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author | Mitch Hayenga <mitch.hayenga@arm.com> | 2016-04-05 12:20:19 -0500 |
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committer | Mitch Hayenga <mitch.hayenga@arm.com> | 2016-04-05 12:20:19 -0500 |
commit | d99deff8ea296fd28b48da08aba577a1e7dfc01b (patch) | |
tree | bb8645f94f33b45b040776e5e0dd0a0d8edb306f /src/cpu/pred/2bit_local.cc | |
parent | 0fd4bb7f12d8a633f3ff0abe61d4f3a78bca6f84 (diff) | |
download | gem5-d99deff8ea296fd28b48da08aba577a1e7dfc01b.tar.xz |
cpu: Implement per-thread GHRs
Branch predictors that use GHRs should index them on a
per-thread basis. This makes that so.
This is a re-spin of fb51231 after the revert (bd1c6789).
Diffstat (limited to 'src/cpu/pred/2bit_local.cc')
-rw-r--r-- | src/cpu/pred/2bit_local.cc | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/src/cpu/pred/2bit_local.cc b/src/cpu/pred/2bit_local.cc index 36ca1593e..9e1c781c5 100644 --- a/src/cpu/pred/2bit_local.cc +++ b/src/cpu/pred/2bit_local.cc @@ -78,7 +78,7 @@ LocalBP::reset() } void -LocalBP::btbUpdate(Addr branch_addr, void * &bp_history) +LocalBP::btbUpdate(ThreadID tid, Addr branch_addr, void * &bp_history) { // Place holder for a function that is called to update predictor history when // a BTB entry is invalid or not found. @@ -86,7 +86,7 @@ LocalBP::btbUpdate(Addr branch_addr, void * &bp_history) bool -LocalBP::lookup(Addr branch_addr, void * &bp_history) +LocalBP::lookup(ThreadID tid, Addr branch_addr, void * &bp_history) { bool taken; uint8_t counter_val; @@ -117,7 +117,8 @@ LocalBP::lookup(Addr branch_addr, void * &bp_history) } void -LocalBP::update(Addr branch_addr, bool taken, void *bp_history, bool squashed) +LocalBP::update(ThreadID tid, Addr branch_addr, bool taken, void *bp_history, + bool squashed) { assert(bp_history == NULL); unsigned local_predictor_idx; @@ -152,7 +153,7 @@ LocalBP::getLocalIndex(Addr &branch_addr) } void -LocalBP::uncondBranch(Addr pc, void *&bp_history) +LocalBP::uncondBranch(ThreadID tid, Addr pc, void *&bp_history) { } |