FUJITSU Implementation Supplement Fujitsu SPARC64 V - Manual (Page 69)

58 SPARC JPS1 Implementation Supplement: Fujitsu SPARC64 V • Release 1.0, 1 July 2002
TABLE A-7 describes prefetch variants implemented in SPARC64 V.
A.51 Read State Register
In SPARC64 V, an RDPCR instruction will generate a privileged_action exception if
PSTATE.PRIV = 0 and PCR.PRIV = 1. If PSTATE.PRIV = 0 and PCR.PRIV = 0,
RDPCR will not cause any access privilege violation exception (impl. dep. #250).
A.70 SHUTDOWN (VIS I)
In SPARC64 V, SHUTDOWN acts as a NOP in privileged mode (impl. dep. #206).
TABLE A-7 Prefetch Variants
fcn Fetch to: Status Description
0 L1D S
1 L2 S
2 L1D M
3 L2 M
4 — — NOP
5-15 reserved (SPARC V9) illegal_instruction exception is signalled.
16-19 implementation
dependent. NOP
20 L1D S If an access causes an mTLB miss,
fast_data_access_MMU_miss exception is signalled.
21 L2 S If an access causes an mTLB miss,
fast_data_access_MMU_miss exception is signalled.
22 L1D M If an access causes an mTLB miss,
fast_data_access_MMU_miss exception is signalled.
23 L2 M If an access causes an mTLB miss,
fast_data_access_MMU_miss exception is signalled.
24-31 implementation
dependent NOP