From: Marc Zyngier <maz@kernel.org>
To: Zhou Wang <wangzhou1@hisilicon.com>
Cc: <tglx@linutronix.de>, <linux-arm-kernel@lists.infradead.org>,
<linux-doc@vger.kernel.org>, <wangwudi@hisilicon.com>,
<prime.zeng@hisilicon.com>, Nianyao Tang <tangnianyao@huawei.com>
Subject: Re: [PATCH v4] irqchip/gicv3-its: Add workaround for hip09 ITS erratum 162100801
Date: Thu, 14 Nov 2024 12:35:03 +0000 [thread overview]
Message-ID: <8634juvvrc.wl-maz@kernel.org> (raw)
In-Reply-To: <20241114082813.3865466-1-wangzhou1@hisilicon.com>
On Thu, 14 Nov 2024 08:28:13 +0000,
Zhou Wang <wangzhou1@hisilicon.com> wrote:
>
> When enabling GICv4.1 in hip09, VMAPP will fail to clear some caches
> during unmapping operation, which will cause some vSGIs lost.
>
> To fix the issue, invalidate related vPE cache through GICR_INVALLR
> after VMOVP.
>
> Suggested-by: Marc Zyngier <maz@kernel.org>
> Signed-off-by: Nianyao Tang <tangnianyao@huawei.com>
> Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com>
> ---
> Documentation/arch/arm64/silicon-errata.rst | 2 +
> arch/arm64/Kconfig | 11 +++++
> drivers/irqchip/irq-gic-v3-its.c | 52 ++++++++++++++++-----
> 3 files changed, 54 insertions(+), 11 deletions(-)
>
Reviewed-by: Marc Zyngier <maz@kernel.org>
M.
--
Without deviation from the norm, progress is not possible.
next prev parent reply other threads:[~2024-11-14 12:37 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-14 8:28 [PATCH v4] irqchip/gicv3-its: Add workaround for hip09 ITS erratum 162100801 Zhou Wang
2024-11-14 12:35 ` Marc Zyngier [this message]
2024-11-15 23:44 ` Thomas Gleixner
2024-11-16 2:53 ` Zhou Wang
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