3 Commits

Author	SHA1	Message	Date
Ryan Roberts	49f09526b1	selftests/mm: va_high_addr_switch should skip unsupported arm64 configs ... va_high_addr_switch has a mechanism to determine if the tests should be run or skipped (supported_arch()). This currently returns unconditionally true for arm64. However, va_high_addr_switch also requires a large virtual address space for the tests to run, otherwise they spuriously fail. Since arm64 can only support VA > 48 bits when the page size is 64K, let's decide whether we should skip the test suite based on the page size. This reduces noise when running on 4K and 16K kernels. Link: https://lkml.kernel.org/r/20230724082522.1202616-6-ryan.roberts@arm.com Signed-off-by: Ryan Roberts <ryan.roberts@arm.com> Reviewed-by: David Hildenbrand <david@redhat.com> Cc: Florent Revest <revest@chromium.org> Cc: Jérôme Glisse <jglisse@redhat.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Mark Brown <broonie@kernel.org> Cc: Peter Xu <peterx@redhat.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2023-08-18 10:12:43 -07:00
Chaitanya S Prakash	c2af2a4190	selftests/mm: add platform independent in code comments ... The in code comments for the selftest were made on the basis of 128TB switch, an architecture feature specific to PowerPc and x86 platforms. Keeping in mind the support added for arm64 platforms which implements a 256TB switch, a more generic explanation has been provided. Link: https://lkml.kernel.org/r/20230323105243.2807166-4-chaitanyas.prakash@arm.com Signed-off-by: Chaitanya S Prakash <chaitanyas.prakash@arm.com> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2023-04-18 16:53:51 -07:00
Chaitanya S Prakash	bbe168729d	selftests/mm: rename va_128TBswitch to va_high_addr_switch ... As the initial selftest only took into consideration PowperPC and x86 architectures, on adding support for arm64, a platform independent naming convention is chosen. Link: https://lkml.kernel.org/r/20230323105243.2807166-3-chaitanyas.prakash@arm.com Signed-off-by: Chaitanya S Prakash <chaitanyas.prakash@arm.com> Cc: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Shuah Khan <shuah@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>	2023-04-18 16:53:51 -07:00