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 DC916426EA0; Thu, 14 May 2026 15:09:58 +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=1778771399; cv=none; b=qNN1zE/HRlvV5P1A2rB8tiqgWA1++y+vW9YnIXfbgkfweEDKpDNol0XaOHF7vz7SaIZyzGlPf0VtsP7VVRB96K+tOV6D5KXoYIi7vkbjCX0pfppLCoRmTfB367+xDfO6QuU34zjOUnoadltwEkrKWV0A0EUzbIgryDhZMefcO8c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778771399; c=relaxed/simple; bh=cy9qwD4R0RUofCFV/iACy338J2/CmEEb2vJEPd1fD54=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=qndXkaLXuTNUSkN9SwR/JUcCiqoHh/0kRRKZf+sLP7pcF6spk3a/gWb6ifpA4Kvpjbsa2eyahER/JSeDYzOWv49UD1qYU4Y8x81o16A1Falkfq92r9b2BGuooShImNPxh+TV/K1Yy3zER9g61G19z8VioXoM8m4bqig2LtbTvBc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=kCrq3oTq; 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="kCrq3oTq" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 46885C2BCB3; Thu, 14 May 2026 15:09:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778771397; bh=cy9qwD4R0RUofCFV/iACy338J2/CmEEb2vJEPd1fD54=; h=From:To:Cc:Subject:Date:From; b=kCrq3oTqL8crbyUlECEvMEGfArIWmtwHkzheYDZzNFxtYb9E0k2RpmthCeusQt1HJ B+wkIkZWWJ08Ez+ThA1HzCA1lcUnyaRrnZ9Qc38GMS6/5Puepo5yT9UhxggkIynJMH JKfpr99A4HjoTL3lZ6ww6wI6Im6pbjTgjzoUvHiJW6ePen/ntfil3cMs5OIkUDKjnO XEfWWqFz2CBeKLsWDG33TGAfZLroYMuUmNGckx5oKO5AjloolNI/54//e1BeokaVaU tobqKctMelv6hLUMZSqJfV9g8mg4dZ2LdfkHaGHtAHt3nj0+bzxpk3JTwP/+ZrKJK1 WG/BSVAAB3Ajw== Received: from sofa.misterjones.org ([185.219.108.64] helo=valley-girl.lan) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1wNXhC-00000002Oqg-2BOH; Thu, 14 May 2026 15:09:54 +0000 From: Marc Zyngier To: linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org Cc: Lorenzo Pieralisi , Hanjun Guo , Sudeep Holla , Catalin Marinas , Will Deacon , "Rafael J. Wysocki" , Mark Rutland , Daniel Lezcano , Thomas Gleixner , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Ge Gordon , BST Linux Kernel Upstream Group , Jesper Nilsson , Lars Persson , Alim Akhtar , Ivaylo Ivanov , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Dinh Nguyen , Matthias Brugger , AngeloGioacchino Del Regno , Thierry Reding , Jonathan Hunter , Bjorn Andersson , Konrad Dybcio , =?UTF-8?q?Andreas=20F=C3=A4rber?= , Heiko Stuebner , Shawn Lin , Orson Zhai , Baolin Wang , Michal Simek Subject: [PATCH v2 00/17] arm64: Use EL2 virtual timer when running VHE Date: Thu, 14 May 2026 16:09:28 +0100 Message-ID: <20260514150945.3917510-1-maz@kernel.org> X-Mailer: git-send-email 2.47.3 Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 185.219.108.64 X-SA-Exim-Rcpt-To: linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, lpieralisi@kernel.org, guohanjun@huawei.com, sudeep.holla@kernel.org, catalin.marinas@arm.com, will@kernel.org, rafael@kernel.org, mark.rutland@arm.com, daniel.lezcano@kernel.org, tglx@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, wens@kernel.org, jernej.skrabec@gmail.com, samuel@sholland.org, neil.armstrong@linaro.org, khilman@baylibre.com, jbrunet@baylibre.com, martin.blumenstingl@googlemail.com, gordon.ge@bst.ai, bst-upstream@bstai.top, jesper.nilsson@axis.com, lars.persson@axis.com, alim.akhtar@samsung.com, ivo.ivanov.ivanov1@gmail.com, Frank.Li@nxp.com, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, dinguyen@kernel.org, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, thierry.reding@kernel.org, jonathanh@nvidia.com, andersson@kernel.org, konradybcio@kernel.org, afaerber@suse.de, heiko@sntech.de, shawn.lin@rock-chips.com, orsonzhai@gmail.com, baolin.wang@linux.alibaba.com, michal.simek@amd.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false This is the second version of the series initially posted at [1], which - updates the ACPI GTDT parsing to deal the v3 layout and the EL2 virtual timer, - moves the architected timer driver to use it when running VHE, - fixes a number of DTs to reflect the reality of the HW. Patches based on -rc3, tested on Amlogic SM1, QC X1E, Ampere Altra, and Apple M2. * From v1: - Now also using the EL2 virtual counter, which further improve things when running at a deeper nesting level - Updated consistency checks for the platform timers when finding a GTDTv3 - Collected ABs and RBs, with thanks [1] https://lore.kernel.org/r/20260507125544.2903406-1-maz@kernel.org Marc Zyngier (17): ACPI: GTDT: Account for GTDTv3 size when walking the platform timer descriptors ACPI: GTDT: Parse information related to the EL2 virtual timer clocksource/drivers/arm_arch_timer: Default to EL2 virtual timer when running VHE dt-bindings: timer: arm,arch_timer: Fix requirements for interrupt description arm64: dts: allwinner: Add EL2 virtual timer interrupt arm64: dts: amlogic: Add EL2 virtual timer interrupt arm64: dts: bst: Add EL2 virtual timer interrupt arm64: dts: exynos: Add EL2 virtual timer interrupt arm64: dts: freescale: Add EL2 virtual timer interrupt arm64: dts: intel: Add EL2 virtual timer interrupt arm64: dts: mediatek: Add EL2 virtual timer interrupt arm64: dts: nvidia: Add EL2 virtual timer interrupt arm64: dts: qcom: Add EL2 virtual timer interrupt arm64: dts: realtek: Add EL2 virtual timer interrupt arm64: dts: rockchip: Add EL2 virtual timer interrupt arm64: dts: sprd: Add EL2 virtual timer interrupt arm64: dts: xilinx: Add EL2 virtual timer interrupt .../bindings/timer/arm,arch_timer.yaml | 21 ++++----- .../arm64/boot/dts/allwinner/sun55i-a523.dtsi | 3 +- .../boot/dts/amlogic/amlogic-a4-common.dtsi | 8 ---- arch/arm64/boot/dts/amlogic/amlogic-a4.dtsi | 8 ++++ arch/arm64/boot/dts/amlogic/amlogic-a5.dtsi | 9 ++++ arch/arm64/boot/dts/amlogic/amlogic-s6.dtsi | 3 +- arch/arm64/boot/dts/amlogic/amlogic-s7.dtsi | 3 +- arch/arm64/boot/dts/amlogic/amlogic-s7d.dtsi | 3 +- .../boot/dts/amlogic/meson-g12-common.dtsi | 13 ----- arch/arm64/boot/dts/amlogic/meson-g12.dtsi | 9 ++++ arch/arm64/boot/dts/amlogic/meson-sm1.dtsi | 10 ++++ arch/arm64/boot/dts/bst/bstc1200.dtsi | 3 +- arch/arm64/boot/dts/exynos/axis/artpec9.dtsi | 3 +- arch/arm64/boot/dts/exynos/exynos2200.dtsi | 3 +- arch/arm64/boot/dts/exynos/exynos990.dtsi | 3 +- arch/arm64/boot/dts/exynos/exynosautov9.dtsi | 3 +- arch/arm64/boot/dts/exynos/google/gs101.dtsi | 3 +- .../boot/dts/freescale/imx91_93_common.dtsi | 3 +- arch/arm64/boot/dts/freescale/imx94.dtsi | 3 +- arch/arm64/boot/dts/freescale/imx95.dtsi | 3 +- arch/arm64/boot/dts/freescale/imx952.dtsi | 3 +- arch/arm64/boot/dts/freescale/s32n79.dtsi | 3 +- .../arm64/boot/dts/intel/socfpga_agilex5.dtsi | 3 +- arch/arm64/boot/dts/mediatek/mt6779.dtsi | 3 +- arch/arm64/boot/dts/mediatek/mt8186.dtsi | 3 +- arch/arm64/boot/dts/mediatek/mt8188.dtsi | 3 +- arch/arm64/boot/dts/mediatek/mt8192.dtsi | 3 +- arch/arm64/boot/dts/mediatek/mt8195.dtsi | 3 +- arch/arm64/boot/dts/nvidia/tegra194.dtsi | 2 + arch/arm64/boot/dts/nvidia/tegra234.dtsi | 3 +- arch/arm64/boot/dts/qcom/eliza.dtsi | 3 +- arch/arm64/boot/dts/qcom/hamoa.dtsi | 3 +- arch/arm64/boot/dts/qcom/kaanapali.dtsi | 3 +- arch/arm64/boot/dts/qcom/kodiak.dtsi | 3 +- arch/arm64/boot/dts/qcom/lemans.dtsi | 3 +- arch/arm64/boot/dts/qcom/milos.dtsi | 1 + arch/arm64/boot/dts/qcom/monaco.dtsi | 3 +- arch/arm64/boot/dts/qcom/sar2130p.dtsi | 3 +- arch/arm64/boot/dts/qcom/sc7180.dtsi | 3 +- arch/arm64/boot/dts/qcom/sc8180x.dtsi | 3 +- arch/arm64/boot/dts/qcom/sc8280xp.dtsi | 3 +- arch/arm64/boot/dts/qcom/sdm670.dtsi | 3 +- arch/arm64/boot/dts/qcom/sdm845.dtsi | 3 +- arch/arm64/boot/dts/qcom/sdx75.dtsi | 1 + arch/arm64/boot/dts/qcom/sm4450.dtsi | 3 +- arch/arm64/boot/dts/qcom/sm6350.dtsi | 3 +- arch/arm64/boot/dts/qcom/sm6375.dtsi | 3 +- arch/arm64/boot/dts/qcom/sm8150.dtsi | 3 +- arch/arm64/boot/dts/qcom/sm8250.dtsi | 3 +- arch/arm64/boot/dts/qcom/sm8350.dtsi | 3 +- arch/arm64/boot/dts/qcom/sm8450.dtsi | 3 +- arch/arm64/boot/dts/qcom/sm8550.dtsi | 3 +- arch/arm64/boot/dts/qcom/sm8650.dtsi | 3 +- arch/arm64/boot/dts/qcom/sm8750.dtsi | 3 +- arch/arm64/boot/dts/qcom/talos.dtsi | 3 +- arch/arm64/boot/dts/realtek/rtd16xx.dtsi | 3 +- arch/arm64/boot/dts/rockchip/rk356x-base.dtsi | 3 +- arch/arm64/boot/dts/sprd/sc9863a.dtsi | 3 +- arch/arm64/boot/dts/sprd/ums512.dtsi | 3 +- arch/arm64/boot/dts/sprd/ums9620.dtsi | 3 +- arch/arm64/boot/dts/xilinx/versal-net.dtsi | 3 +- drivers/acpi/arm64/gtdt.c | 35 +++++++++++++- drivers/clocksource/arm_arch_timer.c | 47 +++++++++++-------- 63 files changed, 211 insertions(+), 106 deletions(-) -- 2.47.3