1 files changed, 108 insertions, 0 deletions
diff --git a/intern/numaapi/include/numaapi.h b/intern/numaapi/include/numaapi.h
new file mode 100644
index 00000000000..a4f32d88458
--- /dev/null
+++ b/intern/numaapi/include/numaapi.h
@@ -0,0 +1,108 @@
+// Copyright (c) 2016, libnumaapi authors
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//
+// Author: Sergey Sharybin (sergey.vfx@gmail.com)
+
+#ifndef __LIBNUMAAPI_H__
+#define __LIBNUMAAPI_H__
+
+#include <stdbool.h>
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define NUMAAPI_VERSION_MAJOR 1
+#define NUMAAPI_VERSION_MINOR 0
+
+typedef enum NUMAAPI_Result {
+  NUMAAPI_SUCCESS       = 0,
+  // NUMA is not available on this platform.
+  NUMAAPI_NOT_AVAILABLE = 1,
+  // Generic error, no real details are available,
+  NUMAAPI_ERROR         = 2,
+  // Error installing atexit() handlers.
+  NUMAAPI_ERROR_ATEXIT  = 3,
+} NUMAAPI_Result;
+
+////////////////////////////////////////////////////////////////////////////////
+// Initialization.
+
+// Initialize NUMA API.
+//
+// This is first call which should be called before any other NUMA functions
+// can be used.
+NUMAAPI_Result numaAPI_Initialize(void);
+
+// Get string representation of NUMAPIResult.
+const char* numaAPI_ResultAsString(NUMAAPI_Result result);
+
+////////////////////////////////////////////////////////////////////////////////
+// Topology query.
+
+// Get number of available nodes.
+//
+// This is in fact an index of last node plus one and it's not guaranteed
+// that all nodes up to this one are available.
+int numaAPI_GetNumNodes(void);
+
+// Returns truth if the given node is available for compute.
+bool numaAPI_IsNodeAvailable(int node);
+
+// Getnumber of available processors on a given node.
+int numaAPI_GetNumNodeProcessors(int node);
+
+////////////////////////////////////////////////////////////////////////////////
+// Affinities.
+
+// Runs the current process and its children on a specific node.
+//
+// Returns truth if affinity has successfully changed.
+//
+// NOTE: This function can not change active CPU group. Mainly designed to deal
+// with Threadripper 2 topology, to make it possible to gain maximum performance
+// for the main application thread.
+bool numaAPI_RunProcessOnNode(int node);
+
+// Runs the current thread and its children on a specific node.
+//
+// Returns truth if affinity has successfully changed.
+bool numaAPI_RunThreadOnNode(int node);
+
+////////////////////////////////////////////////////////////////////////////////
+// Memory management.
+
+// Allocate memory on a given node,
+void* numaAPI_AllocateOnNode(size_t size, int node);
+
+// Allocate memory in the local memory, closest to the current node.
+void* numaAPI_AllocateLocal(size_t size);
+
+// Frees size bytes of memory starting at start.
+//
+// TODO(sergey): Consider making it regular free() semantic.
+void numaAPI_Free(void* start, size_t size);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  // __LIBNUMAAPI_H__