i915_flush.c revision b9baad2aff6ddc5145d91cbfb81d083a21990a80 
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
41static void i915_flush_pipe( struct pipe_context *pipe,
42                             unsigned flags,
43                             struct pipe_fence_handle **fence )
44{
45   struct i915_context *i915 = i915_context(pipe);
46
47   draw_flush(i915->draw);
48
49#if 0
50   /* Do we need to emit an MI_FLUSH command to flush the hardware
51    * caches?
52    */
53   if (flags & (PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_TEXTURE_CACHE)) {
54      unsigned flush = MI_FLUSH;
55
56      if (!(flags & PIPE_FLUSH_RENDER_CACHE))
57	 flush |= INHIBIT_FLUSH_RENDER_CACHE;
58
59      if (flags & PIPE_FLUSH_TEXTURE_CACHE)
60	 flush |= FLUSH_MAP_CACHE;
61
62      if (!BEGIN_BATCH(1, 0)) {
63	 FLUSH_BATCH(NULL);
64	 assert(BEGIN_BATCH(1, 0));
65      }
66      OUT_BATCH( flush );
67   }
68#endif
69
70   if (i915->batch->map == i915->batch->ptr) {
71      return;
72   }
73
74   /* If there are no flags, just flush pending commands to hardware:
75    */
76   FLUSH_BATCH(fence);
77
78   I915_DBG(DBG_FLUSH, "%s: #####\n", __FUNCTION__);
79}
80
81void i915_init_flush_functions( struct i915_context *i915 )
82{
83   i915->base.flush = i915_flush_pipe;
84}
85
86/**
87 * Here we handle all the notifications that needs to go out on a flush.
88 * XXX might move above function to i915_pipe_flush.c and leave this here.
89 */
90void i915_flush(struct i915_context *i915, struct pipe_fence_handle **fence)
91{
92   struct i915_winsys_batchbuffer *batch = i915->batch;
93
94   batch->iws->batchbuffer_flush(batch, fence);
95   i915->vbo_flushed = 1;
96   i915->hardware_dirty = ~0;
97   i915->immediate_dirty = ~0;
98}
99