arm64: User access library functions
This patch add support for various user access functions. These functions use the standard LDR/STR instructions and not the LDRT/STRT variants in order to allow kernel addresses (after set_fs(KERNEL_DS)). Signed-off-by:Will Deacon <will.deacon@arm.com> Signed-off-by:
Marc Zyngier <marc.zyngier@arm.com> Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com> Acked-by:
Tony Lindgren <tony@atomide.com> Acked-by:
Nicolas Pitre <nico@linaro.org> Acked-by:
Olof Johansson <olof@lixom.net> Acked-by:
Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by:
Arnd Bergmann <arnd@arndb.de>
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arch/arm64/lib/clear_user.S
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