1 /* 2 * Copyright(c) 2015 EZchip Technologies. 3 * 4 * This program is free software; you can redistribute it and/or modify it 5 * under the terms and conditions of the GNU General Public License, 6 * version 2, as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope it will be useful, but WITHOUT 9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 11 * more details. 12 * 13 * The full GNU General Public License is included in this distribution in 14 * the file called "COPYING". 15 */ 16 17 #include <linux/sched.h> 18 #include <asm/processor.h> 19 #include <plat/ctop.h> 20 dp_save_restore(struct task_struct * prev,struct task_struct * next)21void dp_save_restore(struct task_struct *prev, struct task_struct *next) 22 { 23 struct eznps_dp *prev_task_dp = &prev->thread.dp; 24 struct eznps_dp *next_task_dp = &next->thread.dp; 25 26 /* Here we save all Data Plane related auxiliary registers */ 27 prev_task_dp->eflags = read_aux_reg(CTOP_AUX_EFLAGS); 28 write_aux_reg(CTOP_AUX_EFLAGS, next_task_dp->eflags); 29 30 prev_task_dp->gpa1 = read_aux_reg(CTOP_AUX_GPA1); 31 write_aux_reg(CTOP_AUX_GPA1, next_task_dp->gpa1); 32 } 33
