diff options
Diffstat (limited to 'drivers/dma/idxd/idxd.h')
| -rw-r--r-- | drivers/dma/idxd/idxd.h | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/dma/idxd/idxd.h b/drivers/dma/idxd/idxd.h index 76014c14f473..80e534680c9a 100644 --- a/drivers/dma/idxd/idxd.h +++ b/drivers/dma/idxd/idxd.h @@ -14,6 +14,9 @@ extern struct kmem_cache *idxd_desc_pool; +struct idxd_device; +struct idxd_wq; + #define IDXD_REG_TIMEOUT 50 #define IDXD_DRAIN_TIMEOUT 5000 @@ -96,6 +99,11 @@ enum idxd_complete_type { IDXD_COMPLETE_DEV_FAIL, }; +struct idxd_dma_chan { + struct dma_chan chan; + struct idxd_wq *wq; +}; + struct idxd_wq { void __iomem *portal; struct device conf_dev; @@ -125,7 +133,7 @@ struct idxd_wq { int compls_size; struct idxd_desc **descs; struct sbitmap_queue sbq; - struct dma_chan dma_chan; + struct idxd_dma_chan *idxd_chan; char name[WQ_NAME_SIZE + 1]; u64 max_xfer_bytes; u32 max_batch_size; @@ -162,6 +170,11 @@ enum idxd_device_flag { IDXD_FLAG_PASID_ENABLED, }; +struct idxd_dma_dev { + struct idxd_device *idxd; + struct dma_device dma; +}; + struct idxd_device { enum idxd_type type; struct device conf_dev; @@ -210,7 +223,7 @@ struct idxd_device { int num_wq_irqs; struct idxd_irq_entry *irq_entries; - struct dma_device dma_dev; + struct idxd_dma_dev *idxd_dma; struct workqueue_struct *wq; struct work_struct work; }; @@ -363,7 +376,6 @@ void idxd_unregister_dma_channel(struct idxd_wq *wq); void idxd_parse_completion_status(u8 status, enum dmaengine_tx_result *res); void idxd_dma_complete_txd(struct idxd_desc *desc, enum idxd_complete_type comp_type); -dma_cookie_t idxd_dma_tx_submit(struct dma_async_tx_descriptor *tx); /* cdev */ int idxd_cdev_register(void); |