Merge tag 'tegra-for-6.5-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/drivers

memory: tegra: Changes for v6.5-rc1

This introduces an interconnect provider for the memory controller and
external memory controller found on Tegra234 chips that will eventually
be used to dynamically scale the EMC frequency based on a device's
bandwidth needs.

* tag 'tegra-for-6.5-memory' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  memory: tegra: Make CPU cluster BW request a multiple of MC channels
  memory: tegra: Add software memory clients in Tegra234
  memory: tegra: Add memory clients for Tegra234
  memory: tegra: Add interconnect support for DRAM scaling in Tegra234
  dt-bindings: tegra: Add ICC IDs for dummy memory clients
  dt-bindings: tegra: Document compatible for IGX

Link: https://lore.kernel.org/r/20230609193620.2275240-4-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

3 files changed, 78 insertions, 0 deletions

diff --git a/include/dt-bindings/memory/tegra234-mc.h b/include/dt-bindings/memory/tegra234-mc.h
index 347e55e89a2a..6e60d55491b3 100644
--- a/include/dt-bindings/memory/tegra234-mc.h
+++ b/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
diff --git a/include/linux/tegra-icc.h b/include/linux/tegra-icc.h
new file mode 100644
index 000000000000..4b4d4bee290c
--- /dev/null
+++ b/include/linux/tegra-icc.h
@@ -0,0 +1,65 @@
+/* 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 */
diff --git a/include/soc/tegra/mc.h b/include/soc/tegra/mc.h
index 51a2263e1bc5..fc3001483e62 100644
--- a/include/soc/tegra/mc.h
+++ b/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;