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| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/spu/spu_mfcio.h | 28 |
2 files changed, 33 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index bd4b67b..f38c298 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 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 all type qualifiers from element type to vector type. diff --git a/gcc/config/spu/spu_mfcio.h b/gcc/config/spu/spu_mfcio.h index 8423b9e..b0d3cd5 100644 --- a/gcc/config/spu/spu_mfcio.h +++ b/gcc/config/spu/spu_mfcio.h @@ -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 */ |