Merge branch 'for-6.5/memory' into for-6.5/pci

Documentation/devicetree/bindings/arm/tegra.yaml

@@ -167,6 +167,11 @@ properties:
           - const: nvidia,p3737-0000+p3701-0000
           - const: nvidia,p3701-0000
           - const: nvidia,tegra234
+      - description: NVIDIA IGX Orin Development Kit
+        items:
+          - const: nvidia,p3740-0002+p3701-0008
+          - const: nvidia,p3701-0008
+          - const: nvidia,tegra234
       - description: Jetson Orin NX
         items:
           - const: nvidia,p3767-0000

drivers/memory/tegra/mc.c

@@ -15,6 +15,7 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/sort.h>
+#include <linux/tegra-icc.h>
 
 #include <soc/tegra/fuse.h>
 
@@ -792,6 +793,8 @@ static int tegra_mc_interconnect_setup(struct tegra_mc *mc)
 	mc->provider.data = &mc->provider;
 	mc->provider.set = mc->soc->icc_ops->set;
 	mc->provider.aggregate = mc->soc->icc_ops->aggregate;
+	mc->provider.get_bw = mc->soc->icc_ops->get_bw;
+	mc->provider.xlate = mc->soc->icc_ops->xlate;
 	mc->provider.xlate_extended = mc->soc->icc_ops->xlate_extended;
 
 	icc_provider_init(&mc->provider);
@@ -824,6 +827,8 @@ static int tegra_mc_interconnect_setup(struct tegra_mc *mc)
 		err = icc_link_create(node, TEGRA_ICC_MC);
 		if (err)
 			goto remove_nodes;
+
+		node->data = (struct tegra_mc_client *)&(mc->soc->clients[i]);
 	}
 
 	err = icc_provider_register(&mc->provider);
@@ -838,6 +843,23 @@ static int tegra_mc_interconnect_setup(struct tegra_mc *mc)
 	return err;
 }
 
+static void tegra_mc_num_channel_enabled(struct tegra_mc *mc)
+{
+	unsigned int i;
+	u32 value;
+
+	value = mc_ch_readl(mc, 0, MC_EMEM_ADR_CFG_CHANNEL_ENABLE);
+	if (value <= 0) {
+		mc->num_channels = mc->soc->num_channels;
+		return;
+	}
+
+	for (i = 0; i < 32; i++) {
+		if (value & BIT(i))
+			mc->num_channels++;
+	}
+}
+
 static int tegra_mc_probe(struct platform_device *pdev)
 {
 	struct tegra_mc *mc;
@@ -876,6 +898,8 @@ static int tegra_mc_probe(struct platform_device *pdev)
 			return err;
 	}
 
+	tegra_mc_num_channel_enabled(mc);
+
 	if (mc->soc->ops && mc->soc->ops->handle_irq) {
 		mc->irq = platform_get_irq(pdev, 0);
 		if (mc->irq < 0)

drivers/memory/tegra/mc.h

@@ -53,6 +53,7 @@
 #define MC_ERR_ROUTE_SANITY_ADR				0x9c4
 #define MC_ERR_GENERALIZED_CARVEOUT_STATUS		0xc00
 #define MC_ERR_GENERALIZED_CARVEOUT_ADR			0xc04
+#define MC_EMEM_ADR_CFG_CHANNEL_ENABLE			0xdf8
 #define MC_GLOBAL_INTSTATUS				0xf24
 #define MC_ERR_ADR_HI					0x11fc
 

drivers/memory/tegra/tegra186-emc.c

@@ -7,9 +7,11 @@
 #include <linux/debugfs.h>
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
+#include <linux/of_platform.h>
 #include <linux/platform_device.h>
 
 #include <soc/tegra/bpmp.h>
+#include "mc.h"
 
 struct tegra186_emc_dvfs {
 	unsigned long latency;
@@ -29,8 +31,15 @@ struct tegra186_emc {
 		unsigned long min_rate;
 		unsigned long max_rate;
 	} debugfs;
+
+	struct icc_provider provider;
 };
 
+static inline struct tegra186_emc *to_tegra186_emc(struct icc_provider *provider)
+{
+	return container_of(provider, struct tegra186_emc, provider);
+}
+
 /*
  * debugfs interface
  *
@@ -146,8 +155,102 @@ DEFINE_DEBUGFS_ATTRIBUTE(tegra186_emc_debug_max_rate_fops,
 			  tegra186_emc_debug_max_rate_get,
 			  tegra186_emc_debug_max_rate_set, "%llu\n");
 
