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| author | Jan-Peter Larsson <jan-peter.larsson@arm.com> | 2019-08-15 12:49:16 +0100 |
|---|---|---|
| committer | Giacomo Travaglini <giacomo.travaglini@arm.com> | 2019-09-05 16:37:18 +0000 |
| commit | 94f9eebd1f2da64287a27e6a94efe88edebb383c (patch) | |
| tree | 3ba8b3ee8e74d3c1c266d6e8dd4c4bca72a1f954 /src/dev/arm | |
| parent | e06d4f2658b2817b07ea3d71d5554b02f874fee0 (diff) | |
| download | gem5-94f9eebd1f2da64287a27e6a94efe88edebb383c.tar.xz | |
dev-arm: Implement invalidateASID in SMMUv3 WalkCache
This patch fixes a bug where issuing a invalidate-by-ASID command
(CMD_TLBI_NH_ASID) to the SMMU would cause Gem5 to crash.
Change-Id: I5b8343a17e43762fe3917560ae401a20be1e05b8
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/20259
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
Diffstat (limited to 'src/dev/arm')
| -rw-r--r-- | src/dev/arm/smmu_v3_caches.cc | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/dev/arm/smmu_v3_caches.cc b/src/dev/arm/smmu_v3_caches.cc index d92c54480..f6384b466 100644 --- a/src/dev/arm/smmu_v3_caches.cc +++ b/src/dev/arm/smmu_v3_caches.cc @@ -1122,7 +1122,16 @@ WalkCache::invalidateVAA(Addr va, uint16_t vmid, const bool leaf_only) void WalkCache::invalidateASID(uint16_t asid, uint16_t vmid) { - panic("%s unimplemented\n", __func__); + for (size_t s = 0; s < sets.size(); s++) { + Set &set = sets[s]; + + for (size_t i = 0; i < set.size(); i++) { + Entry &e = set[i]; + + if (e.asid==asid && e.vmid==vmid) + e.valid = false; + } + } } void |