Implement extended BPF JIT for ppc64. We retain the classic BPF JIT for ppc32 and move ppc64 BE/LE to use the new JIT. Classic BPF filters will be converted to extended BPF (see convert_filter()) and JIT'ed with the new compiler.
Most of the existing macros are retained and fixed/enhanced where appropriate. Patches 1-4 are geared towards this. Patch 5 breaks out the classic BPF JIT specifics into a separate bpf_jit32.h header file, while retaining all the generic instruction macros in bpf_jit.h. Most of these macros can potentially be generalized and moved to more common code (tagged with a TODO in patch 6). Patch 6 implements eBPF JIT for ppc64. This is still *early* *RFC* and there are still a few instruction classes to be JIT'ed. I am posting this in advance so as to get early feedback. Kindly review the same and if possible, try it out and let me know how it goes! - Naveen Naveen N. Rao (6): ppc: bpf/jit: Fix/enhance 32-bit Load Immediate implementation ppc: bpf/jit: Optimize 64-bit Immediate loads ppc: bpf/jit: Introduce rotate immediate instructions ppc: bpf/jit: A few cleanups ppc: bpf/jit: Isolate classic BPF JIT specifics into a separate header ppc: ebpf/jit: Implement JIT compiler for extended BPF arch/powerpc/include/asm/ppc-opcode.h | 21 +- arch/powerpc/net/Makefile | 4 + arch/powerpc/net/bpf_jit.h | 251 +++++------ arch/powerpc/net/bpf_jit32.h | 140 ++++++ arch/powerpc/net/bpf_jit64.h | 58 +++ arch/powerpc/net/bpf_jit_asm.S | 2 +- arch/powerpc/net/bpf_jit_comp.c | 10 +- arch/powerpc/net/bpf_jit_comp64.c | 828 ++++++++++++++++++++++++++++++++++ 8 files changed, 1163 insertions(+), 151 deletions(-) create mode 100644 arch/powerpc/net/bpf_jit32.h create mode 100644 arch/powerpc/net/bpf_jit64.h create mode 100644 arch/powerpc/net/bpf_jit_comp64.c -- 2.7.4 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
