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2001-11-28 Joel Sherrill <joel@OARcorp.com>,

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This was tracked as PR91.
	* rtems/score/cpu.h: Added CPU_PROVIDES_ISR_IS_IN_PROGRESS macro which
	is used to specify if the port uses the standard macro for this (FALSE).
	A TRUE setting indicates the port provides its own implementation.
	* rtems/score/c_isr.inl: Deleted and contents merged into cpu.c.
	* cpu.c: Received contents of c_isr.inl.
	* Makefile.am: Deleted reference to c_isr.inl.
This commit is contained in:
Joel Sherrill
2001-11-28 18:15:51 +00:00
parent c1b61c5906
commit 75ad73760f
18 changed files with 146 additions and 22 deletions
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15
c/src/lib/libcpu/powerpc/new-exceptions/cpu.c
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@@ -110,6 +110,19 @@ void _CPU_Install_interrupt_stack( void )
{
}
/*PAGE
*
* This is the PowerPC specific implementation of the routine which
* returns TRUE if an interrupt is in progress.
*/
boolean _ISR_Is_in_progress( void )
{
register unsigned int isr_nesting_level;
/*
* Move from special purpose register 0 (mfspr SPRG0, r3)
*/
asm volatile ("mfspr %0, 272" : "=r" (isr_nesting_level));
return isr_nesting_level;
}