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authorDmitry Osipenko <digetx@gmail.com>2018-12-12 21:38:56 +0100
committerJoerg Roedel <jroedel@suse.de>2019-01-16 13:54:12 +0100
commitce2785a75dbca27375f3723f4e697a2a8dc096ee (patch)
tree89451c3cdcc2103f759587db69e6eb9355423459 /include
parentmemory: tegra: Use relaxed versions of readl/writel (diff)
downloadlinux-ce2785a75dbca27375f3723f4e697a2a8dc096ee.tar.xz
linux-ce2785a75dbca27375f3723f4e697a2a8dc096ee.zip
iommu/tegra: gart: Integrate with Memory Controller driver
The device-tree binding has been changed. There is no separate GART device anymore, it is squashed into the Memory Controller. Integrate GART module with the MC in a way it is done for the SMMU on Tegra30+. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include')
-rw-r--r--include/soc/tegra/mc.h25
1 files changed, 25 insertions, 0 deletions
diff --git a/include/soc/tegra/mc.h b/include/soc/tegra/mc.h
index db5bfdf589b4..e489a028ec9f 100644
--- a/include/soc/tegra/mc.h
+++ b/include/soc/tegra/mc.h
@@ -9,6 +9,7 @@
#ifndef __SOC_TEGRA_MC_H__
#define __SOC_TEGRA_MC_H__
+#include <linux/err.h>
#include <linux/reset-controller.h>
#include <linux/types.h>
@@ -77,6 +78,7 @@ struct tegra_smmu_soc {
struct tegra_mc;
struct tegra_smmu;
+struct gart_device;
#ifdef CONFIG_TEGRA_IOMMU_SMMU
struct tegra_smmu *tegra_smmu_probe(struct device *dev,
@@ -96,6 +98,28 @@ static inline void tegra_smmu_remove(struct tegra_smmu *smmu)
}
#endif
+#ifdef CONFIG_TEGRA_IOMMU_GART
+struct gart_device *tegra_gart_probe(struct device *dev, struct tegra_mc *mc);
+int tegra_gart_suspend(struct gart_device *gart);
+int tegra_gart_resume(struct gart_device *gart);
+#else
+static inline struct gart_device *
+tegra_gart_probe(struct device *dev, struct tegra_mc *mc)
+{
+ return ERR_PTR(-ENODEV);
+}
+
+static inline int tegra_gart_suspend(struct gart_device *gart)
+{
+ return -ENODEV;
+}
+
+static inline int tegra_gart_resume(struct gart_device *gart)
+{
+ return -ENODEV;
+}
+#endif
+
struct tegra_mc_reset {
const char *name;
unsigned long id;
@@ -144,6 +168,7 @@ struct tegra_mc_soc {
struct tegra_mc {
struct device *dev;
struct tegra_smmu *smmu;
+ struct gart_device *gart;
void __iomem *regs;
struct clk *clk;
int irq;