finished xact_finish and xact_abort transactors in coherence hub
This commit is contained in:
parent
ffb88467db
commit
1dcf25586f
@ -205,7 +205,9 @@ class CoherenceHubNoDir extends CoherenceHub {
|
||||
trackerList(i).io.xact_finish := free_arr.read(UFix(i))
|
||||
}
|
||||
|
||||
// In parallel, every cycle: nack conflicting transactions, free finished ones
|
||||
// Nack conflicting transaction init attempts
|
||||
val aborting = Wire() { Bits(width = NTILES) }
|
||||
val initiating = Wire() { Bits(width = NTILES) }
|
||||
for( j <- 0 until NTILES ) {
|
||||
val init = io.tiles(j).xact_init
|
||||
val abort = io.tiles(j).xact_abort
|
||||
@ -214,34 +216,16 @@ class CoherenceHubNoDir extends CoherenceHub {
|
||||
val t = trackerList(i).io
|
||||
conflicts(i) := t.busy(i) && coherenceConflict(t.addr, init.bits.address)
|
||||
}
|
||||
abort.valid := init.valid && (conflicts.orR || busy_arr.flatten().andR)
|
||||
aborting(j) := (conflicts.orR || busy_arr.flatten().andR)
|
||||
abort.valid := init.valid && aborting
|
||||
abort.bits.tileTransactionID := init.bits.tileTransactionID
|
||||
// TODO:
|
||||
// Reg(aborted) := (abort.ready && abort.valid)
|
||||
// Reg(allocated) : = had_priority(j) & !(abort.ready && abort.valid)
|
||||
// init.rdy = aborted || allocated
|
||||
init.ready := aborting(j) || initiating(j)
|
||||
}
|
||||
|
||||
/*
|
||||
// Todo: which implementation is clearer?
|
||||
for( i <- 0 until NGLOBAL_XACTS) {
|
||||
val t = trackerList(i).io
|
||||
val freed = Bits(width = NTILES)
|
||||
for( j <- 0 until NTILES ) {
|
||||
val finish = io.tiles(j).xact_finish
|
||||
free(j) := finish.valid && (UFix(i) === finish.bits.globalTransactionID)
|
||||
finish.ready := Bool(true) // finsh.pop()
|
||||
}
|
||||
t.xact_finish := freed.orR
|
||||
}
|
||||
*/
|
||||
|
||||
free_arr := Bits(0, width=NGLOBAL_XACTS)
|
||||
// Free finished transactions
|
||||
for( j <- 0 until NTILES ) {
|
||||
val finish = io.tiles(j).xact_finish
|
||||
when(finish.valid) {
|
||||
free_arr.write(finish.bits.globalTransactionID, Bool(true))
|
||||
}
|
||||
free_arr.write(finish.bits.globalTransactionID, finish.valid)
|
||||
finish.ready := Bool(true)
|
||||
}
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user