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      1 /*	$NetBSD: r128_drm.h,v 1.2 2021/12/18 23:45:46 riastradh Exp $	*/
      2 
      3 /* r128_drm.h -- Public header for the r128 driver -*- linux-c -*-
      4  * Created: Wed Apr  5 19:24:19 2000 by kevin (at) precisioninsight.com
      5  */
      6 /*
      7  * Copyright 2000 Precision Insight, Inc., Cedar Park, Texas.
      8  * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
      9  * All rights reserved.
     10  *
     11  * Permission is hereby granted, free of charge, to any person obtaining a
     12  * copy of this software and associated documentation files (the "Software"),
     13  * to deal in the Software without restriction, including without limitation
     14  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     15  * and/or sell copies of the Software, and to permit persons to whom the
     16  * Software is furnished to do so, subject to the following conditions:
     17  *
     18  * The above copyright notice and this permission notice (including the next
     19  * paragraph) shall be included in all copies or substantial portions of the
     20  * Software.
     21  *
     22  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     23  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     24  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     25  * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
     26  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     27  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     28  * DEALINGS IN THE SOFTWARE.
     29  *
     30  * Authors:
     31  *    Gareth Hughes <gareth (at) valinux.com>
     32  *    Kevin E. Martin <martin (at) valinux.com>
     33  */
     34 
     35 #ifndef __R128_DRM_H__
     36 #define __R128_DRM_H__
     37 
     38 #include "drm.h"
     39 
     40 #if defined(__cplusplus)
     41 extern "C" {
     42 #endif
     43 
     44 /* WARNING: If you change any of these defines, make sure to change the
     45  * defines in the X server file (r128_sarea.h)
     46  */
     47 #ifndef __R128_SAREA_DEFINES__
     48 #define __R128_SAREA_DEFINES__
     49 
     50 /* What needs to be changed for the current vertex buffer?
     51  */
     52 #define R128_UPLOAD_CONTEXT		0x001
     53 #define R128_UPLOAD_SETUP		0x002
     54 #define R128_UPLOAD_TEX0		0x004
     55 #define R128_UPLOAD_TEX1		0x008
     56 #define R128_UPLOAD_TEX0IMAGES		0x010
     57 #define R128_UPLOAD_TEX1IMAGES		0x020
     58 #define R128_UPLOAD_CORE		0x040
     59 #define R128_UPLOAD_MASKS		0x080
     60 #define R128_UPLOAD_WINDOW		0x100
     61 #define R128_UPLOAD_CLIPRECTS		0x200	/* handled client-side */
     62 #define R128_REQUIRE_QUIESCENCE		0x400
     63 #define R128_UPLOAD_ALL			0x7ff
     64 
     65 #define R128_FRONT			0x1
     66 #define R128_BACK			0x2
     67 #define R128_DEPTH			0x4
     68 
     69 /* Primitive types
     70  */
     71 #define R128_POINTS			0x1
     72 #define R128_LINES			0x2
     73 #define R128_LINE_STRIP			0x3
     74 #define R128_TRIANGLES			0x4
     75 #define R128_TRIANGLE_FAN		0x5
     76 #define R128_TRIANGLE_STRIP		0x6
     77 
     78 /* Vertex/indirect buffer size
     79  */
     80 #define R128_BUFFER_SIZE		16384
     81 
     82 /* Byte offsets for indirect buffer data
     83  */
     84 #define R128_INDEX_PRIM_OFFSET		20
     85 #define R128_HOSTDATA_BLIT_OFFSET	32
     86 
     87 /* Keep these small for testing.
     88  */
     89 #define R128_NR_SAREA_CLIPRECTS		12
     90 
     91 /* There are 2 heaps (local/AGP).  Each region within a heap is a
     92  *  minimum of 64k, and there are at most 64 of them per heap.
