From: Valentin Schneider <valentin.schneider@arm.com>
To: linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Cc: Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Marc Zyngier <maz@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Ard Biesheuvel <ardb@kernel.org>
Subject: [PATCH 0/3] irqchip/gic-v3-its: Fix LPI pending table handling vs PREEMPT_RT
Date: Fri, 22 Oct 2021 11:33:04 +0100 [thread overview]
Message-ID: <20211022103307.1711619-1-valentin.schneider@arm.com> (raw)
Hi folks,
This is my take at fixing [1]. Reading about the LPI tables situation was
entertaining.
Tested against kexec on an Ampere eMAG. Seems to be working fine atop
5.15-rc6. On the other hand, I can only issue one kexec from 5.15-rc6-rt12 - if
I then issue another one on the new kernel, I get tasks hanging. That is true
even without my patches and without CONFIG_PREEMPT_RT.
[1]: http://lore.kernel.org/r/20210810134127.1394269-3-valentin.schneider@arm.com
Cheers,
Valentin
Valentin Schneider (3):
irqchip/gic-v3-its: Give the percpu rdist struct its own flags field
irqchip/gic-v3-its: Postpone LPI pending table freeing and memreserve
irqchip/gic-v3-its: Limit memreserve cpuhp state lifetime
drivers/irqchip/irq-gic-v3-its.c | 108 ++++++++++++++++++++++++-----
include/linux/irqchip/arm-gic-v3.h | 3 +-
2 files changed, 94 insertions(+), 17 deletions(-)
--
2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Valentin Schneider <valentin.schneider@arm.com>
To: linux-kernel@vger.kernel.org, linux-rt-users@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Cc: Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Marc Zyngier <maz@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Ard Biesheuvel <ardb@kernel.org>
Subject: [PATCH 0/3] irqchip/gic-v3-its: Fix LPI pending table handling vs PREEMPT_RT
Date: Fri, 22 Oct 2021 11:33:04 +0100 [thread overview]
Message-ID: <20211022103307.1711619-1-valentin.schneider@arm.com> (raw)
Hi folks,
This is my take at fixing [1]. Reading about the LPI tables situation was
entertaining.
Tested against kexec on an Ampere eMAG. Seems to be working fine atop
5.15-rc6. On the other hand, I can only issue one kexec from 5.15-rc6-rt12 - if
I then issue another one on the new kernel, I get tasks hanging. That is true
even without my patches and without CONFIG_PREEMPT_RT.
[1]: http://lore.kernel.org/r/20210810134127.1394269-3-valentin.schneider@arm.com
Cheers,
Valentin
Valentin Schneider (3):
irqchip/gic-v3-its: Give the percpu rdist struct its own flags field
irqchip/gic-v3-its: Postpone LPI pending table freeing and memreserve
irqchip/gic-v3-its: Limit memreserve cpuhp state lifetime
drivers/irqchip/irq-gic-v3-its.c | 108 ++++++++++++++++++++++++-----
include/linux/irqchip/arm-gic-v3.h | 3 +-
2 files changed, 94 insertions(+), 17 deletions(-)
--
2.25.1
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next reply other threads:[~2021-10-22 10:33 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-22 10:33 Valentin Schneider [this message]
2021-10-22 10:33 ` [PATCH 0/3] irqchip/gic-v3-its: Fix LPI pending table handling vs PREEMPT_RT Valentin Schneider
2021-10-22 10:33 ` [PATCH 1/3] irqchip/gic-v3-its: Give the percpu rdist struct its own flags field Valentin Schneider
2021-10-22 10:33 ` Valentin Schneider
2021-10-23 9:10 ` Marc Zyngier
2021-10-23 9:10 ` Marc Zyngier
2021-10-24 15:50 ` Valentin Schneider
2021-10-24 15:50 ` Valentin Schneider
2021-10-22 10:33 ` [PATCH 2/3] irqchip/gic-v3-its: Postpone LPI pending table freeing and memreserve Valentin Schneider
2021-10-22 10:33 ` Valentin Schneider
2021-10-23 9:48 ` Marc Zyngier
2021-10-23 9:48 ` Marc Zyngier
2021-10-24 15:51 ` Valentin Schneider
2021-10-24 15:51 ` Valentin Schneider
2021-10-25 11:57 ` Marc Zyngier
2021-10-25 11:57 ` Marc Zyngier
2021-10-22 10:33 ` [PATCH 3/3] irqchip/gic-v3-its: Limit memreserve cpuhp state lifetime Valentin Schneider
2021-10-22 10:33 ` Valentin Schneider
2021-10-23 10:37 ` Marc Zyngier
2021-10-23 10:37 ` Marc Zyngier
2021-10-24 15:52 ` Valentin Schneider
2021-10-24 15:52 ` Valentin Schneider
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