diff options
| author | Liu Shixin <liushixin2@huawei.com> | 2022-10-12 20:00:37 +0800 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2022-10-28 17:10:01 -0700 |
| commit | 310f541a027b1d5dc68f44f176cde618e6ee9691 (patch) | |
| tree | f6c172cc923df0bbea5acaf6de24829448ce1bb2 /arch/riscv/Kconfig | |
| parent | 3558927fc2b2fd0af309648f4071035e08719866 (diff) | |
| download | lwn-310f541a027b1d5dc68f44f176cde618e6ee9691.tar.gz lwn-310f541a027b1d5dc68f44f176cde618e6ee9691.zip | |
riscv: Enable HAVE_ARCH_HUGE_VMAP for 64BIT
This sets the HAVE_ARCH_HUGE_VMAP option, and defines the required page
table functions. With this feature, ioremap area will be mapped with
huge page granularity according to its actual size. This feature can be
disabled by kernel parameter "nohugeiomap".
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/20221012120038.1034354-2-liushixin2@huawei.com
[Palmer: minor formatting]
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/Kconfig')
| -rw-r--r-- | arch/riscv/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 6b48a3ae9843..db2082dd456d 100644 --- 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_VMAP if MMU && 64BIT && !XIP_KERNEL select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL select HAVE_ARCH_JUMP_LABEL_RELATIVE if !XIP_KERNEL select HAVE_ARCH_KASAN if MMU && 64BIT |