On Mon, Jul 15, 2019 at 4:49 PM Michael Ellerman <m...@ellerman.id.au> wrote: > > Christophe Leroy <christophe.le...@c-s.fr> writes: > > PPC32 also have flush_dcache_range() so it can also support > > ARCH_HAS_PMEM_API and ARCH_HAS_UACCESS_FLUSHCACHE without changes. > > > > Signed-off-by: Christophe Leroy <christophe.le...@c-s.fr> > > --- > > arch/powerpc/Kconfig | 4 ++-- > > 1 file changed, 2 insertions(+), 2 deletions(-) > > > > diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig > > index d7996cfaceca..cf6e30f637be 100644 > > --- a/arch/powerpc/Kconfig > > +++ b/arch/powerpc/Kconfig > > @@ -127,13 +127,13 @@ config PPC > > select ARCH_HAS_KCOV > > select ARCH_HAS_MMIOWB if PPC64 > > select ARCH_HAS_PHYS_TO_DMA > > - select ARCH_HAS_PMEM_API if PPC64 > > + select ARCH_HAS_PMEM_API > > select ARCH_HAS_PTE_SPECIAL > > select ARCH_HAS_MEMBARRIER_CALLBACKS > > select ARCH_HAS_SCALED_CPUTIME if VIRT_CPU_ACCOUNTING_NATIVE > > && PPC64 > > select ARCH_HAS_STRICT_KERNEL_RWX if ((PPC_BOOK3S_64 || PPC32) > > && !RELOCATABLE && !HIBERNATION) > > select ARCH_HAS_TICK_BROADCAST if > > GENERIC_CLOCKEVENTS_BROADCAST > > - select ARCH_HAS_UACCESS_FLUSHCACHE if PPC64 > > + select ARCH_HAS_UACCESS_FLUSHCACHE > > select ARCH_HAS_UBSAN_SANITIZE_ALL > > select ARCH_HAS_ZONE_DEVICE if PPC_BOOK3S_64 > > select ARCH_HAVE_NMI_SAFE_CMPXCHG > > This didn't build for me, probably due to something that's changed in > the long period between you posting it and me applying it? > > corenet32_smp_defconfig: > > powerpc64-unknown-linux-gnu-ld: lib/iov_iter.o: in function > `_copy_from_iter_flushcache': > powerpc64-unknown-linux-gnu-ld: > /scratch/michael/build/maint/build~/../lib/iov_iter.c:825: undefined > reference to `memcpy_page_flushcache' > powerpc64-unknown-linux-gnu-ld: > /scratch/michael/build/maint/build~/../lib/iov_iter.c:825: undefined > reference to `memcpy_flushcache' > powerpc64-unknown-linux-gnu-ld: > /scratch/michael/build/maint/build~/../lib/iov_iter.c:825: undefined > reference to `__copy_from_user_flushcache' > powerpc64-unknown-linux-gnu-ld: > /scratch/michael/build/maint/build~/../lib/iov_iter.c:825: undefined > reference to `memcpy_flushcache'
I think lib/pmem.c just needs to be moved out of obj64-y. > > cheers
