1 files changed, 402 insertions, 0 deletions

diff --git a/drivers/soc/qcom/msm_bus/msm_bus_core.h b/drivers/soc/qcom/msm_bus/msm_bus_core.h
new file mode 100644
index 000000000000..c63602efeb1f
--- /dev/null
+++ b/drivers/soc/qcom/msm_bus/msm_bus_core.h
@@ -0,0 +1,402 @@
+/* Copyright (c) 2011-2014, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _ARCH_ARM_MACH_MSM_BUS_CORE_H
+#define _ARCH_ARM_MACH_MSM_BUS_CORE_H
+
+#include <linux/types.h>
+#include <linux/device.h>
+#include <linux/radix-tree.h>
+#include <linux/platform_device.h>
+#include <linux/msm-bus-board.h>
+#include <linux/msm-bus.h>
+
+#define MSM_BUS_DBG(msg, ...) \
+	pr_debug(msg, ## __VA_ARGS__)
+#define MSM_BUS_ERR(msg, ...) \
+	pr_err(msg, ## __VA_ARGS__)
+#define MSM_BUS_WARN(msg, ...) \
+	pr_warn(msg, ## __VA_ARGS__)
+#define MSM_FAB_ERR(msg, ...) \
+	dev_err(&fabric->fabdev.dev, msg, ## __VA_ARGS__)
+
+#define IS_MASTER_VALID(mas) \
+	(((mas >= MSM_BUS_MASTER_FIRST) && (mas <= MSM_BUS_MASTER_LAST)) \
+	 ? 1 : 0)
+#define IS_SLAVE_VALID(slv) \
+	(((slv >= MSM_BUS_SLAVE_FIRST) && (slv <= MSM_BUS_SLAVE_LAST)) ? 1 : 0)
+
+#define INTERLEAVED_BW(fab_pdata, bw, ports) \
+	((fab_pdata->il_flag) ? ((bw < 0) \
+	? -msm_bus_div64((ports), (-bw)) : msm_bus_div64((ports), (bw))) : (bw))
+#define INTERLEAVED_VAL(fab_pdata, n) \
+	((fab_pdata->il_flag) ? (n) : 1)
+#define KBTOB(a) (a * 1000ULL)
+
+enum msm_bus_dbg_op_type {
+	MSM_BUS_DBG_UNREGISTER = -2,
+	MSM_BUS_DBG_REGISTER,
+	MSM_BUS_DBG_OP = 1,
+};
+
+enum msm_bus_hw_sel {
+	MSM_BUS_RPM = 0,
+	MSM_BUS_NOC,
+	MSM_BUS_BIMC,
+};
+
+struct msm_bus_arb_ops {
+	uint32_t (*register_client)(struct msm_bus_scale_pdata *pdata);
+	int (*update_request)(uint32_t cl, unsigned int index);
+	void (*unregister_client)(uint32_t cl);
+	struct msm_bus_client_handle*
+		(*register_cl)(uint32_t mas, uint32_t slv, char *name,
+						bool active_only);
+	int (*update_bw)(struct msm_bus_client_handle *cl, u64 ab, u64 ib);
+	void (*unregister)(struct msm_bus_client_handle *cl);
+};
+
+enum {
+	SLAVE_NODE,
+	MASTER_NODE,
+	CLK_NODE,
+	NR_LIM_NODE,
+};
+
+
+extern struct bus_type msm_bus_type;
+extern struct msm_bus_arb_ops arb_ops;
+extern void msm_bus_arb_setops_legacy(struct msm_bus_arb_ops *arb_ops);
+
+struct msm_bus_node_info {
+	unsigned int id;
+	unsigned int priv_id;
+	unsigned int mas_hw_id;
+	unsigned int slv_hw_id;
+	int gateway;
+	int *masterp;
+	int *qport;
+	int num_mports;
+	int *slavep;
+	int num_sports;
+	int *tier;
+	int num_tiers;
+	int ahb;
+	int hw_sel;
+	const char *slaveclk[NUM_CTX];
+	const char *memclk[NUM_CTX];
+	const char *iface_clk_node;
+	unsigned int buswidth;
+	unsigned int ws;
+	unsigned int mode;
+	unsigned int perm_mode;
+	unsigned int prio_lvl;
+	unsigned int prio_rd;
+	unsigned int prio_wr;
+	unsigned int prio1;
+	unsigned int prio0;
+	unsigned int num_thresh;
+	u64 *th;
+	u64 cur_lim_bw;
+	unsigned int mode_thresh;
