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r300_reg.h revision 1.1.1.1.2.2
      1 /*
      2  * Copyright 2005 Nicolai Haehnle et al.
      3  * Copyright 2008 Advanced Micro Devices, Inc.
      4  * Copyright 2009 Jerome Glisse.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be included in
     14  * all copies or substantial portions of the 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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  * Authors: Nicolai Haehnle
     25  *          Jerome Glisse
     26  */
     27 #ifndef _R300_REG_H_
     28 #define _R300_REG_H_
     29 
     30 #define R300_SURF_TILE_MACRO (1<<16)
     31 #define R300_SURF_TILE_MICRO (2<<16)
     32 #define R300_SURF_TILE_BOTH (3<<16)
     33 
     34 
     35 #define R300_MC_INIT_MISC_LAT_TIMER	0x180
     36 #	define R300_MC_MISC__MC_CPR_INIT_LAT_SHIFT	0
     37 #	define R300_MC_MISC__MC_VF_INIT_LAT_SHIFT	4
     38 #	define R300_MC_MISC__MC_DISP0R_INIT_LAT_SHIFT	8
     39 #	define R300_MC_MISC__MC_DISP1R_INIT_LAT_SHIFT	12
     40 #	define R300_MC_MISC__MC_FIXED_INIT_LAT_SHIFT	16
     41 #	define R300_MC_MISC__MC_E2R_INIT_LAT_SHIFT	20
     42 #	define R300_MC_MISC__MC_SAME_PAGE_PRIO_SHIFT	24
     43 #	define R300_MC_MISC__MC_GLOBW_INIT_LAT_SHIFT	28
     44 
     45 #define R300_MC_INIT_GFX_LAT_TIMER	0x154
     46 #	define R300_MC_MISC__MC_G3D0R_INIT_LAT_SHIFT	0
     47 #	define R300_MC_MISC__MC_G3D1R_INIT_LAT_SHIFT	4
     48 #	define R300_MC_MISC__MC_G3D2R_INIT_LAT_SHIFT	8
     49 #	define R300_MC_MISC__MC_G3D3R_INIT_LAT_SHIFT	12
     50 #	define R300_MC_MISC__MC_TX0R_INIT_LAT_SHIFT	16
     51 #	define R300_MC_MISC__MC_TX1R_INIT_LAT_SHIFT	20
     52 #	define R300_MC_MISC__MC_GLOBR_INIT_LAT_SHIFT	24
     53 #	define R300_MC_MISC__MC_GLOBW_FULL_LAT_SHIFT	28
     54 
     55 /*
     56  * This file contains registers and constants for the R300. They have been
     57  * found mostly by examining command buffers captured using glxtest, as well
     58  * as by extrapolating some known registers and constants from the R200.
     59  * I am fairly certain that they are correct unless stated otherwise
     60  * in comments.
     61  */
     62 
     63 #define R300_SE_VPORT_XSCALE                0x1D98
     64 #define R300_SE_VPORT_XOFFSET               0x1D9C
     65 #define R300_SE_VPORT_YSCALE                0x1DA0
     66 #define R300_SE_VPORT_YOFFSET               0x1DA4
     67 #define R300_SE_VPORT_ZSCALE                0x1DA8
     68 #define R300_SE_VPORT_ZOFFSET               0x1DAC
     69 
     70 
     71 /*
     72  * Vertex Array Processing (VAP) Control
     73  * Stolen from r200 code from Christoph Brill (It's a guess!)
     74  */
     75 #define R300_VAP_CNTL	0x2080
     76 
     77 /* This register is written directly and also starts data section
     78  * in many 3d CP_PACKET3's
     79  */
     80 #define R300_VAP_VF_CNTL	0x2084
     81 #	define	R300_VAP_VF_CNTL__PRIM_TYPE__SHIFT              0
     82 #	define  R300_VAP_VF_CNTL__PRIM_NONE                     (0<<0)
     83 #	define  R300_VAP_VF_CNTL__PRIM_POINTS                   (1<<0)
     84 #	define  R300_VAP_VF_CNTL__PRIM_LINES                    (2<<0)
     85 #	define  R300_VAP_VF_CNTL__PRIM_LINE_STRIP               (3<<0)
     86 #	define  R300_VAP_VF_CNTL__PRIM_TRIANGLES                (4<<0)
     87 #	define  R300_VAP_VF_CNTL__PRIM_TRIANGLE_FAN             (5<<0)
     88 #	define  R300_VAP_VF_CNTL__PRIM_TRIANGLE_STRIP           (6<<0)
     89 #	define  R300_VAP_VF_CNTL__PRIM_LINE_LOOP                (12<<0)
     90 #	define  R300_VAP_VF_CNTL__PRIM_QUADS                    (13<<0)
     91 #	define  R300_VAP_VF_CNTL__PRIM_QUAD_STRIP               (14<<0)
     92 #	define  R300_VAP_VF_CNTL__PRIM_POLYGON                  (15<<0)
     93 
     94 #	define	R300_VAP_VF_CNTL__PRIM_WALK__SHIFT              4
     95 	/* State based - direct writes to registers trigger vertex
     96            generation */
     97 #	define	R300_VAP_VF_CNTL__PRIM_WALK_STATE_BASED         (0<<4)
     98 #	define	R300_VAP_VF_CNTL__PRIM_WALK_INDICES             (1<<4)
     99 #	define	R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST         (2<<4)
    100 #	define	R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED     (3<<4)
    101 
    102 	/* I don't think I saw these three used.. */
    103 #	define	R300_VAP_VF_CNTL__COLOR_ORDER__SHIFT            6
    104 #	define	R300_VAP_VF_CNTL__TCL_OUTPUT_CTL_ENA__SHIFT     9
    105 #	define	R300_VAP_VF_CNTL__PROG_STREAM_ENA__SHIFT        10
    106 
    107 	/* index size - when not set the indices are assumed to be 16 bit */
    108 #	define	R300_VAP_VF_CNTL__INDEX_SIZE_32bit              (1<<11)
    109 	/* number of vertices */
    110 #	define	R300_VAP_VF_CNTL__NUM_VERTICES__SHIFT           16
    111 
    112 /* BEGIN: Wild guesses */
    113 #define R300_VAP_OUTPUT_VTX_FMT_0           0x2090
    114 #       define R300_VAP_OUTPUT_VTX_FMT_0__POS_PRESENT     (1<<0)
    115 #       define R300_VAP_OUTPUT_VTX_FMT_0__COLOR_PRESENT   (1<<1)
    116 #       define R300_VAP_OUTPUT_VTX_FMT_0__COLOR_1_PRESENT (1<<2)  /* GUESS */
    117 #       define R300_VAP_OUTPUT_VTX_FMT_0__COLOR_2_PRESENT (1<<3)  /* GUESS */
    118 #       define R300_VAP_OUTPUT_VTX_FMT_0__COLOR_3_PRESENT (1<<4)  /* GUESS */
    119 #       define R300_VAP_OUTPUT_VTX_FMT_0__PT_SIZE_PRESENT (1<<16) /* GUESS */
    120 
    121 #define R300_VAP_OUTPUT_VTX_FMT_1           0x2094
    122 	/* each of the following is 3 bits wide, specifies number
    123 	   of components */
    124 #       define R300_VAP_OUTPUT_VTX_FMT_1__TEX_0_COMP_CNT_SHIFT 0
    125 #       define R300_VAP_OUTPUT_VTX_FMT_1__TEX_1_COMP_CNT_SHIFT 3
    126 #       define R300_VAP_OUTPUT_VTX_FMT_1__TEX_2_COMP_CNT_SHIFT 6
    127 #       define R300_VAP_OUTPUT_VTX_FMT_1__TEX_3_COMP_CNT_SHIFT 9
    128 #       define R300_VAP_OUTPUT_VTX_FMT_1__TEX_4_COMP_CNT_SHIFT 12
    129 #       define R300_VAP_OUTPUT_VTX_FMT_1__TEX_5_COMP_CNT_SHIFT 15
    130 #       define R300_VAP_OUTPUT_VTX_FMT_1__TEX_6_COMP_CNT_SHIFT 18
    131 #       define R300_VAP_OUTPUT_VTX_FMT_1__TEX_7_COMP_CNT_SHIFT 21
    132 /* END: Wild guesses */
    133 
    134 #define R300_SE_VTE_CNTL                  0x20b0
    135 #	define     R300_VPORT_X_SCALE_ENA                0x00000001
    136 #	define     R300_VPORT_X_OFFSET_ENA               0x00000002
    137 #	define     R300_VPORT_Y_SCALE_ENA                0x00000004
    138 #	define     R300_VPORT_Y_OFFSET_ENA               0x00000008
    139 #	define     R300_VPORT_Z_SCALE_ENA                0x00000010
    140 #	define     R300_VPORT_Z_OFFSET_ENA               0x00000020
    141 #	define     R300_VTX_XY_FMT                       0x00000100
    142 #	define     R300_VTX_Z_FMT                        0x00000200
    143 #	define     R300_VTX_W0_FMT                       0x00000400
    144 #	define     R300_VTX_W0_NORMALIZE                 0x00000800
    145 #	define     R300_VTX_ST_DENORMALIZED              0x00001000
    146 
    147 /* BEGIN: Vertex data assembly - lots of uncertainties */
    148 
    149 /* gap */
    150 
    151 #define R300_VAP_CNTL_STATUS              0x2140
    152 #	define R300_VC_NO_SWAP                  (0 << 0)
    153 #	define R300_VC_16BIT_SWAP               (1 << 0)
    154 #	define R300_VC_32BIT_SWAP               (2 << 0)
    155 #	define R300_VAP_TCL_BYPASS		(1 << 8)
    156 
    157 /* gap */
    158 
    159 /* Where do we get our vertex data?
    160  *
    161  * Vertex data either comes either from immediate mode registers or from
    162  * vertex arrays.
    163  * There appears to be no mixed mode (though we can force the pitch of
    164  * vertex arrays to 0, effectively reusing the same element over and over
    165  * again).
    166  *
    167  * Immediate mode is controlled by the INPUT_CNTL registers. I am not sure
    168  * if these registers influence vertex array processing.
    169  *
    170  * Vertex arrays are controlled via the 3D_LOAD_VBPNTR packet3.
    171  *
    172  * In both cases, vertex attributes are then passed through INPUT_ROUTE.
    173  *
    174  * Beginning with INPUT_ROUTE_0_0 is a list of WORDs that route vertex data
    175  * into the vertex processor's input registers.
    176  * The first word routes the first input, the second word the second, etc.
    177  * The corresponding input is routed into the register with the given index.
    178  * The list is ended by a word with INPUT_ROUTE_END set.
    179  *
    180  * Always set COMPONENTS_4 in immediate mode.
    181  */
    182 
    183 #define R300_VAP_INPUT_ROUTE_0_0            0x2150
    184 #       define R300_INPUT_ROUTE_COMPONENTS_1     (0 << 0)
    185 #       define R300_INPUT_ROUTE_COMPONENTS_2     (1 << 0)
    186 #       define R300_INPUT_ROUTE_COMPONENTS_3     (2 << 0)
    187 #       define R300_INPUT_ROUTE_COMPONENTS_4     (3 << 0)
    188 #       define R300_INPUT_ROUTE_COMPONENTS_RGBA  (4 << 0) /* GUESS */
    189 #       define R300_VAP_INPUT_ROUTE_IDX_SHIFT    8
    190 #       define R300_VAP_INPUT_ROUTE_IDX_MASK     (31 << 8) /* GUESS */
    191 #       define R300_VAP_INPUT_ROUTE_END          (1 << 13)
    192 #       define R300_INPUT_ROUTE_IMMEDIATE_MODE   (0 << 14) /* GUESS */
    193 #       define R300_INPUT_ROUTE_FLOAT            (1 << 14) /* GUESS */
    194 #       define R300_INPUT_ROUTE_UNSIGNED_BYTE    (2 << 14) /* GUESS */
    195 #       define R300_INPUT_ROUTE_FLOAT_COLOR      (3 << 14) /* GUESS */
    196 #define R300_VAP_INPUT_ROUTE_0_1            0x2154
    197 #define R300_VAP_INPUT_ROUTE_0_2            0x2158
    198 #define R300_VAP_INPUT_ROUTE_0_3            0x215C
    199 #define R300_VAP_INPUT_ROUTE_0_4            0x2160
    200 #define R300_VAP_INPUT_ROUTE_0_5            0x2164
    201 #define R300_VAP_INPUT_ROUTE_0_6            0x2168
    202 #define R300_VAP_INPUT_ROUTE_0_7            0x216C
    203 
    204 /* gap */
    205 
    206 /* Notes:
    207  *  - always set up to produce at least two attributes:
    208  *    if vertex program uses only position, fglrx will set normal, too
    209  *  - INPUT_CNTL_0_COLOR and INPUT_CNTL_COLOR bits are always equal.
    210  */
    211 #define R300_VAP_INPUT_CNTL_0               0x2180
    212 #       define R300_INPUT_CNTL_0_COLOR           0x00000001
    213 #define R300_VAP_INPUT_CNTL_1               0x2184
    214 #       define R300_INPUT_CNTL_POS               0x00000001
    215 #       define R300_INPUT_CNTL_NORMAL            0x00000002
    216 #       define R300_INPUT_CNTL_COLOR             0x00000004
    217 #       define R300_INPUT_CNTL_TC0               0x00000400
    218 #       define R300_INPUT_CNTL_TC1               0x00000800
    219 #       define R300_INPUT_CNTL_TC2               0x00001000 /* GUESS */
    220 #       define R300_INPUT_CNTL_TC3               0x00002000 /* GUESS */
    221 #       define R300_INPUT_CNTL_TC4               0x00004000 /* GUESS */
    222 #       define R300_INPUT_CNTL_TC5               0x00008000 /* GUESS */
    223 #       define R300_INPUT_CNTL_TC6               0x00010000 /* GUESS */
    224 #       define R300_INPUT_CNTL_TC7               0x00020000 /* GUESS */
    225 
    226 /* gap */
    227 
    228 /* Words parallel to INPUT_ROUTE_0; All words that are active in INPUT_ROUTE_0
    229  * are set to a swizzling bit pattern, other words are 0.
    230  *
    231  * In immediate mode, the pattern is always set to xyzw. In vertex array
    232  * mode, the swizzling pattern is e.g. used to set zw components in texture
    233  * coordinates with only tweo components.