     93  */
     94 #define R128_LOCAL_TEX_HEAP		0
     95 #define R128_AGP_TEX_HEAP		1
     96 #define R128_NR_TEX_HEAPS		2
     97 #define R128_NR_TEX_REGIONS		64
     98 #define R128_LOG_TEX_GRANULARITY	16
     99 
    100 #define R128_NR_CONTEXT_REGS		12
    101 
    102 #define R128_MAX_TEXTURE_LEVELS		11
    103 #define R128_MAX_TEXTURE_UNITS		2
    104 
    105 #endif				/* __R128_SAREA_DEFINES__ */
    106 
    107 typedef struct {
    108 	/* Context state - can be written in one large chunk */
    109 	unsigned int dst_pitch_offset_c;
    110 	unsigned int dp_gui_master_cntl_c;
    111 	unsigned int sc_top_left_c;
    112 	unsigned int sc_bottom_right_c;
    113 	unsigned int z_offset_c;
    114 	unsigned int z_pitch_c;
    115 	unsigned int z_sten_cntl_c;
    116 	unsigned int tex_cntl_c;
    117 	unsigned int misc_3d_state_cntl_reg;
    118 	unsigned int texture_clr_cmp_clr_c;
    119 	unsigned int texture_clr_cmp_msk_c;
    120 	unsigned int fog_color_c;
    121 
    122 	/* Texture state */
    123 	unsigned int tex_size_pitch_c;
    124 	unsigned int constant_color_c;
    125 
    126 	/* Setup state */
    127 	unsigned int pm4_vc_fpu_setup;
    128 	unsigned int setup_cntl;
    129 
    130 	/* Mask state */
    131 	unsigned int dp_write_mask;
    132 	unsigned int sten_ref_mask_c;
    133 	unsigned int plane_3d_mask_c;
    134 
    135 	/* Window state */
    136 	unsigned int window_xy_offset;
    137 
    138 	/* Core state */
    139 	unsigned int scale_3d_cntl;
    140 } drm_r128_context_regs_t;
    141 
    142 /* Setup registers for each texture unit
    143  */
    144 typedef struct {
    145 	unsigned int tex_cntl;
    146 	unsigned int tex_combine_cntl;
    147 	unsigned int tex_size_pitch;
    148 	unsigned int tex_offset[R128_MAX_TEXTURE_LEVELS];
    149 	unsigned int tex_border_color;
    150 } drm_r128_texture_regs_t;
    151 
    152 typedef struct drm_r128_sarea {
    153 	/* The channel for communication of state information to the kernel
    154 	 * on firing a vertex buffer.
    155 	 */
    156 	drm_r128_context_regs_t context_state;
    157 	drm_r128_texture_regs_t tex_state[R128_MAX_TEXTURE_UNITS];
    158 	unsigned int dirty;
    159 	unsigned int vertsize;
    160 	unsigned int vc_format;
    161 
    162 	/* The current cliprects, or a subset thereof.
    163 	 */
    164 	struct drm_clip_rect boxes[R128_NR_SAREA_CLIPRECTS];
    165 	unsigned int nbox;
    166 
    167 	/* Counters for client-side throttling of rendering clients.
    168 	 */
    169 	unsigned int last_frame;
    170 	unsigned int last_dispatch;
    171 
    172 	struct drm_tex_region tex_list[R128_NR_TEX_HEAPS][R128_NR_TEX_REGIONS + 1];
    173 	unsigned int tex_age[R128_NR_TEX_HEAPS];
    174 	int ctx_owner;
    175 	int pfAllowPageFlip;	/* number of 3d windows (0,1,2 or more) */
    176 	int pfCurrentPage;	/* which buffer is being displayed? */
    177 } drm_r128_sarea_t;
    178 
    179 /* WARNING: If you change any of these defines, make sure to change the
    180  * defines in the Xserver file (xf86drmR128.h)
    181  */
    182 
    183 /* Rage 128 specific ioctls
    184  * The device specific ioctl range is 0x40 to 0x79.
