From mboxrd@z Thu Jan 1 00:00:00 1970 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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 034C5C52D7C for ; Thu, 22 Aug 2024 15:15:35 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4WqRYX0lLyz2ysh; Fri, 23 Aug 2024 01:13:52 +1000 (AEST) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1724339632; cv=none; b=Gb27NWvj7ILQ8T2KEJNQVWV6iOJug+iAVPeeGG4YJF+mYBXiwnFAiCi9pULgLC6WkH0tcYGjj4SjzPTOFdSYdTbkmVnWUrHoYVDT8JVPQgLTX2kkUMToR//yKjpgj9QqxTnnEmeFCyucnp7h59NxKZ1NkMWQUgs3LMKgYuZzKj4v+Rxfim7g9+nm4aUOLQuN1nVRkEJD9fa8C/kDj6Rm6ymSK7+q3Y3TO1jtW9/rSOC5wHPpd2+VZWmfB1HVaUZDCSkcahsd+6gBS+efC3YZ8ySNiqEn5IJ/sQS+MMc4PZ/EQNn1zUL6M20iJFMGQg3nfOJqvN7K8Z9XTeZL4MzzZw== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1724339632; c=relaxed/relaxed; bh=MXCzl33CgYPuUp71NFeHGj+bfZwTzvm57ZuQHOtN0OI=; h=Received:Received:From:To:Cc:Subject:Date:Message-Id:X-Mailer: In-Reply-To:References:MIME-Version:Content-Transfer-Encoding; b=UvA9WCOo8q3m9fKXJCtuR/7wQlCmvYTXVWwpUsGynPFkNBzJeXfwWU8rGBRQNuh41D3g+PZd5hx9xvX0zlKl8GrjOyYzs9QGVBH9N19xwy3vGZjlaq0Q3Id70OrN4yzaL9Opyk3qmWplmN0gjHdCk9xmUXRKuu72ryZPnADsfnBoIM4TiJBLkvfqBnqf273KNKJH5Ork5EX3q6JI6bIyMfgdq0zdtf0la6da2ynzJdQU9dvilT9np9fBsZMr9GfFALKuzMgIXaHvpFhVPwsF7Ro/MY3x8qKCtWisGC2uTW1FxJSQDiQjgrGwufkJ3zOA5sNIbqmsF9LRuBS4dhN6xQ== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass (client-ip=217.140.110.172; helo=foss.arm.com; envelope-from=joey.gouly@arm.com; receiver=lists.ozlabs.org) smtp.mailfrom=arm.com Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=arm.com (client-ip=217.140.110.172; helo=foss.arm.com; envelope-from=joey.gouly@arm.com; receiver=lists.ozlabs.org) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lists.ozlabs.org (Postfix) with ESMTP id 4WqRYW6KSQz2yhg for ; Fri, 23 Aug 2024 01:13:51 +1000 (AEST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 2889E1688; Thu, 22 Aug 2024 08:13:47 -0700 (PDT) Received: from e124191.cambridge.arm.com (e124191.cambridge.arm.com [10.1.197.45]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 0A2683F58B; Thu, 22 Aug 2024 08:13:16 -0700 (PDT) From: Joey Gouly To: linux-arm-kernel@lists.infradead.org Cc: nd@arm.com, akpm@linux-foundation.org, aneesh.kumar@kernel.org, aneesh.kumar@linux.ibm.com, anshuman.khandual@arm.com, bp@alien8.de, broonie@kernel.org, catalin.marinas@arm.com, christophe.leroy@csgroup.eu, dave.hansen@linux.intel.com, hpa@zytor.com, joey.gouly@arm.com, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, maz@kernel.org, mingo@redhat.com, mpe@ellerman.id.au, naveen.n.rao@linux.ibm.com, npiggin@gmail.com, oliver.upton@linux.dev, shuah@kernel.org, skhan@linuxfoundation.org, szabolcs.nagy@arm.com, tglx@linutronix.de, will@kernel.org, x86@kernel.org, kvmarm@lists.linux.dev, linux-kselftest@vger.kernel.org Subject: [PATCH v5 27/30] kselftest/arm64: add HWCAP test for FEAT_S1POE Date: Thu, 22 Aug 2024 16:11:10 +0100 Message-Id: <20240822151113.1479789-28-joey.gouly@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240822151113.1479789-1-joey.gouly@arm.com> References: <20240822151113.1479789-1-joey.gouly@arm.com> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Post: List-Subscribe: , , List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Check that when POE is enabled, the POR_EL0 register is accessible. Signed-off-by: Joey Gouly Cc: Catalin Marinas Cc: Will Deacon Cc: Mark Brown Cc: Shuah Khan Reviewed-by: Mark Brown --- tools/testing/selftests/arm64/abi/hwcap.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git tools/testing/selftests/arm64/abi/hwcap.c tools/testing/selftests/arm64/abi/hwcap.c index d8909b2b535a..f2d6007a2b98 100644 --- tools/testing/selftests/arm64/abi/hwcap.c +++ tools/testing/selftests/arm64/abi/hwcap.c @@ -156,6 +156,12 @@ static void pmull_sigill(void) asm volatile(".inst 0x0ee0e000" : : : ); } +static void poe_sigill(void) +{ + /* mrs x0, POR_EL0 */ + asm volatile("mrs x0, S3_3_C10_C2_4" : : : "x0"); +} + static void rng_sigill(void) { asm volatile("mrs x0, S3_3_C2_C4_0" : : : "x0"); @@ -601,6 +607,14 @@ static const struct hwcap_data { .cpuinfo = "pmull", .sigill_fn = pmull_sigill, }, + { + .name = "POE", + .at_hwcap = AT_HWCAP2, + .hwcap_bit = HWCAP2_POE, + .cpuinfo = "poe", + .sigill_fn = poe_sigill, + .sigill_reliable = true, + }, { .name = "RNG", .at_hwcap = AT_HWCAP2, -- 2.25.1