Two helpers added. One checks if zone device page is generic type. The other if page is either private or generic type.
Signed-off-by: Alex Sierra alex.sierra@amd.com --- include/linux/mm.h | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/include/linux/mm.h b/include/linux/mm.h index d48a1f0889d1..c25cdb92038f 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1187,6 +1187,14 @@ static inline bool is_device_private_page(const struct page *page) page->pgmap->type == MEMORY_DEVICE_PRIVATE; }
+static inline bool is_device_page(const struct page *page) +{ + return IS_ENABLED(CONFIG_DEV_PAGEMAP_OPS) && + is_zone_device_page(page) && + (page->pgmap->type == MEMORY_DEVICE_PRIVATE || + page->pgmap->type == MEMORY_DEVICE_GENERIC); +} + static inline bool is_pci_p2pdma_page(const struct page *page) { return IS_ENABLED(CONFIG_DEV_PAGEMAP_OPS) &&