/* * Copyright 2012 Advanced Micro Devices, Inc. * * 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 * on the rights to use, copy, modify, merge, publish, distribute, sub * license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL * THE AUTHOR(S) AND/OR THEIR 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: * Christian König */ #include "si_pipe.h" #include "si_shader.h" #include "radeon/r600_cs.h" #include "sid.h" #include "util/u_index_modify.h" #include "util/u_upload_mgr.h" #include "util/u_prim.h" #include "util/u_memory.h" static unsigned si_conv_pipe_prim(unsigned mode) { static const unsigned prim_conv[] = { [PIPE_PRIM_POINTS] = V_008958_DI_PT_POINTLIST, [PIPE_PRIM_LINES] = V_008958_DI_PT_LINELIST, [PIPE_PRIM_LINE_LOOP] = V_008958_DI_PT_LINELOOP, [PIPE_PRIM_LINE_STRIP] = V_008958_DI_PT_LINESTRIP, [PIPE_PRIM_TRIANGLES] = V_008958_DI_PT_TRILIST, [PIPE_PRIM_TRIANGLE_STRIP] = V_008958_DI_PT_TRISTRIP, [PIPE_PRIM_TRIANGLE_FAN] = V_008958_DI_PT_TRIFAN, [PIPE_PRIM_QUADS] = V_008958_DI_PT_QUADLIST, [PIPE_PRIM_QUAD_STRIP] = V_008958_DI_PT_QUADSTRIP, [PIPE_PRIM_POLYGON] = V_008958_DI_PT_POLYGON, [PIPE_PRIM_LINES_ADJACENCY] = V_008958_DI_PT_LINELIST_ADJ, [PIPE_PRIM_LINE_STRIP_ADJACENCY] = V_008958_DI_PT_LINESTRIP_ADJ, [PIPE_PRIM_TRIANGLES_ADJACENCY] = V_008958_DI_PT_TRILIST_ADJ, [PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY] = V_008958_DI_PT_TRISTRIP_ADJ, [PIPE_PRIM_PATCHES] = V_008958_DI_PT_PATCH, [R600_PRIM_RECTANGLE_LIST] = V_008958_DI_PT_RECTLIST }; assert(mode < ARRAY_SIZE(prim_conv)); return prim_conv[mode]; } static unsigned si_conv_prim_to_gs_out(unsigned mode) { static const int prim_conv[] = { [PIPE_PRIM_POINTS] = V_028A6C_OUTPRIM_TYPE_POINTLIST, [PIPE_PRIM_LINES] = V_028A6C_OUTPRIM_TYPE_LINESTRIP, [PIPE_PRIM_LINE_LOOP] = V_028A6C_OUTPRIM_TYPE_LINESTRIP, [PIPE_PRIM_LINE_STRIP] = V_028A6C_OUTPRIM_TYPE_LINESTRIP, [PIPE_PRIM_TRIANGLES] = V_028A6C_OUTPRIM_TYPE_TRISTRIP, [PIPE_PRIM_TRIANGLE_STRIP] = V_028A6C_OUTPRIM_TYPE_TRISTRIP, [PIPE_PRIM_TRIANGLE_FAN] = V_028A6C_OUTPRIM_TYPE_TRISTRIP, [PIPE_PRIM_QUADS] = V_028A6C_OUTPRIM_TYPE_TRISTRIP, [PIPE_PRIM_QUAD_STRIP] = V_028A6C_OUTPRIM_TYPE_TRISTRIP, [PIPE_PRIM_POLYGON] = V_028A6C_OUTPRIM_TYPE_TRISTRIP, [PIPE_PRIM_LINES_ADJACENCY] = V_028A6C_OUTPRIM_TYPE_LINESTRIP, [PIPE_PRIM_LINE_STRIP_ADJACENCY] = V_028A6C_OUTPRIM_TYPE_LINESTRIP, [PIPE_PRIM_TRIANGLES_ADJACENCY] = V_028A6C_OUTPRIM_TYPE_TRISTRIP, [PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY] = V_028A6C_OUTPRIM_TYPE_TRISTRIP, [PIPE_PRIM_PATCHES] = V_028A6C_OUTPRIM_TYPE_POINTLIST, [R600_PRIM_RECTANGLE_LIST] = V_028A6C_OUTPRIM_TYPE_TRISTRIP }; assert(mode < ARRAY_SIZE(prim_conv)); return prim_conv[mode]; } /** * This calculates the LDS size for tessellation shaders (VS, TCS, TES). * LS.LDS_SIZE is shared by all 3 shader stages. * * The information about LDS and other non-compile-time parameters is then * written to userdata SGPRs. */ static void si_emit_derived_tess_state(struct si_context *sctx, const struct pipe_draw_info *info, unsigned *num_patches) { struct radeon_winsys_cs *cs = sctx->b.gfx.cs; struct si_shader_ctx_state *ls = &sctx->vs_shader; /* The TES pointer will only be used for sctx->last_tcs. * It would be wrong to think that TCS = TES. */ struct si_shader_selector *tcs = sctx->tcs_shader.cso ? sctx->tcs_shader.cso : sctx->tes_shader.cso; unsigned tes_sh_base = sctx->shader_userdata.sh_base[PIPE_SHADER_TESS_EVAL]; unsigned num_tcs_input_cp = info->vertices_per_patch; unsigned num_tcs_output_cp, num_tcs_inputs, num_tcs_outputs; unsigned num_tcs_patch_outputs; unsigned input_vertex_size, output_vertex_size, pervertex_output_patch_size; unsigned input_patch_size, output_patch_size, output_patch0_offset; unsigned perpatch_output_offset, lds_size, ls_rsrc2; unsigned tcs_in_layout, tcs_out_layout, tcs_out_offsets; unsigned offchip_layout, hardware_lds_size; /* This calculates how shader inputs and outputs among VS, TCS, and TES * are laid out in LDS. */ num_tcs_inputs = util_last_bit64(ls->cso->outputs_written); if (sctx->tcs_shader.cso) { num_tcs_outputs = util_last_bit64(tcs->outputs_written); num_tcs_output_cp = tcs->info.properties[TGSI_PROPERTY_TCS_VERTICES_OUT]; num_tcs_patch_outputs = util_last_bit64(tcs->patch_outputs_written); } else { /* No TCS. Route varyings from LS to TES. */ num_tcs_outputs = num_tcs_inputs; num_tcs_output_cp = num_tcs_input_cp; num_tcs_patch_outputs = 2; /* TESSINNER + TESSOUTER */ } input_vertex_size = num_tcs_inputs * 16; output_vertex_size = num_tcs_outputs * 16; input_patch_size = num_tcs_input_cp * input_vertex_size; pervertex_output_patch_size = num_tcs_output_cp * output_vertex_size; output_patch_size = pervertex_output_patch_size + num_tcs_patch_outputs * 16; /* Ensure that we only need one wave per SIMD so we don't need to check * resource usage. Also ensures that the number of tcs in and out * vertices per threadgroup are at most 256. */ *num_patches = 64 / MAX2(num_tcs_input_cp, num_tcs_output_cp) * 4; /* Make sure that the data fits in LDS. This assumes the shaders only * use LDS for the inputs and outputs. */ hardware_lds_size = sctx->b.chip_class >= CIK ? 