linux/arch/sh/mm/uncached.c
Masahiro Yamada 87dfb311b7 treewide: replace #include <asm/sizes.h> with #include <linux/sizes.h>
Since commit dccd2304cc ("ARM: 7430/1: sizes.h: move from asm-generic
to <linux/sizes.h>"), <asm/sizes.h> and <asm-generic/sizes.h> are just
wrappers of <linux/sizes.h>.

This commit replaces all <asm/sizes.h> and <asm-generic/sizes.h> to
prepare for the removal.

Link: http://lkml.kernel.org/r/1553267665-27228-1-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-05-14 19:52:52 -07:00

45 lines
1.2 KiB
C

// SPDX-License-Identifier: GPL-2.0
#include <linux/init.h>
#include <linux/module.h>
#include <linux/sizes.h>
#include <asm/page.h>
#include <asm/addrspace.h>
/*
* This is the offset of the uncached section from its cached alias.
*
* Legacy platforms handle trivial transitions between cached and
* uncached segments by making use of the 1:1 mapping relationship in
* 512MB lowmem, others via a special uncached mapping.
*
* Default value only valid in 29 bit mode, in 32bit mode this will be
* updated by the early PMB initialization code.
*/
unsigned long cached_to_uncached = SZ_512M;
unsigned long uncached_size = SZ_512M;
unsigned long uncached_start, uncached_end;
EXPORT_SYMBOL(uncached_start);
EXPORT_SYMBOL(uncached_end);
int virt_addr_uncached(unsigned long kaddr)
{
return (kaddr >= uncached_start) && (kaddr < uncached_end);
}
EXPORT_SYMBOL(virt_addr_uncached);
void __init uncached_init(void)
{
#if defined(CONFIG_29BIT) || !defined(CONFIG_MMU)
uncached_start = P2SEG;
#else
uncached_start = memory_end;
#endif
uncached_end = uncached_start + uncached_size;
}
void __init uncached_resize(unsigned long size)
{
uncached_size = size;
uncached_end = uncached_start + uncached_size;
}