[PATCH powerpc/next 00/17] powerpc/bpf: Some updates and cleanups

Naveen N. Rao naveen.n.rao at linux.vnet.ibm.com
Mon Feb 14 21:41:34 AEDT 2022


This is a follow-up series with the pending patches from:
https://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=279602&state=*

Patches 1-5 and 8 are unchanged. Patch 6 is new and patch 7 has changes 
based on discussion from the last series. Patch 9 has a small change to 
not skip the toc load for elf v2.

Patches 10-17 are new to this series and are largely some cleanups to 
the bpf code on powerpc.

- Naveen


Jordan Niethe (1):
  powerpc64/bpf: Store temp registers' bpf to ppc mapping

Naveen N. Rao (16):
  powerpc/bpf: Skip branch range validation during first pass
  powerpc/bpf: Emit a single branch instruction for known short branch
    ranges
  powerpc/bpf: Handle large branch ranges with BPF_EXIT
  powerpc64/bpf: Do not save/restore LR on each call to
    bpf_stf_barrier()
  powerpc64/bpf: Use r12 for constant blinding
  powerpc64: Set PPC64_ELF_ABI_v[1|2] macros to 1
  powerpc64/bpf elfv2: Setup kernel TOC in r2 on entry
  powerpc64/bpf elfv1: Do not load TOC before calling functions
  powerpc64/bpf: Optimize instruction sequence used for function calls
  powerpc/bpf: Rename PPC_BL_ABS() to PPC_BL()
  powerpc64/bpf: Convert some of the uses of PPC_BPF_[LL|STL] to
    PPC_BPF_[LD|STD]
  powerpc64/bpf: Get rid of PPC_BPF_[LL|STL|STLU] macros
  powerpc/bpf: Cleanup bpf_jit.h
  powerpc/bpf: Move bpf_jit64.h into bpf_jit_comp64.c
  powerpc/bpf: Use _Rn macros for GPRs
  powerpc/bpf: Simplify bpf_to_ppc() and adopt it for powerpc64

 arch/powerpc/include/asm/types.h  |   4 +-
 arch/powerpc/net/bpf_jit.h        |  35 +--
 arch/powerpc/net/bpf_jit64.h      |  91 ------
 arch/powerpc/net/bpf_jit_comp.c   |  34 ++-
 arch/powerpc/net/bpf_jit_comp32.c | 113 ++++----
 arch/powerpc/net/bpf_jit_comp64.c | 440 ++++++++++++++++--------------
 6 files changed, 340 insertions(+), 377 deletions(-)
 delete mode 100644 arch/powerpc/net/bpf_jit64.h


base-commit: 1b43a74f255c5c00db25a5fedfd75ca0dc029022
-- 
2.35.1



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