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arm64: Factor out fixmap initialization from ioremap

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The fixmap API was originally added for arm64 for
early_ioremap purposes. It can be used for other purposes too
so move the initialization from ioremap to somewhere more
generic. This makes it obvious where the fixmap is being set
up and allows for a cleaner implementation of __set_fixmap.

Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Laura Abbott
2014-11-21 21:50:42 +00:00
committed by Will Deacon
parent c3684fbb44
commit af86e5974d
4 changed files with 102 additions and 93 deletions
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7
arch/arm64/include/asm/fixmap.h
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@@ -56,10 +56,11 @@ enum fixed_addresses {
#define FIXMAP_PAGE_IO __pgprot(PROT_DEVICE_nGnRE)
extern void __early_set_fixmap(enum fixed_addresses idx,
phys_addr_t phys, pgprot_t flags);
void __init early_fixmap_init(void);
#define __set_fixmap __early_set_fixmap
#define __early_set_fixmap __set_fixmap
extern void __set_fixmap(enum fixed_addresses idx, phys_addr_t phys, pgprot_t prot);
#include <asm-generic/fixmap.h>