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V" , "Kirill A . Shutemov" , Shuah Khan , linux-kselftest@vger.kernel.org Subject: Re: [PATCH 0/5] selftests/mm: Implement support for arm64 on va Message-Id: <20230323144910.b07df164acc1d85bc76dc933@linux-foundation.org> In-Reply-To: <20230323105243.2807166-1-chaitanyas.prakash@arm.com> References: <20230323105243.2807166-1-chaitanyas.prakash@arm.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Stat-Signature: aonz8xuitfk1mzwbhy1r14i5fr4qpbs9 X-Rspam-User: X-Rspamd-Queue-Id: 8C9FB100016 X-Rspamd-Server: rspam06 X-HE-Tag: 1679608156-629940 X-HE-Meta: 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 kjKZWpNA j9nDslNCRYEL/ogssdhgyf8I8wQ02J3+PyAN66mN0FxkcMe4WNcBrYc5r51aChFJUGLiU9AqIM6Ef/jiSt5RvRP2z93YFIGym8OQ9iYmFLMk9XCjajdqPs7zH8rYLkS5mviSnv/ELqGY4IrbwiQ+KEa0suuVweV2ro3qmswVVjQaf7imRPWGFcXia+R9s/TcKAv+8CgDOo+9hOpzPuI8t8uVwMXLj4hPxcBWD0K+1baK7CFvavojS3LU4NghVroaaGSdBe3yf+PG6SZ3O0ui9mHsQOGDT8s5UTAXtdDrXc+pFwEHnrkxgQlnXGqbL2mH8ogsLKnnCF7csLVvq26nSg3g6jnCalYC19pCRBe8+/qMgjfYOjEtjJTT9c4J/Ktjf2sVl1r59sN5bcGfMWJhTdcedew== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, 23 Mar 2023 16:22:38 +0530 Chaitanya S Prakash wrote: > The va_128TBswitch selftest is designed and implemented for PowerPC and > x86 architectures which support a 128TB switch, up to 256TB of virtual > address space and hugepage sizes of 16MB and 2MB respectively. Arm64 > platforms on the other hand support a 256Tb switch, up to 4PB of virtual > address space and a default hugepage size of 512MB when 64k pagesize is > enabled. > > These architectural differences require introducing support for arm64 > platforms, after which a more generic naming convention is suggested. > The in code comments are amended to provide a more platform independent > explanation of the working of the code and nr_hugepages are configured > as required. Finally, the file running the testcase is modified in order > to prevent skipping of hugetlb testcases of va_high_addr_switch. > > This series has been tested on 6.3.0-rc3 kernel, both on arm64 and x86 > platforms. Would it make sense to get this series into the ARM tree, so it sees more testing on ARM?