LXR linux/include/uapi/drm/omap

   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#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
  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