drivers/remoteproc/ti_sci_proc.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Texas Instruments TI-SCI Processor Controller Helper Functions
   4  *
   5  * Copyright (C) 2018-2020 Texas Instruments Incorporated - https://www.ti.com/
   6  *      Suman Anna <s-anna@ti.com>
   7  */
   8
   9 #ifndef REMOTEPROC_TI_SCI_PROC_H
  10 #define REMOTEPROC_TI_SCI_PROC_H
  11
  12 #include <linux/soc/ti/ti_sci_protocol.h>
  13
  14 /**
  15  * struct ti_sci_proc - structure representing a processor control client
  16  * @sci: cached TI-SCI protocol handle
  17  * @ops: cached TI-SCI proc ops
  18  * @dev: cached client device pointer
  19  * @proc_id: processor id for the consumer remoteproc device
  20  * @host_id: host id to pass the control over for this consumer remoteproc
  21  *           device
  22  */
  23 struct ti_sci_proc {
  24         const struct ti_sci_handle *sci;
  25         const struct ti_sci_proc_ops *ops;
  26         struct device *dev;
  27         u8 proc_id;
  28         u8 host_id;
  29 };
  30
  31 static inline int ti_sci_proc_request(struct ti_sci_proc *tsp)
  32 {
  33         int ret;
  34
  35         ret = tsp->ops->request(tsp->sci, tsp->proc_id);
  36         if (ret)
  37                 dev_err(tsp->dev, "ti-sci processor request failed: %d\n",
  38                         ret);
  39         return ret;
  40 }
  41
  42 static inline int ti_sci_proc_release(struct ti_sci_proc *tsp)
  43 {
  44         int ret;
  45
  46         ret = tsp->ops->release(tsp->sci, tsp->proc_id);
  47         if (ret)
  48                 dev_err(tsp->dev, "ti-sci processor release failed: %d\n",
  49                         ret);
  50         return ret;
  51 }
  52
  53 static inline int ti_sci_proc_handover(struct ti_sci_proc *tsp)
  54 {
  55         int ret;
  56
  57         ret = tsp->ops->handover(tsp->sci, tsp->proc_id, tsp->host_id);
  58         if (ret)
  59                 dev_err(tsp->dev, "ti-sci processor handover of %d to %d failed: %d\n",
  60                         tsp->proc_id, tsp->host_id, ret);
  61         return ret;
  62 }
  63
  64 static inline int ti_sci_proc_set_config(struct ti_sci_proc *tsp,
  65                                          u64 boot_vector,
  66                                          u32 cfg_set, u32 cfg_clr)
  67 {
  68         int ret;
  69
  70         ret = tsp->ops->set_config(tsp->sci, tsp->proc_id, boot_vector,
  71                                    cfg_set, cfg_clr);
  72         if (ret)
  73                 dev_err(tsp->dev, "ti-sci processor set_config failed: %d\n",
  74                         ret);
  75         return ret;
  76 }
  77
  78 static inline int ti_sci_proc_set_control(struct ti_sci_proc *tsp,
  79                                           u32 ctrl_set, u32 ctrl_clr)
  80 {
  81         int ret;
  82
  83         ret = tsp->ops->set_control(tsp->sci, tsp->proc_id, ctrl_set, ctrl_clr);
  84         if (ret)
  85                 dev_err(tsp->dev, "ti-sci processor set_control failed: %d\n",
  86                         ret);
  87         return ret;
  88 }
  89
  90 static inline int ti_sci_proc_get_status(struct ti_sci_proc *tsp,
  91                                          u64 *boot_vector, u32 *cfg_flags,
  92                                          u32 *ctrl_flags, u32 *status_flags)
  93 {
  94         int ret;
  95
  96         ret = tsp->ops->get_status(tsp->sci, tsp->proc_id, boot_vector,
  97                                    cfg_flags, ctrl_flags, status_flags);
  98         if (ret)
  99                 dev_err(tsp->dev, "ti-sci processor get_status failed: %d\n",
 100                         ret);
 101         return ret;
 102 }
 103
 104 #endif /* REMOTEPROC_TI_SCI_PROC_H */