm_device *dev, - struct virtio_gpu_object_params *params, - struct virtio_gpu_fence *fence); int virtio_gpu_mode_dumb_create(struct drm_file *file_priv, struct drm_device *dev, struct drm_mode_create_dumb *args); diff --git a/drivers/gpu/drm/virtio/virtgpu_gem.c b/drivers/gpu/drm/virtio/virtgpu_gem.c index 0cba78bcf39c..33cc5ab31356 100644 --- a/drivers/gpu/drm/virtio/virtgpu_gem.c +++ b/drivers/gpu/drm/virtio/virtgpu_gem.c @@ -28,35 +28,20 @@
#include "virtgpu_drv.h"
-struct virtio_gpu_object* -virtio_gpu_alloc_object(struct drm_device *dev, - struct virtio_gpu_object_params *params, - struct virtio_gpu_fence *fence) -{ - 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_device *vgdev = dev->dev_private; 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->base.base, &handle); if (ret) { diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c index 865b3b8400ed..890bc55183cc 100644 --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c @@ -256,10 +256,10 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data, fence = virtio_gpu_fence_alloc(vgdev); if (!fence) return -ENOMEM; - qobj = virtio_gpu_alloc_object(dev, ¶ms, fence); + ret = virtio_gpu_object_create(vgdev, ¶ms, &qobj, fence); dma_fence_put(&fence->f); - if (IS_ERR(qobj)) - return PTR_ERR(qobj); + if (ret < 0) + return ret; obj = &qobj->base.base;
ret = drm_gem_handle_create(file_priv, obj, &handle);
No users left.
Signed-off-by: Gerd Hoffmann kraxel@redhat.com --- drivers/gpu/drm/virtio/virtgpu_drv.h | 15 --------------- 1 file changed, 15 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index d4d82679d83a..59f71dc94017 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -363,21 +363,6 @@ struct drm_gem_object *virtgpu_gem_prime_import_sg_table( struct drm_device *dev, struct dma_buf_attachment *attach, struct sg_table *sgt);
-static inline struct virtio_gpu_object* -virtio_gpu_object_ref(struct virtio_gpu_object *bo) -{ - drm_gem_object_get(&bo->base.base); - return bo; -} - -static inline void virtio_gpu_object_unref(struct virtio_gpu_object **bo) -{ - if ((*bo) == NULL) - return; - drm_gem_object_put(&(*bo)->base.base); - *bo = NULL; -} - static inline u64 virtio_gpu_object_mmap_offset(struct virtio_gpu_object *bo) { return drm_vma_node_offset_addr(&bo->base.base.vma_node);
No users left.
Signed-off-by: Gerd Hoffmann kraxel@redhat.com --- drivers/gpu/drm/virtio/virtgpu_drv.h | 21 --------------------- 1 file changed, 21 deletions(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h index 59f71dc94017..fb35831ed351 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.h +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h @@ -368,27 +368,6 @@ static inline u64 virtio_gpu_object_mmap_offset(struct virtio_gpu_object *bo) return drm_vma_node_offset_addr(&bo->base.base.vma_node); }
-static inline int virtio_gpu_object_reserve(struct virtio_gpu_object *bo) -{ - int r; - - r = reservation_object_lock_interruptible(bo->base.base.resv, NULL); - if (unlikely(r != 0)) { - if (r != -EINTR) { - struct virtio_gpu_device *qdev = - bo->base.base.dev->dev_private; - dev_err(qdev->dev, "%p reserve failed\n", bo); - } - return r; - } - return 0; -} - -static inline void virtio_gpu_object_unreserve(struct virtio_gpu_object *bo) -{ - reservation_object_unlock(bo->base.base.resv); -} - /* virgl debufs */ int virtio_gpu_debugfs_init(struct drm_minor *minor);
Make sure we don't leak half-initialized fences outside the driver.
Signed-off-by: Gerd Hoffmann kraxel@redhat.com --- drivers/gpu/drm/virtio/virtgpu_fence.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/virtio/virtgpu_fence.c b/drivers/gpu/drm/virtio/virtgpu_fence.c index a0514f5bd006..a4b9881ca1d3 100644 --- a/drivers/gpu/drm/virtio/virtgpu_fence.c +++ b/drivers/gpu/drm/virtio/virtgpu_fence.c @@ -41,6 +41,10 @@ bool virtio_fence_signaled(struct dma_fence *f) { struct virtio_gpu_fence *fence = to_virtio_fence(f);
+ if (WARN_ON_ONCE(fence->f.seqno == 0)) + /* leaked fence outside driver before completing + * initialization with virtio_gpu_fence_emit */ + return false; if (atomic64_read(&fence->drv->last_seq) >= fence->f.seqno) return true; return false;
dri-devel@lists.freedesktop.org
-
Gerd Hoffmann