xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

iommu/tegra: gart: Integrate with Memory Controller driver

Browse Source 
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>
This commit is contained in:
Dmitry Osipenko
2018-12-12 23:38:56 +03:00
committed by Joerg Roedel
parent 45594c683e
commit ce2785a75d
4 changed files with 87 additions and 53 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
include/soc/tegra/mc.h
View File

@@ -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;