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arch-arm: Do not check MustBeOne flag for TLB requests from the prefetcher

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Allow TLB requests generated from prefetchers to override the
MustBeOne arch flag. This allows the prefetchers to issue requests
without having to know architecutre-specific flags.

Change-Id: Id83e0c93f3d1a614da11c4f344ab4dc594423672
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/18768
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
This commit is contained in:
Javier Bueno
2019-05-14 10:14:23 +02:00
committed by Javier Bueno Hedo
parent f0a53b8024
commit abd33d6fd2
1 changed files with 2 additions and 2 deletions
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4
src/arch/arm/tlb.cc
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@@ -586,7 +586,7 @@ TLB::translateSe(const RequestPtr &req, ThreadContext *tc, Mode mode,
bool is_write = (mode == Write);
if (!is_fetch) {
assert(flags & MustBeOne);
assert(flags & MustBeOne || req->isPrefetch());
if (sctlr.a || !(flags & AllowUnaligned)) {
if (vaddr & mask(flags & AlignmentMask)) {
// LPAE is always disabled in SE mode
@@ -1038,7 +1038,7 @@ TLB::translateFs(const RequestPtr &req, ThreadContext *tc, Mode mode,
req->setFlags(Request::STRICT_ORDER);
}
if (!is_fetch) {
assert(flags & MustBeOne);
assert(flags & MustBeOne || req->isPrefetch());
if (sctlr.a || !(flags & AllowUnaligned)) {
if (vaddr & mask(flags & AlignmentMask)) {
alignFaults++;