ARM: 8297/1: cache-l2x0: optimize aurora range operations
The aurora_inv_range(), aurora_clean_range() and aurora_flush_range()
functions are highly redundant, both in source and in object code, and
they are harder to understand than necessary.
By moving the range loop into the aurora_pa_range() function, they
become trivial wrappers, and the object code start looking like what
one would expect for an optimal implementation.
Further optimization may be possible by using the per-CPU "virtual"
registers to avoid the spinlocks in most cases.
(on Armada 370 RD and Armada XP GP, boot tested, plus a little bit of
DMA traffic by reading data from a SD card)
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>