65536 : 32768; *num_patches = MIN2(*num_patches, hardware_lds_size / (input_patch_size + output_patch_size)); /* Make sure the output data fits in the offchip buffer */ *num_patches = MIN2(*num_patches, (sctx->screen->tess_offchip_block_dw_size * 4) / output_patch_size); /* Not necessary for correctness, but improves performance. The * specific value is taken from the proprietary driver. */ *num_patches = MIN2(*num_patches, 40); output_patch0_offset = input_patch_size * *num_patches; perpatch_output_offset = output_patch0_offset + pervertex_output_patch_size; lds_size = output_patch0_offset + output_patch_size * *num_patches; ls_rsrc2 = ls->current->config.rsrc2; if (sctx->b.chip_class >= CIK) { assert(lds_size <= 65536); ls_rsrc2 |= S_00B52C_LDS_SIZE(align(lds_size, 512) / 512); } else { assert(lds_size <= 32768); ls_rsrc2 |= S_00B52C_LDS_SIZE(align(lds_size, 256) / 256); } if (sctx->last_ls == ls->current && sctx->last_tcs == tcs && sctx->last_tes_sh_base == tes_sh_base && sctx->last_num_tcs_input_cp == num_tcs_input_cp) return; sctx->last_ls = ls->current; sctx->last_tcs = tcs; sctx->last_tes_sh_base = tes_sh_base; sctx->last_num_tcs_input_cp = num_tcs_input_cp; /* Due to a hw bug, RSRC2_LS must be written twice with another * LS register written in between. */ if (sctx->b.chip_class == CIK && sctx->b.family != CHIP_HAWAII) radeon_set_sh_reg(cs, R_00B52C_SPI_SHADER_PGM_RSRC2_LS, ls_rsrc2); radeon_set_sh_reg_seq(cs, R_00B528_SPI_SHADER_PGM_RSRC1_LS, 2); radeon_emit(cs, ls->current->config.rsrc1); radeon_emit(cs, ls_rsrc2); /* Compute userdata SGPRs. */ assert(((input_vertex_size / 4) & ~0xff) == 0); assert(((output_vertex_size / 4) & ~0xff) == 0); assert(((input_patch_size / 4) & ~0x1fff) == 0); assert(((output_patch_size / 4) & ~0x1fff) == 0); assert(((output_patch0_offset / 16) & ~0xffff) == 0); assert(((perpatch_output_offset / 16) & ~0xffff) == 0); assert(num_tcs_input_cp <= 32); assert(num_tcs_output_cp <= 32); tcs_in_layout = (input_patch_size / 4) | ((input_vertex_size / 4) << 13); tcs_out_layout = (output_patch_size / 4) | ((output_vertex_size / 4) << 13); tcs_out_offsets = (output_patch0_offset / 16) | ((perpatch_output_offset / 16) << 16); offchip_layout = (pervertex_output_patch_size * *num_patches << 16) | (num_tcs_output_cp << 9) | *num_patches; /* Set them for LS. */ radeon_set_sh_reg(cs, R_00B530_SPI_SHADER_USER_DATA_LS_0 + SI_SGPR_LS_OUT_LAYOUT * 4, tcs_in_layout); /* Set them for TCS. */ radeon_set_sh_reg_seq(cs, R_00B430_SPI_SHADER_USER_DATA_HS_0 + SI_SGPR_TCS_OFFCHIP_LAYOUT * 4, 4); radeon_emit(cs, offchip_layout); radeon_emit(cs, tcs_out_offsets); radeon_emit(cs, tcs_out_layout | (num_tcs_input_cp << 26)); radeon_emit(cs, tcs_in_layout); /* Set them for TES. */ radeon_set_sh_reg_seq(cs, tes_sh_base + SI_SGPR_TCS_OFFCHIP_LAYOUT * 4, 1); radeon_emit(cs, offchip_layout); } static unsigned si_num_prims_for_vertices(const struct pipe_draw_info *info) { switch (info->mode) { case PIPE_PRIM_PATCHES: return info->count / info->vertices_per_patch; case R600_PRIM_RECTANGLE_LIST: return info->count / 3; default: return u_prims_for_vertices(info->mode, info->count); } } static unsigned si_get_ia_multi_vgt_param(struct si_context *sctx, const struct pipe_draw_info *info, unsigned num_patches) { struct si_state_rasterizer *rs = sctx->queued.named.rasterizer; unsigned prim = info->mode; unsigned primgroup_size = 128; /* recommended without a GS */ unsigned max_primgroup_in_wave = 2; /* SWITCH_ON_EOP(0) is always preferable. */ bool wd_switch_on_eop = false; bool ia_switch_on_eop = false; bool ia_switch_on_eoi = false; bool partial_vs_wave = false; bool partial_es_wave = false; if (sctx->gs_shader.cso) primgroup_size = 64; /* recommended with a GS */ if (sctx->tes_shader.cso) { /* primgroup_size must be set to a multiple of NUM_PATCHES */ primgroup_size = num_patches; /* SWITCH_ON_EOI must be set if PrimID is used. */ if ((sctx->tcs_shader.cso && sctx->tcs_shader.cso->info.uses_primid) || sctx->tes_shader.cso->info.uses_primid) ia_switch_on_eoi = true; /* Bug with tessellation and GS on Bonaire and older 2 SE chips. */ if ((sctx->b.family == CHIP_TAHITI || sctx->b.family == CHIP_PITCAIRN || sctx->b.family == CHIP_BONAIRE) && sctx->gs_shader.cso) partial_vs_wave = true; /* Needed for 028B6C_DISTRIBUTION_MODE != 0 */ if (sctx->screen->has_distributed_tess) { if (sctx->gs_shader.cso) partial_es_wave = true; else partial_vs_wave = true; } } /* This is a hardware requirement. */ if ((rs && rs->line_stipple_enable) || (sctx->b.screen->debug_flags & DBG_SWITCH_ON_EOP)) { ia_switch_on_eop = true; wd_switch_on_eop = true; } if (sctx->b.chip_class >= CIK) { /* WD_SWITCH_ON_EOP has no effect on GPUs with less than * 4 shader engines. Set 1 to pass the assertion below. * The other cases are hardware requirements. * * Polaris supports primitive restart with WD_SWITCH_ON_EOP=0 * for points, line strips, and tri strips. */ if (sctx->b.screen->info.max_se < 4 || prim == PIPE_PRIM_POLYGON || prim == PIPE_PRIM_LINE_LOOP || prim == PIPE_PRIM_TRIANGLE_FAN || prim == PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY || (info->primitive_restart && (sctx->b.family < CHIP_POLARIS10 || (prim != PIPE_PRIM_POINTS && prim != PIPE_PRIM_LINE_STRIP && prim != PIPE_PRIM_TRIANGLE_STRIP))) || info->count_from_stream_output) wd_switch_on_eop = true; /* Hawaii hangs if instancing is enabled and WD_SWITCH_ON_EOP is 0. * We don't know that for indirect drawing, so treat it as * always problematic. */ if (sctx->b.family == CHIP_HAWAII && (info->indirect || info->instance_count > 1)) wd_switch_on_eop = true; /* Performance recommendation for 4 SE Gfx7-8 parts if * instances are smaller than a primgroup. * Assume indirect draws always use small instances. * This is needed for good VS wave utilization. */ if (sctx->b.chip_class <= VI && sctx->b.screen->info.max_se >= 4 && (info->indirect || (info->instance_count > 1 && si_num_prims_for_vertices(info) < primgroup_size))) wd_switch_on_eop = true; /* Required on CIK and later. */ if (sctx->b.screen->info.max_se > 2 && !wd_switch_on_eop) ia_switch_on_eoi = true; /* Required by Hawaii and, for some special cases, by VI. */ if (ia_switch_on_eoi && (sctx->b.family == CHIP_HAWAII || (sctx->b.chip_class == VI && (sctx->gs_shader.cso || max_primgroup_in_wave != 2)))) partial_vs_wave = true; /* Instancing bug on Bonaire. */ if (sctx->b.family == CHIP_BONAIRE && ia_switch_on_eoi && (info->indirect || info->instance_count > 1)) partial_vs_wave = true; /* GS hw bug with single-primitive instances and SWITCH_ON_EOI. * The hw doc says all multi-SE chips are affected, but Vulkan * only applies it to Hawaii. Do what Vulkan does. */ if (sctx->b.family == CHIP_HAWAII && sctx->gs_shader.cso && ia_switch_on_eoi && (info->indirect || (info->instance_count > 1 && si_num_prims_for_vertices(info) <= 1))) sctx->b.flags |= SI_CONTEXT_VGT_FLUSH; /* If the WD switch is false, the IA switch must be false too. */ assert(wd_switch_on_eop || !ia_switch_on_eop); } /* If SWITCH_ON_EOI is set, PARTIAL_ES_WAVE must be set too. */ if (ia_switch_on_eoi) partial_es_wave = true; /* GS requirement. */ if (SI_GS_PER_ES / primgroup_size >= sctx->screen->gs_table_depth - 3) partial_es_wave = true; return S_028AA8_SWITCH_ON_EOP(ia_switch_on_eop) | S_028AA8_SWITCH_ON_EOI(ia_switch_on_eoi) | S_028AA8_PARTIAL_VS_WAVE_ON(partial_vs_wave) | S_028AA8_PARTIAL_ES_WAVE_ON(partial_es_wave) | S_028AA8_PRIMGROUP_SIZE(primgroup_size - 1) | S_028AA8_WD_SWITCH_ON_EOP(sctx->b.chip_class >= CIK ? wd_switch_on_eop : 0) | S_028AA8_MAX_PRIMGRP_IN_WAVE(sctx->b.chip_class >= VI ? max_primgroup_in_wave : 0); } static unsigned si_get_ls_hs_config(struct si_context *sctx, const struct pipe_draw_info *info, unsigned num_patches) { unsigned num_output_cp; if (!sctx->tes_shader.cso) return 0; num_output_cp = sctx->tcs_shader.cso ? sctx->tcs_shader.cso->info.properties[TGSI_PROPERTY_TCS_VERTICES_OUT] : info->vertices_per_patch; return S_028B58_NUM_PATCHES(num_patches) | S_028B58_HS_NUM_INPUT_CP(info->vertices_per_patch) | S_028B58_HS_NUM_OUTPUT_CP(num_output_cp); } static void si_emit_scratch_reloc(struct si_context *sctx) { struct radeon_winsys_cs *cs = sctx->b.gfx.cs; if (!sctx->emit_scratch_reloc) return; radeon_set_context_reg(cs, R_0286E8_SPI_TMPRING_SIZE, sctx->spi_tmpring_size); if (sctx->scratch_buffer) { radeon_add_to_buffer_list(&sctx->b, &sctx->b.gfx, sctx->scratch_buffer, RADEON_USAGE_READWRITE, RADEON_PRIO_SCRATCH_BUFFER); } sctx->emit_scratch_reloc = false; } /* rast_prim is the primitive type after GS. */ static void si_emit_rasterizer_prim_state(struct si_context *sctx) { struct radeon_winsys_cs *cs = sctx->b.gfx.cs; unsigned rast_prim = sctx->current_rast_prim; struct si_state_rasterizer *rs = sctx->emitted.named.rasterizer; /* Skip this if not rendering lines. */ if (rast_prim != PIPE_PRIM_LINES && rast_prim != PIPE_PRIM_LINE_LOOP && rast_prim != PIPE_PRIM_LINE_STRIP && rast_prim != PIPE_PRIM_LINES_ADJACENCY && rast_prim != PIPE_PRIM_LINE_STRIP_ADJACENCY) return; if (rast_prim == sctx->last_rast_prim && rs->pa_sc_line_stipple == sctx->last_sc_line_stipple) return; /* For lines, reset the stipple pattern at each primitive. Otherwise, * reset the stipple pattern at each packet (line strips, line loops). */ radeon_set_context_reg(cs, R_028A0C_PA_SC_LINE_STIPPLE, rs->pa_sc_line_stipple | S_028A0C_AUTO_RESET_CNTL(rast_prim == PIPE_PRIM_LINES ? 1 : 2)); sctx->last_rast_prim = rast_prim; sctx->last_sc_line_stipple = rs->pa_sc_line_stipple; } static void si_emit_draw_registers(struct si_context *sctx, const struct pipe_draw_info *info) { struct radeon_winsys_cs *cs = sctx->b.gfx.cs; unsigned prim = si_conv_pipe_prim(info->mode); unsigned gs_out_prim = si_conv_prim_to_gs_out(sctx->current_rast_prim); unsigned ia_multi_vgt_param, ls_hs_config, num_patches = 0; /* Polaris needs different VTX_REUSE_DEPTH settings depending on * whether the "fractional odd" tessellation spacing is used. */ if (sctx->b.family >= CHIP_POLARIS10) { struct si_shader_selector *tes = sctx->tes_shader.cso; unsigned vtx_reuse_depth = 30; if (tes && tes->info.properties[TGSI_PROPERTY_TES_SPACING] == PIPE_TESS_SPACING_FRACTIONAL_ODD) vtx_reuse_depth = 14; if (vtx_reuse_depth != sctx->last_vtx_reuse_depth) { radeon_set_context_reg(cs, R_028C58_VGT_VERTEX_REUSE_BLOCK_CNTL, vtx_reuse_depth); sctx->last_vtx_reuse_depth = vtx_reuse_depth; } } if (sctx->tes_shader.cso) si_emit_derived_tess_state(sctx, info, &num_patches); ia_multi_vgt_param = si_get_ia_multi_vgt_param(sctx, info, num_patches); ls_hs_config = si_get_ls_hs_config(sctx, info, num_patches); /* Draw state. */ if (prim != sctx->last_prim || ia_multi_vgt_param != sctx->last_multi_vgt_param || ls_hs_config != sctx->last_ls_hs_config) { if (sctx->b.chip_class >= CIK) { radeon_set_context_reg_idx(cs, R_028AA8_IA_MULTI_VGT_PARAM, 1, ia_multi_vgt_param); radeon_set_context_reg_idx(cs, R_028B58_VGT_LS_HS_CONFIG, 2, ls_hs_config); radeon_set_uconfig_reg_idx(cs, R_030908_VGT_PRIMITIVE_TYPE, 1, prim); } else { radeon_set_config_reg(cs, R_008958_VGT_PRIMITIVE_TYPE, prim); radeon_set_context_reg(cs, R_028AA8_IA_MULTI_VGT_PARAM, ia_multi_vgt_param); radeon_set_context_reg(cs, R_028B58_VGT_LS_HS_CONFIG, ls_hs_config); } sctx->last_prim = prim; sctx->last_multi_vgt_param = ia_multi_vgt_param; sctx->last_ls_hs_config = ls_hs_config; } if (gs_out_prim != sctx->last_gs_out_prim) { radeon_set_context_reg(cs, R_028A6C_VGT_GS_OUT_PRIM_TYPE, gs_out_prim); sctx->last_gs_out_prim = gs_out_prim; } /* Primitive restart. */ if (info->primitive_restart != sctx->last_primitive_restart_en) { radeon_set_context_reg(cs, R_028A94_VGT_MULTI_PRIM_IB_RESET_EN, info->primitive_restart); sctx->last_primitive_restart_en = info->primitive_restart; } if (info->primitive_restart && (info->restart_index != sctx->last_restart_index || sctx->last_restart_index == SI_RESTART_INDEX_UNKNOWN)) { radeon_set_context_reg(cs, R_02840C_VGT_MULTI_PRIM_IB_RESET_INDX, info->restart_index); sctx->last_restart_index = info->restart_index; } } static void si_emit_draw_packets(struct si_context *sctx, const struct pipe_draw_info *info, const struct pipe_index_buffer *ib) { struct radeon_winsys_cs *cs = sctx->b.gfx.cs; unsigned sh_base_reg = sctx->shader_userdata.sh_base[PIPE_SHADER_VERTEX]; bool render_cond_bit = sctx->b.render_cond && !sctx->b.render_cond_force_off; uint32_t index_max_size = 0; uint64_t index_va = 0; if (info->count_from_stream_output) { struct r600_so_target *t = (struct r600_so_target*)info->count_from_stream_output; uint64_t va = t->buf_filled_size->gpu_address + t->buf_filled_size_offset; radeon_set_context_reg(cs, R_028B30_VGT_STRMOUT_DRAW_OPAQUE_VERTEX_STRIDE, t->stride_in_dw); radeon_emit(cs, PKT3(PKT3_COPY_DATA, 4, 0)); radeon_emit(cs, COPY_DATA_SRC_SEL(COPY_DATA_MEM) | COPY_DATA_DST_SEL(COPY_DATA_REG) | COPY_DATA_WR_CONFIRM); radeon_emit(cs, va); /* src