Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754102AbcDAKAc (ORCPT ); Fri, 1 Apr 2016 06:00:32 -0400 Received: from e23smtp06.au.ibm.com ([202.81.31.148]:33644 "EHLO e23smtp06.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750963AbcDAKAb (ORCPT ); Fri, 1 Apr 2016 06:00:31 -0400 X-IBM-Helo: d23dlp03.au.ibm.com X-IBM-MailFrom: naveen.n.rao@linux.vnet.ibm.com X-IBM-RcptTo: linux-kernel@vger.kernel.org From: "Naveen N. Rao" To: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Cc: oss@buserror.net, "Matt Evans" , "Michael Ellerman" , "Paul Mackerras" , "Alexei Starovoitov" , "David S. Miller" , "Ananth N Mavinakayanahalli" Subject: [RFC PATCH 0/6] eBPF JIT for PPC64 Date: Fri, 1 Apr 2016 15:28:25 +0530 Message-Id: X-Mailer: git-send-email 2.7.4 X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16040110-0021-0000-0000-000003599754 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1894 Lines: 46 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