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Thu, 27 May 2021 16:10:27 -0700 (PDT) Received: from Harpoon.amd.com ([165.204.55.251]) by smtp.gmail.com with ESMTPSA id r5sm1860014ilb.1.2021.05.27.16.09.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 May 2021 16:10:04 -0700 (PDT) From: Felix Kuehling X-Google-Original-From: Felix Kuehling To: felix.kuehling@amd.com, akpm@linux-foundation.org, linux-mm@kvack.org Cc: hch@lst.de, jglisse@redhat.com, jgg@nvidia.com, dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, Alex Sierra Subject: [RFC PATCH 3/5] include/linux/mm.h: helper to check zone device generic type Date: Thu, 27 May 2021 19:08:07 -0400 Message-Id: <20210527230809.3701-4-Felix.Kuehling@amd.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210527230809.3701-1-Felix.Kuehling@amd.com> References: <20210527230809.3701-1-Felix.Kuehling@amd.com> MIME-Version: 1.0 X-Rspamd-Queue-Id: B8A88E007A65 Authentication-Results: imf05.hostedemail.com; dkim=pass header.d=gmail.com header.s=20161025 header.b=EIxTA24b; dmarc=pass (policy=none) header.from=gmail.com; spf=pass (imf05.hostedemail.com: domain of felixkuehling@gmail.com designates 209.85.166.52 as permitted sender) smtp.mailfrom=felixkuehling@gmail.com X-Rspamd-Server: rspam03 X-Stat-Signature: auzb5t7jt6qeipsz9cp3spb51hii3nem X-HE-Tag: 1622157016-457408 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000005, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Alex Sierra Helper to check if zone device page is generic type. Signed-off-by: Alex Sierra --- include/linux/mm.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/linux/mm.h b/include/linux/mm.h index c9900aedc195..1af7b9b76948 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1158,6 +1158,13 @@ static inline bool is_device_private_page(const struct page *page) page->pgmap->type == MEMORY_DEVICE_PRIVATE; } +static inline bool is_device_generic_page(const struct page *page) +{ + return IS_ENABLED(CONFIG_DEV_PAGEMAP_OPS) && + is_zone_device_page(page) && + page->pgmap->type == MEMORY_DEVICE_GENERIC; +} + static inline bool is_pci_p2pdma_page(const struct page *page) { return IS_ENABLED(CONFIG_DEV_PAGEMAP_OPS) &&