1 /* SPDX-License-Identifier: MIT */
2 /*
3 * Copyright © 2021 Intel Corporation
4 */
5
6 #ifndef __I915_MM_H__
7 #define __I915_MM_H__
8
9 #include <linux/bug.h>
10 #include <linux/types.h>
11
12 struct vm_area_struct;
13 struct io_mapping;
14 struct scatterlist;
15
16 #if IS_ENABLED(CONFIG_X86)
17 int remap_io_mapping(struct vm_area_struct *vma,
18 unsigned long addr, unsigned long pfn, unsigned long size,
19 struct io_mapping *iomap);
20 #else
21 static inline
remap_io_mapping(struct vm_area_struct * vma,unsigned long addr,unsigned long pfn,unsigned long size,struct io_mapping * iomap)22 int remap_io_mapping(struct vm_area_struct *vma,
23 unsigned long addr, unsigned long pfn, unsigned long size,
24 struct io_mapping *iomap)
25 {
26 WARN_ONCE(1, "Architecture has no drm_cache.c support\n");
27 return 0;
28 }
29 #endif
30
31 int remap_io_sg(struct vm_area_struct *vma,
32 unsigned long addr, unsigned long size,
33 struct scatterlist *sgl, resource_size_t iobase);
34
35 #endif /* __I915_MM_H__ */
36