    234  */
    235 #define R300_VAP_INPUT_ROUTE_1_0            0x21E0
    236 #       define R300_INPUT_ROUTE_SELECT_X    0
    237 #       define R300_INPUT_ROUTE_SELECT_Y    1
    238 #       define R300_INPUT_ROUTE_SELECT_Z    2
    239 #       define R300_INPUT_ROUTE_SELECT_W    3
    240 #       define R300_INPUT_ROUTE_SELECT_ZERO 4
    241 #       define R300_INPUT_ROUTE_SELECT_ONE  5
    242 #       define R300_INPUT_ROUTE_SELECT_MASK 7
    243 #       define R300_INPUT_ROUTE_X_SHIFT     0
    244 #       define R300_INPUT_ROUTE_Y_SHIFT     3
    245 #       define R300_INPUT_ROUTE_Z_SHIFT     6
    246 #       define R300_INPUT_ROUTE_W_SHIFT     9
    247 #       define R300_INPUT_ROUTE_ENABLE      (15 << 12)
    248 #define R300_VAP_INPUT_ROUTE_1_1            0x21E4
    249 #define R300_VAP_INPUT_ROUTE_1_2            0x21E8
    250 #define R300_VAP_INPUT_ROUTE_1_3            0x21EC
    251 #define R300_VAP_INPUT_ROUTE_1_4            0x21F0
    252 #define R300_VAP_INPUT_ROUTE_1_5            0x21F4
    253 #define R300_VAP_INPUT_ROUTE_1_6            0x21F8
    254 #define R300_VAP_INPUT_ROUTE_1_7            0x21FC
    255 
    256 /* END: Vertex data assembly */
    257 
    258 /* gap */
    259 
    260 /* BEGIN: Upload vertex program and data */
    261 
    262 /*
    263  * The programmable vertex shader unit has a memory bank of unknown size
    264  * that can be written to in 16 byte units by writing the address into
    265  * UPLOAD_ADDRESS, followed by data in UPLOAD_DATA (multiples of 4 DWORDs).
    266  *
    267  * Pointers into the memory bank are always in multiples of 16 bytes.
    268  *
    269  * The memory bank is divided into areas with fixed meaning.
    270  *
    271  * Starting at address UPLOAD_PROGRAM: Vertex program instructions.
    272  * Native limits reported by drivers from ATI suggest size 256 (i.e. 4KB),
    273  * whereas the difference between known addresses suggests size 512.
    274  *
    275  * Starting at address UPLOAD_PARAMETERS: Vertex program parameters.
    276  * Native reported limits and the VPI layout suggest size 256, whereas
    277  * difference between known addresses suggests size 512.
    278  *
    279  * At address UPLOAD_POINTSIZE is a vector (0, 0, ps, 0), where ps is the
    280  * floating point pointsize. The exact purpose of this state is uncertain,
    281  * as there is also the R300_RE_POINTSIZE register.
    282  *
    283  * Multiple vertex programs and parameter sets can be loaded at once,
    284  * which could explain the size discrepancy.
    285  */
    286 #define R300_VAP_PVS_UPLOAD_ADDRESS         0x2200
    287 #       define R300_PVS_UPLOAD_PROGRAM           0x00000000
    288 #       define R300_PVS_UPLOAD_PARAMETERS        0x00000200
    289 #       define R300_PVS_UPLOAD_POINTSIZE         0x00000406
    290 
    291 /* gap */
    292 
    293 #define R300_VAP_PVS_UPLOAD_DATA            0x2208
    294 
    295 /* END: Upload vertex program and data */
    296 
    297 /* gap */
    298 
    299 /* I do not know the purpose of this register. However, I do know that
    300  * it is set to 221C_CLEAR for clear operations and to 221C_NORMAL
    301  * for normal rendering.
    302  */
    303 #define R300_VAP_UNKNOWN_221C               0x221C
    304 #       define R300_221C_NORMAL                  0x00000000
    305 #       define R300_221C_CLEAR                   0x0001C000
    306 
    307 /* These seem to be per-pixel and per-vertex X and Y clipping planes. The first
    308  * plane is per-pixel and the second plane is per-vertex.
    309  *
    310  * This was determined by experimentation alone but I believe it is correct.
    311  *
    312  * These registers are called X_QUAD0_1_FL to X_QUAD0_4_FL by glxtest.
    313  */
    314 #define R300_VAP_CLIP_X_0                   0x2220
    315 #define R300_VAP_CLIP_X_1                   0x2224
    316 #define R300_VAP_CLIP_Y_0                   0x2228
    317 #define R300_VAP_CLIP_Y_1                   0x2230
    318 
    319 /* gap */
    320 
    321 /* Sometimes, END_OF_PKT and 0x2284=0 are the only commands sent between
    322  * rendering commands and overwriting vertex program parameters.
    323  * Therefore, I suspect writing zero to 0x2284 synchronizes the engine and
    324  * avoids bugs caused by still running shaders reading bad data from memory.
    325  */
    326 #define R300_VAP_PVS_STATE_FLUSH_REG        0x2284
    327 
    328 /* Absolutely no clue what this register is about. */
    329 #define R300_VAP_UNKNOWN_2288               0x2288
    330 #       define R300_2288_R300                    0x00750000 /* -- nh */
    331 #       define R300_2288_RV350                   0x0000FFFF /* -- Vladimir */
    332 
    333 /* gap */
    334 
    335 /* Addresses are relative to the vertex program instruction area of the
    336  * memory bank. PROGRAM_END points to the last instruction of the active
    337  * program
    338  *
    339  * The meaning of the two UNKNOWN fields is obviously not known. However,
    340  * experiments so far have shown that both *must* point to an instruction
    341  * inside the vertex program, otherwise the GPU locks up.
    342  *
    343  * fglrx usually sets CNTL_3_UNKNOWN to the end of the program and
    344  * R300_PVS_CNTL_1_POS_END_SHIFT points to instruction where last write to
    345  * position takes place.
    346  *
    347  * Most likely this is used to ignore rest of the program in cases
    348  * where group of verts arent visible. For some reason this "section"
    349  * is sometimes accepted other instruction that have no relationship with
    350  * position calculations.
    351  */
    352 #define R300_VAP_PVS_CNTL_1                 0x22D0
    353 #       define R300_PVS_CNTL_1_PROGRAM_START_SHIFT   0
    354 #       define R300_PVS_CNTL_1_POS_END_SHIFT         10
    355 #       define R300_PVS_CNTL_1_PROGRAM_END_SHIFT     20
    356 /* Addresses are relative the the vertex program parameters area. */
    357 #define R300_VAP_PVS_CNTL_2                 0x22D4
    358 #       define R300_PVS_CNTL_2_PARAM_OFFSET_SHIFT 0
    359 #       define R300_PVS_CNTL_2_PARAM_COUNT_SHIFT  16
    360 #define R300_VAP_PVS_CNTL_3	           0x22D8
    361 #       define R300_PVS_CNTL_3_PROGRAM_UNKNOWN_SHIFT 10
    362 #       define R300_PVS_CNTL_3_PROGRAM_UNKNOWN2_SHIFT 0
    363 
    364 /* The entire range from 0x2300 to 0x2AC inclusive seems to be used for
    365  * immediate vertices
    366  */
    367 #define R300_VAP_VTX_COLOR_R                0x2464
    368 #define R300_VAP_VTX_COLOR_G                0x2468
    369 #define R300_VAP_VTX_COLOR_B                0x246C
    370 #define R300_VAP_VTX_POS_0_X_1              0x2490 /* used for glVertex2*() */
    371 #define R300_VAP_VTX_POS_0_Y_1              0x2494
    372 #define R300_VAP_VTX_COLOR_PKD              0x249C /* RGBA */
    373 #define R300_VAP_VTX_POS_0_X_2              0x24A0 /* used for glVertex3*() */
    374 #define R300_VAP_VTX_POS_0_Y_2              0x24A4
    375 #define R300_VAP_VTX_POS_0_Z_2              0x24A8
    376 /* write 0 to indicate end of packet? */
    377 #define R300_VAP_VTX_END_OF_PKT             0x24AC
    378 
    379 /* gap */
    380 
    381 /* These are values from r300_reg/r300_reg.h - they are known to be correct
    382  * and are here so we can use one register file instead of several
    383  * - Vladimir
    384  */
    385 #define R300_GB_VAP_RASTER_VTX_FMT_0	0x4000
    386 #	define R300_GB_VAP_RASTER_VTX_FMT_0__POS_PRESENT	(1<<0)
    387 #	define R300_GB_VAP_RASTER_VTX_FMT_0__COLOR_0_PRESENT	(1<<1)
    388 #	define R300_GB_VAP_RASTER_VTX_FMT_0__COLOR_1_PRESENT	(1<<2)
    389 #	define R300_GB_VAP_RASTER_VTX_FMT_0__COLOR_2_PRESENT	(1<<3)
    390 #	define R300_GB_VAP_RASTER_VTX_FMT_0__COLOR_3_PRESENT	(1<<4)
    391 #	define R300_GB_VAP_RASTER_VTX_FMT_0__COLOR_SPACE	(0xf<<5)
    392 #	define R300_GB_VAP_RASTER_VTX_FMT_0__PT_SIZE_PRESENT	(0x1<<16)
    393 
    394 #define R300_GB_VAP_RASTER_VTX_FMT_1	0x4004
    395 	/* each of the following is 3 bits wide, specifies number
    396 	   of components */
    397 #	define R300_GB_VAP_RASTER_VTX_FMT_1__TEX_0_COMP_CNT_SHIFT	0
    398 #	define R300_GB_VAP_RASTER_VTX_FMT_1__TEX_1_COMP_CNT_SHIFT	3
    399 #	define R300_GB_VAP_RASTER_VTX_FMT_1__TEX_2_COMP_CNT_SHIFT	6
    400 #	define R300_GB_VAP_RASTER_VTX_FMT_1__TEX_3_COMP_CNT_SHIFT	9
    401 #	define R300_GB_VAP_RASTER_VTX_FMT_1__TEX_4_COMP_CNT_SHIFT	12
    402 #	define R300_GB_VAP_RASTER_VTX_FMT_1__TEX_5_COMP_CNT_SHIFT	15
    403 #	define R300_GB_VAP_RASTER_VTX_FMT_1__TEX_6_COMP_CNT_SHIFT	18
    404 #	define R300_GB_VAP_RASTER_VTX_FMT_1__TEX_7_COMP_CNT_SHIFT	21
    405 
    406 /* UNK30 seems to enables point to quad transformation on textures
    407  * (or something closely related to that).