+/*
+ * tegra_emc_icc_set_bw() - Set BW api for EMC provider
+ * @src: ICC node for External Memory Controller (EMC)
+ * @dst: ICC node for External Memory (DRAM)
+ *
+ * Do nothing here as info to BPMP-FW is now passed in the BW set function
+ * of the MC driver. BPMP-FW sets the final Freq based on the passed values.
+ */
+static int tegra_emc_icc_set_bw(struct icc_node *src, struct icc_node *dst)
+{
+	return 0;
+}
+
+static struct icc_node *
+tegra_emc_of_icc_xlate(struct of_phandle_args *spec, void *data)
+{
+	struct icc_provider *provider = data;
+	struct icc_node *node;
+
+	/* External Memory is the only possible ICC route */
+	list_for_each_entry(node, &provider->nodes, node_list) {
+		if (node->id != TEGRA_ICC_EMEM)
+			continue;
+
+		return node;
+	}
+
+	return ERR_PTR(-EPROBE_DEFER);
+}
+
+static int tegra_emc_icc_get_init_bw(struct icc_node *node, u32 *avg, u32 *peak)
+{
+	*avg = 0;
+	*peak = 0;
+
+	return 0;
+}
+
+static int tegra_emc_interconnect_init(struct tegra186_emc *emc)
+{
+	struct tegra_mc *mc = dev_get_drvdata(emc->dev->parent);
+	const struct tegra_mc_soc *soc = mc->soc;
+	struct icc_node *node;
+	int err;
+
+	emc->provider.dev = emc->dev;
+	emc->provider.set = tegra_emc_icc_set_bw;
+	emc->provider.data = &emc->provider;
+	emc->provider.aggregate = soc->icc_ops->aggregate;
+	emc->provider.xlate = tegra_emc_of_icc_xlate;
+	emc->provider.get_bw = tegra_emc_icc_get_init_bw;
+
+	icc_provider_init(&emc->provider);
+
+	/* create External Memory Controller node */
+	node = icc_node_create(TEGRA_ICC_EMC);
+	if (IS_ERR(node)) {
+		err = PTR_ERR(node);
+		goto err_msg;
+	}
+
+	node->name = "External Memory Controller";
+	icc_node_add(node, &emc->provider);
+
+	/* link External Memory Controller to External Memory (DRAM) */
+	err = icc_link_create(node, TEGRA_ICC_EMEM);
+	if (err)
+		goto remove_nodes;
+
+	/* create External Memory node */
+	node = icc_node_create(TEGRA_ICC_EMEM);
+	if (IS_ERR(node)) {
+		err = PTR_ERR(node);
+		goto remove_nodes;
+	}
+
+	node->name = "External Memory (DRAM)";
+	icc_node_add(node, &emc->provider);
+
+	err = icc_provider_register(&emc->provider);
+	if (err)
+		goto remove_nodes;
+
+	return 0;
+
+remove_nodes:
+	icc_nodes_remove(&emc->provider);
+err_msg:
+	dev_err(emc->dev, "failed to initialize ICC: %d\n", err);
+
+	return err;
+}
+
 static int tegra186_emc_probe(struct platform_device *pdev)
 {
+	struct tegra_mc *mc = dev_get_drvdata(pdev->dev.parent);
 	struct mrq_emc_dvfs_latency_response response;
 	struct tegra_bpmp_message msg;
 	struct tegra186_emc *emc;
@@ -236,6 +339,32 @@ static int tegra186_emc_probe(struct platform_device *pdev)
 	debugfs_create_file("max_rate", S_IRUGO | S_IWUSR, emc->debugfs.root,
 			    emc, &tegra186_emc_debug_max_rate_fops);
 
+	if (mc && mc->soc->icc_ops) {
+		if (tegra_bpmp_mrq_is_supported(emc->bpmp, MRQ_BWMGR_INT)) {
+			mc->bwmgr_mrq_supported = true;
+
+			/*
+			 * MC driver probe can't get BPMP reference as it gets probed
+			 * earlier than BPMP. So, save the BPMP ref got from the EMC
+			 * DT node in the mc->bpmp and use it in MC's icc_set hook.
+			 */
+			mc->bpmp = emc->bpmp;
+			barrier();
+		}
+
+		/*
+		 * Initialize the ICC even if BPMP-FW doesn't support 'MRQ_BWMGR_INT'.
+		 * Use the flag 'mc->bwmgr_mrq_supported' within MC driver and return
+		 * EINVAL instead of passing the request to BPMP-FW later when the BW
+		 * request is made by client with 'icc_set_bw()' call.
+		 */
+		err = tegra_emc_interconnect_init(emc);
+		if (err) {
+			mc->bpmp = NULL;
+			goto put_bpmp;
+		}
+	}
+
 	return 0;
 
