r300: add half_float_vertex support

[mesa.git] / src / gallium / drivers / r300 / r300_reg.h

/**************************************************************************

Copyright (C) 2004-2005 Nicolai Haehnle et al.

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/* *INDENT-OFF* */

#ifndef _R300_REG_H
#define _R300_REG_H

#define R300_MC_INIT_MISC_LAT_TIMER     0x180
#       define R300_MC_MISC__MC_CPR_INIT_LAT_SHIFT      0
#       define R300_MC_MISC__MC_VF_INIT_LAT_SHIFT       4
#       define R300_MC_MISC__MC_DISP0R_INIT_LAT_SHIFT   8
#       define R300_MC_MISC__MC_DISP1R_INIT_LAT_SHIFT   12
#       define R300_MC_MISC__MC_FIXED_INIT_LAT_SHIFT    16
#       define R300_MC_MISC__MC_E2R_INIT_LAT_SHIFT      20
#       define R300_MC_MISC__MC_SAME_PAGE_PRIO_SHIFT    24
#       define R300_MC_MISC__MC_GLOBW_INIT_LAT_SHIFT    28


#define R300_MC_INIT_GFX_LAT_TIMER      0x154
#       define R300_MC_MISC__MC_G3D0R_INIT_LAT_SHIFT    0
#       define R300_MC_MISC__MC_G3D1R_INIT_LAT_SHIFT    4
#       define R300_MC_MISC__MC_G3D2R_INIT_LAT_SHIFT    8
#       define R300_MC_MISC__MC_G3D3R_INIT_LAT_SHIFT    12
#       define R300_MC_MISC__MC_TX0R_INIT_LAT_SHIFT     16
#       define R300_MC_MISC__MC_TX1R_INIT_LAT_SHIFT     20
#       define R300_MC_MISC__MC_GLOBR_INIT_LAT_SHIFT    24
#       define R300_MC_MISC__MC_GLOBW_FULL_LAT_SHIFT    28

/*
 * This file contains registers and constants for the R300. They have been
 * found mostly by examining command buffers captured using glxtest, as well
 * as by extrapolating some known registers and constants from the R200.
 * I am fairly certain that they are correct unless stated otherwise
 * in comments.
 */

#define R300_SE_VPORT_XSCALE                0x1D98
#define R300_SE_VPORT_XOFFSET               0x1D9C
#define R300_SE_VPORT_YSCALE                0x1DA0
#define R300_SE_VPORT_YOFFSET               0x1DA4
#define R300_SE_VPORT_ZSCALE                0x1DA8
#define R300_SE_VPORT_ZOFFSET               0x1DAC

#define R300_VAP_PORT_IDX0                  0x2040
/*
 * Vertex Array Processing (VAP) Control
 */
#define R300_VAP_CNTL   0x2080
#       define R300_PVS_NUM_SLOTS_SHIFT                 0
#       define R300_PVS_NUM_CNTLRS_SHIFT                4
#       define R300_PVS_NUM_FPUS_SHIFT                  8
#       define R300_VF_MAX_VTX_NUM_SHIFT                18
#       define R300_PVS_NUM_SLOTS(x)                    ((x) << 0)
#       define R300_PVS_NUM_CNTLRS(x)                   ((x) << 4)
#       define R300_PVS_NUM_FPUS(x)                     ((x) << 8)
#       define R300_PVS_VF_MAX_VTX_NUM(x)               ((x) << 18)
#       define R300_GL_CLIP_SPACE_DEF                   (0 << 22)
#       define R300_DX_CLIP_SPACE_DEF                   (1 << 22)
#       define R500_TCL_STATE_OPTIMIZATION              (1 << 23)

/* This register is written directly and also starts data section
 * in many 3d CP_PACKET3's
 */
#define R300_VAP_VF_CNTL        0x2084
#       define  R300_VAP_VF_CNTL__PRIM_TYPE__SHIFT              0
#       define  R300_VAP_VF_CNTL__PRIM_NONE                     (0<<0)
#       define  R300_VAP_VF_CNTL__PRIM_POINTS                   (1<<0)
#       define  R300_VAP_VF_CNTL__PRIM_LINES                    (2<<0)
#       define  R300_VAP_VF_CNTL__PRIM_LINE_STRIP               (3<<0)
#       define  R300_VAP_VF_CNTL__PRIM_TRIANGLES                (4<<0)
#       define  R300_VAP_VF_CNTL__PRIM_TRIANGLE_FAN             (5<<0)
#       define  R300_VAP_VF_CNTL__PRIM_TRIANGLE_STRIP           (6<<0)
#       define  R300_VAP_VF_CNTL__PRIM_LINE_LOOP                (12<<0)
#       define  R300_VAP_VF_CNTL__PRIM_QUADS                    (13<<0)
#       define  R300_VAP_VF_CNTL__PRIM_QUAD_STRIP               (14<<0)
#       define  R300_VAP_VF_CNTL__PRIM_POLYGON                  (15<<0)

#       define  R300_VAP_VF_CNTL__PRIM_WALK__SHIFT              4
        /* State based - direct writes to registers trigger vertex
           generation */
#       define  R300_VAP_VF_CNTL__PRIM_WALK_STATE_BASED         (0<<4)
#       define  R300_VAP_VF_CNTL__PRIM_WALK_INDICES             (1<<4)
#       define  R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_LIST         (2<<4)
#       define  R300_VAP_VF_CNTL__PRIM_WALK_VERTEX_EMBEDDED     (3<<4)

        /* I don't think I saw these three used.. */
#       define  R300_VAP_VF_CNTL__COLOR_ORDER__SHIFT            6
#       define  R300_VAP_VF_CNTL__TCL_OUTPUT_CTL_ENA__SHIFT     9
#       define  R300_VAP_VF_CNTL__PROG_STREAM_ENA__SHIFT        10

        /* index size - when not set the indices are assumed to be 16 bit */
#       define  R300_VAP_VF_CNTL__INDEX_SIZE_32bit              (1<<11)
        /* number of vertices */
#       define  R300_VAP_VF_CNTL__NUM_VERTICES__SHIFT           16

#define R500_VAP_INDEX_OFFSET               0x208c

#define R300_VAP_OUTPUT_VTX_FMT_0           0x2090
#       define R300_VAP_OUTPUT_VTX_FMT_0__POS_PRESENT     (1<<0)
#       define R300_VAP_OUTPUT_VTX_FMT_0__COLOR_0_PRESENT (1<<1)
#       define R300_VAP_OUTPUT_VTX_FMT_0__COLOR_1_PRESENT (1<<2)
#       define R300_VAP_OUTPUT_VTX_FMT_0__COLOR_2_PRESENT (1<<3)
#       define R300_VAP_OUTPUT_VTX_FMT_0__COLOR_3_PRESENT (1<<4)
#       define R300_VAP_OUTPUT_VTX_FMT_0__PT_SIZE_PRESENT (1<<16)

#define R300_VAP_OUTPUT_VTX_FMT_1           0x2094
        /* each of the following is 3 bits wide, specifies number
           of components */
#       define R300_VAP_OUTPUT_VTX_FMT_1__TEX_0_COMP_CNT_SHIFT 0
#       define R300_VAP_OUTPUT_VTX_FMT_1__TEX_1_COMP_CNT_SHIFT 3
#       define R300_VAP_OUTPUT_VTX_FMT_1__TEX_2_COMP_CNT_SHIFT 6
#       define R300_VAP_OUTPUT_VTX_FMT_1__TEX_3_COMP_CNT_SHIFT 9
#       define R300_VAP_OUTPUT_VTX_FMT_1__TEX_4_COMP_CNT_SHIFT 12
#       define R300_VAP_OUTPUT_VTX_FMT_1__TEX_5_COMP_CNT_SHIFT 15
#       define R300_VAP_OUTPUT_VTX_FMT_1__TEX_6_COMP_CNT_SHIFT 18
#       define R300_VAP_OUTPUT_VTX_FMT_1__TEX_7_COMP_CNT_SHIFT 21
#       define R300_VAP_OUTPUT_VTX_FMT_1__NOT_PRESENT  0
#       define R300_VAP_OUTPUT_VTX_FMT_1__1_COMPONENT  1
#       define R300_VAP_OUTPUT_VTX_FMT_1__2_COMPONENTS 2
#       define R300_VAP_OUTPUT_VTX_FMT_1__3_COMPONENTS 3
#       define R300_VAP_OUTPUT_VTX_FMT_1__4_COMPONENTS 4

#define R300_VAP_VPORT_XSCALE                     0x2098
#define R300_VAP_VPORT_XOFFSET                    0x209c
#define R300_VAP_VPORT_YSCALE                     0x20a0
#define R300_VAP_VPORT_YOFFSET                    0x20a4
#define R300_VAP_VPORT_ZSCALE                     0x20a8
#define R300_VAP_VPORT_ZOFFSET                    0x20ac

#define R300_VAP_VTE_CNTL                         0x20b0
#define R300_SE_VTE_CNTL R300_VAP_VTE_CNTL
#   define R300_VPORT_X_SCALE_ENA                           (1 << 0)
#   define R300_VPORT_X_OFFSET_ENA                          (1 << 1)
#   define R300_VPORT_Y_SCALE_ENA                           (1 << 2)
#   define R300_VPORT_Y_OFFSET_ENA                          (1 << 3)
#   define R300_VPORT_Z_SCALE_ENA                           (1 << 4)
#   define R300_VPORT_Z_OFFSET_ENA                          (1 << 5)
#   define R300_VTX_XY_FMT                                  (1 << 8)
#   define R300_VTX_Z_FMT                                   (1 << 9)
#   define R300_VTX_W0_FMT                                  (1 << 10)
#   define R300_SERIAL_PROC_ENA                             (1 << 11)

#define R300_VAP_VTX_SIZE               0x20b4

/* BEGIN: Vertex data assembly - lots of uncertainties */

/* gap */

/* Maximum Vertex Indx Clamp */
#define R300_VAP_VF_MAX_VTX_INDX         0x2134
/* Minimum Vertex Indx Clamp */
#define R300_VAP_VF_MIN_VTX_INDX         0x2138

/** Vertex assembler/processor control status */
#define R300_VAP_CNTL_STATUS              0x2140
/* No swap at all (default) */
#       define R300_VC_NO_SWAP                  (0 << 0)
/* 16-bit swap: 0xAABBCCDD becomes 0xBBAADDCC */
#       define R300_VC_16BIT_SWAP               (1 << 0)
/* 32-bit swap: 0xAABBCCDD becomes 0xDDCCBBAA */
#       define R300_VC_32BIT_SWAP               (2 << 0)
/* Half-dword swap: 0xAABBCCDD becomes 0xCCDDAABB */
#       define R300_VC_HALF_DWORD_SWAP          (3 << 0)
/* The TCL engine will not be used (as it is logically or even physically removed) */
#       define R300_VAP_TCL_BYPASS              (1 << 8)
/* Read only flag if TCL engine is busy. */
#       define R300_VAP_PVS_BUSY                (1 << 11)
/* TODO: gap for MAX_MPS */
/* Read only flag if the vertex store is busy. */
#       define R300_VAP_VS_BUSY                 (1 << 24)
/* Read only flag if the reciprocal engine is busy. */
#       define R300_VAP_RCP_BUSY                (1 << 25)
/* Read only flag if the viewport transform engine is busy. */
#       define R300_VAP_VTE_BUSY                (1 << 26)
/* Read only flag if the memory interface unit is busy. */
#       define R300_VAP_MUI_BUSY                (1 << 27)
/* Read only flag if the vertex cache is busy. */
#       define R300_VAP_VC_BUSY                 (1 << 28)
/* Read only flag if the vertex fetcher is busy. */
#       define R300_VAP_VF_BUSY                 (1 << 29)
/* Read only flag if the register pipeline is busy. */
#       define R300_VAP_REGPIPE_BUSY            (1 << 30)
/* Read only flag if the VAP engine is busy. */
#       define R300_VAP_VAP_BUSY                (1 << 31)

/* gap */

/* Where do we get our vertex data?
 *
 * Vertex data either comes either from immediate mode registers or from
 * vertex arrays.
 * There appears to be no mixed mode (though we can force the pitch of
 * vertex arrays to 0, effectively reusing the same element over and over
 * again).
 *
 * Immediate mode is controlled by the INPUT_CNTL registers. I am not sure
 * if these registers influence vertex array processing.
 *
 * Vertex arrays are controlled via the 3D_LOAD_VBPNTR packet3.
 *
 * In both cases, vertex attributes are then passed through INPUT_ROUTE.
 *
 * Beginning with INPUT_ROUTE_0_0 is a list of WORDs that route vertex data
 * into the vertex processor's input registers.
 * The first word routes the first input, the second word the second, etc.
 * The corresponding input is routed into the register with the given index.
 * The list is ended by a word with INPUT_ROUTE_END set.
 *
 * Always set COMPONENTS_4 in immediate mode.
 */

#define R300_VAP_PROG_STREAM_CNTL_0                     0x2150
#       define R300_DATA_TYPE_0_SHIFT                   0
#       define R300_DATA_TYPE_FLOAT_1                   0
#       define R300_DATA_TYPE_FLOAT_2                   1
#       define R300_DATA_TYPE_FLOAT_3                   2
#       define R300_DATA_TYPE_FLOAT_4                   3
#       define R300_DATA_TYPE_BYTE                      4
#       define R300_DATA_TYPE_D3DCOLOR                  5
#       define R300_DATA_TYPE_SHORT_2                   6
#       define R300_DATA_TYPE_SHORT_4                   7
#       define R300_DATA_TYPE_VECTOR_3_TTT              8
#       define R300_DATA_TYPE_VECTOR_3_EET              9
#       define R300_DATA_TYPE_FLOAT_8                   10
#       define R300_DATA_TYPE_FLT16_2                   11
#       define R300_DATA_TYPE_FLT16_4                   12
#       define R300_SKIP_DWORDS_SHIFT                   4
#       define R300_DST_VEC_LOC_SHIFT                   8
#       define R300_LAST_VEC                            (1 << 13)
#       define R300_SIGNED                              (1 << 14)
#       define R300_NORMALIZE                           (1 << 15)
#       define R300_DATA_TYPE_1_SHIFT                   16
#define R300_VAP_PROG_STREAM_CNTL_1                     0x2154
#define R300_VAP_PROG_STREAM_CNTL_2                     0x2158
#define R300_VAP_PROG_STREAM_CNTL_3                     0x215C
#define R300_VAP_PROG_STREAM_CNTL_4                     0x2160
#define R300_VAP_PROG_STREAM_CNTL_5                     0x2164
#define R300_VAP_PROG_STREAM_CNTL_6                     0x2168
#define R300_VAP_PROG_STREAM_CNTL_7                     0x216C
/* gap */

/* Notes:
 *  - always set up to produce at least two attributes:
 *    if vertex program uses only position, fglrx will set normal, too
 *  - INPUT_CNTL_0_COLOR and INPUT_CNTL_COLOR bits are always equal.
 */
#define R300_VAP_VTX_STATE_CNTL               0x2180
#       define R300_COLOR_0_ASSEMBLY_SHIFT    0
#       define R300_SEL_COLOR                 0
#       define R300_SEL_USER_COLOR_0          1
#       define R300_SEL_USER_COLOR_1          2
#       define R300_COLOR_1_ASSEMBLY_SHIFT    2
#       define R300_COLOR_2_ASSEMBLY_SHIFT    4
#       define R300_COLOR_3_ASSEMBLY_SHIFT    6
#       define R300_COLOR_4_ASSEMBLY_SHIFT    8
#       define R300_COLOR_5_ASSEMBLY_SHIFT    10
#       define R300_COLOR_6_ASSEMBLY_SHIFT    12
#       define R300_COLOR_7_ASSEMBLY_SHIFT    14
#       define R300_UPDATE_USER_COLOR_0_ENA   (1 << 16)

/*
 * Each bit in this field applies to the corresponding vector in the VSM
 * memory (i.e. Bit 0 applies to VECTOR_0 (POSITION), etc.). If the bit
 * is set, then the corresponding 4-Dword Vector is output into the Vertex Stream.
 */
#define R300_VAP_VSM_VTX_ASSM               0x2184
#       define R300_INPUT_CNTL_POS               0x00000001
#       define R300_INPUT_CNTL_NORMAL            0x00000002
#       define R300_INPUT_CNTL_COLOR             0x00000004
#       define R300_INPUT_CNTL_TC0               0x00000400
#       define R300_INPUT_CNTL_TC1               0x00000800
#       define R300_INPUT_CNTL_TC2               0x00001000 /* GUESS */
#       define R300_INPUT_CNTL_TC3               0x00002000 /* GUESS */
#       define R300_INPUT_CNTL_TC4               0x00004000 /* GUESS */
#       define R300_INPUT_CNTL_TC5               0x00008000 /* GUESS */
#       define R300_INPUT_CNTL_TC6               0x00010000 /* GUESS */
#       define R300_INPUT_CNTL_TC7               0x00020000 /* GUESS */

/* Programmable Stream Control Signed Normalize Control */
#define R300_VAP_PSC_SGN_NORM_CNTL                0x21dc
#   define SGN_NORM_ZERO                                    0
#   define SGN_NORM_ZERO_CLAMP_MINUS_ONE                    1
#   define SGN_NORM_NO_ZERO                                 2
#   define R300_SGN_NORM_NO_ZERO (SGN_NORM_NO_ZERO | \
        (SGN_NORM_NO_ZERO << 2) | (SGN_NORM_NO_ZERO << 4) | \
        (SGN_NORM_NO_ZERO << 6) | (SGN_NORM_NO_ZERO << 8) | \
        (SGN_NORM_NO_ZERO << 10) | (SGN_NORM_NO_ZERO << 12) | \
        (SGN_NORM_NO_ZERO << 14) | (SGN_NORM_NO_ZERO << 16) | \
        (SGN_NORM_NO_ZERO << 18) | (SGN_NORM_NO_ZERO << 20) | \
        (SGN_NORM_NO_ZERO << 22) | (SGN_NORM_NO_ZERO << 24) | \
        (SGN_NORM_NO_ZERO << 26) | (SGN_NORM_NO_ZERO << 28) | \
        (SGN_NORM_NO_ZERO << 30))

/* gap */

/* Words parallel to INPUT_ROUTE_0; All words that are active in INPUT_ROUTE_0
 * are set to a swizzling bit pattern, other words are 0.
 *
 * In immediate mode, the pattern is always set to xyzw. In vertex array
 * mode, the swizzling pattern is e.g. used to set zw components in texture
 * coordinates with only tweo components.
 */
#define R300_VAP_PROG_STREAM_CNTL_EXT_0                 0x21e0
#       define R300_SWIZZLE0_SHIFT                      0
#       define R300_SWIZZLE_SELECT_X_SHIFT              0
#       define R300_SWIZZLE_SELECT_Y_SHIFT              3
#       define R300_SWIZZLE_SELECT_Z_SHIFT              6
#       define R300_SWIZZLE_SELECT_W_SHIFT              9

#       define R300_SWIZZLE_SELECT_X                    0
#       define R300_SWIZZLE_SELECT_Y                    1
#       define R300_SWIZZLE_SELECT_Z                    2
#       define R300_SWIZZLE_SELECT_W                    3
#       define R300_SWIZZLE_SELECT_FP_ZERO              4
#       define R300_SWIZZLE_SELECT_FP_ONE               5
/* alternate forms for r300_emit.c */
#       define R300_INPUT_ROUTE_SELECT_X    0
#       define R300_INPUT_ROUTE_SELECT_Y    1
#       define R300_INPUT_ROUTE_SELECT_Z    2
#       define R300_INPUT_ROUTE_SELECT_W    3
#       define R300_INPUT_ROUTE_SELECT_ZERO 4
#       define R300_INPUT_ROUTE_SELECT_ONE  5

#       define R300_WRITE_ENA_SHIFT                     12
#       define R300_WRITE_ENA_X                         1
#       define R300_WRITE_ENA_Y                         2
#       define R300_WRITE_ENA_Z                         4
#       define R300_WRITE_ENA_W                         8
#       define R300_SWIZZLE1_SHIFT                      16

#       define R300_VAP_SWIZZLE_X001 \
        ((R300_SWIZZLE_SELECT_X << R300_SWIZZLE_SELECT_X_SHIFT) | \
         (R300_SWIZZLE_SELECT_FP_ZERO << R300_SWIZZLE_SELECT_Y_SHIFT) | \
         (R300_SWIZZLE_SELECT_FP_ZERO << R300_SWIZZLE_SELECT_Z_SHIFT) | \
         (R300_SWIZZLE_SELECT_FP_ONE << R300_SWIZZLE_SELECT_W_SHIFT) | \
         (0xf << R300_WRITE_ENA_SHIFT))

#       define R300_VAP_SWIZZLE_XY01 \
        ((R300_SWIZZLE_SELECT_X << R300_SWIZZLE_SELECT_X_SHIFT) | \
         (R300_SWIZZLE_SELECT_Y << R300_SWIZZLE_SELECT_Y_SHIFT) | \
         (R300_SWIZZLE_SELECT_FP_ZERO << R300_SWIZZLE_SELECT_Z_SHIFT) | \
         (R300_SWIZZLE_SELECT_FP_ONE << R300_SWIZZLE_SELECT_W_SHIFT) | \
         (0xf << R300_WRITE_ENA_SHIFT))

#       define R300_VAP_SWIZZLE_XYZ1 \
        ((R300_SWIZZLE_SELECT_X << R300_SWIZZLE_SELECT_X_SHIFT) | \
         (R300_SWIZZLE_SELECT_Y << R300_SWIZZLE_SELECT_Y_SHIFT) | \
         (R300_SWIZZLE_SELECT_Z << R300_SWIZZLE_SELECT_Z_SHIFT) | \
         (R300_SWIZZLE_SELECT_FP_ONE << R300_SWIZZLE_SELECT_W_SHIFT) | \
         (0xf << R300_WRITE_ENA_SHIFT))

#       define R300_VAP_SWIZZLE_XYZW \
        ((R300_SWIZZLE_SELECT_X << R300_SWIZZLE_SELECT_X_SHIFT) | \
         (R300_SWIZZLE_SELECT_Y << R300_SWIZZLE_SELECT_Y_SHIFT) | \
         (R300_SWIZZLE_SELECT_Z << R300_SWIZZLE_SELECT_Z_SHIFT) | \
         (R300_SWIZZLE_SELECT_W << R300_SWIZZLE_SELECT_W_SHIFT) | \
         (0xf << R300_WRITE_ENA_SHIFT))

#define R300_VAP_PROG_STREAM_CNTL_EXT_1                 0x21e4
#define R300_VAP_PROG_STREAM_CNTL_EXT_2                 0x21e8
#define R300_VAP_PROG_STREAM_CNTL_EXT_3                 0x21ec
#define R300_VAP_PROG_STREAM_CNTL_EXT_4                 0x21f0
#define R300_VAP_PROG_STREAM_CNTL_EXT_5                 0x21f4
#define R300_VAP_PROG_STREAM_CNTL_EXT_6                 0x21f8
#define R300_VAP_PROG_STREAM_CNTL_EXT_7                 0x21fc

/* END: Vertex data assembly */

/* gap */

/* BEGIN: Upload vertex program and data */

/*
 * The programmable vertex shader unit has a memory bank of unknown size
 * that can be written to in 16 byte units by writing the address into
 * UPLOAD_ADDRESS, followed by data in UPLOAD_DATA (multiples of 4 DWORDs).
 *
 * Pointers into the memory bank are always in multiples of 16 bytes.
 *
 * The memory bank is divided into areas with fixed meaning.
 *
 * Starting at address UPLOAD_PROGRAM: Vertex program instructions.
 * Native limits reported by drivers from ATI suggest size 256 (i.e. 4KB),
 * whereas the difference between known addresses suggests size 512.
 *
 * Starting at address UPLOAD_PARAMETERS: Vertex program parameters.
 * Native reported limits and the VPI layout suggest size 256, whereas
 * difference between known addresses suggests size 512.
 *
 * At address UPLOAD_POINTSIZE is a vector (0, 0, ps, 0), where ps is the
 * floating point pointsize. The exact purpose of this state is uncertain,
 * as there is also the R300_RE_POINTSIZE register.
 *
 * Multiple vertex programs and parameter sets can be loaded at once,
 * which could explain the size discrepancy.
 */
#define R300_VAP_PVS_VECTOR_INDX_REG         0x2200
#       define R300_PVS_CODE_START           0
#       define R300_MAX_PVS_CODE_LINES       256
#       define R500_MAX_PVS_CODE_LINES       1024
#       define R300_PVS_CONST_START          512
#       define R500_PVS_CONST_START          1024
#       define R300_MAX_PVS_CONST_VECS       256
#       define R500_MAX_PVS_CONST_VECS       1024
#       define R300_PVS_UCP_START            1024
#       define R500_PVS_UCP_START            1536
#       define R300_POINT_VPORT_SCALE_OFFSET 1030
#       define R500_POINT_VPORT_SCALE_OFFSET 1542
#       define R300_POINT_GEN_TEX_OFFSET     1031
#       define R500_POINT_GEN_TEX_OFFSET     1543

/*
 * These are obsolete defines form r300_context.h, but they might give some
 * clues when investigating the addresses further...
 */
#if 0
#define VSF_DEST_PROGRAM        0x0
#define VSF_DEST_MATRIX0        0x200
#define VSF_DEST_MATRIX1        0x204
#define VSF_DEST_MATRIX2        0x208
#define VSF_DEST_VECTOR0        0x20c
#define VSF_DEST_VECTOR1        0x20d
#define VSF_DEST_UNKNOWN1       0x400
#define VSF_DEST_UNKNOWN2       0x406
#endif

