riscv/rocket-chip
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refactored vector exception handling interface

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This commit is contained in:
Yunsup Lee
2012-03-13 23:45:10 -07:00
parent b100544b25
commit 040d62f372
8 changed files with 91 additions and 90 deletions
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7
rocket/src/main/scala/consts.scala
View File

@@ -7,7 +7,7 @@ object Constants
{
val HAVE_RVC = false
val HAVE_FPU = true
val HAVE_VEC = true
val HAVE_VEC = false
val BR_N = UFix(0, 4);
val BR_EQ = UFix(1, 4);
@@ -144,11 +144,6 @@ object Constants
val PCR_VECBANK = UFix(18, 5);
val PCR_VECCFG = UFix(19, 5);
// temporaries for vector, these will go away
val PCR_VEC_BACKUP = UFix(29, 5)
val PCR_VEC_KILL = UFix(30, 5)
val PCR_VEC_HOLD = UFix(31, 5)
// definition of bits in PCR status reg
val SR_ET = 0; // enable traps
val SR_EF = 1; // enable floating point

8
rocket/src/main/scala/cpu.scala
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@@ -205,10 +205,10 @@ class rocketProc(resetSignal: Bool = null) extends Component(resetSignal)
vu.io.xcpt.exception := ctrl.io.vec_iface.exception
ctrl.io.vec_iface.exception_ack_valid := vu.io.xcpt.exception_ack_valid
vu.io.xcpt.exception_ack_ready := ctrl.io.vec_iface.exception_ack_ready
vu.io.xcpt.backup := dpath.io.vec_iface.backup
vu.io.xcpt.backup_addr := dpath.io.vec_iface.backup_addr.toUFix
vu.io.xcpt.kill := dpath.io.vec_iface.kill
vu.io.xcpt.hold := dpath.io.vec_iface.hold
vu.io.xcpt.evac := ctrl.io.vec_iface.evac
vu.io.xcpt.evac_addr := dpath.io.vec_iface.evac_addr.toUFix
vu.io.xcpt.kill := ctrl.io.vec_iface.kill
vu.io.xcpt.hold := ctrl.io.vec_iface.hold
// hooking up vector memory interface
val storegen = new StoreDataGen

6
rocket/src/main/scala/ctrl.scala
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@@ -306,7 +306,10 @@ object rocketCtrlDecode
VENQIMM1-> List(VEC_Y,Y,BR_N, REN_Y,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_RD,WB_ALU,REN_N,WEN_N,I_X, SYNC_N,N,N,N,Y,N),
VENQIMM2-> List(VEC_Y,Y,BR_N, REN_Y,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_RD,WB_ALU,REN_N,WEN_N,I_X, SYNC_N,N,N,N,Y,N),
VENQCNT-> List(VEC_Y,Y,BR_N, REN_Y,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_RD,WB_ALU,REN_N,WEN_N,I_X, SYNC_N,N,N,N,Y,N),
VWAITXCPT-> List(VEC_Y,Y,BR_N, REN_N,REN_N,A2_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X, SYNC_N,N,N,N,N,Y))
VXCPTEVAC-> List(VEC_Y,Y,BR_N, REN_N,REN_Y,A2_ZERO, DW_XPR,FN_ADD, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_RD,WB_ALU,REN_N,WEN_N,I_X, SYNC_N,N,N,N,Y,N),
VXCPTKILL-> List(VEC_Y,Y,BR_N, REN_N,REN_N,A2_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X, SYNC_N,N,N,N,Y,N),
VXCPTWAIT-> List(VEC_Y,Y,BR_N, REN_N,REN_N,A2_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X, SYNC_N,N,N,N,Y,Y),
VXCPTHOLD-> List(VEC_Y,Y,BR_N, REN_N,REN_N,A2_X, DW_X, FN_X, M_N,M_X, MT_X, N,MUL_X, N,DIV_X, WEN_N,WA_X, WB_X, REN_N,WEN_N,I_X, SYNC_N,N,N,N,Y,N))
}
class rocketCtrl extends Component
@@ -630,6 +633,7 @@ class rocketCtrl extends Component
vec.io.s := io.dpath.status(SR_S)
vec.io.sr_ev := io.dpath.status(SR_EV)
vec.io.exception := wb_reg_exception
vec.io.eret := wb_reg_eret
vec_replay = vec.io.replay
vec_stalld = vec.io.stalld // || id_vfence_cv && !vec.io.vfence_ready

