drivers/staging/gasket/apex.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Apex kernel-userspace interface definitions.
   4  *
   5  * Copyright (C) 2018 Google, Inc.
   6  */
   7 #ifndef __APEX_H__
   8 #define __APEX_H__
   9
  10 #include <linux/ioctl.h>
  11
  12 /* Clock Gating ioctl. */
  13 struct apex_gate_clock_ioctl {
  14         /* Enter or leave clock gated state. */
  15         u64 enable;
  16
  17         /* If set, enter clock gating state, regardless of custom block's
  18          * internal idle state
  19          */
  20         u64 force_idle;
  21 };
  22
  23 /* Base number for all Apex-common IOCTLs */
  24 #define APEX_IOCTL_BASE 0x7F
  25
  26 /* Enable/Disable clock gating. */
  27 #define APEX_IOCTL_GATE_CLOCK                                                  \
  28         _IOW(APEX_IOCTL_BASE, 0, struct apex_gate_clock_ioctl)
  29
  30 #endif /* __APEX_H__ */