From: Ankur Arora <ankur.a.arora@oracle.com>
To: Haris Okanovic <harisokn@amazon.com>
Cc: ankur.a.arora@oracle.com, catalin.marinas@arm.com,
linux-pm@vger.kernel.org, kvm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, will@kernel.org,
tglx@linutronix.de, mingo@redhat.com, bp@alien8.de,
dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com,
pbonzini@redhat.com, wanpengli@tencent.com, vkuznets@redhat.com,
rafael@kernel.org, daniel.lezcano@linaro.org,
peterz@infradead.org, arnd@arndb.de, lenb@kernel.org,
mark.rutland@arm.com, mtosatti@redhat.com, sudeep.holla@arm.com,
cl@gentwo.org, misono.tomohiro@fujitsu.com, maobibo@loongson.cn,
joao.m.martins@oracle.com, boris.ostrovsky@oracle.com,
konrad.wilk@oracle.com
Subject: Re: [PATCH v8 00/11] Enable haltpoll on arm64
Date: Tue, 05 Nov 2024 10:49:03 -0800 [thread overview]
Message-ID: <87y11x5xeo.fsf@oracle.com> (raw)
In-Reply-To: <20241105183041.1531976-1-harisokn@amazon.com>
Haris Okanovic <harisokn@amazon.com> writes:
> Hi Ankur, Catalin,
>
> How about the following series based on a refactor of arm64's delay()?
> Does it address your earlier concerns?
>
> delay() already implements wfet() and falls back to wfe() w/ evstream
> or a cpu_relax loop. I refactored it to poll an address, and wrapped in
> a new platform-agnostic smp_vcond_load_relaxed() macro. More details in
> the following commit log.
Haven't looked at your series too closely but it looks quite a bit
different from the version I was working on.
Let me send out my version as well in the next few days.
--
ankur
prev parent reply other threads:[~2024-11-05 18:50 UTC|newest]
Thread overview: 77+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-25 23:24 [PATCH v8 00/11] Enable haltpoll on arm64 Ankur Arora
2024-09-25 23:24 ` [PATCH v8 01/11] cpuidle/poll_state: poll via smp_cond_load_relaxed() Ankur Arora
2024-10-15 12:04 ` Catalin Marinas
2024-10-15 16:42 ` Christoph Lameter (Ampere)
2024-10-15 16:50 ` Catalin Marinas
2024-10-15 17:17 ` Christoph Lameter (Ampere)
2024-10-15 17:40 ` Catalin Marinas
2024-10-15 21:53 ` Ankur Arora
2024-10-15 22:28 ` Christoph Lameter (Ampere)
2024-10-16 7:06 ` Ankur Arora
2024-10-17 16:54 ` Christoph Lameter (Ampere)
2024-10-17 18:36 ` Ankur Arora
2024-10-15 22:40 ` Christoph Lameter (Ampere)
2024-10-16 9:54 ` Catalin Marinas
2024-10-17 16:56 ` Christoph Lameter (Ampere)
2024-10-17 18:15 ` Catalin Marinas
2024-10-17 19:34 ` Ankur Arora
2024-10-15 21:32 ` Ankur Arora
2024-10-16 6:20 ` maobibo
2024-10-16 10:06 ` Catalin Marinas
2024-10-16 15:13 ` Okanovic, Haris
2024-10-16 17:04 ` Ankur Arora
2024-10-16 18:04 ` Okanovic, Haris
2024-10-17 14:01 ` Catalin Marinas
2024-10-17 22:47 ` Ankur Arora
2024-10-18 11:05 ` Catalin Marinas
2024-10-18 19:00 ` Ankur Arora
