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+/***********************license start***********************************
+* Copyright (c) 2003-2017 Cavium Inc. (support@cavium.com). All rights
+* reserved.
+*
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*
+* * Redistributions of source code must retain the above copyright
+* notice, this list of conditions and the following disclaimer.
+*
+* * Redistributions in binary form must reproduce the above
+* copyright notice, this list of conditions and the following
+* disclaimer in the documentation and/or other materials provided
+* with the distribution.
+*
+* * Neither the name of Cavium Inc. nor the names of
+* its contributors may be used to endorse or promote products
+* derived from this software without specific prior written
+* permission.
+*
+* This Software, including technical data, may be subject to U.S. export
+* control laws, including the U.S. Export Administration Act and its
+* associated regulations, and may be subject to export or import
+* regulations in other countries.
+*
+* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
+* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
+* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT
+* TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
+* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
+* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES
+* OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR
+* PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT,
+* QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK
+* ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
+***********************license end**************************************/
+
+/**
+ * @file
+ *
+ * Interface to the Level 2 Cache (L2C) control, measurement, and debugging
+ * facilities.
+ *
+ * <hr>$Revision: 50663 $<hr>
+ *
+ * @addtogroup hal
+ * @{
+ */
+
+/**
+ * Perform one time initialization of L2 for improved
+ * performance. This can be called after L2 is in use.
+ *
+ * @return Zero on success, negative on failure.
+ */
+int bdk_l2c_initialize(bdk_node_t node);
+
+/**
+ * Return the L2 Cache way partitioning for a given core.
+ *
+ * @param node Node to use in a Numa setup. Can be an exact ID or a special
+ * value.
+ * @param core The core processor of interest.
+ *
+ * @return The mask specifying the partitioning. 0 bits in mask indicates
+ * the cache 'ways' that a core can evict from.
+ * -1 on error
+ */
+int bdk_l2c_get_core_way_partition(bdk_node_t node, int core);
+
+/**
+ * Partitions the L2 cache for a core
+ *
+ * @param node Node to use in a Numa setup. Can be an exact ID or a special
+ * value.
+ * @param core The core that the partitioning applies to.
+ * @param mask The partitioning of the ways expressed as a binary mask. A 0 bit allows the core
+ * to evict cache lines from a way, while a 1 bit blocks the core from evicting any lines
+ * from that way. There must be at least one allowed way (0 bit) in the mask.
+ *
+ * @note If any ways are blocked for all cores and the HW blocks, then those ways will never have
+ * any cache lines evicted from them. All cores and the hardware blocks are free to read from
+ * all ways regardless of the partitioning.
+ */
+int bdk_l2c_set_core_way_partition(bdk_node_t node, int core, uint32_t mask);
+
+/**
+ * Return the L2 Cache way partitioning for the hw blocks.
+ *
+ * @param node Node to use in a Numa setup. Can be an exact ID or a special value.
+ * @return The mask specifying the reserved way. 0 bits in mask indicates
+ * the cache 'ways' that a core can evict from.
+ * -1 on error
+ */
+int bdk_l2c_get_hw_way_partition(bdk_node_t node);
+
+/**
+ * Partitions the L2 cache for the hardware blocks.
+ *
+ * @param node Node to use in a Numa setup. Can be an exact ID or a special
+ * value.
+ * @param mask The partitioning of the ways expressed as a binary mask. A 0 bit allows the core
+ * to evict cache lines from a way, while a 1 bit blocks the core from evicting any lines
+ * from that way. There must be at least one allowed way (0 bit) in the mask.
+ *
+ * @note If any ways are blocked for all cores and the HW blocks, then those ways will never have
+ * any cache lines evicted from them. All cores and the hardware blocks are free to read from
+ * all ways regardless of the partitioning.
+ */
+int bdk_l2c_set_hw_way_partition(bdk_node_t node, uint32_t mask);
+
+/**
+ * Locks a specified memory region in the L2 cache.
+ *
+ * Note that if not all lines can be locked, that means that all
+ * but one of the ways (associations) available to the locking
+ * core are locked. Having only 1 association available for
+ * normal caching may have a significant adverse affect on performance.
+ * Care should be taken to ensure that enough of the L2 cache is left
+ * unlocked to allow for normal caching of DRAM.
+ *
+ * @param node Node to use in a Numa setup. Can be an exact ID or a special
+ * value.
+ * @param start Physical address of the start of the region to lock
+ * @param len Length (in bytes) of region to lock
+ *
+ * @return Number of requested lines that where not locked.
+ * 0 on success (all locked)
+ */
+int bdk_l2c_lock_mem_region(bdk_node_t node, uint64_t start, uint64_t len);
+
+/**
+ * Unlocks a region of memory that is locked in the L2 cache
+ *
+ * @param node Node to use in a Numa setup. Can be an exact ID or a special
+ * value.
+ * @param start start physical address
+ * @param len length (in bytes) to unlock
+ *
+ * @return Number of locked lines that the call unlocked
+ */
+int bdk_l2c_unlock_mem_region(bdk_node_t node, uint64_t start, uint64_t len);
+
+/**
+ * Flushes (and unlocks) the entire L2 cache.
+ */
+void bdk_l2c_flush(bdk_node_t node);
+
+/**
+ *
+ * @return Returns the size of the L2 cache in bytes,
+ * -1 on error (unrecognized model)
+ */
+int bdk_l2c_get_cache_size_bytes(bdk_node_t node);
+
+/**
+ * Return the number of sets in the L2 Cache
+ *
+ * @return
+ */
+int bdk_l2c_get_num_sets(bdk_node_t node);
+
+/**
+ * Return the number of associations in the L2 Cache
+ *
+ * @return
+ */
+int bdk_l2c_get_num_assoc(bdk_node_t node);
+
+/**
+ * Return true if the BDK has locked itself in L2
+ *
+ * @return
+ */
+int bdk_l2c_is_locked(bdk_node_t node);
+
+/** @} */