diff options
author | Benjamin Romer <benjamin.romer@unisys.com> | 2015-04-14 01:16:51 (GMT) |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-04-30 14:37:22 (GMT) |
commit | 6a7d8a418400f8bfaa1830759ef075bbed68cfe1 (patch) | |
tree | 6e4983abefac7d516a822ead9619789e69fe7283 /drivers/staging/unisys/uislib/uislib.c | |
parent | 280b5a4366dd4b813cad180e39b04e773ca0ebe0 (diff) | |
download | linux-6a7d8a418400f8bfaa1830759ef075bbed68cfe1.tar.xz |
staging: unisys: remove uislib module from staging tree
This module is being removed completely, because it contained wrapper functions
and utility functions that were used in virtpci and virthba. Since these two
drivers are being rewritten to not use these wrappers and utilities, uislib
needs to go.
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Reviewed-by: Don Zickus <dzickus@redhat.com>
Reviewed-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/unisys/uislib/uislib.c')
-rw-r--r-- | drivers/staging/unisys/uislib/uislib.c | 1372 |
1 files changed, 0 insertions, 1372 deletions
diff --git a/drivers/staging/unisys/uislib/uislib.c b/drivers/staging/unisys/uislib/uislib.c deleted file mode 100644 index f93d0bb..0000000 --- a/drivers/staging/unisys/uislib/uislib.c +++ /dev/null @@ -1,1372 +0,0 @@ -/* uislib.c - * - * Copyright (C) 2010 - 2013 UNISYS CORPORATION - * 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. - */ - -/* @ALL_INSPECTED */ -#define EXPORT_SYMTAB -#include <linux/kernel.h> -#include <linux/highmem.h> -#ifdef CONFIG_MODVERSIONS -#include <config/modversions.h> -#endif -#include <linux/module.h> -#include <linux/debugfs.h> - -#include <linux/types.h> -#include <linux/uuid.h> - -#include <linux/version.h> -#include "diagnostics/appos_subsystems.h" -#include "uisutils.h" -#include "vbuschannel.h" - -#include <linux/proc_fs.h> -#include <linux/uaccess.h> /* for copy_from_user */ -#include <linux/ctype.h> /* for toupper */ -#include <linux/list.h> - -#include "sparstop.h" -#include "visorchipset.h" -#include "version.h" -#include "guestlinuxdebug.h" - -#define SET_PROC_OWNER(x, y) - -#define POLLJIFFIES_NORMAL 1 -/* Choose whether or not you want to wakeup the request-polling thread - * after an IO termination: - * this is shorter than using __FILE__ (full path name) in - * debug/info/error messages - */ -#define CURRENT_FILE_PC UISLIB_PC_uislib_c -#define __MYFILE__ "uislib.c" - -/* global function pointers that act as callback functions into virtpcimod */ -int (*virt_control_chan_func)(struct guest_msgs *); - -static int debug_buf_valid; -static char *debug_buf; /* Note this MUST be global, - * because the contents must */ -static unsigned int chipset_inited; - -#define WAIT_ON_CALLBACK(handle) \ - do { \ - if (handle) \ - break; \ - UIS_THREAD_WAIT; \ - } while (1) - -static struct bus_info *bus_list; -static rwlock_t bus_list_lock; -static int bus_list_count; /* number of buses in the list */ -static int max_bus_count; /* maximum number of buses expected */ -static u64 phys_data_chan; -static int platform_no; - -static struct uisthread_info incoming_ti; -static BOOL incoming_started = FALSE; -static LIST_HEAD(poll_dev_chan); -static unsigned long long tot_moved_to_tail_cnt; -static unsigned long long tot_wait_cnt; -static unsigned long long tot_wakeup_cnt; -static unsigned long long tot_schedule_cnt; -static int en_smart_wakeup = 1; -static DEFINE_SEMAPHORE(poll_dev_lock); /* unlocked */ -static DECLARE_WAIT_QUEUE_HEAD(poll_dev_wake_q); -static int poll_dev_start; - -#define CALLHOME_PROC_ENTRY_FN "callhome" -#define CALLHOME_THROTTLED_PROC_ENTRY_FN "callhome_throttled" - -#define DIR_DEBUGFS_ENTRY "uislib" -static struct dentry *dir_debugfs; - -#define PLATFORMNUMBER_DEBUGFS_ENTRY_FN "platform" -static struct dentry *platformnumber_debugfs_read; - -#define CYCLES_BEFORE_WAIT_DEBUGFS_ENTRY_FN "cycles_before_wait" -static struct dentry *cycles_before_wait_debugfs_read; - -#define SMART_WAKEUP_DEBUGFS_ENTRY_FN "smart_wakeup" -static struct dentry *smart_wakeup_debugfs_entry; - -#define INFO_DEBUGFS_ENTRY_FN "info" -static struct dentry *info_debugfs_entry; - -static unsigned long long cycles_before_wait, wait_cycles; - -/*****************************************************/ -/* local functions */ -/*****************************************************/ - -static ssize_t info_debugfs_read(struct file *file, char __user *buf, - size_t len, loff_t *offset); -static const struct file_operations debugfs_info_fops = { - .read = info_debugfs_read, -}; - -static void -init_msg_header(struct controlvm_message *msg, u32 id, uint rsp, uint svr) -{ - memset(msg, 0, sizeof(struct controlvm_message)); - msg->hdr.id = id; - msg->hdr.flags.response_expected = rsp; - msg->hdr.flags.server = svr; -} - -static __iomem void *init_vbus_channel(u64 ch_addr, u32 ch_bytes) -{ - void __iomem *ch = uislib_ioremap_cache(ch_addr, ch_bytes); - - if (!ch) - return NULL; - - if (!SPAR_VBUS_CHANNEL_OK_CLIENT(ch)) { - uislib_iounmap(ch); - return