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author | 2021-12-02 00:41:52 +1000 | |
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committer | 2021-12-09 22:41:13 +1100 | |
commit | 387e220a2e5e630794e1f5219ed6f11e56271c21 (patch) | |
tree | 85b04fbab55f104ba90c3c2e688b83fa5ab613e7 /arch/powerpc/include/asm/mmu_context.h | |
parent | powerpc/64s: Make hash MMU support configurable (diff) | |
download | linux-387e220a2e5e630794e1f5219ed6f11e56271c21.tar.gz linux-387e220a2e5e630794e1f5219ed6f11e56271c21.tar.bz2 linux-387e220a2e5e630794e1f5219ed6f11e56271c21.zip |
powerpc/64s: Move hash MMU support code under CONFIG_PPC_64S_HASH_MMU
Compiling out hash support code when CONFIG_PPC_64S_HASH_MMU=n saves
128kB kernel image size (90kB text) on powernv_defconfig minus KVM,
350kB on pseries_defconfig minus KVM, 40kB on a tiny config.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Fixup defined(ARCH_HAS_MEMREMAP_COMPAT_ALIGN), which needs CONFIG.
Fix radix_enabled() use in setup_initial_memory_limit(). Add some
stubs to reduce number of ifdefs.]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211201144153.2456614-18-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc/include/asm/mmu_context.h')
-rw-r--r-- | arch/powerpc/include/asm/mmu_context.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/mmu_context.h b/arch/powerpc/include/asm/mmu_context.h index 9ba6b585337f..e46394d27785 100644 --- a/arch/powerpc/include/asm/mmu_context.h +++ b/arch/powerpc/include/asm/mmu_context.h @@ -75,6 +75,7 @@ extern void hash__reserve_context_id(int id); extern void __destroy_context(int context_id); static inline void mmu_context_init(void) { } +#ifdef CONFIG_PPC_64S_HASH_MMU static inline int alloc_extended_context(struct mm_struct *mm, unsigned long ea) { @@ -100,6 +101,7 @@ static inline bool need_extra_context(struct mm_struct *mm, unsigned long ea) return true; return false; } +#endif #else extern void switch_mmu_context(struct mm_struct *prev, struct mm_struct *next, |