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      1 /*
      2  * Copyright 2013 Red Hat
      3  * All Rights Reserved.
      4  *
      5  * Permission is hereby granted, free of charge, to any person obtaining a
      6  * copy of this software and associated documentation files (the "Software"),
      7  * to deal in the Software without restriction, including without limitation
      8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      9  * and/or sell copies of the Software, and to permit persons to whom the
     10  * Software is furnished to do so, subject to the following conditions:
     11  *
     12  * The above copyright notice and this permission notice (including the next
     13  * paragraph) shall be included in all copies or substantial portions of the
     14  * Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
     20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     22  * OTHER DEALINGS IN THE SOFTWARE.
     23  */
     24 #ifndef QXL_DRM_H
     25 #define QXL_DRM_H
     26 
     27 #include <stddef.h>
     28 #include "drm.h"
     29 
     30 /* Please note that modifications to all structs defined here are
     31  * subject to backwards-compatibility constraints.
     32  *
     33  * Do not use pointers, use uint64_t instead for 32 bit / 64 bit user/kernel
     34  * compatibility Keep fields aligned to their size
     35  */
     36 
     37 #define QXL_GEM_DOMAIN_CPU 0
     38 #define QXL_GEM_DOMAIN_VRAM 1
     39 #define QXL_GEM_DOMAIN_SURFACE 2
     40 
     41 #define DRM_QXL_ALLOC       0x00
     42 #define DRM_QXL_MAP         0x01
     43 #define DRM_QXL_EXECBUFFER  0x02
     44 #define DRM_QXL_UPDATE_AREA 0x03
     45 #define DRM_QXL_GETPARAM    0x04
     46 #define DRM_QXL_CLIENTCAP   0x05
     47 
     48 #define DRM_QXL_ALLOC_SURF  0x06
     49 
     50 struct drm_qxl_alloc {
     51 	uint32_t size;
     52 	uint32_t handle; /* 0 is an invalid handle */
     53 };
     54 
     55 struct drm_qxl_map {
     56 	uint64_t offset; /* use for mmap system call */
     57 	uint32_t handle;
     58 	uint32_t pad;
     59 };
     60 
     61 /*
     62  * dest is the bo we are writing the relocation into
     63  * src is bo we are relocating.
     64  * *(dest_handle.base_addr + dest_offset) = physical_address(src_handle.addr +
     65  * src_offset)
     66  */
     67 #define QXL_RELOC_TYPE_BO 1
     68 #define QXL_RELOC_TYPE_SURF 2
     69 
     70 struct drm_qxl_reloc {
     71 	uint64_t src_offset; /* offset into src_handle or src buffer */
     72 	uint64_t dst_offset; /* offset in dest handle */
     73 	uint32_t src_handle; /* dest handle to compute address from */
     74 	uint32_t dst_handle; /* 0 if to command buffer */
     75 	uint32_t reloc_type;
     76 	uint32_t pad;
     77 };
     78 
     79 struct drm_qxl_command {
     80 	uint64_t	 command; /* void* */
     81 	uint64_t	 relocs; /* struct drm_qxl_reloc* */
     82 	uint32_t		type;
     83 	uint32_t		command_size;
     84 	uint32_t		relocs_num;
     85 	uint32_t                pad;
     86 };
     87 
     88 /* XXX: call it drm_qxl_commands? */
     89 struct drm_qxl_execbuffer {
     90 	uint32_t		flags;		/* for future use */
     91 	uint32_t		commands_num;
     92 	uint64_t	 commands;	/* struct drm_qxl_command* */
     93 };
     94 
     95 struct drm_qxl_update_area {
     96 	uint32_t handle;
     97 	uint32_t top;
     98 	uint32_t left;
     99 	uint32_t bottom;
    100 	uint32_t right;
    101 	uint32_t pad;
    102 };
    103 
    104 #define QXL_PARAM_NUM_SURFACES 1 /* rom->n_surfaces */
    105 #define QXL_PARAM_MAX_RELOCS 2
    106 struct drm_qxl_getparam {
    107 	uint64_t param;
    108 	uint64_t value;
    109 };
    110 
    111 /* these are one bit values */
    112 struct drm_qxl_clientcap {
    113 	uint32_t index;
    114 	uint32_t pad;
    115 };
    116 
    117 struct drm_qxl_alloc_surf {
    118 	uint32_t format;
    119 	uint32_t width;
    120 	uint32_t height;
    121 	int32_t stride;
    122 	uint32_t handle;
    123 	uint32_t pad;
    124 };
    125 
    126 #define DRM_IOCTL_QXL_ALLOC \
    127 	DRM_IOWR(DRM_COMMAND_BASE + DRM_QXL_ALLOC, struct drm_qxl_alloc)
    128 
    129 #define DRM_IOCTL_QXL_MAP \
    130 	DRM_IOWR(DRM_COMMAND_BASE + DRM_QXL_MAP, struct drm_qxl_map)
    131 
    132 #define DRM_IOCTL_QXL_EXECBUFFER \
    133 	DRM_IOW(DRM_COMMAND_BASE + DRM_QXL_EXECBUFFER,\
    134 		struct drm_qxl_execbuffer)
    135 
    136 #define DRM_IOCTL_QXL_UPDATE_AREA \
    137 	DRM_IOW(DRM_COMMAND_BASE + DRM_QXL_UPDATE_AREA,\
    138 		struct drm_qxl_update_area)
    139 
    140 #define DRM_IOCTL_QXL_GETPARAM \
    141 	DRM_IOWR(DRM_COMMAND_BASE + DRM_QXL_GETPARAM,\
    142 		struct drm_qxl_getparam)
    143 
    144 #define DRM_IOCTL_QXL_CLIENTCAP \
    145 	DRM_IOW(DRM_COMMAND_BASE + DRM_QXL_CLIENTCAP,\
    146 		struct drm_qxl_clientcap)
    147 
    148 #define DRM_IOCTL_QXL_ALLOC_SURF \
    149 	DRM_IOWR(DRM_COMMAND_BASE + DRM_QXL_ALLOC_SURF,\
    150 		struct drm_qxl_alloc_surf)
    151 
    152 #endif
    153