radeonsi: add an IB parser

Acked-by: Christian König <[email protected]>
Acked-by: Alex Deucher <[email protected]>

1 files changed, 245 insertions, 0 deletions

diff --git a/src/gallium/drivers/radeonsi/si_debug.c b/src/gallium/drivers/radeonsi/si_debug.c
index fa2ec0342ce..d692547ee82 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 = &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 = &reg->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");
 }