Merge branch 'master' into for-linus

1 files changed, 69 insertions, 0 deletions

diff --git a/drivers/staging/hv/osd.h b/drivers/staging/hv/osd.h
new file mode 100644
index 0000000..9504604
--- /dev/null
+++ b/drivers/staging/hv/osd.h
@@ -0,0 +1,69 @@
+/*
+ *
+ * Copyright (c) 2009, Microsoft Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  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., 59 Temple
+ * Place - Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * Authors:
+ *   Haiyang Zhang <haiyangz@microsoft.com>
+ *   Hank Janssen  <hjanssen@microsoft.com>
+ *
+ */
+
+
+#ifndef _OSD_H_
+#define _OSD_H_
+
+
+/* Defines */
+#define ALIGN_UP(value, align)	(((value) & (align-1)) ?		\
+				 (((value) + (align-1)) & ~(align-1)) :	\
+				 (value))
+#define ALIGN_DOWN(value, align)	((value) & ~(align-1))
+#define NUM_PAGES_SPANNED(addr, len)	((ALIGN_UP(addr+len, PAGE_SIZE) - \
+					 ALIGN_DOWN(addr, PAGE_SIZE)) >>  \
+					 PAGE_SHIFT)
+
+#define LOWORD(dw)	((unsigned short)(dw))
+#define HIWORD(dw)	((unsigned short)(((unsigned int) (dw) >> 16) & 0xFFFF))
+
+struct hv_guid {
+	unsigned char data[16];
+};
+
+struct osd_waitevent {
+	int condition;
+	wait_queue_head_t event;
+};
+
+/* Osd routines */
+
+extern void *osd_VirtualAllocExec(unsigned int size);
+
+extern void *osd_PageAlloc(unsigned int count);
+extern void osd_PageFree(void *page, unsigned int count);
+
+extern struct osd_waitevent *osd_WaitEventCreate(void);
+extern void osd_WaitEventSet(struct osd_waitevent *waitEvent);
+extern int osd_WaitEventWait(struct osd_waitevent *waitEvent);
+
+/* If >0, waitEvent got signaled. If ==0, timeout. If < 0, error */
+extern int osd_WaitEventWaitEx(struct osd_waitevent *waitEvent,
+			       u32 TimeoutInMs);
+
+int osd_schedule_callback(struct workqueue_struct *wq,
+			  void (*func)(void *),
+			  void *data);
+
+#endif /* _OSD_H_ */