 put_bpmp:
@@ -245,9 +374,12 @@ static int tegra186_emc_probe(struct platform_device *pdev)
 
 static int tegra186_emc_remove(struct platform_device *pdev)
 {
+	struct tegra_mc *mc = dev_get_drvdata(pdev->dev.parent);
 	struct tegra186_emc *emc = platform_get_drvdata(pdev);
 
 	debugfs_remove_recursive(emc->debugfs.root);
+
+	mc->bpmp = NULL;
 	tegra_bpmp_put(emc->bpmp);
 
 	return 0;
@@ -272,6 +404,7 @@ static struct platform_driver tegra186_emc_driver = {
 		.name = "tegra186-emc",
 		.of_match_table = tegra186_emc_of_match,
 		.suppress_bind_attrs = true,
+		.sync_state = icc_sync_state,
 	},
 	.probe = tegra186_emc_probe,
 	.remove = tegra186_emc_remove,

drivers/memory/tegra/tegra234.c

 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (C) 2021-2022, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (C) 2022-2023, NVIDIA CORPORATION.  All rights reserved.
  */
 
 #include <soc/tegra/mc.h>
 
 #include <dt-bindings/memory/tegra234-mc.h>
+#include <linux/interconnect.h>
+#include <linux/tegra-icc.h>
 
+#include <soc/tegra/bpmp.h>
 #include "mc.h"
 
