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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-06-14 06:16:47 -1000 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-06-14 06:16:47 -1000 |
| commit | 72a20cee5d99d231809ee4d3d2c09a96a25451e2 (patch) | |
| tree | 140c1480236bd8026f2dbcb951ac7f898cccc24f /arch/arm64/include/asm | |
| parent | fd6b99fa41ddee9699cff1d0e04e90afa452b24d (diff) | |
| parent | 41040cf7c5f0f26c368bc5d3016fed3a9ca6dba4 (diff) | |
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Here are some arm64 fixes for -rc5.
The only non-trivial change (in terms of the diffstat) is fixing our
SVE ptrace API for big-endian machines, but the majority of this is
actually the addition of much-needed comments and updates to the
documentation to try to avoid this mess biting us again in future.
There are still a couple of small things on the horizon, but nothing
major at this point.
Summary:
- Fix broken SVE ptrace API when running in a big-endian configuration
- Fix performance regression due to off-by-one in TLBI range checking
- Fix build regression when using Clang"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64/sve: Fix missing SVE/FPSIMD endianness conversions
arm64: tlbflush: Ensure start/end of address range are aligned to stride
arm64: Don't unconditionally add -Wno-psabi to KBUILD_CFLAGS
Diffstat (limited to 'arch/arm64/include/asm')
| -rw-r--r-- | arch/arm64/include/asm/tlbflush.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h index 3a1870228946..dff8f9ea5754 100644 --- a/arch/arm64/include/asm/tlbflush.h +++ b/arch/arm64/include/asm/tlbflush.h @@ -195,6 +195,9 @@ static inline void __flush_tlb_range(struct vm_area_struct *vma, unsigned long asid = ASID(vma->vm_mm); unsigned long addr; + start = round_down(start, stride); + end = round_up(end, stride); + if ((end - start) >= (MAX_TLBI_OPS * stride)) { flush_tlb_mm(vma->vm_mm); return; |