From patchwork Wed Jul 17 11:10:11 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dev Jain X-Patchwork-Id: 13735365 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id AA37E3FB83; Wed, 17 Jul 2024 11:10:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721214638; cv=none; b=MxfpEJeT6e4bVlnT7m1+ocscDZwE+8l1h4vwK8xrCbg6cKTwEoisnryDFM1YeJ9tR+/7DX+G4xsDFbyCaCNuP0wvWNIG5ziZWpLl+6tLPbZ1DzbO7C3G/nYYehVLKVZD8M5AfMY52u7P7U96ygsQMBVqwE0YUBblwPVHcmcoE6k= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721214638; c=relaxed/simple; bh=nDkjnI69T9KE0jKxAoLLVrdU1MBcRYLTpfhBPKM04dM=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=quiASMaacvc9wbdblBdNn0GKYGd8dwh2sp1Q+VtkgbcEVtIpXczDcDesttIqIi4EJKVYLiGjek02vn3zs0H4okmX32RKGyOwqOr93jLUlyVJ+9LRxpBsyDHj3KubUmevNxUkEev6gjc6fFXuHN3X81jIlFF1gXSWBsSuMpwvShw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com 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 047461063; Wed, 17 Jul 2024 04:10:58 -0700 (PDT) Received: from e116581.blr.arm.com (e116581.arm.com [10.162.43.24]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 68B0B3F762; Wed, 17 Jul 2024 04:10:29 -0700 (PDT) From: Dev Jain To: akpm@linux-foundation.org, shuah@kernel.org Cc: linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org, Anshuman.Khandual@arm.com, ryan.roberts@arm.com, broonie@kernel.org, Dev Jain Subject: [PATCH] selftests/mm: Skip test for non-LPA2 and non-LVA systems Date: Wed, 17 Jul 2024 16:40:11 +0530 Message-Id: <20240717111011.316037-1-dev.jain@arm.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Post my improvement of the test: https://lore.kernel.org/all/20240522070435.773918-3-dev.jain@arm.com/ The test begins to fail on 4k and 16k pages, on non-LPA2 systems. To reduce noise in the CI systems, let us skip the test when higher address space is not implemented. Signed-off-by: Dev Jain Reviewed-by: Ryan Roberts --- The patch applies on linux-next. tools/testing/selftests/mm/va_high_addr_switch.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/mm/va_high_addr_switch.c b/tools/testing/selftests/mm/va_high_addr_switch.c index fa7eabfaf841..c6040e1d6e53 100644 --- a/tools/testing/selftests/mm/va_high_addr_switch.c +++ b/tools/testing/selftests/mm/va_high_addr_switch.c @@ -293,6 +293,18 @@ static int run_test(struct testcase *test, int count) return ret; } +/* Check if userspace VA > 48 bits */ +static int high_address_present(void) +{ + void *ptr = mmap((void *)(1UL << 50), 1, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, -1, 0); + if (ptr == MAP_FAILED) + return 0; + + munmap(ptr, 1); + return 1; +} + static int supported_arch(void) { #if defined(__powerpc64__) @@ -300,7 +312,7 @@ static int supported_arch(void) #elif defined(__x86_64__) return 1; #elif defined(__aarch64__) - return 1; + return high_address_present(); #else return 0; #endif