mirror of
https://github.com/AsahiLinux/u-boot
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f7954828b8
Power domain for the remote cores needs to be handled in a right sequence as mandated by the spec. Introduce tisci helper apis that can control power-domains of remote cores. TISCI clients can use this api and control the remote cores power domain instead of hooking it to power-domain layer. Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
148 lines
3.8 KiB
C
148 lines
3.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Texas Instruments TI-SCI Processor Controller Helper Functions
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*
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* Copyright (C) 2018-2019 Texas Instruments Incorporated - http://www.ti.com/
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* Lokesh Vutla <lokeshvutla@ti.com>
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* Suman Anna <s-anna@ti.com>
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*/
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#ifndef REMOTEPROC_TI_SCI_PROC_H
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#define REMOTEPROC_TI_SCI_PROC_H
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#define TISCI_INVALID_HOST 0xff
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/**
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* struct ti_sci_proc - structure representing a processor control client
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* @sci: cached TI-SCI protocol handle
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* @ops: cached TI-SCI proc ops
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* @proc_id: processor id for the consumer remoteproc device
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* @host_id: host id to pass the control over for this consumer remoteproc
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* device
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* @dev_id: Device ID as identified by system controller.
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*/
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struct ti_sci_proc {
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const struct ti_sci_handle *sci;
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const struct ti_sci_proc_ops *ops;
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u8 proc_id;
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u8 host_id;
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u16 dev_id;
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};
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static inline int ti_sci_proc_request(struct ti_sci_proc *tsp)
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{
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int ret;
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debug("%s: proc_id = %d\n", __func__, tsp->proc_id);
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ret = tsp->ops->proc_request(tsp->sci, tsp->proc_id);
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if (ret)
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pr_err("ti-sci processor request failed: %d\n", ret);
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return ret;
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}
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static inline int ti_sci_proc_release(struct ti_sci_proc *tsp)
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{
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int ret;
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debug("%s: proc_id = %d\n", __func__, tsp->proc_id);
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if (tsp->host_id != TISCI_INVALID_HOST)
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ret = tsp->ops->proc_handover(tsp->sci, tsp->proc_id,
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tsp->host_id);
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else
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ret = tsp->ops->proc_release(tsp->sci, tsp->proc_id);
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if (ret)
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pr_err("ti-sci processor release failed: %d\n", ret);
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return ret;
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}
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static inline int ti_sci_proc_handover(struct ti_sci_proc *tsp)
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{
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int ret;
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debug("%s: proc_id = %d\n", __func__, tsp->proc_id);
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ret = tsp->ops->proc_handover(tsp->sci, tsp->proc_id, tsp->host_id);
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if (ret)
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pr_err("ti-sci processor handover of %d to %d failed: %d\n",
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tsp->proc_id, tsp->host_id, ret);
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return ret;
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}
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static inline int ti_sci_proc_get_status(struct ti_sci_proc *tsp,
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u64 *boot_vector, u32 *cfg_flags,
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u32 *ctrl_flags, u32 *status_flags)
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{
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int ret;
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ret = tsp->ops->get_proc_boot_status(tsp->sci, tsp->proc_id,
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boot_vector, cfg_flags, ctrl_flags,
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status_flags);
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if (ret)
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pr_err("ti-sci processor get_status failed: %d\n", ret);
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debug("%s: proc_id = %d, boot_vector = 0x%llx, cfg_flags = 0x%x, ctrl_flags = 0x%x, sts = 0x%x\n",
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__func__, tsp->proc_id, *boot_vector, *cfg_flags, *ctrl_flags,
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*status_flags);
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return ret;
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}
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static inline int ti_sci_proc_set_config(struct ti_sci_proc *tsp,
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u64 boot_vector,
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u32 cfg_set, u32 cfg_clr)
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{
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int ret;
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debug("%s: proc_id = %d, boot_vector = 0x%llx, cfg_set = 0x%x, cfg_clr = 0x%x\n",
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__func__, tsp->proc_id, boot_vector, cfg_set, cfg_clr);
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ret = tsp->ops->set_proc_boot_cfg(tsp->sci, tsp->proc_id, boot_vector,
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cfg_set, cfg_clr);
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if (ret)
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pr_err("ti-sci processor set_config failed: %d\n", ret);
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return ret;
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}
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static inline int ti_sci_proc_set_control(struct ti_sci_proc *tsp,
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u32 ctrl_set, u32 ctrl_clr)
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{
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int ret;
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debug("%s: proc_id = %d, ctrl_set = 0x%x, ctrl_clr = 0x%x\n", __func__,
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tsp->proc_id, ctrl_set, ctrl_clr);
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ret = tsp->ops->set_proc_boot_ctrl(tsp->sci, tsp->proc_id, ctrl_set,
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ctrl_clr);
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if (ret)
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pr_err("ti-sci processor set_control failed: %d\n", ret);
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return ret;
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}
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static inline int ti_sci_proc_power_domain_on(struct ti_sci_proc *tsp)
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{
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int ret;
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debug("%s: dev_id = %d\n", __func__, tsp->dev_id);
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ret = tsp->sci->ops.dev_ops.get_device_exclusive(tsp->sci, tsp->dev_id);
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if (ret)
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pr_err("Power-domain on failed for dev = %d\n", tsp->dev_id);
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return ret;
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}
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static inline int ti_sci_proc_power_domain_off(struct ti_sci_proc *tsp)
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{
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int ret;
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debug("%s: dev_id = %d\n", __func__, tsp->dev_id);
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ret = tsp->sci->ops.dev_ops.put_device(tsp->sci, tsp->dev_id);
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if (ret)
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pr_err("Power-domain off failed for dev = %d\n", tsp->dev_id);
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return ret;
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}
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#endif /* REMOTEPROC_TI_SCI_PROC_H */
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