| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* include this file if the platform implements the dma_ DMA Mapping API |
| * and wants to provide the pci_ DMA Mapping API in terms of it */ |
| |
| #ifndef _ASM_GENERIC_PCI_DMA_COMPAT_H |
| #define _ASM_GENERIC_PCI_DMA_COMPAT_H |
| |
| #include <linux/dma-mapping.h> |
| |
| /* This defines the direction arg to the DMA mapping routines. */ |
| #define PCI_DMA_BIDIRECTIONAL DMA_BIDIRECTIONAL |
| #define PCI_DMA_TODEVICE DMA_TO_DEVICE |
| #define PCI_DMA_FROMDEVICE DMA_FROM_DEVICE |
| #define PCI_DMA_NONE DMA_NONE |
| |
| static inline void * |
| pci_alloc_consistent(struct pci_dev *hwdev, size_t size, |
| dma_addr_t *dma_handle) |
| { |
| return dma_alloc_coherent(&hwdev->dev, size, dma_handle, GFP_ATOMIC); |
| } |
| |
| static inline void * |
| pci_zalloc_consistent(struct pci_dev *hwdev, size_t size, |
| dma_addr_t *dma_handle) |
| { |
| return dma_alloc_coherent(&hwdev->dev, size, dma_handle, GFP_ATOMIC); |
| } |
| |
| static inline void |
| pci_free_consistent(struct pci_dev *hwdev, size_t size, |
| void *vaddr, dma_addr_t dma_handle) |
| { |
| dma_free_coherent(&hwdev->dev, size, vaddr, dma_handle); |
| } |
| |
| static inline dma_addr_t |
| pci_map_single(struct pci_dev *hwdev, void *ptr, size_t size, int direction) |
| { |
| return dma_map_single(&hwdev->dev, ptr, size, (enum dma_data_direction)direction); |
| } |
| |
| static inline void |
| pci_unmap_single(struct pci_dev *hwdev, dma_addr_t dma_addr, |
| size_t size, int direction) |
| { |
| dma_unmap_single(&hwdev->dev, dma_addr, size, (enum dma_data_direction)direction); |
| } |
| |
| static inline dma_addr_t |
| pci_map_page(struct pci_dev *hwdev, struct page *page, |
| unsigned long offset, size_t size, int direction) |
| { |
| return dma_map_page(&hwdev->dev, page, offset, size, (enum dma_data_direction)direction); |
| } |
| |
| static inline void |
| pci_unmap_page(struct pci_dev *hwdev, dma_addr_t dma_address, |
| size_t size, int direction) |
| { |
| dma_unmap_page(&hwdev->dev, dma_address, size, (enum dma_data_direction)direction); |
| } |
| |
| static inline int |
| pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg, |
| int nents, int direction) |
| { |
| return dma_map_sg(&hwdev->dev, sg, nents, (enum dma_data_direction)direction); |
| } |
| |
| static inline void |
| pci_unmap_sg(struct pci_dev *hwdev, struct scatterlist *sg, |
| int nents, int direction) |
| { |
| dma_unmap_sg(&hwdev->dev, sg, nents, (enum dma_data_direction)direction); |
| } |
| |
| static inline void |
| pci_dma_sync_single_for_cpu(struct pci_dev *hwdev, dma_addr_t dma_handle, |
| size_t size, int direction) |
| { |
| dma_sync_single_for_cpu(&hwdev->dev, dma_handle, size, (enum dma_data_direction)direction); |
| } |
| |
| static inline void |
| pci_dma_sync_single_for_device(struct pci_dev *hwdev, dma_addr_t dma_handle, |
| size_t size, int direction) |
| { |
| dma_sync_single_for_device(&hwdev->dev, dma_handle, size, (enum dma_data_direction)direction); |
| } |
| |
| static inline void |
| pci_dma_sync_sg_for_cpu(struct pci_dev *hwdev, struct scatterlist *sg, |
| int nelems, int direction) |
| { |
| dma_sync_sg_for_cpu(&hwdev->dev, sg, nelems, (enum dma_data_direction)direction); |
| } |
| |
| static inline void |
| pci_dma_sync_sg_for_device(struct pci_dev *hwdev, struct scatterlist *sg, |
| int nelems, int direction) |
| { |
| dma_sync_sg_for_device(&hwdev->dev, sg, nelems, (enum dma_data_direction)direction); |
| } |
| |
| static inline int |
| pci_dma_mapping_error(struct pci_dev *pdev, dma_addr_t dma_addr) |
| { |
| return dma_mapping_error(&pdev->dev, dma_addr); |
| } |
| |
| #ifdef CONFIG_PCI |
| static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask) |
| { |
| return dma_set_mask(&dev->dev, mask); |
| } |
| |
| static inline int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask) |
| { |
| return dma_set_coherent_mask(&dev->dev, mask); |
| } |
| #else |
| static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask) |
| { return -EIO; } |
| static inline int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask) |
| { return -EIO; } |
| #endif |
| |
| #endif |