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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2016-07-13 15:05:23 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-07-17 16:42:51 +1000 |
| commit | e21fc93b7020905c9f3672969ddd276aa152b9b7 (patch) | |
| tree | 76cd0d0d92083d9fdc9ec76792fe654cbab68baf | |
| parent | 66c570f545e056babdd9510595ce762dcedadd71 (diff) | |
| download | linux-e21fc93b7020905c9f3672969ddd276aa152b9b7.tar.gz linux-e21fc93b7020905c9f3672969ddd276aa152b9b7.tar.bz2 linux-e21fc93b7020905c9f3672969ddd276aa152b9b7.zip | |
powerpc/mm: Compile out radix related functions if RADIX_MMU is disabled
Currently we depend on mmu_has_feature to evalute to zero based on
MMU_FTRS_POSSIBLE mask. In a later patch, we want to update
radix_enabled() to runtime update the conditional operation to a jump
instruction. This implies we cannot depend on MMU_FTRS_POSSIBLE mask.
Instead define radix_enabled to return 0 if RADIX_MMU is not enabled.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/mmu.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/mmu.h b/arch/powerpc/include/asm/book3s/64/mmu.h index 5854263d4d6e..d4eda6420523 100644 --- a/arch/powerpc/include/asm/book3s/64/mmu.h +++ b/arch/powerpc/include/asm/book3s/64/mmu.h @@ -23,7 +23,12 @@ struct mmu_psize_def { }; extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT]; +#ifdef CONFIG_PPC_RADIX_MMU #define radix_enabled() mmu_has_feature(MMU_FTR_RADIX) +#else +#define radix_enabled() (0) +#endif + #endif /* __ASSEMBLY__ */ |