sparc-isr-install.c File Reference

This source file contains the SPARC-specific implementation of _CPU_ISR_install_raw_handler() and _CPU_ISR_install_vector(). More...

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

Macros
#define	HIGH_BITS_MASK   0xFFFFFC00
#define	HIGH_BITS_SHIFT   10
#define	LOW_BITS_MASK   0x000003FF

Functions
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
const CPU_Trap_table_entry	_CPU_Trap_slot_template

Detailed Description

This source file contains the SPARC-specific implementation of _CPU_ISR_install_raw_handler() and _CPU_ISR_install_vector().

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:

= {
  0xa1480000,      
  0x29000000,      
  0x81c52000,      
  0xa6102000       
}

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.