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| author | David S. Miller <davem@sunset.davemloft.net> | 2007-05-29 01:58:31 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-05-29 02:51:38 -0700 |
| commit | 2d9e2763c22a4ce41c3cc5f35366a51f1eba38dc (patch) | |
| tree | 5a8ee71858b3ec58ff07a2cd9cf875cfb458cf63 /arch/sparc64/mm/init.c | |
| parent | 5f81941c9d47f783e834028dcfb8548809da5a53 (diff) | |
| download | lwn-2d9e2763c22a4ce41c3cc5f35366a51f1eba38dc.tar.gz lwn-2d9e2763c22a4ce41c3cc5f35366a51f1eba38dc.zip | |
[SPARC64]: Fix two bugs wrt. kernel 4MB TSB.
1) The TSB lookup was not using the correct hash mask.
2) It was not aligned on a boundary equal to it's size,
which is required by the sun4v Hypervisor.
wasn't having it's return value checked, and that bug will be fixed up
as well in a subsequent changeset.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/mm/init.c')
| -rw-r--r-- | arch/sparc64/mm/init.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index 087cbf09d0b7..97af4311f787 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -61,8 +61,11 @@ unsigned long kern_linear_pte_xor[2] __read_mostly; unsigned long kpte_linear_bitmap[KPTE_BITMAP_BYTES / sizeof(unsigned long)]; #ifndef CONFIG_DEBUG_PAGEALLOC -/* A special kernel TSB for 4MB and 256MB linear mappings. */ -struct tsb swapper_4m_tsb[KERNEL_TSB4M_NENTRIES]; +/* A special kernel TSB for 4MB and 256MB linear mappings. + * Space is allocated for this right after the trap table + * in arch/sparc64/kernel/head.S + */ +extern struct tsb swapper_4m_tsb[KERNEL_TSB4M_NENTRIES]; #endif #define MAX_BANKS 32 |