[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/drivers/rapidio/rio-sysfs.c b/src/kernel/linux/v4.14/drivers/rapidio/rio-sysfs.c
new file mode 100644
index 0000000..73e4b40
--- /dev/null
+++ b/src/kernel/linux/v4.14/drivers/rapidio/rio-sysfs.c
@@ -0,0 +1,371 @@
+/*
+ * RapidIO sysfs attributes and support
+ *
+ * Copyright 2005 MontaVista Software, Inc.
+ * Matt Porter <mporter@kernel.crashing.org>
+ *
+ * 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; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/rio.h>
+#include <linux/rio_drv.h>
+#include <linux/stat.h>
+#include <linux/capability.h>
+
+#include "rio.h"
+
+/* Sysfs support */
+#define rio_config_attr(field, format_string) \
+static ssize_t \
+field##_show(struct device *dev, struct device_attribute *attr, char *buf) \
+{ \
+ struct rio_dev *rdev = to_rio_dev(dev); \
+ \
+ return sprintf(buf, format_string, rdev->field); \
+} \
+static DEVICE_ATTR_RO(field);
+
+rio_config_attr(did, "0x%04x\n");
+rio_config_attr(vid, "0x%04x\n");
+rio_config_attr(device_rev, "0x%08x\n");
+rio_config_attr(asm_did, "0x%04x\n");
+rio_config_attr(asm_vid, "0x%04x\n");
+rio_config_attr(asm_rev, "0x%04x\n");
+rio_config_attr(destid, "0x%04x\n");
+rio_config_attr(hopcount, "0x%02x\n");
+
+static ssize_t routes_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct rio_dev *rdev = to_rio_dev(dev);
+ char *str = buf;
+ int i;
+
+ for (i = 0; i < RIO_MAX_ROUTE_ENTRIES(rdev->net->hport->sys_size);
+ i++) {
+ if (rdev->rswitch->route_table[i] == RIO_INVALID_ROUTE)
+ continue;
+ str +=
+ sprintf(str, "%04x %02x\n", i,
+ rdev->rswitch->route_table[i]);
+ }
+
+ return (str - buf);
+}
+static DEVICE_ATTR_RO(routes);
+
+static ssize_t lprev_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct rio_dev *rdev = to_rio_dev(dev);
+
+ return sprintf(buf, "%s\n",
+ (rdev->prev) ? rio_name(rdev->prev) : "root");
+}
+static DEVICE_ATTR_RO(lprev);
+
+static ssize_t lnext_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct rio_dev *rdev = to_rio_dev(dev);
+ char *str = buf;
+ int i;
+
+ if (rdev->pef & RIO_PEF_SWITCH) {
+ for (i = 0; i < RIO_GET_TOTAL_PORTS(rdev->swpinfo); i++) {
+ if (rdev->rswitch->nextdev[i])
+ str += sprintf(str, "%s\n",
+ rio_name(rdev->rswitch->nextdev[i]));
+ else
+ str += sprintf(str, "null\n");
+ }
+ }
+
+ return str - buf;
+}
+static DEVICE_ATTR_RO(lnext);
+
+static ssize_t modalias_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct rio_dev *rdev = to_rio_dev(dev);
+
+ return sprintf(buf, "rapidio:v%04Xd%04Xav%04Xad%04X\n",
+ rdev->vid, rdev->did, rdev->asm_vid, rdev->asm_did);
+}
+static DEVICE_ATTR_RO(modalias);
+
+static struct attribute *rio_dev_attrs[] = {
+ &dev_attr_did.attr,
+ &dev_attr_vid.attr,
+ &dev_attr_device_rev.attr,
+ &dev_attr_asm_did.attr,
+ &dev_attr_asm_vid.attr,
+ &dev_attr_asm_rev.attr,
+ &dev_attr_lprev.attr,
+ &dev_attr_destid.attr,
+ &dev_attr_modalias.attr,
+
+ /* Switch-only attributes */
+ &dev_attr_routes.attr,
+ &dev_attr_lnext.attr,
+ &dev_attr_hopcount.attr,
+ NULL,
+};
+
+static ssize_t
+rio_read_config(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *bin_attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct rio_dev *dev = to_rio_dev(kobj_to_dev(kobj));
+ unsigned int size = 0x100;
+ loff_t init_off = off;
+ u8 *data = (u8 *) buf;
+
+ /* Several chips lock up trying to read undefined config space */
+ if (capable(CAP_SYS_ADMIN))
+ size = RIO_MAINT_SPACE_SZ;
+
+ if (off >= size)
+ return 0;
+ if (off + count > size) {
+ size -= off;
+ count = size;
+ } else {
+ size = count;
+ }
+
+ if ((off & 1) && size) {
+ u8 val;
+ rio_read_config_8(dev, off, &val);
+ data[off - init_off] = val;
+ off++;
+ size--;
+ }
+
+ if ((off & 3) && size > 2) {
+ u16 val;
+ rio_read_config_16(dev, off, &val);
+ data[off - init_off] = (val >> 8) & 0xff;
+ data[off - init_off + 1] = val & 0xff;
+ off += 2;
+ size -= 2;
+ }
+
+ while (size > 3) {
+ u32 val;
+ rio_read_config_32(dev, off, &val);
+ data[off - init_off] = (val >> 24) & 0xff;
+ data[off - init_off + 1] = (val >> 16) & 0xff;
+ data[off - init_off + 2] = (val >> 8) & 0xff;
+ data[off - init_off + 3] = val & 0xff;
