/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Texas Instruments TI-SCI Processor Controller Helper Functions
*
* Copyright (C) 2018-2020 Texas Instruments Incorporated - https://www.ti.com/
* Suman Anna <s-anna@ti.com>
*/
#ifndef REMOTEPROC_TI_SCI_PROC_H
#define REMOTEPROC_TI_SCI_PROC_H
#include <linux/soc/ti/ti_sci_protocol.h>
/**
* struct ti_sci_proc - structure representing a processor control client
* @sci: cached TI-SCI protocol handle
* @ops: cached TI-SCI proc ops
* @dev: cached client device pointer
* @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;
struct device *dev;
u8 proc_id;
u8 host_id;
};
static inline
struct ti_sci_proc *ti_sci_proc_of_get_tsp(
struct device *dev,
const struct ti_sci_handle *sci)
{
struct ti_sci_proc *tsp;
u32 temp[2];
int ret;
ret = of_property_read_u32_array(dev_of_node(dev),
"ti,sci-proc-ids",
temp, 2);
if (ret < 0)
return ERR_PTR(ret);
tsp = devm_kzalloc(dev,
sizeof(*tsp), GFP_KERNEL);
if (!tsp)
return ERR_PTR(-ENOMEM);
tsp->dev = dev;
tsp->sci = sci;
tsp->ops = &sci->ops.proc_ops;
tsp->proc_id = temp[0];
tsp->host_id = temp[1];
return tsp;
}
static inline int ti_sci_proc_request(
struct ti_sci_proc *tsp)
{
int ret;
ret = tsp->ops->request(tsp->sci, tsp->proc_id);
if (ret)
dev_err(tsp->dev,
"ti-sci processor request failed: %d\n",
ret);
return ret;
}
static inline int ti_sci_proc_release(
struct ti_sci_proc *tsp)
{
int ret;
ret = tsp->ops->release(tsp->sci, tsp->proc_id);
if (ret)
dev_err(tsp->dev,
"ti-sci processor release failed: %d\n",
ret);
return ret;
}
static inline int ti_sci_proc_handover(
struct ti_sci_proc *tsp)
{
int ret;
ret = tsp->ops->handover(tsp->sci, tsp->proc_id, tsp->host_id);
if (ret)
dev_err(tsp->dev,
"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_set_config(
struct ti_sci_proc *tsp,
u64 boot_vector,
u32 cfg_set, u32 cfg_clr)
{
int ret;
ret = tsp->ops->set_config(tsp->sci, tsp->proc_id, boot_vector,
cfg_set, cfg_clr);
if (ret)
dev_err(tsp->dev,
"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;
ret = tsp->ops->set_control(tsp->sci, tsp->proc_id, ctrl_set, ctrl_clr);
if (ret)
dev_err(tsp->dev,
"ti-sci processor set_control failed: %d\n",
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_status(tsp->sci, tsp->proc_id, boot_vector,
cfg_flags, ctrl_flags, status_flags);
if (ret)
dev_err(tsp->dev,
"ti-sci processor get_status failed: %d\n",
ret);
return ret;
}
#endif /* REMOTEPROC_TI_SCI_PROC_H */
