From patchwork Tue Apr 8 10:50:15 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Pieralisi X-Patchwork-Id: 14043030 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8B659C3600C for ; Tue, 8 Apr 2025 13:14:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=XWlQGKvS5S/DIKdngVLDDvHLv5rD+FZpfPi8nDiTNK0=; b=yaA9cLrooUCKOzV3rlfSa/yVjq qIhRf4nGkGVEMYbAIXks0n1OGDYzFVbjP7jIbQbH42oUMn97sr+OfXOGJqgXfIlRE1o+xUj+otlnw oiw7fnNY8rUgmCdt+14VkL6X5Pwbg5AzirWVF2WVSk+2KAbad9/f0xN5zmGah8NzVM508zYng1I31 +0CTvGh7wJMOHpXeNAeFYUGcp4Q40gQvvvXn+1YzO4zjIz38UYTMTIvdnk5ARP3RwmRYG7cK0340k vG+5xp56TUck+ac0xMzR8Br/JQYcUP4bhBl7bNJQy4Z3p3UT915JqhsXmi4Lr428poVd4teFyHalp /EX3sUkQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.1 #2 (Red Hat Linux)) id 1u28ll-000000045zf-2KCP; Tue, 08 Apr 2025 13:13:37 +0000 Received: from nyc.source.kernel.org ([147.75.193.91]) by bombadil.infradead.org with esmtps (Exim 4.98.1 #2 (Red Hat Linux)) id 1u26YW-00000003kKC-3DVS for linux-arm-kernel@lists.infradead.org; Tue, 08 Apr 2025 10:51:49 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by nyc.source.kernel.org (Postfix) with ESMTP id 6481CA4914A; Tue, 8 Apr 2025 10:46:19 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B6190C4CEEB; Tue, 8 Apr 2025 10:51:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1744109507; bh=1VFamCW1T2hwFfR2ldmMdvGBnFem7jd3W15avtomy2U=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=lgJttQ21RqeRYvVhAbo24CKebPI5FCVfbMYp9EbD9S+MI+0FUXTp0a0oeKcj+HME8 Kzbfjmn3j+Uy6zK50WSb/JzseS9GhkPGN1Qbgbn+0ZmamCI766tI4gvDtiPc9TaMBy d6SfBaFlBCNSTNeZD0HsvJvRvbTSbbx9iyFBBU61jjqEhnNKIxFhHIj3+B0OoD7UvB LMdJcwHvdBPceX2HYypOaoI3b9GhrmJaWgtWllLFQSic8J7Pdb+LUOck1CrBlXFv05 y3mj2N0kMk7cBaev6wi//xxB4pP8Znu/CtQB3RF37EM2m+eP5S9SIYVZZI71oWNVsc F0rhD8OoMj4gQ== From: Lorenzo Pieralisi Date: Tue, 08 Apr 2025 12:50:15 +0200 Subject: [PATCH 16/24] arm64: cpucaps: Add GCIE capability MIME-Version: 1.0 Message-Id: <20250408-gicv5-host-v1-16-1f26db465f8d@kernel.org> References: <20250408-gicv5-host-v1-0-1f26db465f8d@kernel.org> In-Reply-To: <20250408-gicv5-host-v1-0-1f26db465f8d@kernel.org> To: Marc Zyngier , Thomas Gleixner , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Catalin Marinas , Will Deacon Cc: Sascha Bischoff , Timothy Hayes , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Lorenzo Pieralisi X-Mailer: b4 0.14.2 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250408_035148_886007_E97474CB X-CRM114-Status: GOOD ( 10.23 ) 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 Implement the GCIE capability as a strict boot cpu capability to detect whether architectural GICv5 support is available in HW. Signed-off-by: Lorenzo Pieralisi Cc: Will Deacon Cc: Catalin Marinas Cc: Marc Zyngier --- arch/arm64/kernel/cpufeature.c | 7 +++++++ arch/arm64/tools/cpucaps | 1 + 2 files changed, 8 insertions(+) diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index 9c4d6d552b25cb3a31d1fb267bd73d3f82513e69..8c60591633f3d435ad9b80a10e484f26af328964 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -3041,6 +3041,13 @@ static const struct arm64_cpu_capabilities arm64_features[] = { .matches = has_pmuv3, }, #endif + { + .desc = "GCIE", + .type = ARM64_CPUCAP_STRICT_BOOT_CPU_FEATURE, + .capability = ARM64_HAS_GCIE, + .matches = has_cpuid_feature, + ARM64_CPUID_FIELDS(ID_AA64PFR2_EL1, GCIE, IMP) + }, {}, }; diff --git a/arch/arm64/tools/cpucaps b/arch/arm64/tools/cpucaps index 772c1b008e437ed34cedb1c0f663c4dcea8f6759..e87e4bc2501f6b86352c03bd35adf33c160a577c 100644 --- a/arch/arm64/tools/cpucaps +++ b/arch/arm64/tools/cpucaps @@ -29,6 +29,7 @@ HAS_EVT HAS_FPMR HAS_FGT HAS_FPSIMD +HAS_GCIE HAS_GCS HAS_GENERIC_AUTH HAS_GENERIC_AUTH_ARCH_QARMA3