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/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
/* Author:
* Keith Whitwell <keith@tungstengraphics.com>
*/
#include "pipe/p_defines.h"
#include "draw/draw_context.h"
#include "i915_context.h"
#include "i915_reg.h"
#include "i915_batch.h"
/**
* In future we may want a fence-like interface instead of finish.
*/
static void i915_flush( struct pipe_context *pipe,
unsigned flags )
{
struct i915_context *i915 = i915_context(pipe);
draw_flush(i915->draw);
/* Do we need to emit an MI_FLUSH command to flush the hardware
* caches?
*/
if (flags & (PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_TEXTURE_CACHE)) {
unsigned flush = MI_FLUSH;
if (!(flags & PIPE_FLUSH_RENDER_CACHE))
flush |= INHIBIT_FLUSH_RENDER_CACHE;
if (flags & PIPE_FLUSH_TEXTURE_CACHE)
flush |= FLUSH_MAP_CACHE;
if (!BEGIN_BATCH(1, 0)) {
FLUSH_BATCH();
assert(BEGIN_BATCH(1, 0));
}
OUT_BATCH( flush );
ADVANCE_BATCH();
}
/* If there are no flags, just flush pending commands to hardware:
*/
FLUSH_BATCH();
if (flags & PIPE_FLUSH_WAIT) {
i915->winsys->batch_finish(i915->winsys);
}
}
void i915_init_flush_functions( struct i915_context *i915 )
{
i915->pipe.flush = i915_flush;
}
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