mirror of
https://gitee.com/bianbu-linux/linux-6.6
synced 2025-04-24 14:07:52 -04:00
e6926a4d1c
The sh architecture defines ARCH_DMA_MINALIGN in asm/page.h. Move it to asm/cache.h to allow a generic ARCH_DMA_MINALIGN definition in linux/cache.h without redefine errors/warnings. Link: https://lkml.kernel.org/r/20230613155245.1228274-4-catalin.marinas@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Rich Felker <dalias@libc.org> Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Cc: Christophe Leroy <christophe.leroy@csgroup.eu> Cc: kernel test robot <lkp@intel.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/* $Id: cache.h,v 1.6 2004/03/11 18:08:05 lethal Exp $
|
|
*
|
|
* include/asm-sh/cache.h
|
|
*
|
|
* Copyright 1999 (C) Niibe Yutaka
|
|
* Copyright 2002, 2003 (C) Paul Mundt
|
|
*/
|
|
#ifndef __ASM_SH_CACHE_H
|
|
#define __ASM_SH_CACHE_H
|
|
|
|
#include <linux/init.h>
|
|
#include <cpu/cache.h>
|
|
|
|
#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
|
|
|
|
/*
|
|
* Some drivers need to perform DMA into kmalloc'ed buffers
|
|
* and so we have to increase the kmalloc minalign for this.
|
|
*/
|
|
#define ARCH_DMA_MINALIGN L1_CACHE_BYTES
|
|
|
|
#define __read_mostly __section(".data..read_mostly")
|
|
|
|
#ifndef __ASSEMBLY__
|
|
struct cache_info {
|
|
unsigned int ways; /* Number of cache ways */
|
|
unsigned int sets; /* Number of cache sets */
|
|
unsigned int linesz; /* Cache line size (bytes) */
|
|
|
|
unsigned int way_size; /* sets * line size */
|
|
|
|
/*
|
|
* way_incr is the address offset for accessing the next way
|
|
* in memory mapped cache array ops.
|
|
*/
|
|
unsigned int way_incr;
|
|
unsigned int entry_shift;
|
|
unsigned int entry_mask;
|
|
|
|
/*
|
|
* Compute a mask which selects the address bits which overlap between
|
|
* 1. those used to select the cache set during indexing
|
|
* 2. those in the physical page number.
|
|
*/
|
|
unsigned int alias_mask;
|
|
unsigned int n_aliases; /* Number of aliases */
|
|
|
|
unsigned long flags;
|
|
};
|
|
#endif /* __ASSEMBLY__ */
|
|
#endif /* __ASM_SH_CACHE_H */
|