aa64cpu.c File Reference

#include <stdint.h>
#include <Hal/AA64/aa64lowlevel.h>
#include <Hal/AA64/aa64cpu.h>
#include <Hal/AA64/vector.h>
#include <Hal/AA64/gic.h>
#include <aucon.h>
#include <Hal/basicacpi.h>
#include <Drivers/uart.h>
#include <Drivers/rtcmmio.h>
#include <kernelAA64.h>
#include <Board/board.h>

Include dependency graph for aa64cpu.c:

Macros
#define	CACHE_LINE_SIZE   64
#define	SUBSECONDS_PER_SECOND   1000000

Functions
uint64_t	AA64GetPhysicalTimerCount ()
void	AA64FPUNeonEnable ()
	AA64FPUNeonEnable – initialize FPU and NEON feature.
void	AA64ClockInitialize ()
	AA64ClockInitialize – initialize the clock.
void	aa64_data_cache_clean_range (void *addr, size_t size)
uint32_t	get_cache_line_sz ()
void	aa64_dc_cvac_range (void *addr, size_t sz)
void	aa64_dc_ivac_range (void *addr, size_t sz)
void	AA64CPUImplementer (uint32_t midr)
void	updateTicks (uint64_t ticks, uint64_t *timerTick, uint64_t *timerSubticks)
int	aa64_gettimeofday (timeval *t)
uint64_t	aa64_now ()
int	aa64_settimeofday (timeval *t)
void	aa64_calculate_ticks (uint64_t seconds, uint64_t subsec, uint64_t *out_seconds, uint64_t *out_subsec)
	aa64_calculate_ticks – calculate the number of ticks from given milliseconds
void	AA64SleepUS (uint32_t us)
	AA64SleepUS – sleep for sometimes.
void	AA64SleepMS (uint32_t ms)
	AA64SleepMS – sleep for sometimes.
void	enableAlignCheck ()
void	AA64CpuInitialize ()
	AA64CpuInitialize – initialize aa64 cpu.
void	AA64TimerSetup ()
void	AA64CPUPostInitialize (KERNEL_BOOT_INFO *info)
	AA64CPUPostInitialize – initilaize post cpu requirements.
uint64_t	AA64CPUGetFreqencyHz ()

Variables
uint64_t	basisTime
uint64_t	cpuFrequency
uint64_t	bootTime

Detailed Description

BSD 2-Clause License

Copyright (c) 2022-2025, Manas Kamal Choudhury All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Macro Definition Documentation

CACHE_LINE_SIZE

#define CACHE_LINE_SIZE   64

SUBSECONDS_PER_SECOND

#define SUBSECONDS_PER_SECOND   1000000

Function Documentation

aa64_calculate_ticks()

void aa64_calculate_ticks	(	uint64_t	seconds,
		uint64_t	subsec,
		uint64_t *	out_seconds,
		uint64_t *	out_subsec
	)

aa64_calculate_ticks – calculate the number of ticks from given milliseconds

Parameters

seconds	– amount of seconds
out_milliseconds	– where to store the number of ticks

aa64_data_cache_clean_range()

void aa64_data_cache_clean_range	(	void *	addr,
		size_t	size
	)

aa64_dc_cvac_range()

void aa64_dc_cvac_range	(	void *	addr,
		size_t	sz
	)

aa64_dc_ivac_range()

void aa64_dc_ivac_range	(	void *	addr,
		size_t	sz
	)

aa64_gettimeofday()

int aa64_gettimeofday

(

timeval *

t

)

aa64_now()

uint64_t aa64_now

(

)

aa64_settimeofday()

int aa64_settimeofday

(

timeval *

t

)

AA64ClockInitialize()

void AA64ClockInitialize

(

)

AA64ClockInitialize – initialize the clock.

AA64CPUGetFreqencyHz()

uint64_t AA64CPUGetFreqencyHz

(

)

AA64CPUImplementer()

void AA64CPUImplementer

(

uint32_t

midr

)

AA64CpuInitialize()

void AA64CpuInitialize

(

)

AA64CpuInitialize – initialize aa64 cpu.

AA64CPUPostInitialize()

void AA64CPUPostInitialize

(

KERNEL_BOOT_INFO *

info

)

AA64CPUPostInitialize – initilaize post cpu requirements.

Parameters

info	– Pointer to KERNEL BOOT INFORMATIONs

AA64FPUNeonEnable()

void AA64FPUNeonEnable

(

)

AA64FPUNeonEnable – initialize FPU and NEON feature.

AA64GetPhysicalTimerCount()

uint64_t AA64GetPhysicalTimerCount

(

)

AA64SleepMS()

void AA64SleepMS

(

uint32_t

ms

)

AA64SleepMS – sleep for sometimes.

Parameters

ms	– milliseconds to sleep

AA64SleepUS()

void AA64SleepUS

(

uint32_t

us

)

AA64SleepUS – sleep for sometimes.

Parameters

us	– microseconds to sleep

AA64TimerSetup()

void AA64TimerSetup

(

)

enableAlignCheck()

void enableAlignCheck ( )

extern

get_cache_line_sz()

uint32_t get_cache_line_sz

(

)

updateTicks()

void updateTicks	(	uint64_t	ticks,
		uint64_t *	timerTick,
		uint64_t *	timerSubticks
	)

Variable Documentation

basisTime

uint64_t basisTime

bootTime

uint64_t bootTime

cpuFrequency

uint64_t cpuFrequency