From: Christophe Leroy <christophe.leroy@csgroup.eu> To: "Naveen N . Rao" <naveen.n.rao@linux.vnet.ibm.com>, Steven Rostedt <rostedt@goodmis.org>, Ingo Molnar <mingo@redhat.com>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au> Cc: Christophe Leroy <christophe.leroy@csgroup.eu>, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: [PATCH v1 00/22] powerpc: ftrace optimisation and cleanup and more [v1] Date: Thu, 24 Mar 2022 15:29:50 +0100 [thread overview] Message-ID: <cover.1648131740.git.christophe.leroy@csgroup.eu> (raw) 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. Christophe Leroy (22): 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/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_INST_BRANCH_MASK instead of opencoding powerpc/inst: Remove PPC_INST_BL powerpc/opcodes: Remove unused PPC_INST_XXX macros arch/powerpc/include/asm/book3s/32/pgtable.h | 2 +- arch/powerpc/include/asm/book3s/64/pgtable.h | 2 +- arch/powerpc/include/asm/code-patching.h | 53 ++- arch/powerpc/include/asm/inst.h | 13 +- arch/powerpc/include/asm/module.h | 6 +- arch/powerpc/include/asm/nohash/pgtable.h | 2 +- arch/powerpc/include/asm/ppc-opcode.h | 20 +- arch/powerpc/include/asm/sections.h | 24 +- arch/powerpc/kernel/module_32.c | 29 +- arch/powerpc/kernel/module_64.c | 10 +- arch/powerpc/kernel/trace/Makefile | 5 +- arch/powerpc/kernel/trace/ftrace.c | 390 ++++++------------- arch/powerpc/lib/code-patching.c | 47 --- arch/powerpc/lib/feature-fixups.c | 2 +- arch/powerpc/net/bpf_jit.h | 2 +- 15 files changed, 229 insertions(+), 378 deletions(-) -- 2.35.1
WARNING: multiple messages have this Message-ID (diff)
From: Christophe Leroy <christophe.leroy@csgroup.eu> To: "Naveen N . Rao" <naveen.n.rao@linux.vnet.ibm.com>, Steven Rostedt <rostedt@goodmis.org>, Ingo Molnar <mingo@redhat.com>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, Paul Mackerras <paulus@samba.org>, Michael Ellerman <mpe@ellerman.id.au> Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: [PATCH v1 00/22] powerpc: ftrace optimisation and cleanup and more [v1] Date: Thu, 24 Mar 2022 15:29:50 +0100 [thread overview] Message-ID: <cover.1648131740.git.christophe.leroy@csgroup.eu> (raw) 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. Christophe Leroy (22): 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/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_INST_BRANCH_MASK instead of opencoding powerpc/inst: Remove PPC_INST_BL powerpc/opcodes: Remove unused PPC_INST_XXX macros arch/powerpc/include/asm/book3s/32/pgtable.h | 2 +- arch/powerpc/include/asm/book3s/64/pgtable.h | 2 +- arch/powerpc/include/asm/code-patching.h | 53 ++- arch/powerpc/include/asm/inst.h | 13 +- arch/powerpc/include/asm/module.h | 6 +- arch/powerpc/include/asm/nohash/pgtable.h | 2 +- arch/powerpc/include/asm/ppc-opcode.h | 20 +- arch/powerpc/include/asm/sections.h | 24 +- arch/powerpc/kernel/module_32.c | 29 +- arch/powerpc/kernel/module_64.c | 10 +- arch/powerpc/kernel/trace/Makefile | 5 +- arch/powerpc/kernel/trace/ftrace.c | 390 ++++++------------- arch/powerpc/lib/code-patching.c | 47 --- arch/powerpc/lib/feature-fixups.c | 2 +- arch/powerpc/net/bpf_jit.h | 2 +- 15 files changed, 229 insertions(+), 378 deletions(-) -- 2.35.1
next reply other threads:[~2022-03-24 14:32 UTC|newest] Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-03-24 14:29 Christophe Leroy [this message] 2022-03-24 14:29 ` [PATCH v1 00/22] powerpc: ftrace optimisation and cleanup and more [v1] Christophe Leroy 2022-03-24 14:29 ` [PATCH v1 01/22] powerpc/ftrace: Refactor prepare_ftrace_return() Christophe Leroy 2022-03-24 14:29 ` Christophe Leroy 2022-03-24 14:29 ` [PATCH v1 02/22] powerpc/ftrace: Remove redundant create_branch() calls Christophe Leroy 2022-03-24 14:29 ` Christophe Leroy 2022-03-24 14:29 ` [PATCH v1 03/22] powerpc/code-patching: Inline is_offset_in_{cond}_branch_range() Christophe