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| author | Alec Roelke <ar4jc@virginia.edu> | 2017-03-21 12:51:54 -0400 |
|---|---|---|
| committer | Alec Roelke <ar4jc@virginia.edu> | 2017-04-05 20:21:04 +0000 |
| commit | 9d0c9ab12361e009796bdb0b5d074c98d3f75b0e (patch) | |
| tree | 9bd47ef4af8035a833a676f6f76487b371b84b95 | |
| parent | f7ddc4672a17ee4fab3011bb1b570cc7c17dff28 (diff) | |
| download | gem5-9d0c9ab12361e009796bdb0b5d074c98d3f75b0e.tar.xz | |
riscv: enable unaligned memory accesses
Sometimes an ld instruction will be split across a
cache boundary. Previously RISC-V was set to not
allow this. This patch fixes that.
Change-Id: I8bc8ea6d67f65a9b3662e14c4037f4224799d20f
Reviewed-on: https://gem5-review.googlesource.com/2341
Maintainer: Alec Roelke <ar4jc@virginia.edu>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
| -rw-r--r-- | src/arch/riscv/isa_traits.hh | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/arch/riscv/isa_traits.hh b/src/arch/riscv/isa_traits.hh index f7a2c8762..327d64498 100644 --- a/src/arch/riscv/isa_traits.hh +++ b/src/arch/riscv/isa_traits.hh @@ -65,8 +65,8 @@ const Addr PageBytes = ULL(1) << PageShift; const ExtMachInst NoopMachInst = 0x00000013; -// Memory accesses can not be unaligned -const bool HasUnalignedMemAcc = false; +// Memory accesses can be unaligned (at least for double-word memory accesses) +const bool HasUnalignedMemAcc = true; const bool CurThreadInfoImplemented = false; const int CurThreadInfoReg = -1; |