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Diffstat (limited to 'src/solx_devfs.c')
-rw-r--r--src/solx_devfs.c41
1 files changed, 21 insertions, 20 deletions
diff --git a/src/solx_devfs.c b/src/solx_devfs.c
index 4069dc2..3eefefb 100644
--- a/src/solx_devfs.c
+++ b/src/solx_devfs.c
@@ -911,7 +911,7 @@ pci_device_solx_devfs_probe( struct pci_device * dev )
}
/**
- * Map a memory region for a device using /dev/xsvc.
+ * Map a memory region for a device using /dev/xsvc (x86) or fb device (sparc)
*
* \param dev Device whose memory region is to be mapped.
* \param map Parameters of the mapping that is to be created.
@@ -927,39 +927,40 @@ pci_device_solx_devfs_map_range(struct pci_device *dev,
? (PROT_READ | PROT_WRITE) : PROT_READ;
int err = 0;
-#ifdef __sparc
- char map_dev[128];
+ const char *map_dev;
int map_fd;
- if (MAPPING_DEV_PATH(dev))
- snprintf(map_dev, sizeof (map_dev), "%s%s", "/devices", MAPPING_DEV_PATH(dev));
- else
- strcpy (map_dev, "/dev/fb0");
+#ifdef __sparc
+ char map_dev_buf[128];
- if ((map_fd = open(map_dev, O_RDWR | O_CLOEXEC)) < 0) {
- err = errno;
- (void) fprintf(stderr, "can not open %s: %s\n", map_dev,
- strerror(errno));
- return err;
+ if (MAPPING_DEV_PATH(dev)) {
+ snprintf(map_dev_buf, sizeof (map_dev_buf), "%s%s",
+ "/devices", MAPPING_DEV_PATH(dev));
+ map_dev = map_dev_buf;
}
+ else
+ map_dev = "/dev/fb0";
- map->memory = mmap(NULL, map->size, prot, MAP_SHARED, map_fd, map->base);
+ map_fd = -1;
#else
/*
- * Still used xsvc to do the user space mapping
+ * Still uses xsvc to do the user space mapping on x86/x64,
+ * caches open fd across multiple calls.
*/
- if (xsvc_fd < 0) {
- if ((xsvc_fd = open("/dev/xsvc", O_RDWR | O_CLOEXEC)) < 0) {
+ map_dev = "/dev/xsvc";
+ map_fd = xsvc_fd;
+#endif
+
+ if (map_fd < 0) {
+ if ((map_fd = open(map_dev, O_RDWR | O_CLOEXEC)) < 0) {
err = errno;
- (void) fprintf(stderr, "can not open /dev/xsvc: %s\n",
+ (void) fprintf(stderr, "can not open %s: %s\n", map_dev,
strerror(errno));
return err;
}
}
- map->memory = mmap(NULL, map->size, prot, MAP_SHARED, xsvc_fd, map->base);
-#endif
-
+ map->memory = mmap(NULL, map->size, prot, MAP_SHARED, map_fd, map->base);
if (map->memory == MAP_FAILED) {
err = errno;