+	bool dual_conf;
+	u64 *bimc_bw;
+	bool nr_lim;
+	u32 ff;
+	bool rt_mas;
+	u32 bimc_gp;
+	u32 bimc_thmp;
+	u64 floor_bw;
+	const char *name;
+};
+
+struct path_node {
+	uint64_t clk[NUM_CTX];
+	uint64_t bw[NUM_CTX];
+	uint64_t *sel_clk;
+	uint64_t *sel_bw;
+	int next;
+};
+
+struct msm_bus_link_info {
+	uint64_t clk[NUM_CTX];
+	uint64_t *sel_clk;
+	uint64_t memclk;
+	int64_t bw[NUM_CTX];
+	int64_t *sel_bw;
+	int *tier;
+	int num_tiers;
+};
+
+struct nodeclk {
+	struct clk *clk;
+	uint64_t rate;
+	bool dirty;
+	bool enable;
+};
+
+struct msm_bus_inode_info {
+	struct msm_bus_node_info *node_info;
+	uint64_t max_bw;
+	uint64_t max_clk;
+	uint64_t cur_lim_bw;
+	uint64_t cur_prg_bw;
+	struct msm_bus_link_info link_info;
+	int num_pnodes;
+	struct path_node *pnode;
+	int commit_index;
+	struct nodeclk nodeclk[NUM_CTX];
+	struct nodeclk memclk[NUM_CTX];
+	struct nodeclk iface_clk;
+	void *hw_data;
+};
+
+struct msm_bus_node_hw_info {
+	bool dirty;
+	unsigned int hw_id;
+	uint64_t bw;
+};
+
+struct msm_bus_hw_algorithm {
+	int (*allocate_commit_data)(struct msm_bus_fabric_registration
+		*fab_pdata, void **cdata, int ctx);
+	void *(*allocate_hw_data)(struct platform_device *pdev,
+		struct msm_bus_fabric_registration *fab_pdata);
+	void (*node_init)(void *hw_data, struct msm_bus_inode_info *info);
+	void (*free_commit_data)(void *cdata);
+	void (*update_bw)(struct msm_bus_inode_info *hop,
+		struct msm_bus_inode_info *info,
+		struct msm_bus_fabric_registration *fab_pdata,
+		void *sel_cdata, int *master_tiers,
+		int64_t add_bw);
+	void (*fill_cdata_buffer)(int *curr, char *buf, const int max_size,
+		void *cdata, int nmasters, int nslaves, int ntslaves);
+	int (*commit)(struct msm_bus_fabric_registration
+		*fab_pdata, void *hw_data, void **cdata);
+	int (*port_unhalt)(uint32_t haltid, uint8_t mport);
+	int (*port_halt)(uint32_t haltid, uint8_t mport);
+	void (*config_master)(struct msm_bus_fabric_registration *fab_pdata,
+		struct msm_bus_inode_info *info,
+		uint64_t req_clk, uint64_t req_bw);
+	void (*config_limiter)(struct msm_bus_fabric_registration *fab_pdata,
+		struct msm_bus_inode_info *info);
+	bool (*update_bw_reg)(int mode);
+};
+
+struct msm_bus_fabric_device {
+	int id;
+	const char *name;
+	struct device dev;
+	const struct msm_bus_fab_algorithm *algo;
+	const struct msm_bus_board_algorithm *board_algo;
+	struct msm_bus_hw_algorithm hw_algo;
+	int visited;
+	int num_nr_lim;
+	u64 nr_lim_thresh;
+	u32 eff_fact;
+};
+#define to_msm_bus_fabric_device(d) container_of(d, \
+		struct msm_bus_fabric_device, d)
+
+struct msm_bus_fabric {
+	struct msm_bus_fabric_device fabdev;
+	int ahb;
+	void *cdata[NUM_CTX];
+	bool arb_dirty;
+	bool clk_dirty;
+	struct radix_tree_root fab_tree;
+	int num_nodes;
+	struct list_head gateways;
+	struct msm_bus_inode_info info;
+	struct msm_bus_fabric_registration *pdata;
+	void *hw_data;
+};
