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| author | Jack Tan <jack.tan@windriver.com> | 2008-09-23 16:52:34 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2008-09-24 00:26:55 +0200 |
| commit | 5291925a9a65ea334f6e887d0f01dd119b8e2b2e (patch) | |
| tree | 7cacbbf17ae6b22d9be55c4b862fa064082bf531 /Documentation | |
| parent | [MIPS] au1000: Fix gpio direction (diff) | |
| download | linux-5291925a9a65ea334f6e887d0f01dd119b8e2b2e.tar.xz linux-5291925a9a65ea334f6e887d0f01dd119b8e2b2e.zip | |
[MIPS] Fixe the definition of PTRS_PER_PGD
When we use > 4KB's page size the original definition is not consistent
with PGDIR_SIZE. For exeample, if we use 16KB page size the PGDIR_SHIFT is
(14-2) + 14 = 26, PGDIR_SIZE is 2^26，so the PTRS_PER_PGD should be:
2^32/2^26 = 2^6
but the original definition of PTRS_PER_PGD is 4096 (PGDIR_ORDER = 0).
So, this definition needs to be consistent with the PGDIR_SIZE.
And the new definition is consistent with the PGD init in pagetable_init().
Signed-off-by: Dajie Tan <jiankemeng@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions