[Mesa-dev] [PATCH 10/15] radeonsi: add an IB parser
Marek Olšák
maraeo at gmail.com
Sun Aug 23 05:04:56 PDT 2015
From: Marek Olšák <marek.olsak at amd.com>
---
src/gallium/drivers/radeonsi/si_debug.c | 245 ++++++++++++++++++++++++++++++++
1 file changed, 245 insertions(+)
diff --git a/src/gallium/drivers/radeonsi/si_debug.c b/src/gallium/drivers/radeonsi/si_debug.c
index fa2ec03..d692547 100644
--- a/src/gallium/drivers/radeonsi/si_debug.c
+++ b/src/gallium/drivers/radeonsi/si_debug.c
@@ -27,6 +27,7 @@
#include "si_pipe.h"
#include "si_shader.h"
#include "sid.h"
+#include "sid_tables.h"
static void si_dump_shader(struct si_shader_selector *sel, const char *name,
@@ -40,6 +41,243 @@ static void si_dump_shader(struct si_shader_selector *sel, const char *name,
fprintf(f, "%s\n\n", sel->current->binary.disasm_string);
}
+/* Parsed IBs are difficult to read without colors. Use "less -R file" to
+ * read them, or use "aha -b -f file" to convert them to html.
+ */
+#define COLOR_RESET "\033[0m"
+#define COLOR_RED "\033[31m"
+#define COLOR_GREEN "\033[1;32m"
+#define COLOR_YELLOW "\033[1;33m"
+#define COLOR_CYAN "\033[1;36m"
+
+#define INDENT_PKT 8
+
+static void print_spaces(FILE *f, unsigned num)
+{
+ fprintf(f, "%*s", num, "");
+}
+
+static void print_value(FILE *file, uint32_t value, int bits)
+{
+ /* Guess if it's int or float */
+ if (value <= (1 << 15))
+ fprintf(file, "%u\n", value);
+ else {
+ float f = uif(value);
+
+ if (fabs(f) < 100000 && f*10 == floor(f*10))
+ fprintf(file, "%.1ff\n", f);
+ else
+ /* Don't print more leading zeros than there are bits. */
+ fprintf(file, "0x%0*x\n", bits / 4, value);
+ }
+}
+
+static void print_named_value(FILE *file, const char *name, uint32_t value,
+ int bits)
+{
+ print_spaces(file, INDENT_PKT);
+ fprintf(file, COLOR_YELLOW "%s" COLOR_RESET " <- ", name);
+ print_value(file, value, bits);
+}
+
+static void si_dump_reg(FILE *file, unsigned offset, uint32_t value,
+ uint32_t field_mask)
+{
+ int r, f;
+
+ for (r = 0; r < ARRAY_SIZE(reg_table); r++) {
+ const struct si_reg *reg = ®_table[r];
+
+ if (reg->offset == offset) {
+ bool first_field = true;
+
+ print_spaces(file, INDENT_PKT);
+ fprintf(file, COLOR_YELLOW "%s" COLOR_RESET " <- ",
+ reg->name);
+
+ if (!reg->num_fields) {
+ print_value(file, value, 32);
+ return;
+ }
+
+ for (f = 0; f < reg->num_fields; f++) {
+ const struct si_field *field = ®->fields[f];
+ uint32_t val = (value & field->mask) >>
+ (ffs(field->mask) - 1);
+
+ if (!(field->mask & field_mask))
+ continue;
+
+ /* Indent the field. */
+ if (!first_field)
+ print_spaces(file,
+ INDENT_PKT + strlen(reg->name) + 4);