+#define to_msm_bus_fabric(d) container_of(d, \
+	struct msm_bus_fabric, d)
+
+
+struct msm_bus_fab_algorithm {
+	int (*update_clks)(struct msm_bus_fabric_device *fabdev,
+		struct msm_bus_inode_info *pme, int index,
+		uint64_t curr_clk, uint64_t req_clk,
+		uint64_t bwsum, int flag, int ctx,
+		unsigned int cl_active_flag);
+	int (*port_halt)(struct msm_bus_fabric_device *fabdev, int portid);
+	int (*port_unhalt)(struct msm_bus_fabric_device *fabdev, int portid);
+	int (*commit)(struct msm_bus_fabric_device *fabdev);
+	struct msm_bus_inode_info *(*find_node)(struct msm_bus_fabric_device
+		*fabdev, int id);
+	struct msm_bus_inode_info *(*find_gw_node)(struct msm_bus_fabric_device
+		*fabdev, int id);
+	struct list_head *(*get_gw_list)(struct msm_bus_fabric_device *fabdev);
+	void (*update_bw)(struct msm_bus_fabric_device *fabdev, struct
+		msm_bus_inode_info * hop, struct msm_bus_inode_info *info,
+		int64_t add_bw, int *master_tiers, int ctx);
+	void (*config_master)(struct msm_bus_fabric_device *fabdev,
+		struct msm_bus_inode_info *info, uint64_t req_clk,
+		uint64_t req_bw);
+	void (*config_limiter)(struct msm_bus_fabric_device *fabdev,
+		struct msm_bus_inode_info *info);
+};
+
+struct msm_bus_board_algorithm {
+	int board_nfab;
+	void (*assign_iids)(struct msm_bus_fabric_registration *fabreg,
+		int fabid);
+	int (*get_iid)(int id);
+};
+
+/**
+ * Used to store the list of fabrics and other info to be
+ * maintained outside the fabric structure.
+ * Used while calculating path, and to find fabric ptrs
+ */
+struct msm_bus_fabnodeinfo {
+	struct list_head list;
+	struct msm_bus_inode_info *info;
+};
+
+struct msm_bus_client {
+	int id;
+	struct msm_bus_scale_pdata *pdata;
+	int *src_pnode;
+	int curr;
+};
+
+uint64_t msm_bus_div64(unsigned int width, uint64_t bw);
+int msm_bus_fabric_device_register(struct msm_bus_fabric_device *fabric);
+void msm_bus_fabric_device_unregister(struct msm_bus_fabric_device *fabric);
+struct msm_bus_fabric_device *msm_bus_get_fabric_device(int fabid);
+int msm_bus_get_num_fab(void);
+
+
+int msm_bus_hw_fab_init(struct msm_bus_fabric_registration *pdata,
+	struct msm_bus_hw_algorithm *hw_algo);
+void msm_bus_board_init(struct msm_bus_fabric_registration *pdata);
+void msm_bus_board_set_nfab(struct msm_bus_fabric_registration *pdata,
+	int nfab);
+#if defined(CONFIG_QCOM_SMD_RPM)
+int msm_bus_rpm_hw_init(struct msm_bus_fabric_registration *pdata,
+	struct msm_bus_hw_algorithm *hw_algo);
+int msm_bus_remote_hw_commit(struct msm_bus_fabric_registration
+	*fab_pdata, void *hw_data, void **cdata);
+void msm_bus_rpm_fill_cdata_buffer(int *curr, char *buf, const int max_size,
+	void *cdata, int nmasters, int nslaves, int ntslaves);
+#else
+static inline int msm_bus_rpm_hw_init(struct msm_bus_fabric_registration *pdata,
+	struct msm_bus_hw_algorithm *hw_algo)
+{
+	return 0;
+}
