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authorInki Dae2012-05-04 05:13:14 -0500
committerRob Clark2012-05-12 10:04:54 -0500
commite07b650662ea0529d99741691c47856ef1034c9c (patch)
tree0f465d978c9316abcc223e3c51c042c7103ea16d /exynos/exynos_drm.h
parent86451a12ca52e88a9600ed55f56b8cacd1ac0d6d (diff)
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libdrm: add exynos drm support
this patch adds libdrm_exynos helper layer that inclues some intefaces for exynos specific gem and virtual display driver and also adds exynos module name to modtest and vbltest. Changelog v2: - fixed exynos broken ioctl. the pointer of uint64_t *edid should be removed. - removed unnecessary definitions. - added drm prime interfaces. this feature is used to share a buffer between drivers or memory managers and for this, please, refer to below links: http://www.mjmwired.net/kernel/Documentation/dma-buf-sharing.txt http://lwn.net/Articles/488664/ this patch is based on a link below: git://anongit.freedesktop.org/mesa/drm commit id: d72a44c7c4f5eea9c1e5bb0c36cb9e0224b9ca22 Reviewed-by: Rob Clark <rob@ti.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Rob Clark <rob@ti.com>
Diffstat (limited to 'exynos/exynos_drm.h')
-rw-r--r--exynos/exynos_drm.h146
1 files changed, 146 insertions, 0 deletions
diff --git a/exynos/exynos_drm.h b/exynos/exynos_drm.h
new file mode 100644
index 00000000..dc2eef36
--- /dev/null
+++ b/exynos/exynos_drm.h
@@ -0,0 +1,146 @@
1/* exynos_drm.h
2 *
3 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
4 * Authors:
5 * Inki Dae <inki.dae@samsung.com>
6 * Joonyoung Shim <jy0922.shim@samsung.com>
7 * Seung-Woo Kim <sw0312.kim@samsung.com>
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice (including the next
17 * paragraph) shall be included in all copies or substantial portions of the
18 * Software.
19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
24 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
25 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
26 * OTHER DEALINGS IN THE SOFTWARE.
27 */
28
29#ifndef _EXYNOS_DRM_H_
30#define _EXYNOS_DRM_H_
31
32#include "drm.h"
33
34/**
35 * User-desired buffer creation information structure.
36 *
37 * @size: user-desired memory allocation size.
38 * - this size value would be page-aligned internally.
39 * @flags: user request for setting memory type or cache attributes.
40 * @handle: returned a handle to created gem object.
41 * - this handle will be set by gem module of kernel side.
42 */
43struct drm_exynos_gem_create {
44 uint64_t size;
45 unsigned int flags;
46 unsigned int handle;
47};
48
49/**
50 * A structure for getting buffer offset.
51 *
52 * @handle: a pointer to gem object created.
53 * @pad: just padding to be 64-bit aligned.
54 * @offset: relatived offset value of the memory region allocated.
55 * - this value should be set by user.
56 */
57struct drm_exynos_gem_map_off {
58 unsigned int handle;
59 unsigned int pad;
60 uint64_t offset;
61};
62
63/**
64 * A structure for mapping buffer.
65 *
66 * @handle: a handle to gem object created.
67 * @size: memory size to be mapped.
68 * @mapped: having user virtual address mmaped.
69 * - this variable would be filled by exynos gem module
70 * of kernel side with user virtual address which is allocated
71 * by do_mmap().
72 */
73struct drm_exynos_gem_mmap {
74 unsigned int handle;
75 unsigned int size;
76 uint64_t mapped;
77};
78
79/**
80 * A structure to gem information.
81 *
82 * @handle: a handle to gem object created.
83 * @flags: flag value including memory type and cache attribute and
84 * this value would be set by driver.
85 * @size: size to memory region allocated by gem and this size would
86 * be set by driver.
87 */
88struct drm_exynos_gem_info {
89 unsigned int handle;
90 unsigned int flags;
91 uint64_t size;
92};
93
94/**
95 * A structure for user connection request of virtual display.
96 *
97 * @connection: indicate whether doing connetion or not by user.
98 * @extensions: if this value is 1 then the vidi driver would need additional
99 * 128bytes edid data.
100 * @edid: the edid data pointer from user side.
101 */
102struct drm_exynos_vidi_connection {
103 unsigned int connection;
104 unsigned int extensions;
105 uint64_t edid;
106};
107
108/* memory type definitions. */
109enum e_drm_exynos_gem_mem_type {
110 /* Physically Continuous memory and used as default. */
111 EXYNOS_BO_CONTIG = 0 << 0,
112 /* Physically Non-Continuous memory. */
113 EXYNOS_BO_NONCONTIG = 1 << 0,
114 /* non-cachable mapping and used as default. */
115 EXYNOS_BO_NONCACHABLE = 0 << 1,
116 /* cachable mapping. */
117 EXYNOS_BO_CACHABLE = 1 << 1,
118 /* write-combine mapping. */
119 EXYNOS_BO_WC = 1 << 2,
120 EXYNOS_BO_MASK = EXYNOS_BO_NONCONTIG | EXYNOS_BO_CACHABLE |
121 EXYNOS_BO_WC
122};
123
124#define DRM_EXYNOS_GEM_CREATE 0x00
125#define DRM_EXYNOS_GEM_MAP_OFFSET 0x01
126#define DRM_EXYNOS_GEM_MMAP 0x02
127/* Reserved 0x04 ~ 0x05 for exynos specific gem ioctl */
128#define DRM_EXYNOS_GEM_GET 0x04
129#define DRM_EXYNOS_VIDI_CONNECTION 0x07
130
131#define DRM_IOCTL_EXYNOS_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + \
132 DRM_EXYNOS_GEM_CREATE, struct drm_exynos_gem_create)
133
134#define DRM_IOCTL_EXYNOS_GEM_MAP_OFFSET DRM_IOWR(DRM_COMMAND_BASE + \
135 DRM_EXYNOS_GEM_MAP_OFFSET, struct drm_exynos_gem_map_off)
136
137#define DRM_IOCTL_EXYNOS_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE + \
138 DRM_EXYNOS_GEM_MMAP, struct drm_exynos_gem_mmap)
139
140#define DRM_IOCTL_EXYNOS_GEM_GET DRM_IOWR(DRM_COMMAND_BASE + \
141 DRM_EXYNOS_GEM_GET, struct drm_exynos_gem_info)
142
143#define DRM_IOCTL_EXYNOS_VIDI_CONNECTION DRM_IOWR(DRM_COMMAND_BASE + \
144 DRM_EXYNOS_VIDI_CONNECTION, struct drm_exynos_vidi_connection)
145
146#endif