leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

powerpc/mm: Compile out radix related functions if RADIX_MMU is disabled

Browse Source 
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>
This commit is contained in:
Aneesh Kumar K.V 2016-07-13 15:05:23 +05:30 committed by Michael Ellerman
parent 66c570f545
commit e21fc93b70
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
arch/powerpc/include/asm/book3s/64/mmu.h
View File

@ -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__ */