ARM: l2c: provide generic hook to intercept writes to secure registers
When Linux is running in the non-secure world, any write to a secure
L2C register will generate an abort. Platforms normally have to call
firmware to work around this. Provide a hook for them to intercept
any L2C secure register write.
l2c_write_sec() avoids writes to secure registers which are already set
to the appropriate value, thus avoiding the overhead of needlessly
calling into the secure monitor.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2 files changed