/* gap */

#define R300_VAP_PVS_UPLOAD_DATA            0x2208

/* END: Upload vertex program and data */

/* gap */

/* I do not know the purpose of this register. However, I do know that
 * it is set to 221C_CLEAR for clear operations and to 221C_NORMAL
 * for normal rendering.
 *
 * 2007-11-05: This register is the user clip plane control register, but there
 * also seems to be a rendering mode control; the NORMAL/CLEAR defines.
 *
 * See bug #9871. http://bugs.freedesktop.org/attachment.cgi?id=10672&action=view
 */
#define R300_VAP_CLIP_CNTL                       0x221C
#       define R300_VAP_UCP_ENABLE_0             (1 << 0)
#       define R300_VAP_UCP_ENABLE_1             (1 << 1)
#       define R300_VAP_UCP_ENABLE_2             (1 << 2)
#       define R300_VAP_UCP_ENABLE_3             (1 << 3)
#       define R300_VAP_UCP_ENABLE_4             (1 << 4)
#       define R300_VAP_UCP_ENABLE_5             (1 << 5)
#       define R300_PS_UCP_MODE_DIST_COP         (0 << 14)
#       define R300_PS_UCP_MODE_RADIUS_COP       (1 << 14)
#       define R300_PS_UCP_MODE_RADIUS_COP_CLIP  (2 << 14)
#       define R300_PS_UCP_MODE_CLIP_AS_TRIFAN   (3 << 14)
#       define R300_CLIP_DISABLE                 (1 << 16)
#       define R300_UCP_CULL_ONLY_ENABLE         (1 << 17)
#       define R300_BOUNDARY_EDGE_FLAG_ENABLE    (1 << 18)
#       define R500_COLOR2_IS_TEXTURE            (1 << 20)
#       define R500_COLOR3_IS_TEXTURE            (1 << 21)

/* These seem to be per-pixel and per-vertex X and Y clipping planes. The first
 * plane is per-pixel and the second plane is per-vertex.
 *
 * This was determined by experimentation alone but I believe it is correct.
 *
 * These registers are called X_QUAD0_1_FL to X_QUAD0_4_FL by glxtest.
 */
#define R300_VAP_GB_VERT_CLIP_ADJ                   0x2220
#define R300_VAP_GB_VERT_DISC_ADJ                   0x2224
#define R300_VAP_GB_HORZ_CLIP_ADJ                   0x2228
#define R300_VAP_GB_HORZ_DISC_ADJ                   0x222c

/* gap */

/* Sometimes, END_OF_PKT and 0x2284=0 are the only commands sent between
 * rendering commands and overwriting vertex program parameters.
 * Therefore, I suspect writing zero to 0x2284 synchronizes the engine and
 * avoids bugs caused by still running shaders reading bad data from memory.
 */
#define R300_VAP_PVS_STATE_FLUSH_REG        0x2284

/* This register is used to define the number of core clocks to wait for a
 * vertex to be received by the VAP input controller (while the primitive
 * path is backed up) before forcing any accumulated vertices to be submitted
 * to the vertex processing path.
 */
#define VAP_PVS_VTX_TIMEOUT_REG             0x2288
#       define R300_2288_R300                    0x00750000 /* -- nh */
#       define R300_2288_RV350                   0x0000FFFF /* -- Vladimir */

/* gap */

/* Addresses are relative to the vertex program instruction area of the
 * memory bank. PROGRAM_END points to the last instruction of the active
 * program
 *
 * The meaning of the two UNKNOWN fields is obviously not known. However,
 * experiments so far have shown that both *must* point to an instruction
 * inside the vertex program, otherwise the GPU locks up.
 *
 * fglrx usually sets CNTL_3_UNKNOWN to the end of the program and
 * R300_PVS_CNTL_1_POS_END_SHIFT points to instruction where last write to
 * position takes place.
 *
 * Most likely this is used to ignore rest of the program in cases
 * where group of verts arent visible. For some reason this "section"
 * is sometimes accepted other instruction that have no relationship with
 * position calculations.
 */
#define R300_VAP_PVS_CODE_CNTL_0            0x22D0
#       define R300_PVS_FIRST_INST_SHIFT         0
#       define R300_PVS_XYZW_VALID_INST_SHIFT    10
#       define R300_PVS_LAST_INST_SHIFT          20
#       define R300_PVS_FIRST_INST(x)            ((x) << 0)
#       define R300_PVS_XYZW_VALID_INST(x)       ((x) << 10)
#       define R300_PVS_LAST_INST(x)             ((x) << 20)
/* Addresses are relative the the vertex program parameters area. */
#define R300_VAP_PVS_CONST_CNTL             0x22D4
#       define R300_PVS_CONST_BASE_OFFSET_SHIFT  0
#       define R300_PVS_MAX_CONST_ADDR_SHIFT     16
#       define R300_PVS_MAX_CONST_ADDR(x)        ((x) << 16)
#define R300_VAP_PVS_CODE_CNTL_1            0x22D8
#       define R300_PVS_LAST_VTX_SRC_INST_SHIFT  0
#define R300_VAP_PVS_FLOW_CNTL_OPC          0x22DC

/* The entire range from 0x2300 to 0x2AC inclusive seems to be used for
 * immediate vertices
 */
#define R300_VAP_VTX_COLOR_R                0x2464
#define R300_VAP_VTX_COLOR_G                0x2468
#define R300_VAP_VTX_COLOR_B                0x246C
#define R300_VAP_VTX_POS_0_X_1              0x2490 /* used for glVertex2*() */
#define R300_VAP_VTX_POS_0_Y_1              0x2494
#define R300_VAP_VTX_COLOR_PKD              0x249C /* RGBA */
#define R300_VAP_VTX_POS_0_X_2              0x24A0 /* used for glVertex3*() */
#define R300_VAP_VTX_POS_0_Y_2              0x24A4
#define R300_VAP_VTX_POS_0_Z_2              0x24A8
/* write 0 to indicate end of packet? */
#define R300_VAP_VTX_END_OF_PKT             0x24AC

/* gap */

/* These are values from r300_reg/r300_reg.h - they are known to be correct
 * and are here so we can use one register file instead of several
 * - Vladimir
 */
#define R300_GB_VAP_RASTER_VTX_FMT_0    0x4000
#       define R300_GB_VAP_RASTER_VTX_FMT_0__POS_PRESENT        (1<<0)
#       define R300_GB_VAP_RASTER_VTX_FMT_0__COLOR_0_PRESENT    (1<<1)
#       define R300_GB_VAP_RASTER_VTX_FMT_0__COLOR_1_PRESENT    (1<<2)
#       define R300_GB_VAP_RASTER_VTX_FMT_0__COLOR_2_PRESENT    (1<<3)
#       define R300_GB_VAP_RASTER_VTX_FMT_0__COLOR_3_PRESENT    (1<<4)
#       define R300_GB_VAP_RASTER_VTX_FMT_0__COLOR_SPACE        (0xf<<5)
#       define R300_GB_VAP_RASTER_VTX_FMT_0__PT_SIZE_PRESENT    (0x1<<16)

#define R300_GB_VAP_RASTER_VTX_FMT_1    0x4004
        /* each of the following is 3 bits wide, specifies number
           of components */
#       define R300_GB_VAP_RASTER_VTX_FMT_1__TEX_0_COMP_CNT_SHIFT       0
#       define R300_GB_VAP_RASTER_VTX_FMT_1__TEX_1_COMP_CNT_SHIFT       3
#       define R300_GB_VAP_RASTER_VTX_FMT_1__TEX_2_COMP_CNT_SHIFT       6
#       define R300_GB_VAP_RASTER_VTX_FMT_1__TEX_3_COMP_CNT_SHIFT       9
#       define R300_GB_VAP_RASTER_VTX_FMT_1__TEX_4_COMP_CNT_SHIFT       12
#       define R300_GB_VAP_RASTER_VTX_FMT_1__TEX_5_COMP_CNT_SHIFT       15
#       define R300_GB_VAP_RASTER_VTX_FMT_1__TEX_6_COMP_CNT_SHIFT       18
#       define R300_GB_VAP_RASTER_VTX_FMT_1__TEX_7_COMP_CNT_SHIFT       21

/* UNK30 seems to enables point to quad transformation on textures
 * (or something closely related to that).
 * This bit is rather fatal at the time being due to lackings at pixel
 * shader side
 * Specifies top of Raster pipe specific enable controls.
 */
#define R300_GB_ENABLE  0x4008
#       define R300_GB_POINT_STUFF_DISABLE     (0 << 0)
#       define R300_GB_POINT_STUFF_ENABLE      (1 << 0) /* Specifies if points will have stuffed texture coordinates. */
#       define R300_GB_LINE_STUFF_DISABLE      (0 << 1)
#       define R300_GB_LINE_STUFF_ENABLE       (1 << 1) /* Specifies if lines will have stuffed texture coordinates. */
#       define R300_GB_TRIANGLE_STUFF_DISABLE  (0 << 2)
#       define R300_GB_TRIANGLE_STUFF_ENABLE   (1 << 2) /* Specifies if triangles will have stuffed texture coordinates. */
#       define R300_GB_STENCIL_AUTO_DISABLE    (0 << 4)
#       define R300_GB_STENCIL_AUTO_ENABLE     (1 << 4) /* Enable stencil auto inc/dec based on triangle cw/ccw, force into dzy low bit. */
#       define R300_GB_STENCIL_AUTO_FORCE      (2 << 4) /* Force 0 into dzy low bit. */

        /* each of the following is 2 bits wide */
#define R300_GB_TEX_REPLICATE   0 /* Replicate VAP source texture coordinates (S,T,[R,Q]). */
#define R300_GB_TEX_ST          1 /* Stuff with source texture coordinates (S,T). */
#define R300_GB_TEX_STR         2 /* Stuff with source texture coordinates (S,T,R). */
#       define R300_GB_TEX0_SOURCE_SHIFT        16
#       define R300_GB_TEX1_SOURCE_SHIFT        18
#       define R300_GB_TEX2_SOURCE_SHIFT        20
#       define R300_GB_TEX3_SOURCE_SHIFT        22
#       define R300_GB_TEX4_SOURCE_SHIFT        24
#       define R300_GB_TEX5_SOURCE_SHIFT        26
#       define R300_GB_TEX6_SOURCE_SHIFT        28
#       define R300_GB_TEX7_SOURCE_SHIFT        30

/* MSPOS - positions for multisample antialiasing (?) */
#define R300_GB_MSPOS0                           0x4010
        /* shifts - each of the fields is 4 bits */
#       define R300_GB_MSPOS0__MS_X0_SHIFT      0
#       define R300_GB_MSPOS0__MS_Y0_SHIFT      4
#       define R300_GB_MSPOS0__MS_X1_SHIFT      8
#       define R300_GB_MSPOS0__MS_Y1_SHIFT      12
#       define R300_GB_MSPOS0__MS_X2_SHIFT      16
#       define R300_GB_MSPOS0__MS_Y2_SHIFT      20
#       define R300_GB_MSPOS0__MSBD0_Y          24
#       define R300_GB_MSPOS0__MSBD0_X          28

#define R300_GB_MSPOS1                           0x4014
#       define R300_GB_MSPOS1__MS_X3_SHIFT      0
#       define R300_GB_MSPOS1__MS_Y3_SHIFT      4
#       define R300_GB_MSPOS1__MS_X4_SHIFT      8
#       define R300_GB_MSPOS1__MS_Y4_SHIFT      12
#       define R300_GB_MSPOS1__MS_X5_SHIFT      16
#       define R300_GB_MSPOS1__MS_Y5_SHIFT      20
#       define R300_GB_MSPOS1__MSBD1            24

/* Specifies the graphics pipeline configuration for rasterization. */
#define R300_GB_TILE_CONFIG                      0x4018
#       define R300_GB_TILE_DISABLE             (0 << 0)
#       define R300_GB_TILE_ENABLE              (1 << 0)
#       define R300_GB_TILE_PIPE_COUNT_RV300    (0 << 1) /* RV350 (1 pipe, 1 ctx) */
#       define R300_GB_TILE_PIPE_COUNT_R300     (3 << 1) /* R300 (2 pipes, 1 ctx) */
#       define R300_GB_TILE_PIPE_COUNT_R420_3P  (6 << 1) /* R420-3P (3 pipes, 1 ctx) */
#       define R300_GB_TILE_PIPE_COUNT_R420     (7 << 1) /* R420 (4 pipes, 1 ctx) */
#       define R300_GB_TILE_SIZE_8              (0 << 4)
#       define R300_GB_TILE_SIZE_16             (1 << 4)
#       define R300_GB_TILE_SIZE_32             (2 << 4)
#       define R300_GB_SUPER_SIZE_1             (0 << 6)
#       define R300_GB_SUPER_SIZE_2             (1 << 6)
#       define R300_GB_SUPER_SIZE_4             (2 << 6)
#       define R300_GB_SUPER_SIZE_8             (3 << 6)
#       define R300_GB_SUPER_SIZE_16            (4 << 6)
#       define R300_GB_SUPER_SIZE_32            (5 << 6)
#       define R300_GB_SUPER_SIZE_64            (6 << 6)
#       define R300_GB_SUPER_SIZE_128           (7 << 6)
#       define R300_GB_SUPER_X_SHIFT            9       /* 3 bits wide */
#       define R300_GB_SUPER_Y_SHIFT            12      /* 3 bits wide */
#       define R300_GB_SUPER_TILE_A             (0 << 15)
#       define R300_GB_SUPER_TILE_B             (1 << 15)
#       define R300_GB_SUBPIXEL_1_12            (0 << 16)
#       define R300_GB_SUBPIXEL_1_16            (1 << 16)
#       define R300_GB_TILE_CONFIG_QUADS_PER_RAS_4   (0 << 17)
#       define R300_GB_TILE_CONFIG_QUADS_PER_RAS_8   (1 << 17)
#       define R300_GB_TILE_CONFIG_QUADS_PER_RAS_16  (2 << 17)
#       define R300_GB_TILE_CONFIG_QUADS_PER_RAS_32  (3 << 17)
#       define R300_GB_TILE_CONFIG_BB_SCAN_INTERCEPT (0 << 19)
#       define R300_GB_TILE_CONFIG_BB_SCAN_BOUND_BOX (1 << 19)
#       define R300_GB_TILE_CONFIG_ALT_SCAN_EN_LR    (0 << 20)
#       define R300_GB_TILE_CONFIG_ALT_SCAN_EN_LRL   (1 << 20)
#       define R300_GB_TILE_CONFIG_ALT_OFFSET        (0 << 21)
#       define R300_GB_TILE_CONFIG_SUBPRECISION      (0 << 22)
#       define R300_GB_TILE_CONFIG_ALT_TILING_DEF    (0 << 23)
#       define R300_GB_TILE_CONFIG_ALT_TILING_3_2    (1 << 23)
#       define R300_GB_TILE_CONFIG_Z_EXTENDED_24_1   (0 << 24)
#       define R300_GB_TILE_CONFIG_Z_EXTENDED_S25_1  (1 << 24)

/* Specifies the sizes of the various FIFO`s in the sc/rs/us. This register must be the first one written */
#define R300_GB_FIFO_SIZE       0x4024
        /* each of the following is 2 bits wide */
#define R300_GB_FIFO_SIZE_32    0
#define R300_GB_FIFO_SIZE_64    1
#define R300_GB_FIFO_SIZE_128   2
#define R300_GB_FIFO_SIZE_256   3
#       define R300_SC_IFIFO_SIZE_SHIFT 0
#       define R300_SC_TZFIFO_SIZE_SHIFT        2
#       define R300_SC_BFIFO_SIZE_SHIFT 4

#       define R300_US_OFIFO_SIZE_SHIFT 12
#       define R300_US_WFIFO_SIZE_SHIFT 14
        /* the following use the same constants as above, but meaning is
           is times 2 (i.e. instead of 32 words it means 64 */
#       define R300_RS_TFIFO_SIZE_SHIFT 6
#       define R300_RS_CFIFO_SIZE_SHIFT 8
#       define R300_US_RAM_SIZE_SHIFT           10
        /* watermarks, 3 bits wide */
#       define R300_RS_HIGHWATER_COL_SHIFT      16
#       define R300_RS_HIGHWATER_TEX_SHIFT      19
#       define R300_OFIFO_HIGHWATER_SHIFT       22      /* two bits only */
#       define R300_CUBE_FIFO_HIGHWATER_COL_SHIFT       24

#define R300_GB_Z_PEQ_CONFIG                          0x4028
#       define R300_GB_Z_PEQ_CONFIG_Z_PEQ_SIZE_4_4    (0 << 0)
#       define R300_GB_Z_PEQ_CONFIG_Z_PEQ_SIZE_8_8    (1 << 0)

/* Specifies various polygon specific selects (fog, depth, perspective). */
#define R300_GB_SELECT                           0x401c
#       define R300_GB_FOG_SELECT_C0A           (0 << 0)
#       define R300_GB_FOG_SELECT_C1A           (1 << 0)
#       define R300_GB_FOG_SELECT_C2A           (2 << 0)
#       define R300_GB_FOG_SELECT_C3A           (3 << 0)
#       define R300_GB_FOG_SELECT_1_1_W         (4 << 0)
#       define R300_GB_FOG_SELECT_Z             (5 << 0)
#       define R300_GB_DEPTH_SELECT_Z           (0 << 3)
#       define R300_GB_DEPTH_SELECT_1_1_W       (1 << 3)
#       define R300_GB_W_SELECT_1_W             (0 << 4)
#       define R300_GB_W_SELECT_1               (1 << 4)
#       define R300_GB_FOG_STUFF_DISABLE        (0 << 5)
#       define R300_GB_FOG_STUFF_ENABLE         (1 << 5)
#       define R300_GB_FOG_STUFF_TEX_SHIFT      6
#       define R300_GB_FOG_STUFF_TEX_MASK       0x000003c0
#       define R300_GB_FOG_STUFF_COMP_SHIFT     10
#       define R300_GB_FOG_STUFF_COMP_MASK      0x00000c00

/* Specifies the graphics pipeline configuration for antialiasing. */
#define R300_GB_AA_CONFIG                         0x4020
#       define R300_GB_AA_CONFIG_AA_DISABLE           (0 << 0)
#       define R300_GB_AA_CONFIG_AA_ENABLE            (1 << 0)
#       define R300_GB_AA_CONFIG_NUM_AA_SUBSAMPLES_2  (0 << 1)
#       define R300_GB_AA_CONFIG_NUM_AA_SUBSAMPLES_3  (1 << 1)
#       define R300_GB_AA_CONFIG_NUM_AA_SUBSAMPLES_4  (2 << 1)
#       define R300_GB_AA_CONFIG_NUM_AA_SUBSAMPLES_6  (3 << 1)

/* Selects which of 4 pipes are active. */
#define R300_GB_PIPE_SELECT                           0x402c
#       define R300_GB_PIPE_SELECT_PIPE0_ID_SHIFT  0
#       define R300_GB_PIPE_SELECT_PIPE1_ID_SHIFT  2
#       define R300_GB_PIPE_SELECT_PIPE2_ID_SHIFT  4
#       define R300_GB_PIPE_SELECT_PIPE3_ID_SHIFT  6
#       define R300_GB_PIPE_SELECT_PIPE_MASK_SHIFT 8
#       define R300_GB_PIPE_SELECT_MAX_PIPE        12
#       define R300_GB_PIPE_SELECT_BAD_PIPES       14
#       define R300_GB_PIPE_SELECT_CONFIG_PIPES    18


/* Specifies the sizes of the various FIFO`s in the sc/rs. */
#define R300_GB_FIFO_SIZE1                            0x4070
/* High water mark for SC input fifo */
#       define R300_GB_FIFO_SIZE1_SC_HIGHWATER_IFIFO_SHIFT 0
#       define R300_GB_FIFO_SIZE1_SC_HIGHWATER_IFIFO_MASK  0x0000003f
/* High water mark for SC input fifo (B) */
#       define R300_GB_FIFO_SIZE1_SC_HIGHWATER_BFIFO_SHIFT 6
#       define R300_GB_FIFO_SIZE1_SC_HIGHWATER_BFIFO_MASK  0x00000fc0
/* High water mark for RS colors' fifo */
#       define R300_GB_FIFO_SIZE1_SC_HIGHWATER_COL_SHIFT   12
#       define R300_GB_FIFO_SIZE1_SC_HIGHWATER_COL_MASK    0x0003f000
/* High water mark for RS textures' fifo */
#       define R300_GB_FIFO_SIZE1_SC_HIGHWATER_TEX_SHIFT   18
#       define R300_GB_FIFO_SIZE1_SC_HIGHWATER_TEX_MASK    0x00fc0000

/* This table specifies the source location and format for up to 16 texture
 * addresses (i[0]:i[15]) and four colors (c[0]:c[3])
 */
#define R500_RS_IP_0                                    0x4074
#define R500_RS_IP_1                                    0x4078
#define R500_RS_IP_2                                    0x407C
#define R500_RS_IP_3                                    0x4080
#define R500_RS_IP_4                                    0x4084
#define R500_RS_IP_5                                    0x4088
#define R500_RS_IP_6                                    0x408C
#define R500_RS_IP_7                                    0x4090
#define R500_RS_IP_8                                    0x4094
#define R500_RS_IP_9                                    0x4098
#define R500_RS_IP_10                                   0x409C
#define R500_RS_IP_11                                   0x40A0
#define R500_RS_IP_12                                   0x40A4
#define R500_RS_IP_13                                   0x40A8
#define R500_RS_IP_14                                   0x40AC
#define R500_RS_IP_15                                   0x40B0
#define R500_RS_IP_PTR_K0                               62
#define R500_RS_IP_PTR_K1                               63
#define R500_RS_IP_TEX_PTR_S_SHIFT                      0
#define R500_RS_IP_TEX_PTR_T_SHIFT                      6
#define R500_RS_IP_TEX_PTR_R_SHIFT                      12
#define R500_RS_IP_TEX_PTR_Q_SHIFT                      18
#define R500_RS_IP_COL_PTR_SHIFT                        24
#define R500_RS_IP_COL_FMT_SHIFT                        27
#       define R500_RS_SEL_S(x)                         ((x) << 0)
#       define R500_RS_SEL_T(x)                         ((x) << 6)
#       define R500_RS_SEL_R(x)                         ((x) << 12)
#       define R500_RS_SEL_Q(x)                         ((x) << 18)
#       define R500_RS_COL_PTR(x)                       ((x) << 24)
#       define R500_RS_COL_FMT(x)                       ((x) << 27)
/* gap */
#define R500_RS_IP_OFFSET_DIS                           (0 << 31)
#define R500_RS_IP_OFFSET_EN                            (1 << 31)

/* gap */

/* Zero to flush caches. */
#define R300_TX_INVALTAGS                   0x4100
#define R300_TX_FLUSH                       0x0

/* The upper enable bits are guessed, based on fglrx reported limits. */
#define R300_TX_ENABLE                      0x4104
#       define R300_TX_ENABLE_0                  (1 << 0)
#       define R300_TX_ENABLE_1                  (1 << 1)
#       define R300_TX_ENABLE_2                  (1 << 2)
#       define R300_TX_ENABLE_3                  (1 << 3)
#       define R300_TX_ENABLE_4                  (1 << 4)
#       define R300_TX_ENABLE_5                  (1 << 5)
#       define R300_TX_ENABLE_6                  (1 << 6)
#       define R300_TX_ENABLE_7                  (1 << 7)
#       define R300_TX_ENABLE_8                  (1 << 8)
#       define R300_TX_ENABLE_9                  (1 << 9)
#       define R300_TX_ENABLE_10                 (1 << 10)
#       define R300_TX_ENABLE_11                 (1 << 11)
#       define R300_TX_ENABLE_12                 (1 << 12)
#       define R300_TX_ENABLE_13                 (1 << 13)
#       define R300_TX_ENABLE_14                 (1 << 14)
#       define R300_TX_ENABLE_15                 (1 << 15)

#define R500_TX_FILTER_4                    0x4110
#       define R500_TX_WEIGHT_1_SHIFT            (0)
#       define R500_TX_WEIGHT_0_SHIFT            (11)
#       define R500_TX_WEIGHT_PAIR               (1<<22)
#       define R500_TX_PHASE_SHIFT               (23)
#       define R500_TX_DIRECTION_HORIZONTAL      (0<<27)
#       define R500_TX_DIRECTION_VERITCAL        (1<<27)

/* S Texture Coordinate of Vertex 0 for Point texture stuffing (LLC) */
#define R300_GA_POINT_S0                              0x4200

/* T Texture Coordinate of Vertex 0 for Point texture stuffing (LLC) */
#define R300_GA_POINT_T0                              0x4204

/* S Texture Coordinate of Vertex 2 for Point texture stuffing (URC) */
#define R300_GA_POINT_S1                              0x4208

/* T Texture Coordinate of Vertex 2 for Point texture stuffing (URC) */
#define R300_GA_POINT_T1                              0x420c

/* Specifies amount to shift integer position of vertex (screen space) before
 * converting to float for triangle stipple.
 */
#define R300_GA_TRIANGLE_STIPPLE            0x4214
#       define R300_GA_TRIANGLE_STIPPLE_X_SHIFT_SHIFT 0
#       define R300_GA_TRIANGLE_STIPPLE_X_SHIFT_MASK  0x0000000f
#       define R300_GA_TRIANGLE_STIPPLE_Y_SHIFT_SHIFT 16
#       define R300_GA_TRIANGLE_STIPPLE_Y_SHIFT_MASK  0x000f0000

/* The pointsize is given in multiples of 6. The pointsize can be enormous:
 * Clear() renders a single point that fills the entire framebuffer.
 * 1/2 Height of point; fixed (16.0), subpixel format (1/12 or 1/16, even if in
 * 8b precision).
 */
#define R300_GA_POINT_SIZE                   0x421C
#       define R300_POINTSIZE_Y_SHIFT         0
#       define R300_POINTSIZE_Y_MASK          0x0000ffff
#       define R300_POINTSIZE_X_SHIFT         16
#       define R300_POINTSIZE_X_MASK          0xffff0000
#       define R300_POINTSIZE_MAX             (R300_POINTSIZE_Y_MASK / 6)

/* Red fill color */
#define R500_GA_FILL_R                                0x4220

/* Green fill color */
#define R500_GA_FILL_G                                0x4224

/* Blue fill color */
#define R500_GA_FILL_B                                0x4228

/* Alpha fill color */
#define R500_GA_FILL_A                                0x422c


/* Specifies maximum and minimum point & sprite sizes for per vertex size
 * specification. The lower part (15:0) is MIN and (31:16) is max.
 */
#define R300_GA_POINT_MINMAX                0x4230
#       define R300_GA_POINT_MINMAX_MIN_SHIFT          0
#       define R300_GA_POINT_MINMAX_MIN_MASK           (0xFFFF << 0)
#       define R300_GA_POINT_MINMAX_MAX_SHIFT          16
#       define R300_GA_POINT_MINMAX_MAX_MASK           (0xFFFF << 16)

