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| author | Zong Li <zong.li@sifive.com> | 2020-03-09 17:55:37 +0100 |
|---|---|---|
| committer | Palmer Dabbelt <palmerdabbelt@google.com> | 2020-03-26 17:24:33 +0100 |
| commit | 395a21ff859c9c2471ea62d7d56af8a85ec333f7 (patch) | |
| tree | 9e3d35bc7de9b774b388dbfb154332fbf2751ebe /arch/riscv/Kconfig | |
| parent | riscv: add ARCH_HAS_SET_MEMORY support (diff) | |
| download | linux-395a21ff859c9c2471ea62d7d56af8a85ec333f7.tar.xz linux-395a21ff859c9c2471ea62d7d56af8a85ec333f7.zip | |
riscv: add ARCH_HAS_SET_DIRECT_MAP support
Add set_direct_map_*() functions for setting the direct map alias for
the page to its default permissions and to an invalid state that cannot
be cached in a TLB. (See d253ca0c ("x86/mm/cpa: Add set_direct_map_*()
functions")) Add a similar implementation for RISC-V.
Signed-off-by: Zong Li <zong.li@sifive.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.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 3da5c2004191..34fc7450b9dd 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -59,6 +59,7 @@ config RISCV select HAVE_EBPF_JIT if 64BIT select EDAC_SUPPORT select ARCH_HAS_GIGANTIC_PAGE + select ARCH_HAS_SET_DIRECT_MAP select ARCH_HAS_SET_MEMORY select ARCH_WANT_HUGE_PMD_SHARE if 64BIT select SPARSEMEM_STATIC if 32BIT |