Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
From:   Daniel Vetter <daniel.vetter@ffwll.ch>
To:     DRI Development <dri-devel@lists.freedesktop.org>,
        LKML <linux-kernel@vger.kernel.org>
Cc:     kvm@vger.kernel.org, linux-mm@kvack.org,
        linux-arm-kernel@lists.infradead.org,
        linux-samsung-soc@vger.kernel.org, linux-media@vger.kernel.org,
        linux-s390@vger.kernel.org, Daniel Vetter <daniel.vetter@ffwll.ch>,
        Daniel Vetter <daniel.vetter@intel.com>,
        Jason Gunthorpe <jgg@ziepe.ca>,
        Andrew Morton <akpm@linux-foundation.org>,
        John Hubbard <jhubbard@nvidia.com>,
        =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= <jglisse@redhat.com>,
        Jan Kara <jack@suse.cz>,
        Dan Williams <dan.j.williams@intel.com>,
        Oded Gabbay <oded.gabbay@gmail.com>,
        Omer Shpigelman <oshpigelman@habana.ai>,
        Ofir Bitton <obitton@habana.ai>,
        Tomer Tayar <ttayar@habana.ai>,
        Moti Haimovski <mhaimovski@habana.ai>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Pawel Piskorski <ppiskorski@habana.ai>
Subject: [PATCH v2 04/17] misc/habana: Use FOLL_LONGTERM for userptr
Date:   Fri,  9 Oct 2020 09:59:21 +0200
Message-Id: <20201009075934.3509076-5-daniel.vetter@ffwll.ch>
In-Reply-To: <20201009075934.3509076-1-daniel.vetter@ffwll.ch>
References: <20201009075934.3509076-1-daniel.vetter@ffwll.ch>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Precedence: bulk

These are persistent, not just for the duration of a dma operation.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: linux-mm@kvack.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: linux-media@vger.kernel.org
Cc: Oded Gabbay <oded.gabbay@gmail.com>
Cc: Omer Shpigelman <oshpigelman@habana.ai>
Cc: Ofir Bitton <obitton@habana.ai>
Cc: Tomer Tayar <ttayar@habana.ai>
Cc: Moti Haimovski <mhaimovski@habana.ai>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Pawel Piskorski <ppiskorski@habana.ai>
---
 drivers/misc/habanalabs/common/memory.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/habanalabs/common/memory.c b/drivers/misc/habanalabs/common/memory.c
index 327b64479f97..767d3644c033 100644
--- a/drivers/misc/habanalabs/common/memory.c
+++ b/drivers/misc/habanalabs/common/memory.c
@@ -1288,7 +1288,8 @@ static int get_user_memory(struct hl_device *hdev, u64 addr, u64 size,
 		return -ENOMEM;
 	}
 
-	rc = pin_user_pages_fast(start, npages, FOLL_FORCE | FOLL_WRITE,
+	rc = pin_user_pages_fast(start, npages,
+				 FOLL_FORCE | FOLL_WRITE | FOLL_LONGTERM,
 				 userptr->pages);
 
 	if (rc != npages) {
-- 
2.28.0