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| author | T.J. Purtell <tj@mobisocial.us> | 2013-11-06 18:38:05 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-11-07 01:19:06 +0100 |
| commit | 6ecf830e5029598732e04067e325d946097519cb (patch) | |
| tree | b174b452cca9b7c9aa44a79cfa963b7c03539628 /arch/arm/mach-mmp/clock.h | |
| parent | ARM: 7876/1: clear Thumb-2 IT state on exception handling (diff) | |
| download | linux-6ecf830e5029598732e04067e325d946097519cb.tar.xz linux-6ecf830e5029598732e04067e325d946097519cb.zip | |
ARM: 7880/1: Clear the IT state independent of the Thumb-2 mode
The ARM architecture reference specifies that the IT state bits in the
PSR must be all zeros in ARM mode or behavior is unspecified. On the
Qualcomm Snapdragon S4/Krait architecture CPUs the processor continues
to consider the IT state bits while in ARM mode. This makes it so
that some instructions are skipped by the CPU.
Signed-off-by: T.J. Purtell <tj@mobisocial.us>
[rmk+kernel@arm.linux.org.uk: fixed whitespace formatting in patch]
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-mmp/clock.h')
0 files changed, 0 insertions, 0 deletions