1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright (C) 2020 Linaro Ltd 4 */ 5 6 #ifndef __DRIVERS_INTERCONNECT_QCOM_ICC_RPM_H 7 #define __DRIVERS_INTERCONNECT_QCOM_ICC_RPM_H 8 9 #define RPM_BUS_MASTER_REQ 0x73616d62 10 #define RPM_BUS_SLAVE_REQ 0x766c7362 11 12 #define to_qcom_provider(_provider) \ 13 container_of(_provider, struct qcom_icc_provider, provider) 14 15 enum qcom_icc_type { 16 QCOM_ICC_NOC, 17 QCOM_ICC_BIMC, 18 QCOM_ICC_QNOC, 19 }; 20 21 /** 22 * struct qcom_icc_provider - Qualcomm specific interconnect provider 23 * @provider: generic interconnect provider 24 * @bus_clks: the clk_bulk_data table of bus clocks 25 * @num_clks: the total number of clk_bulk_data entries 26 * @type: the ICC provider type 27 * @qos_offset: offset to QoS registers 28 * @regmap: regmap for QoS registers read/write access 29 */ 30 struct qcom_icc_provider { 31 struct icc_provider provider; 32 int num_clks; 33 enum qcom_icc_type type; 34 struct regmap *regmap; 35 unsigned int qos_offset; 36 struct clk_bulk_data bus_clks[]; 37 }; 38 39 /** 40 * struct qcom_icc_qos - Qualcomm specific interconnect QoS parameters 41 * @areq_prio: node requests priority 42 * @prio_level: priority level for bus communication 43 * @limit_commands: activate/deactivate limiter mode during runtime 44 * @ap_owned: indicates if the node is owned by the AP or by the RPM 45 * @qos_mode: default qos mode for this node 46 * @qos_port: qos port number for finding qos registers of this node 47 * @urg_fwd_en: enable urgent forwarding 48 */ 49 struct qcom_icc_qos { 50 u32 areq_prio; 51 u32 prio_level; 52 bool limit_commands; 53 bool ap_owned; 54 int qos_mode; 55 int qos_port; 56 bool urg_fwd_en; 57 }; 58 59 /** 60 * struct qcom_icc_node - Qualcomm specific interconnect nodes 61 * @name: the node name used in debugfs 62 * @id: a unique node identifier 63 * @links: an array of nodes where we can go next while traversing 64 * @num_links: the total number of @links 65 * @buswidth: width of the interconnect between a node and the bus (bytes) 66 * @mas_rpm_id: RPM id for devices that are bus masters 67 * @slv_rpm_id: RPM id for devices that are bus slaves 68 * @qos: NoC QoS setting parameters 69 * @rate: current bus clock rate in Hz 70 */ 71 struct qcom_icc_node { 72 unsigned char *name; 73 u16 id; 74 const u16 *links; 75 u16 num_links; 76 u16 buswidth; 77 int mas_rpm_id; 78 int slv_rpm_id; 79 struct qcom_icc_qos qos; 80 u64 rate; 81 }; 82 83 struct qcom_icc_desc { 84 struct qcom_icc_node **nodes; 85 size_t num_nodes; 86 const char * const *clocks; 87 size_t num_clocks; 88 bool has_bus_pd; 89 enum qcom_icc_type type; 90 const struct regmap_config *regmap_cfg; 91 unsigned int qos_offset; 92 }; 93 94 /* Valid for both NoC and BIMC */ 95 #define NOC_QOS_MODE_INVALID -1 96 #define NOC_QOS_MODE_FIXED 0x0 97 #define NOC_QOS_MODE_BYPASS 0x2 98 99 int qnoc_probe(struct platform_device *pdev); 100 int qnoc_remove(struct platform_device *pdev); 101 102 #endif 103