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refactor: 大致完成cpu的重构

This commit is contained in:
Liphen 2024-01-23 13:08:06 +08:00
parent 1effd2929a
commit 8b4f9c71dd
2 changed files with 5 additions and 8 deletions
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12
chisel/playground/src/Core.scala
View File

@ -87,15 +87,13 @@ class Core(implicit val cpuConfig: CpuConfig) extends Module {
decodeUnit.csr <> csr.decodeUnit
decodeUnit.executeStage <> executeStage.decodeUnit
executeStage.ctrl.clear(0) := ctrl.memoryUnit.flush ||
for (i <- 0 until (cpuConfig.commitNum)) {
executeStage.ctrl.clear(i) := ctrl.memoryUnit.flush ||
ctrl.executeUnit.do_flush && ctrl.executeUnit.allow_to_go ||
!ctrl.decodeUnit.allow_to_go && ctrl.executeUnit.allow_to_go
executeStage.ctrl.clear(1) := ctrl.memoryUnit.flush ||
ctrl.executeUnit.do_flush && decodeUnit.instFifo.allow_to_go(1) ||
!decodeUnit.instFifo.allow_to_go(1) && ctrl.executeUnit.allow_to_go
executeStage.ctrl.allow_to_go(0) := ctrl.executeUnit.allow_to_go
executeStage.ctrl.allow_to_go(1) := decodeUnit.instFifo.allow_to_go(1)
!decodeUnit.instFifo.allow_to_go(i) && ctrl.executeUnit.allow_to_go
executeStage.ctrl.allow_to_go(i) := decodeUnit.instFifo.allow_to_go(i)
}
executeUnit.executeStage <> executeStage.executeUnit
executeUnit.csr <> csr.executeUnit
executeUnit.memoryStage <> memoryStage.executeUnit

1
chisel/playground/src/ctrl/Ctrl.scala
View File

@ -23,7 +23,6 @@ class Ctrl(implicit val cpuConfig: CpuConfig) extends Module {
(io.decodeUnit.inst0.src1.ren && io.decodeUnit.inst0.src1.raddr === io.executeUnit.inst(1).reg_waddr ||
io.decodeUnit.inst0.src2.ren && io.decodeUnit.inst0.src2.raddr === io.executeUnit.inst(1).reg_waddr)
val lw_stall = inst0_lw_stall || inst1_lw_stall
// TODO: 这里的stall信号可以改进，尝试让前后端完全解耦
val longest_stall =
io.executeUnit.fu.stall || io.cacheCtrl.iCache_stall || io.memoryUnit.mem_stall