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sh: Fixup SHMLBA definition for SH7705.

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We need this set to something sensible anywhere were we have
an aliasing dcache..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2006-09-27 15:29:18 +09:00
parent d7cdc9e8ac
commit c470662854
5 changed files with 40 additions and 83 deletions
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16
include/asm-sh/cpu-sh2/shmparam.h
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@ -1,16 +0,0 @@
/*
* include/asm-sh/cpu-sh2/shmparam.h
*
* Copyright (C) 2003 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#ifndef __ASM_CPU_SH2_SHMPARAM_H
#define __ASM_CPU_SH2_SHMPARAM_H
#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */
#endif /* __ASM_CPU_SH2_SHMPARAM_H */

52
include/asm-sh/cpu-sh3/cacheflush.h
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@ -35,47 +35,41 @@
/* 32KB cache, 4kb PAGE sizes need to check bit 12 */
#define CACHE_ALIAS 0x00001000
extern void flush_cache_all(void);
extern void flush_cache_mm(struct mm_struct *mm);
extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
#define PG_mapped PG_arch_1
void flush_cache_all(void);
void flush_cache_mm(struct mm_struct *mm);
void flush_cache_range(struct vm_area_struct *vma, unsigned long start,
unsigned long end);
extern void flush_cache_page(struct vm_area_struct *vma, unsigned long addr, unsigned long pfn);
extern void flush_dcache_page(struct page *pg);
extern void flush_icache_range(unsigned long start, unsigned long end);
extern void flush_icache_page(struct vm_area_struct *vma, struct page *page);
void flush_cache_page(struct vm_area_struct *vma, unsigned long addr, unsigned long pfn);
void flush_dcache_page(struct page *pg);
void flush_icache_range(unsigned long start, unsigned long end);
void flush_icache_page(struct vm_area_struct *vma, struct page *page);
#else
#define flush_cache_all() do { } while (0)
#define flush_cache_mm(mm) do { } while (0)
#define flush_cache_range(vma, start, end) do { } while (0)
#define flush_cache_page(vma, vmaddr, pfn) do { } while (0)
#define flush_dcache_page(page) do { } while (0)
#define flush_icache_range(start, end) do { } while (0)
#define flush_icache_page(vma,pg) do { } while (0)
#endif
#define flush_dcache_mmap_lock(mapping) do { } while (0)
#define flush_dcache_mmap_unlock(mapping) do { } while (0)
/* SH3 has unified cache so no special action needed here */
#define flush_cache_sigtramp(vaddr) do { } while (0)
#define flush_page_to_ram(page) do { } while (0)
#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
#define p3_cache_init() do { } while (0)
#define PG_mapped PG_arch_1
/* We provide our own get_unmapped_area to avoid cache alias issue */
/*
* We provide our own get_unmapped_area to avoid cache aliasing issues
* on SH7705 with a 32KB cache, and to page align addresses in the
* non-aliasing case.
*/
#define HAVE_ARCH_UNMAPPED_AREA
#else
#define flush_cache_all() do { } while (0)
#define flush_cache_mm(mm) do { } while (0)
#define flush_cache_range(vma, start, end) do { } while (0)
#define flush_cache_page(vma, vmaddr, pfn) do { } while (0)
#define flush_dcache_page(page) do { } while (0)
#define flush_dcache_mmap_lock(mapping) do { } while (0)
#define flush_dcache_mmap_unlock(mapping) do { } while (0)
#define flush_icache_range(start, end) do { } while (0)
#define flush_icache_page(vma,pg) do { } while (0)
#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
#define flush_cache_sigtramp(vaddr) do { } while (0)
#define p3_cache_init() do { } while (0)
#endif
#endif /* __ASM_CPU_SH3_CACHEFLUSH_H */

16
include/asm-sh/cpu-sh3/shmparam.h
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@ -1,16 +0,0 @@
/*
* include/asm-sh/cpu-sh3/shmparam.h
*
* Copyright (C) 1999 Niibe Yutaka
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#ifndef __ASM_CPU_SH3_SHMPARAM_H
#define __ASM_CPU_SH3_SHMPARAM_H
#define SHMLBA PAGE_SIZE /* attach addr a multiple of this */
#endif /* __ASM_CPU_SH3_SHMPARAM_H */

19
include/asm-sh/cpu-sh4/shmparam.h
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@ -1,19 +0,0 @@
/*
* include/asm-sh/cpu-sh4/shmparam.h
*
* Copyright (C) 1999 Niibe Yutaka
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#ifndef __ASM_CPU_SH4_SHMPARAM_H
#define __ASM_CPU_SH4_SHMPARAM_H
/*
* SH-4 has D-cache alias issue
*/
#define SHMLBA (PAGE_SIZE*4) /* attach addr a multiple of this */
#endif /* __ASM_CPU_SH4_SHMPARAM_H */

20
include/asm-sh/shmparam.h
View file

@ -1,8 +1,22 @@
/*
* include/asm-sh/shmparam.h
*
* Copyright (C) 1999 Niibe Yutaka
* Copyright (C) 2006 Paul Mundt
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#ifndef __ASM_SH_SHMPARAM_H
#define __ASM_SH_SHMPARAM_H
#ifdef __KERNEL__
#include <asm/cpu/shmparam.h>
/*
* SH-4 and SH-3 7705 have an aliasing dcache. Bump this up to a sensible value
* for everyone, and work out the specifics from the probed cache descriptor.
*/
#define SHMLBA 0x4000 /* attach addr a multiple of this */
#define __ARCH_FORCE_SHMLBA
#endif /* __KERNEL__ */
#endif /* __ASM_SH_SHMPARAM_H */