diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2021-12-02 00:41:52 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-12-09 22:41:13 +1100 |
| commit | 387e220a2e5e630794e1f5219ed6f11e56271c21 (patch) | |
| tree | 85b04fbab55f104ba90c3c2e688b83fa5ab613e7 /arch/powerpc/include/asm/book3s/64/tlbflush-hash.h | |
| parent | c28573744b74eb6de19add503d6a986795c4c137 (diff) | |
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/book3s/64/tlbflush-hash.h')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/tlbflush-hash.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h b/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h index 3b95769739c7..8b762f282190 100644 --- a/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h +++ b/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h @@ -112,8 +112,14 @@ static inline void hash__flush_tlb_kernel_range(unsigned long start, struct mmu_gather; extern void hash__tlb_flush(struct mmu_gather *tlb); +void flush_tlb_pmd_range(struct mm_struct *mm, pmd_t *pmd, unsigned long addr); + +#ifdef CONFIG_PPC_64S_HASH_MMU /* Private function for use by PCI IO mapping code */ extern void __flush_hash_table_range(unsigned long start, unsigned long end); extern void flush_tlb_pmd_range(struct mm_struct *mm, pmd_t *pmd, unsigned long addr); +#else +static inline void __flush_hash_table_range(unsigned long start, unsigned long end) { } +#endif #endif /* _ASM_POWERPC_BOOK3S_64_TLBFLUSH_HASH_H */ |