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| author | Chris Zankel <chris@zankel.net> | 2007-08-06 23:57:57 -0700 |
|---|---|---|
| committer | Chris Zankel <chris@zankel.net> | 2007-08-27 13:54:01 -0700 |
| commit | 01858d1b0b406307626bbc01238391b06aae2c20 (patch) | |
| tree | d01d20f3f513e6a21880a60cdf195023e6aafc66 /COPYING | |
| parent | 26465f2f4f5a253f22596fc9245a6bb5c0856ee1 (diff) | |
| download | linux-01858d1b0b406307626bbc01238391b06aae2c20.tar.gz linux-01858d1b0b406307626bbc01238391b06aae2c20.tar.bz2 linux-01858d1b0b406307626bbc01238391b06aae2c20.zip | |
[XTENSA] Add support for executable/non-executable feature in the mmu
Newer processor versions starting with Xtensa6/LX2 support an 'executable'
bit for memory pages. This bit replaces the 'valid' bit, so it must be
always set to one for older processor versions. To mark a page invalid, we now
set the cache-attributes to b11, which is backward compatible.
Signed-off-by: Chris Zankel <chris@zankel.net>
Diffstat (limited to 'COPYING')
0 files changed, 0 insertions, 0 deletions