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Mon, 15 May 2023 13:16:06 -0700 (PDT) Received: from tictac2.mtv.corp.google.com ([2620:15c:9d:2:9f33:9d98:277a:d4cd]) by smtp.gmail.com with ESMTPSA id a19-20020a62bd13000000b0063f0c9eadc7sm7981411pff.200.2023.05.15.13.16.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 May 2023 13:16:05 -0700 (PDT) From: Douglas Anderson To: Marc Zyngier , Thomas Gleixner , Rob Herring , Krzysztof Kozlowski , Matthias Brugger Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Allen-KH Cheng , linux-mediatek@lists.infradead.org, Eddie Huang , Hsin-Hsiung Wang , AngeloGioacchino Del Regno , wenst@chromium.org, yidilin@chromium.org, Tinghan Shen , jwerner@chromium.org, Weiyi Lu , Ben Ho , Seiya Wang , Douglas Anderson , Conor Dooley , Enric Balletbo i Serra , =?utf-8?b?TsOtY29sYXMgRi4g?= =?utf-8?b?Ui4gQS4gUHJhZG8=?= , linux-kernel@vger.kernel.org Subject: [PATCH v2 0/5] irqchip/gic-v3: Disable pseudo NMIs on Mediatek Chromebooks w/ bad FW Date: Mon, 15 May 2023 13:13:49 -0700 Message-ID: <20230515131353.v2.cover@dianders> X-Mailer: git-send-email 2.40.1.606.ga4b1b128d6-goog MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230515_131607_372504_0F1D6740 X-CRM114-Status: GOOD ( 14.23 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org As talked about in the bindings patch included in this series ("dt-bindings: interrupt-controller: arm,gic-v3: Add quirk for Mediatek SoCs w/ broken FW"), many Mediatek-based Chromebooks shipped with firmware that doesn't properly save/restore some GICR registers. This causes the system to crash if "pseudo NMIs" are turned on. This series makes sure that we never allow turning on "pseudo NMIs" if we are running with the problematic firmware. The patches in this series can land in any order and can go through entirely different trees. None of the patches are harmful on their own, but to get things fixed we need all of them. v2 fixes the quirk name and also moves the quirk out of the SoC.dtsi file and into the Chromebook file. This, unfortunately, means that mt8186-based Chromebooks are no longer handled since they don't appear to be upstream yet. :( Changes in v2: - "when CPUs are powered" => "when the GIC redistributors are..." - Changed "Fixes" tag. - Moved from mt8183.dtsi to mt8183-kukui.dtsi - Moved from mt8192.dtsi to mt8192-asurada.dtsi - Moved from mt8195.dtsi to mt8195-cherry.dtsi - mediatek,gicr-save-quirk => mediatek,broken-save-restore-fw Douglas Anderson (5): dt-bindings: interrupt-controller: arm,gic-v3: Add quirk for Mediatek SoCs w/ broken FW irqchip/gic-v3: Disable pseudo NMIs on Mediatek devices w/ firmware issues arm64: dts: mediatek: mt8183: Add mediatek,broken-save-restore-fw to kukui arm64: dts: mediatek: mt8192: Add mediatek,broken-save-restore-fw to asurada arm64: dts: mediatek: mt8195: Add mediatek,broken-save-restore-fw to cherry .../interrupt-controller/arm,gic-v3.yaml | 6 ++++++ .../arm64/boot/dts/mediatek/mt8183-kukui.dtsi | 4 ++++ .../boot/dts/mediatek/mt8192-asurada.dtsi | 4 ++++ .../boot/dts/mediatek/mt8195-cherry.dtsi | 4 ++++ drivers/irqchip/irq-gic-common.c | 8 ++++++-- drivers/irqchip/irq-gic-common.h | 1 + drivers/irqchip/irq-gic-v3.c | 20 +++++++++++++++++++ 7 files changed, 45 insertions(+), 2 deletions(-)