| /* |
| Copyright (C) Intel Corp. 2006. All Rights Reserved. |
| Intel funded Tungsten Graphics to |
| develop this 3D driver. |
| |
| Permission is hereby granted, free of charge, to any person obtaining |
| a copy of this software and associated documentation files (the |
| "Software"), to deal in the Software without restriction, including |
| without limitation the rights to use, copy, modify, merge, publish, |
| distribute, sublicense, and/or sell copies of the Software, and to |
| permit persons to whom the Software is furnished to do so, subject to |
| the following conditions: |
| |
| The above copyright notice and this permission notice (including the |
| next paragraph) shall be included in all copies or substantial |
| portions of the Software. |
| |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE |
| LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
| OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
| WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| |
| **********************************************************************/ |
| /* |
| * Authors: |
| * Keith Whitwell <keithw@vmware.com> |
| */ |
| |
| |
| |
| #include "brw_context.h" |
| #include "brw_state.h" |
| #include "brw_defines.h" |
| #include "main/macros.h" |
| |
| static void |
| brw_upload_vs_unit(struct brw_context *brw) |
| { |
| const struct gen_device_info *devinfo = &brw->screen->devinfo; |
| struct brw_stage_state *stage_state = &brw->vs.base; |
| const struct brw_stage_prog_data *prog_data = stage_state->prog_data; |
| const struct brw_vue_prog_data *vue_prog_data = |
| brw_vue_prog_data(stage_state->prog_data); |
| |
| struct brw_vs_unit_state *vs; |
| |
| vs = brw_state_batch(brw, AUB_TRACE_VS_STATE, |
| sizeof(*vs), 32, &stage_state->state_offset); |
| memset(vs, 0, sizeof(*vs)); |
| |
| /* BRW_NEW_PROGRAM_CACHE | BRW_NEW_VS_PROG_DATA */ |
| vs->thread0.grf_reg_count = ALIGN(vue_prog_data->total_grf, 16) / 16 - 1; |
| vs->thread0.kernel_start_pointer = |
| brw_program_reloc(brw, |
| stage_state->state_offset + |
| offsetof(struct brw_vs_unit_state, thread0), |
| stage_state->prog_offset + |
| (vs->thread0.grf_reg_count << 1)) >> 6; |
| |
| if (prog_data->use_alt_mode) |
| vs->thread1.floating_point_mode = BRW_FLOATING_POINT_NON_IEEE_754; |
| else |
| vs->thread1.floating_point_mode = BRW_FLOATING_POINT_IEEE_754; |
| |
| /* Choosing multiple program flow means that we may get 2-vertex threads, |
| * which will have the channel mask for dwords 4-7 enabled in the thread, |
| * and those dwords will be written to the second URB handle when we |
| * brw_urb_WRITE() results. |
| */ |
| /* Force single program flow on Ironlake. We cannot reliably get |
| * all applications working without it. See: |
| * https://bugs.freedesktop.org/show_bug.cgi?id=29172 |
| * |
| * The most notable and reliably failing application is the Humus |
| * demo "CelShading" |
| */ |
| vs->thread1.single_program_flow = (brw->gen == 5); |
| |
| vs->thread1.binding_table_entry_count = |
| prog_data->binding_table.size_bytes / 4; |
| |
| if (prog_data->total_scratch != 0) { |
| vs->thread2.scratch_space_base_pointer = |
| stage_state->scratch_bo->offset64 >> 10; /* reloc */ |
| vs->thread2.per_thread_scratch_space = |
| ffs(stage_state->per_thread_scratch) - 11; |
| } else { |
| vs->thread2.scratch_space_base_pointer = 0; |
| vs->thread2.per_thread_scratch_space = 0; |
| } |
| |
| vs->thread3.urb_entry_read_length = vue_prog_data->urb_read_length; |
| vs->thread3.const_urb_entry_read_length = prog_data->curb_read_length; |
| vs->thread3.dispatch_grf_start_reg = prog_data->dispatch_grf_start_reg; |
| vs->thread3.urb_entry_read_offset = 0; |
| |
| /* BRW_NEW_CURBE_OFFSETS */ |
| vs->thread3.const_urb_entry_read_offset = brw->curbe.vs_start * 2; |
| |
| /* BRW_NEW_URB_FENCE */ |
| if (brw->gen == 5) { |
| switch (brw->urb.nr_vs_entries) { |
| case 8: |
| case 12: |
| case 16: |
| case 32: |
| case 64: |
| case 96: |
| case 128: |
| case 168: |
| case 192: |
| case 224: |
| case 256: |
| vs->thread4.nr_urb_entries = brw->urb.nr_vs_entries >> 2; |
| break; |
| default: |
| unreachable("not reached"); |
| } |
| } else { |
| switch (brw->urb.nr_vs_entries) { |
| case 8: |
| case 12: |
| case 16: |
| case 32: |
| break; |
| case 64: |
| assert(brw->is_g4x); |
| break; |
| default: |
| unreachable("not reached"); |
| } |
| vs->thread4.nr_urb_entries = brw->urb.nr_vs_entries; |
| } |
| |
| vs->thread4.urb_entry_allocation_size = brw->urb.vsize - 1; |
| |
| vs->thread4.max_threads = CLAMP(brw->urb.nr_vs_entries / 2, |
| 1, devinfo->max_vs_threads) - 1; |
| |
| if (brw->gen == 5) |
| vs->vs5.sampler_count = 0; /* hardware requirement */ |
| else { |
| vs->vs5.sampler_count = (stage_state->sampler_count + 3) / 4; |
| } |
| |
| |
| if (unlikely(INTEL_DEBUG & DEBUG_STATS)) |
| vs->thread4.stats_enable = 1; |
| |
| /* Vertex program always enabled: |
| */ |
| vs->vs6.vs_enable = 1; |
| |
| /* Set the sampler state pointer, and its reloc |
| */ |
| if (stage_state->sampler_count) { |
| /* BRW_NEW_SAMPLER_STATE_TABLE - reloc */ |
| vs->vs5.sampler_state_pointer = |
| (brw->batch.bo->offset64 + stage_state->sampler_offset) >> 5; |
| drm_intel_bo_emit_reloc(brw->batch.bo, |
| stage_state->state_offset + |
| offsetof(struct brw_vs_unit_state, vs5), |
| brw->batch.bo, |
| (stage_state->sampler_offset | |
| vs->vs5.sampler_count), |
| I915_GEM_DOMAIN_INSTRUCTION, 0); |
| } |
| |
| /* Emit scratch space relocation */ |
| if (prog_data->total_scratch != 0) { |
| drm_intel_bo_emit_reloc(brw->batch.bo, |
| stage_state->state_offset + |
| offsetof(struct brw_vs_unit_state, thread2), |
| stage_state->scratch_bo, |
| vs->thread2.per_thread_scratch_space, |
| I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER); |
| } |
| |
| brw->ctx.NewDriverState |= BRW_NEW_GEN4_UNIT_STATE; |
| } |
| |
| const struct brw_tracked_state brw_vs_unit = { |
| .dirty = { |
| .mesa = 0, |
| .brw = BRW_NEW_BATCH | |
| BRW_NEW_BLORP | |
| BRW_NEW_CURBE_OFFSETS | |
| BRW_NEW_PROGRAM_CACHE | |
| BRW_NEW_SAMPLER_STATE_TABLE | |
| BRW_NEW_URB_FENCE | |
| BRW_NEW_VS_PROG_DATA, |
| }, |
| .emit = brw_upload_vs_unit, |
| }; |
