diff options
Diffstat (limited to '')
| -rw-r--r-- | bsps/sparc/include/bsp/sparc-counter.h (renamed from cpukit/score/cpu/sparc/include/rtems/score/sparcimpl.h) | 74 |
1 files changed, 29 insertions, 45 deletions
diff --git a/cpukit/score/cpu/sparc/include/rtems/score/sparcimpl.h b/bsps/sparc/include/bsp/sparc-counter.h index d9be984179..bc4f2220e7 100644 --- a/cpukit/score/cpu/sparc/include/rtems/score/sparcimpl.h +++ b/bsps/sparc/include/bsp/sparc-counter.h @@ -3,13 +3,14 @@ /** * @file * - * @ingroup RTEMSScoreCPUSPARC + * @ingroup RTEMSBSPsSPARCShared * - * @brief This header file provides interfaces used by the SPARC port of RTEMS. + * @brief This header file provides interfaces of a CPU counter implementation + * for SPARC BSPs. */ /* - * Copyright (C) 2016, 2018 embedded brains GmbH & Co. KG + * Copyright (C) 2016, 2023 embedded brains GmbH & Co. KG * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -33,8 +34,8 @@ * POSSIBILITY OF SUCH DAMAGE. */ -#ifndef _RTEMS_SCORE_SPARCIMPL_H -#define _RTEMS_SCORE_SPARCIMPL_H +#ifndef _BSP_SPARC_COUNTER_H +#define _BSP_SPARC_COUNTER_H #include <rtems/score/cpu.h> @@ -44,62 +45,45 @@ extern "C" { struct timecounter; -/* - * Provides a mutable alias to _SPARC_Counter for use in - * _SPARC_Counter_initialize(). The _SPARC_Counter and _SPARC_Counter_mutable - * are defined via the SPARC_COUNTER_DEFINITION define. - */ -extern SPARC_Counter _SPARC_Counter_mutable; - void _SPARC_Counter_at_tick_clock( void ); CPU_Counter_ticks _SPARC_Counter_read_default( void ); -CPU_Counter_ticks _SPARC_Counter_read_up( void ); - -CPU_Counter_ticks _SPARC_Counter_read_down( void ); - CPU_Counter_ticks _SPARC_Counter_read_clock_isr_disabled( void ); CPU_Counter_ticks _SPARC_Counter_read_clock( void ); -CPU_Counter_ticks _SPARC_Counter_read_asr23( void ); - -uint32_t _SPARC_Get_timecount_up( struct timecounter * ); - -uint32_t _SPARC_Get_timecount_down( struct timecounter * ); - uint32_t _SPARC_Get_timecount_clock( struct timecounter * ); -uint32_t _SPARC_Get_timecount_asr23( struct timecounter * ); +typedef CPU_Counter_ticks ( *SPARC_Counter_read )( void ); /* - * Defines the _SPARC_Counter and _SPARC_Counter_mutable global variables. - * Place this define in the global file scope of the CPU counter support file - * of the BSP. + * The SPARC processors supported by RTEMS have no built-in CPU counter + * support. We have to use some hardware counter module for this purpose, for + * example the GPTIMER instance used by the clock driver. The BSP must provide + * an implementation of the CPU counter read function. This allows the use of + * dynamic hardware enumeration. */ +typedef struct { + SPARC_Counter_read read_isr_disabled; + SPARC_Counter_read read; + volatile const CPU_Counter_ticks *counter_register; + volatile const uint32_t *pending_register; + uint32_t pending_mask; + CPU_Counter_ticks accumulated; + CPU_Counter_ticks interval; +} SPARC_Counter; + +extern SPARC_Counter _SPARC_Counter; + #define SPARC_COUNTER_DEFINITION \ - __asm__ ( \ - "\t.global\t_SPARC_Counter\n" \ - "\t.global\t_SPARC_Counter_mutable\n" \ - "\t.section\t.data._SPARC_Counter,\"aw\",@progbits\n" \ - "\t.align\t4\n" \ - "\t.type\t_SPARC_Counter, #object\n" \ - "\t.size\t_SPARC_Counter, 28\n" \ - "_SPARC_Counter:\n" \ - "_SPARC_Counter_mutable:\n" \ - "\t.long\t_SPARC_Counter_read_default\n" \ - "\t.long\t_SPARC_Counter_read_default\n" \ - "\t.long\t0\n" \ - "\t.long\t0\n" \ - "\t.long\t0\n" \ - "\t.long\t0\n" \ - "\t.long\t0\n" \ - "\t.previous\n" \ - ) + SPARC_Counter _SPARC_Counter = { \ + .read_isr_disabled = _SPARC_Counter_read_default, \ + .read = _SPARC_Counter_read_default \ + } #ifdef __cplusplus } #endif /* __cplusplus */ -#endif /* _RTEMS_SCORE_SPARCIMPL_H */ +#endif /* _BSP_SPARC_COUNTER_H */ |