Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 129 insertions, 0 deletions

diff --git a/drivers/pci/hotplug/rpaphp_vio.c b/drivers/pci/hotplug/rpaphp_vio.c
new file mode 100644
index 00000000000..74df6a305e6
--- /dev/null
+++ b/drivers/pci/hotplug/rpaphp_vio.c
@@ -0,0 +1,129 @@
+/*
+ * RPA Hot Plug Virtual I/O device functions 
+ * Copyright (C) 2004 Linda Xie <lxie@us.ibm.com>
+ *
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * 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, GOOD TITLE or
+ * NON INFRINGEMENT.  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.
+ *
+ * Send feedback to <lxie@us.ibm.com>
+ *
+ */
+#include <asm/vio.h>
+#include "rpaphp.h"
+
+/*
+ * get_vio_adapter_status - get  the status of a slot
+ * 
+ * status:
+ * 
+ * 1-- adapter is configured
+ * 2-- adapter is not configured
+ * 3-- not valid
+ */
+inline int rpaphp_get_vio_adapter_status(struct slot *slot, int is_init, u8 *value)
+{
+	*value = slot->state;
+	return 0;
+}
+
+int rpaphp_unconfig_vio_adapter(struct slot *slot)
+{
+	int retval = 0;
+
+	dbg("Entry %s: slot[%s]\n", __FUNCTION__, slot->name);
+	if (!slot->dev.vio_dev) {
+		info("%s: no VIOA in slot[%s]\n", __FUNCTION__, slot->name);
+		retval = -EINVAL;
+		goto exit;
+	}
+	/* remove the device from the vio core */
+	vio_unregister_device(slot->dev.vio_dev);
+	slot->state = NOT_CONFIGURED;
+	info("%s: adapter in slot[%s] unconfigured.\n", __FUNCTION__, slot->name);
+exit:
+	dbg("Exit %s, rc=0x%x\n", __FUNCTION__, retval);
+	return retval;
+}
+
+static int setup_vio_hotplug_slot_info(struct slot *slot)
+{
+	slot->hotplug_slot->info->power_status = 1;
+	rpaphp_get_vio_adapter_status(slot, 1,
+		&slot->hotplug_slot->info->adapter_status); 
+	return 0;
+}
+
+int register_vio_slot(struct device_node *dn)
+{
+	u32 *index;
+	char *name;
+	int rc = -EINVAL;
+	struct slot *slot = NULL;
+	
+	rc = rpaphp_get_drc_props(dn, NULL, &name, NULL, NULL);
+	if (rc < 0)
+		goto exit_rc;
+	index = (u32 *) get_property(dn, "ibm,my-drc-index", NULL);
+	if (!index)
+		goto exit_rc;
+	if (!(slot = alloc_slot_struct(dn, *index, name, 0))) {
+		rc = -ENOMEM;
+		goto exit_rc;
+	}
+	slot->dev_type = VIO_DEV;
+	slot->dev.vio_dev = vio_find_node(dn);
+	if (slot->dev.vio_dev) {
+		/*
+		 * rpaphp is the only owner of vio devices and
+		 * does not need extra reference taken by
+		 * vio_find_node
+		 */
+		put_device(&slot->dev.vio_dev->dev);
+	} else
+		slot->dev.vio_dev = vio_register_device_node(dn);
+	if (slot->dev.vio_dev)
+		slot->state = CONFIGURED;
+	else
+		slot->state = NOT_CONFIGURED;
+	if (setup_vio_hotplug_slot_info(slot))
+		goto exit_rc;
+	strcpy(slot->name, slot->dev.vio_dev->dev.bus_id);
+	info("%s: registered VIO device[name=%s vio_dev=%p]\n",
+		__FUNCTION__, slot->name, slot->dev.vio_dev); 
+	rc = register_slot(slot);
+exit_rc:
+	if (rc && slot)
+		dealloc_slot_struct(slot);
+	return (rc);
+}
+
+int rpaphp_enable_vio_slot(struct slot *slot)
+{
+	int retval = 0;
+
+	if ((slot->dev.vio_dev = vio_register_device_node(slot->dn))) {
+		info("%s: VIO adapter %s in slot[%s] has been configured\n",
+			__FUNCTION__, slot->dn->name, slot->name);
+		slot->state = CONFIGURED;
+	} else {
+		info("%s: no vio_dev struct for adapter in slot[%s]\n",
+			__FUNCTION__, slot->name);
+		slot->state = NOT_CONFIGURED;
+	}
+	
+	return retval;
+}