cpu.c File Reference

SPARC64 CPU Dependent Source. More...

#include <rtems/score/cpuimpl.h>
#include <rtems/score/isr.h>
#include <rtems/score/tls.h>
#include <rtems/rtems/cache.h>

Macros
#define	HI_BITS_SHIFT   10
#define	HM_BITS_SHIFT   32
#define	HH_BITS_SHIFT   42
#define	IMM_MASK   0x000003FF
#define	HH_BITS_MASK   0xFFFFFC0000000000
#define	HM_BITS_MASK   0x000003FF00000000
#define	HI_BITS_MASK   0x00000000FFFFFC00
#define	LO_BITS_MASK   0x00000000000003FF

Functions
void	_CPU_Initialize (void)
	CPU initialization.
void	_CPU_Context_Initialize (Context_Control *the_context, void *stack_base, uint32_t size, uint32_t new_level, void *entry_point, bool is_fp, void *tls_area)
uint32_t	_CPU_ISR_Get_level (void)
	Returns the interrupt level of the executing thread.
void	_CPU_ISR_install_raw_handler (uint32_t vector, CPU_ISR_raw_handler new_handler, CPU_ISR_raw_handler *old_handler)
	SPARC specific raw ISR installer.
void	_CPU_ISR_install_vector (uint32_t vector, CPU_ISR_handler new_handler, CPU_ISR_handler *old_handler)
	SPARC specific RTEMS ISR installer.

Variables
volatile uint32_t	_CPU_ISR_Dispatch_disable
const CPU_Trap_table_entry	_CPU_Trap_slot_template

Detailed Description

SPARC64 CPU Dependent Source.

Function Documentation

_CPU_ISR_install_raw_handler()

void _CPU_ISR_install_raw_handler	(	uint32_t	vector,
		CPU_ISR_raw_handler	new_handler,
		CPU_ISR_raw_handler *	old_handler
	)

SPARC specific raw ISR installer.

This routine installs new_handler to be directly called from the trap table.

Parameters

[in]	vector	is the vector number
[in]	new_handler	is the new ISR handler
[in]	old_handler	will contain the old ISR handler

Variable Documentation

_CPU_Trap_slot_template

const CPU_Trap_table_entry _CPU_Trap_slot_template

Initial value:

= {
  0x89508000,   
  0x05000000,   
  0x8410a000,   
  0x8528b020,   
  0x07000000,   
  0x8610c002,   
  0x81c0e000, 
  0x84102000  
}

This is the set of opcodes for the instructions loaded into a trap table entry. The routine which installs a handler is responsible for filling in the fields for the _handler address and the _vector trap type.

The constants following this structure are masks for the fields which must be filled in when the handler is installed.