drivers/firmware/qcom_scm-64.c

   1 /* Copyright (c) 2015, The Linux Foundation. All rights reserved.
   2  *
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License version 2 and
   5  * only version 2 as published by the Free Software Foundation.
   6  *
   7  * This program is distributed in the hope that it will be useful,
   8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  * GNU General Public License for more details.
  11  */
  12
  13 #include <linux/io.h>
  14 #include <linux/errno.h>
  15 #include <linux/qcom_scm.h>
  16
  17 /**
  18  * qcom_scm_set_cold_boot_addr() - Set the cold boot address for cpus
  19  * @entry: Entry point function for the cpus
  20  * @cpus: The cpumask of cpus that will use the entry point
  21  *
  22  * Set the cold boot address of the cpus. Any cpu outside the supported
  23  * range would be removed from the cpu present mask.
  24  */
  25 int __qcom_scm_set_cold_boot_addr(void *entry, const cpumask_t *cpus)
  26 {
  27         return -ENOTSUPP;
  28 }
  29
  30 /**
  31  * qcom_scm_set_warm_boot_addr() - Set the warm boot address for cpus
  32  * @entry: Entry point function for the cpus
  33  * @cpus: The cpumask of cpus that will use the entry point
  34  *
  35  * Set the Linux entry point for the SCM to transfer control to when coming
  36  * out of a power down. CPU power down may be executed on cpuidle or hotplug.
  37  */
  38 int __qcom_scm_set_warm_boot_addr(void *entry, const cpumask_t *cpus)
  39 {
  40         return -ENOTSUPP;
  41 }
  42
  43 /**
  44  * qcom_scm_cpu_power_down() - Power down the cpu
  45  * @flags - Flags to flush cache
  46  *
  47  * This is an end point to power down cpu. If there was a pending interrupt,
  48  * the control would return from this function, otherwise, the cpu jumps to the
  49  * warm boot entry point set for this cpu upon reset.
  50  */
  51 void __qcom_scm_cpu_power_down(u32 flags)
  52 {
  53 }
  54
  55 int __qcom_scm_is_call_available(u32 svc_id, u32 cmd_id)
  56 {
  57         return -ENOTSUPP;
  58 }
  59
  60 int __qcom_scm_hdcp_req(struct qcom_scm_hdcp_req *req, u32 req_cnt, u32 *resp)
  61 {
  62         return -ENOTSUPP;
  63 }