website-struct

Struct: dma_device

Status

Regular

• In 4.4: ✅

  struct dma_device {
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      dma_cap_mask_t cap_mask;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_sg)(struct dma_chan *, struct scatterlist *, unsigned int, struct scatterlist *, unsigned int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
  };
  

• In 4.8: ✅

  struct dma_device {
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 max_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_sg)(struct dma_chan *, struct scatterlist *, unsigned int, struct scatterlist *, unsigned int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
  };
  

• In 4.10: ✅

  struct dma_device {
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 max_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_sg)(struct dma_chan *, struct scatterlist *, unsigned int, struct scatterlist *, unsigned int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
  };
  

• In 4.13: ✅

  struct dma_device {
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 max_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_sg)(struct dma_chan *, struct scatterlist *, unsigned int, struct scatterlist *, unsigned int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
  };
  

• In 4.15: ✅

  struct dma_device {
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 max_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
  };
  

• In 4.18: ✅

  struct dma_device {
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 max_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
  };
  

• In 5.0: ✅

  struct dma_device {
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 max_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
  };
  

• In 5.3: ✅

  struct dma_device {
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 max_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
  };
  

• In 5.4: ✅

  struct dma_device {
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      struct module *owner;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 max_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
  };
  

• In 5.8: ✅

  struct dma_device {
      struct kref ref;
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      enum dma_desc_metadata_mode desc_metadata_modes;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      struct module *owner;
      struct ida chan_ida;
      struct mutex chan_mutex;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 max_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
      void (*device_release)(struct dma_device *);
      void (*dbg_summary_show)(struct seq_file *, struct dma_device *);
      struct dentry *dbg_dev_root;
  };
  

• In 5.11: ✅

  struct dma_device {
      struct kref ref;
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      enum dma_desc_metadata_mode desc_metadata_modes;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      struct module *owner;
      struct ida chan_ida;
      struct mutex chan_mutex;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 min_burst;
      u32 max_burst;
      u32 max_sg_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      int (*device_router_config)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      void (*device_caps)(struct dma_chan *, struct dma_slave_caps *);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
      void (*device_release)(struct dma_device *);
      void (*dbg_summary_show)(struct seq_file *, struct dma_device *);
      struct dentry *dbg_dev_root;
  };
  

• In 5.13: ✅

  struct dma_device {
      struct kref ref;
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      enum dma_desc_metadata_mode desc_metadata_modes;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      struct module *owner;
      struct ida chan_ida;
      struct mutex chan_mutex;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 min_burst;
      u32 max_burst;
      u32 max_sg_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      int (*device_router_config)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      void (*device_caps)(struct dma_chan *, struct dma_slave_caps *);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
      void (*device_release)(struct dma_device *);
      void (*dbg_summary_show)(struct seq_file *, struct dma_device *);
      struct dentry *dbg_dev_root;
  };
  

• In 5.15: ✅

  struct dma_device {
      struct kref ref;
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      enum dma_desc_metadata_mode desc_metadata_modes;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      struct module *owner;
      struct ida chan_ida;
      struct mutex chan_mutex;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 min_burst;
      u32 max_burst;
      u32 max_sg_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      int (*device_router_config)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      void (*device_caps)(struct dma_chan *, struct dma_slave_caps *);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
      void (*device_release)(struct dma_device *);
      void (*dbg_summary_show)(struct seq_file *, struct dma_device *);
      struct dentry *dbg_dev_root;
  };
  

• In 5.19: ✅

  struct dma_device {
      struct kref ref;
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      enum dma_desc_metadata_mode desc_metadata_modes;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      struct module *owner;
      struct ida chan_ida;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 min_burst;
      u32 max_burst;
      u32 max_sg_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      int (*device_router_config)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy_sg)(struct dma_chan *, struct scatterlist *, unsigned int, struct scatterlist *, unsigned int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      void (*device_caps)(struct dma_chan *, struct dma_slave_caps *);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
      void (*device_release)(struct dma_device *);
      void (*dbg_summary_show)(struct seq_file *, struct dma_device *);
      struct dentry *dbg_dev_root;
  };
  

