From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3C03B21CC5C for ; Tue, 1 Apr 2025 22:18:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743545884; cv=none; b=PVOZIQfzFRVnvT4mTKaoSP6pKPqoDOPsyWpH57NzgSVBfobA1mgx0JItKMoSbnYCXSz41vqYZMoLzu82QPksD7eLiwZCJ/eoVLkvk1DjC366UGFkUo+08IldnhFEKRO+/d5T0fQ3wGwzdmuxpr6cXtepSU71zF9e6E3gQdc615k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743545884; c=relaxed/simple; bh=SB229MURLXHd6Y8gbzZxUn6zrxhiANfRK9jBUt5DgAM=; h=Date:To:From:Subject:Message-Id; b=NaLLeFjHNnw0Slmf0CIqYUVv4NeASRvnjwt8LkRNEJpBt1UvK7S4spwztimEnm0A04pgDuJB+hLJCzoyXRHJPcci/sNUcgKazxti3HnXBfp63GMIteoiqh9M7fgU6wWe7S/wTWqAP9G3vkMg1BIJRnYSH1ugqyoBCEC+b37l0ZA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=bFOFRyqJ; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="bFOFRyqJ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 98408C4CEE4; Tue, 1 Apr 2025 22:18:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1743545883; bh=SB229MURLXHd6Y8gbzZxUn6zrxhiANfRK9jBUt5DgAM=; h=Date:To:From:Subject:From; b=bFOFRyqJzGWSUlSnMI8P4PK4pz/aak3Y+QxoNnsxV1ttadepbE/7Ei6JQHGvnio1r Qi9fe1EdEWXhbsfQO5I4G8mXNNXA6iDHCyYuy4sHPqE5695RJabIBT/z31s9iG1mu6 +JUd2azmznchq/lh/tIaMXUGRmwP6I8mTfclgeUE= Date: Tue, 01 Apr 2025 15:18:03 -0700 To: mm-commits@vger.kernel.org,shuah@kernel.org,kirill.shutemov@linux.intel.com,dev.jain@arm.com,anshuman.khandual@arm.com,liwang@redhat.com,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-stable] selftest-mm-va_high_addr_switch-add-ppc64-support-check.patch removed from -mm tree Message-Id: <20250401221803.98408C4CEE4@smtp.kernel.org> Precedence: bulk X-Mailing-List: mm-commits@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: selftest/mm: va_high_addr_switch: add ppc64 support check has been removed from the -mm tree. Its filename was selftest-mm-va_high_addr_switch-add-ppc64-support-check.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Li Wang Subject: selftest/mm: va_high_addr_switch: add ppc64 support check Date: Thu, 27 Mar 2025 19:48:13 +0800 Add PPC64 Radix MMU support to the va_high_addr_switch.sh by introducing check_supported_ppc64(). The function verifies: - 5-level paging (PGTABLE_LEVELS >= 5) enable in kernel config - Radix MMU (required for PPC64 5-level translation) - HugePages availability (needed for some tests) If any check fails, the test is skipped (ksft_skip). This ensures compatibility with Power9/Power10 systems running in Radix MMU mode. Avoid failures on 4-level paging system: # mmap(NULL, MAP_HUGETLB): 0xffffffffffffffff - FAILED # mmap(LOW_ADDR, MAP_HUGETLB): 0xffffffffffffffff - FAILED # mmap(HIGH_ADDR, MAP_HUGETLB): 0xffffffffffffffff - FAILED # mmap(HIGH_ADDR, MAP_HUGETLB) again: 0xffffffffffffffff - FAILED # mmap(HIGH_ADDR, MAP_FIXED | MAP_HUGETLB): 0xffffffffffffffff - FAILED # mmap(-1, MAP_HUGETLB): 0xffffffffffffffff - FAILED # mmap(-1, MAP_HUGETLB) again: 0xffffffffffffffff - FAILED # mmap(ADDR_SWITCH_HINT - PAGE_SIZE, 2*HUGETLB_SIZE, MAP_HUGETLB): 0xffffffffffffffff - FAILED # mmap(ADDR_SWITCH_HINT , 2*HUGETLB_SIZE, MAP_FIXED | MAP_HUGETLB): 0xffffffffffffffff - FAILED Link: https://lkml.kernel.org/r/20250327114813.25980-1-liwang@redhat.com Signed-off-by: Li Wang Cc: Anshuman Khandual Cc: Dev Jain Cc: Kirill A. Shuemov Cc: Shuah Khan Signed-off-by: Andrew Morton --- tools/testing/selftests/mm/va_high_addr_switch.sh | 28 ++++++++++++ 1 file changed, 28 insertions(+) --- a/tools/testing/selftests/mm/va_high_addr_switch.sh~selftest-mm-va_high_addr_switch-add-ppc64-support-check +++ a/tools/testing/selftests/mm/va_high_addr_switch.sh @@ -41,6 +41,31 @@ check_supported_x86_64() fi } +check_supported_ppc64() +{ + local config="/proc/config.gz" + [[ -f "${config}" ]] || config="/boot/config-$(uname -r)" + [[ -f "${config}" ]] || fail "Cannot find kernel config in /proc or /boot" + + local pg_table_levels=$(gzip -dcfq "${config}" | grep PGTABLE_LEVELS | cut -d'=' -f 2) + if [[ "${pg_table_levels}" -lt 5 ]]; then + echo "$0: PGTABLE_LEVELS=${pg_table_levels}, must be >= 5 to run this test" + exit $ksft_skip + fi + + local mmu_support=$(grep -m1 "mmu" /proc/cpuinfo | awk '{print $3}') + if [[ "$mmu_support" != "radix" ]]; then + echo "$0: System does not use Radix MMU, required for 5-level paging" + exit $ksft_skip + fi + + local hugepages_total=$(awk '/HugePages_Total/ {print $2}' /proc/meminfo) + if [[ "${hugepages_total}" -eq 0 ]]; then + echo "$0: HugePages are not enabled, required for some tests" + exit $ksft_skip + fi +} + check_test_requirements() { # The test supports x86_64 and powerpc64. We currently have no useful @@ -50,6 +75,9 @@ check_test_requirements() "x86_64") check_supported_x86_64 ;; + "ppc64le"|"ppc64") + check_supported_ppc64 + ;; *) return 0 ;; _ Patches currently in -mm which might be from liwang@redhat.com are