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authorMark Salter <msalter@redhat.com>2014-08-13 18:04:49 +0200
committerKees Cook <keescook@chromium.org>2014-10-16 23:38:52 +0200
commitb615bbbff1c4d6fcd13007e75d75f6510aeb3808 (patch)
tree6b6ed6b813bd710d73aa77b5f68e6628e2a1a7fd /Documentation/arm
parentLinux 3.17 (diff)
downloadlinux-b615bbbff1c4d6fcd13007e75d75f6510aeb3808.tar.xz
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arm: use generic fixmap.h
ARM is different from other architectures in that fixmap pages are indexed with a positive offset from FIXADDR_START. Other architectures index with a negative offset from FIXADDR_TOP. In order to use the generic fixmap.h definitions, this patch redefines FIXADDR_TOP to be inclusive of the useable range. That is, FIXADDR_TOP is the virtual address of the topmost fixed page. The newly defined FIXADDR_END is the first virtual address past the fixed mappings. Signed-off-by: Mark Salter <msalter@redhat.com> Reviewed-by: Doug Anderson <dianders@chromium.org> [kees: update for a05e54c103b0 ("ARM: 8031/2: change fixmap ...")] Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Laura Abbott <lauraa@codeaurora.org> Cc: Rob Herring <robh@kernel.org> Acked-by: Nicolas Pitre <nico@linaro.org>
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