address lo */ radeon_emit(cs, va >> 32); /* src address hi */ radeon_emit(cs, R_028B2C_VGT_STRMOUT_DRAW_OPAQUE_BUFFER_FILLED_SIZE >> 2); radeon_emit(cs, 0); /* unused */ radeon_add_to_buffer_list(&sctx->b, &sctx->b.gfx, t->buf_filled_size, RADEON_USAGE_READ, RADEON_PRIO_SO_FILLED_SIZE); } /* draw packet */ if (info->indexed) { if (ib->index_size != sctx->last_index_size) { radeon_emit(cs, PKT3(PKT3_INDEX_TYPE, 0, 0)); /* index type */ switch (ib->index_size) { case 1: radeon_emit(cs, V_028A7C_VGT_INDEX_8); break; case 2: radeon_emit(cs, V_028A7C_VGT_INDEX_16 | (SI_BIG_ENDIAN && sctx->b.chip_class <= CIK ? V_028A7C_VGT_DMA_SWAP_16_BIT : 0)); break; case 4: radeon_emit(cs, V_028A7C_VGT_INDEX_32 | (SI_BIG_ENDIAN && sctx->b.chip_class <= CIK ? V_028A7C_VGT_DMA_SWAP_32_BIT : 0)); break; default: assert(!"unreachable"); return; } sctx->last_index_size = ib->index_size; } index_max_size = (ib->buffer->width0 - ib->offset) / ib->index_size; index_va = r600_resource(ib->buffer)->gpu_address + ib->offset; radeon_add_to_buffer_list(&sctx->b, &sctx->b.gfx, (struct r600_resource *)ib->buffer, RADEON_USAGE_READ, RADEON_PRIO_INDEX_BUFFER); } else { /* On CI and later, non-indexed draws overwrite VGT_INDEX_TYPE, * so the state must be re-emitted before the next indexed draw. */ if (sctx->b.chip_class >= CIK) sctx->last_index_size = -1; } if (!info->indirect) { int base_vertex; radeon_emit(cs, PKT3(PKT3_NUM_INSTANCES, 0, 0)); radeon_emit(cs, info->instance_count); /* Base vertex and start instance. */ base_vertex = info->indexed ? info->index_bias : info->start; if (base_vertex != sctx->last_base_vertex || sctx->last_base_vertex == SI_BASE_VERTEX_UNKNOWN || info->start_instance != sctx->last_start_instance || info->drawid != sctx->last_drawid || sh_base_reg != sctx->last_sh_base_reg) { radeon_set_sh_reg_seq(cs, sh_base_reg + SI_SGPR_BASE_VERTEX * 4, 3); radeon_emit(cs, base_vertex); radeon_emit(cs, info->start_instance); radeon_emit(cs, info->drawid); sctx->last_base_vertex = base_vertex; sctx->last_start_instance = info->start_instance; sctx->last_drawid = info->drawid; sctx->last_sh_base_reg = sh_base_reg; } } else { uint64_t indirect_va = r600_resource(info->indirect)->gpu_address; assert(indirect_va % 8 == 0); si_invalidate_draw_sh_constants(sctx); radeon_emit(cs, PKT3(PKT3_SET_BASE, 2, 0)); radeon_emit(cs, 1); radeon_emit(cs, indirect_va); radeon_emit(cs, indirect_va >> 32); radeon_add_to_buffer_list(&sctx->b, &sctx->b.gfx, (struct r600_resource *)info->indirect, RADEON_USAGE_READ, RADEON_PRIO_DRAW_INDIRECT); } if (info->indirect) { unsigned di_src_sel = info->indexed ? V_0287F0_DI_SRC_SEL_DMA : V_0287F0_DI_SRC_SEL_AUTO_INDEX; assert(info->indirect_offset % 4 == 0); if (info->indexed) { radeon_emit(cs, PKT3(PKT3_INDEX_BASE, 1, 0)); radeon_emit(cs, index_va); radeon_emit(cs, index_va >> 32); radeon_emit(cs, PKT3(PKT3_INDEX_BUFFER_SIZE, 0, 0)); radeon_emit(cs, index_max_size); } if (!sctx->screen->has_draw_indirect_multi) { radeon_emit(cs, PKT3(info->indexed ? PKT3_DRAW_INDEX_INDIRECT : PKT3_DRAW_INDIRECT, 3, render_cond_bit)); radeon_emit(cs, info->indirect_offset); radeon_emit(cs, (sh_base_reg + SI_SGPR_BASE_VERTEX * 4 - SI_SH_REG_OFFSET) >> 2); radeon_emit(cs, (sh_base_reg + SI_SGPR_START_INSTANCE * 4 - SI_SH_REG_OFFSET) >> 2); radeon_emit(cs, di_src_sel); } else { uint64_t count_va = 0; if (info->indirect_params) { struct r600_resource *params_buf = (struct r600_resource *)info->indirect_params; radeon_add_to_buffer_list( &sctx->b, &sctx->b.gfx, params_buf, RADEON_USAGE_READ, RADEON_PRIO_DRAW_INDIRECT); count_va = params_buf->gpu_address + info->indirect_params_offset; } radeon_emit(cs, PKT3(info->indexed ? PKT3_DRAW_INDEX_INDIRECT_MULTI : PKT3_DRAW_INDIRECT_MULTI, 8, render_cond_bit)); radeon_emit(cs, info->indirect_offset); radeon_emit(cs, (sh_base_reg + SI_SGPR_BASE_VERTEX * 4 - SI_SH_REG_OFFSET) >> 2); radeon_emit(cs, (sh_base_reg + SI_SGPR_START_INSTANCE * 4 - SI_SH_REG_OFFSET) >> 2); radeon_emit(cs, ((sh_base_reg + SI_SGPR_DRAWID * 4 - SI_SH_REG_OFFSET) >> 2) | S_2C3_DRAW_INDEX_ENABLE(1) | S_2C3_COUNT_INDIRECT_ENABLE(!!info->indirect_params)); radeon_emit(cs, info->indirect_count); radeon_emit(cs, count_va); radeon_emit(cs, count_va >> 32); radeon_emit(cs, info->indirect_stride); radeon_emit(cs, di_src_sel); } } else { if (info->indexed) { index_va += info->start * ib->index_size; radeon_emit(cs, PKT3(PKT3_DRAW_INDEX_2, 