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authorThierry Reding <treding@nvidia.com>2023-01-20 20:42:51 +0300
committerJoerg Roedel <jroedel@suse.de>2023-01-25 13:48:29 +0300
commit5cef282e295f7cf623672470d040716d1e3eacf2 (patch)
treecda25bacca5dec70920e8e22765bfd88cf4dc8c1 /drivers
parenta5bf3cfce8cb77d9d24613ab52d520896f83dd48 (diff)
downloadlinux-5cef282e295f7cf623672470d040716d1e3eacf2.tar.xz
iommu: dma: Use of_iommu_get_resv_regions()
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 Acked-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Link: https://lore.kernel.org/r/20230120174251.4004100-5-thierry.reding@gmail.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/iommu/dma-iommu.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index f798c44e0903..8e023f032b76 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -23,6 +23,7 @@
#include <linux/memremap.h>
#include <linux/mm.h>
#include <linux/mutex.h>
+#include <linux/of_iommu.h>
#include <linux/pci.h>
#include <linux/scatterlist.h>
#include <linux/spinlock.h>
@@ -391,6 +392,8 @@ 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_get_resv_regions(dev, list);
+ if (dev->of_node)
+ of_iommu_get_resv_regions(dev, list);
}
EXPORT_SYMBOL(iommu_dma_get_resv_regions);