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test both cached and uncached cases in MixedAllocPutRegression

This commit is contained in:
Howard Mao 2016-06-14 17:01:18 -07:00
parent 1074c9fe6d
commit b7c0d0cb4d

View File

@ -182,50 +182,60 @@ class NoAllocPutHitRegression(implicit p: Parameters) extends Regression()(p) {
/** Make sure L2 does the right thing when multiple puts are sent for the
* same block, but only the first one has the alloc bit set. */
class MixedAllocPutRegression(implicit p: Parameters) extends Regression()(p) {
val (s_idle :: s_put_send :: s_put_wait ::
s_get_send :: s_get_wait :: s_done :: Nil) = Enum(Bits(), 6)
val (s_idle :: s_pf_send :: s_pf_wait :: s_put_send :: s_put_wait ::
s_get_send :: s_get_wait :: s_done :: Nil) = Enum(Bits(), 8)
val state = Reg(init = s_idle)
val put_data = Vec(
UInt("h0000000011111111"),
UInt("h2222222200000000"),
UInt("h3333333333333333"))
val put_wmask = Vec(UInt("h0f"), UInt("hf0"), UInt("hff"))
val put_beat = Vec(UInt(0), UInt(0), UInt(2))
/** We have to test two cases: one when the block is already cached
* and one when the block is not yet cached.
* We use prefetching to assure the first case. */
val test_data = Vec(
UInt("h2222222211111111"),
UInt("h3333333333333333"),
UInt("h4444444444444444"),
UInt("h5555555555555555"))
val test_alloc = Vec(Bool(false), Bool(false), Bool(true), Bool(false))
val test_block = Vec(
Seq.fill(2) { UInt(memStartBlock + 15) } ++
Seq.fill(2) { UInt(memStartBlock + 16) })
val test_beat = Vec(UInt(0), UInt(2), UInt(1), UInt(2))
val (put_acq_id, put_acq_done) = Counter(
state === s_put_send && io.mem.acquire.ready, put_data.size)
state === s_put_send && io.mem.acquire.ready, test_data.size)
val (put_gnt_cnt, put_gnt_done) = Counter(
state === s_put_wait && io.mem.grant.valid, put_data.size)
val get_data = Vec(UInt("h2222222211111111"), UInt("h3333333333333333"))
val get_beat = Vec(UInt(0), UInt(2))
state === s_put_wait && io.mem.grant.valid, test_data.size)
val (get_acq_id, get_acq_done) = Counter(
state === s_get_send && io.mem.acquire.ready, get_data.size)
state === s_get_send && io.mem.acquire.ready, test_data.size)
val (get_gnt_cnt, get_gnt_done) = Counter(
state === s_get_wait && io.mem.grant.valid, get_data.size)
state === s_get_wait && io.mem.grant.valid, test_data.size)
val blockAddr = memStartBlock + 15
val pf_acquire = PutPrefetch(
client_xact_id = UInt(0),
addr_block = UInt(memStartBlock + 15))
val put_acquire = Put(
client_xact_id = put_acq_id,
addr_block = UInt(blockAddr),
addr_beat = put_beat(put_acq_id),
data = put_data(put_acq_id),
wmask = put_wmask(put_acq_id),
alloc = (put_acq_id === UInt(0)))
addr_block = test_block(put_acq_id),
addr_beat = test_beat(put_acq_id),
data = test_data(put_acq_id),
wmask = Acquire.fullWriteMask,
alloc = test_alloc(put_acq_id))
val get_acquire = Get(
client_xact_id = get_acq_id,
addr_block = UInt(blockAddr),
addr_beat = get_beat(get_acq_id))
addr_block = test_block(get_acq_id),
addr_beat = test_beat(get_acq_id))
io.mem.acquire.valid := (state === s_put_send) || (state === s_get_send)
io.mem.acquire.bits := Mux(state === s_put_send, put_acquire, get_acquire)
io.mem.grant.ready := (state === s_put_wait) || (state === s_get_wait)
io.mem.acquire.valid := (state === s_pf_send) || (state === s_put_send) || (state === s_get_send)
io.mem.acquire.bits := MuxBundle(state, pf_acquire, Seq(
s_put_send -> put_acquire,
s_get_send -> get_acquire))
io.mem.grant.ready := (state === s_pf_wait) || (state === s_put_wait) || (state === s_get_wait)
when (state === s_idle && io.start) { state := s_put_send }
when (state === s_idle && io.start) { state := s_pf_send }
when (state === s_pf_send && io.mem.acquire.ready) { state := s_pf_wait }
when (state === s_pf_wait && io.mem.grant.valid) { state := s_put_send }
when (put_acq_done) { state := s_put_wait }
when (put_gnt_done) { state := s_get_send }
when (get_acq_done) { state := s_get_wait }
@ -234,7 +244,7 @@ class MixedAllocPutRegression(implicit p: Parameters) extends Regression()(p) {
io.finished := (state === s_done)
assert(state =/= s_get_wait || !io.mem.grant.valid ||
io.mem.grant.bits.data === get_data(io.mem.grant.bits.client_xact_id),
io.mem.grant.bits.data === test_data(io.mem.grant.bits.client_xact_id),
"MixedAllocPutRegression: data mismatch")
disableCache()