drivers/infiniband/hw/hfi1/aspm.h

   1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
   2 /*
   3  * Copyright(c) 2015-2017 Intel Corporation.
   4  */
   5
   6 #ifndef _ASPM_H
   7 #define _ASPM_H
   8
   9 #include "hfi.h"
  10
  11 extern uint aspm_mode;
  12
  13 enum aspm_mode {
  14         ASPM_MODE_DISABLED = 0, /* ASPM always disabled, performance mode */
  15         ASPM_MODE_ENABLED = 1,  /* ASPM always enabled, power saving mode */
  16         ASPM_MODE_DYNAMIC = 2,  /* ASPM enabled/disabled dynamically */
  17 };
  18
  19 void aspm_init(struct hfi1_devdata *dd);
  20 void aspm_exit(struct hfi1_devdata *dd);
  21 void aspm_hw_disable_l1(struct hfi1_devdata *dd);
  22 void __aspm_ctx_disable(struct hfi1_ctxtdata *rcd);
  23 void aspm_disable_all(struct hfi1_devdata *dd);
  24 void aspm_enable_all(struct hfi1_devdata *dd);
  25
  26 static inline void aspm_ctx_disable(struct hfi1_ctxtdata *rcd)
  27 {
  28         /* Quickest exit for minimum impact */
  29         if (likely(!rcd->aspm_intr_supported))
  30                 return;
  31
  32         __aspm_ctx_disable(rcd);
  33 }
  34
  35 #endif /* _ASPM_H */