    408  * This bit is rather fatal at the time being due to lackings at pixel
    409  * shader side
    410  */
    411 #define R300_GB_ENABLE	0x4008
    412 #	define R300_GB_POINT_STUFF_ENABLE	(1<<0)
    413 #	define R300_GB_LINE_STUFF_ENABLE	(1<<1)
    414 #	define R300_GB_TRIANGLE_STUFF_ENABLE	(1<<2)
    415 #	define R300_GB_STENCIL_AUTO_ENABLE	(1<<4)
    416 #	define R300_GB_UNK31			(1<<31)
    417 	/* each of the following is 2 bits wide */
    418 #define R300_GB_TEX_REPLICATE	0
    419 #define R300_GB_TEX_ST		1
    420 #define R300_GB_TEX_STR		2
    421 #	define R300_GB_TEX0_SOURCE_SHIFT	16
    422 #	define R300_GB_TEX1_SOURCE_SHIFT	18
    423 #	define R300_GB_TEX2_SOURCE_SHIFT	20
    424 #	define R300_GB_TEX3_SOURCE_SHIFT	22
    425 #	define R300_GB_TEX4_SOURCE_SHIFT	24
    426 #	define R300_GB_TEX5_SOURCE_SHIFT	26
    427 #	define R300_GB_TEX6_SOURCE_SHIFT	28
    428 #	define R300_GB_TEX7_SOURCE_SHIFT	30
    429 
    430 /* MSPOS - positions for multisample antialiasing (?) */
    431 #define R300_GB_MSPOS0	0x4010
    432 	/* shifts - each of the fields is 4 bits */
    433 #	define R300_GB_MSPOS0__MS_X0_SHIFT	0
    434 #	define R300_GB_MSPOS0__MS_Y0_SHIFT	4
    435 #	define R300_GB_MSPOS0__MS_X1_SHIFT	8
    436 #	define R300_GB_MSPOS0__MS_Y1_SHIFT	12
    437 #	define R300_GB_MSPOS0__MS_X2_SHIFT	16
    438 #	define R300_GB_MSPOS0__MS_Y2_SHIFT	20
    439 #	define R300_GB_MSPOS0__MSBD0_Y		24
    440 #	define R300_GB_MSPOS0__MSBD0_X		28
    441 
    442 #define R300_GB_MSPOS1	0x4014
    443 #	define R300_GB_MSPOS1__MS_X3_SHIFT	0
    444 #	define R300_GB_MSPOS1__MS_Y3_SHIFT	4
    445 #	define R300_GB_MSPOS1__MS_X4_SHIFT	8
    446 #	define R300_GB_MSPOS1__MS_Y4_SHIFT	12
    447 #	define R300_GB_MSPOS1__MS_X5_SHIFT	16
    448 #	define R300_GB_MSPOS1__MS_Y5_SHIFT	20
    449 #	define R300_GB_MSPOS1__MSBD1		24
    450 
    451 
    452 #define R300_GB_TILE_CONFIG	0x4018
    453 #	define R300_GB_TILE_ENABLE	(1<<0)
    454 #	define R300_GB_TILE_PIPE_COUNT_RV300	0
    455 #	define R300_GB_TILE_PIPE_COUNT_R300	(3<<1)
    456 #	define R300_GB_TILE_PIPE_COUNT_R420	(7<<1)
    457 #	define R300_GB_TILE_PIPE_COUNT_RV410	(3<<1)
    458 #	define R300_GB_TILE_SIZE_8		0
    459 #	define R300_GB_TILE_SIZE_16		(1<<4)
    460 #	define R300_GB_TILE_SIZE_32		(2<<4)
    461 #	define R300_GB_SUPER_SIZE_1		(0<<6)
    462 #	define R300_GB_SUPER_SIZE_2		(1<<6)
    463 #	define R300_GB_SUPER_SIZE_4		(2<<6)
    464 #	define R300_GB_SUPER_SIZE_8		(3<<6)
    465 #	define R300_GB_SUPER_SIZE_16		(4<<6)
    466 #	define R300_GB_SUPER_SIZE_32		(5<<6)
    467 #	define R300_GB_SUPER_SIZE_64		(6<<6)
    468 #	define R300_GB_SUPER_SIZE_128		(7<<6)
    469 #	define R300_GB_SUPER_X_SHIFT		9	/* 3 bits wide */
    470 #	define R300_GB_SUPER_Y_SHIFT		12	/* 3 bits wide */
    471 #	define R300_GB_SUPER_TILE_A		0
    472 #	define R300_GB_SUPER_TILE_B		(1<<15)
    473 #	define R300_GB_SUBPIXEL_1_12		0
    474 #	define R300_GB_SUBPIXEL_1_16		(1<<16)
    475 
    476 #define R300_GB_FIFO_SIZE	0x4024
    477 	/* each of the following is 2 bits wide */
    478 #define R300_GB_FIFO_SIZE_32	0
    479 #define R300_GB_FIFO_SIZE_64	1
    480 #define R300_GB_FIFO_SIZE_128	2
    481 #define R300_GB_FIFO_SIZE_256	3
    482 #	define R300_SC_IFIFO_SIZE_SHIFT	0
    483 #	define R300_SC_TZFIFO_SIZE_SHIFT	2
    484 #	define R300_SC_BFIFO_SIZE_SHIFT	4
    485 
    486 #	define R300_US_OFIFO_SIZE_SHIFT	12
    487 #	define R300_US_WFIFO_SIZE_SHIFT	14
    488 	/* the following use the same constants as above, but meaning is
    489 	   is times 2 (i.e. instead of 32 words it means 64 */
    490 #	define R300_RS_TFIFO_SIZE_SHIFT	6
    491 #	define R300_RS_CFIFO_SIZE_SHIFT	8
    492 #	define R300_US_RAM_SIZE_SHIFT		10
    493 	/* watermarks, 3 bits wide */
    494 #	define R300_RS_HIGHWATER_COL_SHIFT	16
    495 #	define R300_RS_HIGHWATER_TEX_SHIFT	19
    496 #	define R300_OFIFO_HIGHWATER_SHIFT	22	/* two bits only */
    497 #	define R300_CUBE_FIFO_HIGHWATER_COL_SHIFT	24
    498 
    499 #define R300_GB_SELECT	0x401C
    500 #	define R300_GB_FOG_SELECT_C0A		0
    501 #	define R300_GB_FOG_SELECT_C1A		1
    502 #	define R300_GB_FOG_SELECT_C2A		2
    503 #	define R300_GB_FOG_SELECT_C3A		3
    504 #	define R300_GB_FOG_SELECT_1_1_W	4
    505 #	define R300_GB_FOG_SELECT_Z		5
    506 #	define R300_GB_DEPTH_SELECT_Z		0
    507 #	define R300_GB_DEPTH_SELECT_1_1_W	(1<<3)
    508 #	define R300_GB_W_SELECT_1_W		0
    509 #	define R300_GB_W_SELECT_1		(1<<4)
    510 
    511 #define R300_GB_AA_CONFIG		0x4020
    512 #	define R300_AA_DISABLE			0x00
    513 #	define R300_AA_ENABLE			0x01
    514 #	define R300_AA_SUBSAMPLES_2		0
    515 #	define R300_AA_SUBSAMPLES_3		(1<<1)
    516 #	define R300_AA_SUBSAMPLES_4		(2<<1)
    517 #	define R300_AA_SUBSAMPLES_6		(3<<1)
    518 
    519 /* gap */
    520 
    521 /* Zero to flush caches. */
    522 #define R300_TX_INVALTAGS                   0x4100
    523 #define R300_TX_FLUSH                       0x0
    524 
    525 /* The upper enable bits are guessed, based on fglrx reported limits. */
    526 #define R300_TX_ENABLE                      0x4104
    527 #       define R300_TX_ENABLE_0                  (1 << 0)
    528 #       define R300_TX_ENABLE_1                  (1 << 1)
    529 #       define R300_TX_ENABLE_2                  (1 << 2)
    530 #       define R300_TX_ENABLE_3                  (1 << 3)
    531 #       define R300_TX_ENABLE_4                  (1 << 4)
    532 #       define R300_TX_ENABLE_5                  (1 << 5)
    533 #       define R300_TX_ENABLE_6                  (1 << 6)
    534 #       define R300_TX_ENABLE_7                  (1 << 7)
    535 #       define R300_TX_ENABLE_8                  (1 << 8)
    536 #       define R300_TX_ENABLE_9                  (1 << 9)
    537 #       define R300_TX_ENABLE_10                 (1 << 10)
    538 #       define R300_TX_ENABLE_11                 (1 << 11)
    539 #       define R300_TX_ENABLE_12                 (1 << 12)
    540 #       define R300_TX_ENABLE_13                 (1 << 13)
    541 #       define R300_TX_ENABLE_14                 (1 << 14)
    542 #       define R300_TX_ENABLE_15                 (1 << 15)
    543 
    544 /* The pointsize is given in multiples of 6. The pointsize can be
    545  * enormous: Clear() renders a single point that fills the entire
    546  * framebuffer.
    547  */
    548 #define R300_RE_POINTSIZE                   0x421C
    549 #       define R300_POINTSIZE_Y_SHIFT            0
    550 #       define R300_POINTSIZE_Y_MASK             (0xFFFF << 0) /* GUESS */
    551 #       define R300_POINTSIZE_X_SHIFT            16
    552 #       define R300_POINTSIZE_X_MASK             (0xFFFF << 16) /* GUESS */
    553 #       define R300_POINTSIZE_MAX             (R300_POINTSIZE_Y_MASK / 6)
    554 
    555 /* The line width is given in multiples of 6.
    556  * In default mode lines are classified as vertical lines.
    557  * HO: horizontal
    558  * VE: vertical or horizontal
    559  * HO & VE: no classification
    560  */
    561 #define R300_RE_LINE_CNT                      0x4234
    562 #       define R300_LINESIZE_SHIFT            0
    563 #       define R300_LINESIZE_MASK             (0xFFFF << 0) /* GUESS */
    564 #       define R300_LINESIZE_MAX             (R300_LINESIZE_MASK / 6)
    565 #       define R300_LINE_CNT_HO               (1 << 16)
    566 #       define R300_LINE_CNT_VE               (1 << 17)
    567 
    568 /* Some sort of scale or clamp value for texcoordless textures. */
    569 #define R300_RE_UNK4238                       0x4238
    570 
    571 /* Something shade related */
    572 #define R300_RE_SHADE                         0x4274
    573 
    574 #define R300_RE_SHADE_MODEL                   0x4278
    575 #	define R300_RE_SHADE_MODEL_SMOOTH     0x3aaaa
    576 #	define R300_RE_SHADE_MODEL_FLAT       0x39595
    577 
    578 /* Dangerous */
    579 #define R300_RE_POLYGON_MODE                  0x4288
    580 #	define R300_PM_ENABLED                (1 << 0)
    581 #	define R300_PM_FRONT_POINT            (0 << 0)
    582 #	define R300_PM_BACK_POINT             (0 << 0)
    583 #	define R300_PM_FRONT_LINE             (1 << 4)
    584 #	define R300_PM_FRONT_FILL             (1 << 5)
    585 #	define R300_PM_BACK_LINE              (1 << 7)
    586 #	define R300_PM_BACK_FILL              (1 << 8)
    587 
    588 /* Fog parameters */
    589 #define R300_RE_FOG_SCALE                     0x4294
    590 #define R300_RE_FOG_START                     0x4298
    591 
    592 /* Not sure why there are duplicate of factor and constant values.
    593  * My best guess so far is that there are separate zbiases for test and write.
    594  * Ordering might be wrong.
    595  * Some of the tests indicate that fgl has a fallback implementation of zbias
    596  * via pixel shaders.
    597  */
    598 #define R300_RE_ZBIAS_CNTL                    0x42A0 /* GUESS */
    599 #define R300_RE_ZBIAS_T_FACTOR                0x42A4
    600 #define R300_RE_ZBIAS_T_CONSTANT              0x42A8
    601 #define R300_RE_ZBIAS_W_FACTOR                0x42AC
    602 #define R300_RE_ZBIAS_W_CONSTANT              0x42B0
    603 
    604 /* This register needs to be set to (1<<1) for RV350 to correctly
    605  * perform depth test (see --vb-triangles in r300_demo)
    606  * Don't know about other chips. - Vladimir
    607  * This is set to 3 when GL_POLYGON_OFFSET_FILL is on.
    608  * My guess is that there are two bits for each zbias primitive
    609  * (FILL, LINE, POINT).
    610  *  One to enable depth test and one for depth write.
    611  * Yet this doesn't explain why depth writes work ...
    612  */
    613 #define R300_RE_OCCLUSION_CNTL		    0x42B4
    614 #	define R300_OCCLUSION_ON		(1<<1)
    615 
    616 #define R300_RE_CULL_CNTL                   0x42B8
    617 #       define R300_CULL_FRONT                   (1 << 0)
    618 #       define R300_CULL_BACK                    (1 << 1)
    619 #       define R300_FRONT_FACE_CCW               (0 << 2)
    620 #       define R300_FRONT_FACE_CW                (1 << 2)
    621 
    622 
    623 /* BEGIN: Rasterization / Interpolators - many guesses */
    624 
    625 /* 0_UNKNOWN_18 has always been set except for clear operations.
    626  * TC_CNT is the number of incoming texture coordinate sets (i.e. it depends
    627  * on the vertex program, *not* the fragment program)
    628  */
    629 #define R300_RS_CNTL_0                      0x4300
    630 #       define R300_RS_CNTL_TC_CNT_SHIFT         2
    631 #       define R300_RS_CNTL_TC_CNT_MASK          (7 << 2)
    632 	/* number of color interpolators used */
    633 #	define R300_RS_CNTL_CI_CNT_SHIFT         7
    634 #       define R300_RS_CNTL_0_UNKNOWN_18         (1 << 18)
    635 	/* Guess: RS_CNTL_1 holds the index of the highest used RS_ROUTE_n
    636 	   register. */
    637 #define R300_RS_CNTL_1                      0x4304
    638 
    639 /* gap */
    640 
    641 /* Only used for texture coordinates.
    642  * Use the source field to route texture coordinate input from the
    643  * vertex program to the desired interpolator. Note that the source
    644  * field is relative to the outputs the vertex program *actually*
    645  * writes. If a vertex program only writes texcoord[1], this will
    646  * be source index 0.
    647  * Set INTERP_USED on all interpolators that produce data used by
    648  * the fragment program. INTERP_USED looks like a swizzling mask,
    649  * but I haven't seen it used that way.
    650  *
    651  * Note: The _UNKNOWN constants are always set in their respective
    652  * register. I don't know if this is necessary.
    653  */
    654 #define R300_RS_INTERP_0                    0x4310
    655 #define R300_RS_INTERP_1                    0x4314
    656 #       define R300_RS_INTERP_1_UNKNOWN          0x40
    657 #define R300_RS_INTERP_2                    0x4318
    658 #       define R300_RS_INTERP_2_UNKNOWN          0x80
    659 #define R300_RS_INTERP_3                    0x431C
    660 #       define R300_RS_INTERP_3_UNKNOWN          0xC0
    661 #define R300_RS_INTERP_4                    0x4320
    662 #define R300_RS_INTERP_5                    0x4324
    663 #define R300_RS_INTERP_6                    0x4328
    664 #define R300_RS_INTERP_7                    0x432C
    665 #       define R300_RS_INTERP_SRC_SHIFT          2
    666 #       define R300_RS_INTERP_SRC_MASK           (7 << 2)
    667 #       define R300_RS_INTERP_USED               0x00D10000
    668 
    669 /* These DWORDs control how vertex data is routed into fragment program
    670  * registers, after interpolators.
    671  */
    672 #define R300_RS_ROUTE_0                     0x4330
    673 #define R300_RS_ROUTE_1                     0x4334
    674 #define R300_RS_ROUTE_2                     0x4338
    675 #define R300_RS_ROUTE_3                     0x433C /* GUESS */
    676 #define R300_RS_ROUTE_4                     0x4340 /* GUESS */
    677 #define R300_RS_ROUTE_5                     0x4344 /* GUESS */
    678 #define R300_RS_ROUTE_6                     0x4348 /* GUESS */
    679 #define R300_RS_ROUTE_7                     0x434C /* GUESS */
    680 #       define R300_RS_ROUTE_SOURCE_INTERP_0     0
    681 #       define R300_RS_ROUTE_SOURCE_INTERP_1     1
    682 #       define R300_RS_ROUTE_SOURCE_INTERP_2     2
    683 #       define R300_RS_ROUTE_SOURCE_INTERP_3     3
    684 #       define R300_RS_ROUTE_SOURCE_INTERP_4     4
    685 #       define R300_RS_ROUTE_SOURCE_INTERP_5     5 /* GUESS */
    686 #       define R300_RS_ROUTE_SOURCE_INTERP_6     6 /* GUESS */
    687 #       define R300_RS_ROUTE_SOURCE_INTERP_7     7 /* GUESS */
    688 #       define R300_RS_ROUTE_ENABLE              (1 << 3) /* GUESS */
    689 #       define R300_RS_ROUTE_DEST_SHIFT          6
    690 #       define R300_RS_ROUTE_DEST_MASK           (31 << 6) /* GUESS */
    691 
    692 /* Special handling for color: When the fragment program uses color,
    693  * the ROUTE_0_COLOR bit is set and ROUTE_0_COLOR_DEST contains the
    694  * color register index.
    695  *
    696  * Apperently you may set the R300_RS_ROUTE_0_COLOR bit, but not provide any
    697  * R300_RS_ROUTE_0_COLOR_DEST value; this setup is used for clearing the state.
    698  * See r300_ioctl.c:r300EmitClearState. I'm not sure if this setup is strictly
    699  * correct or not. - Oliver.