 static const struct tegra_mc_client tegra234_mc_clients[] = {
 	{
+		.id = TEGRA234_MEMORY_CLIENT_HDAR,
+		.name = "hdar",
+		.bpmp_id = TEGRA_ICC_BPMP_HDA,
+		.type = TEGRA_ICC_ISO_AUDIO,
+		.sid = TEGRA234_SID_HDA,
+		.regs = {
+			.sid = {
+				.override = 0xa8,
+				.security = 0xac,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_HDAW,
+		.name = "hdaw",
+		.bpmp_id = TEGRA_ICC_BPMP_HDA,
+		.type = TEGRA_ICC_ISO_AUDIO,
+		.sid = TEGRA234_SID_HDA,
+		.regs = {
+			.sid = {
+				.override = 0x1a8,
+				.security = 0x1ac,
+			},
+		},
+	}, {
 		.id = TEGRA234_MEMORY_CLIENT_MGBEARD,
 		.name = "mgbeard",
+		.bpmp_id = TEGRA_ICC_BPMP_EQOS,
+		.type = TEGRA_ICC_NISO,
 		.sid = TEGRA234_SID_MGBE,
 		.regs = {
 			.sid = {
@@ -23,6 +52,8 @@ static const struct tegra_mc_client tegra234_mc_clients[] = {
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_MGBEBRD,
 		.name = "mgbebrd",
+		.bpmp_id = TEGRA_ICC_BPMP_EQOS,
+		.type = TEGRA_ICC_NISO,
 		.sid = TEGRA234_SID_MGBE_VF1,
 		.regs = {
 			.sid = {
@@ -33,6 +64,8 @@ static const struct tegra_mc_client tegra234_mc_clients[] = {
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_MGBECRD,
 		.name = "mgbecrd",
+		.bpmp_id = TEGRA_ICC_BPMP_EQOS,
+		.type = TEGRA_ICC_NISO,
 		.sid = TEGRA234_SID_MGBE_VF2,
 		.regs = {
 			.sid = {
@@ -43,6 +76,8 @@ static const struct tegra_mc_client tegra234_mc_clients[] = {
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_MGBEDRD,
 		.name = "mgbedrd",
+		.bpmp_id = TEGRA_ICC_BPMP_EQOS,
+		.type = TEGRA_ICC_NISO,
 		.sid = TEGRA234_SID_MGBE_VF3,
 		.regs = {
 			.sid = {
@@ -52,6 +87,8 @@ static const struct tegra_mc_client tegra234_mc_clients[] = {
 		},
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_MGBEAWR,
+		.bpmp_id = TEGRA_ICC_BPMP_EQOS,
+		.type = TEGRA_ICC_NISO,
 		.name = "mgbeawr",
 		.sid = TEGRA234_SID_MGBE,
 		.regs = {
@@ -63,6 +100,8 @@ static const struct tegra_mc_client tegra234_mc_clients[] = {
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_MGBEBWR,
 		.name = "mgbebwr",
+		.bpmp_id = TEGRA_ICC_BPMP_EQOS,
+		.type = TEGRA_ICC_NISO,
 		.sid = TEGRA234_SID_MGBE_VF1,
 		.regs = {
 			.sid = {
@@ -73,6 +112,8 @@ static const struct tegra_mc_client tegra234_mc_clients[] = {
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_MGBECWR,
 		.name = "mgbecwr",
+		.bpmp_id = TEGRA_ICC_BPMP_EQOS,
+		.type = TEGRA_ICC_NISO,
 		.sid = TEGRA234_SID_MGBE_VF2,
 		.regs = {
 			.sid = {
@@ -83,6 +124,8 @@ static const struct tegra_mc_client tegra234_mc_clients[] = {
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_SDMMCRAB,
 		.name = "sdmmcrab",
+		.bpmp_id = TEGRA_ICC_BPMP_SDMMC_4,
+		.type = TEGRA_ICC_NISO,
 		.sid = TEGRA234_SID_SDMMC4,
 		.regs = {
 			.sid = {
@@ -93,6 +136,8 @@ static const struct tegra_mc_client tegra234_mc_clients[] = {
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_MGBEDWR,
 		.name = "mgbedwr",
+		.bpmp_id = TEGRA_ICC_BPMP_EQOS,
+		.type = TEGRA_ICC_NISO,
 		.sid = TEGRA234_SID_MGBE_VF3,
 		.regs = {
 			.sid = {
@@ -103,6 +148,8 @@ static const struct tegra_mc_client tegra234_mc_clients[] = {
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_SDMMCWAB,
 		.name = "sdmmcwab",
+		.bpmp_id = TEGRA_ICC_BPMP_SDMMC_4,
+		.type = TEGRA_ICC_NISO,
 		.sid = TEGRA234_SID_SDMMC4,
 		.regs = {
 			.sid = {
@@ -110,6 +157,90 @@ static const struct tegra_mc_client tegra234_mc_clients[] = {
 				.security = 0x33c,
 			},
 		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_VI2W,
+		.name = "vi2w",
+		.bpmp_id = TEGRA_ICC_BPMP_VI2,
+		.type = TEGRA_ICC_ISO_VI,
+		.sid = TEGRA234_SID_ISO_VI2,
+		.regs = {
+			.sid = {
+				.override = 0x380,
+				.security = 0x384,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_VI2FALR,
+		.name = "vi2falr",
+		.bpmp_id = TEGRA_ICC_BPMP_VI2FAL,
+		.type = TEGRA_ICC_ISO_VIFAL,
+		.sid = TEGRA234_SID_ISO_VI2FALC,
+		.regs = {
+			.sid = {
+				.override = 0x388,
+				.security = 0x38c,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_VI2FALW,
+		.name = "vi2falw",
+		.bpmp_id = TEGRA_ICC_BPMP_VI2FAL,
+		.type = TEGRA_ICC_ISO_VIFAL,
+		.sid = TEGRA234_SID_ISO_VI2FALC,
+		.regs = {
+			.sid = {
+				.override = 0x3e0,
+				.security = 0x3e4,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_APER,
+		.name = "aper",
