WSL2-Linux-Kernel/Documentation/arm64
Punit Agrawal bd35a4adc4 arm64: Port SWP/SWPB emulation support from arm
The SWP instruction was deprecated in the ARMv6 architecture. The
ARMv7 multiprocessing extensions mandate that SWP/SWPB instructions
are treated as undefined from reset, with the ability to enable them
through the System Control Register SW bit. With ARMv8, the option to
enable these instructions through System Control Register was dropped
as well.

To support legacy applications using these instructions, port the
emulation of the SWP and SWPB instructions from the arm port to arm64.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2014-11-20 16:34:31 +00:00
..
booting.txt KVM/ARM New features for 3.17 include: 2014-08-05 09:47:45 +02:00
legacy_instructions.txt arm64: Port SWP/SWPB emulation support from arm 2014-11-20 16:34:31 +00:00
memory.txt Documentation/arm64/memory.txt: fix typo 2014-10-20 17:55:38 +01:00
tagged-pointers.txt arm64: documentation: tighten up tagged pointer documentation 2013-09-20 09:56:06 +01:00