tree 2df02bcc5744e2196d6cbdec986e49cc6fb6bf13
parent a22fcc4b1bcbf483f6c8b8f4019bab94ddc0dc70
author Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> 1521637144 +0300
committer Alexey Brodkin <abrodkin@synopsys.com> 1521641215 +0300

ARC: Cache: Add missing cache cleanup before cache disable

Add missing cache cleanup before cache disable:
 * Flush and invalidate L1 D$ before disabling. Flush and invalidate
   SLC before L1 D$ disabling (as it will be bypassed for data)
   Otherwise we can lose some data when we disable L1 D$ if this data
   isn't flushed to next level cache. Or we can get wrong data if L1 D$
   has some entries after enable which we modified when the L1 D$ was
   disabled.
 * Invalidate L1 I$ before disabling. Otherwise we can execute wrong
   instructions after L1 I$ enable if we modified any code when
   L1 I$ was disabled.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>