viatool: Add utility to read various configuration bits on VIA systems

viatool is a utility for extracting useful for extracting certain configuration
bits on VIA chipsets and CPUs. It is a fork of inteltool.

viatool is currently focused on "quirks". Quirks are device configurations that
cannot be accessed directly. They are implemented as hierarchical configurations
in the PCI or memory address spaces (index/data register pairs). Such
configurations refer to hardware parameters that are board specific. Those
parameters would otherwise be difficult to extract from a system running the
vendor's firmware.

viatool also preserves inteltool's MSR dumps. VIA CPU and Intel CPU MSRs are
nearly identical.

Change-Id: Icbd39eaf7c7da5568732d77dbf2aed135f835754
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/1430
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

1 files changed, 78 insertions, 0 deletions

diff --git a/util/viatool/viatool.h b/util/viatool/viatool.h
new file mode 100644
index 0000000000..ed90112c18
--- /dev/null
+++ b/util/viatool/viatool.h
@@ -0,0 +1,78 @@
+/*
+ * viatool - dump all registers on an Intel CPU + chipset based system.
+ *
+ * Copyright (C) 2008-2010 by coresystems GmbH
+ * Copyright (C) 2009 Carl-Daniel Hailfinger
+ * Copyright (C) 2013 Alexandru Gagniuc
+ *
+ * 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 <stdint.h>
+
+#ifndef _VIATOOL_H
+#define _VIATOOL_H
+
+#if defined(__GLIBC__)
+#include <sys/io.h>
+#endif
+#if (defined(__MACH__) && defined(__APPLE__))
+/* DirectHW is available here: http://www.coreboot.org/DirectHW */
+#define __DARWIN__
+#include <DirectHW/DirectHW.h>
+#endif
+#include <pci/pci.h>
+
+/* This #include is needed for freebsd_{rd,wr}msr. */
+#if defined(__FreeBSD__)
+#include <machine/cpufunc.h>
+#endif
+
+#include <stdlib.h>
+
+#define VIATOOL_VERSION "1.0"
+
+/* Tested chipsets: */
+#define PCI_VENDOR_ID_VIA			0x1106
+#define PCI_DEVICE_ID_VIA_VX900			0x0410
+#define PCI_DEVICE_ID_VIA_VX900_SATA		0x9001
+#define PCI_DEVICE_ID_VIA_VX900_LPC		0x8410
+
+
+#define ARRAY_SIZE(a) ((int)(sizeof(a) / sizeof((a)[0])))
+
+#if !defined(__DARWIN__) && !defined(__FreeBSD__)
+typedef struct { uint32_t hi, lo; } msr_t;
+#endif
+#if defined (__FreeBSD__)
+/* FreeBSD already has conflicting definitions for wrmsr/rdmsr. */
+#undef rdmsr
+#undef wrmsr
+#define rdmsr freebsd_rdmsr
+#define wrmsr freebsd_wrmsr
+typedef struct { uint32_t hi, lo; } msr_t;
+msr_t freebsd_rdmsr(int addr);
+int freebsd_wrmsr(int addr, msr_t msr);
+#endif
+typedef struct { uint16_t addr; int size; char *name; } io_register_t;
+
+void *map_physical(uint64_t phys_addr, size_t len);
+void unmap_physical(void *virt_addr, size_t len);
+
+unsigned int cpuid(unsigned int op);
+int print_intel_core_msrs(void);
+int print_quirks_north(struct pci_dev *nb, struct pci_access *pacc);
+int print_quirks_south(struct pci_dev *sb, struct pci_access *pacc);
+
+#endif /* _VIATOOL_H */