/* 1/2 width of line, in subpixels (1/12 or 1/16 only, even in 8b
 * subprecision); (16.0) fixed format.
 *
 * The line width is given in multiples of 6.
 * In default mode lines are classified as vertical lines.
 * HO: horizontal
 * VE: vertical or horizontal
 * HO & VE: no classification
 */
#define R300_GA_LINE_CNTL                             0x4234
#       define R300_GA_LINE_CNTL_WIDTH_SHIFT       0
#       define R300_GA_LINE_CNTL_WIDTH_MASK        0x0000ffff
#       define R300_GA_LINE_CNTL_END_TYPE_HOR      (0 << 16)
#       define R300_GA_LINE_CNTL_END_TYPE_VER      (1 << 16)
#       define R300_GA_LINE_CNTL_END_TYPE_SQR      (2 << 16) /* horizontal or vertical depending upon slope */
#       define R300_GA_LINE_CNTL_END_TYPE_COMP     (3 << 16) /* Computed (perpendicular to slope) */
#       define R500_GA_LINE_CNTL_SORT_NO           (0 << 18)
#       define R500_GA_LINE_CNTL_SORT_MINX_MINY    (1 << 18)
/** TODO: looks wrong */
#       define R300_LINESIZE_MAX              (R300_GA_LINE_CNTL_WIDTH_MASK / 6)
/** TODO: looks wrong */
#       define R300_LINE_CNT_HO               (1 << 16)
/** TODO: looks wrong */
#       define R300_LINE_CNT_VE               (1 << 17)

/* Line Stipple configuration information. */
#define R300_GA_LINE_STIPPLE_CONFIG                   0x4238
#       define R300_GA_LINE_STIPPLE_CONFIG_LINE_RESET_NO     (0 << 0)
#       define R300_GA_LINE_STIPPLE_CONFIG_LINE_RESET_LINE   (1 << 0)
#       define R300_GA_LINE_STIPPLE_CONFIG_LINE_RESET_PACKET (2 << 0)
#       define R300_GA_LINE_STIPPLE_CONFIG_STIPPLE_SCALE_SHIFT 2
#       define R300_GA_LINE_STIPPLE_CONFIG_STIPPLE_SCALE_MASK  0xfffffffc

/* Used to load US instructions and constants */
#define R500_GA_US_VECTOR_INDEX               0x4250
#       define R500_GA_US_VECTOR_INDEX_SHIFT       0
#       define R500_GA_US_VECTOR_INDEX_MASK        0x000000ff
#       define R500_GA_US_VECTOR_INDEX_TYPE_INSTR  (0 << 16)
#       define R500_GA_US_VECTOR_INDEX_TYPE_CONST  (1 << 16)
#       define R500_GA_US_VECTOR_INDEX_CLAMP_NO    (0 << 17)
#       define R500_GA_US_VECTOR_INDEX_CLAMP_CONST (1 << 17)

/* Data register for loading US instructions and constants */
#define R500_GA_US_VECTOR_DATA                0x4254

/* Specifies color properties and mappings of textures. */
#define R500_GA_COLOR_CONTROL_PS3                     0x4258
#       define R500_TEX0_SHADING_PS3_SOLID       (0 << 0)
#       define R500_TEX0_SHADING_PS3_FLAT        (1 << 0)
#       define R500_TEX0_SHADING_PS3_GOURAUD     (2 << 0)
#       define R500_TEX1_SHADING_PS3_SOLID       (0 << 2)
#       define R500_TEX1_SHADING_PS3_FLAT        (1 << 2)
#       define R500_TEX1_SHADING_PS3_GOURAUD     (2 << 2)
#       define R500_TEX2_SHADING_PS3_SOLID       (0 << 4)
#       define R500_TEX2_SHADING_PS3_FLAT        (1 << 4)
#       define R500_TEX2_SHADING_PS3_GOURAUD     (2 << 4)
#       define R500_TEX3_SHADING_PS3_SOLID       (0 << 6)
#       define R500_TEX3_SHADING_PS3_FLAT        (1 << 6)
#       define R500_TEX3_SHADING_PS3_GOURAUD     (2 << 6)
#       define R500_TEX4_SHADING_PS3_SOLID       (0 << 8)
#       define R500_TEX4_SHADING_PS3_FLAT        (1 << 8)
#       define R500_TEX4_SHADING_PS3_GOURAUD     (2 << 8)
#       define R500_TEX5_SHADING_PS3_SOLID       (0 << 10)
#       define R500_TEX5_SHADING_PS3_FLAT        (1 << 10)
#       define R500_TEX5_SHADING_PS3_GOURAUD     (2 << 10)
#       define R500_TEX6_SHADING_PS3_SOLID       (0 << 12)
#       define R500_TEX6_SHADING_PS3_FLAT        (1 << 12)
#       define R500_TEX6_SHADING_PS3_GOURAUD     (2 << 12)
#       define R500_TEX7_SHADING_PS3_SOLID       (0 << 14)
#       define R500_TEX7_SHADING_PS3_FLAT        (1 << 14)
#       define R500_TEX7_SHADING_PS3_GOURAUD     (2 << 14)
#       define R500_TEX8_SHADING_PS3_SOLID       (0 << 16)
#       define R500_TEX8_SHADING_PS3_FLAT        (1 << 16)
#       define R500_TEX8_SHADING_PS3_GOURAUD     (2 << 16)
#       define R500_TEX9_SHADING_PS3_SOLID       (0 << 18)
#       define R500_TEX9_SHADING_PS3_FLAT        (1 << 18)
#       define R500_TEX9_SHADING_PS3_GOURAUD     (2 << 18)
#       define R500_TEX10_SHADING_PS3_SOLID      (0 << 20)
#       define R500_TEX10_SHADING_PS3_FLAT       (1 << 20)
#       define R500_TEX10_SHADING_PS3_GOURAUD    (2 << 20)
#       define R500_COLOR0_TEX_OVERRIDE_NO       (0 << 22)
#       define R500_COLOR0_TEX_OVERRIDE_TEX_0    (1 << 22)
#       define R500_COLOR0_TEX_OVERRIDE_TEX_1    (2 << 22)
#       define R500_COLOR0_TEX_OVERRIDE_TEX_2    (3 << 22)
#       define R500_COLOR0_TEX_OVERRIDE_TEX_3    (4 << 22)
#       define R500_COLOR0_TEX_OVERRIDE_TEX_4    (5 << 22)
#       define R500_COLOR0_TEX_OVERRIDE_TEX_5    (6 << 22)
#       define R500_COLOR0_TEX_OVERRIDE_TEX_6    (7 << 22)
#       define R500_COLOR0_TEX_OVERRIDE_TEX_7    (8 << 22)
#       define R500_COLOR0_TEX_OVERRIDE_TEX_8_C2 (9 << 22)
#       define R500_COLOR0_TEX_OVERRIDE_TEX_9_C3 (10 << 22)
#       define R500_COLOR1_TEX_OVERRIDE_NO       (0 << 26)
#       define R500_COLOR1_TEX_OVERRIDE_TEX_0    (1 << 26)
#       define R500_COLOR1_TEX_OVERRIDE_TEX_1    (2 << 26)
#       define R500_COLOR1_TEX_OVERRIDE_TEX_2    (3 << 26)
#       define R500_COLOR1_TEX_OVERRIDE_TEX_3    (4 << 26)
#       define R500_COLOR1_TEX_OVERRIDE_TEX_4    (5 << 26)
#       define R500_COLOR1_TEX_OVERRIDE_TEX_5    (6 << 26)
#       define R500_COLOR1_TEX_OVERRIDE_TEX_6    (7 << 26)
#       define R500_COLOR1_TEX_OVERRIDE_TEX_7    (8 << 26)
#       define R500_COLOR1_TEX_OVERRIDE_TEX_8_C2 (9 << 26)
#       define R500_COLOR1_TEX_OVERRIDE_TEX_9_C3 (10 << 26)

/* Returns idle status of various G3D block, captured when GA_IDLE written or
 * when hard or soft reset asserted.
 */
#define R500_GA_IDLE                                  0x425c
#       define R500_GA_IDLE_PIPE3_Z_IDLE  (0 << 0)
#       define R500_GA_IDLE_PIPE2_Z_IDLE  (0 << 1)
#       define R500_GA_IDLE_PIPE3_CD_IDLE (0 << 2)
#       define R500_GA_IDLE_PIPE2_CD_IDLE (0 << 3)
#       define R500_GA_IDLE_PIPE3_FG_IDLE (0 << 4)
#       define R500_GA_IDLE_PIPE2_FG_IDLE (0 << 5)
#       define R500_GA_IDLE_PIPE3_US_IDLE (0 << 6)
#       define R500_GA_IDLE_PIPE2_US_IDLE (0 << 7)
#       define R500_GA_IDLE_PIPE3_SC_IDLE (0 << 8)
#       define R500_GA_IDLE_PIPE2_SC_IDLE (0 << 9)
#       define R500_GA_IDLE_PIPE3_RS_IDLE (0 << 10)
#       define R500_GA_IDLE_PIPE2_RS_IDLE (0 << 11)
#       define R500_GA_IDLE_PIPE1_Z_IDLE  (0 << 12)
#       define R500_GA_IDLE_PIPE0_Z_IDLE  (0 << 13)
#       define R500_GA_IDLE_PIPE1_CD_IDLE (0 << 14)
#       define R500_GA_IDLE_PIPE0_CD_IDLE (0 << 15)
#       define R500_GA_IDLE_PIPE1_FG_IDLE (0 << 16)
#       define R500_GA_IDLE_PIPE0_FG_IDLE (0 << 17)
#       define R500_GA_IDLE_PIPE1_US_IDLE (0 << 18)
#       define R500_GA_IDLE_PIPE0_US_IDLE (0 << 19)
#       define R500_GA_IDLE_PIPE1_SC_IDLE (0 << 20)
#       define R500_GA_IDLE_PIPE0_SC_IDLE (0 << 21)
#       define R500_GA_IDLE_PIPE1_RS_IDLE (0 << 22)
#       define R500_GA_IDLE_PIPE0_RS_IDLE (0 << 23)
#       define R500_GA_IDLE_SU_IDLE       (0 << 24)
#       define R500_GA_IDLE_GA_IDLE       (0 << 25)
#       define R500_GA_IDLE_GA_UNIT2_IDLE (0 << 26)

/* Current value of stipple accumulator. */
#define R300_GA_LINE_STIPPLE_VALUE            0x4260

/* S Texture Coordinate Value for Vertex 0 of Line (stuff textures -- i.e. AA) */
#define R300_GA_LINE_S0                               0x4264
/* S Texture Coordinate Value for Vertex 1 of Lines (V2 of parallelogram -- stuff textures -- i.e. AA) */
#define R300_GA_LINE_S1                               0x4268

/* GA Input fifo high water marks */
#define R500_GA_FIFO_CNTL                             0x4270
#       define R500_GA_FIFO_CNTL_VERTEX_FIFO_MASK   0x00000007
#       define R500_GA_FIFO_CNTL_VERTEX_FIFO_SHIFT  0
#       define R500_GA_FIFO_CNTL_VERTEX_INDEX_MASK  0x00000038
#       define R500_GA_FIFO_CNTL_VERTEX_INDEX_SHIFT 3
#       define R500_GA_FIFO_CNTL_VERTEX_REG_MASK    0x00003fc0
#       define R500_GA_FIFO_CNTL_VERTEX_REG_SHIFT   6

/* GA enhance/tweaks */
#define R300_GA_ENHANCE                               0x4274
#       define R300_GA_ENHANCE_DEADLOCK_CNTL_NO_EFFECT   (0 << 0)
#       define R300_GA_ENHANCE_DEADLOCK_CNTL_PREVENT_TCL (1 << 0) /* Prevents TCL interface from deadlocking on GA side. */
#       define R300_GA_ENHANCE_FASTSYNC_CNTL_NO_EFFECT   (0 << 1)
#       define R300_GA_ENHANCE_FASTSYNC_CNTL_ENABLE      (1 << 1) /* Enables high-performance register/primitive switching. */
#       define R500_GA_ENHANCE_REG_READWRITE_NO_EFFECT   (0 << 2) /* R520+ only */
#       define R500_GA_ENHANCE_REG_READWRITE_ENABLE      (1 << 2) /* R520+ only, Enables GA support of simultaneous register reads and writes. */
#       define R500_GA_ENHANCE_REG_NOSTALL_NO_EFFECT     (0 << 3)
#       define R500_GA_ENHANCE_REG_NOSTALL_ENABLE        (1 << 3) /* Enables GA support of no-stall reads for register read back. */

#define R300_GA_COLOR_CONTROL                   0x4278
#       define R300_GA_COLOR_CONTROL_RGB0_SHADING_SOLID      (0 << 0)
#       define R300_GA_COLOR_CONTROL_RGB0_SHADING_FLAT       (1 << 0)
#       define R300_GA_COLOR_CONTROL_RGB0_SHADING_GOURAUD    (2 << 0)
#       define R300_GA_COLOR_CONTROL_ALPHA0_SHADING_SOLID    (0 << 2)
#       define R300_GA_COLOR_CONTROL_ALPHA0_SHADING_FLAT     (1 << 2)
#       define R300_GA_COLOR_CONTROL_ALPHA0_SHADING_GOURAUD  (2 << 2)
#       define R300_GA_COLOR_CONTROL_RGB1_SHADING_SOLID      (0 << 4)
#       define R300_GA_COLOR_CONTROL_RGB1_SHADING_FLAT       (1 << 4)
#       define R300_GA_COLOR_CONTROL_RGB1_SHADING_GOURAUD    (2 << 4)
#       define R300_GA_COLOR_CONTROL_ALPHA1_SHADING_SOLID    (0 << 6)
#       define R300_GA_COLOR_CONTROL_ALPHA1_SHADING_FLAT     (1 << 6)
#       define R300_GA_COLOR_CONTROL_ALPHA1_SHADING_GOURAUD  (2 << 6)
#       define R300_GA_COLOR_CONTROL_RGB2_SHADING_SOLID      (0 << 8)
#       define R300_GA_COLOR_CONTROL_RGB2_SHADING_FLAT       (1 << 8)
#       define R300_GA_COLOR_CONTROL_RGB2_SHADING_GOURAUD    (2 << 8)
#       define R300_GA_COLOR_CONTROL_ALPHA2_SHADING_SOLID    (0 << 10)
#       define R300_GA_COLOR_CONTROL_ALPHA2_SHADING_FLAT     (1 << 10)
#       define R300_GA_COLOR_CONTROL_ALPHA2_SHADING_GOURAUD  (2 << 10)
#       define R300_GA_COLOR_CONTROL_RGB3_SHADING_SOLID      (0 << 12)
#       define R300_GA_COLOR_CONTROL_RGB3_SHADING_FLAT       (1 << 12)
#       define R300_GA_COLOR_CONTROL_RGB3_SHADING_GOURAUD    (2 << 12)
#       define R300_GA_COLOR_CONTROL_ALPHA3_SHADING_SOLID    (0 << 14)
#       define R300_GA_COLOR_CONTROL_ALPHA3_SHADING_FLAT     (1 << 14)
#       define R300_GA_COLOR_CONTROL_ALPHA3_SHADING_GOURAUD  (2 << 14)
#       define R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_FIRST  (0 << 16)
#       define R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_SECOND (1 << 16)
#       define R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_THIRD  (2 << 16)
#       define R300_GA_COLOR_CONTROL_PROVOKING_VERTEX_LAST   (3 << 16)

#       define R300_SHADE_MODEL_FLAT ( \
        R300_GA_COLOR_CONTROL_RGB0_SHADING_FLAT | \
        R300_GA_COLOR_CONTROL_ALPHA0_SHADING_FLAT | \
        R300_GA_COLOR_CONTROL_RGB1_SHADING_FLAT | \
        R300_GA_COLOR_CONTROL_ALPHA1_SHADING_FLAT | \
        R300_GA_COLOR_CONTROL_RGB2_SHADING_FLAT | \
        R300_GA_COLOR_CONTROL_ALPHA2_SHADING_FLAT | \
        R300_GA_COLOR_CONTROL_RGB3_SHADING_FLAT | \
        R300_GA_COLOR_CONTROL_ALPHA3_SHADING_FLAT )

#       define R300_SHADE_MODEL_SMOOTH ( \
        R300_GA_COLOR_CONTROL_RGB0_SHADING_GOURAUD | \
        R300_GA_COLOR_CONTROL_ALPHA0_SHADING_GOURAUD | \
        R300_GA_COLOR_CONTROL_RGB1_SHADING_GOURAUD | \
        R300_GA_COLOR_CONTROL_ALPHA1_SHADING_GOURAUD | \
        R300_GA_COLOR_CONTROL_RGB2_SHADING_GOURAUD | \
        R300_GA_COLOR_CONTROL_ALPHA2_SHADING_GOURAUD | \
        R300_GA_COLOR_CONTROL_RGB3_SHADING_GOURAUD | \
        R300_GA_COLOR_CONTROL_ALPHA3_SHADING_GOURAUD )

/* Specifies red & green components of fill color -- S312 format -- Backwards comp. */
#define R300_GA_SOLID_RG                         0x427c
#       define GA_SOLID_RG_COLOR_GREEN_SHIFT 0
#       define GA_SOLID_RG_COLOR_GREEN_MASK  0x0000ffff
#       define GA_SOLID_RG_COLOR_RED_SHIFT   16
#       define GA_SOLID_RG_COLOR_RED_MASK    0xffff0000
/* Specifies blue & alpha components of fill color -- S312 format -- Backwards comp. */
#define R300_GA_SOLID_BA                         0x4280
#       define GA_SOLID_BA_COLOR_ALPHA_SHIFT 0
#       define GA_SOLID_BA_COLOR_ALPHA_MASK  0x0000ffff
#       define GA_SOLID_BA_COLOR_BLUE_SHIFT  16
#       define GA_SOLID_BA_COLOR_BLUE_MASK   0xffff0000

/* Polygon Mode
 * Dangerous
 */
#define R300_GA_POLY_MODE                             0x4288
#       define R300_GA_POLY_MODE_DISABLE           (0 << 0)
#       define R300_GA_POLY_MODE_DUAL              (1 << 0) /* send 2 sets of 3 polys with specified poly type */
/* reserved */
#       define R300_GA_POLY_MODE_FRONT_PTYPE_POINT (0 << 4)
#       define R300_GA_POLY_MODE_FRONT_PTYPE_LINE  (1 << 4)
#       define R300_GA_POLY_MODE_FRONT_PTYPE_TRI   (2 << 4)
/* reserved */
#       define R300_GA_POLY_MODE_BACK_PTYPE_POINT  (0 << 7)
#       define R300_GA_POLY_MODE_BACK_PTYPE_LINE   (1 << 7)
#       define R300_GA_POLY_MODE_BACK_PTYPE_TRI    (2 << 7)
/* reserved */

/* Specifies the rouding mode for geometry & color SPFP to FP conversions. */
#define R300_GA_ROUND_MODE                            0x428c
#       define R300_GA_ROUND_MODE_GEOMETRY_ROUND_TRUNC   (0 << 0)
#       define R300_GA_ROUND_MODE_GEOMETRY_ROUND_NEAREST (1 << 0)
#       define R300_GA_ROUND_MODE_COLOR_ROUND_TRUNC      (0 << 2)
#       define R300_GA_ROUND_MODE_COLOR_ROUND_NEAREST    (1 << 2)
#       define R300_GA_ROUND_MODE_RGB_CLAMP_RGB          (0 << 4)
#       define R300_GA_ROUND_MODE_RGB_CLAMP_FP20         (1 << 4)
#       define R300_GA_ROUND_MODE_ALPHA_CLAMP_RGB        (0 << 5)
#       define R300_GA_ROUND_MODE_ALPHA_CLAMP_FP20       (1 << 5)
#       define R500_GA_ROUND_MODE_GEOMETRY_MASK_SHIFT    6
#       define R500_GA_ROUND_MODE_GEOMETRY_MASK_MASK     0x000003c0

/* Specifies x & y offsets for vertex data after conversion to FP.
 * Offsets are in S15 format (subpixels -- 1/12 or 1/16, even in 8b
 * subprecision).
 */
#define R300_GA_OFFSET                                0x4290
#       define R300_GA_OFFSET_X_OFFSET_SHIFT 0
#       define R300_GA_OFFSET_X_OFFSET_MASK  0x0000ffff
#       define R300_GA_OFFSET_Y_OFFSET_SHIFT 16
#       define R300_GA_OFFSET_Y_OFFSET_MASK  0xffff0000

/* Specifies the scale to apply to fog. */
#define R300_GA_FOG_SCALE                     0x4294
/* Specifies the offset to apply to fog. */
#define R300_GA_FOG_OFFSET                    0x4298
/* Specifies number of cycles to assert reset, and also causes RB3D soft reset to assert. */
#define R300_GA_SOFT_RESET                    0x429c

/* Not sure why there are duplicate of factor and constant values.
 * My best guess so far is that there are seperate zbiases for test and write.
 * Ordering might be wrong.
 * Some of the tests indicate that fgl has a fallback implementation of zbias
 * via pixel shaders.
 */
#define R300_SU_TEX_WRAP                      0x42A0
#define R300_SU_POLY_OFFSET_FRONT_SCALE       0x42A4
#define R300_SU_POLY_OFFSET_FRONT_OFFSET      0x42A8
#define R300_SU_POLY_OFFSET_BACK_SCALE        0x42AC
#define R300_SU_POLY_OFFSET_BACK_OFFSET       0x42B0

/* This register needs to be set to (1<<1) for RV350 to correctly
 * perform depth test (see --vb-triangles in r300_demo)
 * Don't know about other chips. - Vladimir
 * This is set to 3 when GL_POLYGON_OFFSET_FILL is on.
 * My guess is that there are two bits for each zbias primitive
 * (FILL, LINE, POINT).
 *  One to enable depth test and one for depth write.
 * Yet this doesnt explain why depth writes work ...
 */
#define R300_SU_POLY_OFFSET_ENABLE             0x42B4
#       define R300_FRONT_ENABLE               (1 << 0)
#       define R300_BACK_ENABLE                (1 << 1)
#       define R300_PARA_ENABLE                (1 << 2)

#define R300_SU_CULL_MODE                      0x42B8
#       define R300_CULL_FRONT                   (1 << 0)
#       define R300_CULL_BACK                    (1 << 1)
#       define R300_FRONT_FACE_CCW               (0 << 2)
#       define R300_FRONT_FACE_CW                (1 << 2)

/* SU Depth Scale value */
#define R300_SU_DEPTH_SCALE                 0x42c0
/* SU Depth Offset value */
#define R300_SU_DEPTH_OFFSET                0x42c4

#define R300_SU_REG_DEST                    0x42c8
#       define R300_RASTER_PIPE_SELECT_0        (1 << 0)
#       define R300_RASTER_PIPE_SELECT_1        (1 << 1)
#       define R300_RASTER_PIPE_SELECT_2        (1 << 2)
#       define R300_RASTER_PIPE_SELECT_3        (1 << 3)
#       define R300_RASTER_PIPE_SELECT_ALL      0xf


/* BEGIN: Rasterization / Interpolators - many guesses */

/*
 * TC_CNT is the number of incoming texture coordinate sets (i.e. it depends
 * on the vertex program, *not* the fragment program)
 */
#define R300_RS_COUNT                      0x4300
#       define R300_IT_COUNT_SHIFT               0
#       define R300_IT_COUNT_MASK                0x0000007f
#       define R300_IC_COUNT_SHIFT               7
#       define R300_IC_COUNT_MASK                0x00000780
#       define R300_W_ADDR_SHIFT                 12
#       define R300_W_ADDR_MASK                  0x0003f000
#       define R300_HIRES_DIS                    (0 << 18)
#       define R300_HIRES_EN                     (1 << 18)
#       define R300_IT_COUNT(x)                  ((x) << 0)
#       define R300_IC_COUNT(x)                  ((x) << 7)
#       define R300_W_COUNT(x)                   ((x) << 12)

#define R300_RS_INST_COUNT                       0x4304
#       define R300_RS_INST_COUNT_SHIFT          0
#       define R300_RS_INST_COUNT_MASK           0x0000000f
#       define R300_RS_TX_OFFSET_SHIFT           5
#       define R300_RS_TX_OFFSET_MASK            0x000000e0
#       define R300_RS_TX_OFFSET(x)              ((x) << 5)

/* gap */

/* Only used for texture coordinates.
 * Use the source field to route texture coordinate input from the
 * vertex program to the desired interpolator. Note that the source
 * field is relative to the outputs the vertex program *actually*
 * writes. If a vertex program only writes texcoord[1], this will
 * be source index 0.
 * Set INTERP_USED on all interpolators that produce data used by
 * the fragment program. INTERP_USED looks like a swizzling mask,
 * but I haven't seen it used that way.
 *
 * Note: The _UNKNOWN constants are always set in their respective
 * register. I don't know if this is necessary.
 */
#define R300_RS_IP_0                                    0x4310
#define R300_RS_IP_1                                    0x4314
#define R300_RS_IP_2                                    0x4318
#define R300_RS_IP_3                                    0x431C
#       define R300_RS_INTERP_SRC_SHIFT          2 /* TODO: check for removal */
#       define R300_RS_INTERP_SRC_MASK           (7 << 2) /* TODO: check for removal */
#       define R300_RS_TEX_PTR(x)                       (x << 0)
#       define R300_RS_COL_PTR(x)                       ((x) << 6)
#       define R300_RS_COL_FMT(x)                       ((x) << 9)
#       define R300_RS_COL_FMT_RGBA                     0
#       define R300_RS_COL_FMT_RGB0                     1
#       define R300_RS_COL_FMT_RGB1                     2
#       define R300_RS_COL_FMT_000A                     4
#       define R300_RS_COL_FMT_0000                     5
#       define R300_RS_COL_FMT_0001                     6
#       define R300_RS_COL_FMT_111A                     8
#       define R300_RS_COL_FMT_1110                     9
#       define R300_RS_COL_FMT_1111                     10
#       define R300_RS_SEL_S(x)                         ((x) << 13)
#       define R300_RS_SEL_T(x)                         ((x) << 16)
#       define R300_RS_SEL_R(x)                         ((x) << 19)
#       define R300_RS_SEL_Q(x)                         ((x) << 22)
#       define R300_RS_SEL_C0                           0
#       define R300_RS_SEL_C1                           1
#       define R300_RS_SEL_C2                           2
#       define R300_RS_SEL_C3                           3
#       define R300_RS_SEL_K0                           4
#       define R300_RS_SEL_K1                           5


