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authorPaul Mundt <lethal@linux-sh.org>2006-11-20 14:30:26 +0900
committerPaul Mundt <lethal@linux-sh.org>2006-12-06 10:45:37 +0900
commit21440cf04a64cd1b1209c12a6e1a3afba2a28709 (patch)
tree9af7a89c4c711b8433b3b1e23e2ba0c95f82fbf7 /net/sctp/endpointola.c
parentb552c7e8bceae8a04ae79ecee6fa369c1ba4f8e4 (diff)
sh: Preliminary support for SH-X2 MMU.
This adds some preliminary support for the SH-X2 MMU, used by newer SH-4A parts (particularly SH7785). This MMU implements a 'compat' mode with SH-X MMUs and an 'extended' mode for SH-X2 extended features. Extended features include additional page sizes (8kB, 4MB, 64MB), as well as the addition of page execute permissions. The extended mode attributes are placed in a second data array, which requires us to switch to 64-bit PTEs when in X2 mode. With the addition of the exec perms, we also overhaul the mmap prots somewhat, now that it's possible to handle them more intelligently. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'net/sctp/endpointola.c')
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