127
rocket/src/main/scala/ctrl_vec.scala
View File

@@ -46,6 +46,10 @@ class ioCtrlVecInterface extends Bundle
val exception = Bool(OUTPUT)
val exception_ack_valid = Bool(INPUT)
val exception_ack_ready = Bool(OUTPUT)
val evac = Bool(OUTPUT)
val kill = Bool(OUTPUT)
val hold = Bool(OUTPUT)
}
class ioCtrlVec extends Bundle
@@ -55,6 +59,7 @@ class ioCtrlVec extends Bundle
val s = Bool(INPUT)
val sr_ev = Bool(INPUT)
val exception = Bool(INPUT)
val eret = Bool(INPUT)
val replay = Bool(OUTPUT)
val stalld = Bool(OUTPUT)
val vfence_ready = Bool(OUTPUT)
@@ -77,61 +82,64 @@ class rocketCtrlVec extends Component
// | | | | | | | | vpfcntq
// wen | | | | | | | | | pfq
// val vcmd vimm vimm2 | fn | | | | | | | | | | fence_cv
// | | | | | | | | | | | | | | | | | waitxcpt
// | | | | | | | | | | | | | | | | | xcptwait
// | | | | | | | | | | | | | | | | | |
List(N,VCMD_X, VIMM_X, VIMM2_X, N,VEC_X, N,N,N,N,N,N,N,N,N,N,N,N),Array(
VVCFGIVL-> List(Y,VCMD_I, VIMM_VLEN,VIMM2_X, Y,VEC_CFGVL,N,Y,Y,N,N,Y,Y,N,N,N,N,N),
VVCFG-> List(Y,VCMD_I, VIMM_VLEN,VIMM2_X, N,VEC_CFG, N,Y,Y,N,N,Y,Y,N,N,N,N,N),
VSETVL-> List(Y,VCMD_I, VIMM_VLEN,VIMM2_X, Y,VEC_VL, N,Y,Y,N,N,Y,Y,N,N,N,N,N),
VF-> List(Y,VCMD_I, VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,N,N,N,N,N,N,N),
VMVV-> List(Y,VCMD_TX,VIMM_X, VIMM2_X, N,VEC_FN_N, Y,Y,N,N,N,N,N,N,N,N,N,N),
VMSV-> List(Y,VCMD_TX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,N,N,N,N,N,N,N),
VFMVV-> List(Y,VCMD_TF,VIMM_X, VIMM2_X, N,VEC_FN_N, Y,Y,N,N,N,N,N,N,N,N,N,N),
FENCE_L_V-> List(Y,VCMD_F, VIMM_X, VIMM2_X, N,VEC_FN_N, N,Y,N,N,N,N,N,N,N,N,N,N),
FENCE_G_V-> List(Y,VCMD_F, VIMM_X, VIMM2_X, N,VEC_FN_N, N,Y,N,N,N,N,N,N,N,N,N,N),
FENCE_L_CV->List(Y,VCMD_F, VIMM_X, VIMM2_X, N,VEC_FN_N, N,N,N,N,N,N,N,N,N,N,Y,N),
FENCE_G_CV->List(Y,VCMD_F, VIMM_X, VIMM2_X, N,VEC_FN_N, N,N,N,N,N,N,N,N,N,N,Y,N),
VLD-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N),
VLW-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N),
VLWU-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N),
VLH-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N),
VLHU-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N),
VLB-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N),
VLBU-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N),
VSD-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N),
VSW-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N),
VSH-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N),
VSB-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N),
VFLD-> List(Y,VCMD_MF,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N),
VFLW-> List(Y,VCMD_MF,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N),
VFSD-> List(Y,VCMD_MF,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N),
VFSW-> List(Y,VCMD_MF,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N),
VLSTD-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N),
VLSTW-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N),
VLSTWU-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N),
VLSTH-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N),
VLSTHU-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N),
VLSTB-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N),
VLSTBU-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N),
VSSTD-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N),
