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@@ -1,194 +0,0 @@
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-/*
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- *
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- * Copyright (c) 2009, Microsoft Corporation.
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms and conditions of the GNU General Public License,
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- * version 2, as published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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- * more details.
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- *
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- * You should have received a copy of the GNU General Public License along with
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- * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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- * Place - Suite 330, Boston, MA 02111-1307 USA.
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- *
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- * Authors:
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- * Haiyang Zhang <haiyangz@microsoft.com>
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- * Hank Janssen <hjanssen@microsoft.com>
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- *
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- */
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-
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-#include <linux/module.h>
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-#include <linux/init.h>
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-#include <linux/types.h>
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-#include <linux/mm.h>
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-#include <linux/highmem.h>
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-#include <linux/vmalloc.h>
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-#include <linux/ioport.h>
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-#include <linux/irq.h>
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-#include <linux/interrupt.h>
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-#include <linux/sched.h>
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-#include <linux/wait.h>
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-#include <linux/spinlock.h>
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-#include <linux/workqueue.h>
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-#include <linux/kernel.h>
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-#include <linux/jiffies.h>
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-#include <linux/delay.h>
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-#include <linux/time.h>
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-#include <linux/io.h>
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-#include <linux/bitops.h>
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-#include <linux/slab.h>
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-#include "osd.h"
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-
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-void *osd_virtual_alloc_exec(unsigned int size)
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-{
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-#ifdef __x86_64__
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- return __vmalloc(size, GFP_KERNEL, PAGE_KERNEL_EXEC);
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-#else
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- return __vmalloc(size, GFP_KERNEL,
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- __pgprot(__PAGE_KERNEL & (~_PAGE_NX)));
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-#endif
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-}
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-
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-/**
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- * osd_page_alloc() - Allocate pages
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- * @count: Total number of Kernel pages you want to allocate
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- *
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- * Tries to allocate @count number of consecutive free kernel pages.
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- * And if successful, it will set the pages to 0 before returning.
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- * If successfull it will return pointer to the @count pages.
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- * Mainly used by Hyper-V drivers.
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- */
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-void *osd_page_alloc(unsigned int count)
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-{
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- void *p;
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-
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- p = (void *)__get_free_pages(GFP_KERNEL, get_order(count * PAGE_SIZE));
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- if (p)
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- memset(p, 0, count * PAGE_SIZE);
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- return p;
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-
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- /* struct page* page = alloc_page(GFP_KERNEL|__GFP_ZERO); */
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- /* void *p; */
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-
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- /* BUGBUG: We need to use kmap in case we are in HIMEM region */
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- /* p = page_address(page); */
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- /* if (p) memset(p, 0, PAGE_SIZE); */
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- /* return p; */
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-}
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-EXPORT_SYMBOL_GPL(osd_page_alloc);
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-
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-/**
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- * osd_page_free() - Free pages
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- * @page: Pointer to the first page to be freed
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- * @count: Total number of Kernel pages you free
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- *
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- * Frees the pages allocated by osd_page_alloc()
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- * Mainly used by Hyper-V drivers.
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- */
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-void osd_page_free(void *page, unsigned int count)
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-{
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- free_pages((unsigned long)page, get_order(count * PAGE_SIZE));
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- /*struct page* p = virt_to_page(page);
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- __free_page(p);*/
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-}
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-EXPORT_SYMBOL_GPL(osd_page_free);
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-
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-/**
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- * osd_waitevent_create() - Create the event queue
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- *
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- * Allocates memory for a &struct osd_waitevent. And then calls
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- * init_waitqueue_head to set up the wait queue for the event.
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- * This structure is usually part of a another structure that contains
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- * the actual Hyper-V device driver structure.
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- *
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- * Returns pointer to &struct osd_waitevent
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- * Mainly used by Hyper-V drivers.
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- */
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-struct osd_waitevent *osd_waitevent_create(void)
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-{
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- struct osd_waitevent *wait = kmalloc(sizeof(struct osd_waitevent),
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- GFP_KERNEL);
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- if (!wait)
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- return NULL;
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-
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- wait->condition = 0;
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- init_waitqueue_head(&wait->event);
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- return wait;
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-}
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-EXPORT_SYMBOL_GPL(osd_waitevent_create);
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-
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-
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-/**
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- * osd_waitevent_set() - Wake up the process
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- * @wait_event: Structure to event to be woken up
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- *
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- * @wait_event is of type &struct osd_waitevent
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- *
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- * Wake up the sleeping process so it can do some work.
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- * And set condition indicator in &struct osd_waitevent to indicate
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- * the process is in a woken state.
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- *
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- * Only used by Network and Storage Hyper-V drivers.
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- */
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-void osd_waitevent_set(struct osd_waitevent *wait_event)
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-{
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- wait_event->condition = 1;
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- wake_up_interruptible(&wait_event->event);
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-}
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-EXPORT_SYMBOL_GPL(osd_waitevent_set);
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-
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-/**
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- * osd_waitevent_wait() - Wait for event till condition is true
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- * @wait_event: Structure to event to be put to sleep
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- *
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- * @wait_event is of type &struct osd_waitevent
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- *
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- * Set up the process to sleep until waitEvent->condition get true.
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- * And set condition indicator in &struct osd_waitevent to indicate
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- * the process is in a sleeping state.
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- *
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- * Returns the status of 'wait_event_interruptible()' system call
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- *
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- * Mainly used by Hyper-V drivers.
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- */
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-int osd_waitevent_wait(struct osd_waitevent *wait_event)
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-{
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- int ret = 0;
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-
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- ret = wait_event_interruptible(wait_event->event,
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- wait_event->condition);
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- wait_event->condition = 0;
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- return ret;
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-}
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-EXPORT_SYMBOL_GPL(osd_waitevent_wait);
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-
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-/**
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- * osd_waitevent_waitex() - Wait for event or timeout for process wakeup
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- * @wait_event: Structure to event to be put to sleep
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- * @timeout_in_ms: Total number of Milliseconds to wait before waking up
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- *
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- * @wait_event is of type &struct osd_waitevent
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- * Set up the process to sleep until @waitEvent->condition get true or
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- * @timeout_in_ms (Time out in Milliseconds) has been reached.
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- * And set condition indicator in &struct osd_waitevent to indicate
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- * the process is in a sleeping state.
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- *
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- * Returns the status of 'wait_event_interruptible_timeout()' system call
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- *
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- * Mainly used by Hyper-V drivers.
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- */
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-int osd_waitevent_waitex(struct osd_waitevent *wait_event, u32 timeout_in_ms)
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-{
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- int ret = 0;
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-
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- ret = wait_event_interruptible_timeout(wait_event->event,
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- wait_event->condition,
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- msecs_to_jiffies(timeout_in_ms));
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- wait_event->condition = 0;
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- return ret;
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-}
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-EXPORT_SYMBOL_GPL(osd_waitevent_waitex);
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K. Y. Srinivasan