NULL; - } - return ch; -} - -static int -create_bus(struct controlvm_message *msg, char *buf) -{ - u32 bus_no, dev_count; - struct bus_info *tmp, *bus; - size_t size; - - if (max_bus_count == bus_list_count) { - POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, max_bus_count, - POSTCODE_SEVERITY_ERR); - return CONTROLVM_RESP_ERROR_MAX_BUSES; - } - - bus_no = msg->cmd.create_bus.bus_no; - dev_count = msg->cmd.create_bus.dev_count; - - POSTCODE_LINUX_4(BUS_CREATE_ENTRY_PC, bus_no, dev_count, - POSTCODE_SEVERITY_INFO); - - size = - sizeof(struct bus_info) + - (dev_count * sizeof(struct device_info *)); - bus = kzalloc(size, GFP_ATOMIC); - if (!bus) { - POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus_no, - POSTCODE_SEVERITY_ERR); - return CONTROLVM_RESP_ERROR_KMALLOC_FAILED; - } - - /* Currently by default, the bus Number is the GuestHandle. - * Configure Bus message can override this. - */ - if (msg->hdr.flags.test_message) { - /* This implies we're the IOVM so set guest handle to 0... */ - bus->guest_handle = 0; - bus->bus_no = bus_no; - bus->local_vnic = 1; - } else { - bus->bus_no = bus_no; - bus->guest_handle = bus_no; - } - sprintf(bus->name, "%d", (int)bus->bus_no); - bus->device_count = dev_count; - bus->device = - (struct device_info **)((char *)bus + sizeof(struct bus_info)); - bus->bus_inst_uuid = msg->cmd.create_bus.bus_inst_uuid; - bus->bus_channel_bytes = 0; - bus->bus_channel = NULL; - - /* add bus to our bus list - but check for duplicates first */ - read_lock(&bus_list_lock); - for (tmp = bus_list; tmp; tmp = tmp->next) { - if (tmp->bus_no == bus->bus_no) - break; - } - read_unlock(&bus_list_lock); - if (tmp) { - /* found a bus already in the list with same bus_no - - * reject add - */ - POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus->bus_no, - POSTCODE_SEVERITY_ERR); - kfree(bus); - return CONTROLVM_RESP_ERROR_ALREADY_DONE; - } - if ((msg->cmd.create_bus.channel_addr != 0) && - (msg->cmd.create_bus.channel_bytes != 0)) { - bus->bus_channel_bytes = msg->cmd.create_bus.channel_bytes; - bus->bus_channel = - init_vbus_channel(msg->cmd.create_bus.channel_addr, - msg->cmd.create_bus.channel_bytes); - } - /* the msg is bound for virtpci; send guest_msgs struct to callback */ - if (!msg->hdr.flags.server) { - struct guest_msgs cmd; - - cmd.msgtype = GUEST_ADD_VBUS; - cmd.add_vbus.bus_no = bus_no; - cmd.add_vbus.chanptr = bus->bus_channel; - cmd.add_vbus.dev_count = dev_count; - cmd.add_vbus.bus_uuid = msg->cmd.create_bus.bus_data_type_uuid; - cmd.add_vbus.instance_uuid = msg->cmd.create_bus.bus_inst_uuid; - if (!virt_control_chan_func) { - POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus->bus_no, - POSTCODE_SEVERITY_ERR); - kfree(bus); - return CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE; - } - if (!virt_control_chan_func(&cmd)) { - POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus->bus_no, - POSTCODE_SEVERITY_ERR); - kfree(bus); - return - CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR; - } - } - - /* add bus at the head of our list */ - write_lock(&bus_list_lock); - if (!bus_list) { - bus_list = bus; - } else { - bus->next = bus_list; - bus_list = bus; - } - bus_list_count++; - write_unlock(&bus_list_lock); - - POSTCODE_LINUX_3(BUS_CREATE_EXIT_PC, bus->bus_no, - POSTCODE_SEVERITY_INFO); - return CONTROLVM_RESP_SUCCESS; -} - -static int -destroy_bus(struct controlvm_message *msg, char *buf) -{ - int i; - struct bus_info *bus, *prev = NULL; - struct guest_msgs cmd; - u32 bus_no; - - bus_no = msg->cmd.destroy_bus.bus_no; - - read_lock(&bus_list_lock); - - bus = bus_list; - while (bus) { - if (bus->bus_no == bus_no) - break; - prev = bus; - bus = bus->next; - } - - if (!bus) { - read_unlock(&bus_list_lock); - return CONTROLVM_RESP_ERROR_ALREADY_DONE; - } - - /* verify that this bus has no devices. */ - for (i = 0; i < bus->device_count; i++) { - if (bus->device[i]) { - read_unlock(&bus_list_lock); - return CONTROLVM_RESP_ERROR_BUS_DEVICE_ATTACHED; - } - } - read_unlock(&bus_list_lock); - - if (msg->hdr.flags.server) - goto remove; - - /* client messages require us to call the virtpci callback associated - with this bus. */ - cmd.msgtype = GUEST_DEL_VBUS; - cmd.del_vbus.bus_no = bus_no; - if (!virt_control_chan_func) - return CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE; - - if (!virt_control_chan_func(&cmd)) - return CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR; - - /* finally, remove the bus from the list */ -remove: - write_lock(&bus_list_lock); - if (prev) /* not at head */ - prev->next = bus->next; - else - bus_list = bus->next; - bus_list_count--; - write_unlock(&bus_list_lock); - - if (bus->bus_channel) { - uislib_iounmap(bus->bus_channel); - bus->bus_channel = NULL; - } - - kfree(bus); - return CONTROLVM_RESP_SUCCESS; -} - -static int create_device(struct controlvm_message *msg, char *buf) -{ - struct device_info *dev; - struct bus_info *bus; - struct guest_msgs cmd; - u32 bus_no, dev_no; - int