From: Felix Kuehling <felix.kuehling@gmail.com>
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 <alex.sierra@amd.com>
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 [thread overview]
Message-ID: <20210527230809.3701-4-Felix.Kuehling@amd.com> (raw)
In-Reply-To: <20210527230809.3701-1-Felix.Kuehling@amd.com>
From: Alex Sierra <alex.sierra@amd.com>
Helper to check if zone device page is generic type.
Signed-off-by: Alex Sierra <alex.sierra@amd.com>
---
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) &&
--
2.31.1
next prev parent reply other threads:[~2021-05-27 23:10 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-27 23:08 [RFC PATCH 0/5] Support DEVICE_GENERIC memory in migrate_vma_* Felix Kuehling
2021-05-27 23:08 ` [RFC PATCH 1/5] drm/amdkfd: add SPM support for SVM Felix Kuehling
2021-05-29 6:38 ` Christoph Hellwig
2021-05-29 18:42 ` Felix Kuehling
2021-05-27 23:08 ` [RFC PATCH 2/5] drm/amdkfd: generic type as sys mem on migration to ram Felix Kuehling
2021-05-27 23:08 ` Felix Kuehling [this message]
2021-05-27 23:08 ` [RFC PATCH 4/5] mm: add generic type support for device zone page migration Felix Kuehling
2021-05-29 6:40 ` Christoph Hellwig
2021-05-27 23:08 ` [RFC PATCH 5/5] mm: changes to unref pages with Generic type Felix Kuehling
2021-05-29 6:42 ` Christoph Hellwig
2021-05-29 18:44 ` Felix Kuehling
2021-05-28 13:08 ` [RFC PATCH 0/5] Support DEVICE_GENERIC memory in migrate_vma_* Jason Gunthorpe
2021-05-28 15:56 ` Felix Kuehling
2021-05-29 6:41 ` Christoph Hellwig
2021-05-29 18:37 ` Felix Kuehling
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