src/gallium/drivers/cell/common.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 /**
  29  * Types and tokens which are common to the SPU and PPU code.
  30  */
  31
  32
  33 #ifndef CELL_COMMON_H
  34 #define CELL_COMMON_H
  35
  36 #include "pipe/p_compiler.h"
  37 #include "pipe/p_format.h"
  38 #include "pipe/p_state.h"
  39
  40
  41 /** The standard assert macro doesn't seem to work reliably */
  42 #define ASSERT(x) \
  43    if (!(x)) { \
  44       ubyte *p = NULL; \
  45       fprintf(stderr, "%s:%d: %s(): assertion %s failed.\n", \
  46               __FILE__, __LINE__, __FUNCTION__, #x);             \
  47       *p = 0; \
  48       exit(1); \
  49    }
  50
  51
  52 /** for sanity checking */
  53 #define ASSERT_ALIGN16(ptr) \
  54   ASSERT((((unsigned long) (ptr)) & 0xf) == 0);
  55
  56
  57 /** round up value to next multiple of 4 */
  58 #define ROUNDUP4(k)  (((k) + 0x3) & ~0x3)
  59
  60 /** round up value to next multiple of 8 */
  61 #define ROUNDUP8(k)  (((k) + 0x7) & ~0x7)
  62
  63 /** round up value to next multiple of 16 */
  64 #define ROUNDUP16(k)  (((k) + 0xf) & ~0xf)
  65
  66
  67 #define CELL_MAX_SPUS 8
  68
  69 #define CELL_MAX_SAMPLERS 4
  70 #define CELL_MAX_TEXTURE_LEVELS 12  /* 2k x 2k */
  71 #define CELL_MAX_CONSTANTS 32  /**< number of float[4] constants */
  72 #define CELL_MAX_WIDTH 1024    /**< max framebuffer width */
  73 #define CELL_MAX_HEIGHT 1024   /**< max framebuffer width */
  74
  75 #define TILE_SIZE 32
  76
  77
  78 /**
  79  * The low byte of a mailbox word contains the command opcode.
  80  * Remaining higher bytes are command specific.
  81  */
  82 #define CELL_CMD_OPCODE_MASK 0xff
  83
  84 #define CELL_CMD_EXIT                 1
  85 #define CELL_CMD_CLEAR_SURFACE        2
  86 #define CELL_CMD_FINISH               3
  87 #define CELL_CMD_RENDER               4
  88 #define CELL_CMD_BATCH                5
  89 #define CELL_CMD_RELEASE_VERTS        6
  90 #define CELL_CMD_STATE_FRAMEBUFFER   10
  91 #define CELL_CMD_STATE_FRAGMENT_OPS  11
  92 #define CELL_CMD_STATE_SAMPLER       12
  93 #define CELL_CMD_STATE_TEXTURE       13
  94 #define CELL_CMD_STATE_VERTEX_INFO   14
  95 #define CELL_CMD_STATE_VIEWPORT      15
  96 #define CELL_CMD_STATE_UNIFORMS      16
  97 #define CELL_CMD_STATE_VS_ARRAY_INFO 17
  98 #define CELL_CMD_STATE_BIND_VS       18
  99 #define CELL_CMD_STATE_FRAGMENT_PROGRAM 19
 100 #define CELL_CMD_STATE_ATTRIB_FETCH  20
 101 #define CELL_CMD_STATE_FS_CONSTANTS  21
 102 #define CELL_CMD_STATE_RASTERIZER    22
 103 #define CELL_CMD_VS_EXECUTE          23
 104 #define CELL_CMD_FLUSH_BUFFER_RANGE  24
 105 #define CELL_CMD_FENCE               25
 106
 107
 108 /** Command/batch buffers */
 109 #define CELL_NUM_BUFFERS 4
 110 #define CELL_BUFFER_SIZE (4*1024)  /**< 16KB would be the max */
 111
 112 #define CELL_BUFFER_STATUS_FREE 10
 113 #define CELL_BUFFER_STATUS_USED 20
 114
 115 /** Debug flags */
 116 #define CELL_DEBUG_CHECKER              (1 << 0)
 117 #define CELL_DEBUG_ASM                  (1 << 1)
