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 "pipe/p_winsys.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_flush.h"
  51 #include "cell_state.h"
  52 #include "cell_surface.h"
  53 #include "cell_spu.h"
  54 #include "cell_pipe_state.h"
  55 #include "cell_texture.h"
  56 #include "cell_vbuf.h"
  57
  58
  59
  60 static void
  61 cell_destroy_context( struct pipe_context *pipe )
  62 {
  63    struct cell_context *cell = cell_context(pipe);
  64
  65    util_delete_keymap(cell->fragment_ops_cache, NULL);
  66
  67    cell_spu_exit(cell);
  68
  69    align_free(cell);
  70 }
  71
  72
  73 static struct draw_context *
  74 cell_draw_create(struct cell_context *cell)
  75 {
  76    struct draw_context *draw = draw_create();
  77
  78 #if 0 /* broken */
  79    if (getenv("GALLIUM_CELL_VS")) {
  80       /* plug in SPU-based vertex transformation code */
  81       draw->shader_queue_flush = cell_vertex_shader_queue_flush;
  82       draw->driver_private = cell;
  83    }
  84 #endif
  85
  86    return draw;
  87 }
  88
  89
  90 static const struct debug_named_value cell_debug_flags[] = {
  91    {"checker", CELL_DEBUG_CHECKER},/**< modulate tile clear color by SPU ID */
  92    {"asm", CELL_DEBUG_ASM},        /**< dump SPU asm code */
  93    {"sync", CELL_DEBUG_SYNC},      /**< SPUs do synchronous DMA */
  94    {"fragops", CELL_DEBUG_FRAGMENT_OPS}, /**< SPUs emit fragment ops debug messages*/
  95    {"fragopfallback", CELL_DEBUG_FRAGMENT_OP_FALLBACK}, /**< SPUs use reference implementation for fragment ops*/
  96    {"cmd", CELL_DEBUG_CMD},       /**< SPUs dump command buffer info */
  97    {NULL, 0}
  98 };
  99
 100
 101 struct pipe_context *
 102 cell_create_context(struct pipe_screen *screen,
 103                     struct cell_winsys *cws)
 104 {
 105    struct cell_context *cell;
 106
 107    /* some fields need to be 16-byte aligned, so align the whole object */
 108    cell = (struct cell_context*) align_malloc(sizeof(struct cell_context), 16);
 109    if (!cell)
 110       return NULL;
 111
 112    memset(cell, 0, sizeof(*cell));
 113
 114    cell->winsys = cws;
 115    cell->pipe.winsys = screen->winsys;
 116    cell->pipe.screen = screen;
 117    cell->pipe.destroy = cell_destroy_context;
 118
 119    cell->pipe.clear = cell_clear_surface;
 120    cell->pipe.flush = cell_flush;
 121
 122 #if 0
 123    cell->pipe.begin_query = cell_begin_query;
 124    cell->pipe.end_query = cell_end_query;
 125    cell->pipe.wait_query = cell_wait_query;
 126 #endif
 127
 128    cell_init_draw_functions(cell);
 129    cell_init_state_functions(cell);
 130    cell_init_shader_functions(cell);
 131    cell_init_surface_functions(cell);
 132    cell_init_vertex_functions(cell);
 133
 134    cell->draw = cell_draw_create(cell);
 135
 136    /* Create cache of fragment ops generated code */
 137    cell->fragment_ops_cache =
 138       util_new_keymap(sizeof(struct cell_fragment_ops_key), ~0, NULL);
 139
 140    cell_init_vbuf(cell);
 141
 142    draw_set_rasterize_stage(cell->draw, cell->vbuf);
 143
 144    /* convert all points/lines to tris for the time being */
 145    draw_wide_point_threshold(cell->draw, 0.0);
 146    draw_wide_line_threshold(cell->draw, 0.0);
 147
 148    /* get env vars or read config file to get debug flags */
 149    cell->debug_flags = debug_get_flags_option("CELL_DEBUG",
 150                                               cell_debug_flags,
 151                                               0 );
 152
 153    /*
 154     * SPU stuff
 155     */
 156    /* This call only works with SDK 3.0.  Anyone still using 2.1??? */
 157    cell->num_cells = spe_cpu_info_get(SPE_COUNT_PHYSICAL_CPU_NODES, -1);
 158    cell->num_spus = spe_cpu_info_get(SPE_COUNT_USABLE_SPES, 0);
 159    if (cell->debug_flags) {
 160       printf("Cell: found %d Cell(s) with %u SPUs\n",
 161              cell->num_cells, cell->num_spus);
 162    }
 163    if (getenv("CELL_NUM_SPUS")) {
 164       cell->num_spus = atoi(getenv("CELL_NUM_SPUS"));
 165       assert(cell->num_spus > 0);
 166    }
 167
 168    cell_start_spus(cell);
 169
 170    cell_init_batch_buffers(cell);
 171
 172    /* make sure SPU initializations are done before proceeding */
 173    cell_flush_int(cell, CELL_FLUSH_WAIT);
 174
 175    return &cell->pipe;
 176 }