/*  */
#define R500_RS_INST_0                                  0x4320
#define R500_RS_INST_1                                  0x4324
#define R500_RS_INST_2                                  0x4328
#define R500_RS_INST_3                                  0x432c
#define R500_RS_INST_4                                  0x4330
#define R500_RS_INST_5                                  0x4334
#define R500_RS_INST_6                                  0x4338
#define R500_RS_INST_7                                  0x433c
#define R500_RS_INST_8                                  0x4340
#define R500_RS_INST_9                                  0x4344
#define R500_RS_INST_10                                 0x4348
#define R500_RS_INST_11                                 0x434c
#define R500_RS_INST_12                                 0x4350
#define R500_RS_INST_13                                 0x4354
#define R500_RS_INST_14                                 0x4358
#define R500_RS_INST_15                                 0x435c
#define R500_RS_INST_TEX_ID_SHIFT                       0
#        define R500_RS_INST_TEX_ID(x)                  ((x) << 0)
#define R500_RS_INST_TEX_CN_WRITE                       (1 << 4)
#define R500_RS_INST_TEX_ADDR_SHIFT                     5
#        define R500_RS_INST_TEX_ADDR(x)                ((x) << 5)
#define R500_RS_INST_COL_ID_SHIFT                       12
#        define R500_RS_INST_COL_ID(x)                  ((x) << 12)
#define R500_RS_INST_COL_CN_NO_WRITE                    (0 << 16)
#define R500_RS_INST_COL_CN_WRITE                       (1 << 16)
#define R500_RS_INST_COL_CN_WRITE_FBUFFER               (2 << 16)
#define R500_RS_INST_COL_CN_WRITE_BACKFACE              (3 << 16)
#define R500_RS_INST_COL_ADDR_SHIFT                     18
#        define R500_RS_INST_COL_ADDR(x)                ((x) << 18)
#define R500_RS_INST_TEX_ADJ                            (1 << 25)
#define R500_RS_INST_W_CN                               (1 << 26)

/* These DWORDs control how vertex data is routed into fragment program
 * registers, after interpolators.
 */
#define R300_RS_INST_0                     0x4330
#define R300_RS_INST_1                     0x4334
#define R300_RS_INST_2                     0x4338
#define R300_RS_INST_3                     0x433C
#define R300_RS_INST_4                     0x4340
#define R300_RS_INST_5                     0x4344
#define R300_RS_INST_6                     0x4348
#define R300_RS_INST_7                     0x434C
#       define R300_RS_INST_TEX_ID(x)           ((x) << 0)
#       define R300_RS_INST_TEX_CN_WRITE        (1 << 3)
#       define R300_RS_INST_TEX_ADDR(x)         ((x) << 6)
#       define R300_RS_INST_TEX_ADDR_SHIFT      6
#       define R300_RS_INST_COL_ID(x)           ((x) << 11)
#       define R300_RS_INST_COL_CN_WRITE        (1 << 14)
#       define R300_RS_INST_COL_ADDR(x)         ((x) << 17)
#       define R300_RS_INST_COL_ADDR_SHIFT      17
#       define R300_RS_INST_TEX_ADJ             (1 << 22)
#       define R300_RS_COL_BIAS_UNUSED_SHIFT    23

/* END: Rasterization / Interpolators - many guesses */

/* Hierarchical Z Enable */
#define R300_SC_HYPERZ                   0x43a4
#       define R300_SC_HYPERZ_DISABLE     (0 << 0)
#       define R300_SC_HYPERZ_ENABLE      (1 << 0)
#       define R300_SC_HYPERZ_MIN         (0 << 1)
#       define R300_SC_HYPERZ_MAX         (1 << 1)
#       define R300_SC_HYPERZ_ADJ_256     (0 << 2)
#       define R300_SC_HYPERZ_ADJ_128     (1 << 2)
#       define R300_SC_HYPERZ_ADJ_64      (2 << 2)
#       define R300_SC_HYPERZ_ADJ_32      (3 << 2)
#       define R300_SC_HYPERZ_ADJ_16      (4 << 2)
#       define R300_SC_HYPERZ_ADJ_8       (5 << 2)
#       define R300_SC_HYPERZ_ADJ_4       (6 << 2)
#       define R300_SC_HYPERZ_ADJ_2       (7 << 2)
#       define R300_SC_HYPERZ_HZ_Z0MIN_NO (0 << 5)
#       define R300_SC_HYPERZ_HZ_Z0MIN    (1 << 5)
#       define R300_SC_HYPERZ_HZ_Z0MAX_NO (0 << 6)
#       define R300_SC_HYPERZ_HZ_Z0MAX    (1 << 6)

#define R300_SC_EDGERULE                 0x43a8

/* BEGIN: Scissors and cliprects */

/* There are four clipping rectangles. Their corner coordinates are inclusive.
 * Every pixel is assigned a number from 0 and 15 by setting bits 0-3 depending
 * on whether the pixel is inside cliprects 0-3, respectively. For example,
 * if a pixel is inside cliprects 0 and 1, but outside 2 and 3, it is assigned
 * the number 3 (binary 0011).
 * Iff the bit corresponding to the pixel's number in RE_CLIPRECT_CNTL is set,
 * the pixel is rasterized.
 *
 * In addition to this, there is a scissors rectangle. Only pixels inside the
 * scissors rectangle are drawn. (coordinates are inclusive)
 *
 * For some reason, the top-left corner of the framebuffer is at (1440, 1440)
 * for the purpose of clipping and scissors.
 */
#define R300_SC_CLIPRECT_TL_0               0x43B0
#define R300_SC_CLIPRECT_BR_0               0x43B4
#define R300_SC_CLIPRECT_TL_1               0x43B8
#define R300_SC_CLIPRECT_BR_1               0x43BC
#define R300_SC_CLIPRECT_TL_2               0x43C0
#define R300_SC_CLIPRECT_BR_2               0x43C4
#define R300_SC_CLIPRECT_TL_3               0x43C8
#define R300_SC_CLIPRECT_BR_3               0x43CC
#       define R300_CLIPRECT_OFFSET              1440
#       define R300_CLIPRECT_MASK                0x1FFF
#       define R300_CLIPRECT_X_SHIFT             0
#       define R300_CLIPRECT_X_MASK              (0x1FFF << 0)
#       define R300_CLIPRECT_Y_SHIFT             13
#       define R300_CLIPRECT_Y_MASK              (0x1FFF << 13)
#define R300_SC_CLIP_RULE                   0x43D0
#       define R300_CLIP_OUT                     (1 << 0)
#       define R300_CLIP_0                       (1 << 1)
#       define R300_CLIP_1                       (1 << 2)
#       define R300_CLIP_10                      (1 << 3)
#       define R300_CLIP_2                       (1 << 4)
#       define R300_CLIP_20                      (1 << 5)
#       define R300_CLIP_21                      (1 << 6)
#       define R300_CLIP_210                     (1 << 7)
#       define R300_CLIP_3                       (1 << 8)
#       define R300_CLIP_30                      (1 << 9)
#       define R300_CLIP_31                      (1 << 10)
#       define R300_CLIP_310                     (1 << 11)
#       define R300_CLIP_32                      (1 << 12)
#       define R300_CLIP_320                     (1 << 13)
#       define R300_CLIP_321                     (1 << 14)
#       define R300_CLIP_3210                    (1 << 15)

/* gap */

#define R300_SC_SCISSORS_TL                 0x43E0
#define R300_SC_SCISSORS_BR                 0x43E4
#       define R300_SCISSORS_OFFSET              1440
#       define R300_SCISSORS_X_SHIFT             0
#       define R300_SCISSORS_X_MASK              (0x1FFF << 0)
#       define R300_SCISSORS_Y_SHIFT             13
#       define R300_SCISSORS_Y_MASK              (0x1FFF << 13)

/* Screen door sample mask */
#define R300_SC_SCREENDOOR                 0x43e8

/* END: Scissors and cliprects */

/* BEGIN: Texture specification */

/*
 * The texture specification dwords are grouped by meaning and not by texture
 * unit. This means that e.g. the offset for texture image unit N is found in
 * register TX_OFFSET_0 + (4*N)
 */
#define R300_TX_FILTER0_0                        0x4400
#define R300_TX_FILTER0_1                        0x4404
#define R300_TX_FILTER0_2                        0x4408
#define R300_TX_FILTER0_3                        0x440c
#define R300_TX_FILTER0_4                        0x4410
#define R300_TX_FILTER0_5                        0x4414
#define R300_TX_FILTER0_6                        0x4418
#define R300_TX_FILTER0_7                        0x441c
#define R300_TX_FILTER0_8                        0x4420
#define R300_TX_FILTER0_9                        0x4424
#define R300_TX_FILTER0_10                       0x4428
#define R300_TX_FILTER0_11                       0x442c
#define R300_TX_FILTER0_12                       0x4430
#define R300_TX_FILTER0_13                       0x4434
#define R300_TX_FILTER0_14                       0x4438
#define R300_TX_FILTER0_15                       0x443c
#       define R300_TX_REPEAT                    0
#       define R300_TX_MIRRORED                  1
#       define R300_TX_CLAMP_TO_EDGE             2
#       define R300_TX_MIRROR_ONCE_TO_EDGE       3
#       define R300_TX_CLAMP                     4
#       define R300_TX_MIRROR_ONCE               5
#       define R300_TX_CLAMP_TO_BORDER           6
#       define R300_TX_MIRROR_ONCE_TO_BORDER     7
#       define R300_TX_WRAP_S_SHIFT              0
#       define R300_TX_WRAP_S_MASK               (7 << 0)
#       define R300_TX_WRAP_T_SHIFT              3
#       define R300_TX_WRAP_T_MASK               (7 << 3)
#       define R300_TX_WRAP_R_SHIFT              6
#       define R300_TX_WRAP_R_MASK               (7 << 6)
#       define R300_TX_MAG_FILTER_4              (0 << 9)
#       define R300_TX_MAG_FILTER_NEAREST        (1 << 9)
#       define R300_TX_MAG_FILTER_LINEAR         (2 << 9)
#       define R300_TX_MAG_FILTER_ANISO          (3 << 9)
#       define R300_TX_MAG_FILTER_MASK           (3 << 9)
#       define R300_TX_MIN_FILTER_NEAREST        (1 << 11)
#       define R300_TX_MIN_FILTER_LINEAR         (2 << 11)
#       define R300_TX_MIN_FILTER_ANISO          (3 << 11)
#       define R300_TX_MIN_FILTER_MASK           (3 << 11)
#       define R300_TX_MIN_FILTER_MIP_NONE       (0 << 13)
#       define R300_TX_MIN_FILTER_MIP_NEAREST    (1 << 13)
#       define R300_TX_MIN_FILTER_MIP_LINEAR     (2 << 13)
#       define R300_TX_MIN_FILTER_MIP_MASK       (3 << 13)
#       define R300_TX_MAX_MIP_LEVEL_SHIFT       17
#       define R300_TX_MAX_MIP_LEVEL_MASK        (0xf << 17)
#       define R300_TX_MAX_ANISO_1_TO_1          (0 << 21)
#       define R300_TX_MAX_ANISO_2_TO_1          (1 << 21)
#       define R300_TX_MAX_ANISO_4_TO_1          (2 << 21)
#       define R300_TX_MAX_ANISO_8_TO_1          (3 << 21)
#       define R300_TX_MAX_ANISO_16_TO_1         (4 << 21)
#       define R300_TX_MAX_ANISO_MASK            (7 << 21)
#       define R300_TX_WRAP_S(x)                 ((x) << 0)
#       define R300_TX_WRAP_T(x)                 ((x) << 3)
#       define R300_TX_MAX_MIP_LEVEL(x)          ((x) << 17)

#define R300_TX_FILTER1_0                      0x4440
#       define R300_CHROMA_KEY_MODE_DISABLE    0
#       define R300_CHROMA_KEY_FORCE           1
#       define R300_CHROMA_KEY_BLEND           2
#       define R300_MC_ROUND_NORMAL            (0<<2)
#       define R300_MC_ROUND_MPEG4             (1<<2)
#       define R300_LOD_BIAS_SHIFT             3
#       define R300_LOD_BIAS_MASK              0x1ff8
#       define R300_EDGE_ANISO_EDGE_DIAG       (0<<13)
#       define R300_EDGE_ANISO_EDGE_ONLY       (1<<13)
#       define R300_MC_COORD_TRUNCATE_DISABLE  (0<<14)
#       define R300_MC_COORD_TRUNCATE_MPEG     (1<<14)
#       define R300_TX_TRI_PERF_0_8            (0<<15)
#       define R300_TX_TRI_PERF_1_8            (1<<15)
#       define R300_TX_TRI_PERF_1_4            (2<<15)
#       define R300_TX_TRI_PERF_3_8            (3<<15)
#       define R300_ANISO_THRESHOLD_MASK       (7<<17)

#       define R500_MACRO_SWITCH               (1<<22)
#       define R500_BORDER_FIX                 (1<<31)

#define R300_TX_FORMAT0_0                   0x4480
#       define R300_TX_WIDTHMASK_SHIFT           0
#       define R300_TX_WIDTHMASK_MASK            (2047 << 0)
#       define R300_TX_HEIGHTMASK_SHIFT          11
#       define R300_TX_HEIGHTMASK_MASK           (2047 << 11)
#       define R300_TX_DEPTHMASK_SHIFT           22
#       define R300_TX_DEPTHMASK_MASK            (0xf << 22)
#       define R300_TX_SIZE_PROJECTED            (1 << 30)
#       define R300_TX_PITCH_EN                  (1 << 31)
#       define R300_TX_WIDTH(x)                  ((x) << 0)
#       define R300_TX_HEIGHT(x)                 ((x) << 11)
#       define R300_TX_DEPTH(x)                  ((x) << 22)
#       define R300_TX_NUM_LEVELS(x)             ((x) << 26)

#define R300_TX_FORMAT1_0                   0x44C0
        /* The interpretation of the format word by Wladimir van der Laan */
        /* The X, Y, Z and W refer to the layout of the components.
           They are given meanings as R, G, B and Alpha by the swizzle
           specification */
#       define R300_TX_FORMAT_X8                    0x0
#       define R300_TX_FORMAT_X16                   0x1
#       define R300_TX_FORMAT_Y4X4                  0x2
#       define R300_TX_FORMAT_Y8X8                  0x3
#       define R300_TX_FORMAT_Y16X16                0x4
#       define R300_TX_FORMAT_Z3Y3X2                0x5
#       define R300_TX_FORMAT_Z5Y6X5                0x6
#       define R300_TX_FORMAT_Z6Y5X5                0x7
#       define R300_TX_FORMAT_Z11Y11X10             0x8
#       define R300_TX_FORMAT_Z10Y11X11             0x9
#       define R300_TX_FORMAT_W4Z4Y4X4              0xA
#       define R300_TX_FORMAT_W1Z5Y5X5              0xB
#       define R300_TX_FORMAT_W8Z8Y8X8              0xC
#       define R300_TX_FORMAT_W2Z10Y10X10           0xD
#       define R300_TX_FORMAT_W16Z16Y16X16          0xE
#       define R300_TX_FORMAT_DXT1                  0xF
#       define R300_TX_FORMAT_DXT3                  0x10
#       define R300_TX_FORMAT_DXT5                  0x11
#       define R300_TX_FORMAT_Y8                    0x12
#       define R300_TX_FORMAT_AVYU444               0x13
#       define R300_TX_FORMAT_VYUY422               0x14
#       define R300_TX_FORMAT_YVYU422               0x15
#       define R300_TX_FORMAT_16_MPEG               0x16
#       define R300_TX_FORMAT_16_16_MPEG            0x17
#       define R300_TX_FORMAT_16F                   0x18
#       define R300_TX_FORMAT_16F_16F               0x19
#       define R300_TX_FORMAT_16F_16F_16F_16F       0x1A
#       define R300_TX_FORMAT_32F                   0x1B
#       define R300_TX_FORMAT_32F_32F               0x1C
#       define R300_TX_FORMAT_32F_32F_32F_32F       0x1D
#       define R300_TX_FORMAT_W24_FP                0x1E

#       define R300_TX_FORMAT_SIGNED_W             (1 << 5)
#       define R300_TX_FORMAT_SIGNED_Z             (1 << 6)
#       define R300_TX_FORMAT_SIGNED_Y             (1 << 7)
#       define R300_TX_FORMAT_SIGNED_X             (1 << 8)
#       define R300_TX_FORMAT_SIGNED               (0xf << 5)

#       define R300_TX_FORMAT_3D                   (1 << 25)
#       define R300_TX_FORMAT_CUBIC_MAP            (2 << 25)

        /* alpha modes, convenience mostly */
        /* if you have alpha, pick constant appropriate to the
           number of channels (1 for I8, 2 for I8A8, 4 for R8G8B8A8, etc */
#       define R300_TX_FORMAT_ALPHA_1CH             0x000
#       define R300_TX_FORMAT_ALPHA_2CH             0x200
#       define R300_TX_FORMAT_ALPHA_4CH             0x600
#       define R300_TX_FORMAT_ALPHA_NONE            0xA00
        /* Swizzling */
        /* constants */
#       define R300_TX_FORMAT_X         0
#       define R300_TX_FORMAT_Y         1
#       define R300_TX_FORMAT_Z         2
#       define R300_TX_FORMAT_W         3
#       define R300_TX_FORMAT_ZERO      4
#       define R300_TX_FORMAT_ONE       5
        /* 2.0*Z, everything above 1.0 is set to 0.0 */
#       define R300_TX_FORMAT_CUT_Z     6
        /* 2.0*W, everything above 1.0 is set to 0.0 */
#       define R300_TX_FORMAT_CUT_W     7

#       define R300_TX_FORMAT_B_SHIFT   18
#       define R300_TX_FORMAT_G_SHIFT   15
#       define R300_TX_FORMAT_R_SHIFT   12
#       define R300_TX_FORMAT_A_SHIFT   9
        /* Convenience macro to take care of layout and swizzling */
#       define R300_EASY_TX_FORMAT(B, G, R, A, FMT)     (               \
                ((R300_TX_FORMAT_##B)<<R300_TX_FORMAT_B_SHIFT)          \
                | ((R300_TX_FORMAT_##G)<<R300_TX_FORMAT_G_SHIFT)        \
                | ((R300_TX_FORMAT_##R)<<R300_TX_FORMAT_R_SHIFT)        \
                | ((R300_TX_FORMAT_##A)<<R300_TX_FORMAT_A_SHIFT)        \
                | (R300_TX_FORMAT_##FMT)                                \
                )
        /* These can be ORed with result of R300_EASY_TX_FORMAT()
           We don't really know what they do. Take values from a
           constant color ? */
#       define R300_TX_FORMAT_CONST_X           (1<<5)
#       define R300_TX_FORMAT_CONST_Y           (2<<5)
#       define R300_TX_FORMAT_CONST_Z           (4<<5)
#       define R300_TX_FORMAT_CONST_W           (8<<5)

#       define R300_TX_FORMAT_GAMMA               (1 << 21)
#       define R300_TX_FORMAT_YUV_TO_RGB          (1 << 22)

#define R300_TX_FORMAT2_0                   0x4500 /* obvious missing in gap */
#       define R300_TX_PITCHMASK_SHIFT           0
#       define R300_TX_PITCHMASK_MASK            (2047 << 0)
#       define R500_TXFORMAT_MSB                 (1 << 14)
#       define R500_TXWIDTH_BIT11                (1 << 15)
#       define R500_TXHEIGHT_BIT11               (1 << 16)
#       define R500_POW2FIX2FLT                  (1 << 17)
#       define R500_SEL_FILTER4_TC0              (0 << 18)
#       define R500_SEL_FILTER4_TC1              (1 << 18)
#       define R500_SEL_FILTER4_TC2              (2 << 18)
#       define R500_SEL_FILTER4_TC3              (3 << 18)

#define R300_TX_OFFSET_0                    0x4540
#define R300_TX_OFFSET_1                    0x4544
#define R300_TX_OFFSET_2                    0x4548
#define R300_TX_OFFSET_3                    0x454C
#define R300_TX_OFFSET_4                    0x4550
#define R300_TX_OFFSET_5                    0x4554
#define R300_TX_OFFSET_6                    0x4558
#define R300_TX_OFFSET_7                    0x455C

#       define R300_TXO_ENDIAN_NO_SWAP           (0 << 0)
#       define R300_TXO_ENDIAN_BYTE_SWAP         (1 << 0)
#       define R300_TXO_ENDIAN_WORD_SWAP         (2 << 0)
#       define R300_TXO_ENDIAN_HALFDW_SWAP       (3 << 0)
#       define R300_TXO_MACRO_TILE_LINEAR        (0 << 2)
#       define R300_TXO_MACRO_TILE_TILED         (1 << 2)
#       define R300_TXO_MACRO_TILE(x)            ((x) << 2)
#       define R300_TXO_MICRO_TILE_LINEAR        (0 << 3)
#       define R300_TXO_MICRO_TILE_TILED         (1 << 3)
#       define R300_TXO_MICRO_TILE_TILED_SQUARE  (2 << 3)
#       define R300_TXO_MICRO_TILE(x)            ((x) << 3)
#       define R300_TXO_OFFSET_MASK              0xffffffe0
#       define R300_TXO_OFFSET_SHIFT             5

/* 32 bit chroma key */
#define R300_TX_CHROMA_KEY_0                      0x4580
#define R300_TX_CHROMA_KEY_1                      0x4584
#define R300_TX_CHROMA_KEY_2                      0x4588
#define R300_TX_CHROMA_KEY_3                      0x458c
#define R300_TX_CHROMA_KEY_4                      0x4590
#define R300_TX_CHROMA_KEY_5                      0x4594
#define R300_TX_CHROMA_KEY_6                      0x4598
#define R300_TX_CHROMA_KEY_7                      0x459c
#define R300_TX_CHROMA_KEY_8                      0x45a0
#define R300_TX_CHROMA_KEY_9                      0x45a4
#define R300_TX_CHROMA_KEY_10                     0x45a8
#define R300_TX_CHROMA_KEY_11                     0x45ac
#define R300_TX_CHROMA_KEY_12                     0x45b0
#define R300_TX_CHROMA_KEY_13                     0x45b4
#define R300_TX_CHROMA_KEY_14                     0x45b8
#define R300_TX_CHROMA_KEY_15                     0x45bc
/* ff00ff00 == { 0, 1.0, 0, 1.0 } */

/* Border Color */
#define R300_TX_BORDER_COLOR_0              0x45c0
#define R300_TX_BORDER_COLOR_1              0x45c4
#define R300_TX_BORDER_COLOR_2              0x45c8
#define R300_TX_BORDER_COLOR_3              0x45cc
#define R300_TX_BORDER_COLOR_4              0x45d0
#define R300_TX_BORDER_COLOR_5              0x45d4
#define R300_TX_BORDER_COLOR_6              0x45d8
#define R300_TX_BORDER_COLOR_7              0x45dc
#define R300_TX_BORDER_COLOR_8              0x45e0
#define R300_TX_BORDER_COLOR_9              0x45e4
#define R300_TX_BORDER_COLOR_10             0x45e8
#define R300_TX_BORDER_COLOR_11             0x45ec
#define R300_TX_BORDER_COLOR_12             0x45f0
#define R300_TX_BORDER_COLOR_13             0x45f4
#define R300_TX_BORDER_COLOR_14             0x45f8
#define R300_TX_BORDER_COLOR_15             0x45fc


/* END: Texture specification */

/* BEGIN: Fragment program instruction set */

/* Fragment programs are written directly into register space.
 * There are separate instruction streams for texture instructions and ALU
 * instructions.
 * In order to synchronize these streams, the program is divided into up
 * to 4 nodes. Each node begins with a number of TEX operations, followed
 * by a number of ALU operations.
 * The first node can have zero TEX ops, all subsequent nodes must have at
 * least
 * one TEX ops.
 * All nodes must have at least one ALU op.
 *
 * The index of the last node is stored in PFS_CNTL_0: A value of 0 means
 * 1 node, a value of 3 means 4 nodes.
 * The total amount of instructions is defined in PFS_CNTL_2. The offsets are
 * offsets into the respective instruction streams, while *_END points to the
 * last instruction relative to this offset.
 */
#define R300_US_CONFIG                      0x4600
#       define R300_PFS_CNTL_LAST_NODES_SHIFT    0
#       define R300_PFS_CNTL_LAST_NODES_MASK     (3 << 0)
#       define R300_PFS_CNTL_FIRST_NODE_HAS_TEX  (1 << 3)
#define R300_US_PIXSIZE                     0x4604
/* There is an unshifted value here which has so far always been equal to the
 * index of the highest used temporary register.
 */
#define R300_US_CODE_OFFSET                 0x4608
#       define R300_PFS_CNTL_ALU_OFFSET_SHIFT    0
#       define R300_PFS_CNTL_ALU_OFFSET_MASK     (63 << 0)
#       define R300_PFS_CNTL_ALU_END_SHIFT       6
#       define R300_PFS_CNTL_ALU_END_MASK        (63 << 6)
#       define R300_PFS_CNTL_TEX_OFFSET_SHIFT    13
#       define R300_PFS_CNTL_TEX_OFFSET_MASK     (31 << 13)
#       define R300_PFS_CNTL_TEX_END_SHIFT       18
#       define R300_PFS_CNTL_TEX_END_MASK        (31 << 18)

/* gap */

/* Nodes are stored backwards. The last active node is always stored in
 * PFS_NODE_3.
 * Example: In a 2-node program, NODE_0 and NODE_1 are set to 0. The
 * first node is stored in NODE_2, the second node is stored in NODE_3.
 *
 * Offsets are relative to the master offset from PFS_CNTL_2.
 */
#define R300_US_CODE_ADDR_0                 0x4610
#define R300_US_CODE_ADDR_1                 0x4614
#define R300_US_CODE_ADDR_2                 0x4618
#define R300_US_CODE_ADDR_3                 0x461C
#       define R300_ALU_START_SHIFT         0
#       define R300_ALU_START_MASK          (63 << 0)
#       define R300_ALU_SIZE_SHIFT          6
#       define R300_ALU_SIZE_MASK           (63 << 6)
#       define R300_TEX_START_SHIFT         12
#       define R300_TEX_START_MASK          (31 << 12)
#       define R300_TEX_SIZE_SHIFT          17
#       define R300_TEX_SIZE_MASK           (31 << 17)
#       define R300_RGBA_OUT                (1 << 22)
#       define R300_W_OUT                   (1 << 23)

