Suman Anna | cf7acb4 | 2020-07-21 17:36:14 -0500 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | /* |
| 3 | * Texas Instruments TI-SCI Processor Controller Helper Functions |
| 4 | * |
| 5 | * Copyright (C) 2018-2020 Texas Instruments Incorporated - https://www.ti.com/ |
| 6 | * Suman Anna <s-anna@ti.com> |
| 7 | */ |
| 8 | |
| 9 | #ifndef REMOTEPROC_TI_SCI_PROC_H |
| 10 | #define REMOTEPROC_TI_SCI_PROC_H |
| 11 | |
| 12 | #include <linux/soc/ti/ti_sci_protocol.h> |
| 13 | |
| 14 | /** |
| 15 | * struct ti_sci_proc - structure representing a processor control client |
| 16 | * @sci: cached TI-SCI protocol handle |
| 17 | * @ops: cached TI-SCI proc ops |
| 18 | * @dev: cached client device pointer |
| 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 | struct device *dev; |
| 27 | u8 proc_id; |
| 28 | u8 host_id; |
| 29 | }; |
| 30 | |
| 31 | static inline int ti_sci_proc_request(struct ti_sci_proc *tsp) |
| 32 | { |
| 33 | int ret; |
| 34 | |
| 35 | ret = tsp->ops->request(tsp->sci, tsp->proc_id); |
| 36 | if (ret) |
| 37 | dev_err(tsp->dev, "ti-sci processor request failed: %d\n", |
| 38 | 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 | ret = tsp->ops->release(tsp->sci, tsp->proc_id); |
| 47 | if (ret) |
| 48 | dev_err(tsp->dev, "ti-sci processor release failed: %d\n", |
| 49 | ret); |
| 50 | return ret; |
| 51 | } |
| 52 | |
| 53 | static inline int ti_sci_proc_handover(struct ti_sci_proc *tsp) |
| 54 | { |
| 55 | int ret; |
| 56 | |
| 57 | ret = tsp->ops->handover(tsp->sci, tsp->proc_id, tsp->host_id); |
| 58 | if (ret) |
| 59 | dev_err(tsp->dev, "ti-sci processor handover of %d to %d failed: %d\n", |
| 60 | tsp->proc_id, tsp->host_id, ret); |
| 61 | return ret; |
| 62 | } |
| 63 | |
| 64 | static inline int ti_sci_proc_set_config(struct ti_sci_proc *tsp, |
| 65 | u64 boot_vector, |
| 66 | u32 cfg_set, u32 cfg_clr) |
| 67 | { |
| 68 | int ret; |
| 69 | |
| 70 | ret = tsp->ops->set_config(tsp->sci, tsp->proc_id, boot_vector, |
| 71 | cfg_set, cfg_clr); |
| 72 | if (ret) |
| 73 | dev_err(tsp->dev, "ti-sci processor set_config failed: %d\n", |
| 74 | ret); |
| 75 | return ret; |
| 76 | } |
| 77 | |
| 78 | static inline int ti_sci_proc_set_control(struct ti_sci_proc *tsp, |
| 79 | u32 ctrl_set, u32 ctrl_clr) |
| 80 | { |
| 81 | int ret; |
| 82 | |
| 83 | ret = tsp->ops->set_control(tsp->sci, tsp->proc_id, ctrl_set, ctrl_clr); |
| 84 | if (ret) |
| 85 | dev_err(tsp->dev, "ti-sci processor set_control failed: %d\n", |
| 86 | ret); |
| 87 | return ret; |
| 88 | } |
| 89 | |
| 90 | static inline int ti_sci_proc_get_status(struct ti_sci_proc *tsp, |
| 91 | u64 *boot_vector, u32 *cfg_flags, |
| 92 | u32 *ctrl_flags, u32 *status_flags) |
| 93 | { |
| 94 | int ret; |
| 95 | |
| 96 | ret = tsp->ops->get_status(tsp->sci, tsp->proc_id, boot_vector, |
| 97 | cfg_flags, ctrl_flags, status_flags); |
| 98 | if (ret) |
| 99 | dev_err(tsp->dev, "ti-sci processor get_status failed: %d\n", |
| 100 | ret); |
| 101 | return ret; |
| 102 | } |
| 103 | |
| 104 | #endif /* REMOTEPROC_TI_SCI_PROC_H */ |