From: Thierry Reding <thierry.reding@gmail.com>
To: Joerg Roedel <joro@8bytes.org>
Cc: devicetree@vger.kernel.org, Frank Rowand <frowand.list@gmail.com>,
Robin Murphy <robin.murphy@arm.com>,
linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
Rob Herring <robh+dt@kernel.org>, Will Deacon <will@kernel.org>
Subject: [PATCH v2 3/4] iommu: dma: Use of_iommu_get_resv_regions()
Date: Fri, 4 Sep 2020 14:59:59 +0200 [thread overview]
Message-ID: <20200904130000.691933-3-thierry.reding@gmail.com> (raw)
In-Reply-To: <20200904130000.691933-1-thierry.reding@gmail.com>
From: Thierry Reding <treding@nvidia.com>
For device tree nodes, use the standard of_iommu_get_resv_regions()
implementation to obtain the reserved memory regions associated with a
device.
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
drivers/iommu/dma-iommu.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index 5141d49a046b..1c36ca6ec2a3 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -20,6 +20,7 @@
#include <linux/irq.h>
#include <linux/mm.h>
#include <linux/mutex.h>
+#include <linux/of_iommu.h>
#include <linux/pci.h>
#include <linux/scatterlist.h>
#include <linux/vmalloc.h>
@@ -164,6 +165,8 @@ void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list)
if (!is_of_node(dev_iommu_fwspec_get(dev)->iommu_fwnode))
iort_iommu_msi_get_resv_regions(dev, list);
+ if (dev->of_node)
+ of_iommu_get_resv_regions(dev, list);
}
EXPORT_SYMBOL(iommu_dma_get_resv_regions);
--
2.28.0
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next prev parent reply other threads:[~2020-09-04 13:00 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-04 12:59 [PATCH v2 1/4] dt-bindings: reserved-memory: Document "active" property Thierry Reding
2020-09-04 12:59 ` [PATCH v2 2/4] iommu: Implement of_iommu_get_resv_regions() Thierry Reding
2020-09-04 12:59 ` Thierry Reding [this message]
2020-09-04 13:00 ` [RFC 4/4] iommu/tegra-smmu: Add support for reserved regions Thierry Reding
2020-09-14 22:08 ` [PATCH v2 1/4] dt-bindings: reserved-memory: Document "active" property Rob Herring
2020-09-15 12:36 ` Thierry Reding
2020-09-24 11:27 ` Thierry Reding
2020-11-05 16:43 ` Thierry Reding
2020-11-05 17:47 ` Robin Murphy
2020-11-06 15:25 ` Thierry Reding
2020-11-10 19:33 ` Thierry Reding
2020-12-17 15:00 ` Thierry Reding
2020-12-18 22:15 ` Rob Herring
2020-12-19 0:49 ` Thierry Reding
2020-09-24 13:23 ` Dmitry Osipenko
2020-09-24 14:01 ` Thierry Reding
2020-09-24 16:23 ` Dmitry Osipenko
2020-09-25 12:39 ` Robin Murphy
2020-09-25 13:21 ` Dmitry Osipenko
2020-11-05 16:23 ` Thierry Reding
2020-09-25 13:52 ` Dmitry Osipenko
2020-11-05 15:57 ` Thierry Reding
2020-11-05 15:49 ` Thierry Reding
2021-01-12 19:00 ` Dmitry Osipenko
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