diff options
Diffstat (limited to 'drivers/infiniband/hw/hfi1/aspm.h')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/aspm.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/aspm.h b/drivers/infiniband/hw/hfi1/aspm.h new file mode 100644 index 000000000..df295f47b --- /dev/null +++ b/drivers/infiniband/hw/hfi1/aspm.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause */ +/* + * Copyright(c) 2015-2017 Intel Corporation. + */ + +#ifndef _ASPM_H +#define _ASPM_H + +#include "hfi.h" + +extern uint aspm_mode; + +enum aspm_mode { + ASPM_MODE_DISABLED = 0, /* ASPM always disabled, performance mode */ + ASPM_MODE_ENABLED = 1, /* ASPM always enabled, power saving mode */ + ASPM_MODE_DYNAMIC = 2, /* ASPM enabled/disabled dynamically */ +}; + +void aspm_init(struct hfi1_devdata *dd); +void aspm_exit(struct hfi1_devdata *dd); +void aspm_hw_disable_l1(struct hfi1_devdata *dd); +void __aspm_ctx_disable(struct hfi1_ctxtdata *rcd); +void aspm_disable_all(struct hfi1_devdata *dd); +void aspm_enable_all(struct hfi1_devdata *dd); + +static inline void aspm_ctx_disable(struct hfi1_ctxtdata *rcd) +{ + /* Quickest exit for minimum impact */ + if (likely(!rcd->aspm_intr_supported)) + return; + + __aspm_ctx_disable(rcd); +} + +#endif /* _ASPM_H */ |