[go: nahoru, domu]
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
31int 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 = dev->dev_private;
36	struct qxl_bo *qobj;
37	uint32_t handle;
38	int r;
39	struct qxl_surface surf;
40	uint32_t pitch, format;
41	pitch = args->width * ((args->bpp + 1) / 8);
42	args->size = pitch * args->height;
43	args->size = ALIGN(args->size, PAGE_SIZE);
44
45	switch (args->bpp) {
46	case 16:
47		format = SPICE_SURFACE_FMT_16_565;
48		break;
49	case 32:
50		format = SPICE_SURFACE_FMT_32_xRGB;
51		break;
52	default:
53		return -EINVAL;
54	}
55
56	surf.width = args->width;
57	surf.height = args->height;
58	surf.stride = pitch;
59	surf.format = format;
60	r = qxl_gem_object_create_with_handle(qdev, file_priv,
61					      QXL_GEM_DOMAIN_VRAM,
62					      args->size, &surf, &qobj,
63					      &handle);
64	if (r)
65		return r;
66	args->pitch = pitch;
67	args->handle = handle;
68	return 0;
69}
70
71int qxl_mode_dumb_mmap(struct drm_file *file_priv,
72		       struct drm_device *dev,
73		       uint32_t handle, uint64_t *offset_p)
74{
75	struct drm_gem_object *gobj;
76	struct qxl_bo *qobj;
77
78	BUG_ON(!offset_p);
79	gobj = drm_gem_object_lookup(dev, file_priv, handle);
80	if (gobj == NULL)
81		return -ENOENT;
82	qobj = gem_to_qxl_bo(gobj);
83	*offset_p = qxl_bo_mmap_offset(qobj);
84	drm_gem_object_unreference_unlocked(gobj);
85	return 0;
86}
87