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  1. /**************************************************************************
  2.  *
  3.  * Copyright 2007 VMware, Inc.
  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 VMWARE 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. /* Author:
  29.  *    Keith Whitwell <keithw@vmware.com>
  30.  */
  31.  
  32.  
  33. #include "pipe/p_defines.h"
  34. #include "draw/draw_context.h"
  35. #include "i915_context.h"
  36. #include "i915_batch.h"
  37. #include "i915_debug.h"
  38. #include "i915_reg.h"
  39.  
  40.  
  41. static void i915_flush_pipe( struct pipe_context *pipe,
  42.                              struct pipe_fence_handle **fence,
  43.                              unsigned flags )
  44. {
  45.    struct i915_context *i915 = i915_context(pipe);
  46.    enum i915_winsys_flush_flags winsys_flags = I915_FLUSH_ASYNC;
  47.  
  48.    if (!i915->batch)
  49.       return;
  50.  
  51.    /* Only shortcut this if we have no fence, otherwise we must flush the
  52.     * empty batchbuffer to get our fence back.
  53.     */
  54.    if (!fence && (i915->batch->map == i915->batch->ptr)) {
  55.       return;
  56.    }
  57.  
  58.    if (flags == PIPE_FLUSH_END_OF_FRAME)
  59.       winsys_flags = I915_FLUSH_END_OF_FRAME;
  60.  
  61.    FLUSH_BATCH(fence, winsys_flags);
  62.  
  63.    I915_DBG(DBG_FLUSH, "%s: #####\n", __FUNCTION__);
  64. }
  65.  
  66. void i915_init_flush_functions( struct i915_context *i915 )
  67. {
  68.    i915->base.flush = i915_flush_pipe;
  69. }
  70.  
  71. /**
  72.  * Here we handle all the notifications that needs to go out on a flush.
  73.  * XXX might move above function to i915_pipe_flush.c and leave this here.
  74.  */
  75. void i915_flush(struct i915_context *i915,
  76.                 struct pipe_fence_handle **fence,
  77.                 unsigned flags)
  78. {
  79.    struct i915_winsys_batchbuffer *batch = i915->batch;
  80.  
  81.    batch->iws->batchbuffer_flush(batch, fence, flags);
  82.    i915->vbo_flushed = 1;
  83.    i915->hardware_dirty = ~0;
  84.    i915->immediate_dirty = ~0;
  85.    i915->dynamic_dirty = ~0;
  86.    i915->static_dirty = ~0;
  87.    /* kernel emits flushes in between batchbuffers */
  88.    i915->flush_dirty = 0;
  89.    i915->fired_vertices += i915->queued_vertices;
  90.    i915->queued_vertices = 0;
  91. }
  92.