![Greg Kroah-Hartman](/assets/img/avatar_default.png)
GUID should not be a typedef. As proof of the problem of typedefs, look, we are passing 2 of these as a value in functions! Bah... Cc: Hank Janssen <hjanssen@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
70 lines
2 KiB
C
70 lines
2 KiB
C
/*
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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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#ifndef _OSD_H_
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#define _OSD_H_
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/* Defines */
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#define ALIGN_UP(value, align) (((value) & (align-1)) ? \
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(((value) + (align-1)) & ~(align-1)) : \
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(value))
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#define ALIGN_DOWN(value, align) ((value) & ~(align-1))
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#define NUM_PAGES_SPANNED(addr, len) ((ALIGN_UP(addr+len, PAGE_SIZE) - \
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ALIGN_DOWN(addr, PAGE_SIZE)) >> \
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PAGE_SHIFT)
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#define LOWORD(dw) ((unsigned short)(dw))
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#define HIWORD(dw) ((unsigned short)(((unsigned int) (dw) >> 16) & 0xFFFF))
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struct hv_guid {
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unsigned char data[16];
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};
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struct osd_waitevent {
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int condition;
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wait_queue_head_t event;
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};
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/* Osd routines */
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extern void *osd_VirtualAllocExec(unsigned int size);
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extern void *osd_PageAlloc(unsigned int count);
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extern void osd_PageFree(void *page, unsigned int count);
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extern struct osd_waitevent *osd_WaitEventCreate(void);
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extern void osd_WaitEventSet(struct osd_waitevent *waitEvent);
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extern int osd_WaitEventWait(struct osd_waitevent *waitEvent);
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/* If >0, waitEvent got signaled. If ==0, timeout. If < 0, error */
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extern int osd_WaitEventWaitEx(struct osd_waitevent *waitEvent,
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u32 TimeoutInMs);
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int osd_schedule_callback(struct workqueue_struct *wq,
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void (*func)(void *),
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void *data);
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#endif /* _OSD_H_ */
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