/** Linux kernel related functions. * * @file * @author Steffen Vogel * @copyright 2017, Institute for Automation of Complex Power Systems, EONERC * @license GNU General Public License (version 3) * * VILLASnode * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . *********************************************************************************/ /** @addtogroup fpga Kernel @{ */ #pragma once #include #include /* Forward declarations */ struct version; //#include /** Check if current process has capability \p cap. * * @retval 0 If capabilty is present. * @retval <0 If capability is not present. */ //int kernel_check_cap(cap_value_t cap); /** Get number of reserved hugepages. */ int kernel_get_nr_hugepages(); /** Set number of reserved hugepages. */ int kernel_set_nr_hugepages(int nr); /** Get kernel cmdline parameter * * See https://www.kernel.org/doc/Documentation/kernel-parameters.txt * * @param param The cmdline parameter to look for. * @param buf The string buffer to which the parameter value will be copied to. * @param len The length of the buffer \p value * @retval 0 Parameter \p key was found and value was copied to \p value * @reval <>0 Kernel was not booted with parameter \p key */ int kernel_get_cmdline_param(const char *param, char *buf, size_t len); /** Get the version of the kernel. */ int kernel_get_version(struct version *v); /** Checks if a kernel module is loaded * * @param module the name of the module * @retval 0 Module is loaded. * @reval <>0 Module is not loaded. */ int kernel_module_loaded(const char *module); /** Load kernel module via modprobe */ int kernel_module_load(const char *module); /** Set parameter of loaded kernel module */ int kernel_module_set_param(const char *module, const char *param, const char *value); /** Get cacheline size in bytes */ int kernel_get_cacheline_size(); /** Get the size of a standard page in bytes. */ int kernel_get_page_size(); /** Get the size of a huge page in bytes. */ int kernel_get_hugepage_size(); /** Set SMP affinity of IRQ */ int kernel_irq_setaffinity(unsigned irq, uintmax_t new, uintmax_t *old); /** @} */