| /* |
| * Copyright © 2014 Intel Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS 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 "brw_cfg.h" |
| #include "brw_eu.h" |
| #include "intel_debug.h" |
| #include "intel_asm_annotation.h" |
| #include "compiler/nir/nir.h" |
| |
| void |
| dump_assembly(void *assembly, int num_annotations, struct annotation *annotation, |
| const struct gen_device_info *devinfo) |
| { |
| const char *last_annotation_string = NULL; |
| const void *last_annotation_ir = NULL; |
| |
| for (int i = 0; i < num_annotations; i++) { |
| int start_offset = annotation[i].offset; |
| int end_offset = annotation[i + 1].offset; |
| |
| if (annotation[i].block_start) { |
| fprintf(stderr, " START B%d", annotation[i].block_start->num); |
| foreach_list_typed(struct bblock_link, predecessor_link, link, |
| &annotation[i].block_start->parents) { |
| struct bblock_t *predecessor_block = predecessor_link->block; |
| fprintf(stderr, " <-B%d", predecessor_block->num); |
| } |
| fprintf(stderr, " (%u cycles)\n", annotation[i].block_start->cycle_count); |
| } |
| |
| if (last_annotation_ir != annotation[i].ir) { |
| last_annotation_ir = annotation[i].ir; |
| if (last_annotation_ir) { |
| fprintf(stderr, " "); |
| nir_print_instr(annotation[i].ir, stderr); |
| fprintf(stderr, "\n"); |
| } |
| } |
| |
| if (last_annotation_string != annotation[i].annotation) { |
| last_annotation_string = annotation[i].annotation; |
| if (last_annotation_string) |
| fprintf(stderr, " %s\n", last_annotation_string); |
| } |
| |
| brw_disassemble(devinfo, assembly, start_offset, end_offset, stderr); |
| |
| if (annotation[i].error) { |
| fputs(annotation[i].error, stderr); |
| } |
| |
| if (annotation[i].block_end) { |
| fprintf(stderr, " END B%d", annotation[i].block_end->num); |
| foreach_list_typed(struct bblock_link, successor_link, link, |
| &annotation[i].block_end->children) { |
| struct bblock_t *successor_block = successor_link->block; |
| fprintf(stderr, " ->B%d", successor_block->num); |
| } |
| fprintf(stderr, "\n"); |
| } |
| } |
| fprintf(stderr, "\n"); |
| } |
| |
| static bool |
| annotation_array_ensure_space(struct annotation_info *annotation) |
| { |
| if (annotation->ann_size <= annotation->ann_count) { |
| int old_size = annotation->ann_size; |
| annotation->ann_size = MAX2(1024, annotation->ann_size * 2); |
| annotation->ann = reralloc(annotation->mem_ctx, annotation->ann, |
| struct annotation, annotation->ann_size); |
| if (!annotation->ann) |
| return false; |
| |
| memset(annotation->ann + old_size, 0, |
| (annotation->ann_size - old_size) * sizeof(struct annotation)); |
| } |
| |
| return true; |
| } |
| |
| void annotate(const struct gen_device_info *devinfo, |
| struct annotation_info *annotation, const struct cfg_t *cfg, |
| struct backend_instruction *inst, unsigned offset) |
| { |
| if (annotation->mem_ctx == NULL) |
| annotation->mem_ctx = ralloc_context(NULL); |
| |
| if (!annotation_array_ensure_space(annotation)) |
| return; |
| |
| struct annotation *ann = &annotation->ann[annotation->ann_count++]; |
| ann->offset = offset; |
| if ((INTEL_DEBUG & DEBUG_ANNOTATION) != 0) { |
| ann->ir = inst->ir; |
| ann->annotation = inst->annotation; |
| } |
| |
| if (bblock_start(cfg->blocks[annotation->cur_block]) == inst) { |
| ann->block_start = cfg->blocks[annotation->cur_block]; |
| } |
| |
| /* There is no hardware DO instruction on Gen6+, so since DO always |
| * starts a basic block, we need to set the .block_start of the next |
| * instruction's annotation with a pointer to the bblock started by |
| * the DO. |
| * |
| * There's also only complication from emitting an annotation without |
| * a corresponding hardware instruction to disassemble. |
| */ |
| if (devinfo->gen >= 6 && inst->opcode == BRW_OPCODE_DO) { |
| annotation->ann_count--; |
| } |
| |
| if (bblock_end(cfg->blocks[annotation->cur_block]) == inst) { |
| ann->block_end = cfg->blocks[annotation->cur_block]; |
| annotation->cur_block++; |
| } |
| } |
| |
| void |
| annotation_finalize(struct annotation_info *annotation, |
| unsigned next_inst_offset) |
| { |
| if (!annotation->ann_count) |
| return; |
| |
| if (annotation->ann_count == annotation->ann_size) { |
| annotation->ann = reralloc(annotation->mem_ctx, annotation->ann, |
| struct annotation, annotation->ann_size + 1); |
| } |
| annotation->ann[annotation->ann_count].offset = next_inst_offset; |
| } |
| |
| void |
| annotation_insert_error(struct annotation_info *annotation, unsigned offset, |
| const char *error) |
| { |
| struct annotation *ann; |
| |
| if (!annotation->ann_count) |
| return; |
| |
| /* We may have to split an annotation, so ensure we have enough space |
| * allocated for that case up front. |
| */ |
| if (!annotation_array_ensure_space(annotation)) |
| return; |
| |
| assume(annotation->ann_count > 0); |
| |
| for (int i = 0; i < annotation->ann_count; i++) { |
| struct annotation *cur = &annotation->ann[i]; |
| struct annotation *next = &annotation->ann[i + 1]; |
| ann = cur; |
| |
| if (next->offset <= offset) |
| continue; |
| |
| if (offset + sizeof(brw_inst) != next->offset) { |
| memmove(next, cur, |
| (annotation->ann_count - i + 2) * sizeof(struct annotation)); |
| cur->error = NULL; |
| cur->error_length = 0; |
| cur->block_end = NULL; |
| next->offset = offset + sizeof(brw_inst); |
| next->block_start = NULL; |
| annotation->ann_count++; |
| } |
| break; |
| } |
| |
| if (ann->error) |
| ralloc_strcat(&ann->error, error); |
| else |
| ann->error = ralloc_strdup(annotation->mem_ctx, error); |
| } |
