aa64lowlevel.h

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#ifndef __AA64_LOW_LEVEL_H__
#define __AA64_LOW_LEVEL_H__
 
#include <aurora.h>
 
/*
 * _getCurrentEL -- returns the current exception level
 */
AU_EXTERN AU_EXPORT uint64_t _getCurrentEL();
 
/*
 * read_ttbr0_el1 -- reads the current exception's
 * page mapping base address
 */
AU_EXTERN AU_EXPORT uint64_t read_ttbr0_el1();
 
/*
 * write_ttbr0_el1 -- writes current page mapping base
 * address
 */
AU_EXTERN AU_EXPORT void write_ttbr0_el1(uint64_t* base);
 
AU_EXTERN AU_EXPORT uint64_t read_ttbr1_el1();
 
AU_EXTERN AU_EXPORT void write_ttbr1_el1(uint64_t* base);
 
extern void write_both_ttbr(uint64_t physicalBase);
 
AU_EXTERN AU_EXPORT uint64_t read_tcr_el1();
 
AU_EXTERN AU_EXPORT void write_tcr_el1(uint64_t tcr);
 
AU_EXTERN AU_EXPORT uint64_t read_mair_el1();
 
AU_EXTERN AU_EXPORT void write_mair_el1(uint64_t mair);
 
/*
 * read_sctlr_el1 -- reads current system control
 * register of el1
 */
AU_EXTERN AU_EXPORT uint64_t read_sctlr_el1();
 
/*
 * write_sctlr_el1 -- write current system control
 * register of el1
 * @param sctlr -- system control register value
 */
AU_EXTERN AU_EXPORT void write_sctlr_el1(uint64_t sctlr);
 
/*
 * dsb_ish -- data syncronization barrier inner shareablity memory
 * flush, which makes the previous memory access visible for
 * multi core system
 */
AU_EXTERN AU_EXPORT void dsb_ish();
 
AU_EXTERN AU_EXPORT void dmb_ish();
 
AU_EXTERN AU_EXPORT void dmb_sy();
 
AU_EXTERN AU_EXPORT void dsb_sy_barrier();
 
AU_EXTERN AU_EXPORT void set_kstack(uint64_t stack);
 
/*
 * isb_flush -- instruction synchronization flush, flush previous
 * instruction set
 */
AU_EXTERN AU_EXPORT void isb_flush();
 
AU_EXTERN AU_EXPORT void tlb_flush(uint64_t virtul_addr);
 
AU_EXTERN AU_EXPORT void tlb_flush_vmalle1is();
/*
 * set_vbar_el1 -- set vector base address for el1
 * @param addr -- address of the vector table
 */
AU_EXTERN AU_EXPORT void set_vbar_el1(uint64_t addr);
 
AU_EXTERN AU_EXPORT uint64_t get_cntpct_el0();
 
AU_EXTERN AU_EXPORT uint64_t get_cntfrq_el0();
 
AU_EXTERN AU_EXPORT uint64_t get_cpacr_el1();
 
extern uint64_t get_cntv_ctl_el0();
 
AU_EXTERN AU_EXPORT void set_cpacr_el1(uint64_t val);
 
AU_EXTERN AU_EXPORT uint64_t read_esr_el1();
 
AU_EXTERN AU_EXPORT uint64_t read_far_el1();
 
AU_EXTERN AU_EXPORT uint64_t read_elr_el1();
 
extern void aa64_write_sysreg(const char* reg, uint64_t value);
 
extern uint64_t aa64_read_sysreg(const char* reg);
 
extern void enable_sre();
 
extern uint32_t read_icc_iidr();
 
extern void set_cntp_cval_el0(uint64_t val);
 
extern void set_cntp_ctl_el0(uint64_t val);
 
 
extern void setupTimerIRQ();
extern void suspendTimer();
extern uint64_t readTimerCtl();
 
extern uint64_t read_spsr_el1();
 
extern void enable_irqs();
 
extern void mask_irqs();
 
extern uint32_t read_icc_iar1_el1();
 
extern uint32_t read_midr();
extern uint64_t read_mpidr_el1();
extern uint64_t read_daif();
extern uint64_t read_spsel();
 
extern void aa64_enter_user(uint64_t stack, uint64_t entryAddr);
extern void aa64_svc_test();
extern void aa64_utest();
extern void dc_ivac(uint64_t address);
extern void aa64_store_fp(uint8_t* address, uint64_t* fpcr, uint64_t* fpsr);
extern void aa64_restore_fp(uint8_t* address, uint64_t* fpcr, uint64_t* fpsr);
extern void data_cache_flush(uint64_t* address);
extern void aa64_data_cache_clean_range(void* addr, size_t size);
#endif