4, render_cond_bit)); radeon_emit(cs, index_max_size); radeon_emit(cs, index_va); radeon_emit(cs, (index_va >> 32UL) & 0xFF); radeon_emit(cs, info->count); radeon_emit(cs, V_0287F0_DI_SRC_SEL_DMA); } else { radeon_emit(cs, PKT3(PKT3_DRAW_INDEX_AUTO, 1, render_cond_bit)); radeon_emit(cs, info->count); radeon_emit(cs, V_0287F0_DI_SRC_SEL_AUTO_INDEX | S_0287F0_USE_OPAQUE(!!info->count_from_stream_output)); } } } void si_emit_cache_flush(struct si_context *sctx) { struct r600_common_context *rctx = &sctx->b; struct radeon_winsys_cs *cs = rctx->gfx.cs; uint32_t cp_coher_cntl = 0; /* SI has a bug that it always flushes ICACHE and KCACHE if either * bit is set. An alternative way is to write SQC_CACHES, but that * doesn't seem to work reliably. Since the bug doesn't affect * correctness (it only does more work than necessary) and * the performance impact is likely negligible, there is no plan * to add a workaround for it. */ if (rctx->flags & SI_CONTEXT_INV_ICACHE) cp_coher_cntl |= S_0085F0_SH_ICACHE_ACTION_ENA(1); if (rctx->flags & SI_CONTEXT_INV_SMEM_L1) cp_coher_cntl |= S_0085F0_SH_KCACHE_ACTION_ENA(1); if (rctx->flags & SI_CONTEXT_INV_VMEM_L1) cp_coher_cntl |= S_0085F0_TCL1_ACTION_ENA(1); if (rctx->flags & SI_CONTEXT_INV_GLOBAL_L2) { cp_coher_cntl |= S_0085F0_TC_ACTION_ENA(1); if (rctx->chip_class >= VI) cp_coher_cntl |= S_0301F0_TC_WB_ACTION_ENA(1); } if (rctx->flags & SI_CONTEXT_FLUSH_AND_INV_CB) { cp_coher_cntl |= S_0085F0_CB_ACTION_ENA(1) | S_0085F0_CB0_DEST_BASE_ENA(1) | S_0085F0_CB1_DEST_BASE_ENA(1) | S_0085F0_CB2_DEST_BASE_ENA(1) | S_0085F0_CB3_DEST_BASE_ENA(1) | S_0085F0_CB4_DEST_BASE_ENA(1) | S_0085F0_CB5_DEST_BASE_ENA(1) | S_0085F0_CB6_DEST_BASE_ENA(1) | S_0085F0_CB7_DEST_BASE_ENA(1); /* Necessary for DCC */ if (rctx->chip_class >= VI) { radeon_emit(cs, PKT3(PKT3_EVENT_WRITE_EOP, 4, 0)); radeon_emit(cs, EVENT_TYPE(V_028A90_FLUSH_AND_INV_CB_DATA_TS) | EVENT_INDEX(5)); radeon_emit(cs, 0); radeon_emit(cs, 0); radeon_emit(cs, 0); radeon_emit(cs, 0); } } if (rctx->flags & SI_CONTEXT_FLUSH_AND_INV_DB) { cp_coher_cntl |= S_0085F0_DB_ACTION_ENA(1) | S_0085F0_DB_DEST_BASE_ENA(1); } if (rctx->flags & SI_CONTEXT_FLUSH_AND_INV_CB_META) { radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0)); radeon_emit(cs, EVENT_TYPE(V_028A90_FLUSH_AND_INV_CB_META) | EVENT_INDEX(0)); /* needed for wait for idle in SURFACE_SYNC */ assert(rctx->flags & SI_CONTEXT_FLUSH_AND_INV_CB); } if (rctx->flags & SI_CONTEXT_FLUSH_AND_INV_DB_META) { radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0)); radeon_emit(cs, EVENT_TYPE(V_028A90_FLUSH_AND_INV_DB_META) | EVENT_INDEX(0)); /* needed for wait for idle in SURFACE_SYNC */ assert(rctx->flags & SI_CONTEXT_FLUSH_AND_INV_DB); } /* Wait for shader engines to go idle. * VS and PS waits are unnecessary if SURFACE_SYNC is going to wait * for everything including CB/DB cache flushes. */ if (!(rctx->flags & (SI_CONTEXT_FLUSH_AND_INV_CB | SI_CONTEXT_FLUSH_AND_INV_DB))) { if (rctx->flags & SI_CONTEXT_PS_PARTIAL_FLUSH) { radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0)); radeon_emit(cs, EVENT_TYPE(V_028A90_PS_PARTIAL_FLUSH) | EVENT_INDEX(4)); /* Only count explicit shader flushes, not implicit ones * done by SURFACE_SYNC. */ rctx->num_vs_flushes++; rctx->num_ps_flushes++; } else if (rctx->flags & SI_CONTEXT_VS_PARTIAL_FLUSH) { radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0)); radeon_emit(cs, EVENT_TYPE(V_028A90_VS_PARTIAL_FLUSH) | EVENT_INDEX(4)); rctx->num_vs_flushes++; } } if (rctx->flags & SI_CONTEXT_CS_PARTIAL_FLUSH && sctx->compute_is_busy) { radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0)); radeon_emit(cs, EVENT_TYPE(V_028A90_CS_PARTIAL_FLUSH | EVENT_INDEX(4))); rctx->num_cs_flushes++; sctx->compute_is_busy = false; } /* VGT state synchronization. */ if (rctx->flags & SI_CONTEXT_VGT_FLUSH) { radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0)); radeon_emit(cs, EVENT_TYPE(V_028A90_VGT_FLUSH) | EVENT_INDEX(0)); } if (rctx->flags & SI_CONTEXT_VGT_STREAMOUT_SYNC) { radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0)); radeon_emit(cs, EVENT_TYPE(V_028A90_VGT_STREAMOUT_SYNC) | EVENT_INDEX(0)); } /* Make sure ME is idle (it executes most packets) before continuing. * This prevents read-after-write hazards between PFP and ME. */ if (cp_coher_cntl || (rctx->flags & SI_CONTEXT_CS_PARTIAL_FLUSH)) { radeon_emit(cs, PKT3(PKT3_PFP_SYNC_ME, 0, 0)); radeon_emit(cs, 0); } /* When one of the DEST_BASE flags is set, SURFACE_SYNC waits for idle. * Therefore, it should be last. Done in PFP. */ if (cp_coher_cntl) { /* ACQUIRE_MEM is only required on a compute ring. */ radeon_emit(cs, PKT3(PKT3_SURFACE_SYNC, 3, 0)); radeon_emit(cs, cp_coher_cntl); /* CP_COHER_CNTL */ radeon_emit(cs, 0xffffffff); /* CP_COHER_SIZE */ radeon_emit(cs, 0); /* CP_COHER_BASE */ radeon_emit(cs, 0x0000000A); /* POLL_INTERVAL */ } if (rctx->flags & R600_CONTEXT_START_PIPELINE_STATS) { radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0)); radeon_emit(cs, EVENT_TYPE(V_028A90_PIPELINESTAT_START) | EVENT_INDEX(0)); } else if (rctx->flags & R600_CONTEXT_STOP_PIPELINE_STATS) { radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0)); radeon_emit(cs, EVENT_TYPE(V_028A90_PIPELINESTAT_STOP) | EVENT_INDEX(0)); } rctx->flags = 0; } static void si_get_draw_start_count(struct si_context *sctx, const struct pipe_draw_info *info, unsigned *start, unsigned *count) { if (info->indirect) { struct r600_resource *indirect = (struct r600_resource*)info->indirect; int *data = r600_buffer_map_sync_with_rings(&sctx->b, indirect, PIPE_TRANSFER_READ); data += info->indirect_offset/sizeof(int); *start = data[2]; *count = data[0]; } else { *start = info->start; *count = info->count; } } void si_ce_pre_draw_synchronization(struct si_context *sctx) { if (sctx->ce_need_synchronization) { radeon_emit(sctx->ce_ib, PKT3(PKT3_INCREMENT_CE_COUNTER, 0, 0)); radeon_emit(sctx->ce_ib, 1); radeon_emit(sctx->b.gfx.cs, PKT3(PKT3_WAIT_ON_CE_COUNTER, 0, 0)); radeon_emit(sctx->b.gfx.cs, 1); } } void si_ce_post_draw_synchronization(struct si_context *sctx) { if (sctx->ce_need_synchronization) { radeon_emit(sctx->b.gfx.cs, PKT3(PKT3_INCREMENT_DE_COUNTER, 0, 0)); radeon_emit(sctx->b.gfx.cs, 0); sctx->ce_need_synchronization = false; } } void si_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *info) { struct si_context *sctx = (struct si_context *)ctx; struct si_state_rasterizer *rs = sctx->queued.named.rasterizer; struct pipe_index_buffer ib = {}; unsigned mask, dirty_fb_counter, dirty_tex_counter, rast_prim; if (likely(!info->indirect)) { /* SI-CI treat instance_count==0 as instance_count==1. There is * no workaround for indirect draws, but we can at least skip * direct draws. */ if (unlikely(!info->instance_count)) return; /* Handle count == 0. */ if (unlikely(!info->count && (info->indexed || !info->count_from_stream_output))) return; } if (unlikely(!sctx->vs_shader.cso)) { assert(0); return; } if (unlikely(!sctx->ps_shader.cso && (!rs || !rs->rasterizer_discard))) { assert(0); return; } if (unlikely(!!sctx->tes_shader.cso != (info->mode == PIPE_PRIM_PATCHES))) { assert(0); return; } /* Re-emit the framebuffer state if needed. */ dirty_fb_counter = p_atomic_read(&sctx->b.screen->dirty_fb_counter); if (unlikely(dirty_fb_counter != sctx->b.last_dirty_fb_counter)) { sctx->b.last_dirty_fb_counter = dirty_fb_counter; sctx->framebuffer.dirty_cbufs |= ((1 << sctx->framebuffer.state.nr_cbufs) - 1); sctx->framebuffer.dirty_zsbuf = true; si_mark_atom_dirty(sctx, &sctx->framebuffer.atom); } /* Invalidate & recompute texture descriptors if needed. */ dirty_tex_counter = p_atomic_read(&sctx->b.screen->dirty_tex_descriptor_counter); if (unlikely(dirty_tex_counter != sctx->b.last_dirty_tex_descriptor_counter)) { sctx->b.last_dirty_tex_descriptor_counter = dirty_tex_counter; si_update_all_texture_descriptors(sctx); } si_decompress_graphics_textures(sctx); /* Set the rasterization primitive type. * * This must be done after si_decompress_textures, which can call * draw_vbo recursively, and before si_update_shaders, which uses * current_rast_prim for this draw_vbo call. */ if (sctx->gs_shader.cso) rast_prim = sctx->gs_shader.cso->gs_output_prim; else if (sctx->tes_shader.cso) rast_prim = sctx->tes_shader.cso->info.properties[TGSI_PROPERTY_TES_PRIM_MODE]; else rast_prim = info->mode; if (rast_prim != sctx->current_rast_prim) { sctx->current_rast_prim = rast_prim; sctx->do_update_shaders = true; } if (sctx->do_update_shaders && !si_update_shaders(sctx)) return; if (!si_upload_graphics_shader_descriptors(sctx)) return; if (info->indexed) { /* Initialize the index buffer struct. */ pipe_resource_reference(&ib.buffer, sctx->index_buffer.buffer); ib.user_buffer = sctx->index_buffer.user_buffer; ib.index_size = sctx->index_buffer.index_size; ib.offset = sctx->index_buffer.offset; /* Translate or upload, if needed. */ /* 8-bit indices are supported on VI. */ if (sctx->b.chip_class <= CIK && ib.index_size == 1) { struct pipe_resource *out_buffer = NULL; unsigned