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cd5351f4 RC |
1 | /* |
2 | * include/drm/omap_drm.h | |
3 | * | |
4 | * Copyright (C) 2011 Texas Instruments | |
5 | * Author: Rob Clark <rob@ti.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License version 2 as published by | |
9 | * the Free Software Foundation. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
14 | * more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License along with | |
17 | * this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #ifndef __OMAP_DRM_H__ | |
21 | #define __OMAP_DRM_H__ | |
22 | ||
71e8831f | 23 | #include <drm/drm.h> |
cd5351f4 RC |
24 | |
25 | /* Please note that modifications to all structs defined here are | |
26 | * subject to backwards-compatibility constraints. | |
27 | */ | |
28 | ||
29 | #define OMAP_PARAM_CHIPSET_ID 1 /* ie. 0x3430, 0x4430, etc */ | |
30 | ||
31 | struct drm_omap_param { | |
32 | uint64_t param; /* in */ | |
33 | uint64_t value; /* in (set_param), out (get_param) */ | |
34 | }; | |
35 | ||
36 | #define OMAP_BO_SCANOUT 0x00000001 /* scanout capable (phys contiguous) */ | |
37 | #define OMAP_BO_CACHE_MASK 0x00000006 /* cache type mask, see cache modes */ | |
38 | #define OMAP_BO_TILED_MASK 0x00000f00 /* tiled mapping mask, see tiled modes */ | |
39 | ||
40 | /* cache modes */ | |
41 | #define OMAP_BO_CACHED 0x00000000 /* default */ | |
42 | #define OMAP_BO_WC 0x00000002 /* write-combine */ | |
43 | #define OMAP_BO_UNCACHED 0x00000004 /* strongly-ordered (uncached) */ | |
44 | ||
45 | /* tiled modes */ | |
46 | #define OMAP_BO_TILED_8 0x00000100 | |
47 | #define OMAP_BO_TILED_16 0x00000200 | |
48 | #define OMAP_BO_TILED_32 0x00000300 | |
49 | #define OMAP_BO_TILED (OMAP_BO_TILED_8 | OMAP_BO_TILED_16 | OMAP_BO_TILED_32) | |
50 | ||
51 | union omap_gem_size { | |
52 | uint32_t bytes; /* (for non-tiled formats) */ | |
53 | struct { | |
54 | uint16_t width; | |
55 | uint16_t height; | |
56 | } tiled; /* (for tiled formats) */ | |
57 | }; | |
58 | ||
59 | struct drm_omap_gem_new { | |
60 | union omap_gem_size size; /* in */ | |
61 | uint32_t flags; /* in */ | |
62 | uint32_t handle; /* out */ | |
63 | uint32_t __pad; | |
64 | }; | |
65 | ||
66 | /* mask of operations: */ | |
67 | enum omap_gem_op { | |
68 | OMAP_GEM_READ = 0x01, | |
69 | OMAP_GEM_WRITE = 0x02, | |
70 | }; | |
71 | ||
72 | struct drm_omap_gem_cpu_prep { | |
73 | uint32_t handle; /* buffer handle (in) */ | |
74 | uint32_t op; /* mask of omap_gem_op (in) */ | |
75 | }; | |
76 | ||
77 | struct drm_omap_gem_cpu_fini { | |
78 | uint32_t handle; /* buffer handle (in) */ | |
79 | uint32_t op; /* mask of omap_gem_op (in) */ | |
80 | /* TODO maybe here we pass down info about what regions are touched | |
81 | * by sw so we can be clever about cache ops? For now a placeholder, | |
82 | * set to zero and we just do full buffer flush.. | |
83 | */ | |
84 | uint32_t nregions; | |
85 | uint32_t __pad; | |
86 | }; | |
87 | ||
88 | struct drm_omap_gem_info { | |
89 | uint32_t handle; /* buffer handle (in) */ | |
90 | uint32_t pad; | |
91 | uint64_t offset; /* mmap offset (out) */ | |
92 | /* note: in case of tiled buffers, the user virtual size can be | |
93 | * different from the physical size (ie. how many pages are needed | |
94 | * to back the object) which is returned in DRM_IOCTL_GEM_OPEN.. | |
95 | * This size here is the one that should be used if you want to | |
96 | * mmap() the buffer: | |
97 | */ | |
98 | uint32_t size; /* virtual size for mmap'ing (out) */ | |
99 | uint32_t __pad; | |
100 | }; | |
101 | ||
102 | #define DRM_OMAP_GET_PARAM 0x00 | |
103 | #define DRM_OMAP_SET_PARAM 0x01 | |
104 | /* placeholder for plugin-api | |
105 | #define DRM_OMAP_GET_BASE 0x02 | |
106 | */ | |
107 | #define DRM_OMAP_GEM_NEW 0x03 | |
108 | #define DRM_OMAP_GEM_CPU_PREP 0x04 | |
109 | #define DRM_OMAP_GEM_CPU_FINI 0x05 | |
110 | #define DRM_OMAP_GEM_INFO 0x06 | |
111 | #define DRM_OMAP_NUM_IOCTLS 0x07 | |
112 | ||
113 | #define DRM_IOCTL_OMAP_GET_PARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GET_PARAM, struct drm_omap_param) | |
114 | #define DRM_IOCTL_OMAP_SET_PARAM DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_SET_PARAM, struct drm_omap_param) | |
115 | /* placeholder for plugin-api | |
116 | #define DRM_IOCTL_OMAP_GET_BASE DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GET_BASE, struct drm_omap_get_base) | |
117 | */ | |
118 | #define DRM_IOCTL_OMAP_GEM_NEW DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GEM_NEW, struct drm_omap_gem_new) | |
119 | #define DRM_IOCTL_OMAP_GEM_CPU_PREP DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_GEM_CPU_PREP, struct drm_omap_gem_cpu_prep) | |
120 | #define DRM_IOCTL_OMAP_GEM_CPU_FINI DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_GEM_CPU_FINI, struct drm_omap_gem_cpu_fini) | |
121 | #define DRM_IOCTL_OMAP_GEM_INFO DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GEM_INFO, struct drm_omap_gem_info) | |
122 | ||
123 | #endif /* __OMAP_DRM_H__ */ |