    185  */
    186 #define DRM_R128_INIT       0x00
    187 #define DRM_R128_CCE_START  0x01
    188 #define DRM_R128_CCE_STOP   0x02
    189 #define DRM_R128_CCE_RESET  0x03
    190 #define DRM_R128_CCE_IDLE   0x04
    191 /* 0x05 not used */
    192 #define DRM_R128_RESET      0x06
    193 #define DRM_R128_SWAP       0x07
    194 #define DRM_R128_CLEAR      0x08
    195 #define DRM_R128_VERTEX     0x09
    196 #define DRM_R128_INDICES    0x0a
    197 #define DRM_R128_BLIT       0x0b
    198 #define DRM_R128_DEPTH      0x0c
    199 #define DRM_R128_STIPPLE    0x0d
    200 /* 0x0e not used */
    201 #define DRM_R128_INDIRECT   0x0f
    202 #define DRM_R128_FULLSCREEN 0x10
    203 #define DRM_R128_CLEAR2     0x11
    204 #define DRM_R128_GETPARAM   0x12
    205 #define DRM_R128_FLIP       0x13
    206 
    207 #define DRM_IOCTL_R128_INIT       DRM_IOW( DRM_COMMAND_BASE + DRM_R128_INIT, drm_r128_init_t)
    208 #define DRM_IOCTL_R128_CCE_START  DRM_IO(  DRM_COMMAND_BASE + DRM_R128_CCE_START)
    209 #define DRM_IOCTL_R128_CCE_STOP   DRM_IOW( DRM_COMMAND_BASE + DRM_R128_CCE_STOP, drm_r128_cce_stop_t)
    210 #define DRM_IOCTL_R128_CCE_RESET  DRM_IO(  DRM_COMMAND_BASE + DRM_R128_CCE_RESET)
    211 #define DRM_IOCTL_R128_CCE_IDLE   DRM_IO(  DRM_COMMAND_BASE + DRM_R128_CCE_IDLE)
    212 /* 0x05 not used */
    213 #define DRM_IOCTL_R128_RESET      DRM_IO(  DRM_COMMAND_BASE + DRM_R128_RESET)
    214 #define DRM_IOCTL_R128_SWAP       DRM_IO(  DRM_COMMAND_BASE + DRM_R128_SWAP)
    215 #define DRM_IOCTL_R128_CLEAR      DRM_IOW( DRM_COMMAND_BASE + DRM_R128_CLEAR, drm_r128_clear_t)
    216 #define DRM_IOCTL_R128_VERTEX     DRM_IOW( DRM_COMMAND_BASE + DRM_R128_VERTEX, drm_r128_vertex_t)
    217 #define DRM_IOCTL_R128_INDICES    DRM_IOW( DRM_COMMAND_BASE + DRM_R128_INDICES, drm_r128_indices_t)
    218 #define DRM_IOCTL_R128_BLIT       DRM_IOW( DRM_COMMAND_BASE + DRM_R128_BLIT, drm_r128_blit_t)
    219 #define DRM_IOCTL_R128_DEPTH      DRM_IOW( DRM_COMMAND_BASE + DRM_R128_DEPTH, drm_r128_depth_t)
    220 #define DRM_IOCTL_R128_STIPPLE    DRM_IOW( DRM_COMMAND_BASE + DRM_R128_STIPPLE, drm_r128_stipple_t)
    221 /* 0x0e not used */
    222 #define DRM_IOCTL_R128_INDIRECT   DRM_IOWR(DRM_COMMAND_BASE + DRM_R128_INDIRECT, drm_r128_indirect_t)
    223 #define DRM_IOCTL_R128_FULLSCREEN DRM_IOW( DRM_COMMAND_BASE + DRM_R128_FULLSCREEN, drm_r128_fullscreen_t)
    224 #define DRM_IOCTL_R128_CLEAR2     DRM_IOW( DRM_COMMAND_BASE + DRM_R128_CLEAR2, drm_r128_clear2_t)
    225 #define DRM_IOCTL_R128_GETPARAM   DRM_IOWR( DRM_COMMAND_BASE + DRM_R128_GETPARAM, drm_r128_getparam_t)
    226 #define DRM_IOCTL_R128_FLIP       DRM_IO(  DRM_COMMAND_BASE + DRM_R128_FLIP)
    227 
    228 typedef struct drm_r128_init {
    229 	enum {
    230 		R128_INIT_CCE = 0x01,
    231 		R128_CLEANUP_CCE = 0x02
    232 	} func;
    233 	unsigned long sarea_priv_offset;
    234 	int is_pci;
    235 	int cce_mode;
