summaryrefslogtreecommitdiffstats
path: root/drivers/infiniband/hw/hfi1/aspm.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/infiniband/hw/hfi1/aspm.h')
-rw-r--r--drivers/infiniband/hw/hfi1/aspm.h35
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 */