result = CONTROLVM_RESP_SUCCESS; - u64 min_size = MIN_IO_CHANNEL_SIZE; - struct req_handler_info *req_handler; - - bus_no = msg->cmd.create_device.bus_no; - dev_no = msg->cmd.create_device.dev_no; - - POSTCODE_LINUX_4(DEVICE_CREATE_ENTRY_PC, dev_no, bus_no, - POSTCODE_SEVERITY_INFO); - - dev = kzalloc(sizeof(*dev), GFP_ATOMIC); - if (!dev) { - POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, bus_no, - POSTCODE_SEVERITY_ERR); - return CONTROLVM_RESP_ERROR_KMALLOC_FAILED; - } - - dev->channel_uuid = msg->cmd.create_device.data_type_uuid; - dev->intr = msg->cmd.create_device.intr; - dev->channel_addr = msg->cmd.create_device.channel_addr; - dev->bus_no = bus_no; - dev->dev_no = dev_no; - sema_init(&dev->interrupt_callback_lock, 1); /* unlocked */ - sprintf(dev->devid, "vbus%u:dev%u", (unsigned)bus_no, (unsigned)dev_no); - /* map the channel memory for the device. */ - if (msg->hdr.flags.test_message) { - dev->chanptr = (void __iomem *)__va(dev->channel_addr); - } else { - req_handler = req_handler_find(dev->channel_uuid); - if (req_handler) - /* generic service handler registered for this - * channel - */ - min_size = req_handler->min_channel_bytes; - if (min_size > msg->cmd.create_device.channel_bytes) { - POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, - bus_no, POSTCODE_SEVERITY_ERR); - result = CONTROLVM_RESP_ERROR_CHANNEL_SIZE_TOO_SMALL; - goto cleanup; - } - dev->chanptr = - uislib_ioremap_cache(dev->channel_addr, - msg->cmd.create_device.channel_bytes); - if (!dev->chanptr) { - result = CONTROLVM_RESP_ERROR_IOREMAP_FAILED; - POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, - bus_no, POSTCODE_SEVERITY_ERR); - goto cleanup; - } - } - dev->instance_uuid = msg->cmd.create_device.dev_inst_uuid; - dev->channel_bytes = msg->cmd.create_device.channel_bytes; - - read_lock(&bus_list_lock); - for (bus = bus_list; bus; bus = bus->next) { - if (bus->bus_no != bus_no) - continue; - /* make sure the device number is valid */ - if (dev_no >= bus->device_count) { - result = CONTROLVM_RESP_ERROR_MAX_DEVICES; - POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, - bus_no, POSTCODE_SEVERITY_ERR); - read_unlock(&bus_list_lock); - goto cleanup; - } - /* make sure this device is not already set */ - if (bus->device[dev_no]) { - POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, - dev_no, bus_no, - POSTCODE_SEVERITY_ERR); - result = CONTROLVM_RESP_ERROR_ALREADY_DONE; - read_unlock(&bus_list_lock); - goto cleanup; - } - read_unlock(&bus_list_lock); - /* the msg is bound for virtpci; send - * guest_msgs struct to callback - */ - if (msg->hdr.flags.server) { - bus->device[dev_no] = dev; - POSTCODE_LINUX_4(DEVICE_CREATE_SUCCESS_PC, dev_no, - bus_no, POSTCODE_SEVERITY_INFO); - return CONTROLVM_RESP_SUCCESS; - } - if (uuid_le_cmp(dev->channel_uuid, - spar_vhba_channel_protocol_uuid) == 0) { - wait_for_valid_guid(&((struct channel_header __iomem *) - (dev->chanptr))->chtype); - if (!SPAR_VHBA_CHANNEL_OK_CLIENT(dev->chanptr)) { - POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, - dev_no, bus_no, - POSTCODE_SEVERITY_ERR); - result = CONTROLVM_RESP_ERROR_CHANNEL_INVALID; - goto cleanup; - } - cmd.msgtype = GUEST_ADD_VHBA; - cmd.add_vhba.chanptr = dev->chanptr; - cmd.add_vhba.bus_no = bus_no; - cmd.add_vhba.device_no = dev_no; - cmd.add_vhba.instance_uuid = dev->instance_uuid; - cmd.add_vhba.intr = dev->intr; - } else if (uuid_le_cmp(dev->channel_uuid, - spar_vnic_channel_protocol_uuid) == 0) { - wait_for_valid_guid(&((struct channel_header __iomem *) - (dev->chanptr))->chtype); - if (!SPAR_VNIC_CHANNEL_OK_CLIENT(dev->chanptr)) { - POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, - dev_no, bus_no, - POSTCODE_SEVERITY_ERR); - result = CONTROLVM_RESP_ERROR_CHANNEL_INVALID; - goto cleanup; - } - cmd.msgtype = GUEST_ADD_VNIC; - cmd.add_vnic.chanptr = dev->chanptr; - cmd.add_vnic.bus_no = bus_no; - cmd.add_vnic.device_no = dev_no; - cmd.add_vnic.instance_uuid = dev->instance_uuid; - cmd.add_vhba.intr = dev->intr; - } else { - POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, - bus_no, POSTCODE_SEVERITY_ERR); - result = CONTROLVM_RESP_ERROR_CHANNEL_TYPE_UNKNOWN; - goto cleanup; - } - - if (!virt_control_chan_func) { - POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, - bus_no, POSTCODE_SEVERITY_ERR); - result = CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE; - goto cleanup; - } - - if (!virt_control_chan_func(&cmd)) { - POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, - bus_no, POSTCODE_SEVERITY_ERR); - result = - CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR; - goto cleanup; - } - - bus->device[dev_no] = dev; - POSTCODE_LINUX_4(DEVICE_CREATE_SUCCESS_PC, dev_no, - bus_no, POSTCODE_SEVERITY_INFO); - return CONTROLVM_RESP_SUCCESS; - } - read_unlock(&bus_list_lock); - - POSTCODE_LINUX_4(DEVICE_CREATE_FAILURE_PC, dev_no, bus_no, - POSTCODE_SEVERITY_ERR); - result = CONTROLVM_RESP_ERROR_BUS_INVALID; - -cleanup: - if (!msg->hdr.flags.test_message) { - uislib_iounmap(dev->chanptr); - dev->chanptr = NULL; - } - - kfree(dev); - return result; -} - -static int pause_device(struct controlvm_message *msg) -{ - u32 bus_no, dev_no; - struct bus_info *bus; - struct device_info *dev; - struct guest_msgs cmd; - int retval = CONTROLVM_RESP_SUCCESS; - - bus_no = msg->cmd.device_change_state.bus_no; - dev_no = msg->cmd.device_change_state.dev_no; - - read_lock(&bus_list_lock); - for (bus = bus_list; bus; bus = bus->next) { - if (bus->bus_no == bus_no) { - /* make sure the device number is valid */ - if (dev_no >= bus->device_count) { - retval = CONTROLVM_RESP_ERROR_DEVICE_INVALID; - } else { - /* make sure this device exists */ - dev = bus->device[dev_no]; - if (!dev) { - retval = - CONTROLVM_RESP_ERROR_ALREADY_DONE; - } - } - break; - } - } - if (!bus) - retval = CONTROLVM_RESP_ERROR_BUS_INVALID; - - read_unlock(&bus_list_lock); - if (retval == CONTROLVM_RESP_SUCCESS) { - /* the msg is bound for virtpci; send - * guest_msgs struct to callback - */ - if (uuid_le_cmp(dev->channel_uuid, - spar_vhba_channel_protocol_uuid) == 0) { - cmd.msgtype = GUEST_PAUSE_VHBA; - cmd.pause_vhba.chanptr = dev->chanptr; - } else if (uuid_le_cmp(dev->channel_uuid, - spar_vnic_channel_protocol_uuid) == 0) { - cmd.msgtype = GUEST_PAUSE_VNIC; - cmd.pause_vnic.chanptr = dev->chanptr; - } else { - return CONTROLVM_RESP_ERROR_CHANNEL_TYPE_UNKNOWN; - } - if (!virt_control_chan_func) - return CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE; - if (!virt_control_chan_func(&cmd)) { - return - CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR; - } - } - return retval; -} - -static int resume_device(struct controlvm_message *msg) -{ - u32 bus_no, dev_no; - struct bus_info *bus; - struct device_info *dev; - struct guest_msgs cmd; - int retval = CONTROLVM_RESP_SUCCESS; - - bus_no = msg->cmd.device_change_state.bus_no; - dev_no = msg->cmd.device_change_state.dev_no; - - read_lock(&bus_list_lock); - for (bus = bus_list; bus; bus = bus->next) { - if (bus->bus_no == bus_no) { - /* make sure the device number is valid */ - if (dev_no >= bus->device_count) { - retval = CONTROLVM_RESP_ERROR_DEVICE_INVALID; - } else { - /* make sure this device exists */ - dev = bus->device[dev_no]; - if (!dev) { - retval = - CONTROLVM_RESP_ERROR_ALREADY_DONE; - } - } - break; - } - } - - if (!bus) - retval = CONTROLVM_RESP_ERROR_BUS_INVALID; - - read_unlock(&bus_list_lock); - /* the msg is bound for virtpci; send - * guest_msgs struct to callback - */ - if (retval == CONTROLVM_RESP_SUCCESS) { - if (uuid_le_cmp(dev->channel_uuid, - spar_vhba_channel_protocol_uuid) == 0) { - cmd.msgtype = GUEST_RESUME_VHBA; - cmd.resume_vhba.chanptr = dev->chanptr; - } else if (uuid_le_cmp(dev->channel_uuid, - spar_vnic_channel_protocol_uuid) == 0) { - cmd.msgtype = GUEST_RESUME_VNIC; - cmd.resume_vnic.chanptr = dev->chanptr; - } else { - return CONTROLVM_RESP_ERROR_CHANNEL_TYPE_UNKNOWN; - } - if (!virt_control_chan_func) - return CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE; - if (!virt_control_chan_func(&cmd)) { - return - CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR; - } - } - return retval; -} - -static int destroy_device(struct controlvm_message *msg, char *buf) -{ - u32 bus_no, dev_no; - struct bus_info *bus; - struct device_info *dev; - struct guest_msgs cmd; - int retval = CONTROLVM_RESP_SUCCESS; - - bus_no = msg->cmd.destroy_device.bus_no; - dev_no = msg->cmd.destroy_device.bus_no; - - read_lock(&bus_list_lock); - for (bus = bus_list; bus; bus = bus->next) { - if (bus->bus_no == bus_no) { - /* make sure the device number is valid */ - if (dev_no >= bus->device_count) { - retval = CONTROLVM_RESP_ERROR_DEVICE_INVALID; - } else { - /* make sure this device exists */ - dev = bus->device[dev_no]; - if (!dev) { - retval = - CONTROLVM_RESP_ERROR_ALREADY_DONE; - } - } - break; - } - } - - if (!bus) - retval = CONTROLVM_RESP_ERROR_BUS_INVALID; - read_unlock(&bus_list_lock); - if (retval == CONTROLVM_RESP_SUCCESS) { - /* the msg is bound for virtpci; send - * guest_msgs struct to callback - */ - if (uuid_le_cmp(dev->channel_uuid, - spar_vhba_channel_protocol_uuid) == 0) { - cmd.msgtype = GUEST_DEL_VHBA; - cmd.del_vhba.chanptr = dev->chanptr; - } else if (uuid_le_cmp(dev->channel_uuid, - spar_vnic_channel_protocol_uuid) == 0) { - cmd.msgtype = GUEST_DEL_VNIC; - cmd.del_vnic.chanptr = dev->chanptr; - } else { - return - CONTROLVM_RESP_ERROR_CHANNEL_TYPE_UNKNOWN; - } - if (!virt_control_chan_func) { - return - CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_FAILURE; - } - if (!virt_control_chan_func(&cmd)) { - return - CONTROLVM_RESP_ERROR_VIRTPCI_DRIVER_CALLBACK_ERROR; - } -/* you must disable channel interrupts BEFORE you unmap the channel, - * because if you unmap first, there may still be some activity going - * on which accesses the channel and you will get a "unable to handle - * kernel paging request" - */ - if (dev->polling) - uislib_disable_channel_interrupts(bus_no, dev_no); - /* unmap