Home
last modified time | relevance | path

Searched hist:aa8c09be7a6f58e1b0dd19413d872fffdb054677 (Results 1 – 1 of 1) sorted by relevance

/openbmc/linux/arch/arm64/mm/
H A Dmmu.cdiff aa8c09be7a6f58e1b0dd19413d872fffdb054677 Thu Mar 09 14:52:00 CST 2017 Ard Biesheuvel <ard.biesheuvel@linaro.org> arm64: mmu: move TLB maintenance from callers to create_mapping_late()

In preparation of refactoring the kernel mapping logic so that text regions
are never mapped writable, which would require adding explicit TLB
maintenance to new call sites of create_mapping_late() (which is currently
invoked twice from the same function), move the TLB maintenance from the
call site into create_mapping_late() itself, and change it from a full
TLB flush into a flush by VA, which is more appropriate here.

Also, given that create_mapping_late() has evolved into a routine that only
updates protection bits on existing mappings, rename it to
update_mapping_prot()

Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>