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 "brw_util.h"
28 #include "program/prog_parameter.h"
29 #include "program/prog_statevars.h"
30 #include "intel_batchbuffer.h"
31
32 static void
upload_vs_state(struct brw_context * brw)33 upload_vs_state(struct brw_context *brw)
34 {
35 const struct gen_device_info *devinfo = &brw->screen->devinfo;
36 const struct brw_stage_state *stage_state = &brw->vs.base;
37 uint32_t floating_point_mode = 0;
38
39 /* BRW_NEW_VS_PROG_DATA */
40 const struct brw_stage_prog_data *prog_data = stage_state->prog_data;
41 const struct brw_vue_prog_data *vue_prog_data =
42 brw_vue_prog_data(stage_state->prog_data);
43
44 assert(vue_prog_data->dispatch_mode == DISPATCH_MODE_SIMD8 ||
45 vue_prog_data->dispatch_mode == DISPATCH_MODE_4X2_DUAL_OBJECT);
46
47 if (prog_data->use_alt_mode)
48 floating_point_mode = GEN6_VS_FLOATING_POINT_MODE_ALT;
49
50 BEGIN_BATCH(9);
51 OUT_BATCH(_3DSTATE_VS << 16 | (9 - 2));
52 OUT_BATCH(stage_state->prog_offset);
53 OUT_BATCH(0);
54 OUT_BATCH(floating_point_mode |
55 ((ALIGN(stage_state->sampler_count, 4) / 4) <<
56 GEN6_VS_SAMPLER_COUNT_SHIFT) |
57 ((prog_data->binding_table.size_bytes / 4) <<
58 GEN6_VS_BINDING_TABLE_ENTRY_COUNT_SHIFT));
59
60 if (prog_data->total_scratch) {
61 OUT_RELOC64(stage_state->scratch_bo,
62 I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER,
63 ffs(stage_state->per_thread_scratch) - 11);
64 } else {
65 OUT_BATCH(0);
66 OUT_BATCH(0);
67 }
68
69 OUT_BATCH((prog_data->dispatch_grf_start_reg <<
70 GEN6_VS_DISPATCH_START_GRF_SHIFT) |
71 (vue_prog_data->urb_read_length <<
72 GEN6_VS_URB_READ_LENGTH_SHIFT) |
73 (0 << GEN6_VS_URB_ENTRY_READ_OFFSET_SHIFT));
74
75 uint32_t simd8_enable =
76 vue_prog_data->dispatch_mode == DISPATCH_MODE_SIMD8 ?
77 GEN8_VS_SIMD8_ENABLE : 0;
78 OUT_BATCH(((devinfo->max_vs_threads - 1) << HSW_VS_MAX_THREADS_SHIFT) |
79 GEN6_VS_STATISTICS_ENABLE |
80 simd8_enable |
81 GEN6_VS_ENABLE);
82
83 OUT_BATCH(vue_prog_data->cull_distance_mask);
84 ADVANCE_BATCH();
85 }
86
87 const struct brw_tracked_state gen8_vs_state = {
88 .dirty = {
89 .mesa = 0,
90 .brw = BRW_NEW_BATCH |
91 BRW_NEW_BLORP |
92 BRW_NEW_CONTEXT |
93 BRW_NEW_VS_PROG_DATA,
94 },
95 .emit = upload_vs_state,
96 };
97