From: Christophe Leroy <christophe.leroy@csgroup.eu>
To: Michael Ellerman <mpe@ellerman.id.au>,
Nicholas Piggin <npiggin@gmail.com>,
sv@linux.ibm.com, agust@denx.de, jpoimboe@kernel.org,
peterz@infradead.org, jbaron@akamai.com, rostedt@goodmis.org,
ardb@kernel.org, tglx@linutronix.de, mingo@redhat.com,
bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com
Cc: chenzhongjin@huawei.com, x86@kernel.org,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 0/7] Implement inline static calls on PPC32 - v2
Date: Fri, 8 Jul 2022 19:31:19 +0200 [thread overview]
Message-ID: <cover.1657301423.git.christophe.leroy@csgroup.eu> (raw)
This series applies on top of the series v3 "objtool: Enable and
implement --mcount option on powerpc" [1] rebased on powerpc-next branch
A few modifications are done to core parts to enable powerpc
implementation:
- R_X86_64_PC32 is abstracted to R_REL32 so that it can then be
redefined as R_PPC_REL32.
- A call to static_call_init() is added to start_kernel() to avoid
every architecture to have to call it
- Trampoline address is provided to arch_static_call_transform() even
when setting a site to fallback on a call to the trampoline when the
target is too far.
[1] https://lore.kernel.org/lkml/70b6d08d-aced-7f4e-b958-a3c7ae1a9319@csgroup.eu/T/#rb3a073c54aba563a135fba891e0c34c46e47beef
Christophe Leroy (7):
powerpc: Add missing asm/asm.h for objtool
objtool/powerpc: Activate objtool on PPC32
objtool: Add architecture specific R_REL32 macro
objtool/powerpc: Add necessary support for inline static calls
init: Call static_call_init() from start_kernel()
static_call_inline: Provide trampoline address when updating sites
powerpc/static_call: Implement inline static calls
arch/powerpc/Kconfig | 3 +-
arch/powerpc/include/asm/asm.h | 7 +++
arch/powerpc/include/asm/static_call.h | 2 +
arch/powerpc/kernel/cpu_setup_6xx.S | 26 ++++++---
arch/powerpc/kernel/cpu_setup_fsl_booke.S | 8 ++-
arch/powerpc/kernel/entry_32.S | 8 ++-
arch/powerpc/kernel/head_40x.S | 5 +-
arch/powerpc/kernel/head_8xx.S | 5 +-
arch/powerpc/kernel/head_book3s_32.S | 29 +++++++---
arch/powerpc/kernel/head_fsl_booke.S | 5 +-
arch/powerpc/kernel/static_call.c | 56 ++++++++++++++-----
arch/powerpc/kernel/swsusp_32.S | 5 +-
arch/powerpc/kvm/fpu.S | 17 ++++--
arch/powerpc/platforms/52xx/lite5200_sleep.S | 15 +++--
arch/x86/kernel/static_call.c | 2 +-
init/main.c | 1 +
kernel/static_call_inline.c | 2 +-
tools/objtool/arch/powerpc/decode.c | 16 ++++--
tools/objtool/arch/powerpc/include/arch/elf.h | 1 +
tools/objtool/arch/x86/include/arch/elf.h | 1 +
tools/objtool/check.c | 10 ++--
tools/objtool/orc_gen.c | 2 +-
22 files changed, 162 insertions(+), 64 deletions(-)
create mode 100644 arch/powerpc/include/asm/asm.h
--
2.36.1
next reply other threads:[~2022-07-08 17:33 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-08 17:31 Christophe Leroy [this message]
2022-07-08 17:31 ` [PATCH v2 1/7] powerpc: Add missing asm/asm.h for objtool Christophe Leroy
2022-07-08 17:31 ` [PATCH v2 2/7] objtool/powerpc: Activate objtool on PPC32 Christophe Leroy
2022-07-08 17:31 ` [PATCH v2 3/7] objtool: Add architecture specific R_REL32 macro Christophe Leroy
2022-07-08 17:31 ` [PATCH v2 4/7] objtool/powerpc: Add necessary support for inline static calls Christophe Leroy
2022-07-08 17:31 ` [PATCH v2 5/7] init: Call static_call_init() from start_kernel() Christophe Leroy
2022-07-08 17:31 ` [PATCH v2 6/7] static_call_inline: Provide trampoline address when updating sites Christophe Leroy
2022-07-08 17:31 ` [PATCH v2 7/7] powerpc/static_call: Implement inline static calls Christophe Leroy
2022-07-09 6:52 ` [PATCH v2 0/7] Implement inline static calls on PPC32 - v2 Ard Biesheuvel
2022-09-01 16:46 ` Christophe Leroy
2022-09-08 0:13 ` Benjamin Gray
2022-09-08 6:11 ` Christophe Leroy
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