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 2/2] iommu: dma: Use of_iommu_get_resv_regions()
Date: Thu, 29 Aug 2019 13:14:07 +0200 [thread overview]
Message-ID: <20190829111407.17191-3-thierry.reding@gmail.com> (raw)
In-Reply-To: <20190829111407.17191-1-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 de68b4a02aea..31d48e55ab55 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -19,6 +19,7 @@
#include <linux/iova.h>
#include <linux/irq.h>
#include <linux/mm.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);
--
2.22.0
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https://lists.linuxfoundation.org/mailman/listinfo/iommu
next prev parent reply other threads:[~2019-08-29 11:15 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-29 11:14 [PATCH 0/2] iommu: Support reserved-memory regions Thierry Reding
2019-08-29 11:14 ` [PATCH 1/2] iommu: Implement of_iommu_get_resv_regions() Thierry Reding
2019-09-02 13:38 ` Rob Herring
2019-09-02 13:54 ` Robin Murphy
2019-09-02 15:00 ` Thierry Reding
2019-09-09 14:04 ` Will Deacon
2019-08-29 11:14 ` Thierry Reding [this message]
2019-09-02 14:22 ` [PATCH 2/2] iommu: dma: Use of_iommu_get_resv_regions() Robin Murphy
2019-09-02 14:52 ` Thierry Reding
2019-09-17 17:59 ` Will Deacon
2019-11-27 12:16 ` Thierry Reding
2019-11-27 14:16 ` Thierry Reding
2019-11-27 17:09 ` Robin Murphy
2019-11-28 11:43 ` Thierry Reding
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