devicetree.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Mathew McBride <matt@traverse.com.au>
To: Shawn Guo <shawnguo@kernel.org>, Li Yang <leoyang.li@nxp.com>,
	Ioana Ciornei <ioana.ciornei@nxp.com>,
	Rob Herring <robh+dt@kernel.org>,
	linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org
Cc: Mathew McBride <matt@traverse.com.au>
Subject: [PATCH 2/5] arm64: dts: ls1088a: add missing PMU node
Date: Thu, 22 Jul 2021 04:24:47 +0000	[thread overview]
Message-ID: <20210722042450.11862-3-matt@traverse.com.au> (raw)
In-Reply-To: <20210722042450.11862-1-matt@traverse.com.au>

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 <matt@traverse.com.au>
---
 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 */
+	};
+
 	psci {
 		compatible = "arm,psci-0.2";
 		method = "smc";
-- 
2.30.1


  parent reply	other threads:[~2021-07-22  4:26 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-22  4:24 [PATCH 0/5] Add Traverse Technologies Ten64 board DTS Mathew McBride
2021-07-22  4:24 ` [PATCH 1/5] arm64: dts: ls1088a: add internal PCS for DPMAC1 node Mathew McBride
2021-07-22  7:48   ` Ioana Ciornei
2021-07-22  4:24 ` Mathew McBride [this message]
2021-07-23  8:36   ` [PATCH 2/5] arm64: dts: ls1088a: add missing PMU node Shawn Guo
2021-07-22  4:24 ` [PATCH 3/5] dt-bindings: vendor-prefixes: add Traverse Technologies Mathew McBride
2021-07-22  4:24 ` [PATCH 4/5] dt-bindings: arm: fsl: Add Traverse Ten64 (LS1088A) board Mathew McBride
2021-07-22  4:24 ` [PATCH 5/5] arm64: dts: add device tree for Traverse Ten64 (LS1088A) Mathew McBride
2021-07-22  8:44   ` Ioana Ciornei
2021-07-23  9:46   ` Shawn Guo
2021-07-26  7:12 ` [PATCH v2 0/5] Add Traverse Technologies Ten64 board DTS Mathew McBride
2021-07-26  7:12   ` [PATCH v2 1/5] arm64: dts: ls1088a: add internal PCS for DPMAC1 node Mathew McBride
2021-07-26  7:12   ` [PATCH v2 2/5] arm64: dts: ls1088a: add missing PMU node Mathew McBride
2021-07-26  7:12   ` [PATCH v2 3/5] dt-bindings: vendor-prefixes: add Traverse Technologies Mathew McBride
2021-07-29 22:41     ` Rob Herring
2021-07-26  7:12   ` [PATCH v2 4/5] dt-bindings: arm: fsl: Add Traverse Ten64 (LS1088A) board Mathew McBride
2021-07-29 22:45     ` Rob Herring
2021-07-26  7:12   ` [PATCH v2 5/5] arm64: dts: add device tree for Traverse Ten64 (LS1088A) Mathew McBride
2021-07-29 22:45     ` Rob Herring
2021-08-10  5:38 ` [PATCH v3 0/5] Add Traverse Technologies Ten64 board DTS Mathew McBride
2021-08-10  5:38   ` [PATCH v3 1/5] arm64: dts: ls1088a: add internal PCS for DPMAC1 node Mathew McBride
2021-08-10  5:38   ` [PATCH v3 2/5] arm64: dts: ls1088a: add missing PMU node Mathew McBride
2021-08-10  5:38   ` [PATCH v3 3/5] dt-bindings: vendor-prefixes: add Traverse Technologies Mathew McBride
2021-08-10  5:38   ` [PATCH v3 4/5] dt-bindings: arm: fsl: Add Traverse Ten64 (LS1088A) board Mathew McBride
2021-08-10  5:38   ` [PATCH v3 5/5] arm64: dts: add device tree for Traverse Ten64 (LS1088A) Mathew McBride

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210722042450.11862-3-matt@traverse.com.au \
    --to=matt@traverse.com.au \
    --cc=devicetree@vger.kernel.org \
    --cc=ioana.ciornei@nxp.com \
    --cc=leoyang.li@nxp.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=robh+dt@kernel.org \
    --cc=shawnguo@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).