VSSTW-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N),
VSSTH-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N),
VSSTB-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N),
VFLSTD-> List(Y,VCMD_MF,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N),
VFLSTW-> List(Y,VCMD_MF,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N),
VFSSTD-> List(Y,VCMD_MF,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N),
VFSSTW-> List(Y,VCMD_MF,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N),
VENQCMD-> List(Y,VCMD_A, VIMM_X, VIMM2_X, N,VEC_FN_N, N,Y,N,N,N,Y,N,N,N,Y,N,N),
VENQIMM1-> List(Y,VCMD_X, VIMM_ALU, VIMM2_X, N,VEC_FN_N, N,N,Y,N,N,N,Y,N,N,Y,N,N),
VENQIMM2-> List(Y,VCMD_X, VIMM_X, VIMM2_ALU,N,VEC_FN_N, N,N,N,Y,N,N,N,Y,N,Y,N,N),
VENQCNT-> List(Y,VCMD_X, VIMM_X, VIMM2_X, N,VEC_FN_N, N,N,N,N,Y,N,N,N,Y,Y,N,N),
VWAITXCPT-> List(Y,VCMD_X, VIMM_X, VIMM2_X, N,VEC_FN_N, N,N,N,N,N,N,N,N,N,N,N,Y)
List(N,VCMD_X, VIMM_X, VIMM2_X, N,VEC_X, N,N,N,N,N,N,N,N,N,N,N,N,N,N,N),Array(
VVCFGIVL-> List(Y,VCMD_I, VIMM_VLEN,VIMM2_X, Y,VEC_CFGVL,N,Y,Y,N,N,Y,Y,N,N,N,N,N,N,N,N),
VVCFG-> List(Y,VCMD_I, VIMM_VLEN,VIMM2_X, N,VEC_CFG, N,Y,Y,N,N,Y,Y,N,N,N,N,N,N,N,N),
VSETVL-> List(Y,VCMD_I, VIMM_VLEN,VIMM2_X, Y,VEC_VL, N,Y,Y,N,N,Y,Y,N,N,N,N,N,N,N,N),
VF-> List(Y,VCMD_I, VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,N,N,N,N,N,N,N,N,N,N),
VMVV-> List(Y,VCMD_TX,VIMM_X, VIMM2_X, N,VEC_FN_N, Y,Y,N,N,N,N,N,N,N,N,N,N,N,N,N),
VMSV-> List(Y,VCMD_TX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,N,N,N,N,N,N,N,N,N,N),
VFMVV-> List(Y,VCMD_TF,VIMM_X, VIMM2_X, N,VEC_FN_N, Y,Y,N,N,N,N,N,N,N,N,N,N,N,N,N),
FENCE_L_V-> List(Y,VCMD_F, VIMM_X, VIMM2_X, N,VEC_FN_N, N,Y,N,N,N,N,N,N,N,N,N,N,N,N,N),
FENCE_G_V-> List(Y,VCMD_F, VIMM_X, VIMM2_X, N,VEC_FN_N, N,Y,N,N,N,N,N,N,N,N,N,N,N,N,N),
FENCE_L_CV->List(Y,VCMD_F, VIMM_X, VIMM2_X, N,VEC_FN_N, N,N,N,N,N,N,N,N,N,N,Y,N,N,N,N),
FENCE_G_CV->List(Y,VCMD_F, VIMM_X, VIMM2_X, N,VEC_FN_N, N,N,N,N,N,N,N,N,N,N,Y,N,N,N,N),
VLD-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N,N,N,N),
VLW-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N,N,N,N),
VLWU-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N,N,N,N),
VLH-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N,N,N,N),
VLHU-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N,N,N,N),
VLB-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N,N,N,N),
VLBU-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N,N,N,N),
VSD-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N,N,N,N),
VSW-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N,N,N,N),
VSH-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N,N,N,N),
VSB-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N,N,N,N),
VFLD-> List(Y,VCMD_MF,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N,N,N,N),
VFLW-> List(Y,VCMD_MF,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N,N,N,N),
VFSD-> List(Y,VCMD_MF,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N,N,N,N),
VFSW-> List(Y,VCMD_MF,VIMM_ALU, VIMM2_X, N,VEC_FN_N, Y,Y,Y,N,N,Y,Y,N,N,N,N,N,N,N,N),
VLSTD-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N,N,N,N),
VLSTW-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N,N,N,N),
VLSTWU-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N,N,N,N),
