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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 */ |