out_offset, start, count, start_offset; void *ptr; si_get_draw_start_count(sctx, info, &start, &count); start_offset = start * ib.index_size; u_upload_alloc(sctx->b.uploader, start_offset, count * 2, 256, &out_offset, &out_buffer, &ptr); if (!out_buffer) { pipe_resource_reference(&ib.buffer, NULL); return; } util_shorten_ubyte_elts_to_userptr(&sctx->b.b, &ib, 0, ib.offset + start_offset, count, ptr); pipe_resource_reference(&ib.buffer, NULL); ib.user_buffer = NULL; ib.buffer = out_buffer; /* info->start will be added by the drawing code */ ib.offset = out_offset - start_offset; ib.index_size = 2; } else if (ib.user_buffer && !ib.buffer) { unsigned start, count, start_offset; si_get_draw_start_count(sctx, info, &start, &count); start_offset = start * ib.index_size; u_upload_data(sctx->b.uploader, start_offset, count * ib.index_size, 256, (char*)ib.user_buffer + start_offset, &ib.offset, &ib.buffer); if (!ib.buffer) return; /* info->start will be added by the drawing code */ ib.offset -= start_offset; } } /* VI reads index buffers through TC L2. */ if (info->indexed && sctx->b.chip_class <= CIK && r600_resource(ib.buffer)->TC_L2_dirty) { sctx->b.flags |= SI_CONTEXT_INV_GLOBAL_L2; r600_resource(ib.buffer)->TC_L2_dirty = false; } if (info->indirect && r600_resource(info->indirect)->TC_L2_dirty) { sctx->b.flags |= SI_CONTEXT_INV_GLOBAL_L2; r600_resource(info->indirect)->TC_L2_dirty = false; } if (info->indirect_params && r600_resource(info->indirect_params)->TC_L2_dirty) { sctx->b.flags |= SI_CONTEXT_INV_GLOBAL_L2; r600_resource(info->indirect_params)->TC_L2_dirty = false; } /* Add buffer sizes for memory checking in need_cs_space. */ if (sctx->emit_scratch_reloc && sctx->scratch_buffer) r600_context_add_resource_size(ctx, &sctx->scratch_buffer->b.b); if (info->indirect) r600_context_add_resource_size(ctx, info->indirect); si_need_cs_space(sctx); /* Since we've called r600_context_add_resource_size for vertex buffers, * this must be called after si_need_cs_space, because we must let * need_cs_space flush before we add buffers to the buffer list. */ if (!si_upload_vertex_buffer_descriptors(sctx)) return; /* Flushed caches prior to emitting states. */ if (sctx->b.flags) si_emit_cache_flush(sctx); /* Emit states. */ mask = sctx->dirty_atoms; while (mask) { struct r600_atom *atom = sctx->atoms.array[u_bit_scan(&mask)]; atom->emit(&sctx->b, atom); } sctx->dirty_atoms = 0; si_pm4_emit_dirty(sctx); si_emit_scratch_reloc(sctx); si_emit_rasterizer_prim_state(sctx); si_emit_draw_registers(sctx, info); si_ce_pre_draw_synchronization(sctx); si_emit_draw_packets(sctx, info, &ib); si_ce_post_draw_synchronization(sctx); if (sctx->trace_buf) si_trace_emit(sctx); /* Workaround for a VGT hang when streamout is enabled. * It must be done after drawing. */ if ((sctx->b.family == CHIP_HAWAII || sctx->b.family == CHIP_TONGA || sctx->b.family == CHIP_FIJI) && r600_get_strmout_en(&sctx->b)) { sctx->b.flags |= SI_CONTEXT_VGT_STREAMOUT_SYNC; } /* Set the depth buffer as dirty. */ if (sctx->framebuffer.state.zsbuf) { struct pipe_surface *surf = sctx->framebuffer.state.zsbuf; struct r600_texture *rtex = (struct r600_texture *)surf->texture; rtex->dirty_level_mask |= 1 << surf->u.tex.level; if (rtex->surface.flags & RADEON_SURF_SBUFFER) rtex->stencil_dirty_level_mask |= 1 << surf->u.tex.level; } if (sctx->framebuffer.compressed_cb_mask) { struct pipe_surface *surf; struct r600_texture *rtex; unsigned mask = sctx->framebuffer.compressed_cb_mask; do { unsigned i = u_bit_scan(&mask); surf = sctx->framebuffer.state.cbufs[i]; rtex = (struct r600_texture*)surf->texture; if (rtex->fmask.size) rtex->dirty_level_mask |= 1 << surf->u.tex.level; if (rtex->dcc_gather_statistics) rtex->separate_dcc_dirty = true; } while (mask); } pipe_resource_reference(&ib.buffer, NULL); sctx->b.num_draw_calls++; if (G_0286E8_WAVESIZE(sctx->spi_tmpring_size)) sctx->b.num_spill_draw_calls++; } void si_trace_emit(struct si_context *sctx) { struct radeon_winsys_cs *cs = sctx->b.gfx.cs; sctx->trace_id++; radeon_add_to_buffer_list(&sctx->b, &sctx->b.gfx, sctx->trace_buf, RADEON_USAGE_READWRITE, RADEON_PRIO_TRACE); radeon_emit(cs, PKT3(PKT3_WRITE_DATA, 3, 0)); radeon_emit(cs, S_370_DST_SEL(V_370_MEMORY_SYNC) | S_370_WR_CONFIRM(1) | S_370_ENGINE_SEL(V_370_ME)); radeon_emit(cs, sctx->trace_buf->gpu_address); radeon_emit(cs, sctx->trace_buf->gpu_address >> 32); radeon_emit(cs, sctx->trace_id); radeon_emit(cs, PKT3(PKT3_NOP, 0, 0)); radeon_emit(cs, SI_ENCODE_TRACE_POINT(sctx->trace_id)); }