1 /* $NetBSD: igt_mmap.c,v 1.2 2021/12/18 23:45:31 riastradh Exp $ */
2
3 /*
4 * SPDX-License-Identifier: MIT
5 *
6 * Copyright © 2019 Intel Corporation
7 */
8
9 #include <sys/cdefs.h>
10 __KERNEL_RCSID(0, "$NetBSD: igt_mmap.c,v 1.2 2021/12/18 23:45:31 riastradh Exp $");
11
12 #include <drm/drm_file.h>
13
14 #include "i915_drv.h"
15 #include "igt_mmap.h"
16
igt_mmap_node(struct drm_i915_private * i915,struct drm_vma_offset_node * node,unsigned long addr,unsigned long prot,unsigned long flags)17 unsigned long igt_mmap_node(struct drm_i915_private *i915,
18 struct drm_vma_offset_node *node,
19 unsigned long addr,
20 unsigned long prot,
21 unsigned long flags)
22 {
23 struct file *file;
24 int err;
25
26 /* Pretend to open("/dev/dri/card0") */
27 file = mock_drm_getfile(i915->drm.primary, O_RDWR);
28 if (IS_ERR(file))
29 return PTR_ERR(file);
30
31 err = drm_vma_node_allow(node, file->private_data);
32 if (err) {
33 addr = err;
34 goto out_file;
35 }
36
37 addr = vm_mmap(file, addr, drm_vma_node_size(node) << PAGE_SHIFT,
38 prot, flags, drm_vma_node_offset_addr(node));
39
40 drm_vma_node_revoke(node, file->private_data);
41 out_file:
42 fput(file);
43 return addr;
44 }
45