VLSTH-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N,N,N,N),
VLSTHU-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N,N,N,N),
VLSTB-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N,N,N,N),
VLSTBU-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N,N,N,N),
VSSTD-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N,N,N,N),
VSSTW-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N,N,N,N),
VSSTH-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N,N,N,N),
VSSTB-> List(Y,VCMD_MX,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N,N,N,N),
VFLSTD-> List(Y,VCMD_MF,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N,N,N,N),
VFLSTW-> List(Y,VCMD_MF,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N,N,N,N),
VFSSTD-> List(Y,VCMD_MF,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N,N,N,N),
VFSSTW-> List(Y,VCMD_MF,VIMM_ALU, VIMM2_RS2,N,VEC_FN_N, Y,Y,Y,Y,N,Y,Y,Y,N,N,N,N,N,N,N),
VENQCMD-> List(Y,VCMD_A, VIMM_X, VIMM2_X, N,VEC_FN_N, N,Y,N,N,N,Y,N,N,N,Y,N,N,N,N,N),
VENQIMM1-> List(Y,VCMD_X, VIMM_ALU, VIMM2_X, N,VEC_FN_N, N,N,Y,N,N,N,Y,N,N,Y,N,N,N,N,N),
VENQIMM2-> List(Y,VCMD_X, VIMM_X, VIMM2_ALU,N,VEC_FN_N, N,N,N,Y,N,N,N,Y,N,Y,N,N,N,N,N),
VENQCNT-> List(Y,VCMD_X, VIMM_X, VIMM2_X, N,VEC_FN_N, N,N,N,N,Y,N,N,N,Y,Y,N,N,N,N,N),
VXCPTEVAC-> List(Y,VCMD_X, VIMM_X, VIMM2_X, N,VEC_FN_N, N,N,N,N,N,N,N,N,N,N,N,Y,N,N,N),
VXCPTKILL-> List(Y,VCMD_X, VIMM_X, VIMM2_X, N,VEC_FN_N, N,N,N,N,N,N,N,N,N,N,N,N,Y,N,N),
VXCPTWAIT-> List(Y,VCMD_X, VIMM_X, VIMM2_X, N,VEC_FN_N, N,N,N,N,N,N,N,N,N,N,N,N,N,Y,N),
VXCPTHOLD-> List(Y,VCMD_X, VIMM_X, VIMM2_X, N,VEC_FN_N, N,N,N,N,N,N,N,N,N,N,N,N,N,N,Y)
))
val wb_vec_val :: wb_sel_vcmd :: wb_sel_vimm :: wb_sel_vimm2 :: wb_vec_wen :: wb_vec_fn :: wb_vec_appvlmask :: veccs0 = veccs
val wb_vec_cmdq_enq :: wb_vec_ximm1q_enq :: wb_vec_ximm2q_enq :: wb_vec_cntq_enq :: veccs1 = veccs0
val wb_vec_pfcmdq_enq :: wb_vec_pfximm1q_enq :: wb_vec_pfximm2q_enq :: wb_vec_pfcntq_enq :: veccs2 = veccs1
val wb_vec_pfaq :: wb_vec_fence_cv :: wb_vec_waitxcpt :: Nil = veccs2
val wb_vec_pfaq :: wb_vec_fence_cv :: wb_vec_xcptevac :: wb_vec_xcptkill :: wb_vec_xcptwait :: wb_vec_xcpthold :: Nil = veccs2
val valid_common = io.dpath.valid && io.sr_ev && wb_vec_val && !(wb_vec_appvlmask && io.dpath.appvl0)
@@ -207,15 +215,24 @@ class rocketCtrlVec extends Component
wb_vec_fence_cv && !io.iface.vfence_ready
)
val reg_waitxcpt = Reg(resetVal = Bool(false))
val do_waitxcpt = valid_common && wb_vec_waitxcpt && !io.replay
val reg_xcptwait = Reg(resetVal = Bool(false))
val do_xcptwait = valid_common && wb_vec_xcptwait && !io.replay
when (do_waitxcpt) { reg_waitxcpt := Bool(true) }
when (io.iface.exception_ack_valid) { reg_waitxcpt := Bool(false) }
when (do_xcptwait) { reg_xcptwait := Bool(true) }
when (io.iface.exception_ack_valid) { reg_xcptwait := Bool(false) }
io.iface.exception := io.exception && io.sr_ev
io.iface.exception_ack_ready := reg_waitxcpt
io.iface.exception_ack_ready := reg_xcptwait
io.stalld := reg_waitxcpt
val reg_hold = Reg(resetVal = Bool(false))
when (wb_vec_xcpthold) { reg_hold := Bool(true) }
when (io.eret) { reg_hold := Bool(false) }
io.iface.evac := wb_vec_xcptevac.toBool
io.iface.kill := wb_vec_xcptkill.toBool
io.iface.hold := reg_hold
io.stalld := reg_xcptwait
io.vfence_ready := !io.sr_ev || io.iface.vfence_ready
}

