-
由 Serge Vakulenko 提交于
The LFSR algorithm, used for generating random TLB indexes for TLBWR instruction, was inclined to produce a degenerate sequence in some cases. For example, for 16-entry TLB size and Wired=1, it gives: 15, 6, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2, 7, 2... When replaced with LCG algorithm from ISO/IEC 9899 standard, the sequence looks much better, with about the same computational effort needed. Signed-off-by: NSerge Vakulenko <serge.vakulenko@gmail.com> Reviewed-by: NAurelien Jarno <aurelien@aurel32.net> Reviewed-by: NLeon Alrae <leon.alrae@imgtec.com> Signed-off-by: NLeon Alrae <leon.alrae@imgtec.com>
ceb0ee14