src/gallium/drivers/i915/i915_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 /* Author:
  29  *    Keith Whitwell <keith@tungstengraphics.com>
  30  */
  31
  32
  33 #include "pipe/p_defines.h"
  34 #include "draw/draw_context.h"
  35 #include "i915_context.h"
  36 #include "i915_reg.h"
  37 #include "i915_batch.h"
  38 #include "i915_debug.h"
  39
  40
  41 static void i915_flush_pipe( struct pipe_context *pipe,
  42                              struct pipe_fence_handle **fence,
  43                              enum pipe_flush_flags flags )
  44 {
  45    struct i915_context *i915 = i915_context(pipe);
  46
  47    /* Only shortcut this if we have no fence, otherwise we must flush the
  48     * empty batchbuffer to get our fence back.
  49     */
  50    if (!fence && i915->batch && (i915->batch->map == i915->batch->ptr)) {
  51       return;
  52    }
  53
  54    /* If there are no flags, just flush pending commands to hardware:
  55     */
  56    FLUSH_BATCH(fence);
  57
  58    I915_DBG(DBG_FLUSH, "%s: #####\n", __FUNCTION__);
  59 }
  60
  61 void i915_init_flush_functions( struct i915_context *i915 )
  62 {
  63    i915->base.flush = i915_flush_pipe;
  64 }
  65
  66 /**
  67  * Here we handle all the notifications that needs to go out on a flush.
  68  * XXX might move above function to i915_pipe_flush.c and leave this here.
  69  */
  70 void i915_flush(struct i915_context *i915, struct pipe_fence_handle **fence)
  71 {
  72    struct i915_winsys_batchbuffer *batch = i915->batch;
  73
  74    batch->iws->batchbuffer_flush(batch, fence);
  75    i915->vbo_flushed = 1;
  76    i915->hardware_dirty = ~0;
  77    i915->immediate_dirty = ~0;
  78    i915->dynamic_dirty = ~0;
  79    i915->static_dirty = ~0;
  80    /* kernel emits flushes in between batchbuffers */
  81    i915->flush_dirty = 0;
  82    i915->fired_vertices += i915->queued_vertices;
  83    i915->queued_vertices = 0;
  84 }