+
+ /* Print the field. */
+ fprintf(file, "%s = ", field->name);
+
+ if (val < field->num_values && field->values[val])
+ fprintf(file, "%s\n", field->values[val]);
+ else
+ print_value(file, val,
+ util_bitcount(field->mask));
+
+ first_field = false;
+ }
+ return;
+ }
+ }
+
+ fprintf(file, COLOR_YELLOW "0x%05x" COLOR_RESET " = 0x%08x", offset, value);
+}
+
+static void si_parse_set_reg_packet(FILE *f, uint32_t *ib, unsigned count,
+ unsigned reg_offset)
+{
+ unsigned reg = (ib[1] << 2) + reg_offset;
+ int i;
+
+ for (i = 0; i < count; i++)
+ si_dump_reg(f, reg + i*4, ib[2+i], ~0);
+}
+
+static uint32_t *si_parse_packet3(FILE *f, uint32_t *ib, int *num_dw)
+{
+ unsigned count = PKT_COUNT_G(ib[0]);
+ unsigned op = PKT3_IT_OPCODE_G(ib[0]);
+ const char *predicate = PKT3_PREDICATE(ib[0]) ? "(predicate)" : "";
+ int i;
+
+ /* Print the name first. */
+ for (i = 0; i < ARRAY_SIZE(packet3_table); i++)
+ if (packet3_table[i].op == op)
+ break;
+
+ if (i < ARRAY_SIZE(packet3_table))
+ if (op == PKT3_SET_CONTEXT_REG ||
+ op == PKT3_SET_CONFIG_REG ||
+ op == PKT3_SET_UCONFIG_REG ||
+ op == PKT3_SET_SH_REG)
+ fprintf(f, COLOR_CYAN "%s%s" COLOR_CYAN ":\n",
+ packet3_table[i].name, predicate);
+ else
+ fprintf(f, COLOR_GREEN "%s%s" COLOR_RESET ":\n",
+ packet3_table[i].name, predicate);
+ else
+ fprintf(f, COLOR_RED "PKT3_UNKNOWN 0x%x%s" COLOR_RESET ":\n",
+ op, predicate);
+
+ /* Print the contents. */
+ switch (op) {
+ case PKT3_SET_CONTEXT_REG:
+ si_parse_set_reg_packet(f, ib, count, SI_CONTEXT_REG_OFFSET);
+ break;
+ case PKT3_SET_CONFIG_REG:
+ si_parse_set_reg_packet(f, ib, count, SI_CONFIG_REG_OFFSET);
+ break;
+ case PKT3_SET_UCONFIG_REG:
+ si_parse_set_reg_packet(f, ib, count, CIK_UCONFIG_REG_OFFSET);
+ break;
+ case PKT3_SET_SH_REG:
+ si_parse_set_reg_packet(f, ib, count, SI_SH_REG_OFFSET);
+ break;
+ case PKT3_DRAW_PREAMBLE:
+ si_dump_reg(f, R_030908_VGT_PRIMITIVE_TYPE, ib[1], ~0);
+ si_dump_reg(f, R_028AA8_IA_MULTI_VGT_PARAM, ib[2], ~0);
+ si_dump_reg(f, R_028B58_VGT_LS_HS_CONFIG, ib[3], ~0);
+ break;
+ case PKT3_ACQUIRE_MEM:
+ si_dump_reg(f, R_0301F0_CP_COHER_CNTL, ib[1], ~0);
+ si_dump_reg(f, R_0301F4_CP_COHER_SIZE, ib[2], ~0);
+ si_dump_reg(f, R_030230_CP_COHER_SIZE_HI, ib[3], ~0);
+ si_dump_reg(f, R_0301F8_CP_COHER_BASE, ib[4], ~0);
+ si_dump_reg(f, R_0301E4_CP_COHER_BASE_HI, ib[5], ~0);
+ print_named_value(f, "POLL_INTERVAL", ib[6], 16);
+ break;
+ case PKT3_SURFACE_SYNC:
+ si_dump_reg(f, R_0085F0_CP_COHER_CNTL, ib[1], ~0);
+ si_dump_reg(f, R_0085F4_CP_COHER_SIZE, ib[2], ~0);
+ si_dump_reg(f, R_0085F8_CP_COHER_BASE, ib[3], ~0);
