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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2015-09-01 08:59:28 +0200 |
|---|---|---|
| committer | ard <ard.biesheuvel@linaro.org> | 2015-12-13 19:18:28 +0100 |
| commit | 2937367b8a4b0d46ce3312cb997e4a240b02cf15 (patch) | |
| tree | 44454d1cfd965482d661c92d17264d6affa77a6a /arch/arm/mm/mmu.c | |
| parent | arm64/efi: refactor EFI init and runtime code for reuse by 32-bit ARM (diff) | |
| download | linux-2937367b8a4b0d46ce3312cb997e4a240b02cf15.tar.xz linux-2937367b8a4b0d46ce3312cb997e4a240b02cf15.zip | |
ARM: add support for generic early_ioremap/early_memremap
This enables the generic early_ioremap implementation for ARM.
It uses the fixmap region reserved for kmap. Since early_ioremap
is only supported before paging_init(), and kmap is only supported
afterwards, this is guaranteed not to cause any clashes.
Tested-by: Ryan Harkin <ryan.harkin@linaro.org>
Reviewed-by: Matt Fleming <matt@codeblueprint.co.uk>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Diffstat (limited to 'arch/arm/mm/mmu.c')
| -rw-r--r-- | arch/arm/mm/mmu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 4867f5daf82c..de19f90221e2 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -390,7 +390,7 @@ void __init early_fixmap_init(void) * The early fixmap range spans multiple pmds, for which * we are not prepared: */ - BUILD_BUG_ON((__fix_to_virt(__end_of_permanent_fixed_addresses) >> PMD_SHIFT) + BUILD_BUG_ON((__fix_to_virt(__end_of_early_ioremap_region) >> PMD_SHIFT) != FIXADDR_TOP >> PMD_SHIFT); pmd = fixmap_pmd(FIXADDR_TOP); |