/* TEX
 * As far as I can tell, texture instructions cannot write into output
 * registers directly. A subsequent ALU instruction is always necessary,
 * even if it's just MAD o0, r0, 1, 0
 */
#define R300_US_TEX_INST_0                  0x4620
#       define R300_SRC_ADDR_SHIFT          0
#       define R300_SRC_ADDR_MASK           (31 << 0)
#       define R300_DST_ADDR_SHIFT          6
#       define R300_DST_ADDR_MASK           (31 << 6)
#       define R300_TEX_ID_SHIFT            11
#       define R300_TEX_ID_MASK             (15 << 11)
#       define R300_TEX_INST_SHIFT              15
#               define R300_TEX_OP_NOP          0
#               define R300_TEX_OP_LD           1
#               define R300_TEX_OP_KIL          2
#               define R300_TEX_OP_TXP          3
#               define R300_TEX_OP_TXB          4
#       define R300_TEX_INST_MASK               (7 << 15)

/* Output format from the unfied shader */
#define R300_US_OUT_FMT_0                   0x46A4
#       define R300_US_OUT_FMT_C4_8         (0 << 0)
#       define R300_US_OUT_FMT_C4_10        (1 << 0)
#       define R300_US_OUT_FMT_C4_10_GAMMA  (2 << 0)
#       define R300_US_OUT_FMT_C_16         (3 << 0)
#       define R300_US_OUT_FMT_C2_16        (4 << 0)
#       define R300_US_OUT_FMT_C4_16        (5 << 0)
#       define R300_US_OUT_FMT_C_16_MPEG    (6 << 0)
#       define R300_US_OUT_FMT_C2_16_MPEG   (7 << 0)
#       define R300_US_OUT_FMT_C2_4         (8 << 0)
#       define R300_US_OUT_FMT_C_3_3_2      (9 << 0)
#       define R300_US_OUT_FMT_C_6_5_6      (10 << 0)
#       define R300_US_OUT_FMT_C_11_11_10   (11 << 0)
#       define R300_US_OUT_FMT_C_10_11_11   (12 << 0)
#       define R300_US_OUT_FMT_C_2_10_10_10 (13 << 0)
/* reserved */
#       define R300_US_OUT_FMT_UNUSED       (15 << 0)
#       define R300_US_OUT_FMT_C_16_FP      (16 << 0)
#       define R300_US_OUT_FMT_C2_16_FP     (17 << 0)
#       define R300_US_OUT_FMT_C4_16_FP     (18 << 0)
#       define R300_US_OUT_FMT_C_32_FP      (19 << 0)
#       define R300_US_OUT_FMT_C2_32_FP     (20 << 0)
#       define R300_US_OUT_FMT_C4_32_FP     (21 << 0)
#   define R300_C0_SEL_A                                (0 << 8)
#   define R300_C0_SEL_R                                (1 << 8)
#   define R300_C0_SEL_G                                (2 << 8)
#   define R300_C0_SEL_B                                (3 << 8)
#   define R300_C1_SEL_A                                (0 << 10)
#   define R300_C1_SEL_R                                (1 << 10)
#   define R300_C1_SEL_G                                (2 << 10)
#   define R300_C1_SEL_B                                (3 << 10)
#   define R300_C2_SEL_A                                (0 << 12)
#   define R300_C2_SEL_R                                (1 << 12)
#   define R300_C2_SEL_G                                (2 << 12)
#   define R300_C2_SEL_B                                (3 << 12)
#   define R300_C3_SEL_A                                (0 << 14)
#   define R300_C3_SEL_R                                (1 << 14)
#   define R300_C3_SEL_G                                (2 << 14)
#   define R300_C3_SEL_B                                (3 << 14)
#   define R300_OUT_SIGN(x)                             ((x) << 16)
#   define R500_ROUND_ADJ                               (1 << 20)

/* ALU
 * The ALU instructions register blocks are enumerated according to the order
 * in which fglrx. I assume there is space for 64 instructions, since
 * each block has space for a maximum of 64 DWORDs, and this matches reported
 * native limits.
 *
 * The basic functional block seems to be one MAD for each color and alpha,
 * and an adder that adds all components after the MUL.
 *  - ADD, MUL, MAD etc.: use MAD with appropriate neutral operands
 *  - DP4: Use OUTC_DP4, OUTA_DP4
 *  - DP3: Use OUTC_DP3, OUTA_DP4, appropriate alpha operands
 *  - DPH: Use OUTC_DP4, OUTA_DP4, appropriate alpha operands
 *  - CMPH: If ARG2 > 0.5, return ARG0, else return ARG1
 *  - CMP: If ARG2 < 0, return ARG1, else return ARG0
 *  - FLR: use FRC+MAD
 *  - XPD: use MAD+MAD
 *  - SGE, SLT: use MAD+CMP
 *  - RSQ: use ABS modifier for argument
 *  - Use OUTC_REPL_ALPHA to write results of an alpha-only operation
 *    (e.g. RCP) into color register
 *  - apparently, there's no quick DST operation
 *  - fglrx set FPI2_UNKNOWN_31 on a "MAD fragment.color, tmp0, tmp1, tmp2"
 *  - fglrx set FPI2_UNKNOWN_31 on a "MAX r2, r1, c0"
 *  - fglrx once set FPI0_UNKNOWN_31 on a "FRC r1, r1"
 *
 * Operand selection
 * First stage selects three sources from the available registers and
 * constant parameters. This is defined in INSTR1 (color) and INSTR3 (alpha).
 * fglrx sorts the three source fields: Registers before constants,
 * lower indices before higher indices; I do not know whether this is
 * necessary.
 *
 * fglrx fills unused sources with "read constant 0"
 * According to specs, you cannot select more than two different constants.
 *
 * Second stage selects the operands from the sources. This is defined in
 * INSTR0 (color) and INSTR2 (alpha). You can also select the special constants
 * zero and one.
 * Swizzling and negation happens in this stage, as well.
 *
 * Important: Color and alpha seem to be mostly separate, i.e. their sources
 * selection appears to be fully independent (the register storage is probably
 * physically split into a color and an alpha section).
 * However (because of the apparent physical split), there is some interaction
 * WRT swizzling. If, for example, you want to load an R component into an
 * Alpha operand, this R component is taken from a *color* source, not from
 * an alpha source. The corresponding register doesn't even have to appear in
 * the alpha sources list. (I hope this all makes sense to you)
 *
 * Destination selection
 * The destination register index is in FPI1 (color) and FPI3 (alpha)
 * together with enable bits.
 * There are separate enable bits for writing into temporary registers
 * (DSTC_REG_* /DSTA_REG) and and program output registers (DSTC_OUTPUT_*
 * /DSTA_OUTPUT). You can write to both at once, or not write at all (the
 * same index must be used for both).
 *
 * Note: There is a special form for LRP
 *  - Argument order is the same as in ARB_fragment_program.
 *  - Operation is MAD
 *  - ARG1 is set to ARGC_SRC1C_LRP/ARGC_SRC1A_LRP
 *  - Set FPI0/FPI2_SPECIAL_LRP
 * Arbitrary LRP (including support for swizzling) requires vanilla MAD+MAD
 */
#define R300_US_ALU_RGB_ADDR_0                   0x46C0
#       define R300_ALU_SRC0C_SHIFT             0
#       define R300_ALU_SRC0C_MASK              (31 << 0)
#       define R300_ALU_SRC0C_CONST             (1 << 5)
#       define R300_ALU_SRC1C_SHIFT             6
#       define R300_ALU_SRC1C_MASK              (31 << 6)
#       define R300_ALU_SRC1C_CONST             (1 << 11)
#       define R300_ALU_SRC2C_SHIFT             12
#       define R300_ALU_SRC2C_MASK              (31 << 12)
#       define R300_ALU_SRC2C_CONST             (1 << 17)
#       define R300_ALU_SRC_MASK                0x0003ffff
#       define R300_ALU_DSTC_SHIFT              18
#       define R300_ALU_DSTC_MASK               (31 << 18)
#               define R300_ALU_DSTC_REG_MASK_SHIFT     23
#       define R300_ALU_DSTC_REG_X              (1 << 23)
#       define R300_ALU_DSTC_REG_Y              (1 << 24)
#       define R300_ALU_DSTC_REG_Z              (1 << 25)
#               define R300_ALU_DSTC_OUTPUT_MASK_SHIFT  26
#       define R300_ALU_DSTC_OUTPUT_X           (1 << 26)
#       define R300_ALU_DSTC_OUTPUT_Y           (1 << 27)
#       define R300_ALU_DSTC_OUTPUT_Z           (1 << 28)
#       define R300_ALU_DSTC_OUTPUT_XYZ         (7 << 26)
#       define R300_RGB_ADDR0(x)                ((x) << 0)
#       define R300_RGB_ADDR1(x)                ((x) << 6)
#       define R300_RGB_ADDR2(x)                ((x) << 12)
#       define R300_RGB_TARGET(x)               ((x) << 29)

#define R300_US_ALU_ALPHA_ADDR_0                 0x47C0
#       define R300_ALU_SRC0A_SHIFT             0
#       define R300_ALU_SRC0A_MASK              (31 << 0)
#       define R300_ALU_SRC0A_CONST             (1 << 5)
#       define R300_ALU_SRC1A_SHIFT             6
#       define R300_ALU_SRC1A_MASK              (31 << 6)
#       define R300_ALU_SRC1A_CONST             (1 << 11)
#       define R300_ALU_SRC2A_SHIFT             12
#       define R300_ALU_SRC2A_MASK              (31 << 12)
#       define R300_ALU_SRC2A_CONST             (1 << 17)
#       define R300_ALU_SRC_MASK                0x0003ffff
#       define R300_ALU_DSTA_SHIFT              18
#       define R300_ALU_DSTA_MASK               (31 << 18)
#       define R300_ALU_DSTA_REG                (1 << 23)
#       define R300_ALU_DSTA_OUTPUT             (1 << 24)
#               define R300_ALU_DSTA_DEPTH              (1 << 27)
#       define R300_ALPHA_ADDR0(x)              ((x) << 0)
#       define R300_ALPHA_ADDR1(x)              ((x) << 6)
#       define R300_ALPHA_ADDR2(x)              ((x) << 12)
#       define R300_ALPHA_TARGET(x)             ((x) << 25)

#define R300_US_ALU_RGB_INST_0                   0x48C0
#       define R300_ALU_ARGC_SRC0C_XYZ          0
#       define R300_ALU_ARGC_SRC0C_XXX          1
#       define R300_ALU_ARGC_SRC0C_YYY          2
#       define R300_ALU_ARGC_SRC0C_ZZZ          3
#       define R300_ALU_ARGC_SRC1C_XYZ          4
#       define R300_ALU_ARGC_SRC1C_XXX          5
#       define R300_ALU_ARGC_SRC1C_YYY          6
#       define R300_ALU_ARGC_SRC1C_ZZZ          7
#       define R300_ALU_ARGC_SRC2C_XYZ          8
#       define R300_ALU_ARGC_SRC2C_XXX          9
#       define R300_ALU_ARGC_SRC2C_YYY          10
#       define R300_ALU_ARGC_SRC2C_ZZZ          11
#       define R300_ALU_ARGC_SRC0A              12
#       define R300_ALU_ARGC_SRC1A              13
#       define R300_ALU_ARGC_SRC2A              14
#       define R300_ALU_ARGC_SRCP_XYZ           15
#       define R300_ALU_ARGC_SRCP_XXX           16
#       define R300_ALU_ARGC_SRCP_YYY           17
#       define R300_ALU_ARGC_SRCP_ZZZ           18
#       define R300_ALU_ARGC_SRCP_WWW           19
#       define R300_ALU_ARGC_ZERO               20
#       define R300_ALU_ARGC_ONE                21
#       define R300_ALU_ARGC_HALF               22
#       define R300_ALU_ARGC_SRC0C_YZX          23
#       define R300_ALU_ARGC_SRC1C_YZX          24
#       define R300_ALU_ARGC_SRC2C_YZX          25
#       define R300_ALU_ARGC_SRC0C_ZXY          26
#       define R300_ALU_ARGC_SRC1C_ZXY          27
#       define R300_ALU_ARGC_SRC2C_ZXY          28
#       define R300_ALU_ARGC_SRC0CA_WZY         29
#       define R300_ALU_ARGC_SRC1CA_WZY         30
#       define R300_ALU_ARGC_SRC2CA_WZY         31
#       define R300_RGB_SWIZA(x)                ((x) << 0)
#       define R300_RGB_SWIZB(x)                ((x) << 7)
#       define R300_RGB_SWIZC(x)                ((x) << 14)

#       define R300_ALU_ARG0C_SHIFT             0
#       define R300_ALU_ARG0C_MASK              (31 << 0)
#       define R300_ALU_ARG0C_NOP               (0 << 5)
#       define R300_ALU_ARG0C_NEG               (1 << 5)
#       define R300_ALU_ARG0C_ABS               (2 << 5)
#       define R300_ALU_ARG0C_NAB               (3 << 5)
#       define R300_ALU_ARG1C_SHIFT             7
#       define R300_ALU_ARG1C_MASK              (31 << 7)
#       define R300_ALU_ARG1C_NOP               (0 << 12)
#       define R300_ALU_ARG1C_NEG               (1 << 12)
#       define R300_ALU_ARG1C_ABS               (2 << 12)
#       define R300_ALU_ARG1C_NAB               (3 << 12)
#       define R300_ALU_ARG2C_SHIFT             14
#       define R300_ALU_ARG2C_MASK              (31 << 14)
#       define R300_ALU_ARG2C_NOP               (0 << 19)
#       define R300_ALU_ARG2C_NEG               (1 << 19)
#       define R300_ALU_ARG2C_ABS               (2 << 19)
#       define R300_ALU_ARG2C_NAB               (3 << 19)
#       define R300_ALU_SRCP_1_MINUS_2_SRC0     (0 << 21)
#       define R300_ALU_SRCP_SRC1_MINUS_SRC0    (1 << 21)
#       define R300_ALU_SRCP_SRC1_PLUS_SRC0     (2 << 21)
#       define R300_ALU_SRCP_1_MINUS_SRC0       (3 << 21)

#       define R300_ALU_OUTC_MAD                (0 << 23)
#       define R300_ALU_OUTC_DP3                (1 << 23)
#       define R300_ALU_OUTC_DP4                (2 << 23)
#       define R300_ALU_OUTC_D2A                (3 << 23)
#       define R300_ALU_OUTC_MIN                (4 << 23)
#       define R300_ALU_OUTC_MAX                (5 << 23)
#       define R300_ALU_OUTC_CMPH               (7 << 23)
#       define R300_ALU_OUTC_CMP                (8 << 23)
#       define R300_ALU_OUTC_FRC                (9 << 23)
#       define R300_ALU_OUTC_REPL_ALPHA         (10 << 23)

#       define R300_ALU_OUTC_MOD_NOP            (0 << 27)
#       define R300_ALU_OUTC_MOD_MUL2           (1 << 27)
#       define R300_ALU_OUTC_MOD_MUL4           (2 << 27)
#       define R300_ALU_OUTC_MOD_MUL8           (3 << 27)
#       define R300_ALU_OUTC_MOD_DIV2           (4 << 27)
#       define R300_ALU_OUTC_MOD_DIV4           (5 << 27)
#       define R300_ALU_OUTC_MOD_DIV8           (6 << 27)

#       define R300_ALU_OUTC_CLAMP              (1 << 30)
#       define R300_ALU_INSERT_NOP              (1 << 31)

#define R300_US_ALU_ALPHA_INST_0                 0x49C0
#       define R300_ALU_ARGA_SRC0C_X            0
#       define R300_ALU_ARGA_SRC0C_Y            1
#       define R300_ALU_ARGA_SRC0C_Z            2
#       define R300_ALU_ARGA_SRC1C_X            3
#       define R300_ALU_ARGA_SRC1C_Y            4
#       define R300_ALU_ARGA_SRC1C_Z            5
#       define R300_ALU_ARGA_SRC2C_X            6
#       define R300_ALU_ARGA_SRC2C_Y            7
#       define R300_ALU_ARGA_SRC2C_Z            8
#       define R300_ALU_ARGA_SRC0A              9
#       define R300_ALU_ARGA_SRC1A              10
#       define R300_ALU_ARGA_SRC2A              11
#       define R300_ALU_ARGA_SRCP_X             12
#       define R300_ALU_ARGA_SRCP_Y             13
#       define R300_ALU_ARGA_SRCP_Z             14
#       define R300_ALU_ARGA_SRCP_W             15
#       define R300_ALU_ARGA_ZERO               16
#       define R300_ALU_ARGA_ONE                17
#       define R300_ALU_ARGA_HALF               18
#       define R300_ALPHA_SWIZA(x)              ((x) << 0)
#       define R300_ALPHA_SWIZB(x)              ((x) << 7)
#       define R300_ALPHA_SWIZC(x)              ((x) << 14)

#       define R300_ALU_ARG0A_SHIFT             0
#       define R300_ALU_ARG0A_MASK              (31 << 0)
#       define R300_ALU_ARG0A_NOP               (0 << 5)
#       define R300_ALU_ARG0A_NEG               (1 << 5)
#       define R300_ALU_ARG0A_ABS                (2 << 5)
#       define R300_ALU_ARG0A_NAB                (3 << 5)
#       define R300_ALU_ARG1A_SHIFT             7
#       define R300_ALU_ARG1A_MASK              (31 << 7)
#       define R300_ALU_ARG1A_NOP               (0 << 12)
#       define R300_ALU_ARG1A_NEG               (1 << 12)
#       define R300_ALU_ARG1A_ABS                (2 << 12)
#       define R300_ALU_ARG1A_NAB                (3 << 12)
#       define R300_ALU_ARG2A_SHIFT             14
#       define R300_ALU_ARG2A_MASK              (31 << 14)
#       define R300_ALU_ARG2A_NOP               (0 << 19)
#       define R300_ALU_ARG2A_NEG               (1 << 19)
#       define R300_ALU_ARG2A_ABS                (2 << 19)
#       define R300_ALU_ARG2A_NAB                (3 << 19)
#       define R300_ALU_SRCP_1_MINUS_2_SRC0     (0 << 21)
#       define R300_ALU_SRCP_SRC1_MINUS_SRC0    (1 << 21)
#       define R300_ALU_SRCP_SRC1_PLUS_SRC0     (2 << 21)
#       define R300_ALU_SRCP_1_MINUS_SRC0       (3 << 21)

#       define R300_ALU_OUTA_MAD                (0 << 23)
#       define R300_ALU_OUTA_DP4                (1 << 23)
#       define R300_ALU_OUTA_MIN                (2 << 23)
#       define R300_ALU_OUTA_MAX                (3 << 23)
#       define R300_ALU_OUTA_CND                (5 << 23)
#       define R300_ALU_OUTA_CMP                (6 << 23)
#       define R300_ALU_OUTA_FRC                (7 << 23)
#       define R300_ALU_OUTA_EX2                (8 << 23)
#       define R300_ALU_OUTA_LG2                (9 << 23)
#       define R300_ALU_OUTA_RCP                (10 << 23)
#       define R300_ALU_OUTA_RSQ                (11 << 23)

#       define R300_ALU_OUTA_MOD_NOP            (0 << 27)
#       define R300_ALU_OUTA_MOD_MUL2           (1 << 27)
#       define R300_ALU_OUTA_MOD_MUL4           (2 << 27)
#       define R300_ALU_OUTA_MOD_MUL8           (3 << 27)
#       define R300_ALU_OUTA_MOD_DIV2           (4 << 27)
#       define R300_ALU_OUTA_MOD_DIV4           (5 << 27)
#       define R300_ALU_OUTA_MOD_DIV8           (6 << 27)

#       define R300_ALU_OUTA_CLAMP              (1 << 30)
/* END: Fragment program instruction set */

/* Fog: Fog Blending Enable */
#define R300_FG_FOG_BLEND                             0x4bc0
#       define R300_FG_FOG_BLEND_DISABLE              (0 << 0)
#       define R300_FG_FOG_BLEND_ENABLE               (1 << 0)
#       define R300_FG_FOG_BLEND_FN_LINEAR            (0 << 1)
#       define R300_FG_FOG_BLEND_FN_EXP               (1 << 1)
#       define R300_FG_FOG_BLEND_FN_EXP2              (2 << 1)
#       define R300_FG_FOG_BLEND_FN_CONSTANT          (3 << 1)
#       define R300_FG_FOG_BLEND_FN_MASK              (3 << 1)

/* Fog: Red Component of Fog Color */
#define R300_FG_FOG_COLOR_R                           0x4bc8
/* Fog: Green Component of Fog Color */
#define R300_FG_FOG_COLOR_G                           0x4bcc
/* Fog: Blue Component of Fog Color */
#define R300_FG_FOG_COLOR_B                           0x4bd0
#       define R300_FG_FOG_COLOR_MASK 0x000003ff

/* Fog: Constant Factor for Fog Blending */
#define R300_FG_FOG_FACTOR                            0x4bc4
#       define FG_FOG_FACTOR_MASK 0x000003ff

/* Fog: Alpha function */
#define R300_FG_ALPHA_FUNC                            0x4bd4
#       define R300_FG_ALPHA_FUNC_VAL_MASK               0x000000ff
#       define R300_FG_ALPHA_FUNC_NEVER                     (0 << 8)
#       define R300_FG_ALPHA_FUNC_LESS                      (1 << 8)
#       define R300_FG_ALPHA_FUNC_EQUAL                     (2 << 8)
#       define R300_FG_ALPHA_FUNC_LE                        (3 << 8)
#       define R300_FG_ALPHA_FUNC_GREATER                   (4 << 8)
#       define R300_FG_ALPHA_FUNC_NOTEQUAL                  (5 << 8)
#       define R300_FG_ALPHA_FUNC_GE                        (6 << 8)
#       define R300_FG_ALPHA_FUNC_ALWAYS                    (7 << 8)
#       define R300_ALPHA_TEST_OP_MASK                      (7 << 8)
#       define R300_FG_ALPHA_FUNC_DISABLE                   (0 << 11)
#       define R300_FG_ALPHA_FUNC_ENABLE                    (1 << 11)

#       define R500_FG_ALPHA_FUNC_10BIT                     (0 << 12)
#       define R500_FG_ALPHA_FUNC_8BIT                      (1 << 12)

#       define R300_FG_ALPHA_FUNC_MASK_DISABLE              (0 << 16)
#       define R300_FG_ALPHA_FUNC_MASK_ENABLE               (1 << 16)
#       define R300_FG_ALPHA_FUNC_CFG_2_OF_4                (0 << 17)
#       define R300_FG_ALPHA_FUNC_CFG_3_OF_6                (1 << 17)

#       define R300_FG_ALPHA_FUNC_DITH_DISABLE              (0 << 20)
#       define R300_FG_ALPHA_FUNC_DITH_ENABLE               (1 << 20)

#       define R500_FG_ALPHA_FUNC_OFFSET_DISABLE            (0 << 24)
#       define R500_FG_ALPHA_FUNC_OFFSET_ENABLE             (1 << 24) /* Not supported in R520 */
#       define R500_FG_ALPHA_FUNC_DISC_ZERO_MASK_DISABLE    (0 << 25)
#       define R500_FG_ALPHA_FUNC_DISC_ZERO_MASK_ENABLE     (1 << 25)

#       define R500_FG_ALPHA_FUNC_FP16_DISABLE              (0 << 28)
#       define R500_FG_ALPHA_FUNC_FP16_ENABLE               (1 << 28)


/* Fog: Where does the depth come from? */
#define R300_FG_DEPTH_SRC                  0x4bd8
#       define R300_FG_DEPTH_SRC_SCAN   (0 << 0)
#       define R300_FG_DEPTH_SRC_SHADER (1 << 0)

/* Fog: Alpha Compare Value */
#define R500_FG_ALPHA_VALUE                0x4be0
#       define R500_FG_ALPHA_VALUE_MASK 0x0000ffff

#define RV530_FG_ZBREG_DEST                 0x4be8
#       define RV530_FG_ZBREG_DEST_PIPE_SELECT_0             (1 << 0)
#       define RV530_FG_ZBREG_DEST_PIPE_SELECT_1             (1 << 1)
#       define RV530_FG_ZBREG_DEST_PIPE_SELECT_ALL           (3 << 0)
/* gap */

/* Fragment program parameters in 7.16 floating point */
#define R300_PFS_PARAM_0_X                  0x4C00
#define R300_PFS_PARAM_0_Y                  0x4C04
#define R300_PFS_PARAM_0_Z                  0x4C08
#define R300_PFS_PARAM_0_W                  0x4C0C
/* last consts */
#define R300_PFS_PARAM_31_X                 0x4DF0
#define R300_PFS_PARAM_31_Y                 0x4DF4
#define R300_PFS_PARAM_31_Z                 0x4DF8
#define R300_PFS_PARAM_31_W                 0x4DFC