 118 #define CELL_DEBUG_SYNC                 (1 << 2)
 119 #define CELL_DEBUG_FRAGMENT_OPS         (1 << 3)
 120 #define CELL_DEBUG_FRAGMENT_OP_FALLBACK (1 << 4)
 121 #define CELL_DEBUG_CMD                  (1 << 5)
 122 #define CELL_DEBUG_CACHE                (1 << 6)
 123
 124 /** Max instructions for doing per-fragment operations */
 125 #define SPU_MAX_FRAGMENT_OPS_INSTS 128
 126
 127
 128
 129 #define CELL_FENCE_IDLE      0
 130 #define CELL_FENCE_EMITTED   1
 131 #define CELL_FENCE_SIGNALLED 2
 132
 133 #define CELL_FACING_FRONT    0
 134 #define CELL_FACING_BACK     1
 135
 136 struct cell_fence
 137 {
 138    /** There's a 16-byte status qword per SPU */
 139    volatile uint status[CELL_MAX_SPUS][4];
 140 };
 141
 142
 143 /**
 144  * Fence command sent to SPUs.  In response, the SPUs will write
 145  * CELL_FENCE_STATUS_SIGNALLED back to the fence status word in main memory.
 146  */
 147 struct cell_command_fence
 148 {
 149    uint64_t opcode;      /**< CELL_CMD_FENCE */
 150    struct cell_fence *fence;
 151 };
 152
 153
 154 /**
 155  * Command to specify per-fragment operations state and generated code.
 156  * Note that the dsa, blend, blend_color fields are really only needed
 157  * for the fallback/C per-pixel code.  They're not used when we generate
 158  * dynamic SPU fragment code (which is the normal case).
 159  */
 160 struct cell_command_fragment_ops
 161 {
 162    uint64_t opcode;      /**< CELL_CMD_STATE_FRAGMENT_OPS */
 163    struct pipe_depth_stencil_alpha_state dsa;
 164    struct pipe_blend_state blend;
 165    struct pipe_blend_color blend_color;
 166    unsigned code_front[SPU_MAX_FRAGMENT_OPS_INSTS];
 167    unsigned code_back[SPU_MAX_FRAGMENT_OPS_INSTS];
 168 };
 169
 170
 171 /** Max instructions for fragment programs */
 172 #define SPU_MAX_FRAGMENT_PROGRAM_INSTS 512
 173
 174 /**
 175  * Command to send a fragment program to SPUs.
 176  */
 177 struct cell_command_fragment_program
 178 {
 179    uint64_t opcode;      /**< CELL_CMD_STATE_FRAGMENT_PROGRAM */
 180    uint num_inst;        /**< Number of instructions */
 181    unsigned code[SPU_MAX_FRAGMENT_PROGRAM_INSTS];
 182 };
 183
 184
 185 /**
 186  * Tell SPUs about the framebuffer size, location
 187  */
 188 struct cell_command_framebuffer
 189 {
 190    uint64_t opcode;     /**< CELL_CMD_STATE_FRAMEBUFFER */
 191    int width, height;
 192    void *color_start, *depth_start;
 193    enum pipe_format color_format, depth_format;
 194 };
 195
 196
 197 /**
 198  * Tell SPUs about rasterizer state.
 199  */
 200 struct cell_command_rasterizer
 201 {
 202    uint64_t opcode;    /**< CELL_CMD_STATE_RASTERIZER */
 203    struct pipe_rasterizer_state rasterizer;
 204 };
 205
 206
 207 /**
 208  * Clear framebuffer to the given value/color.
 209  */
 210 struct cell_command_clear_surface
 211 {
 212    uint64_t opcode;     /**< CELL_CMD_CLEAR_SURFACE */
 213    uint surface; /**< Temporary: 0=color, 1=Z */
 214    uint value;
 215 };
 216
 217
 218 /**
 219  * Array info used by the vertex shader's vertex puller.