    700  */
    701 #       define R300_RS_ROUTE_0_COLOR             (1 << 14)
    702 #       define R300_RS_ROUTE_0_COLOR_DEST_SHIFT  17
    703 #       define R300_RS_ROUTE_0_COLOR_DEST_MASK   (31 << 17) /* GUESS */
    704 /* As above, but for secondary color */
    705 #		define R300_RS_ROUTE_1_COLOR1            (1 << 14)
    706 #		define R300_RS_ROUTE_1_COLOR1_DEST_SHIFT 17
    707 #		define R300_RS_ROUTE_1_COLOR1_DEST_MASK  (31 << 17)
    708 #		define R300_RS_ROUTE_1_UNKNOWN11         (1 << 11)
    709 /* END: Rasterization / Interpolators - many guesses */
    710 
    711 /* Hierarchical Z Enable */
    712 #define R300_SC_HYPERZ                   0x43a4
    713 #	define R300_SC_HYPERZ_DISABLE     (0 << 0)
    714 #	define R300_SC_HYPERZ_ENABLE      (1 << 0)
    715 #	define R300_SC_HYPERZ_MIN         (0 << 1)
    716 #	define R300_SC_HYPERZ_MAX         (1 << 1)
    717 #	define R300_SC_HYPERZ_ADJ_256     (0 << 2)
    718 #	define R300_SC_HYPERZ_ADJ_128     (1 << 2)
    719 #	define R300_SC_HYPERZ_ADJ_64      (2 << 2)
    720 #	define R300_SC_HYPERZ_ADJ_32      (3 << 2)
    721 #	define R300_SC_HYPERZ_ADJ_16      (4 << 2)
    722 #	define R300_SC_HYPERZ_ADJ_8       (5 << 2)
    723 #	define R300_SC_HYPERZ_ADJ_4       (6 << 2)
    724 #	define R300_SC_HYPERZ_ADJ_2       (7 << 2)
    725 #	define R300_SC_HYPERZ_HZ_Z0MIN_NO (0 << 5)
    726 #	define R300_SC_HYPERZ_HZ_Z0MIN    (1 << 5)
    727 #	define R300_SC_HYPERZ_HZ_Z0MAX_NO (0 << 6)
    728 #	define R300_SC_HYPERZ_HZ_Z0MAX    (1 << 6)
    729 
    730 #define R300_SC_EDGERULE                 0x43a8
    731 
    732 /* BEGIN: Scissors and cliprects */
    733 
    734 /* There are four clipping rectangles. Their corner coordinates are inclusive.
    735  * Every pixel is assigned a number from 0 and 15 by setting bits 0-3 depending
    736  * on whether the pixel is inside cliprects 0-3, respectively. For example,
    737  * if a pixel is inside cliprects 0 and 1, but outside 2 and 3, it is assigned
    738  * the number 3 (binary 0011).
    739  * Iff the bit corresponding to the pixel's number in RE_CLIPRECT_CNTL is set,
    740  * the pixel is rasterized.
    741  *
    742  * In addition to this, there is a scissors rectangle. Only pixels inside the
    743  * scissors rectangle are drawn. (coordinates are inclusive)
    744  *
    745  * For some reason, the top-left corner of the framebuffer is at (1440, 1440)
    746  * for the purpose of clipping and scissors.
    747  */
    748 #define R300_RE_CLIPRECT_TL_0               0x43B0
    749 #define R300_RE_CLIPRECT_BR_0               0x43B4
    750 #define R300_RE_CLIPRECT_TL_1               0x43B8
    751 #define R300_RE_CLIPRECT_BR_1               0x43BC
    752 #define R300_RE_CLIPRECT_TL_2               0x43C0
    753 #define R300_RE_CLIPRECT_BR_2               0x43C4
    754 #define R300_RE_CLIPRECT_TL_3               0x43C8
    755 #define R300_RE_CLIPRECT_BR_3               0x43CC
    756 #       define R300_CLIPRECT_OFFSET              1440
    757 #       define R300_CLIPRECT_MASK                0x1FFF
    758 #       define R300_CLIPRECT_X_SHIFT             0
    759 #       define R300_CLIPRECT_X_MASK              (0x1FFF << 0)
    760 #       define R300_CLIPRECT_Y_SHIFT             13
    761 #       define R300_CLIPRECT_Y_MASK              (0x1FFF << 13)
    762 #define R300_RE_CLIPRECT_CNTL               0x43D0
    763 #       define R300_CLIP_OUT                     (1 << 0)
    764 #       define R300_CLIP_0                       (1 << 1)
    765 #       define R300_CLIP_1                       (1 << 2)
    766 #       define R300_CLIP_10                      (1 << 3)
    767 #       define R300_CLIP_2                       (1 << 4)
    768 #       define R300_CLIP_20                      (1 << 5)
    769 #       define R300_CLIP_21                      (1 << 6)
    770 #       define R300_CLIP_210                     (1 << 7)
    771 #       define R300_CLIP_3                       (1 << 8)
    772 #       define R300_CLIP_30                      (1 << 9)
    773 #       define R300_CLIP_31                      (1 << 10)
    774 #       define R300_CLIP_310                     (1 << 11)
    775 #       define R300_CLIP_32                      (1 << 12)
    776 #       define R300_CLIP_320                     (1 << 13)
    777 #       define R300_CLIP_321                     (1 << 14)
    778 #       define R300_CLIP_3210                    (1 << 15)
    779 
    780 /* gap */
    781 
    782 #define R300_RE_SCISSORS_TL                 0x43E0
    783 #define R300_RE_SCISSORS_BR                 0x43E4
    784 #       define R300_SCISSORS_OFFSET              1440
    785 #       define R300_SCISSORS_X_SHIFT             0
    786 #       define R300_SCISSORS_X_MASK              (0x1FFF << 0)
    787 #       define R300_SCISSORS_Y_SHIFT             13
    788 #       define R300_SCISSORS_Y_MASK              (0x1FFF << 13)
    789 /* END: Scissors and cliprects */
    790 
    791 /* BEGIN: Texture specification */
    792 
    793 /*
    794  * The texture specification dwords are grouped by meaning and not by texture
    795  * unit. This means that e.g. the offset for texture image unit N is found in
    796  * register TX_OFFSET_0 + (4*N)
    797  */
    798 #define R300_TX_FILTER_0                    0x4400
    799 #       define R300_TX_REPEAT                    0
    800 #       define R300_TX_MIRRORED                  1
    801 #       define R300_TX_CLAMP                     4
    802 #       define R300_TX_CLAMP_TO_EDGE             2
    803 #       define R300_TX_CLAMP_TO_BORDER           6
    804 #       define R300_TX_WRAP_S_SHIFT              0
    805 #       define R300_TX_WRAP_S_MASK               (7 << 0)
    806 #       define R300_TX_WRAP_T_SHIFT              3
    807 #       define R300_TX_WRAP_T_MASK               (7 << 3)
    808 #       define R300_TX_WRAP_Q_SHIFT              6
    809 #       define R300_TX_WRAP_Q_MASK               (7 << 6)
    810 #       define R300_TX_MAG_FILTER_NEAREST        (1 << 9)
    811 #       define R300_TX_MAG_FILTER_LINEAR         (2 << 9)
    812 #       define R300_TX_MAG_FILTER_MASK           (3 << 9)
    813 #       define R300_TX_MIN_FILTER_NEAREST        (1 << 11)
    814 #       define R300_TX_MIN_FILTER_LINEAR         (2 << 11)
    815 #	define R300_TX_MIN_FILTER_NEAREST_MIP_NEAREST       (5  <<  11)
    816 #	define R300_TX_MIN_FILTER_NEAREST_MIP_LINEAR        (9  <<  11)
    817 #	define R300_TX_MIN_FILTER_LINEAR_MIP_NEAREST        (6  <<  11)
    818 #	define R300_TX_MIN_FILTER_LINEAR_MIP_LINEAR         (10 <<  11)
    819 
    820 /* NOTE: NEAREST doesn't seem to exist.
    821  * Im not seting MAG_FILTER_MASK and (3 << 11) on for all
    822  * anisotropy modes because that would void selected mag filter
    823  */
    824 #	define R300_TX_MIN_FILTER_ANISO_NEAREST             (0 << 13)
    825 #	define R300_TX_MIN_FILTER_ANISO_LINEAR              (0 << 13)
    826 #	define R300_TX_MIN_FILTER_ANISO_NEAREST_MIP_NEAREST (1 << 13)
    827 #	define R300_TX_MIN_FILTER_ANISO_NEAREST_MIP_LINEAR  (2 << 13)
    828 #       define R300_TX_MIN_FILTER_MASK   ( (15 << 11) | (3 << 13) )
    829 #	define R300_TX_MAX_ANISO_1_TO_1  (0 << 21)
    830 #	define R300_TX_MAX_ANISO_2_TO_1  (2 << 21)
    831 #	define R300_TX_MAX_ANISO_4_TO_1  (4 << 21)
    832 #	define R300_TX_MAX_ANISO_8_TO_1  (6 << 21)
    833 #	define R300_TX_MAX_ANISO_16_TO_1 (8 << 21)
    834 #	define R300_TX_MAX_ANISO_MASK    (14 << 21)
    835 
    836 #define R300_TX_FILTER1_0                      0x4440
    837 #	define R300_CHROMA_KEY_MODE_DISABLE    0
    838 #	define R300_CHROMA_KEY_FORCE	       1
    839 #	define R300_CHROMA_KEY_BLEND           2
    840 #	define R300_MC_ROUND_NORMAL            (0<<2)
    841 #	define R300_MC_ROUND_MPEG4             (1<<2)
    842 #	define R300_LOD_BIAS_MASK	    0x1fff
    843 #	define R300_EDGE_ANISO_EDGE_DIAG       (0<<13)
    844 #	define R300_EDGE_ANISO_EDGE_ONLY       (1<<13)
    845 #	define R300_MC_COORD_TRUNCATE_DISABLE  (0<<14)
    846 #	define R300_MC_COORD_TRUNCATE_MPEG     (1<<14)
    847 #	define R300_TX_TRI_PERF_0_8            (0<<15)
    848 #	define R300_TX_TRI_PERF_1_8            (1<<15)
    849 #	define R300_TX_TRI_PERF_1_4            (2<<15)
    850 #	define R300_TX_TRI_PERF_3_8            (3<<15)
    851 #	define R300_ANISO_THRESHOLD_MASK       (7<<17)
    852 
    853 #define R300_TX_SIZE_0                      0x4480
    854 #       define R300_TX_WIDTHMASK_SHIFT           0
    855 #       define R300_TX_WIDTHMASK_MASK            (2047 << 0)
    856 #       define R300_TX_HEIGHTMASK_SHIFT          11
    857 #       define R300_TX_HEIGHTMASK_MASK           (2047 << 11)
    858 #       define R300_TX_UNK23                     (1 << 23)
    859 #       define R300_TX_MAX_MIP_LEVEL_SHIFT       26
    860 #       define R300_TX_MAX_MIP_LEVEL_MASK        (0xf << 26)
    861 #       define R300_TX_SIZE_PROJECTED            (1<<30)
    862 #       define R300_TX_SIZE_TXPITCH_EN           (1<<31)
    863 #define R300_TX_FORMAT_0                    0x44C0
    864 	/* The interpretation of the format word by Wladimir van der Laan */
    865 	/* The X, Y, Z and W refer to the layout of the components.
