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Improve DCache MMIO QoR 

No need to store the cmd field.  From the perspective of the cache, all
MMIO responses that have data can be treated the same as loads.
This commit is contained in:
Andrew Waterman 2017-03-23 13:18:32 -07:00
parent fb6498f2c3
commit e9cadf29d2
1 changed files with 1 additions and 1 deletions
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src/main/scala/rocket/DCache.scala
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@ -312,7 +312,7 @@ class DCacheModule(outer: DCache) extends HellaCacheModule(outer) {
val req = uncachedReqs(tl_out.d.bits.source)
when (grantIsUncachedData) {
s2_data := tl_out.d.bits.data
s2_req.cmd := req.cmd
s2_req.cmd := M_XRD
s2_req.typ := req.typ
s2_req.tag := req.tag
s2_req.addr := Cat(s1_paddr >> beatOffBits /* don't-care */, req.addr(beatOffBits-1, 0))