riscv/rocket-chip
1
0
Fork 0
Code Releases Activity

Merge remote-tracking branch 'origin/master' into debug_v013_pr

Browse Source
This commit is contained in:
Megan Wachs
2017-03-30 08:01:11 -07:00
parent a14b7b5794 c61714a465
commit 9de06f8c83
16 changed files with 130 additions and 60 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
src/main/scala/rocket/CSR.scala
View File

@ -140,6 +140,8 @@ object CSR
val firstHPM = 3
val nCtr = 32
val nHPM = nCtr - firstHPM
val maxPMPs = 16
}
class PerfCounterIO(implicit p: Parameters) extends CoreBundle
@ -418,10 +420,14 @@ class CSRFile(perfEventSets: EventSets = new EventSets(Seq()))(implicit p: Param
val pmpCfgPerCSR = xLen / new PMPConfig().getWidth
def pmpCfgIndex(i: Int) = (xLen / 32) * (i / pmpCfgPerCSR)
for (i <- 0 until reg_pmp.size by pmpCfgPerCSR)
read_mapping += (CSRs.pmpcfg0 + pmpCfgIndex(i)) -> reg_pmp.map(_.cfg).slice(i, i + pmpCfgPerCSR).asUInt
for ((pmp, i) <- reg_pmp zipWithIndex)
read_mapping += (CSRs.pmpaddr0 + i) -> pmp.addr
if (reg_pmp.nonEmpty) {
require(reg_pmp.size <= CSR.maxPMPs)
val read_pmp = reg_pmp.padTo(CSR.maxPMPs, 0.U.asTypeOf(new PMP))
for (i <- 0 until read_pmp.size by pmpCfgPerCSR)
read_mapping += (CSRs.pmpcfg0 + pmpCfgIndex(i)) -> read_pmp.map(_.cfg).slice(i, i + pmpCfgPerCSR).asUInt
for ((pmp, i) <- read_pmp zipWithIndex)
read_mapping += (CSRs.pmpaddr0 + i) -> pmp.addr
}
for (i <- 0 until nCustomMrwCsrs) {
val addr = 0xff0 + i
@ -687,7 +693,7 @@ class CSRFile(perfEventSets: EventSets = new EventSets(Seq()))(implicit p: Param
}
if (reg_pmp.nonEmpty) for (((pmp, next), i) <- (reg_pmp zip (reg_pmp.tail :+ reg_pmp.last)) zipWithIndex) {
require(xLen % pmp.cfg.getWidth == 0)
when (decoded_addr(CSRs.pmpcfg0 + pmpCfgIndex(i)) && !pmp.locked) {
when (decoded_addr(CSRs.pmpcfg0 + pmpCfgIndex(i)) && !pmp.cfgLocked) {
pmp.cfg := new PMPConfig().fromBits(wdata >> ((i * pmp.cfg.getWidth) % xLen))
}
when (decoded_addr(CSRs.pmpaddr0 + i) && !pmp.addrLocked(next)) {
@ -735,10 +741,11 @@ class CSRFile(perfEventSets: EventSets = new EventSets(Seq()))(implicit p: Param
}
for (bp <- reg_bp drop nBreakpoints)
bp := new BP().fromBits(0)
if (reg_pmp.nonEmpty) {
for (pmp <- reg_pmp) {
if (!usingUser) pmp.cfg.m := true
when (reset) { pmp.cfg.p := 0 }
for (pmp <- reg_pmp) {
pmp.cfg.res := 0
when (reset) {
pmp.cfg.a := 0
pmp.cfg.l := 0
}
}