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author | Chris Metcalf <cmetcalf@tilera.com> | 2012-03-28 17:59:18 (GMT) |
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committer | Chris Metcalf <cmetcalf@tilera.com> | 2012-05-25 16:48:21 (GMT) |
commit | 73636b1aacb1a07e6fbe0d25e560e69b024a8e25 (patch) | |
tree | 9531c202c6b3f67fba1cd7ac2b83fa32c31fe197 /arch/tile/lib/strchr_64.c | |
parent | 51007004f44c9588d70ffb77e1f52479bd5b0e37 (diff) | |
download | linux-73636b1aacb1a07e6fbe0d25e560e69b024a8e25.tar.xz |
arch/tile: allow building Linux with transparent huge pages enabled
The change adds some infrastructure for managing tile pmd's more generally,
using pte_pmd() and pmd_pte() methods to translate pmd values to and
from ptes, since on TILEPro a pmd is really just a nested structure
holding a pgd (aka pte). Several existing pmd methods are moved into
this framework, and a whole raft of additional pmd accessors are defined
that are used by the transparent hugepage framework.
The tile PTE now has a "client2" bit. The bit is used to indicate a
transparent huge page is in the process of being split into subpages.
This change also fixes a generic bug where the return value of the
generic pmdp_splitting_flush() was incorrect.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/lib/strchr_64.c')
0 files changed, 0 insertions, 0 deletions