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ARMv7: Enable the SWP instruction
authorCatalin Marinas <catalin.marinas@arm.com>
Sat, 30 May 2009 13:00:16 +0000 (14:00 +0100)
committerCatalin Marinas <catalin.marinas@arm.com>
Sat, 30 May 2009 13:00:16 +0000 (14:00 +0100)
commit213fb2a8ee81ec106b9b370a07ccad575e9d3748
treeae439bbb35cfa5c96b8d658ea97359c761117e09tree | snapshot
parentd71e1352e240dea32d481ad8d662e8de4406ac7ecommit | diff
ARMv7: Enable the SWP instruction

The SWP instruction has been deprecated starting with the ARMv6
architecture. On ARMv7 processors with the multiprocessor extensions
(like Cortex-A9), this instruction is disabled by default but it can be
enabled by setting bit 10 in the System Control register. Note that
setting this bit is safe even if the ARMv7 processor has the SWP
instruction enabled by default.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arch/arm/mm/proc-v7.S diff | blob | history
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