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      1 /*
      2  * Copyright (c) 2016-2017, ARM Limited and Contributors. All rights reserved.
      3  *
      4  * SPDX-License-Identifier: BSD-3-Clause
      5  */
      6 
      7 #ifndef GIC_COMMON_PRIVATE_H_
      8 #define GIC_COMMON_PRIVATE_H_
      9 
     10 #include <gic_common.h>
     11 #include <mmio.h>
     12 #include <stdint.h>
     13 
     14 /*******************************************************************************
     15  * GIC Distributor interface register accessors that are common to GICv3 & GICv2
     16  ******************************************************************************/
     17 static inline unsigned int gicd_read_ctlr(uintptr_t base)
     18 {
     19 	return mmio_read_32(base + GICD_CTLR);
     20 }
     21 
     22 static inline unsigned int gicd_read_typer(uintptr_t base)
     23 {
     24 	return mmio_read_32(base + GICD_TYPER);
     25 }
     26 
     27 static inline unsigned int gicd_read_iidr(uintptr_t base)
     28 {
     29 	return mmio_read_32(base + GICD_IIDR);
     30 }
     31 
     32 static inline void gicd_write_ctlr(uintptr_t base, unsigned int val)
     33 {
     34 	mmio_write_32(base + GICD_CTLR, val);
     35 }
     36 
     37 /*******************************************************************************
     38  * GIC Distributor function prototypes for accessing entire registers.
     39  * Note: The raw register values correspond to multiple interrupt IDs and
     40  * the number of interrupt IDs involved depends on the register accessed.
     41  ******************************************************************************/
     42 unsigned int gicd_read_igroupr(uintptr_t base, unsigned int id);
     43 unsigned int gicd_read_isenabler(uintptr_t base, unsigned int id);
     44 unsigned int gicd_read_icenabler(uintptr_t base, unsigned int id);
     45 unsigned int gicd_read_ispendr(uintptr_t base, unsigned int id);
     46 unsigned int gicd_read_icpendr(uintptr_t base, unsigned int id);
     47 unsigned int gicd_read_isactiver(uintptr_t base, unsigned int id);
     48 unsigned int gicd_read_icactiver(uintptr_t base, unsigned int id);
     49 unsigned int gicd_read_ipriorityr(uintptr_t base, unsigned int id);
     50 unsigned int gicd_read_icfgr(uintptr_t base, unsigned int id);
     51 unsigned int gicd_read_nsacr(uintptr_t base, unsigned int id);
     52 void gicd_write_igroupr(uintptr_t base, unsigned int id, unsigned int val);
     53 void gicd_write_isenabler(uintptr_t base, unsigned int id, unsigned int val);
     54 void gicd_write_icenabler(uintptr_t base, unsigned int id, unsigned int val);
     55 void gicd_write_ispendr(uintptr_t base, unsigned int id, unsigned int val);
     56 void gicd_write_icpendr(uintptr_t base, unsigned int id, unsigned int val);
     57 void gicd_write_isactiver(uintptr_t base, unsigned int id, unsigned int val);
     58 void gicd_write_icactiver(uintptr_t base, unsigned int id, unsigned int val);
     59 void gicd_write_ipriorityr(uintptr_t base, unsigned int id, unsigned int val);
     60 void gicd_write_icfgr(uintptr_t base, unsigned int id, unsigned int val);
     61 void gicd_write_nsacr(uintptr_t base, unsigned int id, unsigned int val);
     62 
     63 /*******************************************************************************
     64  * GIC Distributor function prototypes for accessing the GIC registers
     65  * corresponding to a single interrupt ID. These functions use bitwise
     66  * operations or appropriate register accesses to modify or return
     67  * the bit-field corresponding the single interrupt ID.
     68  ******************************************************************************/
     69 unsigned int gicd_get_igroupr(uintptr_t base, unsigned int id);
     70 void gicd_set_igroupr(uintptr_t base, unsigned int id);
     71 void gicd_clr_igroupr(uintptr_t base, unsigned int id);
     72 void gicd_set_isenabler(uintptr_t base, unsigned int id);
     73 void gicd_set_icenabler(uintptr_t base, unsigned int id);
     74 void gicd_set_ispendr(uintptr_t base, unsigned int id);
     75 void gicd_set_icpendr(uintptr_t base, unsigned int id);
     76 unsigned int gicd_get_isactiver(uintptr_t base, unsigned int id);
     77 void gicd_set_isactiver(uintptr_t base, unsigned int id);
     78 void gicd_set_icactiver(uintptr_t base, unsigned int id);
     79 void gicd_set_ipriorityr(uintptr_t base, unsigned int id, unsigned int pri);
     80 void gicd_set_icfgr(uintptr_t base, unsigned int id, unsigned int cfg);
     81 
     82 #endif /* GIC_COMMON_PRIVATE_H_ */
     83