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[linux] Add nap

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Signed-off-by: Piotr Jaroszyński <p.jaroszynski@gmail.com>
Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Piotr Jaroszyński 2010-05-26 18:54:36 +02:00 committed by Michael Brown
parent 6ec1c509e4
commit 9ab6761b9c
4 changed files with 60 additions and 0 deletions
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1
src/config/defaults/linux.h
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@ -11,6 +11,7 @@
#define TIMER_LINUX
#define UACCESS_LINUX
#define UMALLOC_LINUX
#define NAP_LINUX
#define IMAGE_SCRIPT

18
src/include/ipxe/linux/linux_nap.h Normal file
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@ -0,0 +1,18 @@
#ifndef _IPXE_LINUX_NAP_H
#define _IPXE_LINUX_NAP_H
/** @file
*
* Linux CPU sleeping
*
*/
FILE_LICENCE(GPL2_OR_LATER);
#ifdef NAP_LINUX
#define NAP_PREFIX_linux
#else
#define NAP_PREFIX_linux __linux_
#endif
#endif /* _IPXE_LINUX_NAP_H */

1
src/include/ipxe/nap.h
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@ -43,6 +43,7 @@ FILE_LICENCE ( GPL2_OR_LATER );
/* Include all architecture-independent I/O API headers */
#include <ipxe/null_nap.h>
#include <ipxe/linux/linux_nap.h>
/* Include all architecture-dependent I/O API headers */
#include <bits/nap.h>

40
src/interface/linux/linux_nap.c Normal file
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@ -0,0 +1,40 @@
/*
* Copyright (C) 2010 Piotr Jaroszyński <p.jaroszynski@gmail.com>
*
* 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 any later version.
*
* This program is distributed in the hope that 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
FILE_LICENCE(GPL2_OR_LATER);
#include <ipxe/nap.h>
#include <linux_api.h>
/** @file
*
* iPXE CPU sleeping API for linux
*
*/
/**
* Sleep until next CPU interrupt
*
*/
static void linux_cpu_nap(void)
{
linux_usleep(0);
}
PROVIDE_NAP(linux, cpu_nap, linux_cpu_nap);