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path: root/drivers/accel/qaic/qaic_data.c
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Diffstat (limited to 'drivers/accel/qaic/qaic_data.c')
-rw-r--r--drivers/accel/qaic/qaic_data.c59
1 files changed, 26 insertions, 33 deletions
diff --git a/drivers/accel/qaic/qaic_data.c b/drivers/accel/qaic/qaic_data.c
index 03c9a793da35..2459fe4a3f95 100644
--- a/drivers/accel/qaic/qaic_data.c
+++ b/drivers/accel/qaic/qaic_data.c
@@ -141,6 +141,11 @@ struct dbc_rsp {
__le16 status;
} __packed;
+static inline bool bo_queued(struct qaic_bo *bo)
+{
+ return !list_empty(&bo->xfer_list);
+}
+
inline int get_dbc_req_elem_size(void)
{
return sizeof(struct dbc_req);
@@ -569,6 +574,9 @@ static void qaic_free_sgt(struct sg_table *sgt)
{
struct scatterlist *sg;
+ if (!sgt)
+ return;
+
for (sg = sgt->sgl; sg; sg = sg_next(sg))
if (sg_page(sg))
__free_pages(sg_page(sg), get_order(sg->length));
@@ -648,6 +656,7 @@ static void qaic_init_bo(struct qaic_bo *bo, bool reinit)
}
complete_all(&bo->xfer_done);
INIT_LIST_HEAD(&bo->slices);
+ INIT_LIST_HEAD(&bo->xfer_list);
}
static struct qaic_bo *qaic_alloc_init_bo(void)
@@ -709,9 +718,13 @@ int qaic_create_bo_ioctl(struct drm_device *dev, void *data, struct drm_file *fi
if (ret)
goto free_bo;
+ ret = drm_gem_create_mmap_offset(obj);
+ if (ret)
+ goto free_bo;
+
ret = drm_gem_handle_create(file_priv, obj, &args->handle);
if (ret)
- goto free_sgt;
+ goto free_bo;
bo->handle = args->handle;
drm_gem_object_put(obj);
@@ -720,10 +733,8 @@ int qaic_create_bo_ioctl(struct drm_device *dev, void *data, struct drm_file *fi
return 0;
-free_sgt:
- qaic_free_sgt(bo->sgt);
free_bo:
- kfree(bo);
+ drm_gem_object_put(obj);
unlock_dev_srcu:
srcu_read_unlock(&qdev->dev_lock, qdev_rcu_id);
unlock_usr_srcu:
@@ -738,7 +749,7 @@ int qaic_mmap_bo_ioctl(struct drm_device *dev, void *data, struct drm_file *file
struct drm_gem_object *obj;
struct qaic_device *qdev;
struct qaic_user *usr;
- int ret;
+ int ret = 0;
usr = file_priv->driver_priv;
usr_rcu_id = srcu_read_lock(&usr->qddev_lock);
@@ -760,9 +771,7 @@ int qaic_mmap_bo_ioctl(struct drm_device *dev, void *data, struct drm_file *file
goto unlock_dev_srcu;
}
- ret = drm_gem_create_mmap_offset(obj);
- if (ret == 0)
- args->offset = drm_vma_node_offset_addr(&obj->vma_node);
+ args->offset = drm_vma_node_offset_addr(&obj->vma_node);
drm_gem_object_put(obj);
@@ -828,9 +837,6 @@ static int qaic_prepare_import_bo(struct qaic_bo *bo, struct qaic_attach_slice_h
struct sg_table *sgt;
int ret;
- if (obj->import_attach->dmabuf->size < hdr->size)
- return -EINVAL;
-
sgt = dma_buf_map_attachment(obj->import_attach, hdr->dir);
if (IS_ERR(sgt)) {
ret = PTR_ERR(sgt);
@@ -847,9 +853,6 @@ static int qaic_prepare_export_bo(struct qaic_device *qdev, struct qaic_bo *bo,
{
int ret;
- if (bo->base.size < hdr->size)
- return -EINVAL;
-
ret = dma_map_sgtable(&qdev->pdev->dev, bo->sgt, hdr->dir, 0);
if (ret)
return -EFAULT;
@@ -950,9 +953,6 @@ int qaic_attach_slice_bo_ioctl(struct drm_device *dev, void *data, struct drm_fi
