From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 388FBC433F5 for ; Sat, 7 May 2022 06:47:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1445781AbiEGGvL (ORCPT ); Sat, 7 May 2022 02:51:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56224 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1445771AbiEGGu6 (ORCPT ); Sat, 7 May 2022 02:50:58 -0400 Received: from pegase2.c-s.fr (pegase2.c-s.fr [93.17.235.10]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8BCCA5D5E5 for ; Fri, 6 May 2022 23:47:08 -0700 (PDT) Received: from localhost (mailhub3.si.c-s.fr [172.26.127.67]) by localhost (Postfix) with ESMTP id 4KwHzK0ckqz9sVq; Sat, 7 May 2022 08:46:53 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from pegase2.c-s.fr ([172.26.127.65]) by localhost (pegase2.c-s.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id kQCu1Il80dM8; Sat, 7 May 2022 08:46:53 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase2.c-s.fr (Postfix) with ESMTP id 4KwHzD5hp5z9sVV; Sat, 7 May 2022 08:46:48 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id A977B8B770; Sat, 7 May 2022 08:46:48 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id HMc5DPu-VFf8; Sat, 7 May 2022 08:46:48 +0200 (CEST) Received: from PO20335.IDSI0.si.c-s.fr (unknown [192.168.202.101]) by messagerie.si.c-s.fr (Postfix) with ESMTP id E789B8B76E; Sat, 7 May 2022 08:46:47 +0200 (CEST) Received: from PO20335.IDSI0.si.c-s.fr (localhost [127.0.0.1]) by PO20335.IDSI0.si.c-s.fr (8.17.1/8.16.1) with ESMTPS id 2476kc2W1320469 (version=TLSv1.3 cipher=TLS_AES_256_GCM_SHA384 bits=256 verify=NOT); Sat, 7 May 2022 08:46:38 +0200 Received: (from chleroy@localhost) by PO20335.IDSI0.si.c-s.fr (8.17.1/8.17.1/Submit) id 2476kZLE1320456; Sat, 7 May 2022 08:46:35 +0200 X-Authentication-Warning: PO20335.IDSI0.si.c-s.fr: chleroy set sender to christophe.leroy@csgroup.eu using -f From: Christophe Leroy To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , naveen.n.rao@linux.vnet.ibm.com Cc: Christophe Leroy , linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: [PATCH v2 00/25] powerpc: ftrace optimisation and cleanup and more [v2] Date: Sat, 7 May 2022 08:46:02 +0200 Message-Id: X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1651905980; l=3734; s=20211009; h=from:subject:message-id; bh=sB47Li5cspS+Q/H8GVp437MSeqxST6ZTmmFQ7liQjVo=; b=+VMsngPikIwGNNaEsxH4AQJ2KbgCYHnSNkKjWOcg2MTB3VZJmKdqbiSAlgpgxIkiqekEeM3t8G/g LnafOpzMA8g2jyJO1UZvDZx4OgECooe7zv4fVgGMmRqBONaUVHWg X-Developer-Key: i=christophe.leroy@csgroup.eu; a=ed25519; pk=HIzTzUj91asvincQGOFx6+ZF5AoUuP9GdOtQChs7Mm0= Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series provides optimisation and cleanup of ftrace on powerpc. With this series ftrace activation is about 20% faster on an 8xx. At the end of the series come additional cleanups around ppc-opcode, that would likely conflict with this series if posted separately. Main changes since v1 (details in after each individual patch description): - Added 3 patches (8, 9, 10) that convert PPC64_ELF_ABI_v{1/2} macros by CONFIG_PPC64_ELF_ABI_V{1/2} - Taken comments from Naveen Christophe Leroy (25): powerpc/ftrace: Refactor prepare_ftrace_return() powerpc/ftrace: Remove redundant create_branch() calls powerpc/code-patching: Inline is_offset_in_{cond}_branch_range() powerpc/ftrace: Use is_offset_in_branch_range() powerpc/code-patching: Inline create_branch() powerpc/ftrace: Inline ftrace_modify_code() powerpc/ftrace: Use patch_instruction() return directly powerpc: Add CONFIG_PPC64_ELF_ABI_V1 and CONFIG_PPC64_ELF_ABI_V2 powerpc: Replace PPC64_ELF_ABI_v{1/2} by CONFIG_PPC64_ELF_ABI_V{1/2} powerpc: Finalise cleanup around ABI use powerpc/ftrace: Make __ftrace_make_{nop/call}() common to PPC32 and PPC64 powerpc/ftrace: Don't include ftrace.o for CONFIG_FTRACE_SYSCALLS powerpc/ftrace: Use CONFIG_FUNCTION_TRACER instead of CONFIG_DYNAMIC_FTRACE powerpc/ftrace: Remove ftrace_plt_tramps[] powerpc/ftrace: Use BRANCH_SET_LINK instead of value 1 powerpc/ftrace: Use PPC_RAW_xxx() macros instead of opencoding. powerpc/ftrace: Use size macro instead of opencoding powerpc/ftrace: Simplify expected_nop_sequence() powerpc/ftrace: Minimise number of #ifdefs powerpc/inst: Add __copy_inst_from_kernel_nofault() powerpc/ftrace: Don't use copy_from_kernel_nofault() in module_trampoline_target() powerpc/inst: Remove PPC_INST_BRANCH powerpc/modules: Use PPC_LI macros instead of opencoding powerpc/inst: Remove PPC_INST_BL powerpc/opcodes: Remove unused PPC_INST_XXX macros arch/powerpc/Kconfig | 2 +- arch/powerpc/Makefile | 12 +- arch/powerpc/boot/Makefile | 2 + arch/powerpc/include/asm/code-patching.h | 65 +++- arch/powerpc/include/asm/ftrace.h | 4 +- arch/powerpc/include/asm/inst.h | 13 +- arch/powerpc/include/asm/linkage.h | 2 +- arch/powerpc/include/asm/module.h | 2 - arch/powerpc/include/asm/ppc-opcode.h | 22 +- arch/powerpc/include/asm/ppc_asm.h | 4 +- arch/powerpc/include/asm/ptrace.h | 2 +- arch/powerpc/include/asm/sections.h | 24 +- arch/powerpc/include/asm/types.h | 8 - arch/powerpc/kernel/fadump.c | 13 +- arch/powerpc/kernel/head_64.S | 2 +- arch/powerpc/kernel/interrupt_64.S | 2 +- arch/powerpc/kernel/kprobes.c | 6 +- arch/powerpc/kernel/misc_64.S | 2 +- arch/powerpc/kernel/module.c | 4 +- arch/powerpc/kernel/module_32.c | 23 +- arch/powerpc/kernel/module_64.c | 7 +- arch/powerpc/kernel/ptrace/ptrace.c | 6 - arch/powerpc/kernel/trace/Makefile | 5 +- arch/powerpc/kernel/trace/ftrace.c | 375 +++++++---------------- arch/powerpc/kvm/book3s_interrupts.S | 2 +- arch/powerpc/kvm/book3s_rmhandlers.S | 2 +- arch/powerpc/lib/code-patching.c | 49 +-- arch/powerpc/lib/feature-fixups.c | 2 +- arch/powerpc/net/bpf_jit.h | 4 +- arch/powerpc/net/bpf_jit_comp.c | 2 +- arch/powerpc/net/bpf_jit_comp64.c | 4 +- arch/powerpc/platforms/Kconfig.cputype | 6 + 32 files changed, 262 insertions(+), 416 deletions(-) -- 2.35.1