+ print_named_value(f, "POLL_INTERVAL", ib[4], 16);
+ break;
+ case PKT3_EVENT_WRITE:
+ si_dump_reg(f, R_028A90_VGT_EVENT_INITIATOR, ib[1],
+ S_028A90_EVENT_TYPE(~0));
+ print_named_value(f, "EVENT_INDEX", (ib[1] >> 8) & 0xf, 4);
+ print_named_value(f, "INV_L2", (ib[1] >> 20) & 0x1, 1);
+ if (count > 0) {
+ print_named_value(f, "ADDRESS_LO", ib[2], 32);
+ print_named_value(f, "ADDRESS_HI", ib[3], 16);
+ }
+ break;
+ case PKT3_DRAW_INDEX_AUTO:
+ si_dump_reg(f, R_030930_VGT_NUM_INDICES, ib[1], ~0);
+ si_dump_reg(f, R_0287F0_VGT_DRAW_INITIATOR, ib[2], ~0);
+ break;
+ case PKT3_DRAW_INDEX_2:
+ si_dump_reg(f, R_028A78_VGT_DMA_MAX_SIZE, ib[1], ~0);
+ si_dump_reg(f, R_0287E8_VGT_DMA_BASE, ib[2], ~0);
+ si_dump_reg(f, R_0287E4_VGT_DMA_BASE_HI, ib[3], ~0);
+ si_dump_reg(f, R_030930_VGT_NUM_INDICES, ib[4], ~0);
+ si_dump_reg(f, R_0287F0_VGT_DRAW_INITIATOR, ib[5], ~0);
+ break;
+ case PKT3_INDEX_TYPE:
+ si_dump_reg(f, R_028A7C_VGT_DMA_INDEX_TYPE, ib[1], ~0);
+ break;
+ case PKT3_NUM_INSTANCES:
+ si_dump_reg(f, R_030934_VGT_NUM_INSTANCES, ib[1], ~0);
+ break;
+ case PKT3_NOP:
+ if (ib[0] == 0xffff1000) {
+ count = -1; /* One dword NOP. */
+ break;
+ }
+ /* fall through, print all dwords */
+ default:
+ for (i = 0; i < count+1; i++) {
+ print_spaces(f, INDENT_PKT);
+ fprintf(f, "0x%08x\n", ib[1+i]);
+ }
+ }
+
+ ib += count + 2;
+ *num_dw -= count + 2;
+ return ib;
+}
+
+static void si_parse_ib(FILE *f, uint32_t *ib, int num_dw)
+{
+ fprintf(f, "------------------ IB begin ------------------\n");
+
+ while (num_dw > 0) {
+ unsigned type = PKT_TYPE_G(ib[0]);
+
+ switch (type) {
+ case 3:
+ ib = si_parse_packet3(f, ib, &num_dw);
+ break;
+ case 2:
+ /* type-2 nop */
+ if (ib[0] == 0x80000000) {
+ fprintf(f, COLOR_GREEN "NOP (type 2)" COLOR_RESET "\n");
+ ib++;
+ break;
+ }
+ /* fall through */
+ default:
+ fprintf(f, "Unknown packet type %i\n", type);
+ return;
+ }
+ }
+
+ fprintf(f, "------------------- IB end -------------------\n");
+ if (num_dw < 0) {
+ printf("Packet ends after the end of IB.\n");
+ exit(0);
+ }
+}
+
static void si_dump_debug_state(struct pipe_context *ctx, FILE *f,
unsigned flags)
{
@@ -50,6 +288,13 @@ static void si_dump_debug_state(struct pipe_context *ctx, FILE *f,
si_dump_shader(sctx->tes_shader, "Tessellation evaluation", f);
si_dump_shader(sctx->gs_shader, "Geometry", f);
si_dump_shader(sctx->ps_shader, "Fragment", f);
+
+ if (sctx->last_ib) {
+ si_parse_ib(f, sctx->last_ib, sctx->last_ib_dw_size);
+ free(sctx->last_ib); /* dump only once */
+ sctx->last_ib = NULL;
+ }
+
fprintf(f, "Done.\n");
}
--
2.1.4
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