From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 33B8618CBF0 for ; Thu, 14 Nov 2024 12:35:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731587707; cv=none; b=eAte1L2I7E3MBCohQGm+EKF/VRQpyYkTs5EkI+FuU16IF7oU0ex96b3QdjQdxGfg3iVEBTI0sov4gNDZxWGLmnuJbOBfdjAUVPd3DV25g2uvOTl6M6TEK+pSy57S/w+5vE2YjEnryFnlwI2jZtHwiwkALzx4rNBl8p8Ik+rYSaI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731587707; c=relaxed/simple; bh=YrY1lDKmfjJM4c148j9/x/vsx1cxfgiuXwN9UMEADiw=; h=Date:Message-ID:From:To:Cc:Subject:In-Reply-To:References: MIME-Version:Content-Type; b=DUMAMcdvASg4OpHTFaCznxCS8/7V+Eogd7g8qmqzsfLnVcJ20TI9ax462tJM7b05AR30OJrWz9sssOaTnCnFYx+KMHPGb9mIRIZo+zF/9y3lAqepn5wXVJmptaWHNyNlMuhPzeo4bxOYlnWCCpCL06UwdCkTQ8eCDMDLRuV7oRc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=MTtjn2TR; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="MTtjn2TR" 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) Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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 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.