diff options
Diffstat (limited to 'drivers/remoteproc/ti_sci_proc.h')
| -rw-r--r-- | drivers/remoteproc/ti_sci_proc.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/drivers/remoteproc/ti_sci_proc.h b/drivers/remoteproc/ti_sci_proc.h new file mode 100644 index 0000000..ccfc39e --- /dev/null +++ b/drivers/remoteproc/ti_sci_proc.h @@ -0,0 +1,121 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Texas Instruments TI-SCI Processor Controller Helper Functions + * + * Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/ + * Lokesh Vutla <lokeshvutla@ti.com> + * Suman Anna <s-anna@ti.com> + */ + +#ifndef REMOTEPROC_TI_SCI_PROC_H +#define REMOTEPROC_TI_SCI_PROC_H + +#define TISCI_INVALID_HOST 0xff + +/** + * struct ti_sci_proc - structure representing a processor control client + * @sci: cached TI-SCI protocol handle + * @ops: cached TI-SCI proc ops + * @proc_id: processor id for the consumer remoteproc device + * @host_id: host id to pass the control over for this consumer remoteproc + * device + */ +struct ti_sci_proc { + const struct ti_sci_handle *sci; + const struct ti_sci_proc_ops *ops; + u8 proc_id; + u8 host_id; +}; + +static inline int ti_sci_proc_request(struct ti_sci_proc *tsp) +{ + int ret; + + debug("%s: proc_id = %d\n", __func__, tsp->proc_id); + + ret = tsp->ops->proc_request(tsp->sci, tsp->proc_id); + if (ret) + pr_err("ti-sci processor request failed: %d\n", ret); + return ret; +} + +static inline int ti_sci_proc_release(struct ti_sci_proc *tsp) +{ + int ret; + + debug("%s: proc_id = %d\n", __func__, tsp->proc_id); + + if (tsp->host_id != TISCI_INVALID_HOST) + ret = tsp->ops->proc_handover(tsp->sci, tsp->proc_id, + tsp->host_id); + else + ret = tsp->ops->proc_release(tsp->sci, tsp->proc_id); + + if (ret) + pr_err("ti-sci processor release failed: %d\n", ret); + return ret; +} + +static inline int ti_sci_proc_handover(struct ti_sci_proc *tsp) +{ + int ret; + + debug("%s: proc_id = %d\n", __func__, tsp->proc_id); + + ret = tsp->ops->proc_handover(tsp->sci, tsp->proc_id, tsp->host_id); + if (ret) + pr_err("ti-sci processor handover of %d to %d failed: %d\n", + tsp->proc_id, tsp->host_id, ret); + return ret; +} + +static inline int ti_sci_proc_get_status(struct ti_sci_proc *tsp, + u64 *boot_vector, u32 *cfg_flags, + u32 *ctrl_flags, u32 *status_flags) +{ + int ret; + + ret = tsp->ops->get_proc_boot_status(tsp->sci, tsp->proc_id, + boot_vector, cfg_flags, ctrl_flags, + status_flags); + if (ret) + pr_err("ti-sci processor get_status failed: %d\n", ret); + + debug("%s: proc_id = %d, boot_vector = 0x%llx, cfg_flags = 0x%x, ctrl_flags = 0x%x, sts = 0x%x\n", + __func__, tsp->proc_id, *boot_vector, *cfg_flags, *ctrl_flags, + *status_flags); + return ret; +} + +static inline int ti_sci_proc_set_config(struct ti_sci_proc *tsp, + u64 boot_vector, + u32 cfg_set, u32 cfg_clr) +{ + int ret; + + debug("%s: proc_id = %d, boot_vector = 0x%llx, cfg_set = 0x%x, cfg_clr = 0x%x\n", + __func__, tsp->proc_id, boot_vector, cfg_set, cfg_clr); + + ret = tsp->ops->set_proc_boot_cfg(tsp->sci, tsp->proc_id, boot_vector, + cfg_set, cfg_clr); + if (ret) + pr_err("ti-sci processor set_config failed: %d\n", ret); + return ret; +} + +static inline int ti_sci_proc_set_control(struct ti_sci_proc *tsp, + u32 ctrl_set, u32 ctrl_clr) +{ + int ret; + + debug("%s: proc_id = %d, ctrl_set = 0x%x, ctrl_clr = 0x%x\n", __func__, + tsp->proc_id, ctrl_set, ctrl_clr); + + ret = tsp->ops->set_proc_boot_ctrl(tsp->sci, tsp->proc_id, ctrl_set, + ctrl_clr); + if (ret) + pr_err("ti-sci processor set_control failed: %d\n", ret); + return ret; +} + +#endif /* REMOTEPROC_TI_SCI_PROC_H */ |