From nobody Thu Apr 9 12:06:43 2026 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 5474536495C; Fri, 27 Feb 2026 07:22:18 +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=1772176938; cv=none; b=cihBwZ6tZVD8Bz6e4gCNA83TAoOuAs2ox7BcMN0iid/mWiIRxl406UfQG/1JCHtwaqJJaMllDPJRP8ZolSK1nieZkCTKWvkp4IGTFPPCmlNcV7zsSySzkoVsJfbzuLPhrNqVsASJ8Hm7wjMAQbxxnlG7RHLUNYiNjN4LbIO8NrU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772176938; c=relaxed/simple; bh=z+dkaNvhlWyuSR+41jisptO92s8T16Uh6hMmGKmav1s=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=N950CfcYat94tx8LTHzqcb0P3C4QJHsusOF2XMne6N6setdP06A7qvI/c/qRzz9dHWLmlPxTGtdxRSfYFR3vAnulTgn/qYfsbgF6MynffJrMgKn/VWVa4zvBpd1RT7I4KFlZRFYh1bXAMXmX+VAE2hF0lVhOewW9cRPZlhw8acs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=bSzmV6Tp; 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="bSzmV6Tp" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 85D81C19421; Fri, 27 Feb 2026 07:22:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772176938; bh=z+dkaNvhlWyuSR+41jisptO92s8T16Uh6hMmGKmav1s=; h=From:To:Cc:Subject:Date:From; b=bSzmV6TpnkDmJfT6r9mzcs6qtvqJPsnKKJDn9LxJasfEBXGAys6x3ddF1dWJClGs+ M8T1TtID6NI2glSAzjEgh3kIfXsnE05IUlXy2qevGQ6nvE7Ave9NBIRxPR91vvlWJK dOZsO5KXwkjQb+QWsKyPIuZQa/wYe88sfAHWqwchEn2MrClmIBbS+MYmU8KNaIOgKQ uN5kInDTt8FX61J6WN78MjE5/C4gTz8CAe0bAihoYo3wmh06Zec6jRoKvqRJUTADzS NySHkJpEVsVjmrEAezvdtVgi1QDjHLZZPwijJLRxHEg+YfXNTTWSpjr+RnpMgilv1V vCCWzP0zSJalg== From: Shawn Guo To: Wei Xu Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Shawn Guo , stable@vger.kernel.org Subject: [PATCH] arm64: dts: hisilicon: hi3798cv200: Add missing dma-ranges Date: Fri, 27 Feb 2026 15:22:10 +0800 Message-ID: <20260227072210.1350159-1-shawnguo@kernel.org> X-Mailer: git-send-email 2.47.3 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Reboot starts failing on Poplar since commit 8424ecdde7df ("arm64: mm: Set ZONE_DMA size based on devicetree's dma-ranges"), which effectively changes zone_dma_bits from 30 to 32 for arm64 platforms that do not properly define dma-ranges in device tree. It's unclear how Poplar reboot gets broken by this change exactly, but a dma-ranges limiting zone_dma to the first 1 GB fixes the regression. Fixes: 2f20182ed670 ("arm64: dts: hisilicon: add dts files for hi3798cv200-= poplar board") Cc: stable@vger.kernel.org Signed-off-by: Shawn Guo --- arch/arm64/boot/dts/hisilicon/hi3798cv200.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/hisilicon/hi3798cv200.dtsi b/arch/arm64/bo= ot/dts/hisilicon/hi3798cv200.dtsi index f6bc001c3832..2f4ad5da5e33 100644 --- a/arch/arm64/boot/dts/hisilicon/hi3798cv200.dtsi +++ b/arch/arm64/boot/dts/hisilicon/hi3798cv200.dtsi @@ -122,6 +122,7 @@ soc: soc@f0000000 { #address-cells =3D <1>; #size-cells =3D <1>; ranges =3D <0x0 0x0 0xf0000000 0x10000000>; + dma-ranges =3D <0x0 0x0 0x0 0x40000000>; =20 crg: clock-reset-controller@8a22000 { compatible =3D "hisilicon,hi3798cv200-crg", "syscon", "simple-mfd"; --=20 2.47.3