diff options
Diffstat (limited to 'include/asm-ppc64/mmu.h')
| -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 9d03a98a4fa..f373de5e3dd 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 |