Differential D19634 Diff 55376 head/sys/powerpc/powerpc/interrupt.c

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head/sys/powerpc/powerpc/interrupt.c

Show All 26 Lines
* $FreeBSD$		* $FreeBSD$
*/		*/

/*		/*
* Interrupts are dispatched to here from locore asm		* Interrupts are dispatched to here from locore asm
*/		*/

#include "opt_hwpmc_hooks.h"		#include "opt_hwpmc_hooks.h"
		#include "opt_platform.h"

#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */		#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */

#include <sys/param.h>		#include <sys/param.h>
#include <sys/systm.h>		#include <sys/systm.h>
#include <sys/bus.h>		#include <sys/bus.h>
#include <sys/interrupt.h>		#include <sys/interrupt.h>
#include <sys/kernel.h>		#include <sys/kernel.h>
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#include <machine/pcb.h>		#include <machine/pcb.h>
#include <machine/psl.h>		#include <machine/psl.h>
#include <machine/trap.h>		#include <machine/trap.h>
#include <machine/spr.h>		#include <machine/spr.h>
#include <machine/sr.h>		#include <machine/sr.h>

#include "pic_if.h"		#include "pic_if.h"

		#ifdef POWERNV
		int (hmi_handler)(struct trapframe );
		#endif

/*		/*
* A very short dispatch, to try and maximise assembler code use		* A very short dispatch, to try and maximise assembler code use
* between all exception types. Maybe 'true' interrupts should go		* between all exception types. Maybe 'true' interrupts should go
* here, and the trap code can come in separately		* here, and the trap code can come in separately
*/		*/
void		void
powerpc_interrupt(struct trapframe *framep)		powerpc_interrupt(struct trapframe *framep)
{		{
Show All 33 Lines	#ifdef HWPMC_HOOKS
case EXC_PERF:		case EXC_PERF:
critical_enter();		critical_enter();
KASSERT(pmc_intr != NULL, ("Performance exception, but no handler!"));		KASSERT(pmc_intr != NULL, ("Performance exception, but no handler!"));
(*pmc_intr)(framep);		(*pmc_intr)(framep);
if (pmc_hook && (PCPU_GET(curthread)->td_pflags & TDP_CALLCHAIN))		if (pmc_hook && (PCPU_GET(curthread)->td_pflags & TDP_CALLCHAIN))
pmc_hook(PCPU_GET(curthread), PMC_FN_USER_CALLCHAIN, framep);		pmc_hook(PCPU_GET(curthread), PMC_FN_USER_CALLCHAIN, framep);
critical_exit();		critical_exit();
break;		break;
		#endif

		#ifdef POWERNV
		case EXC_HMI:
		if (hmi_handler != 0 && hmi_handler(framep) == 0)
		break;
		/* If no handler, or failure to handle, just drop to trap. */
#endif		#endif

default:		default:
/* Re-enable interrupts if applicable. */		/* Re-enable interrupts if applicable. */
ee = framep->srr1 & PSL_EE;		ee = framep->srr1 & PSL_EE;
if (ee != 0)		if (ee != 0)
mtmsr(mfmsr() \| ee);		mtmsr(mfmsr() \| ee);
trap(framep);		trap(framep);
}		}
}		}