drivers/vfio/pci/pds/dirty.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /* Copyright(c) 2023 Advanced Micro Devices, Inc. */
   3
   4 #ifndef _DIRTY_H_
   5 #define _DIRTY_H_
   6
   7 struct pds_vfio_region {
   8         unsigned long *host_seq;
   9         unsigned long *host_ack;
  10         u64 bmp_bytes;
  11         u64 size;
  12         u64 start;
  13         u64 page_size;
  14         struct pds_lm_sg_elem *sgl;
  15         dma_addr_t sgl_addr;
  16         u32 dev_bmp_offset_start_byte;
  17         u16 num_sge;
  18 };
  19
  20 struct pds_vfio_dirty {
  21         struct pds_vfio_region *regions;
  22         u8 num_regions;
  23         bool is_enabled;
  24 };
  25
  26 struct pds_vfio_pci_device;
  27
  28 bool pds_vfio_dirty_is_enabled(struct pds_vfio_pci_device *pds_vfio);
  29 void pds_vfio_dirty_set_enabled(struct pds_vfio_pci_device *pds_vfio);
  30 void pds_vfio_dirty_set_disabled(struct pds_vfio_pci_device *pds_vfio);
  31 void pds_vfio_dirty_disable(struct pds_vfio_pci_device *pds_vfio,
  32                             bool send_cmd);
  33
  34 int pds_vfio_dma_logging_report(struct vfio_device *vdev, unsigned long iova,
  35                                 unsigned long length,
  36                                 struct iova_bitmap *dirty);
  37 int pds_vfio_dma_logging_start(struct vfio_device *vdev,
  38                                struct rb_root_cached *ranges, u32 nnodes,
  39                                u64 *page_size);
  40 int pds_vfio_dma_logging_stop(struct vfio_device *vdev);
  41 #endif /* _DIRTY_H_ */