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Fri, 23 Jul 2021 08:36:49 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1m6qfm-003xt7-80 for linux-arm-kernel@lists.infradead.org; Fri, 23 Jul 2021 08:36:47 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id CFD5760E77; Fri, 23 Jul 2021 08:36:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1627029405; bh=UyVuqNmKaOLCkr5dhRsTE6bDJ2Pg+oAGurbYq8p5lCQ=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=KfuwdXTzWBtlxfv0mIC7O1od0ef4CDsyZVwt9YRDw7Wa+5LKnmAY/6u6zLocwlLnG IHlcmVYX+x3AtEtWkH3dxTiqO72OkhkDEh4C4A65HQknRypiegceZ5QBgfk3ORvRD4 ifmguEpWfA41wmXWOERXnC1+B4E3MBAI2nVc6/MyTrPs4gD97V4R7JPHHpxE1tVyOM agh3gOQ9UYo/P3BrMwhMrWNtj5ClCgR4quLoyJ+kHFLM73qo3+c2qKVgFMySXfecuT 3qEGaYfcmTUMGsOtEr/oDb+BVKlnOlkKTC8zSqWqqI0ar/4SJJ0hKa1ejtzkNoQgHN MYDHcHVuwo1HA== Date: Fri, 23 Jul 2021 16:36:41 +0800 From: Shawn Guo To: Mathew McBride Cc: Li Yang , Ioana Ciornei , Rob Herring , linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org Subject: Re: [PATCH 2/5] arm64: dts: ls1088a: add missing PMU node Message-ID: <20210723083640.GJ30773@dragon> References: <20210722042450.11862-1-matt@traverse.com.au> <20210722042450.11862-3-matt@traverse.com.au> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210722042450.11862-3-matt@traverse.com.au> User-Agent: Mutt/1.9.4 (2018-02-28) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210723_013646_348073_1BB20A75 X-CRM114-Status: GOOD ( 17.14 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Jul 22, 2021 at 04:24:47AM +0000, Mathew McBride wrote: > The Performance Manager Unit was not described in the DTS > which meant performance event monitoring was not possible. > > This was exposed by a change to the PMU handling in KVM > in 5.11-rc3 which now prevents a PMU being exposed to a > guest when the host does not provide one: > "KVM: arm64: Don't access PMCR_EL0 when no PMU is available" > > Signed-off-by: Mathew McBride > --- > arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi > index 79ceadc9dc4a..752c7f41e6b1 100644 > --- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi > +++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi > @@ -189,6 +189,11 @@ timer { > <1 10 IRQ_TYPE_LEVEL_LOW>;/* Hypervisor PPI */ > }; > > + pmu { > + compatible = "arm,armv8-pmuv3"; > + interrupts = <1 7 0x8>; /* PMU PPI, Level low type */ Use define GIC_PPI and IRQ_TYPE_LEVEL_LOW, so that you can drop the comment. Shawn > + }; > + > psci { > compatible = "arm,psci-0.2"; > method = "smc"; > -- > 2.30.1 > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel