[PATCH v3 0/2] riscv: Support HAVE_ARCH_HUGE_VMAP and HAVE_ARCH_HUGE_VMALLOC

[Liu Shixin]

riscv64 can support sv48 now, so we can add more hugepage-related features
which rely on 3th or 4th level of page table. These two patches will
enable HAVE_ARCH_HUGE_VMAP and HAVE_ARCH_HUGE_VMALLOC.

v2->v3: Fix the commit log.
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

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2.25.1