[PATCH v2 3/5] iommu: dma: Use of_iommu_get_resv_regions()
From: Thierry Reding <hidden>
Date: 2021-04-23 16:31:58
Also in:
linux-iommu, linux-tegra
Subsystem:
iommu dma-api layer, iommu subsystem, the rest · Maintainers:
Robin Murphy, Joerg Roedel, Will Deacon, Linus Torvalds
From: Thierry Reding <redacted> 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 <redacted> Cc: devicetree@vger.kernel.org Signed-off-by: Thierry Reding <redacted> --- 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 7bcdd1205535..52b424176241 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c@@ -19,6 +19,7 @@ #include <linux/irq.h> #include <linux/mm.h> #include <linux/mutex.h> +#include <linux/of_iommu.h> #include <linux/pci.h> #include <linux/swiotlb.h> #include <linux/scatterlist.h>
@@ -190,6 +191,8 @@ 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);
--
2.30.2