1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2/*
3 * include/uapi/drm/omap_drm.h
4 *
5 * Copyright (C) 2011 Texas Instruments
6 * Author: Rob Clark <rob@ti.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License version 2 as published by
10 * the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
15 * more details.
16 *
17 * You should have received a copy of the GNU General Public License along with
18 * this program.  If not, see <http://www.gnu.org/licenses/>.
19 */
20
21#ifndef __OMAP_DRM_H__
22#define __OMAP_DRM_H__
23
24#include "drm.h"
25
26#if defined(__cplusplus)
27extern "C" {
28#endif
29
30/* Please note that modifications to all structs defined here are
31 * subject to backwards-compatibility constraints.
32 */
33
34#define OMAP_PARAM_CHIPSET_ID	1	/* ie. 0x3430, 0x4430, etc */
35
36struct drm_omap_param {
37	__u64 param;			/* in */
38	__u64 value;			/* in (set_param), out (get_param) */
39};
40
41/* Scanout buffer, consumable by DSS */
42#define OMAP_BO_SCANOUT		0x00000001
43
44/* Buffer CPU caching mode: cached, write-combining or uncached. */
45#define OMAP_BO_CACHED		0x00000000
46#define OMAP_BO_WC		0x00000002
47#define OMAP_BO_UNCACHED	0x00000004
48#define OMAP_BO_CACHE_MASK	0x00000006
49
50/* Use TILER for the buffer. The TILER container unit can be 8, 16 or 32 bits. */
51#define OMAP_BO_TILED_8		0x00000100
52#define OMAP_BO_TILED_16	0x00000200
53#define OMAP_BO_TILED_32	0x00000300
54#define OMAP_BO_TILED_MASK	0x00000f00
55
56union omap_gem_size {
57	__u32 bytes;		/* (for non-tiled formats) */
58	struct {
59		__u16 width;
60		__u16 height;
61	} tiled;		/* (for tiled formats) */
62};
63
64struct drm_omap_gem_new {
65	union omap_gem_size size;	/* in */
66	__u32 flags;			/* in */
67	__u32 handle;			/* out */
68	__u32 __pad;
69};
70
71/* mask of operations: */
72enum omap_gem_op {
73	OMAP_GEM_READ = 0x01,
74	OMAP_GEM_WRITE = 0x02,
75};
76
77struct drm_omap_gem_cpu_prep {
78	__u32 handle;			/* buffer handle (in) */
79	__u32 op;			/* mask of omap_gem_op (in) */
80};
81
82struct drm_omap_gem_cpu_fini {
83	__u32 handle;			/* buffer handle (in) */
84	__u32 op;			/* mask of omap_gem_op (in) */
85	/* TODO maybe here we pass down info about what regions are touched
86	 * by sw so we can be clever about cache ops?  For now a placeholder,
87	 * set to zero and we just do full buffer flush..
88	 */
89	__u32 nregions;
90	__u32 __pad;
91};
92
93struct drm_omap_gem_info {
94	__u32 handle;			/* buffer handle (in) */
95	__u32 pad;
96	__u64 offset;			/* mmap offset (out) */
97	/* note: in case of tiled buffers, the user virtual size can be
98	 * different from the physical size (ie. how many pages are needed
99	 * to back the object) which is returned in DRM_IOCTL_GEM_OPEN..
100	 * This size here is the one that should be used if you want to
101	 * mmap() the buffer:
102	 */
103	__u32 size;			/* virtual size for mmap'ing (out) */
104	__u32 __pad;
105};
106
107#define DRM_OMAP_GET_PARAM		0x00
108#define DRM_OMAP_SET_PARAM		0x01
109#define DRM_OMAP_GEM_NEW		0x03
110#define DRM_OMAP_GEM_CPU_PREP		0x04	/* Deprecated, to be removed */
111#define DRM_OMAP_GEM_CPU_FINI		0x05	/* Deprecated, to be removed */
112#define DRM_OMAP_GEM_INFO		0x06
113#define DRM_OMAP_NUM_IOCTLS		0x07
114
115#define DRM_IOCTL_OMAP_GET_PARAM	DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GET_PARAM, struct drm_omap_param)
116#define DRM_IOCTL_OMAP_SET_PARAM	DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_SET_PARAM, struct drm_omap_param)
117#define DRM_IOCTL_OMAP_GEM_NEW		DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GEM_NEW, struct drm_omap_gem_new)
118#define DRM_IOCTL_OMAP_GEM_CPU_PREP	DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_GEM_CPU_PREP, struct drm_omap_gem_cpu_prep)
119#define DRM_IOCTL_OMAP_GEM_CPU_FINI	DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_GEM_CPU_FINI, struct drm_omap_gem_cpu_fini)
120#define DRM_IOCTL_OMAP_GEM_INFO		DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GEM_INFO, struct drm_omap_gem_info)
121
122#if defined(__cplusplus)
123}
124#endif
125
126#endif /* __OMAP_DRM_H__ */
127