From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EE702D41D46 for ; Thu, 14 Nov 2024 12:37:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type:MIME-Version: References:In-Reply-To:Subject:Cc:To:From:Message-ID:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=xXZPw1G2Npd/H7ZyFDOlUinJoX2GQxCe5yHLOajY4fA=; b=UFrzQWh5RsbjQpDv4VbPZVwfN3 7QF1r3Dc9WKBz49bsOJCvPNj/aPzqhiv+Td4FKzXb7QN8bpPHsUGFAR7IcAMfBpqUC9aDSt46iB7p FtjAg0TrW+i4ahzbUJR6O7uuRQGz/LAYUIPOz6gsMK4whEWiz4XoTFQHp34/KwnmAHMYkPT20dxQr cVq3/PZX1Ig2+HeVgeoF2+rmPojSL2b9I5eVkPKK5c0gVMT90k75jK0qPeybNUWjvpvzIDTPpuCg2 4jj/6IznnCHjG1ZXu908EymM4XLhcR9OgGMmc82Zbo/DmRH3zXZy6ZY2N/jj5g9gTGHUNXERqy24l z6mk0xBw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tBZ5q-00000009vsy-0Q87; Thu, 14 Nov 2024 12:37:02 +0000 Received: from nyc.source.kernel.org ([2604:1380:45d1:ec00::3]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tBZ3z-00000009vZI-3g5u for linux-arm-kernel@lists.infradead.org; Thu, 14 Nov 2024 12:35:09 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 128FDA404E8; Thu, 14 Nov 2024 12:33:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id BFD1EC4CECD; Thu, 14 Nov 2024 12:35:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1731587706; bh=YrY1lDKmfjJM4c148j9/x/vsx1cxfgiuXwN9UMEADiw=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=MTtjn2TRIcaVQuujysrryEFAtHiF8kh7VqoLSZWYbwfxxgu5u0e+4+9U5TY1vVnXk Od2IeXSJ8x/Gda6iOfipT4QYnRi/tbhd2JZ2egSxZYXwjOKhgAo1o0tOO85trUFnDb nShwZnm3uPxVZwjPCcyYpzGls4urdy4fzFSkF1ByiTUou3Sf/aE5/BD6gL1f5RSwGk cXLQnvGNgb9FLjLsm65by5VFBewqnOYV2bcvX99IESpHnuuKnH2bFJ76tipHmZgLyQ 0qrHJVptOeO1yL9ezQKjZViYLBmdyWOX3QINOCPFcsGA6cdXdGr6gUrwon1wpIsZsn EQ+fX7O14nlwg== Received: from sofa.misterjones.org ([185.219.108.64] helo=goblin-girl.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1tBZ3w-00Cpgi-8H; Thu, 14 Nov 2024 12:35:04 +0000 Date: Thu, 14 Nov 2024 12:35:03 +0000 Message-ID: <8634juvvrc.wl-maz@kernel.org> From: Marc Zyngier To: Zhou Wang Cc: , , , , , Nianyao Tang Subject: Re: [PATCH v4] irqchip/gicv3-its: Add workaround for hip09 ITS erratum 162100801 In-Reply-To: <20241114082813.3865466-1-wangzhou1@hisilicon.com> References: <20241114082813.3865466-1-wangzhou1@hisilicon.com> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/29.4 (aarch64-unknown-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: wangzhou1@hisilicon.com, tglx@linutronix.de, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, wangwudi@hisilicon.com, prime.zeng@hisilicon.com, tangnianyao@huawei.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241114_043507_999314_873F53AD X-CRM114-Status: GOOD ( 13.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, 14 Nov 2024 08:28:13 +0000, Zhou Wang 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 > Signed-off-by: Nianyao Tang > Signed-off-by: Zhou Wang > --- > 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 M. -- Without deviation from the norm, progress is not possible.