Leroy 2022-03-24 14:29 ` Christophe Leroy 2022-03-24 14:29 ` [PATCH v1 04/22] powerpc/ftrace: Use is_offset_in_branch_range() Christophe Leroy 2022-03-24 14:29 ` Christophe Leroy 2022-03-24 14:29 ` [PATCH v1 05/22] powerpc/code-patching: Inline create_branch() Christophe Leroy 2022-03-24 14:29 ` Christophe Leroy 2022-03-24 14:29 ` [PATCH v1 06/22] powerpc/ftrace: Inline ftrace_modify_code() Christophe Leroy 2022-03-24 14:29 ` Christophe Leroy 2022-04-18 6:07 ` Naveen N. Rao 2022-04-18 6:07 ` Naveen N. Rao 2022-04-22 9:12 ` Michael Ellerman 2022-04-22 9:12 ` Michael Ellerman 2022-05-04 11:43 ` Christophe Leroy 2022-05-04 11:43 ` Christophe Leroy 2022-03-24 14:29 ` [PATCH v1 07/22] powerpc/ftrace: Use patch_instruction() return directly Christophe Leroy 2022-03-24 14:29 ` Christophe Leroy 2022-04-18 6:21 ` Naveen N. Rao 2022-04-18 6:21 ` Naveen N. Rao 2022-04-18 19:44 ` Steven Rostedt 2022-04-18 19:44 ` Steven Rostedt 2022-05-04 12:01 ` Christophe Leroy 2022-05-04 12:01 ` Christophe Leroy 2022-03-24 14:29 ` [PATCH v1 08/22] powerpc/ftrace: Make __ftrace_make_{nop/call}() common to PPC32 and PPC64 Christophe Leroy 2022-03-24 14:29 ` Christophe Leroy 2022-04-18 6:40 ` Naveen N. Rao 2022-04-18 6:40 ` Naveen N. Rao 2022-05-04 12:19 ` Christophe Leroy 2022-05-04 12:19 ` Christophe Leroy 2022-05-06 11:41 ` Christophe Leroy 2022-05-06 11:41 ` Christophe Leroy 2022-03-24 14:29 ` [PATCH v1 09/22] powerpc/ftrace: Don't include ftrace.o for CONFIG_FTRACE_SYSCALLS Christophe Leroy 2022-03-24 14:29 ` Christophe Leroy 2022-03-24 14:30 ` [PATCH v1 10/22] powerpc/ftrace: Use CONFIG_FUNCTION_TRACER instead of CONFIG_DYNAMIC_FTRACE Christophe Leroy 2022-03-24 14:30 ` Christophe Leroy 2022-04-18 7:00 ` Naveen N. Rao 2022-04-18 7:00 ` Naveen N. Rao 2022-05-06 11:41 ` Christophe Leroy 2022-05-06 11:41 ` Christophe Leroy 2022-03-24 14:30 ` [PATCH v1 11/22] powerpc/ftrace: Remove ftrace_plt_tramps[] Christophe Leroy 2022-03-24 14:30 ` Christophe Leroy 2022-03-24 14:30 ` [PATCH v1 12/22] powerpc/ftrace: Use BRANCH_SET_LINK instead of value 1 Christophe Leroy 2022-03-24 14:30 ` Christophe Leroy 2022-03-24 14:30 ` [PATCH v1 13/22] powerpc/ftrace: Use PPC_RAW_xxx() macros instead of opencoding Christophe Leroy 2022-03-24 14:30 ` Christophe Leroy 2022-04-18 7:38 ` Naveen N. Rao 2022-04-18 7:38 ` Naveen N. Rao 2022-05-04 12:39 ` Christophe Leroy 2022-05-04 12:39 ` Christophe Leroy 2022-05-05 16:47 ` Christophe Leroy 2022-03-24 14:30 ` [PATCH v1 14/22] powerpc/ftrace: Use size macro " Christophe Leroy 2022-03-24 14:30 ` Christophe Leroy 2022-03-24 14:30 ` [PATCH v1 15/22] powerpc/ftrace: Simplify expected_nop_sequence() Christophe Leroy 2022-03-24 14:30 ` Christophe Leroy 2022-03-24 14:30 ` [PATCH v1 16/22] powerpc/ftrace: Minimise number of #ifdefs Christophe Leroy 2022-03-24 14:30 ` Christophe Leroy 2022-04-18 7:59 ` Naveen N. Rao 2022-04-18 7:59 ` Naveen N. Rao 2022-05-04 12:44 ` Christophe Leroy 2022-05-04 12:44 ` Christophe Leroy 2022-03-24 14:30 ` [PATCH v1 17/22] powerpc/inst: Add __copy_inst_from_kernel_nofault() Christophe Leroy 2022-03-24 14:30 ` Christophe Leroy 2022-03-24 14:30 ` [PATCH v1 18/22] powerpc/ftrace: Don't use copy_from_kernel_nofault() in module_trampoline_target() Christophe Leroy 2022-03-24 14:30 ` Christophe Leroy 2022-03-24 14:30 ` [PATCH v1 19/22] powerpc/inst: Remove PPC_INST_BRANCH Christophe Leroy 2022-03-24 14:30 ` Christophe Leroy 2022-03-24 14:30 ` [PATCH v1 20/22] powerpc/modules: Use PPC_INST_BRANCH_MASK instead of opencoding Christophe Leroy 2022-03-24 14:30 ` Christophe Leroy 2022-03-24 14:30 ` [PATCH v1 21/22] powerpc/inst: Remove PPC_INST_BL Christophe Leroy 2022-03-24 14:30 ` Christophe Leroy 2022-03-24 14:30 ` [PATCH v1 22/22] powerpc/opcodes: Remove unused PPC_INST_XXX macros Christophe Leroy 2022-03-24 14:30 ` Christophe Leroy
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