inteltool: dump gfx registers.

Useful for autoport and other gfx-related developpement.

Change-Id: I1fc0952bc30ab15cd39a4f0c00649714dcf318f3
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/10276
Tested-by: build bot (Jenkins)
Reviewed-by: Philipp Deppenwiese <zaolin@das-labor.org>

util/inteltool/Makefile

@@ -27,7 +27,7 @@ PREFIX  ?= /usr/local
 CFLAGS  ?= -O2 -g -Wall -W
 LDFLAGS += -lpci -lz
 
-OBJS = inteltool.o cpu.o gpio.o rootcmplx.o powermgt.o memory.o pcie.o amb.o ivy_memory.o spi.o
+OBJS = inteltool.o cpu.o gpio.o rootcmplx.o powermgt.o memory.o pcie.o amb.o ivy_memory.o spi.o gfx.o
 
 OS_ARCH	= $(shell uname)
 ifeq ($(OS_ARCH), Darwin)

util/inteltool/gfx.c

@@ -0,0 +1,52 @@
+/*
+ * inteltool - dump all registers on an Intel CPU + chipset based system.
+ *
+ * Copyright (C) 2008-2010 by coresystems GmbH
+ * Copyright (C) 2012 Anton Kochkov
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include "inteltool.h"
+
+#define MMIO_SIZE 0x100000
+
+int print_gfx(struct pci_dev *gfx)
+{
+	u64 mmio_phys;
+	u8 *mmio;
+	u32 i;
+	if (!gfx) {
+		printf ("No IGD found\n");
+		return 0;
+	}
+	printf("\n============= IGD ==============\n\n");
+	mmio_phys = gfx->base_addr[0] & ~0x7ULL;
+	printf("IGD MMIO = 0x%08llx (MEM)\n\n", (unsigned long long)mmio_phys);
+	mmio = map_physical(mmio_phys, MMIO_SIZE);
+	if (mmio == NULL) {
+		perror("Error mapping MMIO");
+		exit(1);
+	}
+	for (i = 0; i < MMIO_SIZE; i += 4) {
+		if (*(uint32_t *)(mmio + i))
+			printf("0x%06x: 0x%08x\n", i, *(uint32_t *)(mmio + i));
+	}
+	unmap_physical((void *)mmio, MMIO_SIZE);
+	return 0;
+
+}

util/inteltool/inteltool.c

@@ -217,6 +217,7 @@ void print_usage(const char *name)
 	     "   -v | --version:                   print the version\n"
 	     "   -h | --help:                      print this help\n\n"
 	     "   -s | --spi:                       dump southbridge spi and bios_cntrl registers\n"
+	     "   -f | --gfx:                       dump graphics registers\n"
 	     "   -g | --gpio:                      dump southbridge GPIO registers\n"
 	     "   -G | --gpio-diffs:                show GPIO differences from defaults\n"
 	     "   -r | --rcba:                      dump southbridge RCBA registers\n"
@@ -235,16 +236,16 @@ void print_usage(const char *name)
 int main(int argc, char *argv[])
 {
 	struct pci_access *pacc;
-	struct pci_dev *sb = NULL, *nb, *dev;
+	struct pci_dev *sb = NULL, *nb, *gfx = NULL, *dev;
 	int i, opt, option_index = 0;
 	unsigned int id;
 
-	char *sbname = "unknown", *nbname = "unknown";
+	char *sbname = "unknown", *nbname = "unknown", *gfxname = "unknown";
 
 	int dump_gpios = 0, dump_mchbar = 0, dump_rcba = 0;
 	int dump_pmbase = 0, dump_epbar = 0, dump_dmibar = 0;
 	int dump_pciexbar = 0, dump_coremsrs = 0, dump_ambs = 0;
-	int dump_spi = 0;
+	int dump_spi = 0, dump_gfx = 0;
 	int show_gpio_diffs = 0;
 
 	static struct option long_options[] = {
@@ -262,10 +263,11 @@ int main(int argc, char *argv[])
 		{"ambs", 0, 0, 'A'},
 		{"spi", 0, 0, 's'},
 		{"all", 0, 0, 'a'},
+		{"gfx", 0, 0, 'f'},
 		{0, 0, 0, 0}
 	};
 
-	while ((opt = getopt_long(argc, argv, "vh?gGrpmedPMaAs",
+	while ((opt = getopt_long(argc, argv, "vh?gGrpmedPMaAsf",
                                   long_options, &option_index)) != EOF) {
 		switch (opt) {
 		case 'v':
@@ -275,6 +277,9 @@ int main(int argc, char *argv[])
 		case 'g':
 			dump_gpios = 1;
 			break;
+		case 'f':
+			dump_gfx = 1;
+			break;
 		case 'G':
 			show_gpio_diffs = 1;
 			break;
@@ -311,6 +316,7 @@ int main(int argc, char *argv[])
 			dump_coremsrs = 1;
 			dump_ambs = 1;
 			dump_spi = 1;
+			dump_gfx = 1;
 			break;
 		case 'A':
 			dump_ambs = 1;
@@ -390,6 +396,15 @@ int main(int argc, char *argv[])
 		exit(1);
 	}
 
+	gfx = pci_get_dev(pacc, 0, 0, 0x02, 0);
+
+	if (gfx) {
+		pci_fill_info(gfx, PCI_FILL_IDENT|PCI_FILL_BASES|PCI_FILL_SIZES|PCI_FILL_CLASS);
+
+		if (gfx->vendor_id != PCI_VENDOR_ID_INTEL)
+			gfx = 0;
+	}
+
 	id = cpuid(1);
 
 	/* Intel has suggested applications to display the family of a CPU as
@@ -409,6 +424,11 @@ int main(int argc, char *argv[])
 	for (i = 0; i < ARRAY_SIZE(supported_chips_list); i++)
 		if (sb->device_id == supported_chips_list[i].device_id)
 			sbname = supported_chips_list[i].name;
+	if (gfx) {
+		for (i = 0; i < ARRAY_SIZE(supported_chips_list); i++)
+			if (gfx->device_id == supported_chips_list[i].device_id)
+				gfxname = supported_chips_list[i].name;
+	}
 
 	printf("Northbridge: %04x:%04x (%s)\n",
 		nb->vendor_id, nb->device_id, nbname);
@@ -416,6 +436,11 @@ int main(int argc, char *argv[])
 	printf("Southbridge: %04x:%04x (%s)\n",
 		sb->vendor_id, sb->device_id, sbname);
 
+	if (gfx) {
+		printf("IGD: %04x:%04x (%s)\n",
+		       gfx->vendor_id, gfx->device_id, gfxname);
+	}
+
 	/* Now do the deed */
 
 	if (dump_gpios) {
@@ -468,6 +493,11 @@ int main(int argc, char *argv[])
 	if (dump_spi) {
 		print_spi(sb);
 	}
+
+	if (dump_gfx) {
+		print_gfx(gfx);
+	}
+
 	/* Clean up */
 	pci_free_dev(nb);
 	// pci_free_dev(sb); // TODO: glibc detected "double free or corruption"

util/inteltool/inteltool.h

@@ -207,4 +207,5 @@ int print_dmibar(struct pci_dev *nb);
 int print_pciexbar(struct pci_dev *nb);
 int print_ambs(struct pci_dev *nb, struct pci_access *pacc);
 int print_spi(struct pci_dev *sb);
+int print_gfx(struct pci_dev *gfx);
 void ivybridge_dump_timings(void);