xref: /linux/drivers/vfio/pci/pds/dirty.h (revision 06d07429858317ded2db7986113a9e0129cd599b)
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_ */
42