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authorArnd Bergmann <arnd@arndb.de>2015-05-13 17:54:39 +0200
committerArnd Bergmann <arnd@arndb.de>2015-05-13 17:54:39 +0200
commitfe7a5bfe18f06a418705098f6212bda2cbdcadb5 (patch)
treebdb9dc5c995700fa226d4edc8519fb8eb20e5f30
parent11f52002bfb4ceef26f04ab46cabd37e90f6b1ed (diff)
parent6f0a4d0c26f17e93f296e43c7b9f44733ea188ae (diff)
Merge tag 'tegra-for-4.2-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/drivers
Merge "ARM: tegra: Memory controller updates for v4.2-rc1" from Thierry Reding: Adds support for Tegra132 (which is mostly the same as for Tegra124, except for cache maintenance). debugfs support is also introduced for the SMMU part of the memory controller, which allows users to inspect the translation state for SWGROUPs and memory clients. * tag 'tegra-for-4.2-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: memory: tegra: Disable ARBITRATION_EMEM interrupt memory: tegra: Add Tegra132 support iommu/tegra-smmu: Add debugfs support memory: tegra: Add SWGROUP names
-rw-r--r--drivers/iommu/Kconfig2
-rw-r--r--drivers/iommu/tegra-smmu.c109
-rw-r--r--drivers/memory/tegra/Makefile1
-rw-r--r--drivers/memory/tegra/mc.c7
-rw-r--r--drivers/memory/tegra/mc.h4
-rw-r--r--drivers/memory/tegra/tegra114.c32
-rw-r--r--drivers/memory/tegra/tegra124.c79
-rw-r--r--drivers/memory/tegra/tegra30.c32
-rw-r--r--include/soc/tegra/mc.h6
9 files changed, 214 insertions, 58 deletions
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 1ae4e547b419b..73f918d066c62 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -219,7 +219,7 @@ config TEGRA_IOMMU_SMMU
select IOMMU_API
help
This driver supports the IOMMU hardware (SMMU) found on NVIDIA Tegra
- SoCs (Tegra30 up to Tegra124).
+ SoCs (Tegra30 up to Tegra132).
config EXYNOS_IOMMU
bool "Exynos IOMMU Support"
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index c845d99ecf6b8..c1f2e521dc52c 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -7,6 +7,7 @@
*/
#include <linux/bitops.h>
+#include <linux/debugfs.h>
#include <linux/err.h>
#include <linux/iommu.h>
#include <linux/kernel.h>
@@ -31,6 +32,8 @@ struct tegra_smmu {
struct mutex lock;
struct list_head list;
+
+ struct dentry *debugfs;
};
struct tegra_smmu_as {
@@ -673,6 +676,103 @@ static void tegra_smmu_ahb_enable(void)
}
}
+static int tegra_smmu_swgroups_show(struct seq_file *s, void *data)
+{
+ struct tegra_smmu *smmu = s->private;
+ unsigned int i;
+ u32 value;
+
+ seq_printf(s, "swgroup enabled ASID\n");
+ seq_printf(s, "------------------------\n");
+
+ for (i = 0; i < smmu->soc->num_swgroups; i++) {
+ const struct tegra_smmu_swgroup *group = &smmu->soc->swgroups[i];
+ const char *status;
+ unsigned int asid;
+
