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TOMOYO Linux Cross Reference
Linux/include/uapi/drm/omap_drm.h

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  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)
 27 extern "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 
 36 struct drm_omap_param {
 37         __u64 param;                    /* in */
 38         __u64 value;                    /* in (set_param), out (get_param) */
 39 };
 40 
 41 #define OMAP_BO_SCANOUT         0x00000001      /* scanout capable (phys contiguous) */
 42 #define OMAP_BO_CACHE_MASK      0x00000006      /* cache type mask, see cache modes */
 43 #define OMAP_BO_TILED_MASK      0x00000f00      /* tiled mapping mask, see tiled modes */
 44 
 45 /* cache modes */
 46 #define OMAP_BO_CACHED          0x00000000      /* default */
 47 #define OMAP_BO_WC              0x00000002      /* write-combine */
 48 #define OMAP_BO_UNCACHED        0x00000004      /* strongly-ordered (uncached) */
 49 
 50 /* tiled modes */
 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           (OMAP_BO_TILED_8 | OMAP_BO_TILED_16 | OMAP_BO_TILED_32)
 55 
 56 union 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 
 64 struct 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: */
 72 enum omap_gem_op {
 73         OMAP_GEM_READ = 0x01,
 74         OMAP_GEM_WRITE = 0x02,
 75 };
 76 
 77 struct drm_omap_gem_cpu_prep {
 78         __u32 handle;                   /* buffer handle (in) */
 79         __u32 op;                       /* mask of omap_gem_op (in) */
 80 };
 81 
 82 struct 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 
 93 struct 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 

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