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- /* 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
- * @dev_id: Device ID as identified by system controller.
- */
- struct ti_sci_proc {
- const struct ti_sci_handle *sci;
- const struct ti_sci_proc_ops *ops;
- u8 proc_id;
- u8 host_id;
- u16 dev_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;
- }
- static inline int ti_sci_proc_power_domain_on(struct ti_sci_proc *tsp)
- {
- int ret;
- debug("%s: dev_id = %d\n", __func__, tsp->dev_id);
- ret = tsp->sci->ops.dev_ops.get_device_exclusive(tsp->sci, tsp->dev_id);
- if (ret)
- pr_err("Power-domain on failed for dev = %d\n", tsp->dev_id);
- return ret;
- }
- static inline int ti_sci_proc_power_domain_off(struct ti_sci_proc *tsp)
- {
- int ret;
- debug("%s: dev_id = %d\n", __func__, tsp->dev_id);
- ret = tsp->sci->ops.dev_ops.put_device(tsp->sci, tsp->dev_id);
- if (ret)
- pr_err("Power-domain off failed for dev = %d\n", tsp->dev_id);
- return ret;
- }
- #endif /* REMOTEPROC_TI_SCI_PROC_H */
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