    866 	   They are given meanings as R, G, B and Alpha by the swizzle
    867 	   specification */
    868 #	define R300_TX_FORMAT_X8		    0x0
    869 #	define R300_TX_FORMAT_X16		    0x1
    870 #	define R300_TX_FORMAT_Y4X4		    0x2
    871 #	define R300_TX_FORMAT_Y8X8		    0x3
    872 #	define R300_TX_FORMAT_Y16X16		    0x4
    873 #	define R300_TX_FORMAT_Z3Y3X2		    0x5
    874 #	define R300_TX_FORMAT_Z5Y6X5		    0x6
    875 #	define R300_TX_FORMAT_Z6Y5X5		    0x7
    876 #	define R300_TX_FORMAT_Z11Y11X10		    0x8
    877 #	define R300_TX_FORMAT_Z10Y11X11		    0x9
    878 #	define R300_TX_FORMAT_W4Z4Y4X4		    0xA
    879 #	define R300_TX_FORMAT_W1Z5Y5X5		    0xB
    880 #	define R300_TX_FORMAT_W8Z8Y8X8		    0xC
    881 #	define R300_TX_FORMAT_W2Z10Y10X10	    0xD
    882 #	define R300_TX_FORMAT_W16Z16Y16X16	    0xE
    883 #	define R300_TX_FORMAT_DXT1		    0xF
    884 #	define R300_TX_FORMAT_DXT3		    0x10
    885 #	define R300_TX_FORMAT_DXT5		    0x11
    886 #	define R300_TX_FORMAT_D3DMFT_CxV8U8	    0x12     /* no swizzle */
    887 #	define R300_TX_FORMAT_A8R8G8B8		    0x13     /* no swizzle */
    888 #	define R300_TX_FORMAT_B8G8_B8G8		    0x14     /* no swizzle */
    889 #	define R300_TX_FORMAT_G8R8_G8B8		    0x15     /* no swizzle */
    890 	/* 0x16 - some 16 bit green format.. ?? */
    891 #	define R300_TX_FORMAT_UNK25		   (1 << 25) /* no swizzle */
    892 #	define R300_TX_FORMAT_CUBIC_MAP		   (1 << 26)
    893 
    894 	/* gap */
    895 	/* Floating point formats */
    896 	/* Note - hardware supports both 16 and 32 bit floating point */
    897 #	define R300_TX_FORMAT_FL_I16		    0x18
    898 #	define R300_TX_FORMAT_FL_I16A16		    0x19
    899 #	define R300_TX_FORMAT_FL_R16G16B16A16	    0x1A
    900 #	define R300_TX_FORMAT_FL_I32		    0x1B
    901 #	define R300_TX_FORMAT_FL_I32A32		    0x1C
    902 #	define R300_TX_FORMAT_FL_R32G32B32A32	    0x1D
    903 #	define R300_TX_FORMAT_ATI2N		    0x1F
    904 	/* alpha modes, convenience mostly */
    905 	/* if you have alpha, pick constant appropriate to the
    906 	   number of channels (1 for I8, 2 for I8A8, 4 for R8G8B8A8, etc */
    907 #	define R300_TX_FORMAT_ALPHA_1CH		    0x000
    908 #	define R300_TX_FORMAT_ALPHA_2CH		    0x200
    909 #	define R300_TX_FORMAT_ALPHA_4CH		    0x600
    910 #	define R300_TX_FORMAT_ALPHA_NONE	    0xA00
    911 	/* Swizzling */
    912 	/* constants */
    913 #	define R300_TX_FORMAT_X		0
    914 #	define R300_TX_FORMAT_Y		1
    915 #	define R300_TX_FORMAT_Z		2
    916 #	define R300_TX_FORMAT_W		3
    917 #	define R300_TX_FORMAT_ZERO	4
    918 #	define R300_TX_FORMAT_ONE	5
    919 	/* 2.0*Z, everything above 1.0 is set to 0.0 */
    920 #	define R300_TX_FORMAT_CUT_Z	6
    921 	/* 2.0*W, everything above 1.0 is set to 0.0 */
    922 #	define R300_TX_FORMAT_CUT_W	7
    923 
    924 #	define R300_TX_FORMAT_B_SHIFT	18
    925 #	define R300_TX_FORMAT_G_SHIFT	15
    926 #	define R300_TX_FORMAT_R_SHIFT	12
    927 #	define R300_TX_FORMAT_A_SHIFT	9
    928 	/* Convenience macro to take care of layout and swizzling */
    929 #	define R300_EASY_TX_FORMAT(B, G, R, A, FMT)	(		\
    930 		((R300_TX_FORMAT_##B)<<R300_TX_FORMAT_B_SHIFT)		\
    931 		| ((R300_TX_FORMAT_##G)<<R300_TX_FORMAT_G_SHIFT)	\
    932 		| ((R300_TX_FORMAT_##R)<<R300_TX_FORMAT_R_SHIFT)	\
    933 		| ((R300_TX_FORMAT_##A)<<R300_TX_FORMAT_A_SHIFT)	\
    934 		| (R300_TX_FORMAT_##FMT)				\
    935 		)
    936 	/* These can be ORed with result of R300_EASY_TX_FORMAT()
    937 	   We don't really know what they do. Take values from a
    938            constant color ? */
    939 #	define R300_TX_FORMAT_CONST_X		(1<<5)
    940 #	define R300_TX_FORMAT_CONST_Y		(2<<5)
    941 #	define R300_TX_FORMAT_CONST_Z		(4<<5)
    942 #	define R300_TX_FORMAT_CONST_W		(8<<5)
    943 
    944 #	define R300_TX_FORMAT_YUV_MODE		0x00800000
    945 
    946 #define R300_TX_PITCH_0			    0x4500 /* obvious missing in gap */
    947 #define R300_TX_OFFSET_0                    0x4540
    948 	/* BEGIN: Guess from R200 */
    949 #       define R300_TXO_ENDIAN_NO_SWAP           (0 << 0)
    950 #       define R300_TXO_ENDIAN_BYTE_SWAP         (1 << 0)
    951 #       define R300_TXO_ENDIAN_WORD_SWAP         (2 << 0)
    952 #       define R300_TXO_ENDIAN_HALFDW_SWAP       (3 << 0)
    953 #       define R300_TXO_MACRO_TILE               (1 << 2)
    954 #       define R300_TXO_MICRO_TILE               (1 << 3)
    955 #       define R300_TXO_MICRO_TILE_SQUARE        (2 << 3)
    956 #       define R300_TXO_OFFSET_MASK              0xffffffe0
    957 #       define R300_TXO_OFFSET_SHIFT             5
    958 	/* END: Guess from R200 */
    959 
    960 /* 32 bit chroma key */
    961 #define R300_TX_CHROMA_KEY_0                      0x4580
    962 /* ff00ff00 == { 0, 1.0, 0, 1.0 } */
    963 #define R300_TX_BORDER_COLOR_0              0x45C0
    964 
    965 /* END: Texture specification */
    966 
    967 /* BEGIN: Fragment program instruction set */
    968 
    969 /* Fragment programs are written directly into register space.
    970  * There are separate instruction streams for texture instructions and ALU
    971  * instructions.
    972  * In order to synchronize these streams, the program is divided into up
    973  * to 4 nodes. Each node begins with a number of TEX operations, followed
    974  * by a number of ALU operations.
    975  * The first node can have zero TEX ops, all subsequent nodes must have at
    976  * least
    977  * one TEX ops.
    978  * All nodes must have at least one ALU op.
    979  *
    980  * The index of the last node is stored in PFS_CNTL_0: A value of 0 means
    981  * 1 node, a value of 3 means 4 nodes.
    982  * The total amount of instructions is defined in PFS_CNTL_2. The offsets are
    983  * offsets into the respective instruction streams, while *_END points to the
    984  * last instruction relative to this offset.
    985  */
    986 #define R300_PFS_CNTL_0                     0x4600
    987 #       define R300_PFS_CNTL_LAST_NODES_SHIFT    0
    988 #       define R300_PFS_CNTL_LAST_NODES_MASK     (3 << 0)
    989 #       define R300_PFS_CNTL_FIRST_NODE_HAS_TEX  (1 << 3)
    990 #define R300_PFS_CNTL_1                     0x4604
    991 /* There is an unshifted value here which has so far always been equal to the
    992  * index of the highest used temporary register.
    993  */
    994 #define R300_PFS_CNTL_2                     0x4608
    995 #       define R300_PFS_CNTL_ALU_OFFSET_SHIFT    0
    996 #       define R300_PFS_CNTL_ALU_OFFSET_MASK     (63 << 0)
    997 #       define R300_PFS_CNTL_ALU_END_SHIFT       6
    998 #       define R300_PFS_CNTL_ALU_END_MASK        (63 << 6)
    999 #       define R300_PFS_CNTL_TEX_OFFSET_SHIFT    12
   1000 #       define R300_PFS_CNTL_TEX_OFFSET_MASK     (31 << 12) /* GUESS */
   1001 #       define R300_PFS_CNTL_TEX_END_SHIFT       18
   1002 #       define R300_PFS_CNTL_TEX_END_MASK        (31 << 18) /* GUESS */
   1003 
   1004 /* gap */
   1005 
   1006 /* Nodes are stored backwards. The last active node is always stored in
   1007  * PFS_NODE_3.
   1008  * Example: In a 2-node program, NODE_0 and NODE_1 are set to 0. The
   1009  * first node is stored in NODE_2, the second node is stored in NODE_3.
   1010  *
   1011  * Offsets are relative to the master offset from PFS_CNTL_2.
   1012  */
   1013 #define R300_PFS_NODE_0                     0x4610
   1014 #define R300_PFS_NODE_1                     0x4614
   1015 #define R300_PFS_NODE_2                     0x4618
   1016 #define R300_PFS_NODE_3                     0x461C
   1017 #       define R300_PFS_NODE_ALU_OFFSET_SHIFT    0
   1018 #       define R300_PFS_NODE_ALU_OFFSET_MASK     (63 << 0)
   1019 #       define R300_PFS_NODE_ALU_END_SHIFT       6
   1020 #       define R300_PFS_NODE_ALU_END_MASK        (63 << 6)
   1021 #       define R300_PFS_NODE_TEX_OFFSET_SHIFT    12
   1022 #       define R300_PFS_NODE_TEX_OFFSET_MASK     (31 << 12)
   1023 #       define R300_PFS_NODE_TEX_END_SHIFT       17
   1024 #       define R300_PFS_NODE_TEX_END_MASK        (31 << 17)
   1025 #		define R300_PFS_NODE_OUTPUT_COLOR        (1 << 22)
   1026 #		define R300_PFS_NODE_OUTPUT_DEPTH        (1 << 23)
   1027 
   1028 /* TEX
   1029  * As far as I can tell, texture instructions cannot write into output
   1030  * registers directly. A subsequent ALU instruction is always necessary,
   1031  * even if it's just MAD o0, r0, 1, 0
   1032  */
   1033 #define R300_PFS_TEXI_0                     0x4620
   1034 #	define R300_FPITX_SRC_SHIFT              0
   1035 #	define R300_FPITX_SRC_MASK               (31 << 0)
   1036 	/* GUESS */
   1037 #	define R300_FPITX_SRC_CONST              (1 << 5)
   1038 #	define R300_FPITX_DST_SHIFT              6
   1039 #	define R300_FPITX_DST_MASK               (31 << 6)
   1040 #	define R300_FPITX_IMAGE_SHIFT            11
   1041 	/* GUESS based on layout and native limits */
   1042 #       define R300_FPITX_IMAGE_MASK             (15 << 11)
   1043 /* Unsure if these are opcodes, or some kind of bitfield, but this is how
   1044  * they were set when I checked
   1045  */
   1046 #	define R300_FPITX_OPCODE_SHIFT		15
   1047 #		define R300_FPITX_OP_TEX	1
   1048 #		define R300_FPITX_OP_KIL	2
   1049 #		define R300_FPITX_OP_TXP	3
   1050 #		define R300_FPITX_OP_TXB	4
   1051 #	define R300_FPITX_OPCODE_MASK           (7 << 15)
   1052 
   1053 /* ALU
   1054  * The ALU instructions register blocks are enumerated according to the order
   1055  * in which fglrx. I assume there is space for 64 instructions, since
   1056  * each block has space for a maximum of 64 DWORDs, and this matches reported
   1057  * native limits.
   1058  *
   1059  * The basic functional block seems to be one MAD for each color and alpha,
   1060  * and an adder that adds all components after the MUL.
   1061  *  - ADD, MUL, MAD etc.: use MAD with appropriate neutral operands
   1062  *  - DP4: Use OUTC_DP4, OUTA_DP4
   1063  *  - DP3: Use OUTC_DP3, OUTA_DP4, appropriate alpha operands
   1064  *  - DPH: Use OUTC_DP4, OUTA_DP4, appropriate alpha operands
   1065  *  - CMPH: If ARG2 > 0.5, return ARG0, else return ARG1
   1066  *  - CMP: If ARG2 < 0, return ARG1, else return ARG0
   1067  *  - FLR: use FRC+MAD
   1068  *  - XPD: use MAD+MAD
   1069  *  - SGE, SLT: use MAD+CMP
   1070  *  - RSQ: use ABS modifier for argument
   1071  *  - Use OUTC_REPL_ALPHA to write results of an alpha-only operation
   1072  *    (e.g. RCP) into color register
   1073  *  - apparently, there's no quick DST operation
   1074  *  - fglrx set FPI2_UNKNOWN_31 on a "MAD fragment.color, tmp0, tmp1, tmp2"
   1075  *  - fglrx set FPI2_UNKNOWN_31 on a "MAX r2, r1, c0"
   1076  *  - fglrx once set FPI0_UNKNOWN_31 on a "FRC r1, r1"
   1077  *
   1078  * Operand selection
   1079  * First stage selects three sources from the available registers and
   1080  * constant parameters. This is defined in INSTR1 (color) and INSTR3 (alpha).
   1081  * fglrx sorts the three source fields: Registers before constants,
   1082  * lower indices before higher indices; I do not know whether this is
   1083  * necessary.
   1084  *
   1085  * fglrx fills unused sources with "read constant 0"
   1086  * According to specs, you cannot select more than two different constants.
   1087  *
   1088  * Second stage selects the operands from the sources. This is defined in
   1089  * INSTR0 (color) and INSTR2 (alpha). You can also select the special constants
   1090  * zero and one.
   1091  * Swizzling and negation happens in this stage, as well.
   1092  *
   1093  * Important: Color and alpha seem to be mostly separate, i.e. their sources
   1094  * selection appears to be fully independent (the register storage is probably
   1095  * physically split into a color and an alpha section).
   1096  * However (because of the apparent physical split), there is some interaction
   1097  * WRT swizzling. If, for example, you want to load an R component into an
   1098  * Alpha operand, this R component is taken from a *color* source, not from
   1099  * an alpha source. The corresponding register doesn't even have to appear in
   1100  * the alpha sources list. (I hope this all makes sense to you)
   1101  *
   1102  * Destination selection
   1103  * The destination register index is in FPI1 (color) and FPI3 (alpha)
   1104  * together with enable bits.
   1105  * There are separate enable bits for writing into temporary registers
   1106  * (DSTC_REG_* /DSTA_REG) and and program output registers (DSTC_OUTPUT_*
   1107  * /DSTA_OUTPUT). You can write to both at once, or not write at all (the
   1108  * same index must be used for both).
   1109  *
   1110  * Note: There is a special form for LRP
   1111  *  - Argument order is the same as in ARB_fragment_program.
