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(parent: d3ab332) | patch
riscv: add ARCH_HAS_SET_DIRECT_MAP support
authorZong Li <zong.li@sifive.com>
Mon, 9 Mar 2020 16:55:37 +0000 (00:55 +0800)
committerPalmer Dabbelt <palmerdabbelt@google.com>
Thu, 26 Mar 2020 16:24:33 +0000 (09:24 -0700)
commit395a21ff859c9c2471ea62d7d56af8a85ec333f7
tree9e3d35bc7de9b774b388dbfb154332fbf2751ebetree | snapshot
parentd3ab332a5021235a74fd832a49c6a99404920d88commit | diff
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>
arch/riscv/Kconfig diff | blob | history
arch/riscv/include/asm/set_memory.h diff | blob | history
arch/riscv/mm/pageattr.c diff | blob | history
https://github.com/torvalds/linux.git