From: Thierry Reding <thierry.reding@gmail.com>
To: Rob Herring <robh+dt@kernel.org>, Joerg Roedel <joro@8bytes.org>
Cc: devicetree@vger.kernel.org, Will Deacon <will@kernel.org>,
Sameer Pujar <spujar@nvidia.com>,
iommu@lists.linux-foundation.org,
Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>,
Dmitry Osipenko <dmitry.osipenko@collabora.com>,
linux-tegra@vger.kernel.org, Janne Grunau <j@jannau.net>,
Robin Murphy <robin.murphy@arm.com>
Subject: [PATCH v5 3/5] iommu: dma: Use of_iommu_get_resv_regions()
Date: Thu, 12 May 2022 21:00:50 +0200 [thread overview]
Message-ID: <20220512190052.1152377-4-thierry.reding@gmail.com> (raw)
In-Reply-To: <20220512190052.1152377-1-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.
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 1ca85d37eeab..3a40ae7a450b 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/drivers/iommu/dma-iommu.c
@@ -22,6 +22,7 @@
#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/spinlock.h>
@@ -386,6 +387,8 @@ 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);
--
2.36.1
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next prev parent reply other threads:[~2022-05-12 19:01 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-12 19:00 [PATCH v5 0/5] iommu: Support mappings/reservations in reserved-memory regions Thierry Reding
2022-05-12 19:00 ` [PATCH v5 1/5] dt-bindings: reserved-memory: Document iommu-addresses Thierry Reding
2022-05-13 12:33 ` Rob Herring
2022-05-15 10:45 ` Janne Grunau
2022-05-18 13:01 ` Thierry Reding
2022-05-12 19:00 ` [PATCH v5 2/5] iommu: Implement of_iommu_get_resv_regions() Thierry Reding
2022-05-15 11:10 ` Janne Grunau
2022-05-18 12:42 ` Thierry Reding
2022-05-12 19:00 ` Thierry Reding [this message]
2022-05-12 19:00 ` [PATCH v5 4/5] iommu/tegra-smmu: Add support for reserved regions Thierry Reding
2022-05-12 19:00 ` [PATCH v5 5/5] iommu/tegra-smmu: Support managed domains Thierry Reding
2022-05-16 18:30 ` Dmitry Osipenko
2022-05-15 10:35 ` [PATCH v5 0/5] iommu: Support mappings/reservations in reserved-memory regions Janne Grunau
2022-05-18 15:29 ` Thierry Reding
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