OXIESEC PANEL

Name	Size	Modified	Perms
📁 ..	-	05/09/2024 07:14:13 AM	rwxr-xr-x
📄 Kbuild	997 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 asm-offsets.h	35 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 atomic.h	3.02 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 barrier.h	203 bytes	06/16/2023 05:32:39 PM	rw-r--r--
📁 bitops	-	05/09/2024 07:14:16 AM	rwxr-xr-x
📄 bitops.h	1.5 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 cache.h	888 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 cacheflush.h	3.37 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 cmpxchg.h	3.92 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 cpuinfo.h	970 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 delay.h	670 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 dma-mapping.h	968 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 elf.h	2.02 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 fixmap.h	2.74 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 futex.h	2.24 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 io.h	1.31 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 irq.h	835 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 irqflags.h	866 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 linkage.h	764 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 mmu.h	728 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 mmu_context.h	1.3 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 page.h	2.54 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 pgalloc.h	2.57 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 pgtable.h	13.96 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 processor.h	2.7 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 ptrace.h	3.33 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 serial.h	1.11 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 smp.h	822 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 spinlock.h	985 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 spinlock_types.h	188 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 spr.h	1.17 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 spr_defs.h	22.91 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 string.h	324 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 syscall.h	1.91 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 syscalls.h	1.04 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 thread_info.h	3.85 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 time.h	627 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 timex.h	914 bytes	06/16/2023 05:32:39 PM	rw-r--r--
📄 tlb.h	1.01 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 tlbflush.h	2.05 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 uaccess.h	7.98 KB	06/16/2023 05:32:39 PM	rw-r--r--
📄 unaligned.h	1.7 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 unwinder.h	557 bytes	01/28/2018 09:20:33 PM	rw-r--r--

Editing: fixmap.h

/*
 * OpenRISC Linux
 *
 * Linux architectural port borrowing liberally from similar works of
 * others.  All original copyrights apply as per the original source
 * declaration.
 *
 * OpenRISC implementation:
 * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com>
 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
 * et al.
 *
 * 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.
 */

#ifndef __ASM_OPENRISC_FIXMAP_H
#define __ASM_OPENRISC_FIXMAP_H

/* Why exactly do we need 2 empty pages between the top of the fixed
 * addresses and the top of virtual memory?  Something is using that
 * memory space but not sure what right now... If you find it, leave
 * a comment here.
 */
#define FIXADDR_TOP	((unsigned long) (-2*PAGE_SIZE))

#include <linux/kernel.h>
#include <linux/bug.h>
#include <asm/page.h>

/*
 * On OpenRISC we use these special fixed_addresses for doing ioremap
 * early in the boot process before memory initialization is complete.
 * This is used, in particular, by the early serial console code.
 *
 * It's not really 'fixmap', per se, but fits loosely into the same
 * paradigm.
 */
enum fixed_addresses {
	/*
	 * FIX_IOREMAP entries are useful for mapping physical address
	 * space before ioremap() is useable, e.g. really early in boot
	 * before kmalloc() is working.
	 */
#define FIX_N_IOREMAPS  32
	FIX_IOREMAP_BEGIN,
	FIX_IOREMAP_END = FIX_IOREMAP_BEGIN + FIX_N_IOREMAPS - 1,
	__end_of_fixed_addresses
};

#define FIXADDR_SIZE		(__end_of_fixed_addresses << PAGE_SHIFT)
/* FIXADDR_BOTTOM might be a better name here... */
#define FIXADDR_START		(FIXADDR_TOP - FIXADDR_SIZE)

#define __fix_to_virt(x)	(FIXADDR_TOP - ((x) << PAGE_SHIFT))
#define __virt_to_fix(x)	((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)

/*
 * 'index to address' translation. If anyone tries to use the idx
 * directly without tranlation, we catch the bug with a NULL-deference
 * kernel oops. Illegal ranges of incoming indices are caught too.
 */
static __always_inline unsigned long fix_to_virt(const unsigned int idx)
{
	/*
	 * this branch gets completely eliminated after inlining,
	 * except when someone tries to use fixaddr indices in an
	 * illegal way. (such as mixing up address types or using
	 * out-of-range indices).
	 *
	 * If it doesn't get removed, the linker will complain
	 * loudly with a reasonably clear error message..
	 */
	if (idx >= __end_of_fixed_addresses)
		BUG();

return __fix_to_virt(idx);
}

static inline unsigned long virt_to_fix(const unsigned long vaddr)
{
	BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START);
	return __virt_to_fix(vaddr);
}

#endif