Merge branches 'sched-fixes-for-linus-2' and 'core-fixes-for-linus-2' of git://git...
[linux-2.6] / arch / powerpc / platforms / iseries / hvlog.c
1 /*
2  * Copyright (C) 2001  Mike Corrigan IBM Corporation
3  * 
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; either version 2 of the License, or
7  * (at your option) any later version.
8  */
9
10 #include <asm/page.h>
11 #include <asm/abs_addr.h>
12 #include <asm/iseries/hv_call.h>
13 #include <asm/iseries/hv_call_sc.h>
14 #include <asm/iseries/hv_types.h>
15
16
17 void HvCall_writeLogBuffer(const void *buffer, u64 len)
18 {
19         struct HvLpBufferList hv_buf;
20         u64 left_this_page;
21         u64 cur = virt_to_abs(buffer);
22
23         while (len) {
24                 hv_buf.addr = cur;
25                 left_this_page = ((cur & HW_PAGE_MASK) + HW_PAGE_SIZE) - cur;
26                 if (left_this_page > len)
27                         left_this_page = len;
28                 hv_buf.len = left_this_page;
29                 len -= left_this_page;
30                 HvCall2(HvCallBaseWriteLogBuffer,
31                                 virt_to_abs(&hv_buf),
32                                 left_this_page);
33                 cur = (cur & HW_PAGE_MASK) + HW_PAGE_SIZE;
34         }
35 }