/* SPDX-License-Identifier: GPL-2.0-only */ /* Copyright (C) 2013--2025 Intel Corporation */ #ifndef IPU7_DMA_H #define IPU7_DMA_H #include <linux/dma-map-ops.h> #include <linux/dma-mapping.h> #include <linux/iova.h> #include <linux/scatterlist.h> #include <linux/types.h> #include "ipu7-bus.h" #define DMA_ATTR_RESERVE_REGION BIT(31) struct ipu7_mmu_info; struct ipu7_dma_mapping { struct ipu7_mmu_info *mmu_info; struct iova_domain iovad; }; void ipu7_dma_sync_single(struct ipu7_bus_device *sys, dma_addr_t dma_handle, size_t size); void ipu7_dma_sync_sg(struct ipu7_bus_device *sys, struct scatterlist *sglist, unsigned int nents); void ipu7_dma_sync_sgtable(struct ipu7_bus_device *sys, struct sg_table *sgt); void *ipu7_dma_alloc(struct ipu7_bus_device *sys, size_t size, dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs); void ipu7_dma_free(struct ipu7_bus_device *sys, size_t size, void *vaddr, dma_addr_t dma_handle, unsigned long attrs); int ipu7_dma_mmap(struct ipu7_bus_device *sys, struct vm_area_struct *vma, void *addr, dma_addr_t iova, size_t size, unsigned long attrs); int ipu7_dma_map_sg(struct ipu7_bus_device *sys, struct scatterlist *sglist, int nents, enum dma_data_direction dir, unsigned long attrs); void ipu7_dma_unmap_sg(struct ipu7_bus_device *sys, struct scatterlist *sglist, int nents, enum dma_data_direction dir, unsigned long attrs); int ipu7_dma_map_sgtable(struct ipu7_bus_device *sys, struct sg_table *sgt, enum dma_data_direction dir, unsigned long attrs); void ipu7_dma_unmap_sgtable(struct ipu7_bus_device *sys, struct sg_table *sgt, enum dma_data_direction dir, unsigned long attrs); #endif /* IPU7_DMA_H */