/* 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 */
Messung V0.5 in Prozent C=97 H=100 G=98
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(vorverarbeitet am 2026-09-29)
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