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/*
* tm27.h
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#ifndef _TMTEST27
#error "This is an RTEMS internal file you must not include directly."
#endif
#ifndef __tm27_h
#define __tm27_h
/*
* Stuff for Time Test 27
*/
#define MUST_WAIT_FOR_INTERRUPT 1
#define Install_tm27_vector( _handler ) \
set_vector( (_handler), PPC_IRQ_DECREMENTER, 1 )
#define Cause_tm27_intr() \
do { \
uint32_t _clicks = 1; \
asm volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \
} while (0)
#define Clear_tm27_intr() \
do { \
uint32_t _clicks = 0xffffffff; \
uint32_t _msr = 0; \
_ISR_Set_level( 0 ); \
asm volatile( "mfmsr %0 ;" : "=r" (_msr) : "r" (_msr) ); \
_msr &= ~0x8000; \
asm volatile( "mtmsr %0 ;" : "=r" (_msr) : "r" (_msr) ); \
asm volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \
} while (0)
#define Lower_tm27_intr() \
do { \
uint32_t _msr = 0; \
_ISR_Set_level( 0 ); \
asm volatile( "mfmsr %0 ;" : "=r" (_msr) : "r" (_msr) ); \
_msr |= 0x8002; \
asm volatile( "mtmsr %0 ;" : "=r" (_msr) : "r" (_msr) ); \
} while (0)
#endif
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