linux-mm.kvack.org archive mirror
 help / color / mirror / Atom feed
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



  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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210527230809.3701-4-Felix.Kuehling@amd.com \
    --to=felix.kuehling@gmail.com \
    --cc=akpm@linux-foundation.org \
    --cc=alex.sierra@amd.com \
    --cc=amd-gfx@lists.freedesktop.org \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=felix.kuehling@amd.com \
    --cc=hch@lst.de \
    --cc=jgg@nvidia.com \
    --cc=jglisse@redhat.com \
    --cc=linux-mm@kvack.org \
    --subject='Re: [RFC PATCH 3/5] include/linux/mm.h: helper to check zone device generic type' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).