+ value = smmu_readl(smmu, group->reg);
+
+ if (value & SMMU_ASID_ENABLE)
+ status = "yes";
+ else
+ status = "no";
+
+ asid = value & SMMU_ASID_MASK;
+
+ seq_printf(s, "%-9s %-7s %#04x\n", group->name, status,
+ asid);
+ }
+
+ return 0;
+}
+
+static int tegra_smmu_swgroups_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, tegra_smmu_swgroups_show, inode->i_private);
+}
+
+static const struct file_operations tegra_smmu_swgroups_fops = {
+ .open = tegra_smmu_swgroups_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static int tegra_smmu_clients_show(struct seq_file *s, void *data)
+{
+ struct tegra_smmu *smmu = s->private;
+ unsigned int i;
+ u32 value;
+
+ seq_printf(s, "client enabled\n");
+ seq_printf(s, "--------------------\n");
+
+ for (i = 0; i < smmu->soc->num_clients; i++) {
+ const struct tegra_mc_client *client = &smmu->soc->clients[i];
+ const char *status;
+
+ value = smmu_readl(smmu, client->smmu.reg);
+
+ if (value & BIT(client->smmu.bit))
+ status = "yes";
+ else
+ status = "no";
+
+ seq_printf(s, "%-12s %s\n", client->name, status);
+ }
+
+ return 0;
+}
+
+static int tegra_smmu_clients_open(struct inode *inode, struct file *file)
+{
+ return single_open(file, tegra_smmu_clients_show, inode->i_private);
+}
+
+static const struct file_operations tegra_smmu_clients_fops = {
+ .open = tegra_smmu_clients_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static void tegra_smmu_debugfs_init(struct tegra_smmu *smmu)
+{
+ smmu->debugfs = debugfs_create_dir("smmu", NULL);
+ if (!smmu->debugfs)
+ return;
+
+ debugfs_create_file("swgroups", S_IRUGO, smmu->debugfs, smmu,
+ &tegra_smmu_swgroups_fops);
+ debugfs_create_file("clients", S_IRUGO, smmu->debugfs, smmu,
+ &tegra_smmu_clients_fops);
+}
+
+static void tegra_smmu_debugfs_exit(struct tegra_smmu *smmu)
+{
+ debugfs_remove_recursive(smmu->debugfs);
+}
+
struct tegra_smmu *tegra_smmu_probe(struct device *dev,
const struct tegra_smmu_soc *soc,
struct tegra_mc *mc)
@@ -743,5 +843,14 @@ struct tegra_smmu *tegra_smmu_probe(struct device *dev,
if (err < 0)
return ERR_PTR(err);
+ if (IS_ENABLED(CONFIG_DEBUG_FS))
+ tegra_smmu_debugfs_init(smmu);
+
return smmu;
}
+
+void tegra_smmu_remove(struct tegra_smmu *smmu)
+{
+ if (IS_ENABLED(CONFIG_DEBUG_FS))
+ tegra_smmu_debugfs_exit(smmu);
+}
diff --git a/drivers/memory/tegra/Makefile b/drivers/memory/tegra/Makefile
index 0d9f497b786c1..9d4f4319b5276 100644
--- a/drivers/memory/tegra/Makefile
+++ b/drivers/memory/tegra/Makefile
@@ -3,5 +3,6 @@ tegra-mc-y := mc.o
tegra-mc-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30.o
tegra-mc-$(CONFIG_ARCH_TEGRA_114_SOC) += tegra114.o
tegra-mc-$(CONFIG_ARCH_TEGRA_124_SOC) += tegra124.o
+tegra-mc-$(CONFIG_ARCH_TEGRA_132_SOC) += tegra124.o
