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[92.59.2.29]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-48ded3874c6sm3003353f8f.18.2026.10.14.05.35.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Oct 2026 05:35:47 -0700 (PDT) Sender: Julian Braha From: Julian Braha To: mark.rutland@arm.com, lpieralisi@kernel.org, sudeep.holla@kernel.org, tglx@kernel.org Cc: radu@rendec.net, vsethi@nvidia.com, maz@kernel.org, sdonthineni@nvidia.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Julian Braha Subject: [PATCH v3 1/2] irqchip: gic-v3: only select HAVE_ARM_SMCCC_DISCOVERY on arm64 Date: Wed, 14 Oct 2026 13:35:38 +0100 Message-ID: <20261014123539.2259230-2-julianbraha@gmail.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20261014123539.2259230-1-julianbraha@gmail.com> References: <20261014123539.2259230-1-julianbraha@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit ARM_PSCI_FW is always enabled for arm64, and the GICv3 driver only uses HAVE_ARM_SMCCC_DISCOVERY to identify the NVIDIA T241, which is arm64 anyway. For ARM_GIC_V3, let's only select HAVE_ARM_SMCCC_DISCOVERY on arm64. Fixes: 35727af2b15d ("irqchip/gicv3: Workaround for NVIDIA erratum T241-FABRIC-4") Suggested-by: Marc Zyngier Signed-off-by: Julian Braha --- Changes since v2: - split out changes into two patches Link to v2: https://lore.kernel.org/all/20260823180832.1246363-1-julianbraha@gmail.com/ Changes since v1: - remove select and dependency on ARM_PSCI_FW, - make the HAVE_ARM_SMCCC_DISCOVERY 'select' conditional on arm64 Link to v1: https://lore.kernel.org/all/20260801212235.2692694-1-julianbraha@gmail.com/ --- drivers/irqchip/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig index a8f8c423b795..31b7e4c90007 100644 --- a/drivers/irqchip/Kconfig +++ b/drivers/irqchip/Kconfig @@ -37,7 +37,7 @@ config ARM_GIC_V3 bool select IRQ_DOMAIN_HIERARCHY select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP - select HAVE_ARM_SMCCC_DISCOVERY + select HAVE_ARM_SMCCC_DISCOVERY if ARM64 select IRQ_MSI_IOMMU config ARM_GIC_ITS_PARENT -- 2.55.0