drivers/media/pci/intel/ipu6/ipu6-dma.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /* Copyright (C) 2013--2024 Intel Corporation */
   3
   4 #ifndef IPU6_DMA_H
   5 #define IPU6_DMA_H
   6
   7 #include <linux/dma-map-ops.h>
   8 #include <linux/dma-mapping.h>
   9 #include <linux/iova.h>
  10 #include <linux/iova.h>
  11 #include <linux/scatterlist.h>
  12 #include <linux/types.h>
  13
  14 #include "ipu6-bus.h"
  15
  16 struct ipu6_mmu_info;
  17
  18 struct ipu6_dma_mapping {
  19         struct ipu6_mmu_info *mmu_info;
  20         struct iova_domain iovad;
  21 };
  22
  23 void ipu6_dma_sync_single(struct ipu6_bus_device *sys, dma_addr_t dma_handle,
  24                           size_t size);
  25 void ipu6_dma_sync_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist,
  26                       int nents);
  27 void ipu6_dma_sync_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt);
  28 void *ipu6_dma_alloc(struct ipu6_bus_device *sys, size_t size,
  29                      dma_addr_t *dma_handle, gfp_t gfp,
  30                      unsigned long attrs);
  31 void ipu6_dma_free(struct ipu6_bus_device *sys, size_t size, void *vaddr,
  32                    dma_addr_t dma_handle, unsigned long attrs);
  33 int ipu6_dma_mmap(struct ipu6_bus_device *sys, struct vm_area_struct *vma,
  34                   void *addr, dma_addr_t iova, size_t size,
  35                   unsigned long attrs);
  36 int ipu6_dma_map_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist,
  37                     int nents, enum dma_data_direction dir,
  38                     unsigned long attrs);
  39 void ipu6_dma_unmap_sg(struct ipu6_bus_device *sys, struct scatterlist *sglist,
  40                        int nents, enum dma_data_direction dir,
  41                        unsigned long attrs);
  42 int ipu6_dma_map_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt,
  43                          enum dma_data_direction dir, unsigned long attrs);
  44 void ipu6_dma_unmap_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt,
  45                             enum dma_data_direction dir, unsigned long attrs);
  46 int ipu6_dma_get_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt,
  47                          void *cpu_addr, dma_addr_t handle, size_t size,
  48                          unsigned long attrs);
  49 #endif /* IPU6_DMA_H */