/* Unpipelined. */
#define R300_RB3D_CCTL                      0x4e00
#       define R300_RB3D_CCTL_NUM_MULTIWRITES(x)       (MAX2(((x)-1), 0) << 5)
#       define R300_RB3D_CCTL_NUM_MULTIWRITES_1_BUFFER                (0 << 5)
#       define R300_RB3D_CCTL_NUM_MULTIWRITES_2_BUFFERS               (1 << 5)
#       define R300_RB3D_CCTL_NUM_MULTIWRITES_3_BUFFERS               (2 << 5)
#       define R300_RB3D_CCTL_NUM_MULTIWRITES_4_BUFFERS               (3 << 5)
#       define R300_RB3D_CCTL_CLRCMP_FLIPE_DISABLE                    (0 << 7)
#       define R300_RB3D_CCTL_CLRCMP_FLIPE_ENABLE                     (1 << 7)
#       define R300_RB3D_CCTL_AA_COMPRESSION_DISABLE                  (0 << 9)
#       define R300_RB3D_CCTL_AA_COMPRESSION_ENABLE                   (1 << 9)
#       define R300_RB3D_CCTL_CMASK_DISABLE                           (0 << 10)
#       define R300_RB3D_CCTL_CMASK_ENABLE                            (1 << 10)
/* reserved */
#       define R300_RB3D_CCTL_INDEPENDENT_COLOR_CHANNEL_MASK_DISABLE  (0 << 12)
#       define R300_RB3D_CCTL_INDEPENDENT_COLOR_CHANNEL_MASK_ENABLE   (1 << 12)
#       define R300_RB3D_CCTL_WRITE_COMPRESSION_ENABLE                (0 << 13)
#       define R300_RB3D_CCTL_WRITE_COMPRESSION_DISABLE               (1 << 13)
#       define R300_RB3D_CCTL_INDEPENDENT_COLORFORMAT_ENABLE_DISABLE  (0 << 14)
#       define R300_RB3D_CCTL_INDEPENDENT_COLORFORMAT_ENABLE_ENABLE   (1 << 14)


/* Notes:
 * - AFAIK fglrx always sets BLEND_UNKNOWN when blending is used in
 *   the application
 * - AFAIK fglrx always sets BLEND_NO_SEPARATE when CBLEND and ABLEND
 *    are set to the same
 *   function (both registers are always set up completely in any case)
 * - Most blend flags are simply copied from R200 and not tested yet
 */
#define R300_RB3D_CBLEND                    0x4E04
#define R300_RB3D_ABLEND                    0x4E08
/* the following only appear in CBLEND */
#       define R300_ALPHA_BLEND_ENABLE         (1 << 0)
#       define R300_SEPARATE_ALPHA_ENABLE      (1 << 1)
#       define R300_READ_ENABLE                (1 << 2)
#       define R300_DISCARD_SRC_PIXELS_DIS     (0 << 3)
#       define R300_DISCARD_SRC_PIXELS_SRC_ALPHA_0     (1 << 3)
#       define R300_DISCARD_SRC_PIXELS_SRC_COLOR_0     (2 << 3)
#       define R300_DISCARD_SRC_PIXELS_SRC_ALPHA_COLOR_0     (3 << 3)
#       define R300_DISCARD_SRC_PIXELS_SRC_ALPHA_1     (4 << 3)
#       define R300_DISCARD_SRC_PIXELS_SRC_COLOR_1     (5 << 3)
#       define R300_DISCARD_SRC_PIXELS_SRC_ALPHA_COLOR_1     (6 << 3)
#       define R500_SRC_ALPHA_0_NO_READ                (1 << 30)
#       define R500_SRC_ALPHA_1_NO_READ                (1 << 31)

/* the following are shared between CBLEND and ABLEND */
#       define R300_FCN_MASK                         (3  << 12)
#       define R300_COMB_FCN_ADD_CLAMP               (0  << 12)
#       define R300_COMB_FCN_ADD_NOCLAMP             (1  << 12)
#       define R300_COMB_FCN_SUB_CLAMP               (2  << 12)
#       define R300_COMB_FCN_SUB_NOCLAMP             (3  << 12)
#       define R300_COMB_FCN_MIN                     (4  << 12)
#       define R300_COMB_FCN_MAX                     (5  << 12)
#       define R300_COMB_FCN_RSUB_CLAMP              (6  << 12)
#       define R300_COMB_FCN_RSUB_NOCLAMP            (7  << 12)
#       define R300_BLEND_GL_ZERO                    (32)
#       define R300_BLEND_GL_ONE                     (33)
#       define R300_BLEND_GL_SRC_COLOR               (34)
#       define R300_BLEND_GL_ONE_MINUS_SRC_COLOR     (35)
#       define R300_BLEND_GL_DST_COLOR               (36)
#       define R300_BLEND_GL_ONE_MINUS_DST_COLOR     (37)
#       define R300_BLEND_GL_SRC_ALPHA               (38)
#       define R300_BLEND_GL_ONE_MINUS_SRC_ALPHA     (39)
#       define R300_BLEND_GL_DST_ALPHA               (40)
#       define R300_BLEND_GL_ONE_MINUS_DST_ALPHA     (41)
#       define R300_BLEND_GL_SRC_ALPHA_SATURATE      (42)
#       define R300_BLEND_GL_CONST_COLOR             (43)
#       define R300_BLEND_GL_ONE_MINUS_CONST_COLOR   (44)
#       define R300_BLEND_GL_CONST_ALPHA             (45)
#       define R300_BLEND_GL_ONE_MINUS_CONST_ALPHA   (46)
#       define R300_BLEND_MASK                       (63)
#       define R300_SRC_BLEND_SHIFT                  (16)
#       define R300_DST_BLEND_SHIFT                  (24)

/* Constant color used by the blender. Pipelined through the blender.
 * Note: For R520, this field is ignored, use RB3D_CONSTANT_COLOR_GB__BLUE,
 * RB3D_CONSTANT_COLOR_GB__GREEN, etc. instead.
 */
#define R300_RB3D_BLEND_COLOR               0x4E10


/* 3D Color Channel Mask. If all the channels used in the current color format
 * are disabled, then the cb will discard all the incoming quads. Pipelined
 * through the blender.
 */
#define RB3D_COLOR_CHANNEL_MASK                  0x4E0C
#       define RB3D_COLOR_CHANNEL_MASK_BLUE_MASK0  (1 << 0)
#       define RB3D_COLOR_CHANNEL_MASK_GREEN_MASK0 (1 << 1)
#       define RB3D_COLOR_CHANNEL_MASK_RED_MASK0   (1 << 2)
#       define RB3D_COLOR_CHANNEL_MASK_ALPHA_MASK0 (1 << 3)
#       define RB3D_COLOR_CHANNEL_MASK_BLUE_MASK1  (1 << 4)
#       define RB3D_COLOR_CHANNEL_MASK_GREEN_MASK1 (1 << 5)
#       define RB3D_COLOR_CHANNEL_MASK_RED_MASK1   (1 << 6)
#       define RB3D_COLOR_CHANNEL_MASK_ALPHA_MASK1 (1 << 7)
#       define RB3D_COLOR_CHANNEL_MASK_BLUE_MASK2  (1 << 8)
#       define RB3D_COLOR_CHANNEL_MASK_GREEN_MASK2 (1 << 9)
#       define RB3D_COLOR_CHANNEL_MASK_RED_MASK2   (1 << 10)
#       define RB3D_COLOR_CHANNEL_MASK_ALPHA_MASK2 (1 << 11)
#       define RB3D_COLOR_CHANNEL_MASK_BLUE_MASK3  (1 << 12)
#       define RB3D_COLOR_CHANNEL_MASK_GREEN_MASK3 (1 << 13)
#       define RB3D_COLOR_CHANNEL_MASK_RED_MASK3   (1 << 14)
#       define RB3D_COLOR_CHANNEL_MASK_ALPHA_MASK3 (1 << 15)

/* Clear color that is used when the color mask is set to 00. Unpipelined.
 * Program this register with a 32-bit value in ARGB8888 or ARGB2101010
 * formats, ignoring the fields.
 */
#define RB3D_COLOR_CLEAR_VALUE                   0x4e14

/* gap */

/* Color Compare Color. Stalls the 2d/3d datapath until it is idle. */
#define RB3D_CLRCMP_CLR                     0x4e20

/* Color Compare Mask. Stalls the 2d/3d datapath until it is idle. */
#define RB3D_CLRCMP_MSK                     0x4e24

/* Color Buffer Address Offset of multibuffer 0. Unpipelined. */
#define R300_RB3D_COLOROFFSET0              0x4E28
#       define R300_COLOROFFSET_MASK             0xFFFFFFE0
/* Color Buffer Address Offset of multibuffer 1. Unpipelined. */
#define R300_RB3D_COLOROFFSET1              0x4E2C
/* Color Buffer Address Offset of multibuffer 2. Unpipelined. */
#define R300_RB3D_COLOROFFSET2              0x4E30
/* Color Buffer Address Offset of multibuffer 3. Unpipelined. */
#define R300_RB3D_COLOROFFSET3              0x4E34

/* Color buffer format and tiling control for all the multibuffers and the
 * pitch of multibuffer 0 to 3. Unpipelined. The cache must be empty before any
 * of the registers are changed.
 *
 * Bit 16: Larger tiles
 * Bit 17: 4x2 tiles
 * Bit 18: Extremely weird tile like, but some pixels duplicated?
 */
#define R300_RB3D_COLORPITCH0               0x4E38
#       define R300_COLORPITCH_MASK              0x00003FFE
#       define R300_COLOR_TILE_DISABLE            (0 << 16)
#       define R300_COLOR_TILE_ENABLE             (1 << 16)
#       define R300_COLOR_TILE(x)                 ((x) << 16)
#       define R300_COLOR_MICROTILE_DISABLE       (0 << 17)
#       define R300_COLOR_MICROTILE_ENABLE        (1 << 17)
#       define R300_COLOR_MICROTILE_ENABLE_SQUARE (2 << 17) /* Only available in 16-bit */
#       define R300_COLOR_MICROTILE(x)            ((x) << 17)
#       define R300_COLOR_ENDIAN_NO_SWAP          (0 << 19)
#       define R300_COLOR_ENDIAN_WORD_SWAP        (1 << 19)
#       define R300_COLOR_ENDIAN_DWORD_SWAP       (2 << 19)
#       define R300_COLOR_ENDIAN_HALF_DWORD_SWAP  (3 << 19)
#       define R500_COLOR_FORMAT_ARGB10101010     (0 << 21)
#       define R500_COLOR_FORMAT_UV1010           (1 << 21)
#       define R500_COLOR_FORMAT_CI8              (2 << 21) /* 2D only */
#       define R300_COLOR_FORMAT_ARGB1555         (3 << 21)
#       define R300_COLOR_FORMAT_RGB565           (4 << 21)
#       define R500_COLOR_FORMAT_ARGB2101010      (5 << 21)
#       define R300_COLOR_FORMAT_ARGB8888         (6 << 21)
#       define R300_COLOR_FORMAT_ARGB32323232     (7 << 21)
/* reserved */
#       define R300_COLOR_FORMAT_I8               (9 << 21)
#       define R300_COLOR_FORMAT_ARGB16161616     (10 << 21)
#       define R300_COLOR_FORMAT_VYUY             (11 << 21)
#       define R300_COLOR_FORMAT_YVYU             (12 << 21)
#       define R300_COLOR_FORMAT_UV88             (13 << 21)
#       define R500_COLOR_FORMAT_I10              (14 << 21)
#       define R300_COLOR_FORMAT_ARGB4444         (15 << 21)
#define R300_RB3D_COLORPITCH1               0x4E3C
#define R300_RB3D_COLORPITCH2               0x4E40
#define R300_RB3D_COLORPITCH3               0x4E44

/* gap */

/* Destination Color Buffer Cache Control/Status. If the cb is in e2 mode, then
 * a flush or free will not occur upon a write to this register, but a sync
 * will be immediately sent if one is requested. If both DC_FLUSH and DC_FREE
 * are zero but DC_FINISH is one, then a sync will be sent immediately -- the
 * cb will not wait for all the previous operations to complete before sending
 * the sync. Unpipelined except when DC_FINISH and DC_FREE are both set to
 * zero.
 *
 * Set to 0A before 3D operations, set to 02 afterwards.
 */
#define R300_RB3D_DSTCACHE_CTLSTAT               0x4e4c
#       define R300_RB3D_DSTCACHE_CTLSTAT_DC_FLUSH_NO_EFFECT         (0 << 0)
#       define R300_RB3D_DSTCACHE_CTLSTAT_DC_FLUSH_NO_EFFECT_1       (1 << 0)
#       define R300_RB3D_DSTCACHE_CTLSTAT_DC_FLUSH_FLUSH_DIRTY_3D    (2 << 0)
#       define R300_RB3D_DSTCACHE_CTLSTAT_DC_FLUSH_FLUSH_DIRTY_3D_1  (3 << 0)
#       define R300_RB3D_DSTCACHE_CTLSTAT_DC_FREE_NO_EFFECT          (0 << 2)
#       define R300_RB3D_DSTCACHE_CTLSTAT_DC_FREE_NO_EFFECT_1        (1 << 2)
#       define R300_RB3D_DSTCACHE_CTLSTAT_DC_FREE_FREE_3D_TAGS       (2 << 2)
#       define R300_RB3D_DSTCACHE_CTLSTAT_DC_FREE_FREE_3D_TAGS_1     (3 << 2)
#       define R300_RB3D_DSTCACHE_CTLSTAT_DC_FINISH_NO_SIGNAL        (0 << 4)
#       define R300_RB3D_DSTCACHE_CTLSTAT_DC_FINISH_SIGNAL           (1 << 4)

#define R300_RB3D_DITHER_CTL 0x4E50
#       define R300_RB3D_DITHER_CTL_DITHER_MODE_TRUNCATE         (0 << 0)
#       define R300_RB3D_DITHER_CTL_DITHER_MODE_ROUND            (1 << 0)
#       define R300_RB3D_DITHER_CTL_DITHER_MODE_LUT              (2 << 0)
/* reserved */
#       define R300_RB3D_DITHER_CTL_ALPHA_DITHER_MODE_TRUNCATE   (0 << 2)
#       define R300_RB3D_DITHER_CTL_ALPHA_DITHER_MODE_ROUND      (1 << 2)
#       define R300_RB3D_DITHER_CTL_ALPHA_DITHER_MODE_LUT        (2 << 2)
/* reserved */

/* Resolve buffer destination address. The cache must be empty before changing
 * this register if the cb is in resolve mode. Unpipelined
 */
#define R300_RB3D_AARESOLVE_OFFSET        0x4e80
#       define R300_RB3D_AARESOLVE_OFFSET_SHIFT 5
#       define R300_RB3D_AARESOLVE_OFFSET_MASK 0xffffffe0 /* At least according to the calculations of Christoph Brill */

/* Resolve Buffer Pitch and Tiling Control. The cache must be empty before
 * changing this register if the cb is in resolve mode. Unpipelined
 */
#define R300_RB3D_AARESOLVE_PITCH         0x4e84
#       define R300_RB3D_AARESOLVE_PITCH_SHIFT 1
#       define R300_RB3D_AARESOLVE_PITCH_MASK  0x00003ffe /* At least according to the calculations of Christoph Brill */

/* Resolve Buffer Control. Unpipelined */
#define R300_RB3D_AARESOLVE_CTL           0x4e88
#       define R300_RB3D_AARESOLVE_CTL_AARESOLVE_MODE_NORMAL   (0 << 0)
#       define R300_RB3D_AARESOLVE_CTL_AARESOLVE_MODE_RESOLVE  (1 << 0)
#       define R300_RB3D_AARESOLVE_CTL_AARESOLVE_GAMMA_10      (0 << 1)
#       define R300_RB3D_AARESOLVE_CTL_AARESOLVE_GAMMA_22      (1 << 1)
#       define R300_RB3D_AARESOLVE_CTL_AARESOLVE_ALPHA_SAMPLE0 (0 << 2)
#       define R300_RB3D_AARESOLVE_CTL_AARESOLVE_ALPHA_AVERAGE (1 << 2)


/* Discard src pixels less than or equal to threshold. */
#define R500_RB3D_DISCARD_SRC_PIXEL_LTE_THRESHOLD 0x4ea0
/* Discard src pixels greater than or equal to threshold. */
#define R500_RB3D_DISCARD_SRC_PIXEL_GTE_THRESHOLD 0x4ea4
#       define R500_RB3D_DISCARD_SRC_PIXEL_THRESHOLD_BLUE_SHIFT 0
#       define R500_RB3D_DISCARD_SRC_PIXEL_THRESHOLD_BLUE_MASK 0x000000ff
#       define R500_RB3D_DISCARD_SRC_PIXEL_THRESHOLD_GREEN_SHIFT 8
#       define R500_RB3D_DISCARD_SRC_PIXEL_THRESHOLD_GREEN_MASK 0x0000ff00
#       define R500_RB3D_DISCARD_SRC_PIXEL_THRESHOLD_RED_SHIFT 16
#       define R500_RB3D_DISCARD_SRC_PIXEL_THRESHOLD_RED_MASK 0x00ff0000
#       define R500_RB3D_DISCARD_SRC_PIXEL_THRESHOLD_ALPHA_SHIFT 24
#       define R500_RB3D_DISCARD_SRC_PIXEL_THRESHOLD_ALPHA_MASK 0xff000000

/* 3D ROP Control. Stalls the 2d/3d datapath until it is idle. */
#define R300_RB3D_ROPCNTL                             0x4e18
#       define R300_RB3D_ROPCNTL_ROP_ENABLE            0x00000004
#       define R300_RB3D_ROPCNTL_ROP_MASK              (15 << 8)
#       define R300_RB3D_ROPCNTL_ROP_SHIFT             8

/* Color Compare Flip. Stalls the 2d/3d datapath until it is idle. */
#define R300_RB3D_CLRCMP_FLIPE                        0x4e1c

/* Sets the fifo sizes */
#define R500_RB3D_FIFO_SIZE                           0x4ef4
#       define R500_RB3D_FIFO_SIZE_OP_FIFO_SIZE_FULL   (0 << 0)
#       define R500_RB3D_FIFO_SIZE_OP_FIFO_SIZE_HALF   (1 << 0)
#       define R500_RB3D_FIFO_SIZE_OP_FIFO_SIZE_QUATER (2 << 0)
#       define R500_RB3D_FIFO_SIZE_OP_FIFO_SIZE_EIGTHS (3 << 0)

/* Constant color used by the blender. Pipelined through the blender. */
#define R500_RB3D_CONSTANT_COLOR_AR                   0x4ef8
#       define R500_RB3D_CONSTANT_COLOR_AR_RED_MASK    0x0000ffff
#       define R500_RB3D_CONSTANT_COLOR_AR_RED_SHIFT   0
#       define R500_RB3D_CONSTANT_COLOR_AR_ALPHA_MASK  0xffff0000
#       define R500_RB3D_CONSTANT_COLOR_AR_ALPHA_SHIFT 16

/* Constant color used by the blender. Pipelined through the blender. */
#define R500_RB3D_CONSTANT_COLOR_GB                   0x4efc
#       define R500_RB3D_CONSTANT_COLOR_AR_BLUE_MASK   0x0000ffff
#       define R500_RB3D_CONSTANT_COLOR_AR_BLUE_SHIFT  0
#       define R500_RB3D_CONSTANT_COLOR_AR_GREEN_MASK  0xffff0000
#       define R500_RB3D_CONSTANT_COLOR_AR_GREEN_SHIFT 16

/* gap */
/* There seems to be no "write only" setting, so use Z-test = ALWAYS
 * for this.
 * Bit (1<<8) is the "test" bit. so plain write is 6  - vd
 */
#define R300_ZB_CNTL                             0x4F00
#       define R300_STENCIL_ENABLE               (1 << 0)
#       define R300_Z_ENABLE                     (1 << 1)
#       define R300_Z_WRITE_ENABLE               (1 << 2)
#       define R300_Z_SIGNED_COMPARE             (1 << 3)
#       define R300_STENCIL_FRONT_BACK           (1 << 4)
#   define R500_STENCIL_ZSIGNED_MAGNITUDE (1 << 5)
#   define R500_STENCIL_REFMASK_FRONT_BACK (1 << 6)

#define R300_ZB_ZSTENCILCNTL                   0x4f04
        /* functions */
#       define R300_ZS_NEVER                    0
#       define R300_ZS_LESS                     1
#       define R300_ZS_LEQUAL                   2
#       define R300_ZS_EQUAL                    3
#       define R300_ZS_GEQUAL                   4
#       define R300_ZS_GREATER                  5
#       define R300_ZS_NOTEQUAL                 6
#       define R300_ZS_ALWAYS                   7
#       define R300_ZS_MASK                     7
        /* operations */
#       define R300_ZS_KEEP                     0
#       define R300_ZS_ZERO                     1
#       define R300_ZS_REPLACE                  2
#       define R300_ZS_INCR                     3
#       define R300_ZS_DECR                     4
#       define R300_ZS_INVERT                   5
#       define R300_ZS_INCR_WRAP                6
#       define R300_ZS_DECR_WRAP                7
#       define R300_Z_FUNC_SHIFT                0
        /* front and back refer to operations done for front
           and back faces, i.e. separate stencil function support */
#       define R300_S_FRONT_FUNC_SHIFT          3
#       define R300_S_FRONT_SFAIL_OP_SHIFT      6
#       define R300_S_FRONT_ZPASS_OP_SHIFT      9
#       define R300_S_FRONT_ZFAIL_OP_SHIFT      12
#       define R300_S_BACK_FUNC_SHIFT           15
#       define R300_S_BACK_SFAIL_OP_SHIFT       18
#       define R300_S_BACK_ZPASS_OP_SHIFT       21
#       define R300_S_BACK_ZFAIL_OP_SHIFT       24

#define R300_ZB_STENCILREFMASK                        0x4f08
#       define R300_STENCILREF_SHIFT       0
#       define R300_STENCILREF_MASK        0x000000ff
#       define R300_STENCILMASK_SHIFT      8
#       define R300_STENCILMASK_MASK       0x0000ff00
#       define R300_STENCILWRITEMASK_SHIFT 16
#       define R300_STENCILWRITEMASK_MASK  0x00ff0000

/* gap */

#define R300_ZB_FORMAT                             0x4f10
#       define R300_DEPTHFORMAT_16BIT_INT_Z   (0 << 0)
#       define R300_DEPTHFORMAT_16BIT_13E3    (1 << 0)
#       define R300_DEPTHFORMAT_24BIT_INT_Z_8BIT_STENCIL   (2 << 0)
/* reserved up to (15 << 0) */
#       define R300_INVERT_13E3_LEADING_ONES  (0 << 4)
#       define R300_INVERT_13E3_LEADING_ZEROS (1 << 4)

#define R300_ZB_ZTOP                             0x4F14
#       define R300_ZTOP_DISABLE                 (0 << 0)
#       define R300_ZTOP_ENABLE                  (1 << 0)

/* gap */

#define R300_ZB_ZCACHE_CTLSTAT            0x4f18
#       define R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_NO_EFFECT      (0 << 0)
#       define R300_ZB_ZCACHE_CTLSTAT_ZC_FLUSH_FLUSH_AND_FREE (1 << 0)
#       define R300_ZB_ZCACHE_CTLSTAT_ZC_FREE_NO_EFFECT       (0 << 1)
#       define R300_ZB_ZCACHE_CTLSTAT_ZC_FREE_FREE            (1 << 1)
#       define R300_ZB_ZCACHE_CTLSTAT_ZC_BUSY_IDLE            (0 << 31)
#       define R300_ZB_ZCACHE_CTLSTAT_ZC_BUSY_BUSY            (1 << 31)

#define R300_ZB_BW_CNTL                     0x4f1c
#       define R300_HIZ_DISABLE                              (0 << 0)
#       define R300_HIZ_ENABLE                               (1 << 0)
#       define R300_HIZ_MIN                                  (0 << 1)
#       define R300_HIZ_MAX                                  (1 << 1)
#       define R300_FAST_FILL_DISABLE                        (0 << 2)
#       define R300_FAST_FILL_ENABLE                         (1 << 2)
#       define R300_RD_COMP_DISABLE                          (0 << 3)
#       define R300_RD_COMP_ENABLE                           (1 << 3)
#       define R300_WR_COMP_DISABLE                          (0 << 4)
#       define R300_WR_COMP_ENABLE                           (1 << 4)
#       define R300_ZB_CB_CLEAR_RMW                          (0 << 5)
#       define R300_ZB_CB_CLEAR_CACHE_LINEAR                 (1 << 5)
#       define R300_FORCE_COMPRESSED_STENCIL_VALUE_DISABLE   (0 << 6)
#       define R300_FORCE_COMPRESSED_STENCIL_VALUE_ENABLE    (1 << 6)

#       define R500_ZEQUAL_OPTIMIZE_ENABLE                   (0 << 7)
#       define R500_ZEQUAL_OPTIMIZE_DISABLE                  (1 << 7)
#       define R500_SEQUAL_OPTIMIZE_ENABLE                   (0 << 8)
#       define R500_SEQUAL_OPTIMIZE_DISABLE                  (1 << 8)

#       define R500_BMASK_ENABLE                             (0 << 10)
#       define R500_BMASK_DISABLE                            (1 << 10)
#       define R500_HIZ_EQUAL_REJECT_DISABLE                 (0 << 11)
#       define R500_HIZ_EQUAL_REJECT_ENABLE                  (1 << 11)
#       define R500_HIZ_FP_EXP_BITS_DISABLE                  (0 << 12)
#       define R500_HIZ_FP_EXP_BITS_1                        (1 << 12)
#       define R500_HIZ_FP_EXP_BITS_2                        (2 << 12)
#       define R500_HIZ_FP_EXP_BITS_3                        (3 << 12)
#       define R500_HIZ_FP_EXP_BITS_4                        (4 << 12)
#       define R500_HIZ_FP_EXP_BITS_5                        (5 << 12)
#       define R500_HIZ_FP_INVERT_LEADING_ONES               (0 << 15)
#       define R500_HIZ_FP_INVERT_LEADING_ZEROS              (1 << 15)
#       define R500_TILE_OVERWRITE_RECOMPRESSION_ENABLE      (0 << 16)
#       define R500_TILE_OVERWRITE_RECOMPRESSION_DISABLE     (1 << 16)
#       define R500_CONTIGUOUS_6XAA_SAMPLES_ENABLE           (0 << 17)
#       define R500_CONTIGUOUS_6XAA_SAMPLES_DISABLE          (1 << 17)
#       define R500_PEQ_PACKING_DISABLE                      (0 << 18)
#       define R500_PEQ_PACKING_ENABLE                       (1 << 18)
#       define R500_COVERED_PTR_MASKING_DISABLE              (0 << 18)
#       define R500_COVERED_PTR_MASKING_ENABLE               (1 << 18)


/* gap */

/* Z Buffer Address Offset.
 * Bits 31 to 5 are used for aligned Z buffer address offset for macro tiles.
 */
#define R300_ZB_DEPTHOFFSET               0x4f20

