riscv/rocket-chip
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add vec->ctrl fences

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This commit is contained in:
Andrew Waterman 2012-02-15 18:30:58 -08:00
parent 82cd3625c2
commit fe2c1d1321
2 changed files with 58 additions and 50 deletions
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19
rocket/src/main/scala/ctrl.scala
View File

@ -253,8 +253,8 @@ class rocketCtrl extends Component
VFMVV-> 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),
FENCE_L_V-> 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),
FENCE_G_V-> 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),
FENCE_L_CV->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),
FENCE_G_CV->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),
FENCE_L_CV->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),
FENCE_G_CV->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),
VLD-> 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_X, WB_ALU,REN_N,WEN_N,I_X, SYNC_N,N,N,N,N),
VLW-> 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_X, WB_ALU,REN_N,WEN_N,I_X, SYNC_N,N,N,N,N),
VLWU-> 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_X, WB_ALU,REN_N,WEN_N,I_X, SYNC_N,N,N,N,N),
@ -573,7 +573,7 @@ class rocketCtrl extends Component
}
var vec_replay = Bool(false)
var vec_cpfence = Bool(false)
if (HAVE_VEC)
{
// vector control
@ -588,12 +588,16 @@ class rocketCtrl extends Component
vec.io.iface.vximm1q_ready := io.vec_iface.vximm1q_ready
vec.io.iface.vximm2q_ready := io.vec_iface.vximm2q_ready
// FIXME
// use io.vec_iface.vackq_valid
io.vec_iface.vackq_ready := Bool(true)
vec_replay = vec.io.replay
vec_cpfence = Reg(resetVal = Bool(false))
when (vec.io.cpfence) {
vec_cpfence := Bool(true)
}
when (io.vec_iface.vackq_valid || wb_reg_exception) {
vec_cpfence := Bool(false)
}
io.vec_iface.vackq_ready := Bool(true)
vec.io.sr_ev := io.dpath.status(SR_EV)
}
@ -749,6 +753,7 @@ class rocketCtrl extends Component
id_mem_val.toBool && !(io.dmem.req_rdy && io.dtlb_rdy) ||
id_vec_val.toBool && !(io.vec_iface.vcmdq_ready && io.vec_iface.vximm1q_ready && io.vec_iface.vximm2q_ready) || // being conservative
((id_sync === SYNC_D) || (id_sync === SYNC_I)) && !io.dmem.req_rdy ||
vec_cpfence ||
id_console_out_val && !io.console.rdy
);
val ctrl_stallf = ctrl_stalld;

