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caravel-mpw7-20221125
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2 Commits (6c4edf80ae2d7696fcafa0b1e07f15a613f4f59f)

Author SHA1 Message Date
Benjamin Herrenschmidt b56b46b7d1 icache: Set associative icache 
This adds support for set associativity to the icache. It can still
be direct mapped by setting NUM_WAYS to 1.

The replacement policy uses a simple tree-PLRU for each set.

This is only lightly tested, tests pass but I have to double check
that we are using the ways effectively and not creating duplicates.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
 5 years ago
Benjamin Herrenschmidt 004eb074c9 plru: Add a simple PLRU module 
Tested in sim only for now

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
 5 years ago