if (arg_size / args->hdr.count != sizeof(*slice_ent))
return -EINVAL;
- if (args->hdr.size == 0)
- return -EINVAL;
-
if (!(args->hdr.dir == DMA_TO_DEVICE || args->hdr.dir == DMA_FROM_DEVICE))
return -EINVAL;
@@ -992,16 +992,16 @@ int qaic_attach_slice_bo_ioctl(struct drm_device *dev, void *data, struct drm_fi
goto free_slice_ent;
}
- ret = qaic_validate_req(qdev, slice_ent, args->hdr.count, args->hdr.size);
- if (ret)
- goto free_slice_ent;
-
obj = drm_gem_object_lookup(file_priv, args->hdr.handle);
if (!obj) {
ret = -ENOENT;
goto free_slice_ent;
}
+ ret = qaic_validate_req(qdev, slice_ent, args->hdr.count, obj->size);
+ if (ret)
+ goto put_bo;
+
bo = to_qaic_bo(obj);
ret = mutex_lock_interruptible(&bo->lock);
if (ret)
@@ -1173,7 +1173,6 @@ static int send_bo_list_to_device(struct qaic_device *qdev, struct drm_file *fil
struct bo_slice *slice;
unsigned long flags;
struct qaic_bo *bo;
- bool queued;
int i, j;
int ret;
@@ -1205,9 +1204,7 @@ static int send_bo_list_to_device(struct qaic_device *qdev, struct drm_file *fil
}
spin_lock_irqsave(&dbc->xfer_lock, flags);
- queued = bo->queued;
- bo->queued = true;
- if (queued) {
+ if (bo_queued(bo)) {
spin_unlock_irqrestore(&dbc->xfer_lock, flags);
ret = -EINVAL;
goto unlock_bo;
@@ -1230,7 +1227,6 @@ static int send_bo_list_to_device(struct qaic_device *qdev, struct drm_file *fil
else
ret = copy_exec_reqs(qdev, slice, dbc->id, head, tail);
if (ret) {
- bo->queued = false;
spin_unlock_irqrestore(&dbc->xfer_lock, flags);
goto unlock_bo;
}
@@ -1253,8 +1249,7 @@ failed_to_send_bo:
spin_lock_irqsave(&dbc->xfer_lock, flags);
bo = list_last_entry(&dbc->xfer_list, struct qaic_bo, xfer_list);
obj = &bo->base;
- bo->queued = false;
- list_del(&bo->xfer_list);
+ list_del_init(&bo->xfer_list);
spin_unlock_irqrestore(&dbc->xfer_lock, flags);
dma_sync_sgtable_for_cpu(&qdev->pdev->dev, bo->sgt, bo->dir);
drm_gem_object_put(obj);
@@ -1615,8 +1610,7 @@ read_fifo:
*/
dma_sync_sgtable_for_cpu(&qdev->pdev->dev, bo->sgt, bo->dir);
bo->nr_slice_xfer_done = 0;
- bo->queued = false;
- list_del(&bo->xfer_list);
+ list_del_init(&bo->xfer_list);
bo->perf_stats.req_processed_ts = ktime_get_ns();
complete_all(&bo->xfer_done);
drm_gem_object_put(&bo->base);
@@ -1875,7 +1869,7 @@ int qaic_detach_slice_bo_ioctl(struct drm_device *dev, void *data, struct drm_fi
/* Check if BO is committed to H/W for DMA */
spin_lock_irqsave(&dbc->xfer_lock, flags);
- if (bo->queued) {
+ if (bo_queued(bo)) {
spin_unlock_irqrestore(&dbc->xfer_lock, flags);
ret = -EBUSY;
goto unlock_ch_srcu;
@@ -1905,8 +1899,7 @@ static void empty_xfer_list(struct qaic_device *qdev, struct dma_bridge_chan *db
spin_lock_irqsave(&dbc->xfer_lock, flags);
while (!list_empty(&dbc->xfer_list)) {
bo = list_first_entry(&dbc->xfer_list, typeof(*bo), xfer_list);
- bo->queued = false;
- list_del(&bo->xfer_list);
+ list_del_init(&bo->xfer_list);
spin_unlock_irqrestore(&dbc->xfer_lock, flags);
bo->nr_slice_xfer_done = 0;
bo->req_id = 0;
generated by cgit (git 2.34.1) at 2024-06-04 22:57:14 +0000