1 /*
2 * Copyright © 2014 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
21 * DEALINGS 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 #include "main/shaderapi.h"
29
30 static void
gen7_upload_tes_push_constants(struct brw_context * brw)31 gen7_upload_tes_push_constants(struct brw_context *brw)
32 {
33 struct brw_stage_state *stage_state = &brw->tes.base;
34 /* BRW_NEW_TESS_PROGRAMS */
35 const struct brw_program *tep = brw_program_const(brw->tess_eval_program);
36
37 if (tep) {
38 /* BRW_NEW_TES_PROG_DATA */
39 const struct brw_stage_prog_data *prog_data = brw->tes.base.prog_data;
40 _mesa_shader_write_subroutine_indices(&brw->ctx, MESA_SHADER_TESS_EVAL);
41 gen6_upload_push_constants(brw, &tep->program, prog_data, stage_state,
42 AUB_TRACE_VS_CONSTANTS);
43 }
44
45 gen7_upload_constant_state(brw, stage_state, tep, _3DSTATE_CONSTANT_DS);
46 }
47
48 const struct brw_tracked_state gen7_tes_push_constants = {
49 .dirty = {
50 .mesa = _NEW_PROGRAM_CONSTANTS,
51 .brw = BRW_NEW_BATCH |
52 BRW_NEW_BLORP |
53 BRW_NEW_PUSH_CONSTANT_ALLOCATION |
54 BRW_NEW_TESS_PROGRAMS |
55 BRW_NEW_TES_PROG_DATA,
56 },
57 .emit = gen7_upload_tes_push_constants,
58 };
59
60 static void
gen7_upload_ds_state(struct brw_context * brw)61 gen7_upload_ds_state(struct brw_context *brw)
62 {
63 const struct gen_device_info *devinfo = &brw->screen->devinfo;
64 const struct brw_stage_state *stage_state = &brw->tes.base;
65 /* BRW_NEW_TESS_PROGRAMS */
66 bool active = brw->tess_eval_program;
67
68 /* BRW_NEW_TES_PROG_DATA */
69 const struct brw_stage_prog_data *prog_data = stage_state->prog_data;
70 const struct brw_vue_prog_data *vue_prog_data =
71 brw_vue_prog_data(stage_state->prog_data);
72 const struct brw_tes_prog_data *tes_prog_data =
73 brw_tes_prog_data(stage_state->prog_data);
74
75 const unsigned thread_count = (devinfo->max_tes_threads - 1) <<
76 (brw->is_haswell ? HSW_DS_MAX_THREADS_SHIFT : GEN7_DS_MAX_THREADS_SHIFT);
77
78 if (active) {
79 BEGIN_BATCH(6);
80 OUT_BATCH(_3DSTATE_DS << 16 | (6 - 2));
81 OUT_BATCH(stage_state->prog_offset);
82 OUT_BATCH(SET_FIELD(DIV_ROUND_UP(stage_state->sampler_count, 4),
83 GEN7_DS_SAMPLER_COUNT) |
84 SET_FIELD(prog_data->binding_table.size_bytes / 4,
85 GEN7_DS_BINDING_TABLE_ENTRY_COUNT));
86 if (prog_data->total_scratch) {
87 OUT_RELOC(stage_state->scratch_bo,
88 I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER,
89 ffs(stage_state->per_thread_scratch) - 11);
90 } else {
91 OUT_BATCH(0);
92 }
93 OUT_BATCH(SET_FIELD(prog_data->dispatch_grf_start_reg,
94 GEN7_DS_DISPATCH_START_GRF) |
95 SET_FIELD(vue_prog_data->urb_read_length,
96 GEN7_DS_URB_READ_LENGTH));
97
98 OUT_BATCH(GEN7_DS_ENABLE |
99 GEN7_DS_STATISTICS_ENABLE |
100 thread_count |
101 (tes_prog_data->domain == BRW_TESS_DOMAIN_TRI ?
102 GEN7_DS_COMPUTE_W_COORDINATE_ENABLE : 0));
103 ADVANCE_BATCH();
104 } else {
105 BEGIN_BATCH(6);
106 OUT_BATCH(_3DSTATE_DS << 16 | (6 - 2));
107 OUT_BATCH(0);
108 OUT_BATCH(0);
109 OUT_BATCH(0);
110 OUT_BATCH(0);
111 OUT_BATCH(0);
112 ADVANCE_BATCH();
113 }
114 brw->tes.enabled = active;
115 }
116
117 const struct brw_tracked_state gen7_ds_state = {
118 .dirty = {
119 .mesa = _NEW_TRANSFORM,
120 .brw = BRW_NEW_BATCH |
121 BRW_NEW_BLORP |
122 BRW_NEW_CONTEXT |
123 BRW_NEW_TESS_PROGRAMS |
124 BRW_NEW_TES_PROG_DATA,
125 },
126 .emit = gen7_upload_ds_state,
127 };
128