projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| ab057781 HJ |
1 | /* |
| 2 | * | |
| 3 | * Copyright (c) 2009, Microsoft Corporation. | |
| 4 | * | |
| 5 | * This program is free software; you can redistribute it and/or modify it | |
| 6 | * under the terms and conditions of the GNU General Public License, | |
| 7 | * version 2, as published by the Free Software Foundation. | |
| 8 | * | |
| 9 | * This program is distributed in the hope it will be useful, but WITHOUT | |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 12 | * more details. | |
| 13 | * | |
| 14 | * You should have received a copy of the GNU General Public License along with | |
| 15 | * this program; if not, write to the Free Software Foundation, Inc., 59 Temple | |
| 16 | * Place - Suite 330, Boston, MA 02111-1307 USA. | |
| 17 | * | |
| 18 | * Authors: | |
| 19 | * Haiyang Zhang <[email protected]> | |
| 20 | * Hank Janssen <[email protected]> | |
| 21 | * | |
| 22 | */ | |
| 23 | ||
| 24 | ||
| 25 | #ifndef _OSD_H_ | |
| 26 | #define _OSD_H_ | |
| 27 | ||
| 9fcfeab4 | 28 | #include <linux/workqueue.h> |
| 454f18a9 BP |
29 | |
| 30 | /* Defines */ | |
| 0ccafb36 GKH |
31 | #define ALIGN_UP(value, align) (((value) & (align-1)) ? \ |
| 32 | (((value) + (align-1)) & ~(align-1)) : \ | |
| 33 | (value)) | |
| 34 | #define ALIGN_DOWN(value, align) ((value) & ~(align-1)) | |
| 35 | #define NUM_PAGES_SPANNED(addr, len) ((ALIGN_UP(addr+len, PAGE_SIZE) - \ | |
| 36 | ALIGN_DOWN(addr, PAGE_SIZE)) >> \ | |
| 37 | PAGE_SHIFT) | |
| 454f18a9 | 38 | |
| 0ccafb36 GKH |
39 | #define LOWORD(dw) ((unsigned short)(dw)) |
| 40 | #define HIWORD(dw) ((unsigned short)(((unsigned int) (dw) >> 16) & 0xFFFF)) | |
| ab057781 | 41 | |
| caf26a31 GKH |
42 | struct hv_guid { |
| 43 | unsigned char data[16]; | |
| 44 | }; | |
| ab057781 | 45 | |
| aedb444a | 46 | struct osd_waitevent { |
| 0ccafb36 | 47 | int condition; |
| aedb444a BP |
48 | wait_queue_head_t event; |
| 49 | }; | |
| 50 | ||
| 454f18a9 BP |
51 | /* Osd routines */ |
| 52 | ||
| bfc30aae | 53 | extern void *osd_VirtualAllocExec(unsigned int size); |
| ab057781 | 54 | |
| bfc30aae | 55 | extern void *osd_PageAlloc(unsigned int count); |
| 0ccafb36 | 56 | extern void osd_PageFree(void *page, unsigned int count); |
| ab057781 | 57 | |
| bfc30aae GKH |
58 | extern struct osd_waitevent *osd_WaitEventCreate(void); |
| 59 | extern void osd_WaitEventSet(struct osd_waitevent *waitEvent); | |
| 60 | extern int osd_WaitEventWait(struct osd_waitevent *waitEvent); | |
| ab057781 | 61 | |
| aedb444a | 62 | /* If >0, waitEvent got signaled. If ==0, timeout. If < 0, error */ |
| 0ccafb36 GKH |
63 | extern int osd_WaitEventWaitEx(struct osd_waitevent *waitEvent, |
| 64 | u32 TimeoutInMs); | |
| ab057781 | 65 | |
| de65a384 BP |
66 | int osd_schedule_callback(struct workqueue_struct *wq, |
| 67 | void (*func)(void *), | |
| 68 | void *data); | |
| ab057781 | 69 | |
| 454f18a9 | 70 | #endif /* _OSD_H_ */ |