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From: Peter Zijlstra <peterz@infradead.org>
To: frederic@kernel.org, paulmck@kernel.org, rjw@rjwysocki.net,
	x86@kernel.org
Cc: linux-kernel@vger.kernel.org, peterz@infradead.org, jpoimboe@kernel.org
Subject: [RFC][PATCH 0/9] Rework cpuidle vs instrumentation
Date: Thu, 19 May 2022 23:27:50 +0200	[thread overview]
Message-ID: <20220519212750.656413111@infradead.org> (raw)

Hi,

Most of these patches (with some obvious exceptions) stem from the period when
we did the entry rewrite. I might even have posted some of them, but they
landed on the floor and went unloved for a while.

Luckily, Frederic added a comment in his context tracking rework that made me
remember these.

They build and boot x86_64. Be sure to build with DEBUG_ENTRY enabled to find
noinstr violations -- I fixed all I found, but I didn't do allyesconfig builds.

Please have a look.

  git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git sched/idle

---
 arch/alpha/kernel/process.c       |  1 -
 arch/arc/kernel/process.c         |  3 ++
 arch/arm/kernel/process.c         |  1 -
 arch/arm/mach-gemini/board-dt.c   |  3 +-
 arch/arm/mach-imx/cpuidle-imx6q.c |  5 +--
 arch/arm64/kernel/idle.c          |  1 -
 arch/csky/kernel/process.c        |  1 -
 arch/csky/kernel/smp.c            |  2 +-
 arch/h8300/kernel/process.c       |  1 +
 arch/hexagon/kernel/process.c     |  1 -
 arch/ia64/kernel/process.c        |  1 +
 arch/microblaze/kernel/process.c  |  1 -
 arch/mips/kernel/idle.c           |  8 ++---
 arch/nios2/kernel/process.c       |  1 -
 arch/openrisc/kernel/process.c    |  1 +
 arch/parisc/kernel/process.c      |  2 --
 arch/powerpc/kernel/idle.c        |  5 ++-
 arch/riscv/kernel/process.c       |  1 -
 arch/s390/kernel/idle.c           |  1 -
 arch/sh/kernel/idle.c             |  1 +
 arch/sparc/kernel/leon_pmc.c      |  4 +++
 arch/sparc/kernel/process_32.c    |  1 -
 arch/sparc/kernel/process_64.c    |  3 +-
 arch/um/kernel/process.c          |  1 -
 arch/x86/coco/tdx/tdx.c           |  3 ++
 arch/x86/events/amd/brs.c         | 13 +++-----
 arch/x86/include/asm/irqflags.h   | 11 +++----
 arch/x86/include/asm/mwait.h      |  2 +-
 arch/x86/kernel/process.c         | 64 +++++++++++++++++++--------------------
 arch/xtensa/kernel/process.c      |  1 +
 drivers/acpi/processor_idle.c     | 42 ++++++++++++++-----------
 drivers/cpuidle/cpuidle.c         | 21 +++++++------
 drivers/cpuidle/poll_state.c      |  6 +++-
 include/linux/compiler_types.h    |  8 +++--
 include/linux/cpu.h               |  3 --
 include/linux/sched/idle.h        | 29 ++++++++++++++++++
 kernel/rcu/tree.c                 |  9 ++----
 kernel/sched/idle.c               | 47 ++++++++--------------------
 kernel/time/tick-broadcast.c      |  2 +-
 tools/objtool/check.c             | 15 ++++++++-
 40 files changed, 176 insertions(+), 150 deletions(-)



             reply	other threads:[~2022-05-19 21:41 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-19 21:27 Peter Zijlstra [this message]
2022-05-19 21:27 ` [RFC][PATCH 1/9] x86/perf/amd: Remove tracing from perf_lopwr_cb() Peter Zijlstra
2022-05-19 21:27 ` [RFC][PATCH 2/9] x86/idle: Replace x86_idle with a static_call Peter Zijlstra
2022-05-30 11:07   ` Frederic Weisbecker
2022-05-19 21:27 ` [RFC][PATCH 3/9] cpuidle: Move IRQ state validation Peter Zijlstra
2022-05-30 11:36   ` Frederic Weisbecker
2022-05-30 12:00     ` Peter Zijlstra
2022-05-19 21:27 ` [RFC][PATCH 4/9] idle: Fix rcu_idle_*() usage Peter Zijlstra
2022-05-20 23:29   ` Hillf Danton
2022-05-23  9:46   ` Gautham R. Shenoy
2022-05-31  9:33     ` Peter Zijlstra
2022-05-19 21:27 ` [RFC][PATCH 5/9] rcu: Fix rcu_idle_exit() Peter Zijlstra
2022-05-20 21:00   ` Paul E. McKenney
2022-05-19 21:27 ` [RFC][PATCH 6/9] acpi_idle: Remove tracing Peter Zijlstra
2022-05-19 21:27 ` [RFC][PATCH 7/9] cpuidle: Annotate poll_idle() Peter Zijlstra
2022-05-19 21:27 ` [RFC][PATCH 8/9] objtool/idle: Validate __cpuidle code as noinstr Peter Zijlstra
2022-05-19 21:27 ` [RFC][PATCH 9/9] arch/idle: Change arch_cpu_idle() IRQ behaviour Peter Zijlstra
2022-05-19 22:03   ` Peter Zijlstra
2022-05-20  2:20     ` Kirill A. Shutemov
2022-05-20  7:06       ` Peter Zijlstra
2022-05-20 10:13         ` Kirill A. Shutemov
2022-05-20 12:58           ` Peter Zijlstra
2022-05-24 14:55             ` Isaku Yamahata
2022-05-23 10:02   ` Gautham R. Shenoy

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