1 /* $NetBSD: qxl_dumb.c,v 1.3 2021/12/18 23:45:42 riastradh Exp $ */
2
3 /*
4 * Copyright 2013 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Dave Airlie
25 * Alon Levy
26 */
27
28 #include <sys/cdefs.h>
29 __KERNEL_RCSID(0, "$NetBSD: qxl_dumb.c,v 1.3 2021/12/18 23:45:42 riastradh Exp $");
30
31 #include "qxl_drv.h"
32 #include "qxl_object.h"
33
34 /* dumb ioctls implementation */
35
qxl_mode_dumb_create(struct drm_file * file_priv,struct drm_device * dev,struct drm_mode_create_dumb * args)36 int qxl_mode_dumb_create(struct drm_file *file_priv,
37 struct drm_device *dev,
38 struct drm_mode_create_dumb *args)
39 {
40 struct qxl_device *qdev = dev->dev_private;
41 struct qxl_bo *qobj;
42 uint32_t handle;
43 int r;
44 struct qxl_surface surf;
45 uint32_t pitch, format;
46
47 pitch = args->width * ((args->bpp + 1) / 8);
48 args->size = pitch * args->height;
49 args->size = ALIGN(args->size, PAGE_SIZE);
50
51 switch (args->bpp) {
52 case 16:
53 format = SPICE_SURFACE_FMT_16_565;
54 break;
55 case 32:
56 format = SPICE_SURFACE_FMT_32_xRGB;
57 break;
58 default:
59 return -EINVAL;
60 }
61
62 surf.width = args->width;
63 surf.height = args->height;
64 surf.stride = pitch;
65 surf.format = format;
66 r = qxl_gem_object_create_with_handle(qdev, file_priv,
67 QXL_GEM_DOMAIN_SURFACE,
68 args->size, &surf, &qobj,
69 &handle);
70 if (r)
71 return r;
72 qobj->is_dumb = true;
73 args->pitch = pitch;
74 args->handle = handle;
75 return 0;
76 }
77
qxl_mode_dumb_mmap(struct drm_file * file_priv,struct drm_device * dev,uint32_t handle,uint64_t * offset_p)78 int qxl_mode_dumb_mmap(struct drm_file *file_priv,
79 struct drm_device *dev,
80 uint32_t handle, uint64_t *offset_p)
81 {
82 struct drm_gem_object *gobj;
83 struct qxl_bo *qobj;
84
85 BUG_ON(!offset_p);
86 gobj = drm_gem_object_lookup(file_priv, handle);
87 if (gobj == NULL)
88 return -ENOENT;
89 qobj = gem_to_qxl_bo(gobj);
90 *offset_p = qxl_bo_mmap_offset(qobj);
91 drm_gem_object_put_unlocked(gobj);
92 return 0;
93 }
94