• In 6.2: ✅

  struct dma_device {
      struct kref ref;
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      enum dma_desc_metadata_mode desc_metadata_modes;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      struct module *owner;
      struct ida chan_ida;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 min_burst;
      u32 max_burst;
      u32 max_sg_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      int (*device_router_config)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      void (*device_caps)(struct dma_chan *, struct dma_slave_caps *);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
      void (*device_release)(struct dma_device *);
      void (*dbg_summary_show)(struct seq_file *, struct dma_device *);
      struct dentry *dbg_dev_root;
  };
  

• In 6.5: ✅

  struct dma_device {
      struct kref ref;
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      enum dma_desc_metadata_mode desc_metadata_modes;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      struct module *owner;
      struct ida chan_ida;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 min_burst;
      u32 max_burst;
      u32 max_sg_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      int (*device_router_config)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      void (*device_caps)(struct dma_chan *, struct dma_slave_caps *);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
      void (*device_release)(struct dma_device *);
      void (*dbg_summary_show)(struct seq_file *, struct dma_device *);
      struct dentry *dbg_dev_root;
  };
  

• In 6.8: ✅

  struct dma_device {
      struct kref ref;
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      enum dma_desc_metadata_mode desc_metadata_modes;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      struct module *owner;
      struct ida chan_ida;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 min_burst;
      u32 max_burst;
      u32 max_sg_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      int (*device_router_config)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      void (*device_caps)(struct dma_chan *, struct dma_slave_caps *);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
      void (*device_release)(struct dma_device *);
      void (*dbg_summary_show)(struct seq_file *, struct dma_device *);
      struct dentry *dbg_dev_root;
  };
  

Arch

• In arm64: ✅

  struct dma_device {
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      struct module *owner;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 max_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
  };
  

• In armhf: ✅

  struct dma_device {
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      struct module *owner;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 max_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
  };
  

• In ppc64el: ✅

  struct dma_device {
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      struct module *owner;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 max_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
  };
  

• In riscv64: ✅

  struct dma_device {
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      struct module *owner;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 max_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
  };
  

Flavor

• In aws: ✅

  struct dma_device {
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      struct module *owner;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 max_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
  };
  

• In azure: ✅

  struct dma_device {
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      struct module *owner;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 max_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
  };
  

• In gcp: ✅

  struct dma_device {
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      struct module *owner;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 max_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
  };
  

• In lowlatency: ✅

  struct dma_device {
      unsigned int chancnt;
      unsigned int privatecnt;
      struct list_head channels;
      struct list_head global_node;
      struct dma_filter filter;
      dma_cap_mask_t cap_mask;
      short unsigned int max_xor;
      short unsigned int max_pq;
      enum dmaengine_alignment copy_align;
      enum dmaengine_alignment xor_align;
      enum dmaengine_alignment pq_align;
      enum dmaengine_alignment fill_align;
      int dev_id;
      struct device *dev;
      struct module *owner;
      u32 src_addr_widths;
      u32 dst_addr_widths;
      u32 directions;
      u32 max_burst;
      bool descriptor_reuse;
      enum dma_residue_granularity residue_granularity;
      int (*device_alloc_chan_resources)(struct dma_chan *);
      void (*device_free_chan_resources)(struct dma_chan *);
      struct dma_async_tx_descriptor * (*device_prep_dma_memcpy)(struct dma_chan *, dma_addr_t, dma_addr_t, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor)(struct dma_chan *, dma_addr_t, dma_addr_t *, unsigned int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_xor_val)(struct dma_chan *, dma_addr_t *, unsigned int, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_pq_val)(struct dma_chan *, dma_addr_t *, dma_addr_t *, unsigned int, const unsigned char *, size_t, enum sum_check_flags *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset)(struct dma_chan *, dma_addr_t, int, size_t, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_memset_sg)(struct dma_chan *, struct scatterlist *, unsigned int, int, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_interrupt)(struct dma_chan *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_slave_sg)(struct dma_chan *, struct scatterlist *, unsigned int, enum dma_transfer_direction, long unsigned int, void *);
      struct dma_async_tx_descriptor * (*device_prep_dma_cyclic)(struct dma_chan *, dma_addr_t, size_t, size_t, enum dma_transfer_direction, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_interleaved_dma)(struct dma_chan *, struct dma_interleaved_template *, long unsigned int);
      struct dma_async_tx_descriptor * (*device_prep_dma_imm_data)(struct dma_chan *, dma_addr_t, u64, long unsigned int);
      int (*device_config)(struct dma_chan *, struct dma_slave_config *);
      int (*device_pause)(struct dma_chan *);
      int (*device_resume)(struct dma_chan *);
      int (*device_terminate_all)(struct dma_chan *);
      void (*device_synchronize)(struct dma_chan *);
      enum dma_status (*device_tx_status)(struct dma_chan *, dma_cookie_t, struct dma_tx_state *);
      void (*device_issue_pending)(struct dma_chan *);
  };
  

