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| author | Jeff Garzik <jgarzik@pretzel.yyz.us> | 2005-06-27 01:11:03 +0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-06-27 01:11:03 +0400 |
| commit | 8b0ee07e108b2eefdab5bb73f33223f18926c3b2 (patch) | |
| tree | f68ca04180c5488301a40ec212ef2eb2467cf56c /include/asm-ppc64/mmu.h | |
| parent | 4638aef40ba9ebb9734caeed1f373c24015259fd (diff) | |
| parent | 8678887e7fb43cd6c9be6c9807b05e77848e0920 (diff) | |
| download | linux-8b0ee07e108b2eefdab5bb73f33223f18926c3b2.tar.xz | |
Merge upstream (approx. 2.6.12-git8) into 'janitor' branch of netdev-2.6.
Diffstat (limited to 'include/asm-ppc64/mmu.h')
| -rw-r--r-- | include/asm-ppc64/mmu.h | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/include/asm-ppc64/mmu.h b/include/asm-ppc64/mmu.h index c78282a67d8e..f373de5e3dd9 100644 --- a/include/asm-ppc64/mmu.h +++ b/include/asm-ppc64/mmu.h @@ -47,9 +47,10 @@ #define SLB_VSID_KS ASM_CONST(0x0000000000000800) #define SLB_VSID_KP ASM_CONST(0x0000000000000400) #define SLB_VSID_N ASM_CONST(0x0000000000000200) /* no-execute */ -#define SLB_VSID_L ASM_CONST(0x0000000000000100) /* largepage 16M */ +#define SLB_VSID_L ASM_CONST(0x0000000000000100) /* largepage */ #define SLB_VSID_C ASM_CONST(0x0000000000000080) /* class */ - +#define SLB_VSID_LS ASM_CONST(0x0000000000000070) /* size of largepage */ + #define SLB_VSID_KERNEL (SLB_VSID_KP|SLB_VSID_C) #define SLB_VSID_USER (SLB_VSID_KP|SLB_VSID_KS) @@ -180,6 +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 |