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      1 /*
      2  * Copyright  2011 Intel Corporation
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8  * and/or sell copies of the Software, and to permit persons to whom the
      9  * Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice (including the next
     12  * paragraph) shall be included in all copies or substantial portions of the
     13  * Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
     21  * IN THE SOFTWARE.
     22  */
     23 
     24 #include "brw_context.h"
     25 #include "brw_state.h"
     26 #include "brw_defines.h"
     27 #include "intel_batchbuffer.h"
     28 
     29 static void
     30 disable_stages(struct brw_context *brw)
     31 {
     32    struct intel_context *intel = &brw->intel;
     33 
     34    assert(!brw->gs.prog_active);
     35 
     36    /* Disable the Geometry Shader (GS) Unit */
     37    BEGIN_BATCH(7);
     38    OUT_BATCH(_3DSTATE_CONSTANT_GS << 16 | (7 - 2));
     39    OUT_BATCH(0);
     40    OUT_BATCH(0);
     41    OUT_BATCH(0);
     42    OUT_BATCH(0);
     43    OUT_BATCH(0);
     44    OUT_BATCH(0);
     45    ADVANCE_BATCH();
     46 
     47    BEGIN_BATCH(7);
     48    OUT_BATCH(_3DSTATE_GS << 16 | (7 - 2));
     49    OUT_BATCH(0); /* prog_bo */
     50    OUT_BATCH((0 << GEN6_GS_SAMPLER_COUNT_SHIFT) |
     51 	     (0 << GEN6_GS_BINDING_TABLE_ENTRY_COUNT_SHIFT));
     52    OUT_BATCH(0); /* scratch space base offset */
     53    OUT_BATCH((1 << GEN6_GS_DISPATCH_START_GRF_SHIFT) |
     54 	     (0 << GEN6_GS_URB_READ_LENGTH_SHIFT) |
     55 	     GEN7_GS_INCLUDE_VERTEX_HANDLES |
     56 	     (0 << GEN6_GS_URB_ENTRY_READ_OFFSET_SHIFT));
     57    OUT_BATCH((0 << GEN6_GS_MAX_THREADS_SHIFT) |
     58 	     GEN6_GS_STATISTICS_ENABLE);
     59    OUT_BATCH(0);
     60    ADVANCE_BATCH();
     61 
     62    BEGIN_BATCH(2);
     63    OUT_BATCH(_3DSTATE_BINDING_TABLE_POINTERS_GS << 16 | (2 - 2));
     64    OUT_BATCH(0);
     65    ADVANCE_BATCH();
     66 
     67    /* Disable the HS Unit */
     68    BEGIN_BATCH(7);
     69    OUT_BATCH(_3DSTATE_CONSTANT_HS << 16 | (7 - 2));
     70    OUT_BATCH(0);
     71    OUT_BATCH(0);
     72    OUT_BATCH(0);
     73    OUT_BATCH(0);
     74    OUT_BATCH(0);
     75    OUT_BATCH(0);
     76    ADVANCE_BATCH();
     77 
     78    BEGIN_BATCH(7);
     79    OUT_BATCH(_3DSTATE_HS << 16 | (7 - 2));
     80    OUT_BATCH(0);
     81    OUT_BATCH(0);
     82    OUT_BATCH(0);
     83    OUT_BATCH(0);
     84    OUT_BATCH(0);
     85    OUT_BATCH(0);
     86    ADVANCE_BATCH();
     87 
     88    BEGIN_BATCH(2);
     89    OUT_BATCH(_3DSTATE_BINDING_TABLE_POINTERS_HS << 16 | (2 - 2));
     90    OUT_BATCH(0);
     91    ADVANCE_BATCH();
     92 
     93    /* Disable the TE */
     94    BEGIN_BATCH(4);
     95    OUT_BATCH(_3DSTATE_TE << 16 | (4 - 2));
     96    OUT_BATCH(0);
     97    OUT_BATCH(0);
     98    OUT_BATCH(0);
     99    ADVANCE_BATCH();
    100 
    101    /* Disable the DS Unit */
    102    BEGIN_BATCH(7);
    103    OUT_BATCH(_3DSTATE_CONSTANT_DS << 16 | (7 - 2));
    104    OUT_BATCH(0);
    105    OUT_BATCH(0);
    106    OUT_BATCH(0);
    107    OUT_BATCH(0);
    108    OUT_BATCH(0);
    109    OUT_BATCH(0);
    110    ADVANCE_BATCH();
    111 
    112    BEGIN_BATCH(6);
    113    OUT_BATCH(_3DSTATE_DS << 16 | (6 - 2));
    114    OUT_BATCH(0);
    115    OUT_BATCH(0);
    116    OUT_BATCH(0);
    117    OUT_BATCH(0);
    118    OUT_BATCH(0);
    119    ADVANCE_BATCH();
    120 
    121    BEGIN_BATCH(2);
    122    OUT_BATCH(_3DSTATE_BINDING_TABLE_POINTERS_DS << 16 | (2 - 2));
    123    OUT_BATCH(0);
    124    ADVANCE_BATCH();
    125 }
    126 
    127 const struct brw_tracked_state gen7_disable_stages = {
    128    .dirty = {
    129       .mesa  = 0,
    130       .brw   = BRW_NEW_BATCH,
    131       .cache = 0,
    132    },
    133    .emit = disable_stages,
    134 };
    135