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Viewing changes to arch/powerpc/platforms/iseries/hvlog.c

  • Committer: Package Import Robot
  • Author(s): Alessio Igor Bogani
  • Date: 2011-10-26 11:13:05 UTC
  • Revision ID: package-import@ubuntu.com-20111026111305-tz023xykf0i6eosh
Tags: upstream-3.2.0
Import upstream version 3.2.0

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