obj-$(CONFIG_TEGRA_MC) += tegra-mc.o
diff --git a/drivers/memory/tegra/mc.c b/drivers/memory/tegra/mc.c
index fe3c44e7e1d1b..918236457c169 100644
--- a/drivers/memory/tegra/mc.c
+++ b/drivers/memory/tegra/mc.c
@@ -58,6 +58,9 @@ static const struct of_device_id tegra_mc_of_match[] = {
#ifdef CONFIG_ARCH_TEGRA_124_SOC
{ .compatible = "nvidia,tegra124-mc", .data = &tegra124_mc_soc },
#endif
+#ifdef CONFIG_ARCH_TEGRA_132_SOC
+ { .compatible = "nvidia,tegra132-mc", .data = &tegra132_mc_soc },
+#endif
{ }
};
MODULE_DEVICE_TABLE(of, tegra_mc_of_match);
@@ -273,8 +276,8 @@ static int tegra_mc_probe(struct platform_device *pdev)
value = MC_INT_DECERR_MTS | MC_INT_SECERR_SEC | MC_INT_DECERR_VPR |
MC_INT_INVALID_APB_ASID_UPDATE | MC_INT_INVALID_SMMU_PAGE |
- MC_INT_ARBITRATION_EMEM | MC_INT_SECURITY_VIOLATION |
- MC_INT_DECERR_EMEM;
+ MC_INT_SECURITY_VIOLATION | MC_INT_DECERR_EMEM;
+
mc_writel(mc, value, MC_INTMASK);
return 0;
diff --git a/drivers/memory/tegra/mc.h b/drivers/memory/tegra/mc.h
index d5d21147fc778..b7361b0a66964 100644
--- a/drivers/memory/tegra/mc.h
+++ b/drivers/memory/tegra/mc.h
@@ -37,4 +37,8 @@ extern const struct tegra_mc_soc tegra114_mc_soc;
extern const struct tegra_mc_soc tegra124_mc_soc;
#endif
+#ifdef CONFIG_ARCH_TEGRA_132_SOC
+extern const struct tegra_mc_soc tegra132_mc_soc;
+#endif
+
#endif /* MEMORY_TEGRA_MC_H */
diff --git a/drivers/memory/tegra/tegra114.c b/drivers/memory/tegra/tegra114.c
index 511e9a25c151c..9f579589e8000 100644
--- a/drivers/memory/tegra/tegra114.c
+++ b/drivers/memory/tegra/tegra114.c
@@ -896,22 +896,22 @@ static const struct tegra_mc_client tegra114_mc_clients[] = {
};
static const struct tegra_smmu_swgroup tegra114_swgroups[] = {
- { .swgroup = TEGRA_SWGROUP_DC, .reg = 0x240 },
- { .swgroup = TEGRA_SWGROUP_DCB, .reg = 0x244 },
- { .swgroup = TEGRA_SWGROUP_EPP, .reg = 0x248 },
- { .swgroup = TEGRA_SWGROUP_G2, .reg = 0x24c },
- { .swgroup = TEGRA_SWGROUP_AVPC, .reg = 0x23c },
- { .swgroup = TEGRA_SWGROUP_NV, .reg = 0x268 },
- { .swgroup = TEGRA_SWGROUP_HDA, .reg = 0x254 },
- { .swgroup = TEGRA_SWGROUP_HC, .reg = 0x250 },
- { .swgroup = TEGRA_SWGROUP_MSENC, .reg = 0x264 },
- { .swgroup = TEGRA_SWGROUP_PPCS, .reg = 0x270 },
- { .swgroup = TEGRA_SWGROUP_VDE, .reg = 0x27c },
- { .swgroup = TEGRA_SWGROUP_VI, .reg = 0x280 },
- { .swgroup = TEGRA_SWGROUP_ISP, .reg = 0x258 },
- { .swgroup = TEGRA_SWGROUP_XUSB_HOST, .reg = 0x288 },
- { .swgroup = TEGRA_SWGROUP_XUSB_DEV, .reg = 0x28c },
- { .swgroup = TEGRA_SWGROUP_TSEC, .reg = 0x294 },
+ { .name = "dc", .swgroup = TEGRA_SWGROUP_DC, .reg = 0x240 },
+ { .name = "dcb", .swgroup = TEGRA_SWGROUP_DCB, .reg = 0x244 },
+ { .name = "epp", .swgroup = TEGRA_SWGROUP_EPP, .reg = 0x248 },
