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SubjectRe: [PATCH v2 0/2] riscv: Support HAVE_ARCH_HUGE_VMAP and HAVE_ARCH_HUGE_VMALLOC
Date
Liu Shixin <liushixin2@huawei.com> writes:

> Since riscv64 has already support SATP_MODE_57 by default, it is time to
> support more hugepage-related features. These two patches will enable
> HAVE_ARCH_HUGE_VMAP and HAVE_ARCH_HUGE_VMALLOC.
>

Just a note; The HP support does not require sv57. Pmd/Mega- and
pud/gigapages work for sv39 and sv48 as well.

> v1->v2: Fix the build error reported by kernel-test.
>
> Liu Shixin (2):
> riscv: Enable HAVE_ARCH_HUGE_VMAP for 64BIT
> riscv: Enable HAVE_ARCH_HUGE_VMALLOC for 64BIT
>
> .../features/vm/huge-vmap/arch-support.txt | 2 +-
> arch/riscv/Kconfig | 2 +
> arch/riscv/include/asm/vmalloc.h | 18 ++++
> arch/riscv/mm/Makefile | 1 +
> arch/riscv/mm/pgtable.c | 83 +++++++++++++++++++
> 5 files changed, 105 insertions(+), 1 deletion(-)
> create mode 100644 arch/riscv/mm/pgtable.c
>

I've taken this series for a spin, and tested huge pud pages via
ioremap(), and huge pmd pages via vmalloc_huge() on qemu for sv39, sv48,
and sv57.

Patch 2 have a spelling error in the commit message: "enbale" vs
"enable".

Fix up the spelling error in patch 2, and after that feel free to add
for the whole series:

Reviewed-by: Björn Töpel <bjorn@kernel.org>
Tested-by: Björn Töpel <bjorn@kernel.org>


Nice work!
Björn

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