4
rocket/src/main/scala/dpath.scala
View File

@@ -383,10 +383,6 @@ class rocketDpath extends Component
vec.io.vecbankcnt := pcr.io.vecbankcnt
vec.io.wdata := wb_reg_vec_wdata
vec.io.rs2 := wb_reg_rs2
vec.io.vechold := pcr.io.vechold
vec.io.pcrw.addr := wb_reg_raddr2
vec.io.pcrw.en := io.ctrl.wen_pcr
vec.io.pcrw.data := wb_reg_wdata
pcr.io.vec_appvl := vec.io.appvl
pcr.io.vec_nxregs := vec.io.nxregs

6
rocket/src/main/scala/dpath_util.scala
View File

@@ -79,7 +79,6 @@ class ioDpathPCR extends Bundle()
val irq_ipi = Bool(OUTPUT);
val vecbank = Bits(8, OUTPUT)
val vecbankcnt = UFix(4, OUTPUT)
val vechold = Bool(OUTPUT)
val vec_appvl = UFix(12, INPUT)
val vec_nxregs = UFix(6, INPUT)
val vec_nfregs = UFix(6, INPUT)
@@ -101,7 +100,6 @@ class rocketDpathPCR extends Component
val reg_k1 = Reg() { Bits() };
val reg_ptbr = Reg() { UFix() };
val reg_vecbank = Reg(resetVal = Bits("b1111_1111", 8))
val reg_vechold = Reg() { Bool() }
val reg_error_mode = Reg(resetVal = Bool(false));
val reg_status_vm = Reg(resetVal = Bool(false));
@@ -143,8 +141,6 @@ class rocketDpathPCR extends Component
cnt = cnt + reg_vecbank(i)
io.vecbankcnt := cnt(3,0)
io.vechold := reg_vechold
val badvaddr_sign = Mux(io.w.data(VADDR_BITS-1), ~io.w.data(63,VADDR_BITS) === UFix(0), io.w.data(63,VADDR_BITS) != UFix(0))
when (io.badvaddr_wen) {
reg_badvaddr := Cat(badvaddr_sign, io.w.data(VADDR_BITS-1,0)).toUFix;
@@ -174,7 +170,6 @@ class rocketDpathPCR extends Component
when (io.eret) {
reg_status_s := reg_status_ps;
reg_status_et := Bool(true);
reg_vechold := Bool(false)
}
when (reg_count === reg_compare) {
@@ -212,7 +207,6 @@ class rocketDpathPCR extends Component
when (waddr === PCR_K1) { reg_k1 := wdata; }
when (waddr === PCR_PTBR) { reg_ptbr := Cat(wdata(PADDR_BITS-1, PGIDX_BITS), Bits(0, PGIDX_BITS)).toUFix; }
when (waddr === PCR_VECBANK) { reg_vecbank := wdata(7,0) }
when (waddr === PCR_VEC_HOLD) { reg_vechold := reg_status_ev && wdata(0) }
}
rdata := Bits(0, 64)

