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_bmp_info {
   8         unsigned long *bmp;
   9         u32 bmp_bytes;
  10         struct pds_lm_sg_elem *sgl;
  11         dma_addr_t sgl_addr;
  12         u16 num_sge;
  13 };
  14
  15 struct pds_vfio_dirty {
  16         struct pds_vfio_bmp_info host_seq;
  17         struct pds_vfio_bmp_info host_ack;
  18         u64 region_size;
  19         u64 region_start;
  20         u64 region_page_size;
  21         bool is_enabled;
  22 };
  23
  24 struct pds_vfio_pci_device;
  25
  26 bool pds_vfio_dirty_is_enabled(struct pds_vfio_pci_device *pds_vfio);
  27 void pds_vfio_dirty_set_enabled(struct pds_vfio_pci_device *pds_vfio);
  28 void pds_vfio_dirty_set_disabled(struct pds_vfio_pci_device *pds_vfio);
  29 void pds_vfio_dirty_disable(struct pds_vfio_pci_device *pds_vfio,
  30                             bool send_cmd);
  31
  32 int pds_vfio_dma_logging_report(struct vfio_device *vdev, unsigned long iova,
  33                                 unsigned long length,
  34                                 struct iova_bitmap *dirty);
  35 int pds_vfio_dma_logging_start(struct vfio_device *vdev,
  36                                struct rb_root_cached *ranges, u32 nnodes,
  37                                u64 *page_size);
  38 int pds_vfio_dma_logging_stop(struct vfio_device *vdev);
  39 #endif /* _DIRTY_H_ */