| commit | 01858d1b0b406307626bbc01238391b06aae2c20 | [log] [tgz] |
|---|---|---|
| author | Chris Zankel <chris@zankel.net> | Mon Aug 06 23:57:57 2007 -0700 |
| committer | Chris Zankel <chris@zankel.net> | Mon Aug 27 13:54:01 2007 -0700 |
| tree | d01d20f3f513e6a21880a60cdf195023e6aafc66 | |
| parent | 26465f2f4f5a253f22596fc9245a6bb5c0856ee1 [diff] |
[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>