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| author | Kevin Lim <ktlim@umich.edu> | 2006-05-31 11:45:02 -0400 |
|---|---|---|
| committer | Kevin Lim <ktlim@umich.edu> | 2006-05-31 11:45:02 -0400 |
| commit | a514bf21508f4398f5cf7322f5f2a1ed212bbcaa (patch) | |
| tree | e41f2e45926a5724765f762fe8c4b34e9e4d5c56 /cpu/o3/iew.hh | |
| parent | 94eff2f4854ce23900bcc3d694ff4c290111bea7 (diff) | |
| download | gem5-a514bf21508f4398f5cf7322f5f2a1ed212bbcaa.tar.xz | |
Comments and code cleanup.
cpu/activity.cc:
cpu/activity.hh:
cpu/o3/alpha_cpu.hh:
Updates to include comments.
cpu/base_dyn_inst.cc:
Remove call to thread->misspeculating(), as it's never actually misspeculating.
--HG--
extra : convert_revision : 86574d684770fac9b480475acca048ea418cdac3
Diffstat (limited to 'cpu/o3/iew.hh')
| -rw-r--r-- | cpu/o3/iew.hh | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/cpu/o3/iew.hh b/cpu/o3/iew.hh index 935320628..eda6a6bc0 100644 --- a/cpu/o3/iew.hh +++ b/cpu/o3/iew.hh @@ -160,12 +160,16 @@ class DefaultIEW /** Sets pointer to the scoreboard. */ void setScoreboard(Scoreboard *sb_ptr); + /** Starts switch out of IEW stage. */ void switchOut(); + /** Completes switch out of IEW stage. */ void doSwitchOut(); + /** Takes over from another CPU's thread. */ void takeOverFrom(); + /** Returns if IEW is switched out. */ bool isSwitchedOut() { return switchedOut; } /** Sets page table pointer within LSQ. */ @@ -287,6 +291,7 @@ class DefaultIEW void tick(); private: + /** Updates execution stats based on the instruction. */ void updateExeInstStats(DynInstPtr &inst); /** Pointer to main time buffer used for backwards communication. */ @@ -429,6 +434,7 @@ class DefaultIEW /** Maximum size of the skid buffer. */ unsigned skidBufferMax; + /** Is this stage switched out. */ bool switchedOut; /** Stat for total number of idle cycles. */ @@ -470,9 +476,13 @@ class DefaultIEW /** Stat for total number of mispredicted branches detected at execute. */ Stats::Formula branchMispredicts; + /** Number of executed software prefetches. */ Stats::Vector<> exeSwp; + /** Number of executed nops. */ Stats::Vector<> exeNop; + /** Number of executed meomory references. */ Stats::Vector<> exeRefs; + /** Number of executed branches. */ Stats::Vector<> exeBranches; // Stats::Vector<> issued_ops; @@ -482,19 +492,30 @@ class DefaultIEW Stats::Vector<> dist_unissued; Stats::Vector2d<> stat_issued_inst_type; */ + /** Number of instructions issued per cycle. */ Stats::Formula issueRate; + /** Number of executed store instructions. */ Stats::Formula iewExecStoreInsts; // Stats::Formula issue_op_rate; // Stats::Formula fu_busy_rate; - + /** Number of instructions sent to commit. */ Stats::Vector<> iewInstsToCommit; + /** Number of instructions that writeback. */ Stats::Vector<> writebackCount; + /** Number of instructions that wake consumers. */ Stats::Vector<> producerInst; + /** Number of instructions that wake up from producers. */ Stats::Vector<> consumerInst; + /** Number of instructions that were delayed in writing back due + * to resource contention. + */ Stats::Vector<> wbPenalized; + /** Number of instructions per cycle written back. */ Stats::Formula wbRate; + /** Average number of woken instructions per writeback. */ Stats::Formula wbFanout; + /** Number of instructions per cycle delayed in writing back . */ Stats::Formula wbPenalizedRate; }; |