i915_flush.c revision 62bcf2e6ad7f74affa4e1240c2ea41339a4c95db
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( 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 i915->vbo_flushed = 1; 78 79 I915_DBG(DBG_FLUSH, "%s: #####\n", __FUNCTION__); 80} 81 82void i915_init_flush_functions( struct i915_context *i915 ) 83{ 84 i915->base.flush = i915_flush; 85} 86