| Lokesh Vutla | 41a3d4f2 | 2019-06-07 19:25:57 +0530 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | /* |
| 3 | * Texas Instruments TI-SCI Processor Controller Helper Functions |
| 4 | * |
| 5 | * Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/ |
| 6 | * Lokesh Vutla <lokeshvutla@ti.com> |
| 7 | * Suman Anna <s-anna@ti.com> |
| 8 | */ |
| 9 | |
| 10 | #ifndef REMOTEPROC_TI_SCI_PROC_H |
| 11 | #define REMOTEPROC_TI_SCI_PROC_H |
| 12 | |
| 13 | #define TISCI_INVALID_HOST 0xff |
| 14 | |
| 15 | /** |
| 16 | * struct ti_sci_proc - structure representing a processor control client |
| 17 | * @sci: cached TI-SCI protocol handle |
| 18 | * @ops: cached TI-SCI proc ops |
| 19 | * @proc_id: processor id for the consumer remoteproc device |
| 20 | * @host_id: host id to pass the control over for this consumer remoteproc |
| 21 | * device |
| 22 | */ |
| 23 | struct ti_sci_proc { |
| 24 | const struct ti_sci_handle *sci; |
| 25 | const struct ti_sci_proc_ops *ops; |
| 26 | u8 proc_id; |
| 27 | u8 host_id; |
| 28 | }; |
| 29 | |
| 30 | static inline int ti_sci_proc_request(struct ti_sci_proc *tsp) |
| 31 | { |
| 32 | int ret; |
| 33 | |
| 34 | debug("%s: proc_id = %d\n", __func__, tsp->proc_id); |
| 35 | |
| 36 | ret = tsp->ops->proc_request(tsp->sci, tsp->proc_id); |
| 37 | if (ret) |
| 38 | pr_err("ti-sci processor request failed: %d\n", ret); |
| 39 | return ret; |
| 40 | } |
| 41 | |
| 42 | static inline int ti_sci_proc_release(struct ti_sci_proc *tsp) |
| 43 | { |
| 44 | int ret; |
| 45 | |
| 46 | debug("%s: proc_id = %d\n", __func__, tsp->proc_id); |
| 47 | |
| 48 | if (tsp->host_id != TISCI_INVALID_HOST) |
| 49 | ret = tsp->ops->proc_handover(tsp->sci, tsp->proc_id, |
| 50 | tsp->host_id); |
| 51 | else |
| 52 | ret = tsp->ops->proc_release(tsp->sci, tsp->proc_id); |
| 53 | |
| 54 | if (ret) |
| 55 | pr_err("ti-sci processor release failed: %d\n", ret); |
| 56 | return ret; |
| 57 | } |
| 58 | |
| 59 | static inline int ti_sci_proc_handover(struct ti_sci_proc *tsp) |
| 60 | { |
| 61 | int ret; |
| 62 | |
| 63 | debug("%s: proc_id = %d\n", __func__, tsp->proc_id); |
| 64 | |
| 65 | ret = tsp->ops->proc_handover(tsp->sci, tsp->proc_id, tsp->host_id); |
| 66 | if (ret) |
| 67 | pr_err("ti-sci processor handover of %d to %d failed: %d\n", |
| 68 | tsp->proc_id, tsp->host_id, ret); |
| 69 | return ret; |
| 70 | } |
| 71 | |
| 72 | static inline int ti_sci_proc_get_status(struct ti_sci_proc *tsp, |
| 73 | u64 *boot_vector, u32 *cfg_flags, |
| 74 | u32 *ctrl_flags, u32 *status_flags) |
| 75 | { |
| 76 | int ret; |
| 77 | |
| 78 | ret = tsp->ops->get_proc_boot_status(tsp->sci, tsp->proc_id, |
| 79 | boot_vector, cfg_flags, ctrl_flags, |
| 80 | status_flags); |
| 81 | if (ret) |
| 82 | pr_err("ti-sci processor get_status failed: %d\n", ret); |
| 83 | |
| 84 | debug("%s: proc_id = %d, boot_vector = 0x%llx, cfg_flags = 0x%x, ctrl_flags = 0x%x, sts = 0x%x\n", |
| 85 | __func__, tsp->proc_id, *boot_vector, *cfg_flags, *ctrl_flags, |
| 86 | *status_flags); |
| 87 | return ret; |
| 88 | } |
| 89 | |
| 90 | static inline int ti_sci_proc_set_config(struct ti_sci_proc *tsp, |
| 91 | u64 boot_vector, |
| 92 | u32 cfg_set, u32 cfg_clr) |
| 93 | { |
| 94 | int ret; |
| 95 | |
| 96 | debug("%s: proc_id = %d, boot_vector = 0x%llx, cfg_set = 0x%x, cfg_clr = 0x%x\n", |
| 97 | __func__, tsp->proc_id, boot_vector, cfg_set, cfg_clr); |
| 98 | |
| 99 | ret = tsp->ops->set_proc_boot_cfg(tsp->sci, tsp->proc_id, boot_vector, |
| 100 | cfg_set, cfg_clr); |
| 101 | if (ret) |
| 102 | pr_err("ti-sci processor set_config failed: %d\n", ret); |
| 103 | return ret; |
| 104 | } |
| 105 | |
| 106 | static inline int ti_sci_proc_set_control(struct ti_sci_proc *tsp, |
| 107 | u32 ctrl_set, u32 ctrl_clr) |
| 108 | { |
| 109 | int ret; |
| 110 | |
| 111 | debug("%s: proc_id = %d, ctrl_set = 0x%x, ctrl_clr = 0x%x\n", __func__, |
| 112 | tsp->proc_id, ctrl_set, ctrl_clr); |
| 113 | |
| 114 | ret = tsp->ops->set_proc_boot_ctrl(tsp->sci, tsp->proc_id, ctrl_set, |
| 115 | ctrl_clr); |
| 116 | if (ret) |
| 117 | pr_err("ti-sci processor set_control failed: %d\n", ret); |
| 118 | return ret; |
| 119 | } |
| 120 | |
| 121 | #endif /* REMOTEPROC_TI_SCI_PROC_H */ |