+		.bpmp_id = TEGRA_ICC_BPMP_APE,
+		.type = TEGRA_ICC_ISO_AUDIO,
+		.sid = TEGRA234_SID_APE,
+		.regs = {
+			.sid = {
+				.override = 0x3d0,
+				.security = 0x3d4,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_APEW,
+		.name = "apew",
+		.bpmp_id = TEGRA_ICC_BPMP_APE,
+		.type = TEGRA_ICC_ISO_AUDIO,
+		.sid = TEGRA234_SID_APE,
+		.regs = {
+			.sid = {
+				.override = 0x3d8,
+				.security = 0x3dc,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_NVDISPLAYR,
+		.name = "nvdisplayr",
+		.bpmp_id = TEGRA_ICC_BPMP_DISPLAY,
+		.type = TEGRA_ICC_ISO_DISPLAY,
+		.sid = TEGRA234_SID_ISO_NVDISPLAY,
+		.regs = {
+			.sid = {
+				.override = 0x490,
+				.security = 0x494,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_NVDISPLAYR1,
+		.name = "nvdisplayr1",
+		.bpmp_id = TEGRA_ICC_BPMP_DISPLAY,
+		.type = TEGRA_ICC_ISO_DISPLAY,
+		.sid = TEGRA234_SID_ISO_NVDISPLAY,
+		.regs = {
+			.sid = {
+				.override = 0x508,
+				.security = 0x50c,
+			},
+		},
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_BPMPR,
 		.name = "bpmpr",
@@ -153,6 +284,8 @@ static const struct tegra_mc_client tegra234_mc_clients[] = {
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_APEDMAR,
 		.name = "apedmar",
+		.bpmp_id = TEGRA_ICC_BPMP_APEDMA,
+		.type = TEGRA_ICC_ISO_AUDIO,
 		.sid = TEGRA234_SID_APE,
 		.regs = {
 			.sid = {
@@ -163,6 +296,8 @@ static const struct tegra_mc_client tegra234_mc_clients[] = {
 	}, {
 		.id = TEGRA234_MEMORY_CLIENT_APEDMAW,
 		.name = "apedmaw",
+		.bpmp_id = TEGRA_ICC_BPMP_APEDMA,
+		.type = TEGRA_ICC_ISO_AUDIO,
 		.sid = TEGRA234_SID_APE,
 		.regs = {
 			.sid = {
@@ -330,7 +465,464 @@ static const struct tegra_mc_client tegra234_mc_clients[] = {
 				.security = 0x37c,
 			},
 		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE0R,
+		.name = "pcie0r",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_0,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE0,
+		.regs = {
+			.sid = {
+				.override = 0x6c0,
+				.security = 0x6c4,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE0W,
+		.name = "pcie0w",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_0,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE0,
+		.regs = {
+			.sid = {
+				.override = 0x6c8,
+				.security = 0x6cc,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE1R,
+		.name = "pcie1r",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_1,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE1,
+		.regs = {
+			.sid = {
+				.override = 0x6d0,
+				.security = 0x6d4,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE1W,
+		.name = "pcie1w",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_1,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE1,
+		.regs = {
+			.sid = {
+				.override = 0x6d8,
+				.security = 0x6dc,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE2AR,
+		.name = "pcie2ar",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_2,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE2,
+		.regs = {
+			.sid = {
+				.override = 0x6e0,
+				.security = 0x6e4,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE2AW,
+		.name = "pcie2aw",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_2,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE2,
+		.regs = {
+			.sid = {
+				.override = 0x6e8,
+				.security = 0x6ec,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE3R,
+		.name = "pcie3r",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_3,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE3,
+		.regs = {
+			.sid = {
+				.override = 0x6f0,
+				.security = 0x6f4,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE3W,
+		.name = "pcie3w",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_3,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE3,
+		.regs = {
+			.sid = {
+				.override = 0x6f8,
+				.security = 0x6fc,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE4R,
+		.name = "pcie4r",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_4,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE4,
+		.regs = {
+			.sid = {
+				.override = 0x700,
+				.security = 0x704,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE4W,
+		.name = "pcie4w",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_4,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE4,