   1112  *  - Operation is MAD
   1113  *  - ARG1 is set to ARGC_SRC1C_LRP/ARGC_SRC1A_LRP
   1114  *  - Set FPI0/FPI2_SPECIAL_LRP
   1115  * Arbitrary LRP (including support for swizzling) requires vanilla MAD+MAD
   1116  */
   1117 #define R300_PFS_INSTR1_0                   0x46C0
   1118 #       define R300_FPI1_SRC0C_SHIFT             0
   1119 #       define R300_FPI1_SRC0C_MASK              (31 << 0)
   1120 #       define R300_FPI1_SRC0C_CONST             (1 << 5)
   1121 #       define R300_FPI1_SRC1C_SHIFT             6
   1122 #       define R300_FPI1_SRC1C_MASK              (31 << 6)
   1123 #       define R300_FPI1_SRC1C_CONST             (1 << 11)
   1124 #       define R300_FPI1_SRC2C_SHIFT             12
   1125 #       define R300_FPI1_SRC2C_MASK              (31 << 12)
   1126 #       define R300_FPI1_SRC2C_CONST             (1 << 17)
   1127 #       define R300_FPI1_SRC_MASK                0x0003ffff
   1128 #       define R300_FPI1_DSTC_SHIFT              18
   1129 #       define R300_FPI1_DSTC_MASK               (31 << 18)
   1130 #		define R300_FPI1_DSTC_REG_MASK_SHIFT     23
   1131 #       define R300_FPI1_DSTC_REG_X              (1 << 23)
   1132 #       define R300_FPI1_DSTC_REG_Y              (1 << 24)
   1133 #       define R300_FPI1_DSTC_REG_Z              (1 << 25)
   1134 #		define R300_FPI1_DSTC_OUTPUT_MASK_SHIFT  26
   1135 #       define R300_FPI1_DSTC_OUTPUT_X           (1 << 26)
   1136 #       define R300_FPI1_DSTC_OUTPUT_Y           (1 << 27)
   1137 #       define R300_FPI1_DSTC_OUTPUT_Z           (1 << 28)
   1138 
   1139 #define R300_PFS_INSTR3_0                   0x47C0
   1140 #       define R300_FPI3_SRC0A_SHIFT             0
   1141 #       define R300_FPI3_SRC0A_MASK              (31 << 0)
   1142 #       define R300_FPI3_SRC0A_CONST             (1 << 5)
   1143 #       define R300_FPI3_SRC1A_SHIFT             6
   1144 #       define R300_FPI3_SRC1A_MASK              (31 << 6)
   1145 #       define R300_FPI3_SRC1A_CONST             (1 << 11)
   1146 #       define R300_FPI3_SRC2A_SHIFT             12
   1147 #       define R300_FPI3_SRC2A_MASK              (31 << 12)
   1148 #       define R300_FPI3_SRC2A_CONST             (1 << 17)
   1149 #       define R300_FPI3_SRC_MASK                0x0003ffff
   1150 #       define R300_FPI3_DSTA_SHIFT              18
   1151 #       define R300_FPI3_DSTA_MASK               (31 << 18)
   1152 #       define R300_FPI3_DSTA_REG                (1 << 23)
   1153 #       define R300_FPI3_DSTA_OUTPUT             (1 << 24)
   1154 #		define R300_FPI3_DSTA_DEPTH              (1 << 27)
   1155 
   1156 #define R300_PFS_INSTR0_0                   0x48C0
   1157 #       define R300_FPI0_ARGC_SRC0C_XYZ          0
   1158 #       define R300_FPI0_ARGC_SRC0C_XXX          1
   1159 #       define R300_FPI0_ARGC_SRC0C_YYY          2
   1160 #       define R300_FPI0_ARGC_SRC0C_ZZZ          3
   1161 #       define R300_FPI0_ARGC_SRC1C_XYZ          4
   1162 #       define R300_FPI0_ARGC_SRC1C_XXX          5
   1163 #       define R300_FPI0_ARGC_SRC1C_YYY          6
   1164 #       define R300_FPI0_ARGC_SRC1C_ZZZ          7
   1165 #       define R300_FPI0_ARGC_SRC2C_XYZ          8
   1166 #       define R300_FPI0_ARGC_SRC2C_XXX          9
   1167 #       define R300_FPI0_ARGC_SRC2C_YYY          10
   1168 #       define R300_FPI0_ARGC_SRC2C_ZZZ          11
   1169 #       define R300_FPI0_ARGC_SRC0A              12
   1170 #       define R300_FPI0_ARGC_SRC1A              13
   1171 #       define R300_FPI0_ARGC_SRC2A              14
   1172 #       define R300_FPI0_ARGC_SRC1C_LRP          15
   1173 #       define R300_FPI0_ARGC_ZERO               20
   1174 #       define R300_FPI0_ARGC_ONE                21
   1175 	/* GUESS */
   1176 #       define R300_FPI0_ARGC_HALF               22
   1177 #       define R300_FPI0_ARGC_SRC0C_YZX          23
   1178 #       define R300_FPI0_ARGC_SRC1C_YZX          24
   1179 #       define R300_FPI0_ARGC_SRC2C_YZX          25
   1180 #       define R300_FPI0_ARGC_SRC0C_ZXY          26
   1181 #       define R300_FPI0_ARGC_SRC1C_ZXY          27
   1182 #       define R300_FPI0_ARGC_SRC2C_ZXY          28
   1183 #       define R300_FPI0_ARGC_SRC0CA_WZY         29
   1184 #       define R300_FPI0_ARGC_SRC1CA_WZY         30
   1185 #       define R300_FPI0_ARGC_SRC2CA_WZY         31
   1186 
   1187 #       define R300_FPI0_ARG0C_SHIFT             0
   1188 #       define R300_FPI0_ARG0C_MASK              (31 << 0)
   1189 #       define R300_FPI0_ARG0C_NEG               (1 << 5)
   1190 #       define R300_FPI0_ARG0C_ABS               (1 << 6)
   1191 #       define R300_FPI0_ARG1C_SHIFT             7
   1192 #       define R300_FPI0_ARG1C_MASK              (31 << 7)
   1193 #       define R300_FPI0_ARG1C_NEG               (1 << 12)
   1194 #       define R300_FPI0_ARG1C_ABS               (1 << 13)
   1195 #       define R300_FPI0_ARG2C_SHIFT             14
   1196 #       define R300_FPI0_ARG2C_MASK              (31 << 14)
   1197 #       define R300_FPI0_ARG2C_NEG               (1 << 19)
   1198 #       define R300_FPI0_ARG2C_ABS               (1 << 20)
   1199 #       define R300_FPI0_SPECIAL_LRP             (1 << 21)
   1200 #       define R300_FPI0_OUTC_MAD                (0 << 23)
   1201 #       define R300_FPI0_OUTC_DP3                (1 << 23)
   1202 #       define R300_FPI0_OUTC_DP4                (2 << 23)
   1203 #       define R300_FPI0_OUTC_MIN                (4 << 23)
   1204 #       define R300_FPI0_OUTC_MAX                (5 << 23)
   1205 #       define R300_FPI0_OUTC_CMPH               (7 << 23)
   1206 #       define R300_FPI0_OUTC_CMP                (8 << 23)
   1207 #       define R300_FPI0_OUTC_FRC                (9 << 23)
   1208 #       define R300_FPI0_OUTC_REPL_ALPHA         (10 << 23)
   1209 #       define R300_FPI0_OUTC_SAT                (1 << 30)
   1210 #       define R300_FPI0_INSERT_NOP              (1 << 31)
   1211 
   1212 #define R300_PFS_INSTR2_0                   0x49C0
   1213 #       define R300_FPI2_ARGA_SRC0C_X            0
   1214 #       define R300_FPI2_ARGA_SRC0C_Y            1
   1215 #       define R300_FPI2_ARGA_SRC0C_Z            2
   1216 #       define R300_FPI2_ARGA_SRC1C_X            3
   1217 #       define R300_FPI2_ARGA_SRC1C_Y            4
   1218 #       define R300_FPI2_ARGA_SRC1C_Z            5
   1219 #       define R300_FPI2_ARGA_SRC2C_X            6
   1220 #       define R300_FPI2_ARGA_SRC2C_Y            7
   1221 #       define R300_FPI2_ARGA_SRC2C_Z            8
   1222 #       define R300_FPI2_ARGA_SRC0A              9
   1223 #       define R300_FPI2_ARGA_SRC1A              10
   1224 #       define R300_FPI2_ARGA_SRC2A              11
   1225 #       define R300_FPI2_ARGA_SRC1A_LRP          15
   1226 #       define R300_FPI2_ARGA_ZERO               16
   1227 #       define R300_FPI2_ARGA_ONE                17
   1228 	/* GUESS */
   1229 #       define R300_FPI2_ARGA_HALF               18
   1230 #       define R300_FPI2_ARG0A_SHIFT             0
   1231 #       define R300_FPI2_ARG0A_MASK              (31 << 0)
   1232 #       define R300_FPI2_ARG0A_NEG               (1 << 5)
   1233 	/* GUESS */
   1234 #	define R300_FPI2_ARG0A_ABS		 (1 << 6)
   1235 #       define R300_FPI2_ARG1A_SHIFT             7
   1236 #       define R300_FPI2_ARG1A_MASK              (31 << 7)
   1237 #       define R300_FPI2_ARG1A_NEG               (1 << 12)
   1238 	/* GUESS */
   1239 #	define R300_FPI2_ARG1A_ABS		 (1 << 13)
   1240 #       define R300_FPI2_ARG2A_SHIFT             14
   1241 #       define R300_FPI2_ARG2A_MASK              (31 << 14)
   1242 #       define R300_FPI2_ARG2A_NEG               (1 << 19)
   1243 	/* GUESS */
   1244 #	define R300_FPI2_ARG2A_ABS		 (1 << 20)
   1245 #       define R300_FPI2_SPECIAL_LRP             (1 << 21)
   1246 #       define R300_FPI2_OUTA_MAD                (0 << 23)
   1247 #       define R300_FPI2_OUTA_DP4                (1 << 23)
   1248 #       define R300_FPI2_OUTA_MIN                (2 << 23)
   1249 #       define R300_FPI2_OUTA_MAX                (3 << 23)
   1250 #       define R300_FPI2_OUTA_CMP                (6 << 23)
   1251 #       define R300_FPI2_OUTA_FRC                (7 << 23)
   1252 #       define R300_FPI2_OUTA_EX2                (8 << 23)
   1253 #       define R300_FPI2_OUTA_LG2                (9 << 23)
   1254 #       define R300_FPI2_OUTA_RCP                (10 << 23)
   1255 #       define R300_FPI2_OUTA_RSQ                (11 << 23)
   1256 #       define R300_FPI2_OUTA_SAT                (1 << 30)
   1257 #       define R300_FPI2_UNKNOWN_31              (1 << 31)
   1258 /* END: Fragment program instruction set */
   1259 
   1260 /* Fog state and color */
   1261 #define R300_RE_FOG_STATE                   0x4BC0
   1262 #       define R300_FOG_ENABLE                   (1 << 0)
   1263 #	define R300_FOG_MODE_LINEAR              (0 << 1)
   1264 #	define R300_FOG_MODE_EXP                 (1 << 1)
   1265 #	define R300_FOG_MODE_EXP2                (2 << 1)
   1266 #	define R300_FOG_MODE_MASK                (3 << 1)
   1267 #define R300_FOG_COLOR_R                    0x4BC8
   1268 #define R300_FOG_COLOR_G                    0x4BCC
   1269 #define R300_FOG_COLOR_B                    0x4BD0
   1270 
   1271 #define R300_PP_ALPHA_TEST                  0x4BD4
   1272 #       define R300_REF_ALPHA_MASK               0x000000ff
   1273 #       define R300_ALPHA_TEST_FAIL              (0 << 8)
   1274 #       define R300_ALPHA_TEST_LESS              (1 << 8)
   1275 #       define R300_ALPHA_TEST_LEQUAL            (3 << 8)
   1276 #       define R300_ALPHA_TEST_EQUAL             (2 << 8)
   1277 #       define R300_ALPHA_TEST_GEQUAL            (6 << 8)
   1278 #       define R300_ALPHA_TEST_GREATER           (4 << 8)
   1279 #       define R300_ALPHA_TEST_NEQUAL            (5 << 8)
   1280 #       define R300_ALPHA_TEST_PASS              (7 << 8)
   1281 #       define R300_ALPHA_TEST_OP_MASK           (7 << 8)
   1282 #       define R300_ALPHA_TEST_ENABLE            (1 << 11)
   1283 
   1284 /* gap */
   1285 
   1286 /* Fragment program parameters in 7.16 floating point */
   1287 #define R300_PFS_PARAM_0_X                  0x4C00
   1288 #define R300_PFS_PARAM_0_Y                  0x4C04
   1289 #define R300_PFS_PARAM_0_Z                  0x4C08
   1290 #define R300_PFS_PARAM_0_W                  0x4C0C
   1291 /* GUESS: PARAM_31 is last, based on native limits reported by fglrx */
   1292 #define R300_PFS_PARAM_31_X                 0x4DF0
   1293 #define R300_PFS_PARAM_31_Y                 0x4DF4
   1294 #define R300_PFS_PARAM_31_Z                 0x4DF8
   1295 #define R300_PFS_PARAM_31_W                 0x4DFC
   1296 
   1297 /* Notes:
   1298  * - AFAIK fglrx always sets BLEND_UNKNOWN when blending is used in
   1299  *   the application
   1300  * - AFAIK fglrx always sets BLEND_NO_SEPARATE when CBLEND and ABLEND
   1301  *    are set to the same
   1302  *   function (both registers are always set up completely in any case)
   1303  * - Most blend flags are simply copied from R200 and not tested yet
   1304  */
   1305 #define R300_RB3D_CBLEND                    0x4E04
   1306 #define R300_RB3D_ABLEND                    0x4E08
   1307 /* the following only appear in CBLEND */
   1308 #       define R300_BLEND_ENABLE                     (1 << 0)
   1309 #       define R300_BLEND_UNKNOWN                    (3 << 1)
   1310 #       define R300_BLEND_NO_SEPARATE                (1 << 3)
   1311 /* the following are shared between CBLEND and ABLEND */
   1312 #       define R300_FCN_MASK                         (3  << 12)
   1313 #       define R300_COMB_FCN_ADD_CLAMP               (0  << 12)
   1314 #       define R300_COMB_FCN_ADD_NOCLAMP             (1  << 12)
   1315 #       define R300_COMB_FCN_SUB_CLAMP               (2  << 12)
   1316 #       define R300_COMB_FCN_SUB_NOCLAMP             (3  << 12)
   1317 #       define R300_COMB_FCN_MIN                     (4  << 12)
   1318 #       define R300_COMB_FCN_MAX                     (5  << 12)
   1319 #       define R300_COMB_FCN_RSUB_CLAMP              (6  << 12)
   1320 #       define R300_COMB_FCN_RSUB_NOCLAMP            (7  << 12)
   1321 #       define R300_BLEND_GL_ZERO                    (32)
   1322 #       define R300_BLEND_GL_ONE                     (33)
   1323 #       define R300_BLEND_GL_SRC_COLOR               (34)
   1324 #       define R300_BLEND_GL_ONE_MINUS_SRC_COLOR     (35)
   1325 #       define R300_BLEND_GL_DST_COLOR               (36)
   1326 #       define R300_BLEND_GL_ONE_MINUS_DST_COLOR     (37)
   1327 #       define R300_BLEND_GL_SRC_ALPHA               (38)
   1328 #       define R300_BLEND_GL_ONE_MINUS_SRC_ALPHA     (39)
   1329 #       define R300_BLEND_GL_DST_ALPHA               (40)
   1330 #       define R300_BLEND_GL_ONE_MINUS_DST_ALPHA     (41)
   1331 #       define R300_BLEND_GL_SRC_ALPHA_SATURATE      (42)
   1332 #       define R300_BLEND_GL_CONST_COLOR             (43)
   1333 #       define R300_BLEND_GL_ONE_MINUS_CONST_COLOR   (44)
   1334 #       define R300_BLEND_GL_CONST_ALPHA             (45)
   1335 #       define R300_BLEND_GL_ONE_MINUS_CONST_ALPHA   (46)
   1336 #       define R300_BLEND_MASK                       (63)
   1337 #       define R300_SRC_BLEND_SHIFT                  (16)
   1338 #       define R300_DST_BLEND_SHIFT                  (24)
   1339 #define R300_RB3D_BLEND_COLOR               0x4E10
   1340 #define R300_RB3D_COLORMASK                 0x4E0C
   1341 #       define R300_COLORMASK0_B                 (1<<0)
   1342 #       define R300_COLORMASK0_G                 (1<<1)
   1343 #       define R300_COLORMASK0_R                 (1<<2)
   1344 #       define R300_COLORMASK0_A                 (1<<3)
   1345 
   1346 /* gap */
   1347 
   1348 #define R300_RB3D_COLOROFFSET0              0x4E28
   1349 #       define R300_COLOROFFSET_MASK             0xFFFFFFF0 /* GUESS */
   1350 #define R300_RB3D_COLOROFFSET1              0x4E2C /* GUESS */
   1351 #define R300_RB3D_COLOROFFSET2              0x4E30 /* GUESS */
   1352 #define R300_RB3D_COLOROFFSET3              0x4E34 /* GUESS */
   1353 
   1354 /* gap */
   1355 
   1356 /* Bit 16: Larger tiles
   1357  * Bit 17: 4x2 tiles
   1358  * Bit 18: Extremely weird tile like, but some pixels duplicated?
