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Sat, 16 Aug 2025 07:06:52 -0700 (PDT) Date: Sat, 16 Aug 2025 14:06:52 +0000 From: Wei Yang To: Aboorva Devarajan Cc: akpm@linux-foundation.org, Liam.Howlett@oracle.com, lorenzo.stoakes@oracle.com, shuah@kernel.org, pfalcato@suse.de, david@redhat.com, ziy@nvidia.com, baolin.wang@linux.alibaba.com, npache@redhat.com, ryan.roberts@arm.com, dev.jain@arm.com, baohua@kernel.org, richard.weiyang@gmail.com, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org, donettom@linux.ibm.com, ritesh.list@gmail.com Subject: Re: [PATCH v4 2/7] selftests/mm: Add support to test 4PB VA on PPC64 Message-ID: <20250816140652.qf52izwhltcofp3o@master> Reply-To: Wei Yang References: <20250816040113.760010-1-aboorvad@linux.ibm.com> <20250816040113.760010-3-aboorvad@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250816040113.760010-3-aboorvad@linux.ibm.com> User-Agent: NeoMutt/20170113 (1.7.2) X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: D4E0D140003 X-Stat-Signature: 84c9kzedzz3o9e7kmafkqx4qnbbwhy6o X-Rspam-User: X-HE-Tag: 1755353214-486871 X-HE-Meta: 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 GRM3oBQ+ 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 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: List-Subscribe: List-Unsubscribe: On Sat, Aug 16, 2025 at 09:31:08AM +0530, Aboorva Devarajan wrote: >From: Donet Tom > >PowerPC64 supports a 4PB virtual address space, but this test was >previously limited to 512TB. This patch extends the coverage up to >the full 4PB VA range on PowerPC64. > >Memory from 0 to 128TB is allocated without an address hint, while >allocations from 128TB to 4PB use a hint address. > >Co-developed-by: Aboorva Devarajan >Signed-off-by: Aboorva Devarajan >Reviewed-by: Dev Jain >Acked-by: David Hildenbrand >Reviewed-by: Zi Yan >Signed-off-by: Donet Tom Reviewed-by: Wei Yang -- Wei Yang Help you, Help me