+		.regs = {
+			.sid = {
+				.override = 0x708,
+				.security = 0x70c,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE5R,
+		.name = "pcie5r",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_5,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE5,
+		.regs = {
+			.sid = {
+				.override = 0x710,
+				.security = 0x714,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE5W,
+		.name = "pcie5w",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_5,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE5,
+		.regs = {
+			.sid = {
+				.override = 0x718,
+				.security = 0x71c,
 			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE5R1,
+		.name = "pcie5r1",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_5,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE5,
+		.regs = {
+			.sid = {
+				.override = 0x778,
+				.security = 0x77c,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE6AR,
+		.name = "pcie6ar",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_6,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE6,
+		.regs = {
+			.sid = {
+				.override = 0x140,
+				.security = 0x144,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE6AW,
+		.name = "pcie6aw",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_6,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE6,
+		.regs = {
+			.sid = {
+				.override = 0x148,
+				.security = 0x14c,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE6AR1,
+		.name = "pcie6ar1",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_6,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE6,
+		.regs = {
+			.sid = {
+				.override = 0x1e8,
+				.security = 0x1ec,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE7AR,
+		.name = "pcie7ar",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_7,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE7,
+		.regs = {
+			.sid = {
+				.override = 0x150,
+				.security = 0x154,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE7AW,
+		.name = "pcie7aw",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_7,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE7,
+		.regs = {
+			.sid = {
+				.override = 0x180,
+				.security = 0x184,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE7AR1,
+		.name = "pcie7ar1",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_7,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE7,
+		.regs = {
+			.sid = {
+				.override = 0x248,
+				.security = 0x24c,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE8AR,
+		.name = "pcie8ar",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_8,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE8,
+		.regs = {
+			.sid = {
+				.override = 0x190,
+				.security = 0x194,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE8AW,
+		.name = "pcie8aw",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_8,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE8,
+		.regs = {
+			.sid = {
+				.override = 0x1d8,
+				.security = 0x1dc,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE9AR,
+		.name = "pcie9ar",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_9,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE9,
+		.regs = {
+			.sid = {
+				.override = 0x1e0,
+				.security = 0x1e4,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE9AW,
+		.name = "pcie9aw",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_9,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE9,
+		.regs = {
+			.sid = {
+				.override = 0x1f0,
+				.security = 0x1f4,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE10AR,
+		.name = "pcie10ar",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_10,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE10,
+		.regs = {
+			.sid = {
+				.override = 0x1f8,
+				.security = 0x1fc,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE10AW,
+		.name = "pcie10aw",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_10,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE10,
+		.regs = {
+			.sid = {
+				.override = 0x200,
+				.security = 0x204,
+			},
+		},
+	}, {
+		.id = TEGRA234_MEMORY_CLIENT_PCIE10AR1,
+		.name = "pcie10ar1",
+		.bpmp_id = TEGRA_ICC_BPMP_PCIE_10,
+		.type = TEGRA_ICC_NISO,
+		.sid = TEGRA234_SID_PCIE10,
+		.regs = {
