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| author | R Sharada <sharada@in.ibm.com> | 2005-06-25 14:58:08 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-25 16:24:51 -0700 |
| commit | f4c82d5132b0592f5d6befc5b652cbd4b08f12ff (patch) | |
| tree | 3889ea8eeb4dfa6c995b6dc93574d24c238a6deb /include | |
| parent | 70765aa4bdb8862a49fcf5b28f3deaf561cf5ae7 (diff) | |
| download | talos-obmc-linux-f4c82d5132b0592f5d6befc5b652cbd4b08f12ff.tar.gz talos-obmc-linux-f4c82d5132b0592f5d6befc5b652cbd4b08f12ff.zip | |
[PATCH] ppc64 kexec: native hash clear
Add code to clear the hash table and invalidate the tlb for native (SMP,
non-LPAR) mode. Supports 16M and 4k pages.
Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: R Sharada <sharada@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-ppc64/mmu.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/asm-ppc64/mmu.h b/include/asm-ppc64/mmu.h index 9d03a98a4fa3..f373de5e3dd9 100644 --- a/include/asm-ppc64/mmu.h +++ b/include/asm-ppc64/mmu.h @@ -181,6 +181,28 @@ static inline void tlbiel(unsigned long va) asm volatile("ptesync": : :"memory"); } +static inline unsigned long slot2va(unsigned long avpn, unsigned long large, + unsigned long secondary, unsigned long slot) +{ + unsigned long va; + + va = avpn << 23; + + if (!large) { + unsigned long vpi, pteg; + + pteg = slot / HPTES_PER_GROUP; + if (secondary) + pteg = ~pteg; + + vpi = ((va >> 28) ^ pteg) & htab_hash_mask; + + va |= vpi << PAGE_SHIFT; + } + + return va; +} + /* * Handle a fault by adding an HPTE. If the address can't be determined * to be valid via Linux page tables, return 1. If handled return 0 |