   1359  */
   1360 #define R300_RB3D_COLORPITCH0               0x4E38
   1361 #       define R300_COLORPITCH_MASK              0x00001FF8 /* GUESS */
   1362 #       define R300_COLOR_TILE_ENABLE            (1 << 16) /* GUESS */
   1363 #       define R300_COLOR_MICROTILE_ENABLE       (1 << 17) /* GUESS */
   1364 #       define R300_COLOR_MICROTILE_SQUARE_ENABLE (2 << 17)
   1365 #       define R300_COLOR_ENDIAN_NO_SWAP         (0 << 18) /* GUESS */
   1366 #       define R300_COLOR_ENDIAN_WORD_SWAP       (1 << 18) /* GUESS */
   1367 #       define R300_COLOR_ENDIAN_DWORD_SWAP      (2 << 18) /* GUESS */
   1368 #       define R300_COLOR_FORMAT_RGB565          (2 << 22)
   1369 #       define R300_COLOR_FORMAT_ARGB8888        (3 << 22)
   1370 #define R300_RB3D_COLORPITCH1               0x4E3C /* GUESS */
   1371 #define R300_RB3D_COLORPITCH2               0x4E40 /* GUESS */
   1372 #define R300_RB3D_COLORPITCH3               0x4E44 /* GUESS */
   1373 
   1374 #define R300_RB3D_AARESOLVE_OFFSET          0x4E80
   1375 #define R300_RB3D_AARESOLVE_PITCH           0x4E84
   1376 #define R300_RB3D_AARESOLVE_CTL             0x4E88
   1377 /* gap */
   1378 
   1379 /* Guess by Vladimir.
   1380  * Set to 0A before 3D operations, set to 02 afterwards.
   1381  */
   1382 /*#define R300_RB3D_DSTCACHE_CTLSTAT          0x4E4C*/
   1383 #       define R300_RB3D_DSTCACHE_UNKNOWN_02             0x00000002
   1384 #       define R300_RB3D_DSTCACHE_UNKNOWN_0A             0x0000000A
   1385 
   1386 /* gap */
   1387 /* There seems to be no "write only" setting, so use Z-test = ALWAYS
   1388  * for this.
   1389  * Bit (1<<8) is the "test" bit. so plain write is 6  - vd
   1390  */
   1391 #define R300_ZB_CNTL                             0x4F00
   1392 #	define R300_STENCIL_ENABLE		 (1 << 0)
   1393 #	define R300_Z_ENABLE		         (1 << 1)
   1394 #	define R300_Z_WRITE_ENABLE		 (1 << 2)
   1395 #	define R300_Z_SIGNED_COMPARE		 (1 << 3)
   1396 #	define R300_STENCIL_FRONT_BACK		 (1 << 4)
   1397 
   1398 #define R300_ZB_ZSTENCILCNTL                   0x4f04
   1399 	/* functions */
   1400 #	define R300_ZS_NEVER			0
   1401 #	define R300_ZS_LESS			1
   1402 #	define R300_ZS_LEQUAL			2
   1403 #	define R300_ZS_EQUAL			3
   1404 #	define R300_ZS_GEQUAL			4
   1405 #	define R300_ZS_GREATER			5
   1406 #	define R300_ZS_NOTEQUAL			6
   1407 #	define R300_ZS_ALWAYS			7
   1408 #       define R300_ZS_MASK                     7
   1409 	/* operations */
   1410 #	define R300_ZS_KEEP			0
   1411 #	define R300_ZS_ZERO			1
   1412 #	define R300_ZS_REPLACE			2
   1413 #	define R300_ZS_INCR			3
   1414 #	define R300_ZS_DECR			4
   1415 #	define R300_ZS_INVERT			5
   1416 #	define R300_ZS_INCR_WRAP		6
   1417 #	define R300_ZS_DECR_WRAP		7
   1418 #	define R300_Z_FUNC_SHIFT		0
   1419 	/* front and back refer to operations done for front
   1420 	   and back faces, i.e. separate stencil function support */
   1421 #	define R300_S_FRONT_FUNC_SHIFT	        3
   1422 #	define R300_S_FRONT_SFAIL_OP_SHIFT	6
   1423 #	define R300_S_FRONT_ZPASS_OP_SHIFT	9
   1424 #	define R300_S_FRONT_ZFAIL_OP_SHIFT      12
   1425 #	define R300_S_BACK_FUNC_SHIFT           15
   1426 #	define R300_S_BACK_SFAIL_OP_SHIFT       18
   1427 #	define R300_S_BACK_ZPASS_OP_SHIFT       21
   1428 #	define R300_S_BACK_ZFAIL_OP_SHIFT       24
   1429 
   1430 #define R300_ZB_STENCILREFMASK                        0x4f08
   1431 #	define R300_STENCILREF_SHIFT       0
   1432 #	define R300_STENCILREF_MASK        0x000000ff
   1433 #	define R300_STENCILMASK_SHIFT      8
   1434 #	define R300_STENCILMASK_MASK       0x0000ff00
   1435 #	define R300_STENCILWRITEMASK_SHIFT 16
   1436 #	define R300_STENCILWRITEMASK_MASK  0x00ff0000
   1437 
   1438 /* gap */
   1439 
   1440 #define R300_ZB_FORMAT                             0x4f10
   1441 #	define R300_DEPTHFORMAT_16BIT_INT_Z   (0 << 0)
   1442 #	define R300_DEPTHFORMAT_16BIT_13E3    (1 << 0)
   1443 #	define R300_DEPTHFORMAT_24BIT_INT_Z_8BIT_STENCIL   (2 << 0)
   1444 /* reserved up to (15 << 0) */
   1445 #	define R300_INVERT_13E3_LEADING_ONES  (0 << 4)
   1446 #	define R300_INVERT_13E3_LEADING_ZEROS (1 << 4)
   1447 
   1448 #define R300_ZB_ZTOP                             0x4F14
   1449 #	define R300_ZTOP_DISABLE                 (0 << 0)
   1450 #	define R300_ZTOP_ENABLE                  (1 << 0)
   1451 
   1452 /* gap */
   1453 
   1454 #define R300_ZB_ZCACHE_CTLSTAT            0x4f18
   1455 #       define R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_NO_EFFECT      (0 << 0)
   1456 #       define R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE (1 << 0)
   1457 #       define R300_ZB_ZCACHE_CTLSTAT_ZC_FREE_NO_EFFECT       (0 << 1)
   1458 #       define R300_ZB_ZCACHE_CTLSTAT_ZC_FREE_FREE            (1 << 1)
   1459 #       define R300_ZB_ZCACHE_CTLSTAT_ZC_BUSY_IDLE            (0 << 31)
   1460 #       define R300_ZB_ZCACHE_CTLSTAT_ZC_BUSY_BUSY            (1 << 31)
   1461 
   1462 #define R300_ZB_BW_CNTL                     0x4f1c
   1463 #	define R300_HIZ_DISABLE                              (0 << 0)
   1464 #	define R300_HIZ_ENABLE                               (1 << 0)
   1465 #	define R300_HIZ_MIN                                  (0 << 1)
   1466 #	define R300_HIZ_MAX                                  (1 << 1)
   1467 #	define R300_FAST_FILL_DISABLE                        (0 << 2)
   1468 #	define R300_FAST_FILL_ENABLE                         (1 << 2)
   1469 #	define R300_RD_COMP_DISABLE                          (0 << 3)
   1470 #	define R300_RD_COMP_ENABLE                           (1 << 3)
   1471 #	define R300_WR_COMP_DISABLE                          (0 << 4)
   1472 #	define R300_WR_COMP_ENABLE                           (1 << 4)
   1473 #	define R300_ZB_CB_CLEAR_RMW                          (0 << 5)
   1474 #	define R300_ZB_CB_CLEAR_CACHE_LINEAR                 (1 << 5)
   1475 #	define R300_FORCE_COMPRESSED_STENCIL_VALUE_DISABLE   (0 << 6)
   1476 #	define R300_FORCE_COMPRESSED_STENCIL_VALUE_ENABLE    (1 << 6)
   1477 
   1478 #	define R500_ZEQUAL_OPTIMIZE_ENABLE                   (0 << 7)
   1479 #	define R500_ZEQUAL_OPTIMIZE_DISABLE                  (1 << 7)
   1480 #	define R500_SEQUAL_OPTIMIZE_ENABLE                   (0 << 8)
   1481 #	define R500_SEQUAL_OPTIMIZE_DISABLE                  (1 << 8)
   1482 
   1483 #	define R500_BMASK_ENABLE                             (0 << 10)
   1484 #	define R500_BMASK_DISABLE                            (1 << 10)
   1485 #	define R500_HIZ_EQUAL_REJECT_DISABLE                 (0 << 11)
   1486 #	define R500_HIZ_EQUAL_REJECT_ENABLE                  (1 << 11)
   1487 #	define R500_HIZ_FP_EXP_BITS_DISABLE                  (0 << 12)
   1488 #	define R500_HIZ_FP_EXP_BITS_1                        (1 << 12)
   1489 #	define R500_HIZ_FP_EXP_BITS_2                        (2 << 12)
   1490 #	define R500_HIZ_FP_EXP_BITS_3                        (3 << 12)
   1491 #	define R500_HIZ_FP_EXP_BITS_4                        (4 << 12)
   1492 #	define R500_HIZ_FP_EXP_BITS_5                        (5 << 12)
   1493 #	define R500_HIZ_FP_INVERT_LEADING_ONES               (0 << 15)
   1494 #	define R500_HIZ_FP_INVERT_LEADING_ZEROS              (1 << 15)
   1495 #	define R500_TILE_OVERWRITE_RECOMPRESSION_ENABLE      (0 << 16)
   1496 #	define R500_TILE_OVERWRITE_RECOMPRESSION_DISABLE     (1 << 16)
   1497 #	define R500_CONTIGUOUS_6XAA_SAMPLES_ENABLE           (0 << 17)
   1498 #	define R500_CONTIGUOUS_6XAA_SAMPLES_DISABLE          (1 << 17)
   1499 #	define R500_PEQ_PACKING_DISABLE                      (0 << 18)
   1500 #	define R500_PEQ_PACKING_ENABLE                       (1 << 18)
   1501 #	define R500_COVERED_PTR_MASKING_DISABLE              (0 << 18)
   1502 #	define R500_COVERED_PTR_MASKING_ENABLE               (1 << 18)
   1503 
   1504 
   1505 /* gap */
   1506 
   1507 /* Z Buffer Address Offset.
   1508  * Bits 31 to 5 are used for aligned Z buffer address offset for macro tiles.