+ { .name = "g2", .swgroup = TEGRA_SWGROUP_G2, .reg = 0x24c },
+ { .name = "avpc", .swgroup = TEGRA_SWGROUP_AVPC, .reg = 0x23c },
+ { .name = "nv", .swgroup = TEGRA_SWGROUP_NV, .reg = 0x268 },
+ { .name = "hda", .swgroup = TEGRA_SWGROUP_HDA, .reg = 0x254 },
+ { .name = "hc", .swgroup = TEGRA_SWGROUP_HC, .reg = 0x250 },
+ { .name = "msenc", .swgroup = TEGRA_SWGROUP_MSENC, .reg = 0x264 },
+ { .name = "ppcs", .swgroup = TEGRA_SWGROUP_PPCS, .reg = 0x270 },
+ { .name = "vde", .swgroup = TEGRA_SWGROUP_VDE, .reg = 0x27c },
+ { .name = "vi", .swgroup = TEGRA_SWGROUP_VI, .reg = 0x280 },
+ { .name = "isp", .swgroup = TEGRA_SWGROUP_ISP, .reg = 0x258 },
+ { .name = "xusb_host", .swgroup = TEGRA_SWGROUP_XUSB_HOST, .reg = 0x288 },
+ { .name = "xusb_dev", .swgroup = TEGRA_SWGROUP_XUSB_DEV, .reg = 0x28c },
+ { .name = "tsec", .swgroup = TEGRA_SWGROUP_TSEC, .reg = 0x294 },
};
static void tegra114_flush_dcache(struct page *page, unsigned long offset,
diff --git a/drivers/memory/tegra/tegra124.c b/drivers/memory/tegra/tegra124.c
index 278d40b854c15..b996dfb9358bc 100644
--- a/drivers/memory/tegra/tegra124.c
+++ b/drivers/memory/tegra/tegra124.c
@@ -934,29 +934,29 @@ static const struct tegra_mc_client tegra124_mc_clients[] = {
};
static const struct tegra_smmu_swgroup tegra124_swgroups[] = {
- { .swgroup = TEGRA_SWGROUP_DC, .reg = 0x240 },
- { .swgroup = TEGRA_SWGROUP_DCB, .reg = 0x244 },
- { .swgroup = TEGRA_SWGROUP_AFI, .reg = 0x238 },
- { .swgroup = TEGRA_SWGROUP_AVPC, .reg = 0x23c },
- { .swgroup = TEGRA_SWGROUP_HDA, .reg = 0x254 },
- { .swgroup = TEGRA_SWGROUP_HC, .reg = 0x250 },
- { .swgroup = TEGRA_SWGROUP_MSENC, .reg = 0x264 },
- { .swgroup = TEGRA_SWGROUP_PPCS, .reg = 0x270 },
- { .swgroup = TEGRA_SWGROUP_SATA, .reg = 0x274 },
- { .swgroup = TEGRA_SWGROUP_VDE, .reg = 0x27c },
- { .swgroup = TEGRA_SWGROUP_ISP2, .reg = 0x258 },
- { .swgroup = TEGRA_SWGROUP_XUSB_HOST, .reg = 0x288 },
- { .swgroup = TEGRA_SWGROUP_XUSB_DEV, .reg = 0x28c },
- { .swgroup = TEGRA_SWGROUP_ISP2B, .reg = 0xaa4 },
- { .swgroup = TEGRA_SWGROUP_TSEC, .reg = 0x294 },
- { .swgroup = TEGRA_SWGROUP_A9AVP, .reg = 0x290 },
- { .swgroup = TEGRA_SWGROUP_GPU, .reg = 0xaac },
- { .swgroup = TEGRA_SWGROUP_SDMMC1A, .reg = 0xa94 },
- { .swgroup = TEGRA_SWGROUP_SDMMC2A, .reg = 0xa98 },
- { .swgroup = TEGRA_SWGROUP_SDMMC3A, .reg = 0xa9c },
- { .swgroup = TEGRA_SWGROUP_SDMMC4A, .reg = 0xaa0 },
- { .swgroup = TEGRA_SWGROUP_VIC, .reg = 0x284 },
- { .swgroup = TEGRA_SWGROUP_VI, .reg = 0x280 },
+ { .name = "dc", .swgroup = TEGRA_SWGROUP_DC, .reg = 0x240 },
+ { .name = "dcb", .swgroup = TEGRA_SWGROUP_DCB, .reg = 0x244 },
+ { .name = "afi", .swgroup = TEGRA_SWGROUP_AFI, .reg = 0x238 },
+ { .name = "avpc", .swgroup = TEGRA_SWGROUP_AVPC, .reg = 0x23c },
