forked from Minki/linux
b920de1b77
Add architecture support for the MN10300/AM33 CPUs produced by MEI to the kernel. This patch also adds board support for the ASB2303 with the ASB2308 daughter board, and the ASB2305. The only processor supported is the MN103E010, which is an AM33v2 core plus on-chip devices. [akpm@linux-foundation.org: nuke cvs control strings] Signed-off-by: Masakazu Urade <urade.masakazu@jp.panasonic.com> Signed-off-by: Koichi Yasutake <yasutake.koichi@jp.panasonic.com> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
117 lines
4.2 KiB
C
117 lines
4.2 KiB
C
/* MN10300 Cache flushing
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*
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* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public Licence
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* as published by the Free Software Foundation; either version
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* 2 of the Licence, or (at your option) any later version.
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*/
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#ifndef _ASM_CACHEFLUSH_H
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#define _ASM_CACHEFLUSH_H
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#ifndef __ASSEMBLY__
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/* Keep includes the same across arches. */
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#include <linux/mm.h>
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/*
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* virtually-indexed cache managment (our cache is physically indexed)
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*/
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#define flush_cache_all() do {} while (0)
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#define flush_cache_mm(mm) do {} while (0)
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#define flush_cache_dup_mm(mm) do {} while (0)
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#define flush_cache_range(mm, start, end) do {} while (0)
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#define flush_cache_page(vma, vmaddr, pfn) do {} while (0)
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#define flush_cache_vmap(start, end) do {} while (0)
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#define flush_cache_vunmap(start, end) do {} while (0)
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#define flush_dcache_page(page) do {} while (0)
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#define flush_dcache_mmap_lock(mapping) do {} while (0)
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#define flush_dcache_mmap_unlock(mapping) do {} while (0)
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/*
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* physically-indexed cache managment
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*/
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#ifndef CONFIG_MN10300_CACHE_DISABLED
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extern void flush_icache_range(unsigned long start, unsigned long end);
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extern void flush_icache_page(struct vm_area_struct *vma, struct page *pg);
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#else
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#define flush_icache_range(start, end) do {} while (0)
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#define flush_icache_page(vma, pg) do {} while (0)
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#endif
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#define flush_icache_user_range(vma, pg, adr, len) \
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flush_icache_range(adr, adr + len)
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#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
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do { \
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memcpy(dst, src, len); \
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flush_icache_page(vma, page); \
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} while (0)
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#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
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memcpy(dst, src, len)
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/*
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* primitive routines
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*/
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#ifndef CONFIG_MN10300_CACHE_DISABLED
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extern void mn10300_icache_inv(void);
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extern void mn10300_dcache_inv(void);
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extern void mn10300_dcache_inv_page(unsigned start);
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extern void mn10300_dcache_inv_range(unsigned start, unsigned end);
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extern void mn10300_dcache_inv_range2(unsigned start, unsigned size);
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#ifdef CONFIG_MN10300_CACHE_WBACK
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extern void mn10300_dcache_flush(void);
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extern void mn10300_dcache_flush_page(unsigned start);
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extern void mn10300_dcache_flush_range(unsigned start, unsigned end);
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extern void mn10300_dcache_flush_range2(unsigned start, unsigned size);
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extern void mn10300_dcache_flush_inv(void);
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extern void mn10300_dcache_flush_inv_page(unsigned start);
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extern void mn10300_dcache_flush_inv_range(unsigned start, unsigned end);
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extern void mn10300_dcache_flush_inv_range2(unsigned start, unsigned size);
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#else
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#define mn10300_dcache_flush() do {} while (0)
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#define mn10300_dcache_flush_page(start) do {} while (0)
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#define mn10300_dcache_flush_range(start, end) do {} while (0)
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#define mn10300_dcache_flush_range2(start, size) do {} while (0)
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#define mn10300_dcache_flush_inv() mn10300_dcache_inv()
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#define mn10300_dcache_flush_inv_page(start) \
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mn10300_dcache_inv_page((start))
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#define mn10300_dcache_flush_inv_range(start, end) \
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mn10300_dcache_inv_range((start), (end))
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#define mn10300_dcache_flush_inv_range2(start, size) \
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mn10300_dcache_inv_range2((start), (size))
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#endif /* CONFIG_MN10300_CACHE_WBACK */
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#else
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#define mn10300_icache_inv() do {} while (0)
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#define mn10300_dcache_inv() do {} while (0)
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#define mn10300_dcache_inv_page(start) do {} while (0)
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#define mn10300_dcache_inv_range(start, end) do {} while (0)
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#define mn10300_dcache_inv_range2(start, size) do {} while (0)
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#define mn10300_dcache_flush() do {} while (0)
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#define mn10300_dcache_flush_inv_page(start) do {} while (0)
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#define mn10300_dcache_flush_inv() do {} while (0)
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#define mn10300_dcache_flush_inv_range(start, end) do {} while (0)
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#define mn10300_dcache_flush_inv_range2(start, size) do {} while (0)
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#define mn10300_dcache_flush_page(start) do {} while (0)
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#define mn10300_dcache_flush_range(start, end) do {} while (0)
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#define mn10300_dcache_flush_range2(start, size) do {} while (0)
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#endif /* CONFIG_MN10300_CACHE_DISABLED */
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/*
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* internal debugging function
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*/
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#ifdef CONFIG_DEBUG_PAGEALLOC
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extern void kernel_map_pages(struct page *page, int numpages, int enable);
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* _ASM_CACHEFLUSH_H */
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