src/gallium/drivers/cell/ppu/cell_flush.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 #include "cell_context.h"
  30 #include "cell_batch.h"
  31 #include "cell_flush.h"
  32 #include "cell_spu.h"
  33 #include "cell_render.h"
  34 #include "draw/draw_context.h"
  35
  36
  37 /**
  38  * Called via pipe->flush()
  39  */
  40 void
  41 cell_flush(struct pipe_context *pipe,
  42            struct pipe_fence_handle **fence)
  43 {
  44    struct cell_context *cell = cell_context(pipe);
  45
  46    if (fence) {
  47       *fence = NULL;
  48    }
  49
  50    flags |= CELL_FLUSH_WAIT;
  51
  52    draw_flush( cell->draw );
  53    cell_flush_int(cell, flags);
  54 }
  55
  56
  57 /**
  58  * Cell internal flush function.  Send the current batch buffer to all SPUs.
  59  * If flags & CELL_FLUSH_WAIT, do not return until the SPUs are idle.
  60  * \param flags  bitmask of flags CELL_FLUSH_WAIT, or zero
  61  */
  62 void
  63 cell_flush_int(struct cell_context *cell, unsigned flags)
  64 {
  65    static boolean flushing = FALSE;  /* recursion catcher */
  66    uint i;
  67
  68    ASSERT(!flushing);
  69    flushing = TRUE;
  70
  71    if (flags & CELL_FLUSH_WAIT) {
  72       STATIC_ASSERT(sizeof(opcode_t) % 16 == 0);
  73       opcode_t *cmd = (opcode_t*) cell_batch_alloc16(cell, sizeof(opcode_t));
  74       *cmd[0] = CELL_CMD_FINISH;
  75    }
  76
  77    cell_batch_flush(cell);
  78
  79 #if 0
  80    /* Send CMD_FINISH to all SPUs */
  81    for (i = 0; i < cell->num_spus; i++) {
  82       send_mbox_message(cell_global.spe_contexts[i], CELL_CMD_FINISH);
  83    }
  84 #endif
  85
  86    if (flags & CELL_FLUSH_WAIT) {
  87       /* Wait for ack */
  88       for (i = 0; i < cell->num_spus; i++) {
  89          uint k = wait_mbox_message(cell_global.spe_contexts[i]);
  90          assert(k == CELL_CMD_FINISH);
  91       }
  92    }
  93
  94    flushing = FALSE;
  95 }
  96
  97
  98 void
  99 cell_flush_buffer_range(struct cell_context *cell, void *ptr,
 100                         unsigned size)
 101 {
 102    STATIC_ASSERT((sizeof(opcode_t) + sizeof(struct cell_buffer_range)) % 16 == 0);
 103    uint32_t *batch = (uint32_t*)cell_batch_alloc16(cell,
 104       sizeof(opcode_t) + sizeof(struct cell_buffer_range));
 105    struct cell_buffer_range *br = (struct cell_buffer_range *) &batch[4];
 106    batch[0] = CELL_CMD_FLUSH_BUFFER_RANGE;
 107    br->base = (uintptr_t) ptr;
 108    br->size = size;
 109 }