1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright(c) 2015 EZchip Technologies. 4 */ 5 6 #include <linux/sched.h> 7 #include <asm/processor.h> 8 #include <plat/ctop.h> 9 dp_save_restore(struct task_struct * prev,struct task_struct * next)10void dp_save_restore(struct task_struct *prev, struct task_struct *next) 11 { 12 struct eznps_dp *prev_task_dp = &prev->thread.dp; 13 struct eznps_dp *next_task_dp = &next->thread.dp; 14 15 /* Here we save all Data Plane related auxiliary registers */ 16 prev_task_dp->eflags = read_aux_reg(CTOP_AUX_EFLAGS); 17 write_aux_reg(CTOP_AUX_EFLAGS, next_task_dp->eflags); 18 19 prev_task_dp->gpa1 = read_aux_reg(CTOP_AUX_GPA1); 20 write_aux_reg(CTOP_AUX_GPA1, next_task_dp->gpa1); 21 } 22