   1509  */
   1510 #define R300_ZB_DEPTHOFFSET               0x4f20
   1511 
   1512 /* Z Buffer Pitch and Endian Control */
   1513 #define R300_ZB_DEPTHPITCH                0x4f24
   1514 #       define R300_DEPTHPITCH_MASK              0x00003FFC
   1515 #       define R300_DEPTHMACROTILE_DISABLE      (0 << 16)
   1516 #       define R300_DEPTHMACROTILE_ENABLE       (1 << 16)
   1517 #       define R300_DEPTHMICROTILE_LINEAR       (0 << 17)
   1518 #       define R300_DEPTHMICROTILE_TILED        (1 << 17)
   1519 #       define R300_DEPTHMICROTILE_TILED_SQUARE (2 << 17)
   1520 #       define R300_DEPTHENDIAN_NO_SWAP         (0 << 18)
   1521 #       define R300_DEPTHENDIAN_WORD_SWAP       (1 << 18)
   1522 #       define R300_DEPTHENDIAN_DWORD_SWAP      (2 << 18)
   1523 #       define R300_DEPTHENDIAN_HALF_DWORD_SWAP (3 << 18)
   1524 
   1525 /* Z Buffer Clear Value */
   1526 #define R300_ZB_DEPTHCLEARVALUE                  0x4f28
   1527 
   1528 #define R300_ZB_ZMASK_OFFSET			 0x4f30
   1529 #define R300_ZB_ZMASK_PITCH			 0x4f34
   1530 #define R300_ZB_ZMASK_WRINDEX			 0x4f38
   1531 #define R300_ZB_ZMASK_DWORD			 0x4f3c
   1532 #define R300_ZB_ZMASK_RDINDEX			 0x4f40
   1533 
   1534 /* Hierarchical Z Memory Offset */
   1535 #define R300_ZB_HIZ_OFFSET                       0x4f44
   1536 
   1537 /* Hierarchical Z Write Index */
   1538 #define R300_ZB_HIZ_WRINDEX                      0x4f48
   1539 
   1540 /* Hierarchical Z Data */
   1541 #define R300_ZB_HIZ_DWORD                        0x4f4c
   1542 
   1543 /* Hierarchical Z Read Index */
   1544 #define R300_ZB_HIZ_RDINDEX                      0x4f50
   1545 
   1546 /* Hierarchical Z Pitch */
   1547 #define R300_ZB_HIZ_PITCH                        0x4f54
   1548 
   1549 /* Z Buffer Z Pass Counter Data */
   1550 #define R300_ZB_ZPASS_DATA                       0x4f58
   1551 
   1552 /* Z Buffer Z Pass Counter Address */
   1553 #define R300_ZB_ZPASS_ADDR                       0x4f5c
   1554 
   1555 /* Depth buffer X and Y coordinate offset */
   1556 #define R300_ZB_DEPTHXY_OFFSET                   0x4f60
   1557 #	define R300_DEPTHX_OFFSET_SHIFT  1
   1558 #	define R300_DEPTHX_OFFSET_MASK   0x000007FE
   1559 #	define R300_DEPTHY_OFFSET_SHIFT  17
   1560 #	define R300_DEPTHY_OFFSET_MASK   0x07FE0000
   1561 
   1562 /* Sets the fifo sizes */
   1563 #define R500_ZB_FIFO_SIZE                        0x4fd0
   1564 #	define R500_OP_FIFO_SIZE_FULL   (0 << 0)
   1565 #	define R500_OP_FIFO_SIZE_HALF   (1 << 0)
   1566 #	define R500_OP_FIFO_SIZE_QUATER (2 << 0)
   1567 #	define R500_OP_FIFO_SIZE_EIGTHS (4 << 0)
   1568 
   1569 /* Stencil Reference Value and Mask for backfacing quads */
   1570 /* R300_ZB_STENCILREFMASK handles front face */
   1571 #define R500_ZB_STENCILREFMASK_BF                0x4fd4
   1572 #	define R500_STENCILREF_SHIFT       0
   1573 #	define R500_STENCILREF_MASK        0x000000ff
   1574 #	define R500_STENCILMASK_SHIFT      8
   1575 #	define R500_STENCILMASK_MASK       0x0000ff00
   1576 #	define R500_STENCILWRITEMASK_SHIFT 16
   1577 #	define R500_STENCILWRITEMASK_MASK  0x00ff0000
   1578 
   1579 /* BEGIN: Vertex program instruction set */
   1580 
   1581 /* Every instruction is four dwords long:
   1582  *  DWORD 0: output and opcode
   1583  *  DWORD 1: first argument
   1584  *  DWORD 2: second argument
   1585  *  DWORD 3: third argument
   1586  *
   1587  * Notes:
   1588  *  - ABS r, a is implemented as MAX r, a, -a
   1589  *  - MOV is implemented as ADD to zero
   1590  *  - XPD is implemented as MUL + MAD
   1591  *  - FLR is implemented as FRC + ADD
   1592  *  - apparently, fglrx tries to schedule instructions so that there is at
   1593  *    least one instruction between the write to a temporary and the first
   1594  *    read from said temporary; however, violations of this scheduling are
   1595  *    allowed
   1596  *  - register indices seem to be unrelated with OpenGL aliasing to
   1597  *    conventional state
   1598  *  - only one attribute and one parameter can be loaded at a time; however,
   1599  *    the same attribute/parameter can be used for more than one argument
   1600  *  - the second software argument for POW is the third hardware argument
   1601  *    (no idea why)
   1602  *  - MAD with only temporaries as input seems to use VPI_OUT_SELECT_MAD_2
   1603  *
   1604  * There is some magic surrounding LIT:
   1605  *   The single argument is replicated across all three inputs, but swizzled:
   1606  *     First argument: xyzy
   1607  *     Second argument: xyzx
   1608  *     Third argument: xyzw
   1609  *   Whenever the result is used later in the fragment program, fglrx forces
   1610  *   x and w to be 1.0 in the input selection; I don't know whether this is
   1611  *   strictly necessary
   1612  */
   1613 #define R300_VPI_OUT_OP_DOT                     (1 << 0)
   1614 #define R300_VPI_OUT_OP_MUL                     (2 << 0)
   1615 #define R300_VPI_OUT_OP_ADD                     (3 << 0)
   1616 #define R300_VPI_OUT_OP_MAD                     (4 << 0)
   1617 #define R300_VPI_OUT_OP_DST                     (5 << 0)
   1618 #define R300_VPI_OUT_OP_FRC                     (6 << 0)
   1619 #define R300_VPI_OUT_OP_MAX                     (7 << 0)
   1620 #define R300_VPI_OUT_OP_MIN                     (8 << 0)
   1621 #define R300_VPI_OUT_OP_SGE                     (9 << 0)
   1622 #define R300_VPI_OUT_OP_SLT                     (10 << 0)
   1623 	/* Used in GL_POINT_DISTANCE_ATTENUATION_ARB, vector(scalar, vector) */
   1624 #define R300_VPI_OUT_OP_UNK12                   (12 << 0)
   1625 #define R300_VPI_OUT_OP_ARL                     (13 << 0)
   1626 #define R300_VPI_OUT_OP_EXP                     (65 << 0)
   1627 #define R300_VPI_OUT_OP_LOG                     (66 << 0)
   1628 	/* Used in fog computations, scalar(scalar) */
   1629 #define R300_VPI_OUT_OP_UNK67                   (67 << 0)
   1630 #define R300_VPI_OUT_OP_LIT                     (68 << 0)
   1631 #define R300_VPI_OUT_OP_POW                     (69 << 0)
   1632 #define R300_VPI_OUT_OP_RCP                     (70 << 0)
   1633 #define R300_VPI_OUT_OP_RSQ                     (72 << 0)
   1634 	/* Used in GL_POINT_DISTANCE_ATTENUATION_ARB, scalar(scalar) */
   1635 #define R300_VPI_OUT_OP_UNK73                   (73 << 0)
   1636 #define R300_VPI_OUT_OP_EX2                     (75 << 0)
   1637 #define R300_VPI_OUT_OP_LG2                     (76 << 0)
   1638 #define R300_VPI_OUT_OP_MAD_2                   (128 << 0)
   1639 	/* all temps, vector(scalar, vector, vector) */
   1640 #define R300_VPI_OUT_OP_UNK129                  (129 << 0)
   1641 
   1642 #define R300_VPI_OUT_REG_CLASS_TEMPORARY        (0 << 8)
   1643 #define R300_VPI_OUT_REG_CLASS_ADDR             (1 << 8)
   1644 #define R300_VPI_OUT_REG_CLASS_RESULT           (2 << 8)
   1645 #define R300_VPI_OUT_REG_CLASS_MASK             (31 << 8)
   1646 
   1647 #define R300_VPI_OUT_REG_INDEX_SHIFT            13
   1648 	/* GUESS based on fglrx native limits */
   1649 #define R300_VPI_OUT_REG_INDEX_MASK             (31 << 13)
   1650 
   1651 #define R300_VPI_OUT_WRITE_X                    (1 << 20)
   1652 #define R300_VPI_OUT_WRITE_Y                    (1 << 21)
   1653 #define R300_VPI_OUT_WRITE_Z                    (1 << 22)
   1654 #define R300_VPI_OUT_WRITE_W                    (1 << 23)
   1655 
   1656 #define R300_VPI_IN_REG_CLASS_TEMPORARY         (0 << 0)
   1657 #define R300_VPI_IN_REG_CLASS_ATTRIBUTE         (1 << 0)
   1658 #define R300_VPI_IN_REG_CLASS_PARAMETER         (2 << 0)
   1659 #define R300_VPI_IN_REG_CLASS_NONE              (9 << 0)
   1660 #define R300_VPI_IN_REG_CLASS_MASK              (31 << 0)
   1661 
   1662 #define R300_VPI_IN_REG_INDEX_SHIFT             5
   1663 	/* GUESS based on fglrx native limits */
   1664 #define R300_VPI_IN_REG_INDEX_MASK              (255 << 5)
   1665 
   1666 /* The R300 can select components from the input register arbitrarily.
   1667  * Use the following constants, shifted by the component shift you
   1668  * want to select
   1669  */
   1670 #define R300_VPI_IN_SELECT_X    0
   1671 #define R300_VPI_IN_SELECT_Y    1
   1672 #define R300_VPI_IN_SELECT_Z    2
   1673 #define R300_VPI_IN_SELECT_W    3
   1674 #define R300_VPI_IN_SELECT_ZERO 4
   1675 #define R300_VPI_IN_SELECT_ONE  5
   1676 #define R300_VPI_IN_SELECT_MASK 7
   1677 
   1678 #define R300_VPI_IN_X_SHIFT                     13
   1679 #define R300_VPI_IN_Y_SHIFT                     16
   1680 #define R300_VPI_IN_Z_SHIFT                     19
   1681 #define R300_VPI_IN_W_SHIFT                     22
   1682 
   1683 #define R300_VPI_IN_NEG_X                       (1 << 25)
   1684 #define R300_VPI_IN_NEG_Y                       (1 << 26)
   1685 #define R300_VPI_IN_NEG_Z                       (1 << 27)
   1686 #define R300_VPI_IN_NEG_W                       (1 << 28)
   1687 /* END: Vertex program instruction set */
   1688 
   1689 /* BEGIN: Packet 3 commands */
   1690 
   1691 /* A primitive emission dword. */
   1692 #define R300_PRIM_TYPE_NONE                     (0 << 0)
   1693 #define R300_PRIM_TYPE_POINT                    (1 << 0)
   1694 #define R300_PRIM_TYPE_LINE                     (2 << 0)
   1695 #define R300_PRIM_TYPE_LINE_STRIP               (3 << 0)
   1696 #define R300_PRIM_TYPE_TRI_LIST                 (4 << 0)
   1697 #define R300_PRIM_TYPE_TRI_FAN                  (5 << 0)
   1698 #define R300_PRIM_TYPE_TRI_STRIP                (6 << 0)
   1699 #define R300_PRIM_TYPE_TRI_TYPE2                (7 << 0)
   1700 #define R300_PRIM_TYPE_RECT_LIST                (8 << 0)
   1701 #define R300_PRIM_TYPE_3VRT_POINT_LIST          (9 << 0)
   1702 #define R300_PRIM_TYPE_3VRT_LINE_LIST           (10 << 0)
   1703 	/* GUESS (based on r200) */
   1704 #define R300_PRIM_TYPE_POINT_SPRITES            (11 << 0)
   1705 #define R300_PRIM_TYPE_LINE_LOOP                (12 << 0)
   1706 #define R300_PRIM_TYPE_QUADS                    (13 << 0)
   1707 #define R300_PRIM_TYPE_QUAD_STRIP               (14 << 0)
   1708 #define R300_PRIM_TYPE_POLYGON                  (15 << 0)
   1709 #define R300_PRIM_TYPE_MASK                     0xF
   1710 #define R300_PRIM_WALK_IND                      (1 << 4)
   1711 #define R300_PRIM_WALK_LIST                     (2 << 4)
   1712 #define R300_PRIM_WALK_RING                     (3 << 4)
   1713 #define R300_PRIM_WALK_MASK                     (3 << 4)
   1714 	/* GUESS (based on r200) */
   1715 #define R300_PRIM_COLOR_ORDER_BGRA              (0 << 6)
   1716 #define R300_PRIM_COLOR_ORDER_RGBA              (1 << 6)
   1717 #define R300_PRIM_NUM_VERTICES_SHIFT            16
   1718 #define R300_PRIM_NUM_VERTICES_MASK             0xffff
   1719 
   1720 /* Draw a primitive from vertex data in arrays loaded via 3D_LOAD_VBPNTR.
   1721  * Two parameter dwords:
   1722  * 0. The first parameter appears to be always 0
   1723  * 1. The second parameter is a standard primitive emission dword.
   1724  */
   1725 #define R300_PACKET3_3D_DRAW_VBUF           0x00002800
   1726 
   1727 /* Specify the full set of vertex arrays as (address, stride).
   1728  * The first parameter is the number of vertex arrays specified.
   1729  * The rest of the command is a variable length list of blocks, where
   1730  * each block is three dwords long and specifies two arrays.
   1731  * The first dword of a block is split into two words, the lower significant
   1732  * word refers to the first array, the more significant word to the second
   1733  * array in the block.
   1734  * The low byte of each word contains the size of an array entry in dwords,
   1735  * the high byte contains the stride of the array.
   1736  * The second dword of a block contains the pointer to the first array,
   1737  * the third dword of a block contains the pointer to the second array.
   1738  * Note that if the total number of arrays is odd, the third dword of
   1739  * the last block is omitted.
   1740  */
   1741 #define R300_PACKET3_3D_LOAD_VBPNTR         0x00002F00
   1742 
   1743 #define R300_PACKET3_INDX_BUFFER            0x00003300
   1744 #    define R300_EB_UNK1_SHIFT                      24
   1745 #    define R300_EB_UNK1                    (0x80<<24)
   1746 #    define R300_EB_UNK2                        0x0810
   1747 #define R300_PACKET3_3D_DRAW_VBUF_2         0x00003400
   1748 #define R300_PACKET3_3D_DRAW_INDX_2         0x00003600
   1749 
   1750 /* END: Packet 3 commands */
   1751 
   1752 
   1753 /* Color formats for 2d packets
   1754  */
   1755 #define R300_CP_COLOR_FORMAT_CI8	2
   1756 #define R300_CP_COLOR_FORMAT_ARGB1555	3
   1757 #define R300_CP_COLOR_FORMAT_RGB565	4
   1758 #define R300_CP_COLOR_FORMAT_ARGB8888	6
   1759 #define R300_CP_COLOR_FORMAT_RGB332	7
   1760 #define R300_CP_COLOR_FORMAT_RGB8	9
   1761 #define R300_CP_COLOR_FORMAT_ARGB4444	15
   1762 
   1763 /*
   1764  * CP type-3 packets
   1765  */
   1766 #define R300_CP_CMD_BITBLT_MULTI	0xC0009B00
   1767 
   1768 #define R500_VAP_INDEX_OFFSET		0x208c
   1769 
   1770 #define R500_GA_US_VECTOR_INDEX         0x4250
   1771 #define R500_GA_US_VECTOR_DATA          0x4254
   1772 
   1773 #define R500_RS_IP_0                    0x4074
   1774 #define R500_RS_INST_0                  0x4320
   1775 
   1776 #define R500_US_CONFIG                  0x4600
   1777 
   1778 #define R500_US_FC_CTRL			0x4624
   1779 #define R500_US_CODE_ADDR		0x4630
   1780 
   1781 #define R500_RB3D_COLOR_CLEAR_VALUE_AR  0x46c0
   1782 #define R500_RB3D_CONSTANT_COLOR_AR     0x4ef8
   1783 
   1784 #define R300_SU_REG_DEST                0x42c8
   1785 #define RV530_FG_ZBREG_DEST             0x4be8
   1786 #define R300_ZB_ZPASS_DATA              0x4f58
   1787 #define R300_ZB_ZPASS_ADDR              0x4f5c
   1788 
   1789 #endif /* _R300_REG_H */
   1790