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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-06-02 21:17:45 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-06-09 16:47:38 +1000 |
| commit | 944916858a430a0627e483657d4cfa2cd2dfb4f7 (patch) | |
| tree | 37fa713f9c336daab10b132bd3e00c57f6111b71 /arch/powerpc/include | |
| parent | 91c60b5b8209627590b31c07262e40c27d27d272 (diff) | |
| download | talos-obmc-linux-944916858a430a0627e483657d4cfa2cd2dfb4f7.tar.gz talos-obmc-linux-944916858a430a0627e483657d4cfa2cd2dfb4f7.zip | |
powerpc: Shield code specific to 64-bit server processors
This is a random collection of added ifdef's around portions of
code that only mak sense on server processors. Using either
CONFIG_PPC_STD_MMU_64 or CONFIG_PPC_BOOK3S as seems appropriate.
This is meant to make the future merging of Book3E 64-bit support
easier.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/lppaca.h | 6 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/mmu.h | 4 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/pgtable-ppc64.h | 5 |
3 files changed, 13 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/lppaca.h b/arch/powerpc/include/asm/lppaca.h index d2a65e8ca6ae..f78f65c38f05 100644 --- a/arch/powerpc/include/asm/lppaca.h +++ b/arch/powerpc/include/asm/lppaca.h @@ -20,6 +20,11 @@ #define _ASM_POWERPC_LPPACA_H #ifdef __KERNEL__ +/* These definitions relate to hypervisors that only exist when using + * a server type processor + */ +#ifdef CONFIG_PPC_BOOK3S + //============================================================================= // // This control block contains the data that is shared between the @@ -158,5 +163,6 @@ struct slb_shadow { extern struct slb_shadow slb_shadow[]; +#endif /* CONFIG_PPC_BOOK3S */ #endif /* __KERNEL__ */ #endif /* _ASM_POWERPC_LPPACA_H */ diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h index 325b7208a146..fb57ded592f9 100644 --- a/arch/powerpc/include/asm/mmu.h +++ b/arch/powerpc/include/asm/mmu.h @@ -74,10 +74,10 @@ extern void early_init_mmu_secondary(void); #endif /* !__ASSEMBLY__ */ -#ifdef CONFIG_PPC64 +#if defined(CONFIG_PPC_STD_MMU_64) /* 64-bit classic hash table MMU */ # include <asm/mmu-hash64.h> -#elif defined(CONFIG_PPC_STD_MMU) +#elif defined(CONFIG_PPC_STD_MMU_32) /* 32-bit classic hash table MMU */ # include <asm/mmu-hash32.h> #elif defined(CONFIG_40x) diff --git a/arch/powerpc/include/asm/pgtable-ppc64.h b/arch/powerpc/include/asm/pgtable-ppc64.h index c40db05f21e0..8cd083c61503 100644 --- a/arch/powerpc/include/asm/pgtable-ppc64.h +++ b/arch/powerpc/include/asm/pgtable-ppc64.h @@ -31,9 +31,11 @@ #error TASK_SIZE_USER64 exceeds pagetable range #endif +#ifdef CONFIG_PPC_STD_MMU_64 #if TASK_SIZE_USER64 > (1UL << (USER_ESID_BITS + SID_SHIFT)) #error TASK_SIZE_USER64 exceeds user VSID range #endif +#endif /* * Define the address range of the vmalloc VM area. @@ -199,8 +201,11 @@ static inline unsigned long pte_update(struct mm_struct *mm, if (!huge) assert_pte_locked(mm, addr); +#ifdef CONFIG_PPC_STD_MMU_64 if (old & _PAGE_HASHPTE) hpte_need_flush(mm, addr, ptep, old, huge); +#endif + return old; } |