 220  */
 221 struct cell_array_info
 222 {
 223    uint64_t base;      /**< Base address of the 0th element. */
 224    uint attr;          /**< Attribute that this state is for. */
 225    uint pitch;         /**< Byte pitch from one entry to the next. */
 226    uint size;
 227    uint function_offset;
 228 };
 229
 230
 231 struct cell_attribute_fetch_code
 232 {
 233    uint64_t base;
 234    uint size;
 235 };
 236
 237
 238 struct cell_buffer_range
 239 {
 240    uint64_t base;
 241    unsigned size;
 242 };
 243
 244
 245 struct cell_shader_info
 246 {
 247    uint64_t declarations;
 248    uint64_t instructions;
 249    uint64_t  immediates;
 250
 251    unsigned num_outputs;
 252    unsigned num_declarations;
 253    unsigned num_instructions;
 254    unsigned num_immediates;
 255 };
 256
 257
 258 #define SPU_VERTS_PER_BATCH 64
 259 struct cell_command_vs
 260 {
 261    uint64_t opcode;       /**< CELL_CMD_VS_EXECUTE */
 262    uint64_t vOut[SPU_VERTS_PER_BATCH];
 263    unsigned num_elts;
 264    unsigned elts[SPU_VERTS_PER_BATCH];
 265    float plane[12][4];
 266    unsigned nr_planes;
 267    unsigned nr_attrs;
 268 };
 269
 270
 271 struct cell_command_render
 272 {
 273    uint64_t opcode;   /**< CELL_CMD_RENDER */
 274    uint prim_type;    /**< PIPE_PRIM_x */
 275    uint num_verts;
 276    uint vertex_size;  /**< bytes per vertex */
 277    uint num_indexes;
 278    uint vertex_buf;  /**< which cell->buffer[] contains the vertex data */
 279    float xmin, ymin, xmax, ymax;  /* XXX another dummy field */
 280    uint min_index;
 281    boolean inline_verts;
 282 };
 283
 284
 285 struct cell_command_release_verts
 286 {
 287    uint64_t opcode;         /**< CELL_CMD_RELEASE_VERTS */
 288    uint vertex_buf;    /**< in [0, CELL_NUM_BUFFERS-1] */
 289 };
 290
 291
 292 struct cell_command_sampler
 293 {
 294    uint64_t opcode;         /**< CELL_CMD_STATE_SAMPLER */
 295    uint unit;
 296    struct pipe_sampler_state state;
 297 };
 298
 299
 300 struct cell_command_texture
 301 {
 302    uint64_t opcode;     /**< CELL_CMD_STATE_TEXTURE */
 303    uint target;         /**< PIPE_TEXTURE_x */
 304    uint unit;
 305    void *start[CELL_MAX_TEXTURE_LEVELS];   /**< Address in main memory */
 306    ushort width[CELL_MAX_TEXTURE_LEVELS];
 307    ushort height[CELL_MAX_TEXTURE_LEVELS];
 308    ushort depth[CELL_MAX_TEXTURE_LEVELS];
 309 };
 310
 311
 312 #define MAX_SPU_FUNCTIONS 12
 313 /**
 314  * Used to tell the PPU about the address of particular functions in the
 315  * SPU's address space.
 316  */
 317 struct cell_spu_function_info
 318 {
 319    uint num;
 320    char names[MAX_SPU_FUNCTIONS][16];
 321    uint addrs[MAX_SPU_FUNCTIONS];
 322    char pad[12];   /**< Pad struct to multiple of 16 bytes (256 currently) */
 323 };
 324
 325
 326 /** This is the object passed to spe_create_thread() */
 327 struct cell_init_info
 328 {
 329    unsigned id;
 330    unsigned num_spus;
 331    unsigned debug_flags;  /**< mask of CELL_DEBUG_x flags */
 332    float inv_timebase;    /**< 1.0/timebase, for perf measurement */
 333
 334    /** Buffers for command batches, vertex/index data */
 335    ubyte *buffers[CELL_NUM_BUFFERS];
 336    uint *buffer_status;  /**< points at cell_context->buffer_status */
 337
 338    struct cell_spu_function_info *spu_functions;
 339 } ALIGN16_ATTRIB;
 340
 341
 342 #endif /* CELL_COMMON_H */