Add flat memory manager module

Signed-off-by: Alexey Skidanov <Alexey.Skidanov@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>

src/fmm.h

@@ -0,0 +1,60 @@
+/*
+ * Copyright © 2014 Advanced Micro Devices, Inc.
+ *
+ * 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 (including
+ * the next paragraph) 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.
+ */
+
+#ifndef FMM_H_
+#define FMM_H_
+
+#include "hsakmttypes.h"
+#include <stddef.h>
+
+typedef enum {
+	FMM_FIRST_APERTURE_TYPE = 0,
+	FMM_GPUVM = FMM_FIRST_APERTURE_TYPE,
+	FMM_LDS,
+	FMM_SCRATCH,
+	FMM_LAST_APERTURE_TYPE
+} aperture_type_e;
+
+typedef struct {
+	aperture_type_e app_type;
+	uint64_t size;
+	void* start_address;
+} aperture_properties_t;
+
+HSAKMT_STATUS fmm_init_process_apertures(void);
+/*
+ * Memory interface
+ */
+void* fmm_allocate_scratch(uint32_t gpu_id, uint64_t MemorySizeInBytes);
+void* fmm_allocate_device(uint32_t gpu_id, uint64_t MemorySizeInBytes);
+void fmm_print(uint32_t node);
+bool fmm_is_inside_some_aperture(void* address);
+int fmm_release(void* address, HSAuint64 MemorySizeInBytes);
+
+/* Topology interface*/
+HSAKMT_STATUS fmm_node_added(HSAuint32 gpu_id);
+HSAKMT_STATUS fmm_node_removed(HSAuint32 gpu_id);
+HSAuint64 fmm_get_aperture_base(aperture_type_e aperture_type, HSAuint32 gpu_id);
+#endif /* FMM_H_ */