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 * @bus_clk_rate: bus clock rate in Hz 30 */ 31 struct qcom_icc_provider { 32 struct icc_provider provider; 33 int num_clks; 34 enum qcom_icc_type type; 35 struct regmap *regmap; 36 unsigned int qos_offset; 37 u64 *bus_clk_rate; 38 struct clk_bulk_data bus_clks[]; 39 }; 40 41 /** 42 * struct qcom_icc_qos - Qualcomm specific interconnect QoS parameters 43 * @areq_prio: node requests priority 44 * @prio_level: priority level for bus communication 45 * @limit_commands: activate/deactivate limiter mode during runtime 46 * @ap_owned: indicates if the node is owned by the AP or by the RPM 47 * @qos_mode: default qos mode for this node 48 * @qos_port: qos port number for finding qos registers of this node 49 * @urg_fwd_en: enable urgent forwarding 50 */ 51 struct qcom_icc_qos { 52 u32 areq_prio; 53 u32 prio_level; 54 bool limit_commands; 55 bool ap_owned; 56 int qos_mode; 57 int qos_port; 58 bool urg_fwd_en; 59 }; 60 61 /** 62 * struct qcom_icc_node - Qualcomm specific interconnect nodes 63 * @name: the node name used in debugfs 64 * @id: a unique node identifier 65 * @links: an array of nodes where we can go next while traversing 66 * @num_links: the total number of @links 67 * @buswidth: width of the interconnect between a node and the bus (bytes) 68 * @mas_rpm_id: RPM id for devices that are bus masters 69 * @slv_rpm_id: RPM id for devices that are bus slaves 70 * @qos: NoC QoS setting parameters 71 */ 72 struct qcom_icc_node { 73 unsigned char *name; 74 u16 id; 75 const u16 *links; 76 u16 num_links; 77 u16 buswidth; 78 int mas_rpm_id; 79 int slv_rpm_id; 80 struct qcom_icc_qos qos; 81 }; 82 83 struct qcom_icc_desc { 84 struct qcom_icc_node * const *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