2024-10-21 12:02 ` Catalin Marinas
2024-09-25 23:24 ` [PATCH v8 02/11] cpuidle: rename ARCH_HAS_CPU_RELAX to ARCH_HAS_OPTIMIZED_POLL Ankur Arora
2024-09-25 23:24 ` [PATCH v8 03/11] Kconfig: move ARCH_HAS_OPTIMIZED_POLL to arch/Kconfig Ankur Arora
2024-09-25 23:24 ` [PATCH v8 04/11] cpuidle-haltpoll: define arch_haltpoll_want() Ankur Arora
2024-09-25 23:24 ` [PATCH v8 05/11] governors/haltpoll: drop kvm_para_available() check Ankur Arora
2024-09-25 23:24 ` [PATCH v8 06/11] cpuidle-haltpoll: condition on ARCH_CPUIDLE_HALTPOLL Ankur Arora
2024-09-25 23:24 ` [PATCH v8 07/11] arm64: define TIF_POLLING_NRFLAG Ankur Arora
2024-09-25 23:24 ` [PATCH v8 08/11] arm64: idle: export arch_cpu_idle Ankur Arora
2024-09-25 23:24 ` [PATCH v8 09/11] arm64: select ARCH_HAS_OPTIMIZED_POLL Ankur Arora
2024-10-14 22:48 ` Christoph Lameter (Ampere)
2024-09-25 23:24 ` [PATCH v8 10/11] cpuidle/poll_state: limit POLL_IDLE_RELAX_COUNT on arm64 Ankur Arora
2024-09-25 23:24 ` [PATCH v8 11/11] arm64: support cpuidle-haltpoll Ankur Arora
2024-10-02 22:42 ` Okanovic, Haris
2024-10-03 3:29 ` Ankur Arora
2024-10-14 22:49 ` Christoph Lameter (Ampere)
2024-10-15 1:49 ` Ankur Arora
2024-10-16 15:13 ` Okanovic, Haris
2024-10-09 2:37 ` [PATCH v8 00/11] Enable haltpoll on arm64 zhenglifeng (A)
2024-10-15 1:53 ` Ankur Arora
2024-10-14 22:54 ` Christoph Lameter (Ampere)
2024-10-15 12:36 ` Marc Zyngier
2024-10-16 21:55 ` Ankur Arora
2024-10-17 8:19 ` Marc Zyngier
2024-10-17 18:35 ` Ankur Arora
2024-10-22 22:01 ` Ankur Arora
2024-11-05 18:30 ` Haris Okanovic
2024-11-05 18:30 ` [PATCH 1/5] asm-generic: add smp_vcond_load_relaxed() Haris Okanovic
2024-11-05 19:36 ` Christoph Lameter (Ampere)
2024-11-06 17:06 ` Okanovic, Haris
2024-11-06 11:08 ` Catalin Marinas
2024-11-06 18:13 ` Okanovic, Haris
2024-11-06 19:55 ` Catalin Marinas
2024-11-06 20:31 ` Okanovic, Haris
2024-11-06 11:39 ` Will Deacon
2024-11-06 17:18 ` Okanovic, Haris
2024-11-05 18:30 ` [PATCH 2/5] arm64: add __READ_ONCE_EX() Haris Okanovic
2024-11-05 19:39 ` Christoph Lameter (Ampere)
2024-11-06 17:37 ` Okanovic, Haris
2024-11-06 11:43 ` Will Deacon
2024-11-06 17:09 ` Okanovic, Haris
2024-11-09 9:49 ` David Laight
2024-11-05 18:30 ` [PATCH 3/5] arm64: refactor delay() to enable polling for value Haris Okanovic
2024-11-05 19:42 ` Christoph Lameter (Ampere)
2024-11-06 17:42 ` Okanovic, Haris
2024-11-06 9:18 ` Catalin Marinas
2024-11-06 17:38 ` Okanovic, Haris
2024-11-05 18:30 ` [PATCH 4/5] arm64: add smp_vcond_load_relaxed() Haris Okanovic
2024-11-05 18:30 ` [PATCH 5/5] cpuidle: implement poll_idle() using smp_vcond_load_relaxed() Haris Okanovic
2024-11-05 19:45 ` Christoph Lameter (Ampere)
2024-11-05 18:49 ` Ankur Arora [this message]
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