From: Christophe Leroy <christophe.leroy@csgroup.eu>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
naveen.n.rao@linux.vnet.ibm.com
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 00/25] powerpc: ftrace optimisation and cleanup and more [v3]
Date: Mon, 9 May 2022 07:35:58 +0200 [thread overview]
Message-ID: <cover.1652074503.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.
Change since v2:
- The only change in v3 is in patch 21, to fix sparse problems reported by the Robot.
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 | 38 ++-
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, 271 insertions(+), 422 deletions(-)
--
2.35.1
next reply other threads:[~2022-05-09 5:41 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-09 5:35 Christophe Leroy [this message]
2022-05-09 5:35 ` [PATCH v3 01/25] powerpc/ftrace: Refactor prepare_ftrace_return() Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 02/25] powerpc/ftrace: Remove redundant create_branch() calls Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 03/25] powerpc/code-patching: Inline is_offset_in_{cond}_branch_range() Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 04/25] powerpc/ftrace: Use is_offset_in_branch_range() Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 05/25] powerpc/code-patching: Inline create_branch() Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 06/25] powerpc/ftrace: Inline ftrace_modify_code() Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 07/25] powerpc/ftrace: Use patch_instruction() return directly Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 08/25] powerpc: Add CONFIG_PPC64_ELF_ABI_V1 and CONFIG_PPC64_ELF_ABI_V2 Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 09/25] powerpc: Replace PPC64_ELF_ABI_v{1/2} by CONFIG_PPC64_ELF_ABI_V{1/2} Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 10/25] powerpc: Finalise cleanup around ABI use Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 11/25] powerpc/ftrace: Make __ftrace_make_{nop/call}() common to PPC32 and PPC64 Christophe Leroy
2022-08-08 18:41 ` Nick Desaulniers
2022-08-08 18:47 ` Nick Desaulniers
2022-08-09 6:25 ` Naveen N. Rao
2022-05-09 5:36 ` [PATCH v3 12/25] powerpc/ftrace: Don't include ftrace.o for CONFIG_FTRACE_SYSCALLS Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 13/25] powerpc/ftrace: Use CONFIG_FUNCTION_TRACER instead of CONFIG_DYNAMIC_FTRACE Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 14/25] powerpc/ftrace: Remove ftrace_plt_tramps[] Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 15/25] powerpc/ftrace: Use BRANCH_SET_LINK instead of value 1 Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 16/25] powerpc/ftrace: Use PPC_RAW_xxx() macros instead of opencoding Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 17/25] powerpc/ftrace: Use size macro " Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 18/25] powerpc/ftrace: Simplify expected_nop_sequence() Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 19/25] powerpc/ftrace: Minimise number of #ifdefs Christophe Leroy
2022-05-18 9:45 ` Naveen N. Rao
2022-05-18 10:08 ` Christophe Leroy
2022-05-18 11:19 ` Michael Ellerman
2022-05-18 12:03 ` Michael Ellerman
2022-05-18 12:12 ` Christophe Leroy
2022-05-18 17:03 ` Naveen N. Rao
2022-05-18 12:04 ` Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 20/25] powerpc/inst: Add __copy_inst_from_kernel_nofault() Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 21/25] powerpc/ftrace: Don't use copy_from_kernel_nofault() in module_trampoline_target() Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 22/25] powerpc/inst: Remove PPC_INST_BRANCH Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 23/25] powerpc/modules: Use PPC_LI macros instead of opencoding Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 24/25] powerpc/inst: Remove PPC_INST_BL Christophe Leroy
2022-05-09 5:36 ` [PATCH v3 25/25] powerpc/opcodes: Remove unused PPC_INST_XXX macros Christophe Leroy
2022-05-24 11:09 ` [PATCH v3 00/25] powerpc: ftrace optimisation and cleanup and more [v3] Michael Ellerman
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