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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2016-02-16 15:52:35 +0300 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2016-02-18 21:16:16 +0300 |
| commit | 324420bf91f60582bb481133db9547111768ef17 (patch) | |
| tree | 4cfcb31a6d57dfb88ed953f78ac17ba08baf2af1 /arch/arm64/Kconfig | |
| parent | 03336b1df9929e5d9c28fd9768948b6151cb046c (diff) | |
| download | linux-324420bf91f60582bb481133db9547111768ef17.tar.xz | |
arm64: add support for ioremap() block mappings
This wires up the existing generic huge-vmap feature, which allows
ioremap() to use PMD or PUD sized block mappings. It also adds support
to the unmap path for dealing with block mappings, which will allow us
to unmap the __init region using unmap_kernel_range() in a subsequent
patch.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/Kconfig')
| -rw-r--r-- | arch/arm64/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 3d9cab156740..cfa1cc90ebf4 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -50,6 +50,7 @@ config ARM64 select HAVE_ALIGNED_STRUCT_PAGE if SLUB select HAVE_ARCH_AUDITSYSCALL select HAVE_ARCH_BITREVERSE + select HAVE_ARCH_HUGE_VMAP select HAVE_ARCH_JUMP_LABEL select HAVE_ARCH_KASAN if SPARSEMEM_VMEMMAP && !(ARM64_16K_PAGES && ARM64_VA_BITS_48) select HAVE_ARCH_KGDB |