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spu_mfcio.h (mfc_begin_critical_section): New function.

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* config/spu/spu_mfcio.h (mfc_begin_critical_section): New function.
	(mfc_end_critical_section): Likewise.

From-SVN: r139570
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Ulrich Weigand 2008-08-25 18:54:38 +00:00 committed by Ulrich Weigand
parent 4f538d4277
commit b704f034f4
2 changed files with 33 additions and 0 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2008-08-25 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
* config/spu/spu_mfcio.h (mfc_begin_critical_section): New function.
(mfc_end_critical_section): Likewise.
2008-08-25 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
* config/rs6000/rs6000.c (rs6000_handle_altivec_attribute): Propagate

28
gcc/config/spu/spu_mfcio.h
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@ -289,6 +289,34 @@ typedef struct mfc_list_element {
#define spu_write_srr0(srr0) spu_writech(SPU_WrSRR0,srr0)
#define spu_read_srr0() spu_readch(SPU_RdSRR0)
/* Interrupt-Safe Critical Sections */
static __inline__ unsigned int mfc_begin_critical_section (void)
__attribute__ ((__always_inline__));
static __inline__ unsigned int
mfc_begin_critical_section (void)
{
#ifdef SPU_MFCIO_INTERRUPT_SAFE
unsigned int __status = spu_read_machine_status ();
spu_idisable ();
return __status;
#else
return 0;
#endif
}
static __inline__ void mfc_end_critical_section (unsigned int)
__attribute__ ((__always_inline__));
static __inline__ void
mfc_end_critical_section (unsigned int __status __attribute__ ((__unused__)))
{
#ifdef SPU_MFCIO_INTERRUPT_SAFE
if (__status & 1)
spu_ienable ();
#endif
}
/* MFC Tag Manager */