Differences

Regular

• Changed between 4.4 and 4.8 ⚠️

  • Field added. struct dma_filter filter
  • Field added. u32 max_burst
  • Field added. bool descriptor_reuse
  • Field added. void (*device_synchronize)(struct dma_chan *)
• No changes between 4.8 and 4.10 ✅
• No changes between 4.10 and 4.13 ✅
• Changed between 4.13 and 4.15 ⚠️

  • Field removed. struct dma_async_tx_descriptor * (*device_prep_dma_sg)(struct dma_chan *, struct scatterlist *, unsigned int, struct scatterlist *, unsigned int, long unsigned int)
• No changes between 4.15 and 4.18 ✅
• No changes between 4.18 and 5.0 ✅
• No changes between 5.0 and 5.3 ✅
• Changed between 5.3 and 5.4 ⚠️

  • Field added. struct module *owner
• Changed between 5.4 and 5.8 ⚠️

  • Field added. struct kref ref
  • Field added. enum dma_desc_metadata_mode desc_metadata_modes
  • Field added. struct ida chan_ida
  • Field added. struct mutex chan_mutex
  • Field added. void (*device_release)(struct dma_device *)
  • Field added. void (*dbg_summary_show)(struct seq_file *, struct dma_device *)
  • Field added. struct dentry *dbg_dev_root
• Changed between 5.8 and 5.11 ⚠️

  • Field added. u32 min_burst
  • Field added. u32 max_sg_burst
  • Field added. int (*device_router_config)(struct dma_chan *)
  • Field added. void (*device_caps)(struct dma_chan *, struct dma_slave_caps *)
• No changes between 5.11 and 5.13 ✅
• No changes between 5.13 and 5.15 ✅
• Changed between 5.15 and 5.19 ⚠️

  • Field added. struct dma_async_tx_descriptor * (*device_prep_dma_memcpy_sg)(struct dma_chan *, struct scatterlist *, unsigned int, struct scatterlist *, unsigned int, long unsigned int)
  • Field removed. struct mutex chan_mutex
• Changed between 5.19 and 6.2 ⚠️

  • Field removed. struct dma_async_tx_descriptor * (*device_prep_dma_memcpy_sg)(struct dma_chan *, struct scatterlist *, unsigned int, struct scatterlist *, unsigned int, long unsigned int)
• No changes between 6.2 and 6.5 ✅
• No changes between 6.5 and 6.8 ✅

Arch

• No changes between amd64 and arm64 ✅
• No changes between amd64 and armhf ✅
• No changes between amd64 and ppc64el ✅
• No changes between amd64 and riscv64 ✅

Flavor

• No changes between generic and aws ✅
• No changes between generic and azure ✅
• No changes between generic and gcp ✅
• No changes between generic and lowlatency ✅