The UEFI spec mandates that unaligned memory access should be enabled if
supported by the CPU architecture.
This patch adds an empty weak function unaligned_access() that can be
overridden by an architecture specific routine.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
This is based on the asm-arm/unaligned.h, but made generic so all arches
that cannot do unaligned accesses can utilize it.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The asm-arm/unaligned.h includes linux/unaligned/access_ok.h
This file is unsafe to be used on ARM, since it does an unaligned memory
accesses which fails on ARM.
Lookin at Linux the basic difference seems to be the header
"include/asm-arm/unaligned.h". The Linux version of "unaligned.h"
does *not* include "access_ok.h" at all. It includes "le_byteshift.h"
and "be_byteshift.h" instead.
Signed-off-by: Remy Bohmer <linux@bohmer.net>
Signed-off-by: Stefan Roese <sr@denx.de>
--
include/asm-arm/unaligned.h | 3 -
include/linux/unaligned/be_byteshift.h | 70 +++++++++++++++++++++++++++++++++
include/linux/unaligned/le_byteshift.h | 70 +++++++++++++++++++++++++++++++++
3 files changed, 142 insertions(+), 1 deletion(-)
create mode 100644 include/linux/unaligned/be_byteshift.h
create mode 100644 include/linux/unaligned/le_byteshift.h
This patch adds unaligned.h for ARM (needed to build with LZO
compression). The file is taken from the linux kernel, but includes
u-boot headers instead.
Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
Acked-by: Stefan Roese <sr@denx.de>
This patch adds unaligned.h for ARM (needed to build with LZO
compression). The file is taken from the linux kernel, but includes
u-boot headers instead.
Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
Acked-by: Stefan Roese <sr@denx.de>
Heinrich Schuchardt
Mike Frysinger
Remy Bohmer
Simon Kagstrom