diff options
Diffstat (limited to 'drivers/media/pci/intel/ipu6/ipu6-dma.h')
| -rw-r--r-- | drivers/media/pci/intel/ipu6/ipu6-dma.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/media/pci/intel/ipu6/ipu6-dma.h b/drivers/media/pci/intel/ipu6/ipu6-dma.h new file mode 100644 index 000000000000..ae9b9a5df57f --- /dev/null +++ b/drivers/media/pci/intel/ipu6/ipu6-dma.h @@ -0,0 +1,43 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* Copyright (C) 2013--2024 Intel Corporation */ + +#ifndef IPU6_DMA_H +#define IPU6_DMA_H + +#include <linux/iova.h> +#include <linux/scatterlist.h> +#include <linux/types.h> + +#include "ipu6-bus.h" + +struct ipu6_mmu_info; + +struct ipu6_dma_mapping { + struct ipu6_mmu_info *mmu_info; + struct iova_domain iovad; +}; + +void ipu6_dma_sync_single(struct ipu6_bus_device *sys, dma_addr_t dma_handle, + size_t size); +void ipu6_dma_sync_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist, + int nents); +void ipu6_dma_sync_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt); +void *ipu6_dma_alloc(struct ipu6_bus_device *sys, size_t size, + dma_addr_t *dma_handle, gfp_t gfp, + unsigned long attrs); +void ipu6_dma_free(struct ipu6_bus_device *sys, size_t size, void *vaddr, + dma_addr_t dma_handle, unsigned long attrs); +int ipu6_dma_mmap(struct ipu6_bus_device *sys, struct vm_area_struct *vma, + void *addr, dma_addr_t iova, size_t size, + unsigned long attrs); +int ipu6_dma_map_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist, + int nents, enum dma_data_direction dir, + unsigned long attrs); +void ipu6_dma_unmap_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist, + int nents, enum dma_data_direction dir, + unsigned long attrs); +int ipu6_dma_map_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt, + enum dma_data_direction dir, unsigned long attrs); +void ipu6_dma_unmap_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt, + enum dma_data_direction dir, unsigned long attrs); +#endif /* IPU6_DMA_H */ |