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_util.h"
  38 #include "pipe/p_format.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 6
  68
  69 #define TILE_SIZE 32
  70
  71
  72 /**
  73  * The low byte of a mailbox word contains the command opcode.
  74  * Remaining higher bytes are command specific.
  75  */
  76 #define CELL_CMD_OPCODE_MASK 0xff
  77
  78 #define CELL_CMD_EXIT                 1
  79 #define CELL_CMD_CLEAR_SURFACE        2
  80 #define CELL_CMD_FINISH               3
  81 #define CELL_CMD_RENDER               4
  82 #define CELL_CMD_BATCH                5
  83 #define CELL_CMD_RELEASE_VERTS        6
  84 #define CELL_CMD_STATE_FRAMEBUFFER   10
  85 #define CELL_CMD_STATE_DEPTH_STENCIL 11
  86 #define CELL_CMD_STATE_SAMPLER       12
  87 #define CELL_CMD_STATE_TEXTURE       13
  88 #define CELL_CMD_STATE_VERTEX_INFO   14
  89 #define CELL_CMD_STATE_VIEWPORT      15
  90 #define CELL_CMD_STATE_UNIFORMS      16
  91 #define CELL_CMD_STATE_VS_ARRAY_INFO 17
  92 #define CELL_CMD_STATE_BIND_VS       18
  93 #define CELL_CMD_STATE_BLEND         19
  94 #define CELL_CMD_STATE_ATTRIB_FETCH  20
  95 #define CELL_CMD_VS_EXECUTE          21
  96 #define CELL_CMD_FLUSH_BUFFER_RANGE  22
  97
  98
  99 #define CELL_NUM_BUFFERS 4
 100 #define CELL_BUFFER_SIZE (4*1024)  /**< 16KB would be the max */
 101
 102 #define CELL_BUFFER_STATUS_FREE 10
 103 #define CELL_BUFFER_STATUS_USED 20
 104
 105
 106
 107 /**
 108  * Tell SPUs about the framebuffer size, location
 109  */
 110 struct cell_command_framebuffer
 111 {
 112    uint64_t opcode;     /**< CELL_CMD_FRAMEBUFFER */
 113    int width, height;
 114    void *color_start, *depth_start;
 115    enum pipe_format color_format, depth_format;
 116 };
 117
 118
 119 /**
 120  * Clear framebuffer to the given value/color.
 121  */
 122 struct cell_command_clear_surface
 123 {
 124    uint64_t opcode;     /**< CELL_CMD_CLEAR_SURFACE */
 125    uint surface; /**< Temporary: 0=color, 1=Z */
 126    uint value;
 127 };
 128
 129
 130 /**
 131  * Array info used by the vertex shader's vertex puller.
 132  */
 133 struct cell_array_info
 134 {
 135    uint64_t base;      /**< Base address of the 0th element. */
 136    uint attr;          /**< Attribute that this state is for. */
 137    uint pitch;         /**< Byte pitch from one entry to the next. */
 138    uint size;
 139    uint function_offset;
 140 };
 141
 142
 143 struct cell_attribute_fetch_code {
 144    uint64_t base;
 145    uint size;
 146 };
 147
 148
 149 struct cell_buffer_range {
 150    uint64_t base;
 151    unsigned size;
 152 };
 153
 154
 155 struct cell_shader_info
 156 {
 157    uint64_t declarations;
 158    uint64_t instructions;
 159    uint64_t  immediates;
 160
 161    unsigned num_outputs;
 162    unsigned num_declarations;
 163    unsigned num_instructions;
 164    unsigned num_immediates;
 165 };
 166
 167
 168 #define SPU_VERTS_PER_BATCH 64
 169 struct cell_command_vs
 170 {
 171    uint64_t opcode;       /**< CELL_CMD_VS_EXECUTE */
 172    uint64_t vOut[SPU_VERTS_PER_BATCH];
 173    unsigned num_elts;
 174    unsigned elts[SPU_VERTS_PER_BATCH];
 175    float plane[12][4];
 176    unsigned nr_planes;
 177    unsigned nr_attrs;
 178 };
 179
 180
 181 struct cell_command_render
 182 {
 183    uint64_t opcode;   /**< CELL_CMD_RENDER */
 184    uint prim_type;    /**< PIPE_PRIM_x */
 185    uint num_verts;
 186    uint vertex_size;  /**< bytes per vertex */
 187    uint num_indexes;
 188    uint vertex_buf;  /**< which cell->buffer[] contains the vertex data */
 189    float xmin, ymin, xmax, ymax;  /* XXX another dummy field */
 190    uint min_index;
 191    boolean inline_verts;
 192 };
 193
 194
 195 struct cell_command_release_verts
 196 {
 197    uint64_t opcode;         /**< CELL_CMD_RELEASE_VERTS */
 198    uint vertex_buf;    /**< in [0, CELL_NUM_BUFFERS-1] */
 199 };
 200
 201
 202 struct cell_command_texture
 203 {
 204    void *start;         /**< Address in main memory */
 205    uint width, height;
 206 };
 207
 208
 209 /** XXX unions don't seem to work */
 210 /* XXX this should go away; all commands should be placed in batch buffers */
 211 struct cell_command
 212 {
 213 #if 0
 214    struct cell_command_framebuffer fb;
 215    struct cell_command_clear_surface clear;
 216    struct cell_command_render render;
 217 #endif
 218    struct cell_command_vs vs;
 219 } ALIGN16_ATTRIB;
 220
 221
 222 /** This is the object passed to spe_create_thread() */
 223 struct cell_init_info
 224 {
 225    unsigned id;
 226    unsigned num_spus;
 227    struct cell_command *cmd;
 228
 229    /** Buffers for command batches, vertex/index data */
 230    ubyte *buffers[CELL_NUM_BUFFERS];
 231    uint *buffer_status;  /**< points at cell_context->buffer_status */
 232 } ALIGN16_ATTRIB;
 233
 234
 235 #endif /* CELL_COMMON_H */