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      1 /*	$NetBSD: qxl_drm.h,v 1.2 2021/12/18 23:45:46 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2013 Red Hat
      5  * All Rights Reserved.
      6  *
      7  * Permission is hereby granted, free of charge, to any person obtaining a
      8  * copy of this software and associated documentation files (the "Software"),
      9  * to deal in the Software without restriction, including without limitation
     10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     11  * and/or sell copies of the Software, and to permit persons to whom the
     12  * Software is furnished to do so, subject to the following conditions:
     13  *
     14  * The above copyright notice and this permission notice (including the next
     15  * paragraph) shall be included in all copies or substantial portions of the
     16  * Software.
     17  *
     18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     20  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     21  * THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
     22  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     23  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     24  * OTHER DEALINGS IN THE SOFTWARE.
     25  */
     26 #ifndef QXL_DRM_H
     27 #define QXL_DRM_H
     28 
     29 #include "drm.h"
     30 
     31 #if defined(__cplusplus)
     32 extern "C" {
     33 #endif
     34 
     35 /* Please note that modifications to all structs defined here are
     36  * subject to backwards-compatibility constraints.
     37  *
     38  * Do not use pointers, use __u64 instead for 32 bit / 64 bit user/kernel
     39  * compatibility Keep fields aligned to their size
     40  */
     41 
     42 #define QXL_GEM_DOMAIN_CPU 0
     43 #define QXL_GEM_DOMAIN_VRAM 1
     44 #define QXL_GEM_DOMAIN_SURFACE 2
     45 
     46 #define DRM_QXL_ALLOC       0x00
     47 #define DRM_QXL_MAP         0x01
     48 #define DRM_QXL_EXECBUFFER  0x02
     49 #define DRM_QXL_UPDATE_AREA 0x03
     50 #define DRM_QXL_GETPARAM    0x04
     51 #define DRM_QXL_CLIENTCAP   0x05
     52 
     53 #define DRM_QXL_ALLOC_SURF  0x06
     54 
     55 struct drm_qxl_alloc {
     56 	__u32 size;
     57 	__u32 handle; /* 0 is an invalid handle */
     58 };
     59 
     60 struct drm_qxl_map {
     61 	__u64 offset; /* use for mmap system call */
     62 	__u32 handle;
     63 	__u32 pad;
     64 };
     65 
     66 /*
     67  * dest is the bo we are writing the relocation into
     68  * src is bo we are relocating.
     69  * *(dest_handle.base_addr + dest_offset) = physical_address(src_handle.addr +
     70  * src_offset)
     71  */
     72 #define QXL_RELOC_TYPE_BO 1
     73 #define QXL_RELOC_TYPE_SURF 2
     74 
     75 struct drm_qxl_reloc {
     76 	__u64 src_offset; /* offset into src_handle or src buffer */
     77 	__u64 dst_offset; /* offset in dest handle */
     78 	__u32 src_handle; /* dest handle to compute address from */
     79 	__u32 dst_handle; /* 0 if to command buffer */
     80 	__u32 reloc_type;
     81 	__u32 pad;
     82 };
     83 
     84 struct drm_qxl_command {
     85 	__u64		command; /* void* */
     86 	__u64		relocs; /* struct drm_qxl_reloc* */
     87 	__u32		type;
     88 	__u32		command_size;
     89 	__u32		relocs_num;
     90 	__u32                pad;
     91 };
     92 
     93 struct drm_qxl_execbuffer {
     94 	__u32		flags;		/* for future use */
     95 	__u32		commands_num;
     96 	__u64		commands;	/* struct drm_qxl_command* */
     97 };
     98 
     99 struct drm_qxl_update_area {
    100 	__u32 handle;
    101 	__u32 top;
    102 	__u32 left;
    103 	__u32 bottom;
    104 	__u32 right;
    105 	__u32 pad;
    106 };
    107 
    108 #define QXL_PARAM_NUM_SURFACES 1 /* rom->n_surfaces */
    109 #define QXL_PARAM_MAX_RELOCS 2
    110 struct drm_qxl_getparam {
    111 	__u64 param;
    112 	__u64 value;
    113 };
    114 
    115 /* these are one bit values */
    116 struct drm_qxl_clientcap {
    117 	__u32 index;
    118 	__u32 pad;
    119 };
    120 
    121 struct drm_qxl_alloc_surf {
    122 	__u32 format;
    123 	__u32 width;
    124 	__u32 height;
    125 	__s32 stride;
    126 	__u32 handle;
    127 	__u32 pad;
    128 };
    129 
    130 #define DRM_IOCTL_QXL_ALLOC \
    131 	DRM_IOWR(DRM_COMMAND_BASE + DRM_QXL_ALLOC, struct drm_qxl_alloc)
    132 
    133 #define DRM_IOCTL_QXL_MAP \
    134 	DRM_IOWR(DRM_COMMAND_BASE + DRM_QXL_MAP, struct drm_qxl_map)
    135 
    136 #define DRM_IOCTL_QXL_EXECBUFFER \
    137 	DRM_IOW(DRM_COMMAND_BASE + DRM_QXL_EXECBUFFER,\
    138 		struct drm_qxl_execbuffer)
    139 
    140 #define DRM_IOCTL_QXL_UPDATE_AREA \
    141 	DRM_IOW(DRM_COMMAND_BASE + DRM_QXL_UPDATE_AREA,\
    142 		struct drm_qxl_update_area)
    143 
    144 #define DRM_IOCTL_QXL_GETPARAM \
    145 	DRM_IOWR(DRM_COMMAND_BASE + DRM_QXL_GETPARAM,\
    146 		struct drm_qxl_getparam)
    147 
    148 #define DRM_IOCTL_QXL_CLIENTCAP \
    149 	DRM_IOW(DRM_COMMAND_BASE + DRM_QXL_CLIENTCAP,\
    150 		struct drm_qxl_clientcap)
    151 
    152 #define DRM_IOCTL_QXL_ALLOC_SURF \
    153 	DRM_IOWR(DRM_COMMAND_BASE + DRM_QXL_ALLOC_SURF,\
    154 		struct drm_qxl_alloc_surf)
    155 
    156 #if defined(__cplusplus)
    157 }
    158 #endif
    159 
    160 #endif
    161