/* * 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 "util/u_memory.h" #include "util/u_framebuffer.h" #include "util/u_blitter.h" #include "tgsi/tgsi_parse.h" #include "radeonsi_pipe.h" #include "radeonsi_shader.h" #include "si_state.h" #include "sid.h" /* * Shaders */ static void si_pipe_shader_vs(struct pipe_context *ctx, struct si_pipe_shader *shader) { struct r600_context *rctx = (struct r600_context *)ctx; struct si_pm4_state *pm4; unsigned num_sgprs, num_user_sgprs; unsigned nparams, i; uint64_t va; si_pm4_delete_state(rctx, vs, shader->pm4); pm4 = shader->pm4 = CALLOC_STRUCT(si_pm4_state); si_pm4_inval_shader_cache(pm4); /* Certain attributes (position, psize, etc.) don't count as params. * VS is required to export at least one param and r600_shader_from_tgsi() * takes care of adding a dummy export. */ for (nparams = 0, i = 0 ; i < shader->shader.noutput; i++) { if (shader->shader.output[i].name != TGSI_SEMANTIC_POSITION) nparams++; } if (nparams < 1) nparams = 1; si_pm4_set_reg(pm4, R_0286C4_SPI_VS_OUT_CONFIG, S_0286C4_VS_EXPORT_COUNT(nparams - 1)); si_pm4_set_reg(pm4, R_02870C_SPI_SHADER_POS_FORMAT, S_02870C_POS0_EXPORT_FORMAT(V_02870C_SPI_SHADER_4COMP) | S_02870C_POS1_EXPORT_FORMAT(V_02870C_SPI_SHADER_NONE) | S_02870C_POS2_EXPORT_FORMAT(V_02870C_SPI_SHADER_NONE) | S_02870C_POS3_EXPORT_FORMAT(V_02870C_SPI_SHADER_NONE)); va = r600_resource_va(ctx->screen, (void *)shader->bo); si_pm4_add_bo(pm4, shader->bo, RADEON_USAGE_READ); si_pm4_set_reg(pm4, R_00B120_SPI_SHADER_PGM_LO_VS, va >> 8); si_pm4_set_reg(pm4, R_00B124_SPI_SHADER_PGM_HI_VS, va >> 40); num_user_sgprs = SI_VS_NUM_USER_SGPR; num_sgprs = shader->num_sgprs; if (num_user_sgprs > num_sgprs) num_sgprs = num_user_sgprs; /* Last 2 reserved SGPRs are used for VCC */ num_sgprs += 2; assert(num_sgprs <= 104); si_pm4_set_reg(pm4, R_00B128_SPI_SHADER_PGM_RSRC1_VS, S_00B128_VGPRS((shader->num_vgprs - 1) / 4) | S_00B128_SGPRS((num_sgprs - 1) / 8)); si_pm4_set_reg(pm4, R_00B12C_SPI_SHADER_PGM_RSRC2_VS, S_00B12C_USER_SGPR(num_user_sgprs)); si_pm4_bind_state(rctx, vs, shader->pm4); } static void si_pipe_shader_ps(struct pipe_context *ctx, struct si_pipe_shader *shader) { struct r600_context *rctx = (struct r600_context *)ctx; struct si_pm4_state *pm4; unsigned i, exports_ps, num_cout, spi_ps_in_control, db_shader_control; unsigned num_sgprs, num_user_sgprs; boolean have_linear = FALSE, have_centroid = FALSE, have_perspective = FALSE; unsigned fragcoord_interp_mode = 0; unsigned spi_baryc_cntl, spi_ps_input_ena, spi_shader_z_format; uint64_t va; si_pm4_delete_state(rctx, ps, shader->pm4); pm4 = shader->pm4 = CALLOC_STRUCT(si_pm4_state); si_pm4_inval_shader_cache(pm4); db_shader_control = S_02880C_Z_ORDER(V_02880C_EARLY_Z_THEN_LATE_Z); for (i = 0; i < shader->shader.ninput; i++) { switch (shader->shader.input[i].name) { case TGSI_SEMANTIC_POSITION: if (shader->shader.input[i].centroid) { /* fragcoord_interp_mode will be written to * SPI_BARYC_CNTL.POS_FLOAT_LOCATION * Possible vaules: * 0 -> Position = pixel center (default) * 1 -> Position = pixel centroid * 2 -> Position = iterated sample number XXX: * What does this mean? */ fragcoord_interp_mode = 1; } /* Fall through */ case TGSI_SEMANTIC_FACE: continue; } /* XXX: Flat shading hangs the GPU */ if (shader->shader.input[i].interpolate == TGSI_INTERPOLATE_CONSTANT || (shader->shader.input[i].interpolate == TGSI_INTERPOLATE_COLOR && rctx->queued.named.rasterizer->flatshade)) have_linear = TRUE; if (shader->shader.input[i].interpolate == TGSI_INTERPOLATE_LINEAR) have_linear = TRUE; if (shader->shader.input[i].interpolate == TGSI_INTERPOLATE_PERSPECTIVE) have_perspective = TRUE; if (shader->shader.input[i].centroid) have_centroid = TRUE; } for (i = 0; i < shader->shader.noutput; i++) { if (shader->shader.output[i].name == TGSI_SEMANTIC_POSITION) db_shader_control |= S_02880C_Z_EXPORT_ENABLE(1); if (shader->shader.output[i].name == TGSI_SEMANTIC_STENCIL) db_shader_control |= S_02880C_STENCIL_TEST_VAL_EXPORT_ENABLE(1); } if (shader->shader.uses_kill || shader->key.alpha_func != PIPE_FUNC_ALWAYS) db_shader_control |= S_02880C_KILL_ENABLE(1); exports_ps = 0; num_cout = 0; for (i = 0; i < shader->shader.noutput; i++) { if (shader->shader.output[i].name == TGSI_SEMANTIC_POSITION || shader->shader.output[i].name == TGSI_SEMANTIC_STENCIL) exports_ps |= 1; else if (shader->shader.output[i].name == TGSI_SEMANTIC_COLOR) { if (shader->shader.fs_write_all) num_cout = shader->shader.nr_cbufs; else num_cout++; } } if (!exports_ps) { /* always at least export 1 component per pixel */ exports_ps = 2; } spi_ps_in_control = S_0286D8_NUM_INTERP(shader->shader.ninterp); spi_baryc_cntl = 0; if (have_perspective) spi_baryc_cntl |= have_centroid ? S_0286E0_PERSP_CENTROID_CNTL(1) : S_0286E0_PERSP_CENTER_CNTL(1); if (have_linear) spi_baryc_cntl |= have_centroid ? S_0286E0_LINEAR_CENTROID_CNTL(1) : S_0286E0_LINEAR_CENTER_CNTL(1); spi_baryc_cntl |= S_0286E0_POS_FLOAT_LOCATION(fragcoord_interp_mode); si_pm4_set_reg(pm4, R_0286E0_SPI_BARYC_CNTL, spi_baryc_cntl); spi_ps_input_ena = shader->spi_ps_input_ena; /* we need to enable at least one of them, otherwise we hang the GPU */ assert(G_0286CC_PERSP_SAMPLE_ENA(spi_ps_input_ena) || G_0286CC_PERSP_CENTER_ENA(spi_ps_input_ena) || G_0286CC_PERSP_CENTROID_ENA(spi_ps_input_ena) || G_0286CC_PERSP_PULL_MODEL_ENA(spi_ps_input_ena) || G_0286CC_LINEAR_SAMPLE_ENA(spi_ps_input_ena) || G_0286CC_LINEAR_CENTER_ENA(spi_ps_input_ena) || G_0286CC_LINEAR_CENTROID_ENA(spi_ps_input_ena) || G_0286CC_LINE_STIPPLE_TEX_ENA(spi_ps_input_ena)); si_pm4_set_reg(pm4, R_0286CC_SPI_PS_INPUT_ENA, spi_ps_input_ena); si_pm4_set_reg(pm4, R_0286D0_SPI_PS_INPUT_ADDR, spi_ps_input_ena); si_pm4_set_reg(pm4, R_0286D8_SPI_PS_IN_CONTROL, spi_ps_in_control); if (G_02880C_STENCIL_TEST_VAL_EXPORT_ENABLE(db_shader_control)) spi_shader_z_format = V_028710_SPI_SHADER_32_GR; else if (G_02880C_Z_EXPORT_ENABLE(db_shader_control)) spi_shader_z_format = V_028710_SPI_SHADER_32_R; else spi_shader_z_format = 0; si_pm4_set_reg(pm4, R_028710_SPI_SHADER_Z_FORMAT, spi_shader_z_format); va = r600_resource_va(ctx->screen, (void *)shader->bo); si_pm4_add_bo(pm4, shader->bo, RADEON_USAGE_READ); si_pm4_set_reg(pm4, R_00B020_SPI_SHADER_PGM_LO_PS, va >> 8); si_pm4_set_reg(pm4, R_00B024_SPI_SHADER_PGM_HI_PS, va >> 40); num_user_sgprs = SI_PS_NUM_USER_SGPR; num_sgprs = shader->num_sgprs; if (num_user_sgprs > num_sgprs) num_sgprs = num_user_sgprs; /* Last 2 reserved SGPRs are used for VCC */ num_sgprs += 2; assert(num_sgprs <= 104); si_pm4_set_reg(pm4, R_00B028_SPI_SHADER_PGM_RSRC1_PS, S_00B028_VGPRS((shader->num_vgprs - 1) / 4) | S_00B028_SGPRS((num_sgprs - 1) / 8)); si_pm4_set_reg(pm4, R_00B02C_SPI_SHADER_PGM_RSRC2_PS, S_00B02C_USER_SGPR(num_user_sgprs)); si_pm4_set_reg(pm4, R_02880C_DB_SHADER_CONTROL, db_shader_control); shader->sprite_coord_enable = rctx->sprite_coord_enable; si_pm4_bind_state(rctx, ps, shader->pm4); } /* * Drawing */ static unsigned si_conv_pipe_prim(unsigned pprim) { 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] = ~0, [PIPE_PRIM_LINE_STRIP_ADJACENCY] = ~0, [PIPE_PRIM_TRIANGLES_ADJACENCY] = ~0, [PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY] = ~0 }; unsigned result = prim_conv[pprim]; if (result == ~0) { R600_ERR("unsupported primitive type %d\n", pprim); } return result; } static bool si_update_draw_info_state(struct r600_context *rctx, const struct pipe_draw_info *info) { struct si_pm4_state *pm4 = CALLOC_STRUCT(si_pm4_state); unsigned prim = si_conv_pipe_prim(info->mode); unsigned ls_mask = 0; if (pm4 == NULL) return false; if (prim == ~0) { FREE(pm4); return false; } si_pm4_set_reg(pm4, R_008958_VGT_PRIMITIVE_TYPE, prim); si_pm4_set_reg(pm4, R_028400_VGT_MAX_VTX_INDX, ~0); si_pm4_set_reg(pm4, R_028404_VGT_MIN_VTX_INDX, 0); si_pm4_set_reg(pm4, R_028408_VGT_INDX_OFFSET, info->indexed ? info->index_bias : info->start); si_pm4_set_reg(pm4, R_02840C_VGT_MULTI_PRIM_IB_RESET_INDX, info->restart_index); si_pm4_set_reg(pm4, R_028A94_VGT_MULTI_PRIM_IB_RESET_EN, info->primitive_restart); #if 0 si_pm4_set_reg(pm4, R_03CFF0_SQ_VTX_BASE_VTX_LOC, 0); si_pm4_set_reg(pm4, R_03CFF4_SQ_VTX_START_INST_LOC, info->start_instance); #endif if (prim == V_008958_DI_PT_LINELIST) ls_mask = 1; else if (prim == V_008958_DI_PT_LINESTRIP) ls_mask = 2; si_pm4_set_reg(pm4, R_028A0C_PA_SC_LINE_STIPPLE, S_028A0C_AUTO_RESET_CNTL(ls_mask) | rctx->pa_sc_line_stipple); if (info->mode == PIPE_PRIM_QUADS || info->mode == PIPE_PRIM_QUAD_STRIP || info->mode == PIPE_PRIM_POLYGON) { si_pm4_set_reg(pm4, R_028814_PA_SU_SC_MODE_CNTL, S_028814_PROVOKING_VTX_LAST(1) | rctx->pa_su_sc_mode_cntl); } else { si_pm4_set_reg(pm4, R_028814_PA_SU_SC_MODE_CNTL, rctx->pa_su_sc_mode_cntl); } si_pm4_set_reg(pm4, R_02881C_PA_CL_VS_OUT_CNTL, prim == PIPE_PRIM_POINTS ? rctx->pa_cl_vs_out_cntl : 0 /*| (rctx->rasterizer->clip_plane_enable & rctx->vs_shader->shader.clip_dist_write)*/); si_pm4_set_reg(pm4, R_028810_PA_CL_CLIP_CNTL, rctx->pa_cl_clip_cntl /*| (rctx->vs_shader->shader.clip_dist_write || rctx->vs_shader->shader.vs_prohibit_ucps ? 0 : rctx->rasterizer->clip_plane_enable & 0x3F)*/); si_pm4_set_state(rctx, draw_info, pm4); return true; } static void si_update_spi_map(struct r600_context *rctx) { struct si_shader *ps = &rctx->ps_shader->current->shader; struct si_shader *vs = &rctx->vs_shader->current->shader; struct si_pm4_state *pm4 = CALLOC_STRUCT(si_pm4_state); unsigned i, j, tmp; for (i = 0; i < ps->ninput; i++) { unsigned name = ps->input[i].name; unsigned param_offset = ps->input[i].param_offset; bcolor: tmp = 0; #if 0 /* XXX: Flat shading hangs the GPU */ if (name == TGSI_SEMANTIC_POSITION || ps->input[i].interpolate == TGSI_INTERPOLATE_CONSTANT || (ps->input[i].interpolate == TGSI_INTERPOLATE_COLOR && rctx->rasterizer && rctx->rasterizer->flatshade)) { tmp |= S_028644_FLAT_SHADE(1); } #endif if (name == TGSI_SEMANTIC_GENERIC && rctx->sprite_coord_enable & (1 << ps->input[i].sid)) { tmp |= S_028644_PT_SPRITE_TEX(1); } for (j = 0; j < vs->noutput; j++) { if (name == vs->output[j].name && ps->input[i].sid == vs->output[j].sid) { tmp |= S_028644_OFFSET(vs->output[j].param_offset); break; } } if (j == vs->noutput) { /* No corresponding output found, load defaults into input */ tmp |= S_028644_OFFSET(0x20); } si_pm4_set_reg(pm4, R_028644_SPI_PS_INPUT_CNTL_0 + param_offset * 4, tmp); if (name == TGSI_SEMANTIC_COLOR && rctx->ps_shader->current->key.color_two_side) { name = TGSI_SEMANTIC_BCOLOR; param_offset++; goto bcolor; } } si_pm4_set_state(rctx, spi, pm4); } static void si_update_derived_state(struct r600_context *rctx) { struct pipe_context * ctx = (struct pipe_context*)rctx; unsigned ps_dirty = 0; if (!rctx->blitter->running) { if (rctx->have_depth_fb || rctx->have_depth_texture) si_flush_depth_textures(rctx); } si_shader_select(ctx, rctx->ps_shader, &ps_dirty); if (!rctx->vs_shader->current->pm4) { si_pipe_shader_vs(ctx, rctx->vs_shader->current); } if (!rctx->ps_shader->current->pm4) { si_pipe_shader_ps(ctx, rctx->ps_shader->current); ps_dirty = 0; } if (!rctx->ps_shader->current->bo) { if (!rctx->dummy_pixel_shader->pm4) si_pipe_shader_ps(ctx, rctx->dummy_pixel_shader); else si_pm4_bind_state(rctx, vs, rctx->dummy_pixel_shader->pm4); ps_dirty = 0; } if (ps_dirty) { si_pm4_bind_state(rctx, ps, rctx->ps_shader->current->pm4); } if (si_pm4_state_changed(rctx, ps) || si_pm4_state_changed(rctx, vs)) { si_update_spi_map(rctx); } } static void si_vertex_buffer_update(struct r600_context *rctx) { struct pipe_context *ctx = &rctx->context; struct si_pm4_state *pm4 = CALLOC_STRUCT(si_pm4_state); bool bound[PIPE_MAX_ATTRIBS] = {}; unsigned i, count; uint64_t va; si_pm4_inval_vertex_cache(pm4); /* bind vertex buffer once */ count = rctx->vertex_elements->count; assert(count <= 256 / 4); si_pm4_sh_data_begin(pm4); for (i = 0 ; i < count; i++) { struct pipe_vertex_element *ve = &rctx->vertex_elements->elements[i]; struct pipe_vertex_buffer *vb; struct si_resource *rbuffer; unsigned offset; if (ve->vertex_buffer_index >= rctx->nr_vertex_buffers) continue; vb = &rctx->vertex_buffer[ve->vertex_buffer_index]; rbuffer = (struct si_resource*)vb->buffer; if (rbuffer == NULL) continue; offset = 0; offset += vb->buffer_offset; offset += ve->src_offset; va = r600_resource_va(ctx->screen, (void*)rbuffer); va += offset; /* Fill in T# buffer resource description */ si_pm4_sh_data_add(pm4, va & 0xFFFFFFFF); si_pm4_sh_data_add(pm4, (S_008F04_BASE_ADDRESS_HI(va >> 32) | S_008F04_STRIDE(vb->stride))); si_pm4_sh_data_add(pm4, (vb->buffer->width0 - vb->buffer_offset) / MAX2(vb->stride, 1)); si_pm4_sh_data_add(pm4, rctx->vertex_elements->rsrc_word3[i]); if (!bound[ve->vertex_buffer_index]) { si_pm4_add_bo(pm4, rbuffer, RADEON_USAGE_READ); bound[ve->vertex_buffer_index] = true; } } si_pm4_sh_data_end(pm4, R_00B130_SPI_SHADER_USER_DATA_VS_0, SI_SGPR_VERTEX_BUFFER); si_pm4_set_state(rctx, vertex_buffers, pm4); } static void si_state_draw(struct r600_context *rctx, const struct pipe_draw_info *info, const struct pipe_index_buffer *ib) { struct si_pm4_state *pm4 = CALLOC_STRUCT(si_pm4_state); /* queries need some special values * (this is non-zero if any query is active) */ if (rctx->num_cs_dw_queries_suspend) { struct si_state_dsa *dsa = rctx->queued.named.dsa; si_pm4_set_reg(pm4, R_028004_DB_COUNT_CONTROL, S_028004_PERFECT_ZPASS_COUNTS(1)); si_pm4_set_reg(pm4, R_02800C_DB_RENDER_OVERRIDE, dsa->db_render_override | S_02800C_NOOP_CULL_DISABLE(1)); } /* draw packet */ si_pm4_cmd_begin(pm4, PKT3_INDEX_TYPE); if (ib->index_size == 4) { si_pm4_cmd_add(pm4, V_028A7C_VGT_INDEX_32 | (R600_BIG_ENDIAN ? V_028A7C_VGT_DMA_SWAP_32_BIT : 0)); } else { si_pm4_cmd_add(pm4, V_028A7C_VGT_INDEX_16 | (R600_BIG_ENDIAN ? V_028A7C_VGT_DMA_SWAP_16_BIT : 0)); } si_pm4_cmd_end(pm4, rctx->predicate_drawing); si_pm4_cmd_begin(pm4, PKT3_NUM_INSTANCES); si_pm4_cmd_add(pm4, info->instance_count); si_pm4_cmd_end(pm4, rctx->predicate_drawing); if (info->indexed) { uint32_t max_size = (ib->buffer->width0 - ib->offset) / rctx->index_buffer.index_size; uint64_t va; va = r600_resource_va(&rctx->screen->screen, ib->buffer); va += ib->offset; si_pm4_add_bo(pm4, (struct si_resource *)ib->buffer, RADEON_USAGE_READ); si_cmd_draw_index_2(pm4, max_size, va, info->count, V_0287F0_DI_SRC_SEL_DMA, rctx->predicate_drawing); } else { uint32_t initiator = V_0287F0_DI_SRC_SEL_AUTO_INDEX; initiator |= S_0287F0_USE_OPAQUE(!!info->count_from_stream_output); si_cmd_draw_index_auto(pm4, info->count, initiator, rctx->predicate_drawing); } si_pm4_set_state(rctx, draw, pm4); } void si_draw_vbo(struct pipe_context *ctx, const struct pipe_draw_info *info) { struct r600_context *rctx = (struct r600_context *)ctx; struct pipe_index_buffer ib = {}; uint32_t cp_coher_cntl; if ((!info->count && (info->indexed || !info->count_from_stream_output)) || (info->indexed && !rctx->index_buffer.buffer)) { return; } if (!rctx->ps_shader || !rctx->vs_shader) return; si_update_derived_state(rctx); si_vertex_buffer_update(rctx); if (info->indexed) { /* Initialize the index buffer struct. */ pipe_resource_reference(&ib.buffer, rctx->index_buffer.buffer); ib.index_size = rctx->index_buffer.index_size; ib.offset = rctx->index_buffer.offset + info->start * ib.index_size; /* Translate or upload, if needed. */ r600_translate_index_buffer(rctx, &ib, info->count); if (ib.user_buffer) { r600_upload_index_buffer(rctx, &ib, info->count); } } else if (info->count_from_stream_output) { r600_context_draw_opaque_count(rctx, (struct r600_so_target*)info->count_from_stream_output); } rctx->vs_shader_so_strides = rctx->vs_shader->current->so_strides; if (!si_update_draw_info_state(rctx, info)) return; si_state_draw(rctx, info, &ib); cp_coher_cntl = si_pm4_sync_flags(rctx); if (cp_coher_cntl) { struct si_pm4_state *pm4 = CALLOC_STRUCT(si_pm4_state); si_cmd_surface_sync(pm4, cp_coher_cntl); si_pm4_set_state(rctx, sync, pm4); } /* Emit states. */ rctx->pm4_dirty_cdwords += si_pm4_dirty_dw(rctx); si_need_cs_space(rctx, 0, TRUE); si_pm4_emit_dirty(rctx); rctx->pm4_dirty_cdwords = 0; #if 0 /* Enable stream out if needed. */ if (rctx->streamout_start) { r600_context_streamout_begin(rctx); rctx->streamout_start = FALSE; } #endif rctx->flags |= R600_CONTEXT_DST_CACHES_DIRTY; if (rctx->framebuffer.zsbuf) { struct pipe_resource *tex = rctx->framebuffer.zsbuf->texture; ((struct r600_resource_texture *)tex)->dirty_db = TRUE; } pipe_resource_reference(&ib.buffer, NULL); }