xref: /XiangShan/src/main/scala/xiangshan/backend/ctrlblock/LsInfo.scala (revision ac4d321d18df4775b9ddda83e77cf526a0b1ca67) 
1package xiangshan.backend.ctrlblock
2
3import org.chipsalliance.cde.config.Parameters
4import chisel3._
5import chisel3.util._
6import xiangshan.XSBundle
7import xiangshan.mem.LoadReplayCauses
8
9class DebugMdpInfo(implicit p: Parameters) extends XSBundle{
10  val ssid = UInt(SSIDWidth.W)
11  val waitAllStore = Bool()
12}
13
14class DebugLsInfo(implicit p: Parameters) extends XSBundle{
15  val s1_isTlbFirstMiss = Bool() // in s1
16  val s1_isLoadToLoadForward = Bool()
17  val s2_isBankConflict = Bool()
18  val s2_isDcacheFirstMiss = Bool() // in s2 (predicted result is in s1 when using WPU, real result is in s2)
19  val s2_isForwardFail = Bool() // in s2
20  val s3_isReplayFast = Bool()
21  val s3_isReplaySlow = Bool()
22  val s3_isReplayRS = Bool()
23  val s3_isReplay = Bool()
24  val replayCause = Vec(LoadReplayCauses.allCauses, Bool())
25  val replayCnt = UInt(XLEN.W)
26
27  def s1SignalEnable(ena: DebugLsInfo) = {
28    when(ena.s1_isTlbFirstMiss) { s1_isTlbFirstMiss := true.B }
29    when(ena.s1_isLoadToLoadForward) { s1_isLoadToLoadForward := true.B }
30  }
31
32  def s2SignalEnable(ena: DebugLsInfo) = {
33    when(ena.s2_isBankConflict) { s2_isBankConflict := true.B }
34    when(ena.s2_isDcacheFirstMiss) { s2_isDcacheFirstMiss := true.B }
35    when(ena.s2_isForwardFail) { s2_isForwardFail := true.B }
36  }
37  def s3SignalEnable(ena: DebugLsInfo) = {
38    when(ena.s3_isReplayFast) { s3_isReplayFast := true.B }
39    when(ena.s3_isReplaySlow) { s3_isReplaySlow := true.B }
40    when(ena.s3_isReplayRS) { s3_isReplayRS := true.B }
41    when(ena.s3_isReplay) {
42      s3_isReplay := true.B
43      replayCnt := replayCnt + 1.U
44      when((ena.replayCause.asUInt ^ replayCause.asUInt).orR) {
45        replayCause := ena.replayCause.zipWithIndex.map{ case (x, i) => x | replayCause(i) }
46      }
47    }
48  }
49}
50
51object DebugLsInfo {
52  def init(implicit p: Parameters): DebugLsInfo = {
53    val lsInfo = Wire(new DebugLsInfo)
54    lsInfo.s1_isTlbFirstMiss := false.B
55    lsInfo.s1_isLoadToLoadForward := false.B
56    lsInfo.s2_isBankConflict := false.B
57    lsInfo.s2_isDcacheFirstMiss := false.B
58    lsInfo.s2_isForwardFail := false.B
59    lsInfo.s3_isReplayFast := false.B
60    lsInfo.s3_isReplaySlow := false.B
61    lsInfo.s3_isReplayRS := false.B
62    lsInfo.s3_isReplay := false.B
63    lsInfo.replayCnt := 0.U
64    lsInfo.replayCause := Seq.fill(LoadReplayCauses.allCauses)(false.B)
65    lsInfo
66  }
67}
68
69class DebugLsInfoBundle(implicit p: Parameters) extends DebugLsInfo {
70  // unified processing at the end stage of load/store  ==> s2  ==> bug that will write error robIdx data
71  val s1_robIdx = UInt(log2Ceil(RobSize).W)
72  val s2_robIdx = UInt(log2Ceil(RobSize).W)
73  val s3_robIdx = UInt(log2Ceil(RobSize).W)
74}
75
76class DebugLSIO(implicit p: Parameters) extends XSBundle {
77  val debugLsInfo = Vec(backendParams.LduCnt + backendParams.HyuCnt + backendParams.StaCnt + backendParams.HyuCnt, Output(new DebugLsInfoBundle))
78}
79class LsTopdownInfo(implicit p: Parameters) extends XSBundle {
80  val s1 = new Bundle {
81    val robIdx = UInt(log2Ceil(RobSize).W)
82    val vaddr_valid = Bool()
83    val vaddr_bits = UInt(VAddrBits.W)
84  }
85  val s2 = new Bundle {
86    val robIdx = UInt(log2Ceil(RobSize).W)
87    val paddr_valid = Bool()
88    val paddr_bits = UInt(PAddrBits.W)
89    val cache_miss_en = Bool()
90    val first_real_miss = Bool()
91  }
92
93  def s1SignalEnable(ena: LsTopdownInfo) = {
94    when(ena.s1.vaddr_valid) {
95      s1.vaddr_valid := true.B
96      s1.vaddr_bits := ena.s1.vaddr_bits
97    }
98  }
99
100  def s2SignalEnable(ena: LsTopdownInfo) = {
101    when(ena.s2.paddr_valid) {
102      s2.paddr_valid := true.B
103      s2.paddr_bits := ena.s2.paddr_bits
104    }
105    when(ena.s2.cache_miss_en) {
106      s2.first_real_miss := ena.s2.first_real_miss
107    }
108  }
109}
110
111object LsTopdownInfo {
112  def init(implicit p: Parameters): LsTopdownInfo = 0.U.asTypeOf(new LsTopdownInfo)
113}