1 /* 2 * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * Redistributions of source code must retain the above copyright notice, this 8 * list of conditions and the following disclaimer. 9 * 10 * Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 14 * Neither the name of ARM nor the names of its contributors may be used 15 * to endorse or promote products derived from this software without specific 16 * prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef GIC_COMMON_PRIVATE_H_ 32 #define GIC_COMMON_PRIVATE_H_ 33 34 #include <gic_common.h> 35 #include <mmio.h> 36 #include <stdint.h> 37 38 /******************************************************************************* 39 * GIC Distributor interface register accessors that are common to GICv3 & GICv2 40 ******************************************************************************/ 41 static inline unsigned int gicd_read_ctlr(uintptr_t base) 42 { 43 return mmio_read_32(base + GICD_CTLR); 44 } 45 46 static inline unsigned int gicd_read_typer(uintptr_t base) 47 { 48 return mmio_read_32(base + GICD_TYPER); 49 } 50 51 static inline unsigned int gicd_read_iidr(uintptr_t base) 52 { 53 return mmio_read_32(base + GICD_IIDR); 54 } 55 56 static inline void gicd_write_ctlr(uintptr_t base, unsigned int val) 57 { 58 mmio_write_32(base + GICD_CTLR, val); 59 } 60 61 /******************************************************************************* 62 * GIC Distributor function prototypes for accessing entire registers. 63 * Note: The raw register values correspond to multiple interrupt IDs and 64 * the number of interrupt IDs involved depends on the register accessed. 65 ******************************************************************************/ 66 unsigned int gicd_read_igroupr(uintptr_t base, unsigned int id); 67 unsigned int gicd_read_isenabler(uintptr_t base, unsigned int id); 68 unsigned int gicd_read_icenabler(uintptr_t base, unsigned int id); 69 unsigned int gicd_read_ispendr(uintptr_t base, unsigned int id); 70 unsigned int gicd_read_icpendr(uintptr_t base, unsigned int id); 71 unsigned int gicd_read_isactiver(uintptr_t base, unsigned int id); 72 unsigned int gicd_read_icactiver(uintptr_t base, unsigned int id); 73 unsigned int gicd_read_ipriorityr(uintptr_t base, unsigned int id); 74 unsigned int gicd_read_icfgr(uintptr_t base, unsigned int id); 75 unsigned int gicd_read_nsacr(uintptr_t base, unsigned int id); 76 void gicd_write_igroupr(uintptr_t base, unsigned int id, unsigned int val); 77 void gicd_write_isenabler(uintptr_t base, unsigned int id, unsigned int val); 78 void gicd_write_icenabler(uintptr_t base, unsigned int id, unsigned int val); 79 void gicd_write_ispendr(uintptr_t base, unsigned int id, unsigned int val); 80 void gicd_write_icpendr(uintptr_t base, unsigned int id, unsigned int val); 81 void gicd_write_isactiver(uintptr_t base, unsigned int id, unsigned int val); 82 void gicd_write_icactiver(uintptr_t base, unsigned int id, unsigned int val); 83 void gicd_write_ipriorityr(uintptr_t base, unsigned int id, unsigned int val); 84 void gicd_write_icfgr(uintptr_t base, unsigned int id, unsigned int val); 85 void gicd_write_nsacr(uintptr_t base, unsigned int id, unsigned int val); 86 87 /******************************************************************************* 88 * GIC Distributor function prototypes for accessing the GIC registers 89 * corresponding to a single interrupt ID. These functions use bitwise 90 * operations or appropriate register accesses to modify or return 91 * the bit-field corresponding the single interrupt ID. 92 ******************************************************************************/ 93 unsigned int gicd_get_igroupr(uintptr_t base, unsigned int id); 94 void gicd_set_igroupr(uintptr_t base, unsigned int id); 95 void gicd_clr_igroupr(uintptr_t base, unsigned int id); 96 void gicd_set_isenabler(uintptr_t base, unsigned int id); 97 void gicd_set_icenabler(uintptr_t base, unsigned int id); 98 void gicd_set_ispendr(uintptr_t base, unsigned int id); 99 void gicd_set_icpendr(uintptr_t base, unsigned int id); 100 void gicd_set_isactiver(uintptr_t base, unsigned int id); 101 void gicd_set_icactiver(uintptr_t base, unsigned int id); 102 void gicd_set_ipriorityr(uintptr_t base, unsigned int id, unsigned int pri); 103 104 #endif /* GIC_COMMON_PRIVATE_H_ */ 105