-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- * 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 Intel Corporation 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 IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation
*/
#ifndef POWER_MANAGER_H_
#ifdef __cplusplus
extern "C" {
#endif
+struct core_details {
+ uint64_t last_branches;
+ uint64_t last_branch_misses;
+ uint16_t global_enabled_cpus;
+ uint16_t oob_enabled;
+ int msr_fd;
+};
+
+struct core_info {
+ uint16_t core_count;
+ struct core_details *cd;
+ float branch_ratio_threshold;
+};
+
+#define BRANCH_RATIO_THRESHOLD 0.1
+
+struct core_info *
+get_core_info(void);
+
+int
+core_info_init(void);
+
+#define RTE_LOGTYPE_POWER_MANAGER RTE_LOGTYPE_USER1
-/* Maximum number of CPUS to manage */
-#define POWER_MGR_MAX_CPUS 64
/**
* Initialize power management.
* Initializes resources and verifies the number of CPUs on the system.
*/
int power_manager_scale_mask_max(uint64_t core_mask);
+/**
+ * Enable Turbo Boost on the cores specified in core_mask.
+ * It is thread-safe.
+ *
+ * @param core_mask
+ * The uint64_t bit-mask of cores to change frequency.
+ *
+ * @return
+ * - 1 on success.
+ * - Negative on error.
+ */
+int power_manager_enable_turbo_mask(uint64_t core_mask);
+
+/**
+ * Disable Turbo Boost on the cores specified in core_mask.
+ * It is thread-safe.
+ *
+ * @param core_mask
+ * The uint64_t bit-mask of cores to change frequency.
+ *
+ * @return
+ * - 1 on success.
+ * - Negative on error.
+ */
+int power_manager_disable_turbo_mask(uint64_t core_mask);
+
/**
* Scale up frequency for the core specified by core_num.
* It is thread-safe.
*/
int power_manager_scale_core_max(unsigned core_num);
+/**
+ * Enable Turbo Boost for the core specified by core_num.
+ * It is thread-safe.
+ *
+ * @param core_num
+ * The core number to boost
+ *
+ * @return
+ * - 1 on success.
+ * - Negative on error.
+ */
+int power_manager_enable_turbo_core(unsigned int core_num);
+
+/**
+ * Disable Turbo Boost for the core specified by core_num.
+ * It is thread-safe.
+ *
+ * @param core_num
+ * The core number to boost
+ *
+ * @return
+ * - 1 on success.
+ * - Negative on error.
+ */
+int power_manager_disable_turbo_core(unsigned int core_num);
+
/**
* Get the current freuency of the core specified by core_num
*
*/
uint32_t power_manager_get_current_frequency(unsigned core_num);
+/**
+ * Scale to medium frequency for the core specified by core_num.
+ * It is thread-safe.
+ *
+ * @param core_num
+ * The core number to change frequency
+ *
+ * @return
+ * - 1 on success.
+ * - 0 if frequency not changed.
+ * - Negative on error.
+ */
+int power_manager_scale_core_med(unsigned int core_num);
#ifdef __cplusplus
}