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