File: [local] / prex-old / boot / i386 / pc / platform.h (download)
Revision 1.1.1.1 (vendor branch), Tue Jun 3 09:38:41 2008 UTC (16 years, 2 months ago) by nbrk
Branch: MAIN, KOHSUKE
CVS Tags: PREX_0_7_BASE, HEAD Branch point for: PREX_0_8_BASE
Changes since 1.1: +0 -0 lines
Yeah, this is an initial import of Prex, portable real-time microkernel
operating system. I wanna hack it for non-profit but fun, so let it in.
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/*-
* Copyright (c) 2005-2006, Kohsuke Ohtani
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _PC_PLATFORM_H
#define _PC_PLATFORM_H
#ifdef CONFIG_MMU
#define PAGE_OFFSET 0x80000000
#else
#define PAGE_OFFSET 0x00000000
#endif
#define BOOT_INFO 0x00002000
#define BOOT_INFO_SIZE 0x00000800
#define BOOT_STACK 0x00002800
#define ARCHIVE_START 0x00100000
#ifndef __ASSEMBLY__
#include <boot.h>
/*
* Page mapping
*/
#define phys_to_virt(p_addr) (void *)((u_long)(p_addr) + PAGE_OFFSET)
#define virt_to_phys(v_addr) (void *)((u_long)(v_addr) - PAGE_OFFSET)
#if defined(DEBUG) && defined(CONFIG_DIAG_BOCHS)
/*
* Output Bochs virtual debug port.
*/
static __inline void
putc(int c)
{
__asm__ __volatile__(
"inb $0xe9, %%al\n\t"
"cmpb $0xe9, %%al\n\t"
"jne 1f\n\t"
"movb %%bl, %%al\n\t"
"outb %%al, $0xe9\n\t"
"1:\n\t"
:
: "b" (c));
}
#endif
extern void setup_bootinfo(struct boot_info **);
#endif /* !__ASSEMBLY__ */
#endif /* !_PC_PLATFORM_H */