1 /* 2 * Copyright 2013 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 29 static void 30 gen8_upload_gs_state(struct brw_context *brw) 31 { 32 const struct gen_device_info *devinfo = &brw->screen->devinfo; 33 const struct brw_stage_state *stage_state = &brw->gs.base; 34 /* BRW_NEW_GEOMETRY_PROGRAM */ 35 bool active = brw->geometry_program; 36 /* BRW_NEW_GS_PROG_DATA */ 37 const struct brw_stage_prog_data *prog_data = stage_state->prog_data; 38 const struct brw_vue_prog_data *vue_prog_data = 39 brw_vue_prog_data(stage_state->prog_data); 40 const struct brw_gs_prog_data *gs_prog_data = 41 brw_gs_prog_data(stage_state->prog_data); 42 43 if (active) { 44 int urb_entry_write_offset = 1; 45 uint32_t urb_entry_output_length = 46 ((vue_prog_data->vue_map.num_slots + 1) / 2 - urb_entry_write_offset); 47 48 if (urb_entry_output_length == 0) 49 urb_entry_output_length = 1; 50 51 BEGIN_BATCH(10); 52 OUT_BATCH(_3DSTATE_GS << 16 | (10 - 2)); 53 OUT_BATCH(stage_state->prog_offset); 54 OUT_BATCH(0); 55 OUT_BATCH(gs_prog_data->vertices_in | 56 ((ALIGN(stage_state->sampler_count, 4)/4) << 57 GEN6_GS_SAMPLER_COUNT_SHIFT) | 58 ((prog_data->binding_table.size_bytes / 4) << 59 GEN6_GS_BINDING_TABLE_ENTRY_COUNT_SHIFT)); 60 61 if (prog_data->total_scratch) { 62 OUT_RELOC64(stage_state->scratch_bo, 63 I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 64 ffs(stage_state->per_thread_scratch) - 11); 65 } else { 66 OUT_BATCH(0); 67 OUT_BATCH(0); 68 } 69 70 /* DW6 */ 71 OUT_BATCH(((gs_prog_data->output_vertex_size_hwords * 2 - 1) << 72 GEN7_GS_OUTPUT_VERTEX_SIZE_SHIFT) | 73 (gs_prog_data->output_topology << 74 GEN7_GS_OUTPUT_TOPOLOGY_SHIFT) | 75 (vue_prog_data->include_vue_handles ? 76 GEN7_GS_INCLUDE_VERTEX_HANDLES : 0) | 77 (vue_prog_data->urb_read_length << 78 GEN6_GS_URB_READ_LENGTH_SHIFT) | 79 (0 << GEN6_GS_URB_ENTRY_READ_OFFSET_SHIFT) | 80 (prog_data->dispatch_grf_start_reg << 81 GEN6_GS_DISPATCH_START_GRF_SHIFT)); 82 83 uint32_t dw7 = (gs_prog_data->control_data_header_size_hwords << 84 GEN7_GS_CONTROL_DATA_HEADER_SIZE_SHIFT) | 85 SET_FIELD(vue_prog_data->dispatch_mode, 86 GEN7_GS_DISPATCH_MODE) | 87 ((gs_prog_data->invocations - 1) << 88 GEN7_GS_INSTANCE_CONTROL_SHIFT) | 89 GEN6_GS_STATISTICS_ENABLE | 90 (gs_prog_data->include_primitive_id ? 91 GEN7_GS_INCLUDE_PRIMITIVE_ID : 0) | 92 GEN7_GS_REORDER_TRAILING | 93 GEN7_GS_ENABLE; 94 uint32_t dw8 = gs_prog_data->control_data_format << 95 HSW_GS_CONTROL_DATA_FORMAT_SHIFT; 96 97 if (gs_prog_data->static_vertex_count != -1) { 98 dw8 |= GEN8_GS_STATIC_OUTPUT | 99 SET_FIELD(gs_prog_data->static_vertex_count, 100 GEN8_GS_STATIC_VERTEX_COUNT); 101 } 102 103 if (brw->gen < 9) 104 dw7 |= (devinfo->max_gs_threads / 2 - 1) << HSW_GS_MAX_THREADS_SHIFT; 105 else 106 dw8 |= devinfo->max_gs_threads - 1; 107 108 /* DW7 */ 109 OUT_BATCH(dw7); 110 111 /* DW8 */ 112 OUT_BATCH(dw8); 113 114 /* DW9 */ 115 OUT_BATCH(vue_prog_data->cull_distance_mask | 116 (urb_entry_output_length << GEN8_GS_URB_OUTPUT_LENGTH_SHIFT) | 117 (urb_entry_write_offset << 118 GEN8_GS_URB_ENTRY_OUTPUT_OFFSET_SHIFT)); 119 ADVANCE_BATCH(); 120 } else { 121 BEGIN_BATCH(10); 122 OUT_BATCH(_3DSTATE_GS << 16 | (10 - 2)); 123 OUT_BATCH(0); /* prog_bo */ 124 OUT_BATCH(0); 125 OUT_BATCH(0); 126 OUT_BATCH(0); /* scratch space base offset */ 127 OUT_BATCH(0); 128 OUT_BATCH(0); 129 OUT_BATCH(GEN6_GS_STATISTICS_ENABLE); 130 OUT_BATCH(0); 131 OUT_BATCH(0); 132 ADVANCE_BATCH(); 133 } 134 } 135 136 const struct brw_tracked_state gen8_gs_state = { 137 .dirty = { 138 .mesa = 0, 139 .brw = BRW_NEW_BATCH | 140 BRW_NEW_BLORP | 141 BRW_NEW_CONTEXT | 142 BRW_NEW_GEOMETRY_PROGRAM | 143 BRW_NEW_GS_PROG_DATA, 144 }, 145 .emit = gen8_upload_gs_state, 146 }; 147