/* Z Buffer Pitch and Endian Control */
#define R300_ZB_DEPTHPITCH                0x4f24
#       define R300_DEPTHPITCH_MASK              0x00003FFC
#       define R300_DEPTHMACROTILE_DISABLE      (0 << 16)
#       define R300_DEPTHMACROTILE_ENABLE       (1 << 16)
#       define R300_DEPTHMACROTILE(x)           ((x) << 16)
#       define R300_DEPTHMICROTILE_LINEAR       (0 << 17)
#       define R300_DEPTHMICROTILE_TILED        (1 << 17)
#       define R300_DEPTHMICROTILE_TILED_SQUARE (2 << 17)
#       define R300_DEPTHMICROTILE(x)           ((x) << 17)
#       define R300_DEPTHENDIAN_NO_SWAP         (0 << 18)
#       define R300_DEPTHENDIAN_WORD_SWAP       (1 << 18)
#       define R300_DEPTHENDIAN_DWORD_SWAP      (2 << 18)
#       define R300_DEPTHENDIAN_HALF_DWORD_SWAP (3 << 18)

/* Z Buffer Clear Value */
#define R300_ZB_DEPTHCLEARVALUE                  0x4f28

/* Hierarchical Z Memory Offset */
#define R300_ZB_HIZ_OFFSET                       0x4f44

/* Hierarchical Z Write Index */
#define R300_ZB_HIZ_WRINDEX                      0x4f48

/* Hierarchical Z Data */
#define R300_ZB_HIZ_DWORD                        0x4f4c

/* Hierarchical Z Read Index */
#define R300_ZB_HIZ_RDINDEX                      0x4f50

/* Hierarchical Z Pitch */
#define R300_ZB_HIZ_PITCH                        0x4f54

/* Z Buffer Z Pass Counter Data */
#define R300_ZB_ZPASS_DATA                       0x4f58

/* Z Buffer Z Pass Counter Address */
#define R300_ZB_ZPASS_ADDR                       0x4f5c

/* Depth buffer X and Y coordinate offset */
#define R300_ZB_DEPTHXY_OFFSET                   0x4f60
#       define R300_DEPTHX_OFFSET_SHIFT  1
#       define R300_DEPTHX_OFFSET_MASK   0x000007FE
#       define R300_DEPTHY_OFFSET_SHIFT  17
#       define R300_DEPTHY_OFFSET_MASK   0x07FE0000

/* Sets the fifo sizes */
#define R500_ZB_FIFO_SIZE                        0x4fd0
#       define R500_OP_FIFO_SIZE_FULL   (0 << 0)
#       define R500_OP_FIFO_SIZE_HALF   (1 << 0)
#       define R500_OP_FIFO_SIZE_QUATER (2 << 0)
#       define R500_OP_FIFO_SIZE_EIGTHS (4 << 0)

/* Stencil Reference Value and Mask for backfacing quads */
/* R300_ZB_STENCILREFMASK handles front face */
#define R500_ZB_STENCILREFMASK_BF                0x4fd4
#       define R500_STENCILREF_SHIFT       0
#       define R500_STENCILREF_MASK        0x000000ff
#       define R500_STENCILMASK_SHIFT      8
#       define R500_STENCILMASK_MASK       0x0000ff00
#       define R500_STENCILWRITEMASK_SHIFT 16
#       define R500_STENCILWRITEMASK_MASK  0x00ff0000

/**
 * \defgroup R3XX_R5XX_PROGRAMMABLE_VERTEX_SHADER_DESCRIPTION R3XX-R5XX PROGRAMMABLE VERTEX SHADER DESCRIPTION
 *
 * The PVS_DST_MATH_INST is used to identify whether the instruction is a Vector
 * Engine instruction or a Math Engine instruction.
 */

/*\{*/

enum {
        /* R3XX */
        VECTOR_NO_OP                    = 0,
        VE_DOT_PRODUCT                  = 1,
        VE_MULTIPLY                     = 2,
        VE_ADD                          = 3,
        VE_MULTIPLY_ADD                 = 4,
        VE_DISTANCE_VECTOR              = 5,
        VE_FRACTION                     = 6,
        VE_MAXIMUM                      = 7,
        VE_MINIMUM                      = 8,
        VE_SET_GREATER_THAN_EQUAL       = 9,
        VE_SET_LESS_THAN                = 10,
        VE_MULTIPLYX2_ADD               = 11,
        VE_MULTIPLY_CLAMP               = 12,
        VE_FLT2FIX_DX                   = 13,
        VE_FLT2FIX_DX_RND               = 14,
        /* R5XX */
        VE_PRED_SET_EQ_PUSH             = 15,
        VE_PRED_SET_GT_PUSH             = 16,
        VE_PRED_SET_GTE_PUSH            = 17,
        VE_PRED_SET_NEQ_PUSH            = 18,
        VE_COND_WRITE_EQ                = 19,
        VE_COND_WRITE_GT                = 20,
        VE_COND_WRITE_GTE               = 21,
        VE_COND_WRITE_NEQ               = 22,
        VE_COND_MUX_EQ                  = 23,
        VE_COND_MUX_GT                  = 24,
        VE_COND_MUX_GTE                 = 25,
        VE_SET_GREATER_THAN             = 26,
        VE_SET_EQUAL                    = 27,
        VE_SET_NOT_EQUAL                = 28
};

enum {
        /* R3XX */
        MATH_NO_OP                      = 0,
        ME_EXP_BASE2_DX                 = 1,
        ME_LOG_BASE2_DX                 = 2,
        ME_EXP_BASEE_FF                 = 3,
        ME_LIGHT_COEFF_DX               = 4,
        ME_POWER_FUNC_FF                = 5,
        ME_RECIP_DX                     = 6,
        ME_RECIP_FF                     = 7,
        ME_RECIP_SQRT_DX                = 8,
        ME_RECIP_SQRT_FF                = 9,
        ME_MULTIPLY                     = 10,
        ME_EXP_BASE2_FULL_DX            = 11,
        ME_LOG_BASE2_FULL_DX            = 12,
        ME_POWER_FUNC_FF_CLAMP_B        = 13,
        ME_POWER_FUNC_FF_CLAMP_B1       = 14,
        ME_POWER_FUNC_FF_CLAMP_01       = 15,
        ME_SIN                          = 16,
        ME_COS                          = 17,
        /* R5XX */
        ME_LOG_BASE2_IEEE               = 18,
        ME_RECIP_IEEE                   = 19,
        ME_RECIP_SQRT_IEEE              = 20,
        ME_PRED_SET_EQ                  = 21,
        ME_PRED_SET_GT                  = 22,
        ME_PRED_SET_GTE                 = 23,
        ME_PRED_SET_NEQ                 = 24,
        ME_PRED_SET_CLR                 = 25,
        ME_PRED_SET_INV                 = 26,
        ME_PRED_SET_POP                 = 27,
        ME_PRED_SET_RESTORE             = 28
};

enum {
        /* R3XX */
        PVS_MACRO_OP_2CLK_MADD          = 0,
        PVS_MACRO_OP_2CLK_M2X_ADD       = 1
};

enum {
        PVS_SRC_REG_TEMPORARY           = 0,    /* Intermediate Storage */
        PVS_SRC_REG_INPUT               = 1,    /* Input Vertex Storage */
        PVS_SRC_REG_CONSTANT            = 2,    /* Constant State Storage */
        PVS_SRC_REG_ALT_TEMPORARY       = 3     /* Alternate Intermediate Storage */
};

enum {
        PVS_DST_REG_TEMPORARY           = 0,    /* Intermediate Storage */
        PVS_DST_REG_A0                  = 1,    /* Address Register Storage */
        PVS_DST_REG_OUT                 = 2,    /* Output Memory. Used for all outputs */
        PVS_DST_REG_OUT_REPL_X          = 3,    /* Output Memory & Replicate X to all channels */
        PVS_DST_REG_ALT_TEMPORARY       = 4,    /* Alternate Intermediate Storage */
        PVS_DST_REG_INPUT               = 5     /* Output Memory & Replicate X to all channels */
};

enum {
        PVS_SRC_SELECT_X                = 0,    /* Select X Component */
        PVS_SRC_SELECT_Y                = 1,    /* Select Y Component */
        PVS_SRC_SELECT_Z                = 2,    /* Select Z Component */
        PVS_SRC_SELECT_W                = 3,    /* Select W Component */
        PVS_SRC_SELECT_FORCE_0          = 4,    /* Force Component to 0.0 */
        PVS_SRC_SELECT_FORCE_1          = 5     /* Force Component to 1.0 */
};

/* PVS Opcode & Destination Operand Description */

enum {
        PVS_DST_OPCODE_MASK             = 0x3f,
        PVS_DST_OPCODE_SHIFT            = 0,
        PVS_DST_MATH_INST_MASK          = 0x1,
        PVS_DST_MATH_INST_SHIFT         = 6,
        PVS_DST_MACRO_INST_MASK         = 0x1,
        PVS_DST_MACRO_INST_SHIFT        = 7,
        PVS_DST_REG_TYPE_MASK           = 0xf,
        PVS_DST_REG_TYPE_SHIFT          = 8,
        PVS_DST_ADDR_MODE_1_MASK        = 0x1,
        PVS_DST_ADDR_MODE_1_SHIFT       = 12,
        PVS_DST_OFFSET_MASK             = 0x7f,
        PVS_DST_OFFSET_SHIFT            = 13,
        PVS_DST_WE_X_MASK               = 0x1,
        PVS_DST_WE_X_SHIFT              = 20,
        PVS_DST_WE_Y_MASK               = 0x1,
        PVS_DST_WE_Y_SHIFT              = 21,
        PVS_DST_WE_Z_MASK               = 0x1,
        PVS_DST_WE_Z_SHIFT              = 22,
        PVS_DST_WE_W_MASK               = 0x1,
        PVS_DST_WE_W_SHIFT              = 23,
        PVS_DST_VE_SAT_MASK             = 0x1,
        PVS_DST_VE_SAT_SHIFT            = 24,
        PVS_DST_ME_SAT_MASK             = 0x1,
        PVS_DST_ME_SAT_SHIFT            = 25,
        PVS_DST_PRED_ENABLE_MASK        = 0x1,
        PVS_DST_PRED_ENABLE_SHIFT       = 26,
        PVS_DST_PRED_SENSE_MASK         = 0x1,
        PVS_DST_PRED_SENSE_SHIFT        = 27,
        PVS_DST_DUAL_MATH_OP_MASK       = 0x3,
        PVS_DST_DUAL_MATH_OP_SHIFT      = 27,
        PVS_DST_ADDR_SEL_MASK           = 0x3,
        PVS_DST_ADDR_SEL_SHIFT          = 29,
        PVS_DST_ADDR_MODE_0_MASK        = 0x1,
        PVS_DST_ADDR_MODE_0_SHIFT       = 31
};

/* PVS Source Operand Description */

enum {
        PVS_SRC_REG_TYPE_MASK           = 0x3,
        PVS_SRC_REG_TYPE_SHIFT          = 0,
        SPARE_0_MASK                    = 0x1,
        SPARE_0_SHIFT                   = 2,
        PVS_SRC_ABS_XYZW_MASK           = 0x1,
        PVS_SRC_ABS_XYZW_SHIFT          = 3,
        PVS_SRC_ADDR_MODE_0_MASK        = 0x1,
        PVS_SRC_ADDR_MODE_0_SHIFT       = 4,
        PVS_SRC_OFFSET_MASK             = 0xff,
        PVS_SRC_OFFSET_SHIFT            = 5,
        PVS_SRC_SWIZZLE_X_MASK          = 0x7,
        PVS_SRC_SWIZZLE_X_SHIFT         = 13,
        PVS_SRC_SWIZZLE_Y_MASK          = 0x7,
        PVS_SRC_SWIZZLE_Y_SHIFT         = 16,
        PVS_SRC_SWIZZLE_Z_MASK          = 0x7,
        PVS_SRC_SWIZZLE_Z_SHIFT         = 19,
        PVS_SRC_SWIZZLE_W_MASK          = 0x7,
        PVS_SRC_SWIZZLE_W_SHIFT         = 22,
        PVS_SRC_MODIFIER_X_MASK         = 0x1,
        PVS_SRC_MODIFIER_X_SHIFT        = 25,
        PVS_SRC_MODIFIER_Y_MASK         = 0x1,
        PVS_SRC_MODIFIER_Y_SHIFT        = 26,
        PVS_SRC_MODIFIER_Z_MASK         = 0x1,
        PVS_SRC_MODIFIER_Z_SHIFT        = 27,
        PVS_SRC_MODIFIER_W_MASK         = 0x1,
        PVS_SRC_MODIFIER_W_SHIFT        = 28,
        PVS_SRC_ADDR_SEL_MASK           = 0x3,
        PVS_SRC_ADDR_SEL_SHIFT          = 29,
        PVS_SRC_ADDR_MODE_1_MASK        = 0x0,
        PVS_SRC_ADDR_MODE_1_SHIFT       = 32
};

/*\}*/

/* BEGIN: Packet 3 commands */

/* A primitive emission dword. */
#define R300_PRIM_TYPE_NONE                     (0 << 0)
#define R300_PRIM_TYPE_POINT                    (1 << 0)
#define R300_PRIM_TYPE_LINE                     (2 << 0)
#define R300_PRIM_TYPE_LINE_STRIP               (3 << 0)
#define R300_PRIM_TYPE_TRI_LIST                 (4 << 0)
#define R300_PRIM_TYPE_TRI_FAN                  (5 << 0)
#define R300_PRIM_TYPE_TRI_STRIP                (6 << 0)
#define R300_PRIM_TYPE_TRI_TYPE2                (7 << 0)
#define R300_PRIM_TYPE_RECT_LIST                (8 << 0)
#define R300_PRIM_TYPE_3VRT_POINT_LIST          (9 << 0)
#define R300_PRIM_TYPE_3VRT_LINE_LIST           (10 << 0)
        /* GUESS (based on r200) */
#define R300_PRIM_TYPE_POINT_SPRITES            (11 << 0)
#define R300_PRIM_TYPE_LINE_LOOP                (12 << 0)
#define R300_PRIM_TYPE_QUADS                    (13 << 0)
#define R300_PRIM_TYPE_QUAD_STRIP               (14 << 0)
#define R300_PRIM_TYPE_POLYGON                  (15 << 0)
#define R300_PRIM_TYPE_MASK                     0xF
#define R300_PRIM_WALK_IND                      (1 << 4)
#define R300_PRIM_WALK_LIST                     (2 << 4)
#define R300_PRIM_WALK_RING                     (3 << 4)
#define R300_PRIM_WALK_MASK                     (3 << 4)
        /* GUESS (based on r200) */
#define R300_PRIM_COLOR_ORDER_BGRA              (0 << 6)
#define R300_PRIM_COLOR_ORDER_RGBA              (1 << 6)
#define R300_PRIM_NUM_VERTICES_SHIFT            16
#define R300_PRIM_NUM_VERTICES_MASK             0xffff



/*
 * The R500 unified shader (US) registers come in banks of 512 each, one
 * for each instruction slot in the shader.  You can't touch them directly.
 * R500_US_VECTOR_INDEX() sets the base instruction to modify; successive
 * writes to R500_GA_US_VECTOR_DATA autoincrement the index after the
 * instruction is fully specified.
 */
#define R500_US_ALU_ALPHA_INST_0                        0xa800
#   define R500_ALPHA_OP_MAD                            0
#   define R500_ALPHA_OP_DP                             1
#   define R500_ALPHA_OP_MIN                            2
#   define R500_ALPHA_OP_MAX                            3
/* #define R500_ALPHA_OP_RESERVED                       4 */
#   define R500_ALPHA_OP_CND                            5
#   define R500_ALPHA_OP_CMP                            6
#   define R500_ALPHA_OP_FRC                            7
#   define R500_ALPHA_OP_EX2                            8
#   define R500_ALPHA_OP_LN2                            9
#   define R500_ALPHA_OP_RCP                            10
#   define R500_ALPHA_OP_RSQ                            11
#   define R500_ALPHA_OP_SIN                            12
#   define R500_ALPHA_OP_COS                            13
#   define R500_ALPHA_OP_MDH                            14
#   define R500_ALPHA_OP_MDV                            15
#   define R500_ALPHA_ADDRD(x)                          ((x) << 4)
#   define R500_ALPHA_ADDRD_REL                         (1 << 11)
#  define R500_ALPHA_SEL_A_SHIFT                        12
#   define R500_ALPHA_SEL_A_SRC0                        (0 << 12)
#   define R500_ALPHA_SEL_A_SRC1                        (1 << 12)
#   define R500_ALPHA_SEL_A_SRC2                        (2 << 12)
#   define R500_ALPHA_SEL_A_SRCP                        (3 << 12)
#   define R500_ALPHA_SWIZ_A_R                          (0 << 14)
#   define R500_ALPHA_SWIZ_A_G                          (1 << 14)
#   define R500_ALPHA_SWIZ_A_B                          (2 << 14)
#   define R500_ALPHA_SWIZ_A_A                          (3 << 14)
#   define R500_ALPHA_SWIZ_A_0                          (4 << 14)
#   define R500_ALPHA_SWIZ_A_HALF                       (5 << 14)
#   define R500_ALPHA_SWIZ_A_1                          (6 << 14)
/* #define R500_ALPHA_SWIZ_A_UNUSED                     (7 << 14) */
#   define R500_ALPHA_MOD_A_NOP                         (0 << 17)
#   define R500_ALPHA_MOD_A_NEG                         (1 << 17)
#   define R500_ALPHA_MOD_A_ABS                         (2 << 17)
#   define R500_ALPHA_MOD_A_NAB                         (3 << 17)
#  define R500_ALPHA_SEL_B_SHIFT                        19
#   define R500_ALPHA_SEL_B_SRC0                        (0 << 19)
#   define R500_ALPHA_SEL_B_SRC1                        (1 << 19)
#   define R500_ALPHA_SEL_B_SRC2                        (2 << 19)
#   define R500_ALPHA_SEL_B_SRCP                        (3 << 19)
#   define R500_ALPHA_SWIZ_B_R                          (0 << 21)
#   define R500_ALPHA_SWIZ_B_G                          (1 << 21)
#   define R500_ALPHA_SWIZ_B_B                          (2 << 21)
#   define R500_ALPHA_SWIZ_B_A                          (3 << 21)
#   define R500_ALPHA_SWIZ_B_0                          (4 << 21)
#   define R500_ALPHA_SWIZ_B_HALF                       (5 << 21)
#   define R500_ALPHA_SWIZ_B_1                          (6 << 21)
/* #define R500_ALPHA_SWIZ_B_UNUSED                     (7 << 21) */
#   define R500_ALPHA_MOD_B_NOP                         (0 << 24)
#   define R500_ALPHA_MOD_B_NEG                         (1 << 24)
#   define R500_ALPHA_MOD_B_ABS                         (2 << 24)
#   define R500_ALPHA_MOD_B_NAB                         (3 << 24)
#   define R500_ALPHA_OMOD_IDENTITY                     (0 << 26)
#   define R500_ALPHA_OMOD_MUL_2                        (1 << 26)
#   define R500_ALPHA_OMOD_MUL_4                        (2 << 26)
#   define R500_ALPHA_OMOD_MUL_8                        (3 << 26)
#   define R500_ALPHA_OMOD_DIV_2                        (4 << 26)
#   define R500_ALPHA_OMOD_DIV_4                        (5 << 26)
#   define R500_ALPHA_OMOD_DIV_8                        (6 << 26)
#   define R500_ALPHA_OMOD_DISABLE                      (7 << 26)
#   define R500_ALPHA_TARGET(x)                         ((x) << 29)
#   define R500_ALPHA_W_OMASK                           (1 << 31)
#define R500_US_ALU_ALPHA_ADDR_0                        0x9800
#   define R500_ALPHA_ADDR0(x)                          ((x) << 0)
#   define R500_ALPHA_ADDR0_CONST                       (1 << 8)
#   define R500_ALPHA_ADDR0_REL                         (1 << 9)
#   define R500_ALPHA_ADDR1(x)                          ((x) << 10)
#   define R500_ALPHA_ADDR1_CONST                       (1 << 18)
#   define R500_ALPHA_ADDR1_REL                         (1 << 19)
#   define R500_ALPHA_ADDR2(x)                          ((x) << 20)
#   define R500_ALPHA_ADDR2_CONST                       (1 << 28)
#   define R500_ALPHA_ADDR2_REL                         (1 << 29)
#   define R500_ALPHA_SRCP_OP_1_MINUS_2A0               (0 << 30)
#   define R500_ALPHA_SRCP_OP_A1_MINUS_A0               (1 << 30)
#   define R500_ALPHA_SRCP_OP_A1_PLUS_A0                (2 << 30)
#   define R500_ALPHA_SRCP_OP_1_MINUS_A0                (3 << 30)
#define R500_US_ALU_RGBA_INST_0                         0xb000
#   define R500_ALU_RGBA_OP_MAD                         (0 << 0)
#   define R500_ALU_RGBA_OP_DP3                         (1 << 0)
#   define R500_ALU_RGBA_OP_DP4                         (2 << 0)
#   define R500_ALU_RGBA_OP_D2A                         (3 << 0)
#   define R500_ALU_RGBA_OP_MIN                         (4 << 0)
#   define R500_ALU_RGBA_OP_MAX                         (5 << 0)
/* #define R500_ALU_RGBA_OP_RESERVED                    (6 << 0) */
#   define R500_ALU_RGBA_OP_CND                         (7 << 0)
#   define R500_ALU_RGBA_OP_CMP                         (8 << 0)
#   define R500_ALU_RGBA_OP_FRC                         (9 << 0)
#   define R500_ALU_RGBA_OP_SOP                         (10 << 0)
#   define R500_ALU_RGBA_OP_MDH                         (11 << 0)
#   define R500_ALU_RGBA_OP_MDV                         (12 << 0)
#   define R500_ALU_RGBA_ADDRD(x)                       ((x) << 4)
#   define R500_ALU_RGBA_ADDRD_REL                      (1 << 11)
#  define R500_ALU_RGBA_SEL_C_SHIFT                     12
#   define R500_ALU_RGBA_SEL_C_SRC0                     (0 << 12)
#   define R500_ALU_RGBA_SEL_C_SRC1                     (1 << 12)
#   define R500_ALU_RGBA_SEL_C_SRC2                     (2 << 12)
#   define R500_ALU_RGBA_SEL_C_SRCP                     (3 << 12)
#   define R500_ALU_RGBA_R_SWIZ_R                       (0 << 14)
#   define R500_ALU_RGBA_R_SWIZ_G                       (1 << 14)
#   define R500_ALU_RGBA_R_SWIZ_B                       (2 << 14)
#   define R500_ALU_RGBA_R_SWIZ_A                       (3 << 14)
#   define R500_ALU_RGBA_R_SWIZ_0                       (4 << 14)
#   define R500_ALU_RGBA_R_SWIZ_HALF                    (5 << 14)
#   define R500_ALU_RGBA_R_SWIZ_1                       (6 << 14)
/* #define R500_ALU_RGBA_R_SWIZ_UNUSED                  (7 << 14) */
#   define R500_ALU_RGBA_G_SWIZ_R                       (0 << 17)
#   define R500_ALU_RGBA_G_SWIZ_G                       (1 << 17)
#   define R500_ALU_RGBA_G_SWIZ_B                       (2 << 17)
#   define R500_ALU_RGBA_G_SWIZ_A                       (3 << 17)
#   define R500_ALU_RGBA_G_SWIZ_0                       (4 << 17)
#   define R500_ALU_RGBA_G_SWIZ_HALF                    (5 << 17)
#   define R500_ALU_RGBA_G_SWIZ_1                       (6 << 17)
/* #define R500_ALU_RGBA_G_SWIZ_UNUSED                  (7 << 17) */
#   define R500_ALU_RGBA_B_SWIZ_R                       (0 << 20)
#   define R500_ALU_RGBA_B_SWIZ_G                       (1 << 20)
#   define R500_ALU_RGBA_B_SWIZ_B                       (2 << 20)
#   define R500_ALU_RGBA_B_SWIZ_A                       (3 << 20)
#   define R500_ALU_RGBA_B_SWIZ_0                       (4 << 20)
#   define R500_ALU_RGBA_B_SWIZ_HALF                    (5 << 20)
#   define R500_ALU_RGBA_B_SWIZ_1                       (6 << 20)
/* #define R500_ALU_RGBA_B_SWIZ_UNUSED                  (7 << 20) */
#   define R500_ALU_RGBA_MOD_C_NOP                      (0 << 23)
#   define R500_ALU_RGBA_MOD_C_NEG                      (1 << 23)
#   define R500_ALU_RGBA_MOD_C_ABS                      (2 << 23)
#   define R500_ALU_RGBA_MOD_C_NAB                      (3 << 23)
#  define R500_ALU_RGBA_ALPHA_SEL_C_SHIFT               25
#   define R500_ALU_RGBA_ALPHA_SEL_C_SRC0               (0 << 25)
#   define R500_ALU_RGBA_ALPHA_SEL_C_SRC1               (1 << 25)
#   define R500_ALU_RGBA_ALPHA_SEL_C_SRC2               (2 << 25)
#   define R500_ALU_RGBA_ALPHA_SEL_C_SRCP               (3 << 25)
#   define R500_ALU_RGBA_A_SWIZ_R                       (0 << 27)
#   define R500_ALU_RGBA_A_SWIZ_G                       (1 << 27)
#   define R500_ALU_RGBA_A_SWIZ_B                       (2 << 27)
#   define R500_ALU_RGBA_A_SWIZ_A                       (3 << 27)
#   define R500_ALU_RGBA_A_SWIZ_0                       (4 << 27)
#   define R500_ALU_RGBA_A_SWIZ_HALF                    (5 << 27)
#   define R500_ALU_RGBA_A_SWIZ_1                       (6 << 27)
/* #define R500_ALU_RGBA_A_SWIZ_UNUSED                  (7 << 27) */
#   define R500_ALU_RGBA_ALPHA_MOD_C_NOP                (0 << 30)
#   define R500_ALU_RGBA_ALPHA_MOD_C_NEG                (1 << 30)
#   define R500_ALU_RGBA_ALPHA_MOD_C_ABS                (2 << 30)
#   define R500_ALU_RGBA_ALPHA_MOD_C_NAB                (3 << 30)
#define R500_US_ALU_RGB_INST_0                          0xa000
#  define R500_ALU_RGB_SEL_A_SHIFT                      0
#   define R500_ALU_RGB_SEL_A_SRC0                      (0 << 0)
#   define R500_ALU_RGB_SEL_A_SRC1                      (1 << 0)
#   define R500_ALU_RGB_SEL_A_SRC2                      (2 << 0)
#   define R500_ALU_RGB_SEL_A_SRCP                      (3 << 0)
#   define R500_ALU_RGB_R_SWIZ_A_R                      (0 << 2)
#   define R500_ALU_RGB_R_SWIZ_A_G                      (1 << 2)
#   define R500_ALU_RGB_R_SWIZ_A_B                      (2 << 2)
#   define R500_ALU_RGB_R_SWIZ_A_A                      (3 << 2)
#   define R500_ALU_RGB_R_SWIZ_A_0                      (4 << 2)
#   define R500_ALU_RGB_R_SWIZ_A_HALF                   (5 << 2)
#   define R500_ALU_RGB_R_SWIZ_A_1                      (6 << 2)
/* #define R500_ALU_RGB_R_SWIZ_A_UNUSED                 (7 << 2) */
#   define R500_ALU_RGB_G_SWIZ_A_R                      (0 << 5)
#   define R500_ALU_RGB_G_SWIZ_A_G                      (1 << 5)
#   define R500_ALU_RGB_G_SWIZ_A_B                      (2 << 5)
#   define R500_ALU_RGB_G_SWIZ_A_A                      (3 << 5)
#   define R500_ALU_RGB_G_SWIZ_A_0                      (4 << 5)
#   define R500_ALU_RGB_G_SWIZ_A_HALF                   (5 << 5)
#   define R500_ALU_RGB_G_SWIZ_A_1                      (6 << 5)
/* #define R500_ALU_RGB_G_SWIZ_A_UNUSED                 (7 << 5) */
#   define R500_ALU_RGB_B_SWIZ_A_R                      (0 << 8)
#   define R500_ALU_RGB_B_SWIZ_A_G                      (1 << 8)
#   define R500_ALU_RGB_B_SWIZ_A_B                      (2 << 8)
#   define R500_ALU_RGB_B_SWIZ_A_A                      (3 << 8)
#   define R500_ALU_RGB_B_SWIZ_A_0                      (4 << 8)
#   define R500_ALU_RGB_B_SWIZ_A_HALF                   (5 << 8)
#   define R500_ALU_RGB_B_SWIZ_A_1                      (6 << 8)
/* #define R500_ALU_RGB_B_SWIZ_A_UNUSED                 (7 << 8) */
#   define R500_ALU_RGB_MOD_A_NOP                       (0 << 11)
#   define R500_ALU_RGB_MOD_A_NEG                       (1 << 11)
#   define R500_ALU_RGB_MOD_A_ABS                       (2 << 11)
#   define R500_ALU_RGB_MOD_A_NAB                       (3 << 11)
#  define R500_ALU_RGB_SEL_B_SHIFT                      13
#   define R500_ALU_RGB_SEL_B_SRC0                      (0 << 13)
#   define R500_ALU_RGB_SEL_B_SRC1                      (1 << 13)
#   define R500_ALU_RGB_SEL_B_SRC2                      (2 << 13)
#   define R500_ALU_RGB_SEL_B_SRCP                      (3 << 13)
#   define R500_ALU_RGB_R_SWIZ_B_R                      (0 << 15)
#   define R500_ALU_RGB_R_SWIZ_B_G                      (1 << 15)
#   define R500_ALU_RGB_R_SWIZ_B_B                      (2 << 15)
#   define R500_ALU_RGB_R_SWIZ_B_A                      (3 << 15)
#   define R500_ALU_RGB_R_SWIZ_B_0                      (4 << 15)
#   define R500_ALU_RGB_R_SWIZ_B_HALF                   (5 << 15)
#   define R500_ALU_RGB_R_SWIZ_B_1                      (6 << 15)
/* #define R500_ALU_RGB_R_SWIZ_B_UNUSED                 (7 << 15) */
#   define R500_ALU_RGB_G_SWIZ_B_R                      (0 << 18)
#   define R500_ALU_RGB_G_SWIZ_B_G                      (1 << 18)
#   define R500_ALU_RGB_G_SWIZ_B_B                      (2 << 18)
#   define R500_ALU_RGB_G_SWIZ_B_A                      (3 << 18)
#   define R500_ALU_RGB_G_SWIZ_B_0                      (4 << 18)
#   define R500_ALU_RGB_G_SWIZ_B_HALF                   (5 << 18)
#   define R500_ALU_RGB_G_SWIZ_B_1                      (6 << 18)
/* #define R500_ALU_RGB_G_SWIZ_B_UNUSED                 (7 << 18) */
#   define R500_ALU_RGB_B_SWIZ_B_R                      (0 << 21)
#   define R500_ALU_RGB_B_SWIZ_B_G                      (1 << 21)
#   define R500_ALU_RGB_B_SWIZ_B_B                      (2 << 21)
#   define R500_ALU_RGB_B_SWIZ_B_A                      (3 << 21)
#   define R500_ALU_RGB_B_SWIZ_B_0                      (4 << 21)
#   define R500_ALU_RGB_B_SWIZ_B_HALF                   (5 << 21)
#   define R500_ALU_RGB_B_SWIZ_B_1                      (6 << 21)
/* #define R500_ALU_RGB_B_SWIZ_B_UNUSED                 (7 << 21) */
#   define R500_ALU_RGB_MOD_B_NOP                       (0 << 24)
#   define R500_ALU_RGB_MOD_B_NEG                       (1 << 24)
#   define R500_ALU_RGB_MOD_B_ABS                       (2 << 24)
#   define R500_ALU_RGB_MOD_B_NAB                       (3 << 24)
#   define R500_ALU_RGB_OMOD_IDENTITY                   (0 << 26)
#   define R500_ALU_RGB_OMOD_MUL_2                      (1 << 26)
#   define R500_ALU_RGB_OMOD_MUL_4                      (2 << 26)
#   define R500_ALU_RGB_OMOD_MUL_8                      (3 << 26)
#   define R500_ALU_RGB_OMOD_DIV_2                      (4 << 26)
#   define R500_ALU_RGB_OMOD_DIV_4                      (5 << 26)
#   define R500_ALU_RGB_OMOD_DIV_8                      (6 << 26)
#   define R500_ALU_RGB_OMOD_DISABLE                    (7 << 26)
#   define R500_ALU_RGB_TARGET(x)                       ((x) << 29)
#   define R500_ALU_RGB_WMASK                           (1 << 31)
#define R500_US_ALU_RGB_ADDR_0                          0x9000
#   define R500_RGB_ADDR0(x)                            ((x) << 0)
#   define R500_RGB_ADDR0_CONST                         (1 << 8)
#   define R500_RGB_ADDR0_REL                           (1 << 9)
#   define R500_RGB_ADDR1(x)                            ((x) << 10)
#   define R500_RGB_ADDR1_CONST                         (1 << 18)
#   define R500_RGB_ADDR1_REL                           (1 << 19)
#   define R500_RGB_ADDR2(x)                            ((x) << 20)
#   define R500_RGB_ADDR2_CONST                         (1 << 28)
#   define R500_RGB_ADDR2_REL                           (1 << 29)
#   define R500_RGB_SRCP_OP_1_MINUS_2RGB0               (0 << 30)
#   define R500_RGB_SRCP_OP_RGB1_MINUS_RGB0             (1 << 30)
#   define R500_RGB_SRCP_OP_RGB1_PLUS_RGB0              (2 << 30)
#   define R500_RGB_SRCP_OP_1_MINUS_RGB0                (3 << 30)
#define R500_US_CMN_INST_0                              0xb800
#  define R500_INST_TYPE_MASK                           (3 << 0)
#   define R500_INST_TYPE_ALU                           (0 << 0)
#   define R500_INST_TYPE_OUT                           (1 << 0)
#   define R500_INST_TYPE_FC                            (2 << 0)
#   define R500_INST_TYPE_TEX                           (3 << 0)
#   define R500_INST_TEX_SEM_WAIT                       (1 << 2)
#   define R500_INST_RGB_PRED_SEL_NONE                  (0 << 3)
#   define R500_INST_RGB_PRED_SEL_RGBA                  (1 << 3)
#   define R500_INST_RGB_PRED_SEL_RRRR                  (2 << 3)
#   define R500_INST_RGB_PRED_SEL_GGGG                  (3 << 3)
#   define R500_INST_RGB_PRED_SEL_BBBB                  (4 << 3)
#   define R500_INST_RGB_PRED_SEL_AAAA                  (5 << 3)
#   define R500_INST_RGB_PRED_INV                       (1 << 6)
#   define R500_INST_WRITE_INACTIVE                     (1 << 7)
#   define R500_INST_LAST                               (1 << 8)
#   define R500_INST_NOP                                (1 << 9)
#   define R500_INST_ALU_WAIT                           (1 << 10)
#   define R500_INST_RGB_WMASK_R                        (1 << 11)
#   define R500_INST_RGB_WMASK_G                        (1 << 12)
#   define R500_INST_RGB_WMASK_B                        (1 << 13)
#   define R500_INST_RGB_WMASK_RGB                      (7 << 11)
#   define R500_INST_ALPHA_WMASK                        (1 << 14)
#   define R500_INST_RGB_OMASK_R                        (1 << 15)
#   define R500_INST_RGB_OMASK_G                        (1 << 16)
#   define R500_INST_RGB_OMASK_B                        (1 << 17)
#   define R500_INST_RGB_OMASK_RGB                      (7 << 15)
#   define R500_INST_ALPHA_OMASK                        (1 << 18)
#   define R500_INST_RGB_CLAMP                          (1 << 19)
#   define R500_INST_ALPHA_CLAMP                        (1 << 20)
#   define R500_INST_ALU_RESULT_SEL                     (1 << 21)
#   define R500_INST_ALPHA_PRED_INV                     (1 << 22)
#   define R500_INST_ALU_RESULT_OP_EQ                   (0 << 23)
#   define R500_INST_ALU_RESULT_OP_LT                   (1 << 23)
#   define R500_INST_ALU_RESULT_OP_GE                   (2 << 23)
#   define R500_INST_ALU_RESULT_OP_NE                   (3 << 23)
#   define R500_INST_ALPHA_PRED_SEL_NONE                (0 << 25)
#   define R500_INST_ALPHA_PRED_SEL_RGBA                (1 << 25)
#   define R500_INST_ALPHA_PRED_SEL_RRRR                (2 << 25)
#   define R500_INST_ALPHA_PRED_SEL_GGGG                (3 << 25)
#   define R500_INST_ALPHA_PRED_SEL_BBBB                (4 << 25)
#   define R500_INST_ALPHA_PRED_SEL_AAAA                (5 << 25)
/* XXX next four are kind of guessed */
#   define R500_INST_STAT_WE_R                          (1 << 28)
#   define R500_INST_STAT_WE_G                          (1 << 29)
#   define R500_INST_STAT_WE_B                          (1 << 30)
#   define R500_INST_STAT_WE_A                          (1 << 31)