89
rocket/src/main/scala/ctrl_vec.scala
View File

@ -34,6 +34,7 @@ class ioCtrlVec extends Bundle
val iface = new ioCtrlVecInterface()
val sr_ev = Bool(INPUT)
val replay = Bool(OUTPUT)
val cpfence = Bool(OUTPUT)
}
class rocketCtrlVec extends Component
@ -46,52 +47,53 @@ class rocketCtrlVec extends Component
// | vcmdq
// wen | | vximm1q
// val vcmd vimm | fn | | | vximm2q
// | | | | | | | | |
List(N,VCMD_X, VIMM_X, N,VEC_X ,N,N,N,N),Array(
VVCFGIVL-> List(Y,VCMD_I, VIMM_VLEN,Y,VEC_CFG,N,Y,Y,N),
VSETVL-> List(Y,VCMD_I, VIMM_VLEN,Y,VEC_VL ,N,Y,Y,N),
VF-> List(Y,VCMD_I, VIMM_ALU, N,VEC_X ,Y,Y,Y,N),
VMVV-> List(Y,VCMD_TX,VIMM_X, N,VEC_X ,Y,Y,N,N),
VMSV-> List(Y,VCMD_TX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N),
VFMVV-> List(Y,VCMD_TF,VIMM_X, N,VEC_X ,Y,Y,N,N),
FENCE_L_V-> List(Y,VCMD_F, VIMM_X, N,VEC_X ,N,Y,N,N),
FENCE_G_V-> List(Y,VCMD_F, VIMM_X, N,VEC_X ,N,Y,N,N),
FENCE_L_CV->List(Y,VCMD_F, VIMM_X, N,VEC_X ,N,Y,N,N),
FENCE_G_CV->List(Y,VCMD_F, VIMM_X, N,VEC_X ,N,Y,N,N),
VLD-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N),
VLW-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N),
VLWU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N),
VLH-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N),
VLHU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N),
VLB-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N),
VLBU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N),
VSD-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N),
VSW-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N),
VSH-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N),
VSB-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N),
VFLD-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,N),
VFLW-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,N),
VFSD-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,N),
VFSW-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,N),
VLSTD-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y),
VLSTW-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y),
VLSTWU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y),
VLSTH-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y),
VLSTHU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y),
VLSTB-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y),
VLSTBU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y),
VSSTD-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y),
VSSTW-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y),
VSSTH-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y),
VSSTB-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y),
VFLSTD-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y),
VFLSTW-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y),
VFSSTD-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y),
VFSSTW-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y)
// | | | | | | | | | cpfence
// | | | | | | | | | |
List(N,VCMD_X, VIMM_X, N,VEC_X ,N,N,N,N,N),Array(
VVCFGIVL-> List(Y,VCMD_I, VIMM_VLEN,Y,VEC_CFG,N,Y,Y,N,N),
VSETVL-> List(Y,VCMD_I, VIMM_VLEN,Y,VEC_VL ,N,Y,Y,N,N),
VF-> List(Y,VCMD_I, VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N),
VMVV-> List(Y,VCMD_TX,VIMM_X, N,VEC_X ,Y,Y,N,N,N),
VMSV-> List(Y,VCMD_TX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N),
VFMVV-> List(Y,VCMD_TF,VIMM_X, N,VEC_X ,Y,Y,N,N,N),
FENCE_L_V-> List(Y,VCMD_F, VIMM_X, N,VEC_X ,N,Y,N,N,N),
FENCE_G_V-> List(Y,VCMD_F, VIMM_X, N,VEC_X ,N,Y,N,N,N),
FENCE_L_CV->List(Y,VCMD_F, VIMM_X, N,VEC_X ,N,Y,N,N,Y),
FENCE_G_CV->List(Y,VCMD_F, VIMM_X, N,VEC_X ,N,Y,N,N,Y),
VLD-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N),
VLW-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N),
VLWU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N),
VLH-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N),
VLHU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N),
VLB-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N),
VLBU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N),
VSD-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N),
VSW-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N),
VSH-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N),
VSB-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N),
VFLD-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N),
VFLW-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N),
VFSD-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N),
VFSW-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,N,N),
VLSTD-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,N),
VLSTW-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,N),
VLSTWU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,N),
VLSTH-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,N),
VLSTHU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,N),
VLSTB-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,N),
VLSTBU-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,N),
VSSTD-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,N),
VSSTW-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,N),
VSSTH-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,N),
VSSTB-> List(Y,VCMD_MX,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,N),
VFLSTD-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,N),
VFLSTW-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,N),
VFSSTD-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,N),
VFSSTW-> List(Y,VCMD_MF,VIMM_ALU, N,VEC_X ,Y,Y,Y,Y,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 :: Nil = veccs0
val wb_vec_cmdq_enq :: wb_vec_ximm1q_enq :: wb_vec_ximm2q_enq :: wb_vec_cpfence :: Nil = veccs0
val valid_common = io.dpath.valid && io.sr_ev && wb_vec_val.toBool && !(wb_vec_appvlmask.toBool && io.dpath.appvl0)
@ -113,4 +115,5 @@ class rocketCtrlVec extends Component
wb_vec_ximm1q_enq && !io.iface.vximm1q_ready ||
wb_vec_ximm2q_enq && !io.iface.vximm2q_ready
)
io.cpfence := valid_common && wb_vec_cpfence && !io.replay
}