+static inline int msm_bus_remote_hw_commit(struct msm_bus_fabric_registration
+	*fab_pdata, void *hw_data, void **cdata)
+{
+	return 0;
+}
+static inline void msm_bus_rpm_fill_cdata_buffer(int *curr, char *buf,
+	const int max_size, void *cdata, int nmasters, int nslaves,
+	int ntslaves)
+{
+}
+#endif
+
+int msm_bus_noc_hw_init(struct msm_bus_fabric_registration *pdata,
+	struct msm_bus_hw_algorithm *hw_algo);
+int msm_bus_bimc_hw_init(struct msm_bus_fabric_registration *pdata,
+	struct msm_bus_hw_algorithm *hw_algo);
+#if defined(CONFIG_DEBUG_FS) && defined(CONFIG_MSM_BUS_SCALING)
+void msm_bus_dbg_client_data(struct msm_bus_scale_pdata *pdata, int index,
+	uint32_t cl);
+void msm_bus_dbg_commit_data(const char *fabname, void *cdata,
+	int nmasters, int nslaves, int ntslaves, int op);
+int msm_bus_dbg_add_client(const struct msm_bus_client_handle *pdata);
+int msm_bus_dbg_rec_transaction(const struct msm_bus_client_handle *pdata,
+						u64 ab, u64 ib);
+void msm_bus_dbg_remove_client(const struct msm_bus_client_handle *pdata);
+
+#else
+static inline void msm_bus_dbg_client_data(struct msm_bus_scale_pdata *pdata,
+	int index, uint32_t cl)
+{
+}
+static inline void msm_bus_dbg_commit_data(const char *fabname,
+	void *cdata, int nmasters, int nslaves, int ntslaves,
+	int op)
+{
+}
+static inline void void msm_bus_dbg_remove_client
+		(const struct msm_bus_client_handle *pdata)
+{
+}
+
+static inline int
+msm_bus_dbg_rec_transaction(const struct msm_bus_client_handle *pdata,
+						u64 ab, u64 ib)
+{
+	return 0;
+}
+
+static inline int
+msm_bus_dbg_add_client(const struct msm_bus_client_handle *pdata)
+{
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_CORESIGHT
+int msmbus_coresight_init(struct platform_device *pdev);
+void msmbus_coresight_remove(struct platform_device *pdev);
+int msmbus_coresight_init_adhoc(struct platform_device *pdev,
+		struct device_node *of_node);
+void msmbus_coresight_remove_adhoc(struct platform_device *pdev);
+#else
+static inline int msmbus_coresight_init(struct platform_device *pdev)
+{
+	return 0;
+}
+
+static inline void msmbus_coresight_remove(struct platform_device *pdev)
+{
+}
+
+static inline int msmbus_coresight_init_adhoc(struct platform_device *pdev,
+		struct device_node *of_node)
+{
+	return 0;
+}
+
+static inline void msmbus_coresight_remove_adhoc(struct platform_device *pdev)
+{
+}
+#endif
+
+
+#ifdef CONFIG_OF
+void msm_bus_of_get_nfab(struct platform_device *pdev,
+		struct msm_bus_fabric_registration *pdata);
+struct msm_bus_fabric_registration
+	*msm_bus_of_get_fab_data(struct platform_device *pdev);
+#else
+static inline void msm_bus_of_get_nfab(struct platform_device *pdev,
+		struct msm_bus_fabric_registration *pdata)
+{
+	return;
+}
+
+static inline struct msm_bus_fabric_registration
+	*msm_bus_of_get_fab_data(struct platform_device *pdev)
+{
+	return NULL;
+}
+#endif
+
+#endif /*_ARCH_ARM_MACH_MSM_BUS_CORE_H*/