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authorMikko Perttunen <mperttunen@nvidia.com>2016-12-14 13:16:14 +0200
committerThierry Reding <treding@nvidia.com>2017-04-05 18:11:43 +0200
commit404bfb78daf3bedafb0bfab24947059575cbea3d (patch)
tree59b8ed6b140ce74ffeb94e1488ee7818f3b02c18 /drivers/gpu/host1x/dev.h
parent8cadb01d2c2f520a890d1bc78b45471f21b9b76d (diff)
gpu: host1x: Add IOMMU support
Add support for the Host1x unit to be located behind an IOMMU. This is required when gather buffers may be allocated non-contiguously in physical memory, as can be the case when TegraDRM is also using the IOMMU. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/host1x/dev.h')
-rw-r--r--drivers/gpu/host1x/dev.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/host1x/dev.h b/drivers/gpu/host1x/dev.h
index 06dd4f85125f..e5113acecd7a 100644
--- a/drivers/gpu/host1x/dev.h
+++ b/drivers/gpu/host1x/dev.h
@@ -19,6 +19,8 @@
#include <linux/platform_device.h>
#include <linux/device.h>
+#include <linux/iommu.h>
+#include <linux/iova.h>
#include "channel.h"
#include "syncpt.h"
@@ -108,6 +110,10 @@ struct host1x {
struct device *dev;
struct clk *clk;
+ struct iommu_domain *domain;
+ struct iova_domain iova;
+ dma_addr_t iova_end;
+
struct mutex intr_mutex;
int intr_syncpt_irq;