linux/arch/ppc64/kernel/HvCall.c
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

37 lines
951 B
C

/*
* HvCall.c
* Copyright (C) 2001 Mike Corrigan IBM Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <asm/page.h>
#include <asm/abs_addr.h>
#include <asm/iSeries/HvCall.h>
#include <asm/iSeries/HvCallSc.h>
#include <asm/iSeries/HvTypes.h>
void HvCall_writeLogBuffer(const void *buffer, u64 len)
{
struct HvLpBufferList hv_buf;
u64 left_this_page;
u64 cur = virt_to_abs(buffer);
while (len) {
hv_buf.addr = cur;
left_this_page = ((cur & PAGE_MASK) + PAGE_SIZE) - cur;
if (left_this_page > len)
left_this_page = len;
hv_buf.len = left_this_page;
len -= left_this_page;
HvCall2(HvCallBaseWriteLogBuffer,
virt_to_abs(&hv_buf),
left_this_page);
cur = (cur & PAGE_MASK) + PAGE_SIZE;
}
}