+			.sid = {
+				.override = 0x240,
+				.security = 0x244,
+			},
+		},
+	}, {
+		.id = TEGRA_ICC_MC_CPU_CLUSTER0,
+		.name = "sw_cluster0",
+		.bpmp_id = TEGRA_ICC_BPMP_CPU_CLUSTER0,
+		.type = TEGRA_ICC_NISO,
+	}, {
+		.id = TEGRA_ICC_MC_CPU_CLUSTER1,
+		.name = "sw_cluster1",
+		.bpmp_id = TEGRA_ICC_BPMP_CPU_CLUSTER1,
+		.type = TEGRA_ICC_NISO,
+	}, {
+		.id = TEGRA_ICC_MC_CPU_CLUSTER2,
+		.name = "sw_cluster2",
+		.bpmp_id = TEGRA_ICC_BPMP_CPU_CLUSTER2,
+		.type = TEGRA_ICC_NISO,
+	},
+};
+
+/*
+ * tegra234_mc_icc_set() - Pass MC client info to the BPMP-FW
+ * @src: ICC node for Memory Controller's (MC) Client
+ * @dst: ICC node for Memory Controller (MC)
+ *
+ * Passing the current request info from the MC to the BPMP-FW where
+ * LA and PTSA registers are accessed and the final EMC freq is set
+ * based on client_id, type, latency and bandwidth.
+ * icc_set_bw() makes set_bw calls for both MC and EMC providers in
+ * sequence. Both the calls are protected by 'mutex_lock(&icc_lock)'.
+ * So, the data passed won't be updated by concurrent set calls from
+ * other clients.
+ */
+static int tegra234_mc_icc_set(struct icc_node *src, struct icc_node *dst)
+{
+	struct tegra_mc *mc = icc_provider_to_tegra_mc(dst->provider);
+	struct mrq_bwmgr_int_request bwmgr_req = { 0 };
+	struct mrq_bwmgr_int_response bwmgr_resp = { 0 };
+	const struct tegra_mc_client *pclient = src->data;
+	struct tegra_bpmp_message msg;
+	int ret;
+
+	/*
+	 * Same Src and Dst node will happen during boot from icc_node_add().
+	 * This can be used to pre-initialize and set bandwidth for all clients
+	 * before their drivers are loaded. We are skipping this case as for us,
+	 * the pre-initialization already happened in Bootloader(MB2) and BPMP-FW.
+	 */
+	if (src->id == dst->id)
+		return 0;
+
+	if (!mc->bwmgr_mrq_supported)
+		return -EINVAL;
+
+	if (!mc->bpmp) {
+		dev_err(mc->dev, "BPMP reference NULL\n");
+		return -ENOENT;
+	}
+
+	if (pclient->type == TEGRA_ICC_NISO)
+		bwmgr_req.bwmgr_calc_set_req.niso_bw = src->avg_bw;
+	else
+		bwmgr_req.bwmgr_calc_set_req.iso_bw = src->avg_bw;
+
+	bwmgr_req.bwmgr_calc_set_req.client_id = pclient->bpmp_id;
+
+	bwmgr_req.cmd = CMD_BWMGR_INT_CALC_AND_SET;
+	bwmgr_req.bwmgr_calc_set_req.mc_floor = src->peak_bw;
+	bwmgr_req.bwmgr_calc_set_req.floor_unit = BWMGR_INT_UNIT_KBPS;
+
+	memset(&msg, 0, sizeof(msg));
+	msg.mrq = MRQ_BWMGR_INT;
+	msg.tx.data = &bwmgr_req;
+	msg.tx.size = sizeof(bwmgr_req);
+	msg.rx.data = &bwmgr_resp;
+	msg.rx.size = sizeof(bwmgr_resp);
+
+	ret = tegra_bpmp_transfer(mc->bpmp, &msg);
+	if (ret < 0) {
+		dev_err(mc->dev, "BPMP transfer failed: %d\n", ret);
+		goto error;
+	}
+	if (msg.rx.ret < 0) {
+		pr_err("failed to set bandwidth for %u: %d\n",
+		       bwmgr_req.bwmgr_calc_set_req.client_id, msg.rx.ret);
+		ret = -EINVAL;
+	}
+
+error:
+	return ret;
+}
+
+static int tegra234_mc_icc_aggregate(struct icc_node *node, u32 tag, u32 avg_bw,
+				     u32 peak_bw, u32 *agg_avg, u32 *agg_peak)
+{
+	struct icc_provider *p = node->provider;
+	struct tegra_mc *mc = icc_provider_to_tegra_mc(p);
+
+	if (!mc->bwmgr_mrq_supported)
+		return -EINVAL;
+
+	if (node->id == TEGRA_ICC_MC_CPU_CLUSTER0 ||
+	    node->id == TEGRA_ICC_MC_CPU_CLUSTER1 ||
+	    node->id == TEGRA_ICC_MC_CPU_CLUSTER2) {
+		if (mc)
+			peak_bw = peak_bw * mc->num_channels;
+	}
+
+	*agg_avg += avg_bw;
+	*agg_peak = max(*agg_peak, peak_bw);
+
+	return 0;
+}
+
+static struct icc_node*
+tegra234_mc_of_icc_xlate(struct of_phandle_args *spec, void *data)
+{
+	struct tegra_mc *mc = icc_provider_to_tegra_mc(data);
+	unsigned int cl_id = spec->args[0];
+	struct icc_node *node;
+
+	list_for_each_entry(node, &mc->provider.nodes, node_list) {
+		if (node->id != cl_id)
+			continue;
+
+		return node;
+	}
+
+	/*
+	 * If a client driver calls devm_of_icc_get() before the MC driver
+	 * is probed, then return EPROBE_DEFER to the client driver.
+	 */
+	return ERR_PTR(-EPROBE_DEFER);
+}
+
+static int tegra234_mc_icc_get_init_bw(struct icc_node *node, u32 *avg, u32 *peak)
+{
+	*avg = 0;
+	*peak = 0;
+
+	return 0;
+}
+
+static const struct tegra_mc_icc_ops tegra234_mc_icc_ops = {
+	.xlate = tegra234_mc_of_icc_xlate,
+	.aggregate = tegra234_mc_icc_aggregate,
+	.get_bw = tegra234_mc_icc_get_init_bw,
+	.set = tegra234_mc_icc_set,
 };
 
