riscv/rocket-chip
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debug: DATA Region has to be aligned for ld/sd to correctly detect 64-bit cores.

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Megan Wachs 2017-04-13 12:27:32 -07:00 committed by Yunsup Lee
parent b44d5f9386
commit af6b2d8051
1 changed files with 25 additions and 15 deletions
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34
src/main/scala/uncore/devices/debug/Debug.scala
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@ -53,10 +53,20 @@ object DsbRegAddrs{
def EXCEPTION = 0x10C
def WHERETO = 0x300
def ABSTRACT = 0x304
def PROGBUF = 0x304 + 8
// This shows up in HartInfo
def DATA(cfg: DebugModuleConfig) = {PROGBUF + (cfg.nProgramBufferWords * 4)}
// This needs to be aligned for up to lq/sq
// This shows up in HartInfo, and needs to be aligned
// to enable up to LQ/SQ instructions.
def DATA = 0x380
// We want DATA to immediately follow PROGBUF so that we can
// use them interchangeably.
def PROGBUF(cfg:DebugModuleConfig) = {DATA - (cfg.nProgramBufferWords * 4)}
// We want abstract to be immediately before PROGBUF
// because we auto-generate 2 instructions.
def ABSTRACT(cfg:DebugModuleConfig) = PROGBUF(cfg) - 8
def FLAGS = 0x400
def ROMBASE = 0x800
@ -540,7 +550,7 @@ class TLDebugModuleInner(device: Device, getNComponents: () => Int)(implicit p:
val HARTINFORdData = Wire (init = (new HARTINFOFields()).fromBits(0.U))
HARTINFORdData.dataaccess := true.B
HARTINFORdData.datasize := cfg.nAbstractDataWords.U
HARTINFORdData.dataaddr := DsbRegAddrs.DATA(cfg).U
HARTINFORdData.dataaddr := DsbRegAddrs.DATA.U
HARTINFORdData.nscratch := cfg.nScratch.U
//----HALTSUM (and halted registers)
@ -734,7 +744,7 @@ class TLDebugModuleInner(device: Device, getNComponents: () => Int)(implicit p:
val goReg = Reg(Bool())
val goAbstract = Wire(init = false.B)
val jalAbstract = Wire(init = (new GeneratedUJ()).fromBits(rocket.Instructions.JAL.value.U))
jalAbstract.setImm(ABSTRACT - WHERETO)
jalAbstract.setImm(ABSTRACT(cfg) - WHERETO)
when (~io.dmactive){
goReg := false.B
@ -819,14 +829,14 @@ class TLDebugModuleInner(device: Device, getNComponents: () => Int)(implicit p:
abstractGeneratedI.rd := (accessRegisterCommandReg.regno & 0x1F.U)
abstractGeneratedI.funct3 := accessRegisterCommandReg.size
abstractGeneratedI.rs1 := 0.U
abstractGeneratedI.imm := DATA(cfg).U
abstractGeneratedI.imm := DATA.U
abstractGeneratedS.opcode := ((new GeneratedS()).fromBits(rocket.Instructions.SW.value.U)).opcode
abstractGeneratedS.immlo := (DATA(cfg) & 0x1F).U
abstractGeneratedS.immlo := (DATA & 0x1F).U
abstractGeneratedS.funct3 := accessRegisterCommandReg.size
abstractGeneratedS.rs1 := 0.U
abstractGeneratedS.rs2 := (accessRegisterCommandReg.regno & 0x1F.U)
abstractGeneratedS.immhi := (DATA(cfg) >> 5).U
abstractGeneratedS.immhi := (DATA >> 5).U
nop := ((new GeneratedI()).fromBits(rocket.Instructions.ADDI.value.U))
nop.rd := 0.U
@ -857,12 +867,12 @@ class TLDebugModuleInner(device: Device, getNComponents: () => Int)(implicit p:
GOING -> Seq(WNotify(sbIdWidth, hartGoingId, hartGoingWrEn)),
RESUMING -> Seq(WNotify(sbIdWidth, hartResumingId, hartResumingWrEn)),
EXCEPTION -> Seq(WNotify(sbIdWidth, hartExceptionId, hartExceptionWrEn)),
DATA(cfg) -> abstractDataMem.map(x => RegField(8, x)),
PROGBUF -> programBufferMem.map(x => RegField(8, x)),
DATA -> abstractDataMem.map(x => RegField(8, x)),
PROGBUF(cfg)-> programBufferMem.map(x => RegField(8, x)),
// These sections are read-only.
WHERETO -> Seq(RegField.r(32, jalAbstract.asUInt)),
ABSTRACT -> abstractGeneratedMem.map{x => RegField.r(32, x)},
ABSTRACT(cfg)-> abstractGeneratedMem.map{x => RegField.r(32, x)},
FLAGS -> flags.map{x => RegField.r(8, x.asUInt())},
ROMBASE -> DebugRomContents().map(x => RegField.r(8, (x & 0xFF).U(8.W)))