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[ARM] 3269/1: Add ARMv6 MT_NONSHARED_DEVICE mem_types[] index

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Patch from George G. Davis

This Freescale Semiconductor, Inc. contributed patch adds mem_types[]
support for ARMv6 non-shared device memory region attributes. This
implementation provides support for only first level section mapped
non-shared devices. Second level non-shared device mappings are not
yet supported.

Signed-off-by: George G. Davis <gdavis@mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
George G. Davis 2006-01-26 15:21:28 +00:00 committed by Russell King
parent 0367a8d37a
commit 7efb83002b
3 changed files with 8 additions and 0 deletions
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6
arch/arm/mm/mm-armv.c
View file

@ -343,6 +343,12 @@ static struct mem_types mem_types[] __initdata = {
PMD_SECT_AP_WRITE | PMD_SECT_BUFFERABLE |
PMD_SECT_TEX(1),
.domain = DOMAIN_IO,
},
[MT_NONSHARED_DEVICE] = {
.prot_l1 = PMD_TYPE_TABLE,
.prot_sect = PMD_TYPE_SECT | PMD_SECT_NONSHARED_DEV |
PMD_SECT_AP_WRITE,
.domain = DOMAIN_IO,
}
};

1
include/asm-arm/mach/map.h
View file

@ -26,6 +26,7 @@ struct meminfo;
#define MT_MEMORY 5
#define MT_ROM 6
#define MT_IXP2000_DEVICE 7
#define MT_NONSHARED_DEVICE 8
extern void create_memmap_holes(struct meminfo *);
extern void memtable_init(struct meminfo *);

1
include/asm-arm/pgtable.h
View file

@ -168,6 +168,7 @@ extern void __pgd_error(const char *file, int line, unsigned long val);
#define PMD_SECT_WB (PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE)
#define PMD_SECT_MINICACHE (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE)
#define PMD_SECT_WBWA (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE)
#define PMD_SECT_NONSHARED_DEV (PMD_SECT_TEX(2))
/*
* - coarse table (not used)