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