On Mon, Feb 22, 2016 at 05:58:23PM -0800, David Daney wrote: > From: Ganapatrao Kulkarni <[email protected]> > > Enable NUMA balancing for arm64 platforms. > Add pte, pmd protnone helpers for use by automatic NUMA balancing. > > Reviewed-by: Robert Richter <[email protected]> > Signed-off-by: Ganapatrao Kulkarni <[email protected]> > Signed-off-by: David Daney <[email protected]> > --- > arch/arm64/Kconfig | 1 + > arch/arm64/include/asm/pgtable.h | 15 +++++++++++++++ > 2 files changed, 16 insertions(+) > > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig > index 9f0972a..6e22503 100644 > --- a/arch/arm64/Kconfig > +++ b/arch/arm64/Kconfig > @@ -11,6 +11,7 @@ config ARM64 > select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST > select ARCH_USE_CMPXCHG_LOCKREF > select ARCH_SUPPORTS_ATOMIC_RMW > + select ARCH_SUPPORTS_NUMA_BALANCING > select ARCH_WANT_OPTIONAL_GPIOLIB > select ARCH_WANT_COMPAT_IPC_PARSE_VERSION > select ARCH_WANT_FRAME_POINTERS > diff --git a/arch/arm64/include/asm/pgtable.h > b/arch/arm64/include/asm/pgtable.h > index bf464de..5af9db2 100644 > --- a/arch/arm64/include/asm/pgtable.h > +++ b/arch/arm64/include/asm/pgtable.h > @@ -346,6 +346,21 @@ static inline pgprot_t mk_sect_prot(pgprot_t prot) > return __pgprot(pgprot_val(prot) & ~PTE_TABLE_BIT); > } > > +#ifdef CONFIG_NUMA_BALANCING > +/* > + * See the comment in include/asm-generic/pgtable.h > + */ > +static inline int pte_protnone(pte_t pte) > +{ > + return (pte_val(pte) & (PTE_VALID | PTE_PROT_NONE)) == PTE_PROT_NONE; > +} > + > +static inline int pmd_protnone(pmd_t pmd) > +{ > + return pte_protnone(pmd_pte(pmd)); > +} > +#endif
Can these not be macros, like our other pte_* and pmd_* predicates in this header file? Will
