riscv: Enable HAVE_ARCH_HUGE_VMALLOC for 64BIT

After we support HAVE_ARCH_HUGE_VMAP, we can now enable
HAVE_ARCH_HUGE_VMALLOC too. This feature has been used in kvmalloc and
alloc_large_system_hash for now. This feature can be disabled by kernel
parameters "nohugevmalloc".

Signed-off-by: Liu Shixin <liushixin2@huawei.com>
Reviewed-by: Björn Töpel <bjorn@kernel.org>
Tested-by: Björn Töpel <bjorn@kernel.org>
Link: https://lore.kernel.org/r/20221012120038.1034354-3-liushixin2@huawei.com
[Palmer: minor formatting]
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index db2082d..7cd981f 100644 (file)
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -72,6 +72,7 @@ config RISCV
        select GENERIC_VDSO_TIME_NS if HAVE_GENERIC_VDSO
        select HARDIRQS_SW_RESEND
        select HAVE_ARCH_AUDITSYSCALL
+       select HAVE_ARCH_HUGE_VMALLOC if HAVE_ARCH_HUGE_VMAP
        select HAVE_ARCH_HUGE_VMAP if MMU && 64BIT && !XIP_KERNEL
        select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
        select HAVE_ARCH_JUMP_LABEL_RELATIVE if !XIP_KERNEL