riscv/rocket-chip
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amo_shift_bits -> amo_shift_bytes

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This commit is contained in:
Henry Cook
2015-11-16 19:07:58 -08:00
parent 64aaf71b06
commit 0290635454
2 changed files with 8 additions and 7 deletions
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10
uncore/src/main/scala/cache.scala
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@ -541,7 +541,7 @@ class L2AcquireTracker(trackerId: Int)(implicit p: Parameters) extends L2XactTra
val xact_old_meta = Reg{ new L2Metadata }
val pending_coh = Reg{ xact_old_meta.coh }
val xact_allocate = Reg{ Bool() }
val xact_amo_shift_bits = Reg{ UInt() }
val xact_amo_shift_bytes = Reg{ UInt() }
val xact_op_code = Reg{ UInt() }
val xact_addr_byte = Reg{ UInt() }
val xact_op_size = Reg{ UInt() }
@ -629,12 +629,12 @@ class L2AcquireTracker(trackerId: Int)(implicit p: Parameters) extends L2XactTra
def mergeData(dataBits: Int)(beat: UInt, incoming: UInt) {
val old_data = incoming // Refilled, written back, or de-cached data
val new_data = data_buffer(beat) // Newly Put data is already in the buffer
amoalu.io.lhs := old_data >> xact_amo_shift_bits
amoalu.io.rhs := new_data >> xact_amo_shift_bits
amoalu.io.lhs := old_data >> (xact_amo_shift_bytes << 3)
amoalu.io.rhs := new_data >> (xact_amo_shift_bytes << 3)
val wmask = FillInterleaved(8, wmask_buffer(beat))
data_buffer(beat) := ~wmask & old_data |
wmask & Mux(xact.isBuiltInType(Acquire.putAtomicType),
amoalu.io.out << xact_amo_shift_bits,
amoalu.io.out << (xact_amo_shift_bytes << 3),
new_data)
wmask_buffer(beat) := ~UInt(0, wmask_buffer.head.getWidth)
when(xact.is(Acquire.putAtomicType) && xact.addr_beat === beat) { amo_result := old_data }
@ -853,7 +853,7 @@ class L2AcquireTracker(trackerId: Int)(implicit p: Parameters) extends L2XactTra
when(state === s_idle && io.inner.acquire.valid) {
xact_addr_block := io.iacq().addr_block
xact_allocate := io.iacq().allocate()
xact_amo_shift_bits := io.iacq().amo_shift_bits()
xact_amo_shift_bytes := io.iacq().amo_shift_bytes()
xact_op_code := io.iacq().op_code()
xact_addr_byte := io.iacq().addr_byte()
xact_op_size := io.iacq().op_size()