diff options
| author | Oliver O'Halloran <oohall@gmail.com> | 2017-10-19 10:13:55 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-11-13 00:00:31 +0300 |
| commit | 6c44741d75a27985a0496cd58b123a58c7177108 (patch) | |
| tree | cabc19300cc31e282e8663bc071b37ab24187c00 /arch/powerpc/Kconfig | |
| parent | 32ce3862af3c42a3890e99846a8d1ad8871a49f9 (diff) | |
| download | linux-6c44741d75a27985a0496cd58b123a58c7177108.tar.xz | |
powerpc/lib: Implement UACCESS_FLUSHCACHE API
Implement the architecture specific portitions of the UACCESS_FLUSHCACHE
API. This provides functions for the copy_user_flushcache iterator that
ensure that when the copy is finished the destination buffer contains
a copy of the original and that the destination buffer is clean in the
processor caches.
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/Kconfig')
| -rw-r--r-- | arch/powerpc/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index c844dbc04153..bbc9336231db 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -142,6 +142,7 @@ config PPC select ARCH_HAS_SCALED_CPUTIME if VIRT_CPU_ACCOUNTING_NATIVE select ARCH_HAS_SG_CHAIN select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST + select ARCH_HAS_UACCESS_FLUSHCACHE if PPC64 select ARCH_HAS_UBSAN_SANITIZE_ALL select ARCH_HAS_ZONE_DEVICE if PPC_BOOK3S_64 select ARCH_HAVE_NMI_SAFE_CMPXCHG |