riscv/rocket-chip
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hack fence.g.cv to support waiting the control processor

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This commit is contained in:
Yunsup Lee 2012-03-02 02:10:26 -08:00
parent 1054cec087
commit 54baa0713c
2 changed files with 52 additions and 43 deletions
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1
rocket/src/main/scala/cpu.scala
View File

@ -193,6 +193,7 @@ class rocketProc(resetSignal: Bool = null) extends Component(resetSignal)
// exceptions
vu.io.cpu_exception.addr := dpath.io.vec_iface.eaddr.toUFix
vu.io.cpu_exception.exception := dpath.io.vec_iface.exception
ctrl.io.vec_iface.exception_done := vu.io.done
// hooking up vector memory interface
val storegen = new StoreDataGen

94
rocket/src/main/scala/ctrl_vec.scala
View File

@ -35,6 +35,8 @@ class ioCtrlVecInterface extends Bundle
val vackq_valid = Bool(INPUT)
val vackq_ready = Bool(OUTPUT)
val exception_done = Bool(INPUT)
}
class ioCtrlVec extends Bundle
@ -62,52 +64,52 @@ class rocketCtrlVec extends Component
// val vcmd vimm | fn | | | | | | vpximm2q
// | | | | | | | | | | | | cpfence
// | | | | | | | | | | | | |
List(N,VCMD_X, VIMM_X, N,VEC_X ,N,N,N,N,N,N,N,N),Array(
VVCFGIVL-> List(Y,VCMD_I, VIMM_VLEN,Y,VEC_CFG,N,Y,Y,N,Y,Y,N,N),
VSETVL-> List(Y,VCMD_I, VIMM_VLEN,Y,VEC_VL ,N,Y,Y,N,Y,Y,N,N),
VF-> List(Y,VCMD_I, VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N,N,N,N),
VMVV-> List(Y,VCMD_TX,VIMM_X, N,VEC_X ,Y,Y,N,N,N,N,N,N),
VMSV-> List(Y,VCMD_TX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N,N,N,N),
VFMVV-> List(Y,VCMD_TF,VIMM_X, N,VEC_X ,Y,Y,N,N,N,N,N,N),
FENCE_L_V-> List(Y,VCMD_F, VIMM_X, N,VEC_X ,N,Y,N,N,N,N,N,N),
FENCE_G_V-> List(Y,VCMD_F, VIMM_X, N,VEC_X ,N,Y,N,N,N,N,N,N),
FENCE_L_CV->List(Y,VCMD_F, VIMM_X, N,VEC_X ,N,Y,N,N,N,N,N,Y),
FENCE_G_CV->List(Y,VCMD_F, VIMM_X, N,VEC_X ,N,Y,N,N,N,N,N,Y),
VLD-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N),
VLW-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N),
VLWU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N),
VLH-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N),
VLHU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N),
VLB-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N),
VLBU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N),
VSD-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N),
VSW-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N),
VSH-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N),
VSB-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N),
VFLD-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N),
VFLW-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N),
VFSD-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N),
VFSW-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N),
VLSTD-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N),
VLSTW-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N),
VLSTWU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N),
VLSTH-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N),
VLSTHU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N),
VLSTB-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N),
VLSTBU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N),
VSSTD-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N),
VSSTW-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N),
VSSTH-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N),
VSSTB-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N),
VFLSTD-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N),
VFLSTW-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N),
VFSSTD-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N),
VFSSTW-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N)
List(N,VCMD_X, VIMM_X, N,VEC_X ,N,N,N,N,N,N,N,N,N),Array(
VVCFGIVL-> List(Y,VCMD_I, VIMM_VLEN,Y,VEC_CFG,N,Y,Y,N,Y,Y,N,N,N),
VSETVL-> List(Y,VCMD_I, VIMM_VLEN,Y,VEC_VL ,N,Y,Y,N,Y,Y,N,N,N),
VF-> List(Y,VCMD_I, VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N,N,N,N,N),
VMVV-> List(Y,VCMD_TX,VIMM_X, N,VEC_X ,Y,Y,N,N,N,N,N,N,N),
VMSV-> List(Y,VCMD_TX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N,N,N,N,N),
VFMVV-> List(Y,VCMD_TF,VIMM_X, N,VEC_X ,Y,Y,N,N,N,N,N,N,N),
FENCE_L_V-> List(Y,VCMD_F, VIMM_X, N,VEC_X ,N,Y,N,N,N,N,N,N,N),
FENCE_G_V-> List(Y,VCMD_F, VIMM_X, N,VEC_X ,N,Y,N,N,N,N,N,N,N),
FENCE_L_CV->List(Y,VCMD_F, VIMM_X, N,VEC_X ,N,Y,N,N,N,N,N,Y,N),
FENCE_G_CV->List(Y,VCMD_F, VIMM_X, N,VEC_X ,N,N,N,N,N,N,N,N,Y),
VLD-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N,N),
VLW-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N,N),
VLWU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N,N),
VLH-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N,N),
VLHU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N,N),
VLB-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N,N),
VLBU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N,N),
VSD-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N,N),
VSW-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N,N),
VSH-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N,N),
VSB-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N,N),
VFLD-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N,N),
VFLW-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N,N),
VFSD-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N,N),
VFSW-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,Y,Y,N,N,N),
VLSTD-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N,N),
VLSTW-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N,N),
VLSTWU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N,N),
VLSTH-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N,N),
VLSTHU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N,N),
VLSTB-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N,N),
VLSTBU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N,N),
VSSTD-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N,N),
VSSTW-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N,N),
VSSTH-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N,N),
VSSTB-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N,N),
VFLSTD-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N,N),
VFLSTW-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N,N),
VFSSTD-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N,N),
VFSSTW-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,Y,Y,Y,N,N)
))
val wb_vec_val :: wb_sel_vcmd :: wb_sel_vimm :: wb_vec_wen :: wb_vec_fn :: wb_vec_appvlmask :: veccs0 = veccs
val wb_vec_cmdq_enq :: wb_vec_ximm1q_enq :: wb_vec_ximm2q_enq :: veccs1 = veccs0
val wb_vec_pfcmdq_enq :: wb_vec_pfximm1q_enq :: wb_vec_pfximm2q_enq :: wb_vec_cpfence :: Nil = veccs1
val wb_vec_pfcmdq_enq :: wb_vec_pfximm1q_enq :: wb_vec_pfximm2q_enq :: wb_vec_cpfence :: wb_vec_xcptfence :: Nil = veccs1
val valid_common = io.dpath.valid && io.sr_ev && wb_vec_val.toBool && !(wb_vec_appvlmask.toBool && io.dpath.appvl0)
@ -171,5 +173,11 @@ class rocketCtrlVec extends Component
when (do_cpfence) { reg_cpfence := Bool(true) }
when (io.iface.vackq_valid || io.exception) { reg_cpfence := Bool(false) }
io.cpfence := reg_cpfence
val reg_xcptfence = Reg(resetVal = Bool(false))
val do_xcptfence = valid_common && wb_vec_xcptfence && !io.replay
when (do_xcptfence) { reg_xcptfence := Bool(true) }
when (io.iface.exception_done) { reg_xcptfence := Bool(false) }
io.cpfence := reg_cpfence || reg_xcptfence
}