diff options
| -rw-r--r-- | src/intel/common/gen_decoder.h | 48 | ||||
| -rw-r--r-- | src/intel/tools/gen_batch_decoder.c | 258 |
2 files changed, 306 insertions, 0 deletions
diff --git a/src/intel/common/gen_decoder.h b/src/intel/common/gen_decoder.h index fe3cf273ed6..b188787a76f 100644 --- a/src/intel/common/gen_decoder.h +++ b/src/intel/common/gen_decoder.h @@ -26,6 +26,7 @@ #include <stdint.h> #include <stdbool.h> +#include <stdio.h> #include "common/gen_device_info.h" #include "util/hash_table.h" @@ -183,6 +184,53 @@ void gen_print_group(FILE *out, uint64_t offset, const uint32_t *p, int p_bit, bool color); +enum gen_batch_decode_flags { + /** Print in color! */ + GEN_BATCH_DECODE_IN_COLOR = (1 << 0), + /** Print everything, not just headers */ + GEN_BATCH_DECODE_FULL = (1 << 1), + /** Print offsets along with the batch */ + GEN_BATCH_DECODE_OFFSETS = (1 << 2), +}; + +struct gen_batch_decode_bo { + uint64_t addr; + uint32_t size; + const void *map; +}; + +struct gen_disasm *disasm; + +struct gen_batch_decode_ctx { + struct gen_batch_decode_bo (*get_bo)(void *user_data, + uint64_t base_address); + void *user_data; + + FILE *fp; + struct gen_spec *spec; + enum gen_batch_decode_flags flags; + + struct gen_disasm *disasm; + + struct gen_batch_decode_bo surface_base; + struct gen_batch_decode_bo dynamic_base; + struct gen_batch_decode_bo instruction_base; +}; + +void gen_batch_decode_ctx_init(struct gen_batch_decode_ctx *ctx, + const struct gen_device_info *devinfo, + FILE *fp, enum gen_batch_decode_flags flags, + const char *xml_path, + struct gen_batch_decode_bo (*get_bo)(void *, + uint64_t), + void *user_data); +void gen_batch_decode_ctx_finish(struct gen_batch_decode_ctx *ctx); + + +void gen_print_batch(struct gen_batch_decode_ctx *ctx, + const uint32_t *batch, uint32_t batch_size, + uint64_t batch_addr); + #ifdef __cplusplus } #endif diff --git a/src/intel/tools/gen_batch_decoder.c b/src/intel/tools/gen_batch_decoder.c new file mode 100644 index 00000000000..df5c3f84a8d --- /dev/null +++ b/src/intel/tools/gen_batch_decoder.c @@ -0,0 +1,258 @@ +/* + * Copyright © 2017 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 "common/gen_decoder.h" +#include "gen_disasm.h" + +#include <string.h> + +void +gen_batch_decode_ctx_init(struct gen_batch_decode_ctx *ctx, + const struct gen_device_info *devinfo, + FILE *fp, enum gen_batch_decode_flags flags, + const char *xml_path, + struct gen_batch_decode_bo (*get_bo)(void *, + uint64_t), + void *user_data) +{ + memset(ctx, 0, sizeof(*ctx)); + + ctx->get_bo = get_bo; + ctx->user_data = user_data; + ctx->fp = fp; + ctx->flags = flags; + + if (xml_path == NULL) + ctx->spec = gen_spec_load(devinfo); + else + ctx->spec = gen_spec_load_from_path(devinfo, xml_path); + ctx->disasm = gen_disasm_create(devinfo); +} + +void +gen_batch_decode_ctx_finish(struct gen_batch_decode_ctx *ctx) +{ + gen_spec_destroy(ctx->spec); + gen_disasm_destroy(ctx->disasm); +} + +#define CSI "\e[" +#define BLUE_HEADER CSI "0;44m" +#define GREEN_HEADER CSI "1;42m" +#define NORMAL CSI "0m" + +#define ARRAY_LENGTH(a) (sizeof (a) / sizeof (a)[0]) + +static void +ctx_print_group(struct gen_batch_decode_ctx *ctx, + struct gen_group *group, + uint64_t address, const void *map) +{ + gen_print_group(ctx->fp, group, address, map, 0, + (ctx->flags & GEN_BATCH_DECODE_IN_COLOR) != 0); +} + +static struct gen_batch_decode_bo +ctx_get_bo(struct gen_batch_decode_ctx *ctx, uint64_t addr) +{ + if (gen_spec_get_gen(ctx->spec) >= gen_make_gen(8,0)) { + /* On Broadwell and above, we have 48-bit addresses which consume two + * dwords. Some packets require that these get stored in a "canonical + * form" which means that bit 47 is sign-extended through the upper + * bits. In order to correctly handle those aub dumps, we need to mask + * off the top 16 bits. + */ + addr &= (~0ull >> 16); + } + + struct gen_batch_decode_bo bo = ctx->get_bo(ctx->user_data, addr); + + if (gen_spec_get_gen(ctx->spec) >= gen_make_gen(8,0)) + bo.addr &= (~0ull >> 16); + + /* We may actually have an offset into the bo */ + if (bo.map != NULL) { + assert(bo.addr <= addr); + uint64_t offset = addr - bo.addr; + bo.map += offset; + bo.addr += offset; + bo.size -= offset; + } + + return bo; +} + +static void +handle_state_base_address(struct gen_batch_decode_ctx *ctx, const uint32_t *p) +{ + struct gen_group *inst = gen_spec_find_instruction(ctx->spec, p); + + struct gen_field_iterator iter; + gen_field_iterator_init(&iter, inst, p, 0, false); + + do { + if (strcmp(iter.name, "Surface State Base Address") == 0) { + ctx->surface_base = ctx_get_bo(ctx, iter.raw_value); + } else if (strcmp(iter.name, "Dynamic State Base Address") == 0) { + ctx->dynamic_base = ctx_get_bo(ctx, iter.raw_value); + } else if (strcmp(iter.name, "Instruction Base Address") == 0) { + ctx->instruction_base = ctx_get_bo(ctx, iter.raw_value); + } + } while (gen_field_iterator_next(&iter)); +} + +struct custom_decoder { + const char *cmd_name; + void (*decode)(struct gen_batch_decode_ctx *ctx, const uint32_t *p); +} custom_decoders[] = { + { "STATE_BASE_ADDRESS", handle_state_base_address }, +}; + +static inline uint64_t +get_address(struct gen_spec *spec, const uint32_t *p) +{ + /* Addresses are always guaranteed to be page-aligned and sometimes + * hardware packets have extra stuff stuffed in the bottom 12 bits. + */ + uint64_t addr = p[0] & ~0xfffu; + + if (gen_spec_get_gen(spec) >= gen_make_gen(8,0)) { + /* On Broadwell and above, we have 48-bit addresses which consume two + * dwords. Some packets require that these get stored in a "canonical + * form" which means that bit 47 is sign-extended through the upper + * bits. In order to correctly handle those aub dumps, we need to mask + * off the top 16 bits. + */ + addr |= ((uint64_t)p[1] & 0xffff) << 32; + } + + return addr; +} + +void +gen_print_batch(struct gen_batch_decode_ctx *ctx, + const uint32_t *batch, uint32_t batch_size, + uint64_t batch_addr) +{ + const uint32_t *p, *end = batch + batch_size; + int length; + struct gen_group *inst; + + for (p = batch; p < end; p += length) { + inst = gen_spec_find_instruction(ctx->spec, p); + length = gen_group_get_length(inst, p); + assert(inst == NULL || length > 0); + length = MAX2(1, length); + if (inst == NULL) { + fprintf(ctx->fp, "unknown instruction %08x\n", p[0]); + continue; + } + + const char *color, *reset_color; + uint64_t offset; + + const char *inst_name = gen_group_get_name(inst); + if (ctx->flags & GEN_BATCH_DECODE_IN_COLOR) { + reset_color = NORMAL; + if (ctx->flags & GEN_BATCH_DECODE_FULL) { + if (strcmp(inst_name, "MI_BATCH_BUFFER_START") == 0 || + strcmp(inst_name, "MI_BATCH_BUFFER_END") == 0) + color = GREEN_HEADER; + else + color = BLUE_HEADER; + } else { + color = NORMAL; + } + } else { + color = ""; + reset_color = ""; + } + + if (ctx->flags & GEN_BATCH_DECODE_OFFSETS) + offset = batch_addr + ((char *)p - (char *)batch); + else + offset = 0; + + fprintf(ctx->fp, "%s0x%08"PRIx64": 0x%08x: %-80s%s\n", + color, offset, p[0], inst_name, reset_color); + + if (ctx->flags & GEN_BATCH_DECODE_FULL) { + ctx_print_group(ctx, inst, offset, p); + + for (int i = 0; i < ARRAY_LENGTH(custom_decoders); i++) { + if (strcmp(inst_name, custom_decoders[i].cmd_name) == 0) { + custom_decoders[i].decode(ctx, p); + break; + } + } + } + + if (strcmp(inst_name, "MI_BATCH_BUFFER_START") == 0) { + struct gen_batch_decode_bo next_batch; + bool second_level; + struct gen_field_iterator iter; + gen_field_iterator_init(&iter, inst, p, 0, false); + do { + if (strcmp(iter.name, "Batch Buffer Start Address") == 0) { + next_batch = ctx_get_bo(ctx, iter.raw_value); + } else if (strcmp(iter.name, "Second Level Batch Buffer") == 0) { + second_level = iter.raw_value; + } + } while (gen_field_iterator_next(&iter)); + + if (next_batch.map == NULL) { + fprintf(ctx->fp, "Secondary batch at 0x%08"PRIx64" unavailable", + next_batch.addr); + } + + if (second_level) { + /* MI_BATCH_BUFFER_START with "2nd Level Batch Buffer" set acts + * like a subroutine call. Commands that come afterwards get + * processed once the 2nd level batch buffer returns with + * MI_BATCH_BUFFER_END. + */ + if (next_batch.map) { + gen_print_batch(ctx, next_batch.map, next_batch.size, + next_batch.addr); + } + } else { + /* MI_BATCH_BUFFER_START with "2nd Level Batch Buffer" unset acts + * like a goto. Nothing after it will ever get processed. In + * order to prevent the recursion from growing, we just reset the + * loop and continue; + */ + if (next_batch.map) { + p = next_batch.map; + end = next_batch.map + next_batch.size; + length = 0; + continue; + } else { + /* Nothing we can do */ + break; + } + } + } else if (strcmp(inst_name, "MI_BATCH_BUFFER_END") == 0) { + break; + } + } +} |