+ { .name = "hda", .swgroup = TEGRA_SWGROUP_HDA, .reg = 0x254 },
+ { .name = "hc", .swgroup = TEGRA_SWGROUP_HC, .reg = 0x250 },
+ { .name = "msenc", .swgroup = TEGRA_SWGROUP_MSENC, .reg = 0x264 },
+ { .name = "ppcs", .swgroup = TEGRA_SWGROUP_PPCS, .reg = 0x270 },
+ { .name = "sata", .swgroup = TEGRA_SWGROUP_SATA, .reg = 0x274 },
+ { .name = "vde", .swgroup = TEGRA_SWGROUP_VDE, .reg = 0x27c },
+ { .name = "isp2", .swgroup = TEGRA_SWGROUP_ISP2, .reg = 0x258 },
+ { .name = "xusb_host", .swgroup = TEGRA_SWGROUP_XUSB_HOST, .reg = 0x288 },
+ { .name = "xusb_dev", .swgroup = TEGRA_SWGROUP_XUSB_DEV, .reg = 0x28c },
+ { .name = "isp2b", .swgroup = TEGRA_SWGROUP_ISP2B, .reg = 0xaa4 },
+ { .name = "tsec", .swgroup = TEGRA_SWGROUP_TSEC, .reg = 0x294 },
+ { .name = "a9avp", .swgroup = TEGRA_SWGROUP_A9AVP, .reg = 0x290 },
+ { .name = "gpu", .swgroup = TEGRA_SWGROUP_GPU, .reg = 0xaac },
+ { .name = "sdmmc1a", .swgroup = TEGRA_SWGROUP_SDMMC1A, .reg = 0xa94 },
+ { .name = "sdmmc2a", .swgroup = TEGRA_SWGROUP_SDMMC2A, .reg = 0xa98 },
+ { .name = "sdmmc3a", .swgroup = TEGRA_SWGROUP_SDMMC3A, .reg = 0xa9c },
+ { .name = "sdmmc4a", .swgroup = TEGRA_SWGROUP_SDMMC4A, .reg = 0xaa0 },
+ { .name = "vic", .swgroup = TEGRA_SWGROUP_VIC, .reg = 0x284 },
+ { .name = "vi", .swgroup = TEGRA_SWGROUP_VI, .reg = 0x280 },
};
#ifdef CONFIG_ARCH_TEGRA_124_SOC
@@ -993,3 +993,36 @@ const struct tegra_mc_soc tegra124_mc_soc = {
.smmu = &tegra124_smmu_soc,
};
#endif /* CONFIG_ARCH_TEGRA_124_SOC */
+
+#ifdef CONFIG_ARCH_TEGRA_132_SOC
+static void tegra132_flush_dcache(struct page *page, unsigned long offset,
+ size_t size)
+{
+ void *virt = page_address(page) + offset;
+
+ __flush_dcache_area(virt, size);
+}
+
+static const struct tegra_smmu_ops tegra132_smmu_ops = {
+ .flush_dcache = tegra132_flush_dcache,
+};
+
+static const struct tegra_smmu_soc tegra132_smmu_soc = {
+ .clients = tegra124_mc_clients,
+ .num_clients = ARRAY_SIZE(tegra124_mc_clients),
+ .swgroups = tegra124_swgroups,
+ .num_swgroups = ARRAY_SIZE(tegra124_swgroups),
+ .supports_round_robin_arbitration = true,
+ .supports_request_limit = true,
+ .num_asids = 128,
+ .ops = &tegra132_smmu_ops,
+};
+
+const struct tegra_mc_soc tegra132_mc_soc = {
+ .clients = tegra124_mc_clients,
+ .num_clients = ARRAY_SIZE(tegra124_mc_clients),
+ .num_address_bits = 34,
+ .atom_size = 32,
+ .smmu = &tegra132_smmu_soc,
+};
+#endif /* CONFIG_ARCH_TEGRA_132_SOC */
diff --git a/drivers/memory/tegra/tegra30.c b/drivers/memory/tegra/tegra30.c
index 71fe9376fe533..1abcd8f6f3ba6 100644
--- a/drivers/memory/tegra/tegra30.c
+++ b/drivers/memory/tegra/tegra30.c
@@ -918,22 +918,22 @@ static const struct tegra_mc_client tegra30_mc_clients[] = {
};
static const struct tegra_smmu_swgroup tegra30_swgroups[] = {