the channel memory for the device. */ - if (!msg->hdr.flags.test_message) - uislib_iounmap(dev->chanptr); - kfree(dev); - bus->device[dev_no] = NULL; - } - return retval; -} - -static int -init_chipset(struct controlvm_message *msg, char *buf) -{ - POSTCODE_LINUX_2(CHIPSET_INIT_ENTRY_PC, POSTCODE_SEVERITY_INFO); - - max_bus_count = msg->cmd.init_chipset.bus_count; - platform_no = msg->cmd.init_chipset.platform_number; - phys_data_chan = 0; - - /* We need to make sure we have our functions registered - * before processing messages. If we are a test vehicle the - * test_message for init_chipset will be set. We can ignore the - * waits for the callbacks, since this will be manually entered - * from a user. If no test_message is set, we will wait for the - * functions. - */ - if (!msg->hdr.flags.test_message) - WAIT_ON_CALLBACK(virt_control_chan_func); - - chipset_inited = 1; - POSTCODE_LINUX_2(CHIPSET_INIT_EXIT_PC, POSTCODE_SEVERITY_INFO); - - return CONTROLVM_RESP_SUCCESS; -} - -static int delete_bus_glue(u32 bus_no) -{ - struct controlvm_message msg; - - init_msg_header(&msg, CONTROLVM_BUS_DESTROY, 0, 0); - msg.cmd.destroy_bus.bus_no = bus_no; - if (destroy_bus(&msg, NULL) != CONTROLVM_RESP_SUCCESS) - return 0; - return 1; -} - -static int delete_device_glue(u32 bus_no, u32 dev_no) -{ - struct controlvm_message msg; - - init_msg_header(&msg, CONTROLVM_DEVICE_DESTROY, 0, 0); - msg.cmd.destroy_device.bus_no = bus_no; - msg.cmd.destroy_device.dev_no = dev_no; - if (destroy_device(&msg, NULL) != CONTROLVM_RESP_SUCCESS) - return 0; - return 1; -} - -int -uislib_client_inject_add_bus(u32 bus_no, uuid_le inst_uuid, - u64 channel_addr, ulong n_channel_bytes) -{ - struct controlvm_message msg; - - /* step 0: init the chipset */ - POSTCODE_LINUX_3(CHIPSET_INIT_ENTRY_PC, bus_no, POSTCODE_SEVERITY_INFO); - - if (!chipset_inited) { - /* step: initialize the chipset */ - init_msg_header(&msg, CONTROLVM_CHIPSET_INIT, 0, 0); - /* this change is needed so that console will come up - * OK even when the bus 0 create comes in late. If the - * bus 0 create is the first create, then the add_vnic - * will work fine, but if the bus 0 create arrives - * after number 4, then the add_vnic will fail, and the - * ultraboot will fail. - */ - msg.cmd.init_chipset.bus_count = 23; - msg.cmd.init_chipset.switch_count = 0; - if (init_chipset(&msg, NULL) != CONTROLVM_RESP_SUCCESS) - return 0; - POSTCODE_LINUX_3(CHIPSET_INIT_EXIT_PC, bus_no, - POSTCODE_SEVERITY_INFO); - } - - /* step 1: create a bus */ - POSTCODE_LINUX_3(BUS_CREATE_ENTRY_PC, bus_no, - POSTCODE_SEVERITY_WARNING); - init_msg_header(&msg, CONTROLVM_BUS_CREATE, 0, 0); - msg.cmd.create_bus.bus_no = bus_no; - msg.cmd.create_bus.dev_count = 23; /* devNo+1; */ - msg.cmd.create_bus.channel_addr = channel_addr; - msg.cmd.create_bus.channel_bytes = n_channel_bytes; - if (create_bus(&msg, NULL) != CONTROLVM_RESP_SUCCESS) { - POSTCODE_LINUX_3(BUS_CREATE_FAILURE_PC, bus_no, - POSTCODE_SEVERITY_ERR); - return 0; - } - POSTCODE_LINUX_3(BUS_CREATE_EXIT_PC, bus_no, POSTCODE_SEVERITY_INFO); - - return 1; -} -EXPORT_SYMBOL_GPL(uislib_client_inject_add_bus); - -int -uislib_client_inject_del_bus(u32 bus_no) -{ - return delete_bus_glue(bus_no); -} -EXPORT_SYMBOL_GPL(uislib_client_inject_del_bus); - -int -uislib_client_inject_pause_vhba(u32 bus_no, u32 dev_no) -{ - struct controlvm_message msg; - int rc; - - init_msg_header(&msg, CONTROLVM_DEVICE_CHANGESTATE, 0, 0); - msg.cmd.device_change_state.bus_no = bus_no; - msg.cmd.device_change_state.dev_no = dev_no; - msg.cmd.device_change_state.state = segment_state_standby; - rc = pause_device(&msg); - if (rc != CONTROLVM_RESP_SUCCESS) - return rc; - return 0; -} -EXPORT_SYMBOL_GPL(uislib_client_inject_pause_vhba); - -int -uislib_client_inject_resume_vhba(u32 bus_no, u32 dev_no) -{ - struct controlvm_message msg; - int rc; - - init_msg_header(&msg, CONTROLVM_DEVICE_CHANGESTATE, 0, 0); - msg.cmd.device_change_state.bus_no = bus_no; - msg.cmd.device_change_state.dev_no = dev_no; - msg.cmd.device_change_state.state = segment_state_running; - rc = resume_device(&msg); - if (rc != CONTROLVM_RESP_SUCCESS) - return rc; - return 0; -} -EXPORT_SYMBOL_GPL(uislib_client_inject_resume_vhba); - -int -uislib_client_inject_add_vhba(u32 bus_no, u32 dev_no, - u64 phys_chan_addr, u32 chan_bytes, - int is_test_addr, uuid_le inst_uuid, - struct irq_info *intr) -{ - struct controlvm_message msg; - - /* chipset init'ed with bus bus has been previously created - - * Verify it still exists step 2: create the VHBA device on the - * bus - */ - POSTCODE_LINUX_4(VHBA_CREATE_ENTRY_PC, dev_no, bus_no, - POSTCODE_SEVERITY_INFO); - - init_msg_header(&msg, CONTROLVM_DEVICE_CREATE, 0, 0); - if (is_test_addr) - /* signify that the physical channel address does NOT - * need to be ioremap()ed - */ - msg.hdr.flags.test_message = 1; - msg.cmd.create_device.bus_no = bus_no; - msg.cmd.create_device.dev_no = dev_no; - msg.cmd.create_device.dev_inst_uuid = inst_uuid; - if (intr) - msg.cmd.create_device.intr = *intr; - else - memset(&msg.cmd.create_device.intr, 0, - sizeof(struct irq_info)); - msg.cmd.create_device.channel_addr = phys_chan_addr; - if (chan_bytes < MIN_IO_CHANNEL_SIZE) { - POSTCODE_LINUX_4(VHBA_CREATE_FAILURE_PC, chan_bytes, - MIN_IO_CHANNEL_SIZE, POSTCODE_SEVERITY_ERR); - return 0; - } - msg.cmd.create_device.channel_bytes = chan_bytes; - msg.cmd.create_device.data_type_uuid = spar_vhba_channel_protocol_uuid; - if (create_device(&msg, NULL) != CONTROLVM_RESP_SUCCESS) { - POSTCODE_LINUX_4(VHBA_CREATE_FAILURE_PC, dev_no, bus_no, - POSTCODE_SEVERITY_ERR); - return 0; - } - POSTCODE_LINUX_4(VHBA_CREATE_SUCCESS_PC, dev_no, bus_no, - POSTCODE_SEVERITY_INFO); - return 1; -} -EXPORT_SYMBOL_GPL(uislib_client_inject_add_vhba); - -int -uislib_client_inject_del_vhba(u32 bus_no, u32 dev_no) -{ - return delete_device_glue(bus_no, dev_no); -} -EXPORT_SYMBOL_GPL(uislib_client_inject_del_vhba); - -int -uislib_client_inject_add_vnic(u32 bus_no, u32 dev_no, - u64 phys_chan_addr, u32 chan_bytes, - int is_test_addr, uuid_le inst_uuid, - struct irq_info *intr) -{ - struct controlvm_message msg; - - /* chipset init'ed with bus bus has been previously created - - * Verify it still exists step 2: create the VNIC device on the - * bus - */ - POSTCODE_LINUX_4(VNIC_CREATE_ENTRY_PC, dev_no, bus_no, - POSTCODE_SEVERITY_INFO); - - init_msg_header(&msg, CONTROLVM_DEVICE_CREATE, 0, 0); - if (is_test_addr) - /* signify that the physical channel address does NOT - * need to be ioremap()ed - */ - msg.hdr.flags.test_message = 1; - msg.cmd.create_device.bus_no = bus_no; - msg.cmd.create_device.dev_no = dev_no; - msg.cmd.create_device.dev_inst_uuid = inst_uuid; - if (intr) - msg.cmd.create_device.intr = *intr; - else - memset(&msg.cmd.create_device.intr, 0, - sizeof(struct irq_info)); - msg.cmd.create_device.channel_addr = phys_chan_addr; - if (chan_bytes < MIN_IO_CHANNEL_SIZE) { - POSTCODE_LINUX_4(VNIC_CREATE_FAILURE_PC, chan_bytes, - MIN_IO_CHANNEL_SIZE, POSTCODE_SEVERITY_ERR); - return 0; - } - msg.cmd.create_device.channel_bytes = chan_bytes; - msg.cmd.create_device.data_type_uuid = spar_vnic_channel_protocol_uuid; - if (create_device(&msg, NULL) != CONTROLVM_RESP_SUCCESS) { - POSTCODE_LINUX_4(VNIC_CREATE_FAILURE_PC, dev_no, bus_no, - POSTCODE_SEVERITY_ERR); - return 0; - } - - POSTCODE_LINUX_4(VNIC_CREATE_SUCCESS_PC, dev_no, bus_no, - POSTCODE_SEVERITY_INFO); - return 1; -} -EXPORT_SYMBOL_GPL(uislib_client_inject_add_vnic); - -int -uislib_client_inject_pause_vnic(u32 bus_no, u32 dev_no) -{ - struct controlvm_message msg; - int rc; - - init_msg_header(&msg, CONTROLVM_DEVICE_CHANGESTATE, 0, 0); - msg.cmd.device_change_state.bus_no = bus_no; - msg.cmd.device_change_state.dev_no = dev_no; - msg.cmd.device_change_state.state = segment_state_standby; - rc = pause_device(&msg); - if (rc != CONTROLVM_RESP_SUCCESS) - return -1; - return 0; -} -EXPORT_SYMBOL_GPL(uislib_client_inject_pause_vnic); - -int -uislib_client_inject_resume_vnic(u32 bus_no, u32 dev_no) -{ - struct controlvm_message msg; - int rc; - - init_msg_header(&msg, CONTROLVM_DEVICE_CHANGESTATE, 0, 0); - msg.cmd.device_change_state.bus_no = bus_no; - msg.cmd.device_change_state.dev_no = dev_no; - msg.cmd.device_change_state.state = segment_state_running; - rc = resume_device(&msg); - if (rc != CONTROLVM_RESP_SUCCESS) - return -1; - return 0; -} -EXPORT_SYMBOL_GPL(uislib_client_inject_resume_vnic); - -int -uislib_client_inject_del_vnic(u32 bus_no, u32 dev_no) -{ - return delete_device_glue(bus_no, dev_no); -} -EXPORT_SYMBOL_GPL(uislib_client_inject_del_vnic); - -void * -uislib_cache_alloc(struct kmem_cache *cur_pool, char *fn, int ln) -{ - /* __GFP_NORETRY means "ok to fail", meaning kmalloc() can - * return NULL. If you do NOT specify __GFP_NORETRY, Linux - * will go to extreme measures to get memory for you (like, - * invoke oom killer), which will probably cripple the system. - */ - void *p = kmem_cache_alloc(cur_pool, GFP_ATOMIC | __GFP_NORETRY); - - if (!p) - return NULL; - return p; -} -EXPORT_SYMBOL_GPL(uislib_cache_alloc); - -void -uislib_cache_free(struct kmem_cache *cur_pool, void *p, char *fn, int ln) -{ - if (!p) - return; - kmem_cache_free(cur_pool, p); -} -EXPORT_SYMBOL_GPL(uislib_cache_free); - -/*****************************************************/ -/* proc filesystem callback functions */ -/*****************************************************/ - -#define PLINE(...) uisutil_add_proc_line_ex(&tot, buff, \ - buff_len, __VA_ARGS__) - -static int -info_debugfs_read_helper(char **buff, int *buff_len) -{ - int i, tot = 0; - struct bus_info *bus; - - if (PLINE("\nBuses:\n") < 0) - goto err_done; - - read_lock(&bus_list_lock); - for (bus = bus_list; bus; bus = bus->next) { - if (PLINE(" bus=0x%p, busNo=%d, deviceCount=%d\n", - bus, bus->bus_no, bus->device_count) < 0) - goto err_done_unlock; - - if (PLINE(" Devices:\n") < 0) - goto err_done_unlock; - - for (i = 0; i < bus->device_count; i++) { - if (bus->device[i]) { - if (PLINE(" busNo %d, device[%i]: 0x%p, chanptr=0x%p, swtch=0x%p\n", - bus->bus_no, i, bus->device[i], - bus->device[i]->chanptr, - bus->device[i]->swtch) < 0) - goto err_done_unlock; - - if (PLINE(" first_busy_cnt=%llu, moved_to_tail_cnt=%llu, last_on_list_cnt=%llu\n", - bus->device[i]->first_busy_cnt, - bus->device[i]->moved_to_tail_cnt, - bus->device[i]->last_on_list_cnt) < 0) - goto err_done_unlock; - } - } - } - read_unlock(&bus_list_lock); - - if (PLINE("UisUtils_Registered_Services: %d\n", - atomic_read(&uisutils_registered_services)) < 0) - goto err_done; - if (PLINE("cycles_before_wait %llu wait_cycles:%llu\n", - cycles_before_wait, wait_cycles) < 0) - goto err_done; - if (PLINE("tot_wakeup_cnt %llu:tot_wait_cnt %llu:tot_schedule_cnt %llu\n", - tot_wakeup_cnt, tot_wait_cnt, tot_schedule_cnt) < 0) - goto err_done; - if (PLINE("en_smart_wakeup %d\n", en_smart_wakeup) < 0) - goto err_done; - if (PLINE("tot_moved_to_tail_cnt %llu\n", tot_moved_to_tail_cnt) < 0) - goto err_done; - - return tot; - -err_done_unlock: - read_unlock(&bus_list_lock); -err_done: - return -1; -} - -static ssize_t info_debugfs_read(struct file *file, char __user *buf, - size_t len, loff_t *offset) -{ - char *temp; - int total_bytes = 0; - int remaining_bytes = PROC_READ_BUFFER_SIZE; - -/* *start = buf; */ - if (!debug_buf) { - debug_buf = vmalloc(PROC_READ_BUFFER_SIZE); - - if (!debug_buf) - return -ENOMEM; - } - - temp = debug_buf; - - if ((*offset == 0) || (!debug_buf_valid)) { - /* if the read fails, then -1 will be returned */ - total_bytes = info_debugfs_read_helper(&temp, &remaining_bytes); - debug_buf_valid = 1; - } else { - total_bytes = strlen(debug_buf); - } - - return simple_read_from_buffer(buf, len, offset, - debug_buf, total_bytes); -} - -static struct device_info *find_dev(u32 bus_no, u32 dev_no) -{ - struct bus_info *bus; - struct device_info *dev = NULL; - - read_lock(&bus_list_lock); - for (bus = bus_list; bus; bus = bus->next) { - if (bus->bus_no == bus_no) { - /* make sure the device number is valid */ - if (dev_no >= bus->device_count) - break; - dev = bus->device[dev_no]; - break; - } - } - read_unlock(&bus_list_lock); - return dev; -} - -/* This thread calls the "interrupt" function for each device that has - * enabled such using uislib_enable_channel_interrupts(). The "interrupt" - * function typically reads and processes the devices's channel input - * queue. This thread repeatedly does this, until the thread is told to stop - * (via uisthread_stop()). Sleeping rules: - * - If we have called the "interrupt" function for all devices, and all of - * them have reported "nothing processed" (returned 0), then we will go to - * sleep for a maximum of POLLJIFFIES_NORMAL jiffies. - * - If anyone calls uislib_force_channel_interrupt(), the above jiffy - * sleep will be interrupted, and we will resume calling the "interrupt" - * function for all devices. - * - The list of devices is dynamically re-ordered in order to - * attempt to preserve fairness. Whenever we spin thru the list of - * devices and call the dev->interrupt() function, if we find - * devices which report that there is still more work to do, the - * the first such device we find is moved to the end of the device - * list. This ensures that extremely busy devices don't starve out - * less-busy ones. - * - */ -static int process_incoming(void *v) -{ - unsigned long long cur_cycles, old_cycles, idle_cycles, delta_cycles; - struct list_head *new_tail = NULL; - int i; - - UIS_DAEMONIZE("dev_incoming"); - for (i = 0; i < 16; i++) { - old_cycles = get_cycles(); - wait_event_timeout(poll_dev_wake_q, - 0, POLLJIFFIES_NORMAL); - cur_cycles = get_cycles(); - if (wait_cycles == 0) { - wait_cycles = (cur_cycles - old_cycles); - } else { - if (wait_cycles < (cur_cycles - old_cycles)) - wait_cycles = (cur_cycles - old_cycles); - } - } - cycles_before_wait = wait_cycles; - idle_cycles = 0; - poll_dev_start = 0; - while (1) { - struct list_head *lelt, *tmp; - struct device_info *dev = NULL; - - /* poll each channel for input */ - down(&poll_dev_lock); - new_tail = NULL; - list_for_each_safe(lelt, tmp, &poll_dev_chan) { - int rc = 0; - - dev = list_entry(lelt, struct device_info, - list_polling_device_channels); - down(&dev->interrupt_callback_lock); - if (dev->interrupt) - rc = dev->interrupt(dev->interrupt_context); - else - continue; - up(&dev->interrupt_callback_lock); - if (rc) { - /* dev->interrupt returned, but there - * is still more work to do. - * Reschedule work to occur as soon as - * possible. */ - idle_cycles = 0; - if (!new_tail) { - dev->first_busy_cnt++; - if (! - (list_is_last - (lelt, - &poll_dev_chan))) { - new_tail = lelt; - dev->moved_to_tail_cnt++; - } else { - dev->last_on_list_cnt++; - } - } - } - if (kthread_should_stop()) - break; - } - if (new_tail) { - tot_moved_to_tail_cnt++; - list_move_tail(new_tail, &poll_dev_chan); - } - up(&poll_dev_lock); - cur_cycles = get_cycles(); - delta_cycles = cur_cycles - old_cycles; - old_cycles = cur_cycles; - - /* At this point, we have scanned thru all of the - * channels, and at least one of the following is true: - * - there is no input waiting on any of the channels - * - we have received a signal to stop this thread - */ - if (kthread_should_stop()) - break; - if (en_smart_wakeup == 0xFF) - break; - /* wait for POLLJIFFIES_NORMAL jiffies, or until - * someone wakes up poll_dev_wake_q, - * whichever comes first only do a wait when we have - * been idle for cycles_before_wait cycles. - */ - if (idle_cycles > cycles_before_wait) { - poll_dev_start = 0; - tot_wait_cnt++; - wait_event_timeout(poll_dev_wake_q, - poll_dev_start, - POLLJIFFIES_NORMAL); - poll_dev_start = 1; - } else { - tot_schedule_cnt++; - schedule(); - idle_cycles = idle_cycles + delta_cycles; - } - } - complete_and_exit(&incoming_ti.has_stopped, 0); -} - -static BOOL -initialize_incoming_thread(void) -{ - if (incoming_started) - return TRUE; - if (!uisthread_start(&incoming_ti, - &process_incoming, NULL, "dev_incoming")) { - return FALSE; - } - incoming_started = TRUE; - return TRUE; -} - -/* Add a new device/channel to the list being processed by - * process_incoming(). - * <interrupt> - indicates the function to call periodically. - * <interrupt_context> - indicates the data to pass to the <interrupt> - * function. - */ -void -uislib_enable_channel_interrupts(u32 bus_no, u32 dev_no, - int (*interrupt)(void *), - void *interrupt_context) -{ - struct device_info *dev; - - dev = find_dev(bus_no, dev_no); - if (!dev) - return; - - down(&poll_dev_lock); - initialize_incoming_thread(); - dev->interrupt = interrupt; - dev->interrupt_context = interrupt_context; - dev->polling = TRUE; - list_add_tail(&dev->list_polling_device_channels, - &poll_dev_chan); - up(&poll_dev_lock); -} -EXPORT_SYMBOL_GPL(uislib_enable_channel_interrupts); - -/* Remove a device/channel from the list being processed by - * process_incoming(). - */ -void -uislib_disable_channel_interrupts(u32 bus_no, u32 dev_no) -{ - struct device_info *dev; - - dev = find_dev(bus_no, dev_no); - if (!dev) - return; - down(&poll_dev_lock); - list_del(&dev->list_polling_device_channels); - dev->polling = FALSE; - dev->interrupt = NULL; - up(&poll_dev_lock); -} -EXPORT_SYMBOL_GPL(uislib_disable_channel_interrupts); - -static void -do_wakeup_polling_device_channels(struct work_struct *dummy) -{ - if (!poll_dev_start) { - poll_dev_start = 1; - wake_up(&poll_dev_wake_q); - } -} - -static DECLARE_WORK(work_wakeup_polling_device_channels, - do_wakeup_polling_device_channels); - -/* Call this function when you want to send a hint to process_incoming() that - * your device might have more requests. - */ -void -uislib_force_channel_interrupt(u32 bus_no, u32 dev_no) -{ - if (en_smart_wakeup == 0) - return; - if (poll_dev_start) - return; - /* The point of using schedule_work() instead of just doing - * the work inline is to force a slight delay before waking up - * the process_incoming() thread. - */ - tot_wakeup_cnt++; - schedule_work(&work_wakeup_polling_device_channels); -} -EXPORT_SYMBOL_GPL(uislib_force_channel_interrupt); - -/*****************************************************/ -/* Module Init & Exit functions */ -/*****************************************************/ - -static int __init -uislib_mod_init(void) -{ - if (!unisys_spar_platform) - return -ENODEV; - - /* initialize global pointers to NULL */ - bus_list = NULL; - bus_list_count = 0; - max_bus_count = 0; - rwlock_init(&bus_list_lock); - virt_control_chan_func = NULL; - - /* Issue VMCALL_GET_CONTROLVM_ADDR to get CtrlChanPhysAddr and - * then map this physical address to a virtual address. */ - POSTCODE_LINUX_2(DRIVER_ENTRY_PC, POSTCODE_SEVERITY_INFO); - - dir_debugfs = debugfs_create_dir(DIR_DEBUGFS_ENTRY, NULL); - if (dir_debugfs) { - info_debugfs_entry = debugfs_create_file( - INFO_DEBUGFS_ENTRY_FN, 0444, dir_debugfs, NULL, - &debugfs_info_fops); - - platformnumber_debugfs_read = debugfs_create_u32( - PLATFORMNUMBER_DEBUGFS_ENTRY_FN, 0444, dir_debugfs, - &platform_no); - - cycles_before_wait_debugfs_read = debugfs_create_u64( - CYCLES_BEFORE_WAIT_DEBUGFS_ENTRY_FN, 0666, dir_debugfs, - &cycles_before_wait); - - smart_wakeup_debugfs_entry = debugfs_create_bool( - SMART_WAKEUP_DEBUGFS_ENTRY_FN, 0666, dir_debugfs, - &en_smart_wakeup); - } - - POSTCODE_LINUX_3(DRIVER_EXIT_PC, 0, POSTCODE_SEVERITY_INFO); - return 0; -} - -static void __exit -uislib_mod_exit(void) -{ - if (debug_buf) { - vfree(debug_buf); - debug_buf = NULL; - } - - debugfs_remove(info_debugfs_entry); - debugfs_remove(smart_wakeup_debugfs_entry); - debugfs_remove(cycles_before_wait_debugfs_read); - debugfs_remove(platformnumber_debugfs_read); - debugfs_remove(dir_debugfs); -} - -module_init(uislib_mod_init); -module_exit(uislib_mod_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Usha Srinivasan"); -MODULE_ALIAS("uislib"); - /* this is extracted during depmod and kept in modules.dep */ |