Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
1#ifndef IO_URING_MEMMAP_H
2#define IO_URING_MEMMAP_H
3
4#define IORING_MAP_OFF_PARAM_REGION 0x20000000ULL
5#define IORING_MAP_OFF_ZCRX_REGION 0x30000000ULL
6
7struct page **io_pin_pages(unsigned long ubuf, unsigned long len, int *npages);
8
9#ifndef CONFIG_MMU
10unsigned int io_uring_nommu_mmap_capabilities(struct file *file);
11#endif
12unsigned long io_uring_get_unmapped_area(struct file *file, unsigned long addr,
13 unsigned long len, unsigned long pgoff,
14 unsigned long flags);
15int io_uring_mmap(struct file *file, struct vm_area_struct *vma);
16
17void io_free_region(struct io_ring_ctx *ctx, struct io_mapped_region *mr);
18int io_create_region(struct io_ring_ctx *ctx, struct io_mapped_region *mr,
19 struct io_uring_region_desc *reg,
20 unsigned long mmap_offset);
21
22int io_create_region_mmap_safe(struct io_ring_ctx *ctx,
23 struct io_mapped_region *mr,
24 struct io_uring_region_desc *reg,
25 unsigned long mmap_offset);
26
27static inline void *io_region_get_ptr(struct io_mapped_region *mr)
28{
29 return mr->ptr;
30}
31
32static inline bool io_region_is_set(struct io_mapped_region *mr)
33{
34 return !!mr->nr_pages;
35}
36
37#endif