    236 	int cce_secure;
    237 	int ring_size;
    238 	int usec_timeout;
    239 
    240 	unsigned int fb_bpp;
    241 	unsigned int front_offset, front_pitch;
    242 	unsigned int back_offset, back_pitch;
    243 	unsigned int depth_bpp;
    244 	unsigned int depth_offset, depth_pitch;
    245 	unsigned int span_offset;
    246 
    247 	unsigned long fb_offset;
    248 	unsigned long mmio_offset;
    249 	unsigned long ring_offset;
    250 	unsigned long ring_rptr_offset;
    251 	unsigned long buffers_offset;
    252 	unsigned long agp_textures_offset;
    253 } drm_r128_init_t;
    254 
    255 typedef struct drm_r128_cce_stop {
    256 	int flush;
    257 	int idle;
    258 } drm_r128_cce_stop_t;
    259 
    260 typedef struct drm_r128_clear {
    261 	unsigned int flags;
    262 	unsigned int clear_color;
    263 	unsigned int clear_depth;
    264 	unsigned int color_mask;
    265 	unsigned int depth_mask;
    266 } drm_r128_clear_t;
    267 
    268 typedef struct drm_r128_vertex {
    269 	int prim;
    270 	int idx;		/* Index of vertex buffer */
    271 	int count;		/* Number of vertices in buffer */
    272 	int discard;		/* Client finished with buffer? */
    273 } drm_r128_vertex_t;
    274 
    275 typedef struct drm_r128_indices {
    276 	int prim;
    277 	int idx;
    278 	int start;
    279 	int end;
    280 	int discard;		/* Client finished with buffer? */
    281 } drm_r128_indices_t;
    282 
    283 typedef struct drm_r128_blit {
    284 	int idx;
    285 	int pitch;
    286 	int offset;
    287 	int format;
    288 	unsigned short x, y;
    289 	unsigned short width, height;
    290 } drm_r128_blit_t;
    291 
    292 typedef struct drm_r128_depth {
    293 	enum {
    294 		R128_WRITE_SPAN = 0x01,
    295 		R128_WRITE_PIXELS = 0x02,
    296 		R128_READ_SPAN = 0x03,
    297 		R128_READ_PIXELS = 0x04
    298 	} func;
    299 	int n;
    300 	int __user *x;
    301 	int __user *y;
    302 	unsigned int __user *buffer;
    303 	unsigned char __user *mask;
    304 } drm_r128_depth_t;
    305 
    306 typedef struct drm_r128_stipple {
    307 	unsigned int __user *mask;
    308 } drm_r128_stipple_t;
    309 
    310 typedef struct drm_r128_indirect {
    311 	int idx;
    312 	int start;
    313 	int end;
    314 	int discard;
    315 } drm_r128_indirect_t;
    316 
    317 typedef struct drm_r128_fullscreen {
    318 	enum {
    319 		R128_INIT_FULLSCREEN = 0x01,
    320 		R128_CLEANUP_FULLSCREEN = 0x02
    321 	} func;
    322 } drm_r128_fullscreen_t;
    323 
    324 /* 2.3: An ioctl to get parameters that aren't available to the 3d
    325  * client any other way.
    326  */
    327 #define R128_PARAM_IRQ_NR            1
    328 
    329 typedef struct drm_r128_getparam {
    330 	int param;
    331 	void __user *value;
    332 } drm_r128_getparam_t;
    333 
    334 #if defined(__cplusplus)
    335 }
    336 #endif
    337 
    338 #endif
    339