 const struct tegra_mc_soc tegra234_mc_soc = {
@@ -345,6 +937,7 @@ const struct tegra_mc_soc tegra234_mc_soc = {
 		   MC_INT_SECURITY_VIOLATION | MC_INT_DECERR_EMEM,
 	.has_addr_hi_reg = true,
 	.ops = &tegra186_mc_ops,
+	.icc_ops = &tegra234_mc_icc_ops,
 	.ch_intmask = 0x0000ff00,
 	.global_intstatus_channel_shift = 8,
 	/*

include/dt-bindings/memory/tegra234-mc.h

@@ -536,4 +536,9 @@
 #define TEGRA234_MEMORY_CLIENT_NVJPG1SRD 0x123
 #define TEGRA234_MEMORY_CLIENT_NVJPG1SWR 0x124
 
+/* ICC ID's for dummy MC clients used to represent CPU Clusters */
+#define TEGRA_ICC_MC_CPU_CLUSTER0       1003
+#define TEGRA_ICC_MC_CPU_CLUSTER1       1004
+#define TEGRA_ICC_MC_CPU_CLUSTER2       1005
+
 #endif

include/linux/tegra-icc.h

+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2022-2023 NVIDIA CORPORATION.  All rights reserved.
+ */
+
+#ifndef LINUX_TEGRA_ICC_H
+#define LINUX_TEGRA_ICC_H
+
+enum tegra_icc_client_type {
+	TEGRA_ICC_NONE,
+	TEGRA_ICC_NISO,
+	TEGRA_ICC_ISO_DISPLAY,
+	TEGRA_ICC_ISO_VI,
+	TEGRA_ICC_ISO_AUDIO,
+	TEGRA_ICC_ISO_VIFAL,
+};
+
+/* ICC ID's for MC client's used in BPMP */
+#define TEGRA_ICC_BPMP_DEBUG		1
+#define TEGRA_ICC_BPMP_CPU_CLUSTER0	2
+#define TEGRA_ICC_BPMP_CPU_CLUSTER1	3
+#define TEGRA_ICC_BPMP_CPU_CLUSTER2	4
+#define TEGRA_ICC_BPMP_GPU		5
+#define TEGRA_ICC_BPMP_CACTMON		6
+#define TEGRA_ICC_BPMP_DISPLAY		7
+#define TEGRA_ICC_BPMP_VI		8
+#define TEGRA_ICC_BPMP_EQOS		9
+#define TEGRA_ICC_BPMP_PCIE_0		10
+#define TEGRA_ICC_BPMP_PCIE_1		11
+#define TEGRA_ICC_BPMP_PCIE_2		12
+#define TEGRA_ICC_BPMP_PCIE_3		13
+#define TEGRA_ICC_BPMP_PCIE_4		14
+#define TEGRA_ICC_BPMP_PCIE_5		15
+#define TEGRA_ICC_BPMP_PCIE_6		16
+#define TEGRA_ICC_BPMP_PCIE_7		17
+#define TEGRA_ICC_BPMP_PCIE_8		18
+#define TEGRA_ICC_BPMP_PCIE_9		19
+#define TEGRA_ICC_BPMP_PCIE_10		20
+#define TEGRA_ICC_BPMP_DLA_0		21
+#define TEGRA_ICC_BPMP_DLA_1		22
+#define TEGRA_ICC_BPMP_SDMMC_1		23
+#define TEGRA_ICC_BPMP_SDMMC_2		24
+#define TEGRA_ICC_BPMP_SDMMC_3		25
+#define TEGRA_ICC_BPMP_SDMMC_4		26
+#define TEGRA_ICC_BPMP_NVDEC		27
+#define TEGRA_ICC_BPMP_NVENC		28
+#define TEGRA_ICC_BPMP_NVJPG_0		29
+#define TEGRA_ICC_BPMP_NVJPG_1		30
+#define TEGRA_ICC_BPMP_OFAA		31
+#define TEGRA_ICC_BPMP_XUSB_HOST	32
+#define TEGRA_ICC_BPMP_XUSB_DEV		33
+#define TEGRA_ICC_BPMP_TSEC		34
+#define TEGRA_ICC_BPMP_VIC		35
+#define TEGRA_ICC_BPMP_APE		36
+#define TEGRA_ICC_BPMP_APEDMA		37
+#define TEGRA_ICC_BPMP_SE		38
+#define TEGRA_ICC_BPMP_ISP		39
+#define TEGRA_ICC_BPMP_HDA		40
+#define TEGRA_ICC_BPMP_VIFAL		41
+#define TEGRA_ICC_BPMP_VI2FAL		42
+#define TEGRA_ICC_BPMP_VI2		43
+#define TEGRA_ICC_BPMP_RCE		44
+#define TEGRA_ICC_BPMP_PVA		45
+
+#endif /* LINUX_TEGRA_ICC_H */

include/soc/tegra/mc.h

@@ -13,6 +13,7 @@
 #include <linux/irq.h>
 #include <linux/reset-controller.h>
 #include <linux/types.h>
+#include <linux/tegra-icc.h>
 
 struct clk;
 struct device;
@@ -26,6 +27,8 @@ struct tegra_mc_timing {
 
 struct tegra_mc_client {
 	unsigned int id;
+	unsigned int bpmp_id;
+	enum tegra_icc_client_type type;
 	const char *name;
 	/*
 	 * For Tegra210 and earlier, this is the SWGROUP ID used for IOVA translations in the
@@ -166,8 +169,10 @@ struct tegra_mc_icc_ops {
 	int (*set)(struct icc_node *src, struct icc_node *dst);
 	int (*aggregate)(struct icc_node *node, u32 tag, u32 avg_bw,
 			 u32 peak_bw, u32 *agg_avg, u32 *agg_peak);
+	struct icc_node* (*xlate)(struct of_phandle_args *spec, void *data);
 	struct icc_node_data *(*xlate_extended)(struct of_phandle_args *spec,
 						void *data);
+	int (*get_bw)(struct icc_node *node, u32 *avg, u32 *peak);
 };
 
 struct tegra_mc_ops {
@@ -214,6 +219,7 @@ struct tegra_mc_soc {
 };
 
 struct tegra_mc {
+	struct tegra_bpmp *bpmp;
 	struct device *dev;
 	struct tegra_smmu *smmu;
 	struct gart_device *gart;
@@ -228,7 +234,9 @@ struct tegra_mc {
 
 	struct tegra_mc_timing *timings;
 	unsigned int num_timings;
+	unsigned int num_channels;
 
+	bool bwmgr_mrq_supported;
 	struct reset_controller_dev reset;
 
 	struct icc_provider provider;