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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 (at) 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