/* note that these are 8 bit lengths, despite the offsets, at least for R500 */
#define R500_US_CODE_ADDR                               0x4630
#   define R500_US_CODE_START_ADDR(x)                   ((x) << 0)
#   define R500_US_CODE_END_ADDR(x)                     ((x) << 16)
#define R500_US_CODE_OFFSET                             0x4638
#   define R500_US_CODE_OFFSET_ADDR(x)                  ((x) << 0)
#define R500_US_CODE_RANGE                              0x4634
#   define R500_US_CODE_RANGE_ADDR(x)                   ((x) << 0)
#   define R500_US_CODE_RANGE_SIZE(x)                   ((x) << 16)
#define R500_US_CONFIG                                  0x4600
#   define R500_ZERO_TIMES_ANYTHING_EQUALS_ZERO         (1 << 1)
#define R500_US_FC_ADDR_0                               0xa000
#   define R500_FC_BOOL_ADDR(x)                         ((x) << 0)
#   define R500_FC_INT_ADDR(x)                          ((x) << 8)
#   define R500_FC_JUMP_ADDR(x)                         ((x) << 16)
#   define R500_FC_JUMP_GLOBAL                          (1 << 31)
#define R500_US_FC_BOOL_CONST                           0x4620
#   define R500_FC_KBOOL(x)                             (x)
#define R500_US_FC_CTRL                                 0x4624
#   define R500_FC_TEST_EN                              (1 << 30)
#   define R500_FC_FULL_FC_EN                           (1 << 31)
#define R500_US_FC_INST_0                               0x9800
#   define R500_FC_OP_JUMP                              (0 << 0)
#   define R500_FC_OP_LOOP                              (1 << 0)
#   define R500_FC_OP_ENDLOOP                           (2 << 0)
#   define R500_FC_OP_REP                               (3 << 0)
#   define R500_FC_OP_ENDREP                            (4 << 0)
#   define R500_FC_OP_BREAKLOOP                         (5 << 0)
#   define R500_FC_OP_BREAKREP                          (6 << 0)
#   define R500_FC_OP_CONTINUE                          (7 << 0)
#   define R500_FC_B_ELSE                               (1 << 4)
#   define R500_FC_JUMP_ANY                             (1 << 5)
#   define R500_FC_A_OP_NONE                            (0 << 6)
#   define R500_FC_A_OP_POP                             (1 << 6)
#   define R500_FC_A_OP_PUSH                            (2 << 6)
#   define R500_FC_JUMP_FUNC(x)                         ((x) << 8)
#   define R500_FC_B_POP_CNT(x)                         ((x) << 16)
#   define R500_FC_B_OP0_NONE                           (0 << 24)
#   define R500_FC_B_OP0_DECR                           (1 << 24)
#   define R500_FC_B_OP0_INCR                           (2 << 24)
#   define R500_FC_B_OP1_DECR                           (0 << 26)
#   define R500_FC_B_OP1_NONE                           (1 << 26)
#   define R500_FC_B_OP1_INCR                           (2 << 26)
#   define R500_FC_IGNORE_UNCOVERED                     (1 << 28)
#define R500_US_FC_INT_CONST_0                          0x4c00
#   define R500_FC_INT_CONST_KR(x)                      ((x) << 0)
#   define R500_FC_INT_CONST_KG(x)                      ((x) << 8)
#   define R500_FC_INT_CONST_KB(x)                      ((x) << 16)
/* _0 through _15 */
#define R500_US_FORMAT0_0                               0x4640
#   define R500_FORMAT_TXWIDTH(x)                       ((x) << 0)
#   define R500_FORMAT_TXHEIGHT(x)                      ((x) << 11)
#   define R500_FORMAT_TXDEPTH(x)                       ((x) << 22)
#define R500_US_PIXSIZE                                 0x4604
#   define R500_PIX_SIZE(x)                             (x)
#define R500_US_TEX_ADDR_0                              0x9800
#   define R500_TEX_SRC_ADDR(x)                         ((x) << 0)
#   define R500_TEX_SRC_ADDR_REL                        (1 << 7)
#   define R500_TEX_SRC_S_SWIZ_R                        (0 << 8)
#   define R500_TEX_SRC_S_SWIZ_G                        (1 << 8)
#   define R500_TEX_SRC_S_SWIZ_B                        (2 << 8)
#   define R500_TEX_SRC_S_SWIZ_A                        (3 << 8)
#   define R500_TEX_SRC_T_SWIZ_R                        (0 << 10)
#   define R500_TEX_SRC_T_SWIZ_G                        (1 << 10)
#   define R500_TEX_SRC_T_SWIZ_B                        (2 << 10)
#   define R500_TEX_SRC_T_SWIZ_A                        (3 << 10)
#   define R500_TEX_SRC_R_SWIZ_R                        (0 << 12)
#   define R500_TEX_SRC_R_SWIZ_G                        (1 << 12)
#   define R500_TEX_SRC_R_SWIZ_B                        (2 << 12)
#   define R500_TEX_SRC_R_SWIZ_A                        (3 << 12)
#   define R500_TEX_SRC_Q_SWIZ_R                        (0 << 14)
#   define R500_TEX_SRC_Q_SWIZ_G                        (1 << 14)
#   define R500_TEX_SRC_Q_SWIZ_B                        (2 << 14)
#   define R500_TEX_SRC_Q_SWIZ_A                        (3 << 14)
#   define R500_TEX_DST_ADDR(x)                         ((x) << 16)
#   define R500_TEX_DST_ADDR_REL                        (1 << 23)
#   define R500_TEX_DST_R_SWIZ_R                        (0 << 24)
#   define R500_TEX_DST_R_SWIZ_G                        (1 << 24)
#   define R500_TEX_DST_R_SWIZ_B                        (2 << 24)
#   define R500_TEX_DST_R_SWIZ_A                        (3 << 24)
#   define R500_TEX_DST_G_SWIZ_R                        (0 << 26)
#   define R500_TEX_DST_G_SWIZ_G                        (1 << 26)
#   define R500_TEX_DST_G_SWIZ_B                        (2 << 26)
#   define R500_TEX_DST_G_SWIZ_A                        (3 << 26)
#   define R500_TEX_DST_B_SWIZ_R                        (0 << 28)
#   define R500_TEX_DST_B_SWIZ_G                        (1 << 28)
#   define R500_TEX_DST_B_SWIZ_B                        (2 << 28)
#   define R500_TEX_DST_B_SWIZ_A                        (3 << 28)
#   define R500_TEX_DST_A_SWIZ_R                        (0 << 30)
#   define R500_TEX_DST_A_SWIZ_G                        (1 << 30)
#   define R500_TEX_DST_A_SWIZ_B                        (2 << 30)
#   define R500_TEX_DST_A_SWIZ_A                        (3 << 30)
#define R500_US_TEX_ADDR_DXDY_0                         0xa000
#   define R500_DX_ADDR(x)                              ((x) << 0)
#   define R500_DX_ADDR_REL                             (1 << 7)
#   define R500_DX_S_SWIZ_R                             (0 << 8)
#   define R500_DX_S_SWIZ_G                             (1 << 8)
#   define R500_DX_S_SWIZ_B                             (2 << 8)
#   define R500_DX_S_SWIZ_A                             (3 << 8)
#   define R500_DX_T_SWIZ_R                             (0 << 10)
#   define R500_DX_T_SWIZ_G                             (1 << 10)
#   define R500_DX_T_SWIZ_B                             (2 << 10)
#   define R500_DX_T_SWIZ_A                             (3 << 10)
#   define R500_DX_R_SWIZ_R                             (0 << 12)
#   define R500_DX_R_SWIZ_G                             (1 << 12)
#   define R500_DX_R_SWIZ_B                             (2 << 12)
#   define R500_DX_R_SWIZ_A                             (3 << 12)
#   define R500_DX_Q_SWIZ_R                             (0 << 14)
#   define R500_DX_Q_SWIZ_G                             (1 << 14)
#   define R500_DX_Q_SWIZ_B                             (2 << 14)
#   define R500_DX_Q_SWIZ_A                             (3 << 14)
#   define R500_DY_ADDR(x)                              ((x) << 16)
#   define R500_DY_ADDR_REL                             (1 << 17)
#   define R500_DY_S_SWIZ_R                             (0 << 24)
#   define R500_DY_S_SWIZ_G                             (1 << 24)
#   define R500_DY_S_SWIZ_B                             (2 << 24)
#   define R500_DY_S_SWIZ_A                             (3 << 24)
#   define R500_DY_T_SWIZ_R                             (0 << 26)
#   define R500_DY_T_SWIZ_G                             (1 << 26)
#   define R500_DY_T_SWIZ_B                             (2 << 26)
#   define R500_DY_T_SWIZ_A                             (3 << 26)
#   define R500_DY_R_SWIZ_R                             (0 << 28)
#   define R500_DY_R_SWIZ_G                             (1 << 28)
#   define R500_DY_R_SWIZ_B                             (2 << 28)
#   define R500_DY_R_SWIZ_A                             (3 << 28)
#   define R500_DY_Q_SWIZ_R                             (0 << 30)
#   define R500_DY_Q_SWIZ_G                             (1 << 30)
#   define R500_DY_Q_SWIZ_B                             (2 << 30)
#   define R500_DY_Q_SWIZ_A                             (3 << 30)
#define R500_US_TEX_INST_0                              0x9000
#   define R500_TEX_ID(x)                               ((x) << 16)
#   define R500_TEX_INST_NOP                            (0 << 22)
#   define R500_TEX_INST_LD                             (1 << 22)
#   define R500_TEX_INST_TEXKILL                        (2 << 22)
#   define R500_TEX_INST_PROJ                           (3 << 22)
#   define R500_TEX_INST_LODBIAS                        (4 << 22)
#   define R500_TEX_INST_LOD                            (5 << 22)
#   define R500_TEX_INST_DXDY                           (6 << 22)
#   define R500_TEX_SEM_ACQUIRE                         (1 << 25)
#   define R500_TEX_IGNORE_UNCOVERED                    (1 << 26)
#   define R500_TEX_UNSCALED                            (1 << 27)
#define R300_US_W_FMT                                   0x46b4
#   define R300_W_FMT_W0                                (0 << 0)
#   define R300_W_FMT_W24                               (1 << 0)
#   define R300_W_FMT_W24FP                             (2 << 0)
#   define R300_W_SRC_US                                (0 << 2)
#   define R300_W_SRC_RAS                               (1 << 2)


/* Draw a primitive from vertex data in arrays loaded via 3D_LOAD_VBPNTR.
 * Two parameter dwords:
 * 0. VAP_VTX_FMT: The first parameter is not written to hardware
 * 1. VAP_VF_CTL: The second parameter is a standard primitive emission dword.
 */
#define R300_PACKET3_3D_DRAW_VBUF           0x00002800

/* Draw a primitive from immediate vertices in this packet
 * Up to 16382 dwords:
 * 0. VAP_VTX_FMT: The first parameter is not written to hardware
 * 1. VAP_VF_CTL: The second parameter is a standard primitive emission dword.
 * 2 to end: Up to 16380 dwords of vertex data.
 */
#define R300_PACKET3_3D_DRAW_IMMD           0x00002900

/* Draw a primitive from vertex data in arrays loaded via 3D_LOAD_VBPNTR and
 * immediate vertices in this packet
 * Up to 16382 dwords:
 * 0. VAP_VTX_FMT: The first parameter is not written to hardware
 * 1. VAP_VF_CTL: The second parameter is a standard primitive emission dword.
 * 2 to end: Up to 16380 dwords of vertex data.
 */
#define R300_PACKET3_3D_DRAW_INDX           0x00002A00


/* Specify the full set of vertex arrays as (address, stride).
 * The first parameter is the number of vertex arrays specified.
 * The rest of the command is a variable length list of blocks, where
 * each block is three dwords long and specifies two arrays.
 * The first dword of a block is split into two words, the lower significant
 * word refers to the first array, the more significant word to the second
 * array in the block.
 * The low byte of each word contains the size of an array entry in dwords,
 * the high byte contains the stride of the array.
 * The second dword of a block contains the pointer to the first array,
 * the third dword of a block contains the pointer to the second array.
 * Note that if the total number of arrays is odd, the third dword of
 * the last block is omitted.
 */
#define R300_PACKET3_3D_LOAD_VBPNTR         0x00002F00

#   define R300_VBPNTR_SIZE0(x)    ((x) >> 2)
#   define R300_VBPNTR_STRIDE0(x)  (((x) >> 2) << 8)
#   define R300_VBPNTR_SIZE1(x)    (((x) >> 2) << 16)
#   define R300_VBPNTR_STRIDE1(x)  (((x) >> 2) << 24)

#define R300_PACKET3_INDX_BUFFER            0x00003300
#    define R300_INDX_BUFFER_DST_SHIFT          0
#    define R300_INDX_BUFFER_SKIP_SHIFT         16
#    define R300_INDX_BUFFER_ONE_REG_WR         (1<<31)

/* Same as R300_PACKET3_3D_DRAW_VBUF but without VAP_VTX_FMT */
#define R300_PACKET3_3D_DRAW_VBUF_2         0x00003400
/* Same as R300_PACKET3_3D_DRAW_IMMD but without VAP_VTX_FMT */
#define R300_PACKET3_3D_DRAW_IMMD_2         0x00003500
/* Same as R300_PACKET3_3D_DRAW_INDX but without VAP_VTX_FMT */
#define R300_PACKET3_3D_DRAW_INDX_2         0x00003600

/* Clears a portion of hierachical Z RAM
 * 3 dword parameters
 * 0. START
 * 1. COUNT: 13:0 (max is 0x3FFF)
 * 2. CLEAR_VALUE: Value to write into HIZ RAM.
 */
#define R300_PACKET3_3D_CLEAR_HIZ           0x00003700

/* Draws a set of primitives using vertex buffers pointed by the state data.
 * At least 2 Parameters:
 * 0. VAP_VF_CNTL: The first parameter is a standard primitive emission dword.
 * 2 to end: Data or indices (see other 3D_DRAW_* packets for details)
 */
#define R300_PACKET3_3D_DRAW_128            0x00003900

/* END: Packet 3 commands */


/* Color formats for 2d packets
 */
#define R300_CP_COLOR_FORMAT_CI8        2
#define R300_CP_COLOR_FORMAT_ARGB1555   3
#define R300_CP_COLOR_FORMAT_RGB565     4
#define R300_CP_COLOR_FORMAT_ARGB8888   6
#define R300_CP_COLOR_FORMAT_RGB332     7
#define R300_CP_COLOR_FORMAT_RGB8       9
#define R300_CP_COLOR_FORMAT_ARGB4444   15

/*
 * CP type-3 packets
 */
#define R300_CP_CMD_BITBLT_MULTI        0xC0009B00

/* XXX Corbin's stuff from radeon and r200 */

#define RADEON_WAIT_UNTIL                   0x1720
#       define RADEON_WAIT_CRTC_PFLIP       (1 << 0)
#       define RADEON_WAIT_2D_IDLECLEAN     (1 << 16)
#       define RADEON_WAIT_3D_IDLECLEAN     (1 << 17)
#       define RADEON_WAIT_HOST_IDLECLEAN   (1 << 18)

#define RADEON_CP_PACKET3                           0xC0000000

#define R200_3D_DRAW_IMMD_2      0xC0003500

#endif /* _R300_REG_H */

/* *INDENT-ON* */

/* vim: set foldenable foldmarker=\\{,\\} foldmethod=marker : */