+ off += 4;
+ size -= 4;
+ }
+
+ if (size >= 2) {
+ u16 val;
+ rio_read_config_16(dev, off, &val);
+ data[off - init_off] = (val >> 8) & 0xff;
+ data[off - init_off + 1] = val & 0xff;
+ off += 2;
+ size -= 2;
+ }
+
+ if (size > 0) {
+ u8 val;
+ rio_read_config_8(dev, off, &val);
+ data[off - init_off] = val;
+ off++;
+ --size;
+ }
+
+ return count;
+}
+
+static ssize_t
+rio_write_config(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *bin_attr,
+ char *buf, loff_t off, size_t count)
+{
+ struct rio_dev *dev = to_rio_dev(kobj_to_dev(kobj));
+ unsigned int size = count;
+ loff_t init_off = off;
+ u8 *data = (u8 *) buf;
+
+ if (off >= RIO_MAINT_SPACE_SZ)
+ return 0;
+ if (off + count > RIO_MAINT_SPACE_SZ) {
+ size = RIO_MAINT_SPACE_SZ - off;
+ count = size;
+ }
+
+ if ((off & 1) && size) {
+ rio_write_config_8(dev, off, data[off - init_off]);
+ off++;
+ size--;
+ }
+
+ if ((off & 3) && (size > 2)) {
+ u16 val = data[off - init_off + 1];
+ val |= (u16) data[off - init_off] << 8;
+ rio_write_config_16(dev, off, val);
+ off += 2;
+ size -= 2;
+ }
+
+ while (size > 3) {
+ u32 val = data[off - init_off + 3];
+ val |= (u32) data[off - init_off + 2] << 8;
+ val |= (u32) data[off - init_off + 1] << 16;
+ val |= (u32) data[off - init_off] << 24;
+ rio_write_config_32(dev, off, val);
+ off += 4;
+ size -= 4;
+ }
+
+ if (size >= 2) {
+ u16 val = data[off - init_off + 1];
+ val |= (u16) data[off - init_off] << 8;
+ rio_write_config_16(dev, off, val);
+ off += 2;
+ size -= 2;
+ }
+
+ if (size) {
+ rio_write_config_8(dev, off, data[off - init_off]);
+ off++;
+ --size;
+ }
+
+ return count;
+}
+
+static struct bin_attribute rio_config_attr = {
+ .attr = {
+ .name = "config",
+ .mode = S_IRUGO | S_IWUSR,
+ },
+ .size = RIO_MAINT_SPACE_SZ,
+ .read = rio_read_config,
+ .write = rio_write_config,
+};
+
+static struct bin_attribute *rio_dev_bin_attrs[] = {
+ &rio_config_attr,
+ NULL,
+};
+
+static umode_t rio_dev_is_attr_visible(struct kobject *kobj,
+ struct attribute *attr, int n)
+{
+ struct rio_dev *rdev = to_rio_dev(kobj_to_dev(kobj));
+ umode_t mode = attr->mode;
+
+ if (!(rdev->pef & RIO_PEF_SWITCH) &&
+ (attr == &dev_attr_routes.attr ||
+ attr == &dev_attr_lnext.attr ||
+ attr == &dev_attr_hopcount.attr)) {
+ /*
+ * Hide switch-specific attributes for a non-switch device.
+ */
+ mode = 0;
+ }
+
+ return mode;
+}
+
+static const struct attribute_group rio_dev_group = {
+ .attrs = rio_dev_attrs,
+ .is_visible = rio_dev_is_attr_visible,
+ .bin_attrs = rio_dev_bin_attrs,
+};
+
+const struct attribute_group *rio_dev_groups[] = {
+ &rio_dev_group,
+ NULL,
+};
+
+static ssize_t bus_scan_store(struct bus_type *bus, const char *buf,
+ size_t count)
+{
+ long val;
+ int rc;
+
+ if (kstrtol(buf, 0, &val) < 0)
+ return -EINVAL;
+
+ if (val == RIO_MPORT_ANY) {
+ rc = rio_init_mports();
+ goto exit;
+ }
+
+ if (val < 0 || val >= RIO_MAX_MPORTS)
+ return -EINVAL;
+
+ rc = rio_mport_scan((int)val);
+exit:
+ if (!rc)
+ rc = count;
+
+ return rc;
+}
+static BUS_ATTR(scan, (S_IWUSR|S_IWGRP), NULL, bus_scan_store);
+
+static struct attribute *rio_bus_attrs[] = {
+ &bus_attr_scan.attr,
+ NULL,
+};
+
+static const struct attribute_group rio_bus_group = {
+ .attrs = rio_bus_attrs,
+};
+
+const struct attribute_group *rio_bus_groups[] = {
+ &rio_bus_group,
+ NULL,
+};
+
+static ssize_t
+port_destid_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct rio_mport *mport = to_rio_mport(dev);
+
+ if (mport)
+ return sprintf(buf, "0x%04x\n", mport->host_deviceid);
+ else
+ return -ENODEV;
+}
+static DEVICE_ATTR_RO(port_destid);
+
+static ssize_t sys_size_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct rio_mport *mport = to_rio_mport(dev);
+
+ if (mport)
+ return sprintf(buf, "%u\n", mport->sys_size);
+ else
+ return -ENODEV;
+}
+static DEVICE_ATTR_RO(sys_size);
+
+static struct attribute *rio_mport_attrs[] = {
+ &dev_attr_port_destid.attr,
+ &dev_attr_sys_size.attr,
+ NULL,
+};
+
+static const struct attribute_group rio_mport_group = {
+ .attrs = rio_mport_attrs,
+};
+
+const struct attribute_group *rio_mport_groups[] = {
+ &rio_mport_group,
+ NULL,
+};