12
rocket/src/main/scala/dpath_vec.scala
View File

@@ -12,10 +12,7 @@ class ioDpathVecInterface extends Bundle
val vximm1q_bits = Bits(SZ_VIMM, OUTPUT)
val vximm2q_bits = Bits(SZ_VSTRIDE, OUTPUT)
val vcntq_bits = Bits(SZ_VLEN, OUTPUT)
val backup = Bool(OUTPUT)
val backup_addr = Bits(64, OUTPUT)
val kill = Bool(OUTPUT)
val hold = Bool(OUTPUT)
val evac_addr = Bits(64, OUTPUT)
}
class ioDpathVec extends Bundle
@@ -30,8 +27,6 @@ class ioDpathVec extends Bundle
val vecbankcnt = UFix(4, INPUT)
val wdata = Bits(64, INPUT)
val rs2 = Bits(64, INPUT)
val vechold = Bool(INPUT)
val pcrw = new ioWritePort()
val wen = Bool(OUTPUT)
val appvl = UFix(12, OUTPUT)
val nxregs = UFix(6, OUTPUT)
@@ -162,10 +157,7 @@ class rocketDpathVec extends Component
io.iface.vcntq_bits := io.wdata(SZ_VLEN-1, 0)
io.iface.backup := io.pcrw.en && (io.pcrw.addr === PCR_VEC_BACKUP)
io.iface.backup_addr := io.pcrw.data
io.iface.kill := io.pcrw.en && (io.pcrw.addr === PCR_VEC_KILL)
io.iface.hold := io.vechold
io.iface.evac_addr := io.wdata
io.ctrl.valid := io.valid
io.ctrl.inst := io.inst

11
rocket/src/main/scala/instructions.scala
View File

@@ -33,11 +33,11 @@ object Instructions
val SLL = Bits("b?????_?????_?????_0000000001_0110011",32);
val SLT = Bits("b?????_?????_?????_0000000010_0110011",32);
val SLTU = Bits("b?????_?????_?????_0000000011_0110011",32);
val riscvXOR = Bits("b?????_?????_?????_0000000100_0110011",32);
val riscvXOR = Bits("b?????_?????_?????_0000000100_0110011",32);
val SRL = Bits("b?????_?????_?????_0000000101_0110011",32);
val SRA = Bits("b?????_?????_?????_1000000101_0110011",32);
val riscvOR = Bits("b?????_?????_?????_0000000110_0110011",32);
val riscvAND = Bits("b?????_?????_?????_0000000111_0110011",32);
val riscvOR = Bits("b?????_?????_?????_0000000110_0110011",32);
val riscvAND = Bits("b?????_?????_?????_0000000111_0110011",32);
val MUL = Bits("b?????_?????_?????_0000001000_0110011",32);
val MULH = Bits("b?????_?????_?????_0000001001_0110011",32);
val MULHSU = Bits("b?????_?????_?????_0000001010_0110011",32);
@@ -253,7 +253,10 @@ object Instructions
val VENQIMM1 = Bits("b00000_?????_?????_1000000001_1111011",32)
val VENQIMM2 = Bits("b00000_?????_?????_1000000010_1111011",32)
val VENQCNT = Bits("b00000_?????_?????_1000000011_1111011",32)
val VWAITXCPT = Bits("b00000_00000_00000_1100000000_1111011",32)
val VXCPTEVAC = Bits("b00000_?????_00000_1100000000_1111011",32)
val VXCPTKILL = Bits("b00000_00000_00000_1100000001_1111011",32)
val VXCPTWAIT = Bits("b00000_00000_00000_1100000010_1111011",32)
val VXCPTHOLD = Bits("b00000_00000_00000_1100000011_1111011",32)
val NOP = ADDI & Bits("b00000000000000000000001111111111", 32);
}