From 6778948f9de86c3cfaf36725a7c87dcff9ba247f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 08:20:59 +0000
Subject: [PATCH] kernel_5.10 no rt
---
kernel/include/soc/tegra/mc.h | 34 ++++++++++++++++++++++++++++------
1 files changed, 28 insertions(+), 6 deletions(-)
diff --git a/kernel/include/soc/tegra/mc.h b/kernel/include/soc/tegra/mc.h
index b43f37f..1238e35 100644
--- a/kernel/include/soc/tegra/mc.h
+++ b/kernel/include/soc/tegra/mc.h
@@ -1,14 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2014 NVIDIA Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#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 +75,7 @@
struct tegra_mc;
struct tegra_smmu;
+struct gart_device;
#ifdef CONFIG_TEGRA_IOMMU_SMMU
struct tegra_smmu *tegra_smmu_probe(struct device *dev,
@@ -93,6 +92,28 @@
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
@@ -144,7 +165,8 @@
struct tegra_mc {
struct device *dev;
struct tegra_smmu *smmu;
- void __iomem *regs, *regs2;
+ struct gart_device *gart;
+ void __iomem *regs;
struct clk *clk;
int irq;
@@ -159,7 +181,7 @@
spinlock_t lock;
};
-void tegra_mc_write_emem_configuration(struct tegra_mc *mc, unsigned long rate);
+int tegra_mc_write_emem_configuration(struct tegra_mc *mc, unsigned long rate);
unsigned int tegra_mc_get_emem_device_count(struct tegra_mc *mc);
#endif /* __SOC_TEGRA_MC_H__ */
--
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