[coreboot-gerrit] Change in coreboot[master]: util/pmh7tool: support OpenBSD

[Evgeny Zinoviev (Code Review)]

Evgeny Zinoviev has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/38349 )

Change subject: util/pmh7tool: support OpenBSD
......................................................................

util/pmh7tool: support OpenBSD

Change-Id: I8aeee4009fb38204b1bdbe6712d759ab17b2cbd9
Signed-off-by: Evgeny Zinoviev 
---
M util/pmh7tool/Makefile
M util/pmh7tool/pmh7tool.c
2 files changed, 33 insertions(+), 3 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/49/38349/1

diff --git a/util/pmh7tool/Makefile b/util/pmh7tool/Makefile
index 034ed40..0df7984 100644
--- a/util/pmh7tool/Makefile
+++ b/util/pmh7tool/Makefile
@@ -19,6 +19,10 @@
 INSTALL = /usr/bin/env install
 PREFIX	= /usr/local

+ifeq ($(shell uname -s 2>/dev/null), OpenBSD)
+LDFLAGS = -lamd64
+endif
+
 all: $(PROGRAM)

$(PROGRAM): pmh7tool.o
diff --git a/util/pmh7tool/pmh7tool.c b/util/pmh7tool/pmh7tool.c
index f03d97e..b268f9b 100644
--- a/util/pmh7tool/pmh7tool.c
+++ b/util/pmh7tool/pmh7tool.c
@@ -16,13 +16,36 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <getopt.h>
+#if !defined __OpenBSD__
 #include <sys/io.h>
+#endif
 #include <errno.h>
 #include <string.h>
 #include <unistd.h>
 #include <stdint.h>
 #include "pmh7tool.h"

+#if defined __OpenBSD__
+#include <machine/sysarch.h>
+static uint8_t inb(unsigned port)
+{
+	uint8_t data;
+	__asm volatile("inb %w1,%0" : "=a" (data) : "d" (port));
+	return data;
+}
+static __inline void outb(uint8_t data, unsigned port)
+{
+	__asm volatile("outb %0,%w1" : : "a" (data), "d" (port));
+}
+
+#if defined __i386__
+#define iopl i386_iopl
+#else
+#define iopl amd64_iopl
+#endif
+
+#endif
+
 uint8_t pmh7_register_read(uint16_t reg)
 {
    outb(reg & 0xff, EC_LENOVO_PMH7_ADDR_L);
@@ -85,7 +108,7 @@
 int main(int argc, char *argv[])
 {
    enum action act = HELP;
-	int opt, option_index = 0;
+	int i, opt, option_index = 0;
    long input_addr = 0, input_data = 0;

static struct option long_options[] = {
@@ -185,15 +208,18 @@
    	fprintf(stderr, "You must be root.\n");
    	exit(1);
    }
-
+#if !defined __OpenBSD__
    if (ioperm(EC_LENOVO_PMH7_BASE, 0x10, 1)) {
+#else
+    if (iopl(3)) {
+#endif
    	fprintf(stderr, "ioperm: %s\n", strerror(errno));
    	exit(1);
    }

switch (act) {
    case DUMP:
-		for (int i = 0; i < 0x200; i++) {
+		for (i = 0; i < 0x200; i++) {
    		if ((i % 0x10) == 0) {
    			if (i != 0)
    				printf("\n");