/* * Copyright 2012 Advanced Micro Devices, Inc. * All Rights Reserved. * * 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. */ #include "si_build_pm4.h" #include "gfx9d.h" #include "util/u_index_modify.h" #include "util/u_log.h" #include "util/u_upload_mgr.h" #include "util/u_prim.h" #include "ac_debug.h" /* special primitive types */ #define SI_PRIM_RECTANGLE_LIST PIPE_PRIM_MAX 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, [SI_PRIM_RECTANGLE_LIST] = V_008958_DI_PT_RECTLIST }; 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 bool si_emit_derived_tess_state(struct si_context *sctx, const struct pipe_draw_info *info, unsigned *num_patches) { struct radeon_cmdbuf *cs = sctx->gfx_cs; struct si_shader *ls_current; struct si_shader_selector *ls; /* 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 tess_uses_primid = sctx->ia_multi_vgt_param_key.u.tess_uses_prim_id; bool has_primid_instancing_bug = sctx->chip_class == SI && sctx->screen->info.max_se == 1; unsigned tes_sh_base = sctx->shader_pointers.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; unsigned tcs_in_layout, tcs_out_layout, tcs_out_offsets; unsigned offchip_layout, hardware_lds_size, ls_hs_config; /* Since GFX9 has merged LS-HS in the TCS state, set LS = TCS. */ if (sctx->chip_class >= GFX9) { if (sctx->tcs_shader.cso) ls_current = sctx->tcs_shader.current; else ls_current = sctx->fixed_func_tcs_shader.current; ls = ls_current->key.part.tcs.ls; } else { ls_current = sctx->vs_shader.current; ls = sctx->vs_shader.cso; } 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 && (!has_primid_instancing_bug || (sctx->last_tess_uses_primid == tess_uses_primid))) { *num_patches = sctx->last_num_patches; return false; } 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; sctx->last_tess_uses_primid = tess_uses_primid; /* This calculates how shader inputs and outputs among VS, TCS, and TES * are laid out in LDS. */ num_tcs_inputs = util_last_bit64(ls->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 = ls->lshs_vertex_stride; 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. */ unsigned max_verts_per_patch = MAX2(num_tcs_input_cp, num_tcs_output_cp); *num_patches = 256 / max_verts_per_patch; /* Make sure that the data fits in LDS. This assumes the shaders only * use LDS for the inputs and outputs. * * While CIK can use 64K per threadgroup, there is a hang on Stoney * with 2 CUs if we use more than 32K. The closed Vulkan driver also * uses 32K at most on all GCN chips. */ hardware_lds_size = 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 hardware can do more, but the radeonsi shader constant is * limited to 6 bits. */ *num_patches = MIN2(*num_patches, 63); /* triangles: 3 full waves except 3 lanes */ /* When distributed tessellation is unsupported, switch between SEs * at a higher frequency to compensate for it. */ if (!sctx->screen->has_distributed_tess && sctx->screen->info.max_se > 1) *num_patches = MIN2(*num_patches, 16); /* recommended */ /* Make sure that vector lanes are reasonably occupied. It probably * doesn't matter much because this is LS-HS, and TES is likely to * occupy significantly more CUs. */ unsigned temp_verts_per_tg = *num_patches * max_verts_per_patch; if (temp_verts_per_tg > 64 && temp_verts_per_tg % 64 < 48) *num_patches = (temp_verts_per_tg & ~63) / max_verts_per_patch; if (sctx->chip_class == SI) { /* SI bug workaround, related to power management. Limit LS-HS * threadgroups to only one wave. */ unsigned one_wave = 64 / max_verts_per_patch; *num_patches = MIN2(*num_patches, one_wave); } /* The VGT HS block increments the patch ID unconditionally * within a single threadgroup. This results in incorrect * patch IDs when instanced draws are used. * * The intended solution is to restrict threadgroups to * a single instance by setting SWITCH_ON_EOI, which * should cause IA to split instances up. However, this * doesn't work correctly on SI when there is no other * SE to switch to. */ if (has_primid_instancing_bug && tess_uses_primid) *num_patches = 1; sctx->last_num_patches = *num_patches; output_patch0_offset = input_patch_size * *num_patches; perpatch_output_offset = output_patch0_offset + pervertex_output_patch_size; /* 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); uint64_t ring_va = si_resource(sctx->tess_rings)->gpu_address; assert((ring_va & u_bit_consecutive(0, 19)) == 0); tcs_in_layout = S_VS_STATE_LS_OUT_PATCH_SIZE(input_patch_size / 4) | S_VS_STATE_LS_OUT_VERTEX_SIZE(input_vertex_size / 4); tcs_out_layout = (output_patch_size / 4) | (num_tcs_input_cp << 13) | ring_va; tcs_out_offsets = (output_patch0_offset / 16) | ((perpatch_output_offset / 16) << 16); offchip_layout = *num_patches | (num_tcs_output_cp << 6) | (pervertex_output_patch_size * *num_patches << 12); /* Compute the LDS size. */ lds_size = output_patch0_offset + output_patch_size * *num_patches; if (sctx->chip_class >= CIK) { assert(lds_size <= 65536); lds_size = align(lds_size, 512) / 512; } else { assert(lds_size <= 32768); lds_size = align(lds_size, 256) / 256; } /* Set SI_SGPR_VS_STATE_BITS. */ sctx->current_vs_state &= C_VS_STATE_LS_OUT_PATCH_SIZE & C_VS_STATE_LS_OUT_VERTEX_SIZE; sctx->current_vs_state |= tcs_in_layout; if (sctx->chip_class >= GFX9) { unsigned hs_rsrc2 = ls_current->config.rsrc2 | S_00B42C_LDS_SIZE(lds_size); radeon_set_sh_reg(cs, R_00B42C_SPI_SHADER_PGM_RSRC2_HS, hs_rsrc2); /* Set userdata SGPRs for merged LS-HS. */ radeon_set_sh_reg_seq(cs, R_00B430_SPI_SHADER_USER_DATA_LS_0 + GFX9_SGPR_TCS_OFFCHIP_LAYOUT * 4, 3); radeon_emit(cs, offchip_layout); radeon_emit(cs, tcs_out_offsets); radeon_emit(cs, tcs_out_layout); } else { unsigned ls_rsrc2 = ls_current->config.rsrc2; si_multiwave_lds_size_workaround(sctx->screen, &lds_size); ls_rsrc2 |= S_00B52C_LDS_SIZE(lds_size); /* Due to a hw bug, RSRC2_LS must be written twice with another * LS register written in between. */ if (sctx->chip_class == CIK && sctx->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); /* Set userdata SGPRs for TCS. */ radeon_set_sh_reg_seq(cs, R_00B430_SPI_SHADER_USER_DATA_HS_0 + GFX6_SGPR_TCS_OFFCHIP_LAYOUT * 4, 4); radeon_emit(cs, offchip_layout); radeon_emit(cs, tcs_out_offsets); radeon_emit(cs, tcs_out_layout); radeon_emit(cs, tcs_in_layout); } /* Set userdata SGPRs for TES. */ radeon_set_sh_reg_seq(cs, tes_sh_base + SI_SGPR_TES_OFFCHIP_LAYOUT * 4, 2); radeon_emit(cs, offchip_layout); radeon_emit(cs, ring_va); ls_hs_config = S_028B58_NUM_PATCHES(*num_patches) | S_028B58_HS_NUM_INPUT_CP(num_tcs_input_cp) | S_028B58_HS_NUM_OUTPUT_CP(num_tcs_output_cp); if (sctx->last_ls_hs_config != ls_hs_config) { if (sctx->chip_class >= CIK) { radeon_set_context_reg_idx(cs, R_028B58_VGT_LS_HS_CONFIG, 2, ls_hs_config); } else { radeon_set_context_reg(cs, R_028B58_VGT_LS_HS_CONFIG, ls_hs_config); } sctx->last_ls_hs_config = ls_hs_config; return true; /* true if the context rolls */ } return false; } 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 PIPE_PRIM_POLYGON: return info->count >= 3; case SI_PRIM_RECTANGLE_LIST: return info->count / 3; default: return u_decomposed_prims_for_vertices(info->mode, info->count); } } static unsigned si_get_init_multi_vgt_param(struct si_screen *sscreen, union si_vgt_param_key *key) { STATIC_ASSERT(sizeof(union si_vgt_param_key) == 4); 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 (key->u.uses_tess) { /* SWITCH_ON_EOI must be set if PrimID is used. */ if (key->u.tess_uses_prim_id) ia_switch_on_eoi = true; /* Bug with tessellation and GS on Bonaire and older 2 SE chips. */ if ((sscreen->info.family == CHIP_TAHITI || sscreen->info.family == CHIP_PITCAIRN || sscreen->info.family == CHIP_BONAIRE) && key->u.uses_gs) partial_vs_wave = true; /* Needed for 028B6C_DISTRIBUTION_MODE != 0. (implies >= VI) */ if (sscreen->has_distributed_tess) { if (key->u.uses_gs) { if (sscreen->info.chip_class == VI) partial_es_wave = true; } else { partial_vs_wave = true; } } } /* This is a hardware requirement. */ if (key->u.line_stipple_enabled || (sscreen->debug_flags & DBG(SWITCH_ON_EOP))) { ia_switch_on_eop = true; wd_switch_on_eop = true; } if (sscreen->info.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 (sscreen->info.max_se <= 2 || key->u.prim == PIPE_PRIM_POLYGON || key->u.prim == PIPE_PRIM_LINE_LOOP || key->u.prim == PIPE_PRIM_TRIANGLE_FAN || key->u.prim == PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY || (key->u.primitive_restart && (sscreen->info.family < CHIP_POLARIS10 || (key->u.prim != PIPE_PRIM_POINTS && key->u.prim != PIPE_PRIM_LINE_STRIP && key->u.prim != PIPE_PRIM_TRIANGLE_STRIP))) || key->u.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 (sscreen->info.family == CHIP_HAWAII && key->u.uses_instancing) 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 (sscreen->info.chip_class <= VI && sscreen->info.max_se == 4 && key->u.multi_instances_smaller_than_primgroup) wd_switch_on_eop = true; /* Required on CIK and later. */ if (sscreen->info.max_se == 4 && !wd_switch_on_eop) ia_switch_on_eoi = true; /* HW engineers suggested that PARTIAL_VS_WAVE_ON should be set * to work around a GS hang. */ if (key->u.uses_gs && (sscreen->info.family == CHIP_TONGA || sscreen->info.family == CHIP_FIJI || sscreen->info.family == CHIP_POLARIS10 || sscreen->info.family == CHIP_POLARIS11 || sscreen->info.family == CHIP_POLARIS12 || sscreen->info.family == CHIP_VEGAM)) partial_vs_wave = true; /* Required by Hawaii and, for some special cases, by VI. */ if (ia_switch_on_eoi && (sscreen->info.family == CHIP_HAWAII || (sscreen->info.chip_class == VI && (key->u.uses_gs || max_primgroup_in_wave != 2)))) partial_vs_wave = true; /* Instancing bug on Bonaire. */ if (sscreen->info.family == CHIP_BONAIRE && ia_switch_on_eoi && key->u.uses_instancing) partial_vs_wave = true; /* This only applies to Polaris10 and later 4 SE chips. * wd_switch_on_eop is already true on all other chips. */ if (!wd_switch_on_eop && key->u.primitive_restart) partial_vs_wave = true; /* 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 (sscreen->info.chip_class <= VI && ia_switch_on_eoi) 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_WD_SWITCH_ON_EOP(sscreen->info.chip_class >= CIK ? wd_switch_on_eop : 0) | /* The following field was moved to VGT_SHADER_STAGES_EN in GFX9. */ S_028AA8_MAX_PRIMGRP_IN_WAVE(sscreen->info.chip_class == VI ? max_primgroup_in_wave : 0) | S_030960_EN_INST_OPT_BASIC(sscreen->info.chip_class >= GFX9) | S_030960_EN_INST_OPT_ADV(sscreen->info.chip_class >= GFX9); } static void si_init_ia_multi_vgt_param_table(struct si_context *sctx) { for (int prim = 0; prim <= SI_PRIM_RECTANGLE_LIST; prim++) for (int uses_instancing = 0; uses_instancing < 2; uses_instancing++) for (int multi_instances = 0; multi_instances < 2; multi_instances++) for (int primitive_restart = 0; primitive_restart < 2; primitive_restart++) for (int count_from_so = 0; count_from_so < 2; count_from_so++) for (int line_stipple = 0; line_stipple < 2; line_stipple++) for (int uses_tess = 0; uses_tess < 2; uses_tess++) for (int tess_uses_primid = 0; tess_uses_primid < 2; tess_uses_primid++) for (int uses_gs = 0; uses_gs < 2; uses_gs++) { union si_vgt_param_key key; key.index = 0; key.u.prim = prim; key.u.uses_instancing = uses_instancing; key.u.multi_instances_smaller_than_primgroup = multi_instances; key.u.primitive_restart = primitive_restart; key.u.count_from_stream_output = count_from_so; key.u.line_stipple_enabled = line_stipple; key.u.uses_tess = uses_tess; key.u.tess_uses_prim_id = tess_uses_primid; key.u.uses_gs = uses_gs; sctx->ia_multi_vgt_param[key.index] = si_get_init_multi_vgt_param(sctx->screen, &key); } } static unsigned si_get_ia_multi_vgt_param(struct si_context *sctx, const struct pipe_draw_info *info, unsigned num_patches) { union si_vgt_param_key key = sctx->ia_multi_vgt_param_key; unsigned primgroup_size; unsigned ia_multi_vgt_param; if (sctx->tes_shader.cso) { primgroup_size = num_patches; /* must be a multiple of NUM_PATCHES */ } else if (sctx->gs_shader.cso) { primgroup_size = 64; /* recommended with a GS */ } else { primgroup_size = 128; /* recommended without a GS and tess */ } key.u.prim = info->mode; key.u.uses_instancing = info->indirect || info->instance_count > 1; key.u.multi_instances_smaller_than_primgroup = info->indirect || (info->instance_count > 1 && (info->count_from_stream_output || si_num_prims_for_vertices(info) < primgroup_size)); key.u.primitive_restart = info->primitive_restart; key.u.count_from_stream_output = info->count_from_stream_output != NULL; ia_multi_vgt_param = sctx->ia_multi_vgt_param[key.index] | S_028AA8_PRIMGROUP_SIZE(primgroup_size - 1); if (sctx->gs_shader.cso) { /* GS requirement. */ if (sctx->chip_class <= VI && SI_GS_PER_ES / primgroup_size >= sctx->screen->gs_table_depth - 3) ia_multi_vgt_param |= S_028AA8_PARTIAL_ES_WAVE_ON(1); /* 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->family == CHIP_HAWAII && G_028AA8_SWITCH_ON_EOI(ia_multi_vgt_param) && (info->indirect || (info->instance_count > 1 && (info->count_from_stream_output || si_num_prims_for_vertices(info) <= 1)))) sctx->flags |= SI_CONTEXT_VGT_FLUSH; } return ia_multi_vgt_param; } /* rast_prim is the primitive type after GS. */ static bool si_emit_rasterizer_prim_state(struct si_context *sctx) { struct radeon_cmdbuf *cs = sctx->gfx_cs; enum pipe_prim_type rast_prim = sctx->current_rast_prim; struct si_state_rasterizer *rs = sctx->queued.named.rasterizer; /* Skip this if not rendering lines. */ if (!util_prim_is_lines(rast_prim)) return false; if (rast_prim == sctx->last_rast_prim && rs->pa_sc_line_stipple == sctx->last_sc_line_stipple) return false; /* 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; return true; /* true if the context rolls */ } static void si_emit_vs_state(struct si_context *sctx, const struct pipe_draw_info *info) { sctx->current_vs_state &= C_VS_STATE_INDEXED; sctx->current_vs_state |= S_VS_STATE_INDEXED(!!info->index_size); if (sctx->num_vs_blit_sgprs) { /* Re-emit the state after we leave u_blitter. */ sctx->last_vs_state = ~0; return; } if (sctx->current_vs_state != sctx->last_vs_state) { struct radeon_cmdbuf *cs = sctx->gfx_cs; /* For the API vertex shader (VS_STATE_INDEXED). */ radeon_set_sh_reg(cs, sctx->shader_pointers.sh_base[PIPE_SHADER_VERTEX] + SI_SGPR_VS_STATE_BITS * 4, sctx->current_vs_state); /* For vertex color clamping, which is done in the last stage * before the rasterizer. */ if (sctx->gs_shader.cso || sctx->tes_shader.cso) { /* GS copy shader or TES if GS is missing. */ radeon_set_sh_reg(cs, R_00B130_SPI_SHADER_USER_DATA_VS_0 + SI_SGPR_VS_STATE_BITS * 4, sctx->current_vs_state); } sctx->last_vs_state = sctx->current_vs_state; } } static inline bool si_prim_restart_index_changed(struct si_context *sctx, const struct pipe_draw_info *info) { return info->primitive_restart && (info->restart_index != sctx->last_restart_index || sctx->last_restart_index == SI_RESTART_INDEX_UNKNOWN); } static void si_emit_draw_registers(struct si_context *sctx, const struct pipe_draw_info *info, unsigned num_patches) { struct radeon_cmdbuf *cs = sctx->gfx_cs; unsigned prim = si_conv_pipe_prim(info->mode); unsigned ia_multi_vgt_param; ia_multi_vgt_param = si_get_ia_multi_vgt_param(sctx, info, num_patches); /* Draw state. */ if (ia_multi_vgt_param != sctx->last_multi_vgt_param) { if (sctx->chip_class >= GFX9) radeon_set_uconfig_reg_idx(cs, sctx->screen, R_030960_IA_MULTI_VGT_PARAM, 4, ia_multi_vgt_param); else if (sctx->chip_class >= CIK) radeon_set_context_reg_idx(cs, R_028AA8_IA_MULTI_VGT_PARAM, 1, ia_multi_vgt_param); else radeon_set_context_reg(cs, R_028AA8_IA_MULTI_VGT_PARAM, ia_multi_vgt_param); sctx->last_multi_vgt_param = ia_multi_vgt_param; } if (prim != sctx->last_prim) { if (sctx->chip_class >= CIK) radeon_set_uconfig_reg_idx(cs, sctx->screen, R_030908_VGT_PRIMITIVE_TYPE, 1, prim); else radeon_set_config_reg(cs, R_008958_VGT_PRIMITIVE_TYPE, prim); sctx->last_prim = prim; } /* Primitive restart. */ if (info->primitive_restart != sctx->last_primitive_restart_en) { if (sctx->chip_class >= GFX9) radeon_set_uconfig_reg(cs, R_03092C_VGT_MULTI_PRIM_IB_RESET_EN, info->primitive_restart); else 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 (si_prim_restart_index_changed(sctx, info)) { 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, struct pipe_resource *indexbuf, unsigned index_size, unsigned index_offset) { struct pipe_draw_indirect_info *indirect = info->indirect; struct radeon_cmdbuf *cs = sctx->gfx_cs; unsigned sh_base_reg = sctx->shader_pointers.sh_base[PIPE_SHADER_VERTEX]; bool render_cond_bit = sctx->render_cond && !sctx->render_cond_force_off; uint32_t index_max_size = 0; uint64_t index_va = 0; if (info->count_from_stream_output) { struct si_streamout_target *t = (struct si_streamout_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_SRC_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, sctx->gfx_cs, t->buf_filled_size, RADEON_USAGE_READ, RADEON_PRIO_SO_FILLED_SIZE); } /* draw packet */ if (index_size) { if (index_size != sctx->last_index_size) { unsigned index_type; /* index type */ switch (index_size) { case 1: index_type = V_028A7C_VGT_INDEX_8; break; case 2: index_type = V_028A7C_VGT_INDEX_16 | (SI_BIG_ENDIAN && sctx->chip_class <= CIK ? V_028A7C_VGT_DMA_SWAP_16_BIT : 0); break; case 4: index_type = V_028A7C_VGT_INDEX_32 | (SI_BIG_ENDIAN && sctx->chip_class <= CIK ? V_028A7C_VGT_DMA_SWAP_32_BIT : 0); break; default: assert(!"unreachable"); return; } if (sctx->chip_class >= GFX9) { radeon_set_uconfig_reg_idx(cs, sctx->screen, R_03090C_VGT_INDEX_TYPE, 2, index_type); } else { radeon_emit(cs, PKT3(PKT3_INDEX_TYPE, 0, 0)); radeon_emit(cs, index_type); } sctx->last_index_size = index_size; } index_max_size = (indexbuf->width0 - index_offset) / index_size; index_va = si_resource(indexbuf)->gpu_address + index_offset; radeon_add_to_buffer_list(sctx, sctx->gfx_cs, si_resource(indexbuf), 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->chip_class >= CIK) sctx->last_index_size = -1; } if (indirect) { uint64_t indirect_va = si_resource(indirect->buffer)->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, sctx->gfx_cs, si_resource(indirect->buffer), RADEON_USAGE_READ, RADEON_PRIO_DRAW_INDIRECT); unsigned di_src_sel = index_size ? V_0287F0_DI_SRC_SEL_DMA : V_0287F0_DI_SRC_SEL_AUTO_INDEX; assert(indirect->offset % 4 == 0); if (index_size) { 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(index_size ? PKT3_DRAW_INDEX_INDIRECT : PKT3_DRAW_INDIRECT, 3, render_cond_bit)); radeon_emit(cs, 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 (indirect->indirect_draw_count) { struct si_resource *params_buf = si_resource(indirect->indirect_draw_count); radeon_add_to_buffer_list( sctx, sctx->gfx_cs, params_buf, RADEON_USAGE_READ, RADEON_PRIO_DRAW_INDIRECT); count_va = params_buf->gpu_address + indirect->indirect_draw_count_offset; } radeon_emit(cs, PKT3(index_size ? PKT3_DRAW_INDEX_INDIRECT_MULTI : PKT3_DRAW_INDIRECT_MULTI, 8, render_cond_bit)); radeon_emit(cs, 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(!!indirect->indirect_draw_count)); radeon_emit(cs, indirect->draw_count); radeon_emit(cs, count_va); radeon_emit(cs, count_va >> 32); radeon_emit(cs, indirect->stride); radeon_emit(cs, di_src_sel); } } else { unsigned instance_count = info->instance_count; int base_vertex; if (sctx->last_instance_count == SI_INSTANCE_COUNT_UNKNOWN || sctx->last_instance_count != instance_count) { radeon_emit(cs, PKT3(PKT3_NUM_INSTANCES, 0, 0)); radeon_emit(cs, instance_count); sctx->last_instance_count = instance_count; } /* Base vertex and start instance. */ base_vertex = index_size ? info->index_bias : info->start; if (sctx->num_vs_blit_sgprs) { /* Re-emit draw constants after we leave u_blitter. */ si_invalidate_draw_sh_constants(sctx); /* Blit VS doesn't use BASE_VERTEX, START_INSTANCE, and DRAWID. */ radeon_set_sh_reg_seq(cs, sh_base_reg + SI_SGPR_VS_BLIT_DATA * 4, sctx->num_vs_blit_sgprs); radeon_emit_array(cs, sctx->vs_blit_sh_data, sctx->num_vs_blit_sgprs); } else 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; } if (index_size) { index_va += info->start * 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 >> 32); 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)); } } } static void si_emit_surface_sync(struct si_context *sctx, unsigned cp_coher_cntl) { struct radeon_cmdbuf *cs = sctx->gfx_cs; if (sctx->chip_class >= GFX9 || !sctx->has_graphics) { /* Flush caches and wait for the caches to assert idle. */ radeon_emit(cs, PKT3(PKT3_ACQUIRE_MEM, 5, 0)); radeon_emit(cs, cp_coher_cntl); /* CP_COHER_CNTL */ radeon_emit(cs, 0xffffffff); /* CP_COHER_SIZE */ radeon_emit(cs, 0xffffff); /* CP_COHER_SIZE_HI */ radeon_emit(cs, 0); /* CP_COHER_BASE */ radeon_emit(cs, 0); /* CP_COHER_BASE_HI */ radeon_emit(cs, 0x0000000A); /* POLL_INTERVAL */ } else { /* 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 */ } } void si_emit_cache_flush(struct si_context *sctx) { struct radeon_cmdbuf *cs = sctx->gfx_cs; uint32_t flags = sctx->flags; if (!sctx->has_graphics) { /* Only process compute flags. */ flags &= SI_CONTEXT_INV_ICACHE | SI_CONTEXT_INV_SMEM_L1 | SI_CONTEXT_INV_VMEM_L1 | SI_CONTEXT_INV_GLOBAL_L2 | SI_CONTEXT_WRITEBACK_GLOBAL_L2 | SI_CONTEXT_INV_L2_METADATA | SI_CONTEXT_CS_PARTIAL_FLUSH; } uint32_t cp_coher_cntl = 0; uint32_t flush_cb_db = flags & (SI_CONTEXT_FLUSH_AND_INV_CB | SI_CONTEXT_FLUSH_AND_INV_DB); if (flags & SI_CONTEXT_FLUSH_AND_INV_CB) sctx->num_cb_cache_flushes++; if (flags & SI_CONTEXT_FLUSH_AND_INV_DB) sctx->num_db_cache_flushes++; /* 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 (flags & SI_CONTEXT_INV_ICACHE) cp_coher_cntl |= S_0085F0_SH_ICACHE_ACTION_ENA(1); if (flags & SI_CONTEXT_INV_SMEM_L1) cp_coher_cntl |= S_0085F0_SH_KCACHE_ACTION_ENA(1); if (sctx->chip_class <= VI) { if (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 (sctx->chip_class == VI) si_cp_release_mem(sctx, V_028A90_FLUSH_AND_INV_CB_DATA_TS, 0, EOP_DST_SEL_MEM, EOP_INT_SEL_NONE, EOP_DATA_SEL_DISCARD, NULL, 0, 0, SI_NOT_QUERY); } if (flags & SI_CONTEXT_FLUSH_AND_INV_DB) cp_coher_cntl |= S_0085F0_DB_ACTION_ENA(1) | S_0085F0_DB_DEST_BASE_ENA(1); } if (flags & SI_CONTEXT_FLUSH_AND_INV_CB) { /* Flush CMASK/FMASK/DCC. SURFACE_SYNC will wait for idle. */ radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0)); radeon_emit(cs, EVENT_TYPE(V_028A90_FLUSH_AND_INV_CB_META) | EVENT_INDEX(0)); } if (flags & (SI_CONTEXT_FLUSH_AND_INV_DB | SI_CONTEXT_FLUSH_AND_INV_DB_META)) { /* Flush HTILE. SURFACE_SYNC will wait for idle. */ radeon_emit(cs, PKT3(PKT3_EVENT_WRITE, 0, 0)); radeon_emit(cs, EVENT_TYPE(V_028A90_FLUSH_AND_INV_DB_META) | EVENT_INDEX(0)); } /* 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 (!flush_cb_db) { if (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. */ sctx->num_vs_flushes++; sctx->num_ps_flushes++; } else if (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)); sctx->num_vs_flushes++; } } if (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)); sctx->num_cs_flushes++; sctx->compute_is_busy = false; } /* VGT state synchronization. */ if (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 (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)); } /* GFX9: Wait for idle if we're flushing CB or DB. ACQUIRE_MEM doesn't * wait for idle on GFX9. We have to use a TS event. */ if (sctx->chip_class >= GFX9 && flush_cb_db) { uint64_t va; unsigned tc_flags, cb_db_event; /* Set the CB/DB flush event. */ switch (flush_cb_db) { case SI_CONTEXT_FLUSH_AND_INV_CB: cb_db_event = V_028A90_FLUSH_AND_INV_CB_DATA_TS; break; case SI_CONTEXT_FLUSH_AND_INV_DB: cb_db_event = V_028A90_FLUSH_AND_INV_DB_DATA_TS; break; default: /* both CB & DB */ cb_db_event = V_028A90_CACHE_FLUSH_AND_INV_TS_EVENT; } /* These are the only allowed combinations. If you need to * do multiple operations at once, do them separately. * All operations that invalidate L2 also seem to invalidate * metadata. Volatile (VOL) and WC flushes are not listed here. * * TC | TC_WB = writeback & invalidate L2 & L1 * TC | TC_WB | TC_NC = writeback & invalidate L2 for MTYPE == NC * TC_WB | TC_NC = writeback L2 for MTYPE == NC * TC | TC_NC = invalidate L2 for MTYPE == NC * TC | TC_MD = writeback & invalidate L2 metadata (DCC, etc.) * TCL1 = invalidate L1 */ tc_flags = 0; if (flags & SI_CONTEXT_INV_L2_METADATA) { tc_flags = EVENT_TC_ACTION_ENA | EVENT_TC_MD_ACTION_ENA; } /* Ideally flush TC together with CB/DB. */ if (flags & SI_CONTEXT_INV_GLOBAL_L2) { /* Writeback and invalidate everything in L2 & L1. */ tc_flags = EVENT_TC_ACTION_ENA | EVENT_TC_WB_ACTION_ENA; /* Clear the flags. */ flags &= ~(SI_CONTEXT_INV_GLOBAL_L2 | SI_CONTEXT_WRITEBACK_GLOBAL_L2 | SI_CONTEXT_INV_VMEM_L1); sctx->num_L2_invalidates++; } /* Do the flush (enqueue the event and wait for it). */ va = sctx->wait_mem_scratch->gpu_address; sctx->wait_mem_number++; si_cp_release_mem(sctx, cb_db_event, tc_flags, EOP_DST_SEL_MEM, EOP_INT_SEL_SEND_DATA_AFTER_WR_CONFIRM, EOP_DATA_SEL_VALUE_32BIT, sctx->wait_mem_scratch, va, sctx->wait_mem_number, SI_NOT_QUERY); si_cp_wait_mem(sctx, cs, va, sctx->wait_mem_number, 0xffffffff, WAIT_REG_MEM_EQUAL); } /* Make sure ME is idle (it executes most packets) before continuing. * This prevents read-after-write hazards between PFP and ME. */ if (sctx->has_graphics && (cp_coher_cntl || (flags & (SI_CONTEXT_CS_PARTIAL_FLUSH | SI_CONTEXT_INV_VMEM_L1 | SI_CONTEXT_INV_GLOBAL_L2 | SI_CONTEXT_WRITEBACK_GLOBAL_L2)))) { radeon_emit(cs, PKT3(PKT3_PFP_SYNC_ME, 0, 0)); radeon_emit(cs, 0); } /* SI-CI-VI only: * When one of the CP_COHER_CNTL.DEST_BASE flags is set, SURFACE_SYNC * waits for idle, so it should be last. SURFACE_SYNC is done in PFP. * * cp_coher_cntl should contain all necessary flags except TC flags * at this point. * * SI-CIK don't support L2 write-back. */ if (flags & SI_CONTEXT_INV_GLOBAL_L2 || (sctx->chip_class <= CIK && (flags & SI_CONTEXT_WRITEBACK_GLOBAL_L2))) { /* Invalidate L1 & L2. (L1 is always invalidated on SI) * WB must be set on VI+ when TC_ACTION is set. */ si_emit_surface_sync(sctx, cp_coher_cntl | S_0085F0_TC_ACTION_ENA(1) | S_0085F0_TCL1_ACTION_ENA(1) | S_0301F0_TC_WB_ACTION_ENA(sctx->chip_class >= VI)); cp_coher_cntl = 0; sctx->num_L2_invalidates++; } else { /* L1 invalidation and L2 writeback must be done separately, * because both operations can't be done together. */ if (flags & SI_CONTEXT_WRITEBACK_GLOBAL_L2) { /* WB = write-back * NC = apply to non-coherent MTYPEs * (i.e. MTYPE <= 1, which is what we use everywhere) * * WB doesn't work without NC. */ si_emit_surface_sync(sctx, cp_coher_cntl | S_0301F0_TC_WB_ACTION_ENA(1) | S_0301F0_TC_NC_ACTION_ENA(1)); cp_coher_cntl = 0; sctx->num_L2_writebacks++; } if (flags & SI_CONTEXT_INV_VMEM_L1) { /* Invalidate per-CU VMEM L1. */ si_emit_surface_sync(sctx, cp_coher_cntl | S_0085F0_TCL1_ACTION_ENA(1)); cp_coher_cntl = 0; } } /* If TC flushes haven't cleared this... */ if (cp_coher_cntl) si_emit_surface_sync(sctx, cp_coher_cntl); if (flags & SI_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 (flags & SI_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)); } sctx->flags = 0; } static void si_get_draw_start_count(struct si_context *sctx, const struct pipe_draw_info *info, unsigned *start, unsigned *count) { struct pipe_draw_indirect_info *indirect = info->indirect; if (indirect) { unsigned indirect_count; struct pipe_transfer *transfer; unsigned begin, end; unsigned map_size; unsigned *data; if (indirect->indirect_draw_count) { data = pipe_buffer_map_range(&sctx->b, indirect->indirect_draw_count, indirect->indirect_draw_count_offset, sizeof(unsigned), PIPE_TRANSFER_READ, &transfer); indirect_count = *data; pipe_buffer_unmap(&sctx->b, transfer); } else { indirect_count = indirect->draw_count; } if (!indirect_count) { *start = *count = 0; return; } map_size = (indirect_count - 1) * indirect->stride + 3 * sizeof(unsigned); data = pipe_buffer_map_range(&sctx->b, indirect->buffer, indirect->offset, map_size, PIPE_TRANSFER_READ, &transfer); begin = UINT_MAX; end = 0; for (unsigned i = 0; i < indirect_count; ++i) { unsigned count = data[0]; unsigned start = data[2]; if (count > 0) { begin = MIN2(begin, start); end = MAX2(end, start + count); } data += indirect->stride / sizeof(unsigned); } pipe_buffer_unmap(&sctx->b, transfer); if (begin < end) { *start = begin; *count = end - begin; } else { *start = *count = 0; } } else { *start = info->start; *count = info->count; } } static void si_emit_all_states(struct si_context *sctx, const struct pipe_draw_info *info, unsigned skip_atom_mask) { unsigned num_patches = 0; /* Vega10/Raven scissor bug workaround. When any context register is * written (i.e. the GPU rolls the context), PA_SC_VPORT_SCISSOR * registers must be written too. */ bool handle_scissor_bug = (sctx->family == CHIP_VEGA10 || sctx->family == CHIP_RAVEN) && !si_is_atom_dirty(sctx, &sctx->atoms.s.scissors); bool context_roll = false; /* set correctly for GFX9 only */ context_roll |= si_emit_rasterizer_prim_state(sctx); if (sctx->tes_shader.cso) context_roll |= si_emit_derived_tess_state(sctx, info, &num_patches); if (handle_scissor_bug && (info->count_from_stream_output || sctx->dirty_atoms & si_atoms_that_always_roll_context() || sctx->dirty_states & si_states_that_always_roll_context() || si_prim_restart_index_changed(sctx, info))) context_roll = true; sctx->context_roll_counter = 0; /* Emit state atoms. */ unsigned mask = sctx->dirty_atoms & ~skip_atom_mask; while (mask) sctx->atoms.array[u_bit_scan(&mask)].emit(sctx); sctx->dirty_atoms &= skip_atom_mask; /* Emit states. */ mask = sctx->dirty_states; while (mask) { unsigned i = u_bit_scan(&mask); struct si_pm4_state *state = sctx->queued.array[i]; if (!state || sctx->emitted.array[i] == state) continue; si_pm4_emit(sctx, state); sctx->emitted.array[i] = state; } sctx->dirty_states = 0; if (handle_scissor_bug && (context_roll || sctx->context_roll_counter)) { sctx->scissors.dirty_mask = (1 << SI_MAX_VIEWPORTS) - 1; sctx->atoms.s.scissors.emit(sctx); } /* Emit draw states. */ si_emit_vs_state(sctx, info); si_emit_draw_registers(sctx, info, num_patches); } static 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_resource *indexbuf = info->index.resource; unsigned dirty_tex_counter; enum pipe_prim_type rast_prim; unsigned index_size = info->index_size; unsigned index_offset = info->indirect ? info->start * index_size : 0; 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 && (index_size || !info->count_from_stream_output))) return; } if (unlikely(!sctx->vs_shader.cso || !rs || (!sctx->ps_shader.cso && !rs->rasterizer_discard) || (!!sctx->tes_shader.cso != (info->mode == PIPE_PRIM_PATCHES)))) { assert(0); return; } /* Recompute and re-emit the texture resource states if needed. */ dirty_tex_counter = p_atomic_read(&sctx->screen->dirty_tex_counter); if (unlikely(dirty_tex_counter != sctx->last_dirty_tex_counter)) { sctx->last_dirty_tex_counter = dirty_tex_counter; sctx->framebuffer.dirty_cbufs |= ((1 << sctx->framebuffer.state.nr_cbufs) - 1); sctx->framebuffer.dirty_zsbuf = true; si_mark_atom_dirty(sctx, &sctx->atoms.s.framebuffer); si_update_all_texture_descriptors(sctx); } si_decompress_textures(sctx, u_bit_consecutive(0, SI_NUM_GRAPHICS_SHADERS)); /* 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) { if (sctx->tes_shader.cso->info.properties[TGSI_PROPERTY_TES_POINT_MODE]) rast_prim = PIPE_PRIM_POINTS; else 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) { if (util_prim_is_points_or_lines(sctx->current_rast_prim) != util_prim_is_points_or_lines(rast_prim)) si_mark_atom_dirty(sctx, &sctx->atoms.s.guardband); sctx->current_rast_prim = rast_prim; sctx->do_update_shaders = true; } if (sctx->tes_shader.cso && sctx->screen->has_ls_vgpr_init_bug) { /* Determine whether the LS VGPR fix should be applied. * * It is only required when num input CPs > num output CPs, * which cannot happen with the fixed function TCS. We should * also update this bit when switching from TCS to fixed * function TCS. */ struct si_shader_selector *tcs = sctx->tcs_shader.cso; bool ls_vgpr_fix = tcs && info->vertices_per_patch > tcs->info.properties[TGSI_PROPERTY_TCS_VERTICES_OUT]; if (ls_vgpr_fix != sctx->ls_vgpr_fix) { sctx->ls_vgpr_fix = ls_vgpr_fix; sctx->do_update_shaders = true; } } if (sctx->gs_shader.cso) { /* Determine whether the GS triangle strip adjacency fix should * be applied. Rotate every other triangle if * - triangle strips with adjacency are fed to the GS and * - primitive restart is disabled (the rotation doesn't help * when the restart occurs after an odd number of triangles). */ bool gs_tri_strip_adj_fix = !sctx->tes_shader.cso && info->mode == PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY && !info->primitive_restart; if (gs_tri_strip_adj_fix != sctx->gs_tri_strip_adj_fix) { sctx->gs_tri_strip_adj_fix = gs_tri_strip_adj_fix; sctx->do_update_shaders = true; } } if (sctx->do_update_shaders && !si_update_shaders(sctx)) goto return_cleanup; if (index_size) { /* Translate or upload, if needed. */ /* 8-bit indices are supported on VI. */ if (sctx->chip_class <= CIK && index_size == 1) { unsigned start, count, start_offset, size, offset; void *ptr; si_get_draw_start_count(sctx, info, &start, &count); start_offset = start * 2; size = count * 2; indexbuf = NULL; u_upload_alloc(ctx->stream_uploader, start_offset, size, si_optimal_tcc_alignment(sctx, size), &offset, &indexbuf, &ptr); if (!indexbuf) return; util_shorten_ubyte_elts_to_userptr(&sctx->b, info, 0, 0, index_offset + start, count, ptr); /* info->start will be added by the drawing code */ index_offset = offset - start_offset; index_size = 2; } else if (info->has_user_indices) { unsigned start_offset; assert(!info->indirect); start_offset = info->start * index_size; indexbuf = NULL; u_upload_data(ctx->stream_uploader, start_offset, info->count * index_size, sctx->screen->info.tcc_cache_line_size, (char*)info->index.user + start_offset, &index_offset, &indexbuf); if (!indexbuf) return; /* info->start will be added by the drawing code */ index_offset -= start_offset; } else if (sctx->chip_class <= CIK && si_resource(indexbuf)->TC_L2_dirty) { /* VI reads index buffers through TC L2, so it doesn't * need this. */ sctx->flags |= SI_CONTEXT_WRITEBACK_GLOBAL_L2; si_resource(indexbuf)->TC_L2_dirty = false; } } if (info->indirect) { struct pipe_draw_indirect_info *indirect = info->indirect; /* Add the buffer size for memory checking in need_cs_space. */ si_context_add_resource_size(sctx, indirect->buffer); /* Indirect buffers use TC L2 on GFX9, but not older hw. */ if (sctx->chip_class <= VI) { if (si_resource(indirect->buffer)->TC_L2_dirty) { sctx->flags |= SI_CONTEXT_WRITEBACK_GLOBAL_L2; si_resource(indirect->buffer)->TC_L2_dirty = false; } if (indirect->indirect_draw_count && si_resource(indirect->indirect_draw_count)->TC_L2_dirty) { sctx->flags |= SI_CONTEXT_WRITEBACK_GLOBAL_L2; si_resource(indirect->indirect_draw_count)->TC_L2_dirty = false; } } } si_need_gfx_cs_space(sctx); /* Since we've called si_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)) goto return_cleanup; /* Use optimal packet order based on whether we need to sync the pipeline. */ if (unlikely(sctx->flags & (SI_CONTEXT_FLUSH_AND_INV_CB | SI_CONTEXT_FLUSH_AND_INV_DB | SI_CONTEXT_PS_PARTIAL_FLUSH | SI_CONTEXT_CS_PARTIAL_FLUSH))) { /* If we have to wait for idle, set all states first, so that all * SET packets are processed in parallel with previous draw calls. * Then draw and prefetch at the end. This ensures that the time * the CUs are idle is very short. */ unsigned masked_atoms = 0; if (unlikely(sctx->flags & SI_CONTEXT_FLUSH_FOR_RENDER_COND)) masked_atoms |= si_get_atom_bit(sctx, &sctx->atoms.s.render_cond); if (!si_upload_graphics_shader_descriptors(sctx)) goto return_cleanup; /* Emit all states except possibly render condition. */ si_emit_all_states(sctx, info, masked_atoms); si_emit_cache_flush(sctx); /* <-- CUs are idle here. */ if (si_is_atom_dirty(sctx, &sctx->atoms.s.render_cond)) sctx->atoms.s.render_cond.emit(sctx); sctx->dirty_atoms = 0; si_emit_draw_packets(sctx, info, indexbuf, index_size, index_offset); /* <-- CUs are busy here. */ /* Start prefetches after the draw has been started. Both will run * in parallel, but starting the draw first is more important. */ if (sctx->chip_class >= CIK && sctx->prefetch_L2_mask) cik_emit_prefetch_L2(sctx, false); } else { /* If we don't wait for idle, start prefetches first, then set * states, and draw at the end. */ if (sctx->flags) si_emit_cache_flush(sctx); /* Only prefetch the API VS and VBO descriptors. */ if (sctx->chip_class >= CIK && sctx->prefetch_L2_mask) cik_emit_prefetch_L2(sctx, true); if (!si_upload_graphics_shader_descriptors(sctx)) return; si_emit_all_states(sctx, info, 0); si_emit_draw_packets(sctx, info, indexbuf, index_size, index_offset); /* Prefetch the remaining shaders after the draw has been * started. */ if (sctx->chip_class >= CIK && sctx->prefetch_L2_mask) cik_emit_prefetch_L2(sctx, false); } if (unlikely(sctx->current_saved_cs)) { si_trace_emit(sctx); si_log_draw_state(sctx, sctx->log); } /* Workaround for a VGT hang when streamout is enabled. * It must be done after drawing. */ if ((sctx->family == CHIP_HAWAII || sctx->family == CHIP_TONGA || sctx->family == CHIP_FIJI) && si_get_strmout_en(sctx)) { sctx->flags |= SI_CONTEXT_VGT_STREAMOUT_SYNC; } if (unlikely(sctx->decompression_enabled)) { sctx->num_decompress_calls++; } else { sctx->num_draw_calls++; if (sctx->framebuffer.state.nr_cbufs > 1) sctx->num_mrt_draw_calls++; if (info->primitive_restart) sctx->num_prim_restart_calls++; if (G_0286E8_WAVESIZE(sctx->spi_tmpring_size)) sctx->num_spill_draw_calls++; } return_cleanup: if (index_size && indexbuf != info->index.resource) pipe_resource_reference(&indexbuf, NULL); } static void si_draw_rectangle(struct blitter_context *blitter, void *vertex_elements_cso, blitter_get_vs_func get_vs, int x1, int y1, int x2, int y2, float depth, unsigned num_instances, enum blitter_attrib_type type, const union blitter_attrib *attrib) { struct pipe_context *pipe = util_blitter_get_pipe(blitter); struct si_context *sctx = (struct si_context*)pipe; /* Pack position coordinates as signed int16. */ sctx->vs_blit_sh_data[0] = (uint32_t)(x1 & 0xffff) | ((uint32_t)(y1 & 0xffff) << 16); sctx->vs_blit_sh_data[1] = (uint32_t)(x2 & 0xffff) | ((uint32_t)(y2 & 0xffff) << 16); sctx->vs_blit_sh_data[2] = fui(depth); switch (type) { case UTIL_BLITTER_ATTRIB_COLOR: memcpy(&sctx->vs_blit_sh_data[3], attrib->color, sizeof(float)*4); break; case UTIL_BLITTER_ATTRIB_TEXCOORD_XY: case UTIL_BLITTER_ATTRIB_TEXCOORD_XYZW: memcpy(&sctx->vs_blit_sh_data[3], &attrib->texcoord, sizeof(attrib->texcoord)); break; case UTIL_BLITTER_ATTRIB_NONE:; } pipe->bind_vs_state(pipe, si_get_blitter_vs(sctx, type, num_instances)); struct pipe_draw_info info = {}; info.mode = SI_PRIM_RECTANGLE_LIST; info.count = 3; info.instance_count = num_instances; /* Don't set per-stage shader pointers for VS. */ sctx->shader_pointers_dirty &= ~SI_DESCS_SHADER_MASK(VERTEX); sctx->vertex_buffer_pointer_dirty = false; si_draw_vbo(pipe, &info); } void si_trace_emit(struct si_context *sctx) { struct radeon_cmdbuf *cs = sctx->gfx_cs; uint32_t trace_id = ++sctx->current_saved_cs->trace_id; si_cp_write_data(sctx, sctx->current_saved_cs->trace_buf, 0, 4, V_370_MEM, V_370_ME, &trace_id); radeon_emit(cs, PKT3(PKT3_NOP, 0, 0)); radeon_emit(cs, AC_ENCODE_TRACE_POINT(trace_id)); if (sctx->log) u_log_flush(sctx->log); } void si_init_draw_functions(struct si_context *sctx) { sctx->b.draw_vbo = si_draw_vbo; sctx->blitter->draw_rectangle = si_draw_rectangle; si_init_ia_multi_vgt_param_table(sctx); }