On Thu, Jun 28, 2018 at 10:30 PM Jia He <hejianet@xxxxxxxxx> wrote: > > Make CONFIG_HAVE_MEMBLOCK_PFN_VALID a new config option so it can move > memblock_next_valid_pfn to generic code file. All the latter optimizations > are based on this config. > > The memblock initialization time on arm/arm64 can benefit from this. > > Signed-off-by: Jia He <jia.he@xxxxxxxxxxxxxxxx> Reviewed-by: Pavel Tatashin <pasha.tatashin@xxxxxxxxxx> On Thu, Jun 28, 2018 at 10:30 PM Jia He <hejianet@xxxxxxxxx> wrote: > > Make CONFIG_HAVE_MEMBLOCK_PFN_VALID a new config option so it can move > memblock_next_valid_pfn to generic code file. All the latter optimizations > are based on this config. > > The memblock initialization time on arm/arm64 can benefit from this. > > Signed-off-by: Jia He <jia.he@xxxxxxxxxxxxxxxx> > --- > arch/arm/Kconfig | 4 ++++ > arch/arm64/Kconfig | 4 ++++ > mm/Kconfig | 3 +++ > 3 files changed, 11 insertions(+) > > diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig > index 843edfd..7ea2636 100644 > --- a/arch/arm/Kconfig > +++ b/arch/arm/Kconfig > @@ -1642,6 +1642,10 @@ config ARCH_SELECT_MEMORY_MODEL > config HAVE_ARCH_PFN_VALID > def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM > > +config HAVE_MEMBLOCK_PFN_VALID > + def_bool y > + depends on HAVE_ARCH_PFN_VALID > + > config HAVE_GENERIC_GUP > def_bool y > depends on ARM_LPAE > diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig > index 42c090c..26d75f4 100644 > --- a/arch/arm64/Kconfig > +++ b/arch/arm64/Kconfig > @@ -778,6 +778,10 @@ config ARCH_SELECT_MEMORY_MODEL > config HAVE_ARCH_PFN_VALID > def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM > > +config HAVE_MEMBLOCK_PFN_VALID > + def_bool y > + depends on HAVE_ARCH_PFN_VALID > + > config HW_PERF_EVENTS > def_bool y > depends on ARM_PMU > diff --git a/mm/Kconfig b/mm/Kconfig > index ce95491..2c38080a5 100644 > --- a/mm/Kconfig > +++ b/mm/Kconfig > @@ -137,6 +137,9 @@ config HAVE_MEMBLOCK_NODE_MAP > config HAVE_MEMBLOCK_PHYS_MAP > bool > > +config HAVE_MEMBLOCK_PFN_VALID > + bool > + > config HAVE_GENERIC_GUP > bool > > -- > 1.8.3.1 >
