src/gallium/drivers/cell/ppu/cell_context.c

   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  * Authors
  30  *  Brian Paul
  31  */
  32
  33
  34 #include <stdio.h>
  35
  36 #include "pipe/p_defines.h"
  37 #include "pipe/p_format.h"
  38 #include "util/u_memory.h"
  39 #include "util/u_simple_screen.h"
  40 #include "pipe/p_screen.h"
  41
  42 #include "draw/draw_context.h"
  43 #include "draw/draw_private.h"
  44
  45 #include "cell/common.h"
  46 #include "cell_batch.h"
  47 #include "cell_clear.h"
  48 #include "cell_context.h"
  49 #include "cell_draw_arrays.h"
  50 #include "cell_fence.h"
  51 #include "cell_flush.h"
  52 #include "cell_state.h"
  53 #include "cell_surface.h"
  54 #include "cell_spu.h"
  55 #include "cell_pipe_state.h"
  56 #include "cell_texture.h"
  57 #include "cell_vbuf.h"
  58
  59
  60
  61 static void
  62 cell_destroy_context( struct pipe_context *pipe )
  63 {
  64    struct cell_context *cell = cell_context(pipe);
  65
  66    util_delete_keymap(cell->fragment_ops_cache, NULL);
  67
  68    cell_spu_exit(cell);
  69
  70    align_free(cell);
  71 }
  72
  73
  74 static struct draw_context *
  75 cell_draw_create(struct cell_context *cell)
  76 {
  77    struct draw_context *draw = draw_create();
  78
  79 #if 0 /* broken */
  80    if (getenv("GALLIUM_CELL_VS")) {
  81       /* plug in SPU-based vertex transformation code */
  82       draw->shader_queue_flush = cell_vertex_shader_queue_flush;
  83       draw->driver_private = cell;
  84    }
  85 #endif
  86
  87    return draw;
  88 }
  89
  90
  91 static const struct debug_named_value cell_debug_flags[] = {
  92    {"checker", CELL_DEBUG_CHECKER},/**< modulate tile clear color by SPU ID */
  93    {"asm", CELL_DEBUG_ASM},        /**< dump SPU asm code */
  94    {"sync", CELL_DEBUG_SYNC},      /**< SPUs do synchronous DMA */
  95    {"fragops", CELL_DEBUG_FRAGMENT_OPS}, /**< SPUs emit fragment ops debug messages*/
  96    {"fragopfallback", CELL_DEBUG_FRAGMENT_OP_FALLBACK}, /**< SPUs use reference implementation for fragment ops*/
  97    {"cmd", CELL_DEBUG_CMD},       /**< SPUs dump command buffer info */
  98    {"cache", CELL_DEBUG_CACHE},   /**< report texture cache stats on exit */
  99    {NULL, 0}
 100 };
 101
 102 static unsigned int
 103 cell_is_texture_referenced( struct pipe_context *pipe,
 104                             struct pipe_texture *texture,
 105                             unsigned face, unsigned level)
 106 {
 107    /**
 108     * FIXME: Optimize.
 109     */
 110
 111    return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
 112 }
 113
 114 static unsigned int
 115 cell_is_buffer_referenced( struct pipe_context *pipe,
 116                            struct pipe_buffer *buf)
 117 {
 118    /**
 119     * FIXME: Optimize.
 120     */
 121
 122    return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
 123 }
 124
 125 struct pipe_context *
 126 cell_create_context(struct pipe_screen *screen,
 127                     struct cell_winsys *cws)
 128 {
 129    struct cell_context *cell;
 130    uint i;
 131
 132    /* some fields need to be 16-byte aligned, so align the whole object */
 133    cell = (struct cell_context*) align_malloc(sizeof(struct cell_context), 16);
 134    if (!cell)
 135       return NULL;
 136
 137    memset(cell, 0, sizeof(*cell));
 138
 139    cell->winsys = cws;
 140    cell->pipe.winsys = screen->winsys;
 141    cell->pipe.screen = screen;
 142    cell->pipe.destroy = cell_destroy_context;
 143
 144    cell->pipe.clear = cell_clear;
 145    cell->pipe.flush = cell_flush;
 146
 147    cell->pipe.is_texture_referenced = cell_is_texture_referenced;
 148    cell->pipe.is_buffer_referenced = cell_is_buffer_referenced;
 149
 150 #if 0
 151    cell->pipe.begin_query = cell_begin_query;
 152    cell->pipe.end_query = cell_end_query;
 153    cell->pipe.wait_query = cell_wait_query;
 154 #endif
 155
 156    cell_init_draw_functions(cell);
 157    cell_init_state_functions(cell);
 158    cell_init_shader_functions(cell);
 159    cell_init_surface_functions(cell);
 160    cell_init_vertex_functions(cell);
 161
 162    cell->draw = cell_draw_create(cell);
 163
 164    /* Create cache of fragment ops generated code */
 165    cell->fragment_ops_cache =
 166       util_new_keymap(sizeof(struct cell_fragment_ops_key), ~0, NULL);
 167
 168    cell_init_vbuf(cell);
 169
 170    draw_set_rasterize_stage(cell->draw, cell->vbuf);
 171
 172    /* convert all points/lines to tris for the time being */
 173    draw_wide_point_threshold(cell->draw, 0.0);
 174    draw_wide_line_threshold(cell->draw, 0.0);
 175
 176    /* get env vars or read config file to get debug flags */
 177    cell->debug_flags = debug_get_flags_option("CELL_DEBUG",
 178                                               cell_debug_flags,
 179                                               0 );
 180
 181    for (i = 0; i < CELL_NUM_BUFFERS; i++)
 182       cell_fence_init(&cell->fenced_buffers[i].fence);
 183
 184
 185    /*
 186     * SPU stuff
 187     */
 188    /* This call only works with SDK 3.0.  Anyone still using 2.1??? */
 189    cell->num_cells = spe_cpu_info_get(SPE_COUNT_PHYSICAL_CPU_NODES, -1);
 190    cell->num_spus = spe_cpu_info_get(SPE_COUNT_USABLE_SPES, -1);
 191    if (cell->debug_flags) {
 192       printf("Cell: found %d Cell(s) with %u SPUs\n",
 193              cell->num_cells, cell->num_spus);
 194    }
 195    if (getenv("CELL_NUM_SPUS")) {
 196       cell->num_spus = atoi(getenv("CELL_NUM_SPUS"));
 197       assert(cell->num_spus > 0);
 198    }
 199
 200    cell_start_spus(cell);
 201
 202    cell_init_batch_buffers(cell);
 203
 204    /* make sure SPU initializations are done before proceeding */
 205    cell_flush_int(cell, CELL_FLUSH_WAIT);
 206
 207    return &cell->pipe;
 208 }