IBM PowerPC 604 User Manual page 161

Table 3-6. cache Actions {Continued}
Cache MESI
Action
Bus Bus
TT0-4 Rsv'n
Snoop
Action
WIM State Operation WIM
Response
(r\la) (r\la) sync SYNC xx1
01000 (nla) (None) or
The sync instruction completed.
SRO
(Note: This table does not give
an accurate representation of
what the sync instruction does.)
(nia)
(r\la) sync SYNC xx1 01000 (nla)
J;RTI:ivor Release the bus.
'ARTRV&§m
Retry the operation.
• I
(r\la)
(nla)
elelo EIEIO xx1 10000
(nla)
(None) or
The elelo instruction has
SRl5
completed.
(Note: This table does not give
an accurate representation of
what the elelo instruction does.)
(r\la) (nia) elelo EIEIO xx1
10000 (nla)
J;RTI:ivor
Release the bus.
Am'RV&§m
Retry the operation.
(nla) (nla) tlble TLB xx1
11000 (nla) (None) or Hold
cff
any new storage
invalidate
mm
instructions.
Wait for the completion of any
outstanding storage instructions
Invalidate the requested TLB
entry
(Note: This table does not
thoroughly characterize the tlble
instruction.)
(nla) (nla) tlble TLB xx1
11000 (nla)
ARTRY
or
Release the bus.
invalidate
'ARTRV&§m
Retry the operation
tlbsync TLBsync xx1
01001 (nla) (None) or The TLB sync instruction has
SRO
completed.
(Note: This table does not
thoroughly characterize the
tlbsync instruction.)
tlbsync TLBsync xx1
01001 (r\la) J;RTI:ivor Release the bus.
'ARTRV&§m
Retry the operation.
I Snoop-kill xx1 01100 None (None) No-op
I
Snoop-kill xx1
01100 Yes (None) Release reservation.
(and
reset)
ME Snoop-kill xx1 01100
None
(None) Mark cache block I.
s
ME Snoop-kill xx1 01100 Yes (None) Mark cache block I.
s
(and
Release reservation.
reset)
I Snoop- xx1 01010 None (None) No-op
read
I Snoop- xx1 01010 Yes
mm
No-op
read
3-38
PowerPC 604 RISC Microprocessor User's Manual