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| author |   Vineet Gupta <vgupta@synopsys.com> | 2013-05-19 14:06:44 +0530 |
|---|---|---|
| committer | Vineet Gupta <vgupta@synopsys.com> | 2013-05-23 14:25:09 +0530 |
| commit | 006dfb3c9c44192f06093d65b3a876fa5ad1319a (patch) | |
| tree | d3ea1716d564a7390141f12b98c628cfe4b932eb /arch/arc/mm/cache_arc700.c | |
| parent | ARC: Brown paper bag bug in macro for checking cache color (diff) | |
| download | linux-dev-006dfb3c9c44192f06093d65b3a876fa5ad1319a.tar.xz linux-dev-006dfb3c9c44192f06093d65b3a876fa5ad1319a.zip | |
ARC: Use enough bits for determining page's cache color
The current code uses 2 bits for determining page's dcache color, thus
sorting pages into 4 bins, whereas the aliasing dcache really has 2 bins
(8k page, 64k dcache - 4 way-set-assoc).
This can cause extraneous flushes - e.g. color 0 and 2.
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
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