- { .swgroup = TEGRA_SWGROUP_DC, .reg = 0x240 },
- { .swgroup = TEGRA_SWGROUP_DCB, .reg = 0x244 },
- { .swgroup = TEGRA_SWGROUP_EPP, .reg = 0x248 },
- { .swgroup = TEGRA_SWGROUP_G2, .reg = 0x24c },
- { .swgroup = TEGRA_SWGROUP_MPE, .reg = 0x264 },
- { .swgroup = TEGRA_SWGROUP_VI, .reg = 0x280 },
- { .swgroup = TEGRA_SWGROUP_AFI, .reg = 0x238 },
- { .swgroup = TEGRA_SWGROUP_AVPC, .reg = 0x23c },
- { .swgroup = TEGRA_SWGROUP_NV, .reg = 0x268 },
- { .swgroup = TEGRA_SWGROUP_NV2, .reg = 0x26c },
- { .swgroup = TEGRA_SWGROUP_HDA, .reg = 0x254 },
- { .swgroup = TEGRA_SWGROUP_HC, .reg = 0x250 },
- { .swgroup = TEGRA_SWGROUP_PPCS, .reg = 0x270 },
- { .swgroup = TEGRA_SWGROUP_SATA, .reg = 0x278 },
- { .swgroup = TEGRA_SWGROUP_VDE, .reg = 0x27c },
- { .swgroup = TEGRA_SWGROUP_ISP, .reg = 0x258 },
+ { .name = "dc", .swgroup = TEGRA_SWGROUP_DC, .reg = 0x240 },
+ { .name = "dcb", .swgroup = TEGRA_SWGROUP_DCB, .reg = 0x244 },
+ { .name = "epp", .swgroup = TEGRA_SWGROUP_EPP, .reg = 0x248 },
+ { .name = "g2", .swgroup = TEGRA_SWGROUP_G2, .reg = 0x24c },
+ { .name = "mpe", .swgroup = TEGRA_SWGROUP_MPE, .reg = 0x264 },
+ { .name = "vi", .swgroup = TEGRA_SWGROUP_VI, .reg = 0x280 },
+ { .name = "afi", .swgroup = TEGRA_SWGROUP_AFI, .reg = 0x238 },
+ { .name = "avpc", .swgroup = TEGRA_SWGROUP_AVPC, .reg = 0x23c },
+ { .name = "nv", .swgroup = TEGRA_SWGROUP_NV, .reg = 0x268 },
+ { .name = "nv2", .swgroup = TEGRA_SWGROUP_NV2, .reg = 0x26c },
+ { .name = "hda", .swgroup = TEGRA_SWGROUP_HDA, .reg = 0x254 },
+ { .name = "hc", .swgroup = TEGRA_SWGROUP_HC, .reg = 0x250 },
+ { .name = "ppcs", .swgroup = TEGRA_SWGROUP_PPCS, .reg = 0x270 },
+ { .name = "sata", .swgroup = TEGRA_SWGROUP_SATA, .reg = 0x278 },
+ { .name = "vde", .swgroup = TEGRA_SWGROUP_VDE, .reg = 0x27c },
+ { .name = "isp", .swgroup = TEGRA_SWGROUP_ISP, .reg = 0x258 },
};
static void tegra30_flush_dcache(struct page *page, unsigned long offset,
diff --git a/include/soc/tegra/mc.h b/include/soc/tegra/mc.h
index 63deb8d9f82af..e5ba518aaece5 100644
--- a/include/soc/tegra/mc.h
+++ b/include/soc/tegra/mc.h
@@ -40,6 +40,7 @@ struct tegra_mc_client {
};
struct tegra_smmu_swgroup {
+ const char *name;
unsigned int swgroup;
unsigned int reg;
};
@@ -71,6 +72,7 @@ struct tegra_smmu;
struct tegra_smmu *tegra_smmu_probe(struct device *dev,
const struct tegra_smmu_soc *soc,
struct tegra_mc *mc);
+void tegra_smmu_remove(struct tegra_smmu *smmu);
#else
static inline struct tegra_smmu *
tegra_smmu_probe(struct device *dev, const struct tegra_smmu_soc *soc,
@@ -78,6 +80,10 @@ tegra_smmu_probe(struct device *dev, const struct tegra_smmu_soc *soc,
{
return NULL;
}
+
+static inline void tegra_smmu_remove(struct tegra_smmu *smmu)
+{
+}
#endif
struct tegra_mc_soc {