1 /* 2 * Copyright (c) 2016, Linaro Limited 3 * Copyright (c) 2014, STMicroelectronics International N.V. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright notice, 10 * this list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright notice, 13 * this list of conditions and the following disclaimer in the documentation 14 * and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef __DRIVERS_GIC_H 30 #define __DRIVERS_GIC_H 31 #include <types_ext.h> 32 #include <kernel/interrupt.h> 33 34 #define GIC_DIST_REG_SIZE 0x10000 35 #define GIC_CPU_REG_SIZE 0x10000 36 37 struct gic_data { 38 vaddr_t gicc_base; 39 vaddr_t gicd_base; 40 size_t max_it; 41 struct itr_chip chip; 42 }; 43 44 /* 45 * The two gic_init_* functions initializes the struct gic_data which is 46 * then used by the other functions. 47 */ 48 49 void gic_init(struct gic_data *gd, vaddr_t gicc_base, vaddr_t gicd_base); 50 /* initial base address only */ 51 void gic_init_base_addr(struct gic_data *gd, vaddr_t gicc_base, 52 vaddr_t gicd_base); 53 /* initial cpu if only, mainly use for secondary cpu setup cpu interface */ 54 void gic_cpu_init(struct gic_data *gd); 55 56 void gic_it_handle(struct gic_data *gd); 57 58 void gic_dump_state(struct gic_data *gd); 59 #endif /*__DRIVERS_GIC_H*/ 60