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* placer1: Allow chain position swaps after legalisationDavid Shah2019-03-221-2/+114
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* placer1: Tweaking temperatureDavid Shah2019-03-221-9/+14
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* placer1: Make budget-based placement an optionDavid Shah2019-03-221-22/+29
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* placer1: TuningDavid Shah2019-03-221-6/+5
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* placer1: Fix cost delta calculationDavid Shah2019-03-221-1/+3
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* placer1: BugfixesDavid Shah2019-03-221-11/+15
| | | | Signed-off-by: David Shah <dave@ds0.me>
* placer1: Rework to use new criticality-based weighted cost functionDavid Shah2019-03-221-88/+148
| | | | Signed-off-by: David Shah <dave@ds0.me>
* placer1: New cost calculation infrastructureDavid Shah2019-03-221-1/+103
| | | | Signed-off-by: David Shah <dave@ds0.me>
* json: Fix inputs directly driving inoutsDavid Shah2019-03-201-1/+1
| | | | Signed-off-by: David Shah <dave@ds0.me>
* clangformatDavid Shah2019-02-081-1/+1
| | | | Signed-off-by: David Shah <dave@ds0.me>
* placer1: Add place time printDavid Shah2019-01-301-2/+9
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* placer1: During initial placement, don't rip-up strongly binded cellsSylvain Munaut2018-11-261-2/+3
| | | | Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
* common/placer1: In random pick, only use grid if there is more than 64 BELsSylvain Munaut2018-11-191-8/+20
| | | | | | | | | | If you have a large grid and very few BELs of a given type, picking a random grid location yields very little odds of finding a BEL of that type. So for those, just put all of them at (0,0) and do a true random pick. Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
* [placer1] Only perform slack redist if legalisedEddie Hung2018-11-131-4/+4
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* [placer1] Only increase temperature if legaliser moved somethingEddie Hung2018-11-131-9/+11
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* [placer1] Fix require_legal polarityEddie Hung2018-11-131-3/+3
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* [common] placer to produce error when >1 cell->bel constraintEddie Hung2018-11-081-0/+6
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* clangformatDavid Shah2018-09-301-5/+9
| | | | Signed-off-by: David Shah <davey1576@gmail.com>
* Merge pull request #47 from YosysHQ/settings_propagateClifford Wolf2018-08-181-4/+5
|\ | | | | Use settings for placer1 and router1
| * Use settings for placer1 and router1Miodrag Milanovic2018-08-091-4/+5
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* | std::vector::resize() not reserve()Eddie Hung2018-08-091-1/+1
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* | Get rid of map lookup by borrowing udata to use as index into vectorEddie Hung2018-08-091-19/+20
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* | Try with vectorEddie Hung2018-08-091-17/+47
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* Merge branch 'master' of github.com:YosysHQ/nextpnr into constidsClifford Wolf2018-08-081-1/+4
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| * Disable assign_budget() after placement legalisation, unless slack redistEddie Hung2018-08-081-1/+4
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* | Get rid of PortPin and BelType (ice40, generic, docs)Clifford Wolf2018-08-081-8/+8
|/ | | | Signed-off-by: Clifford Wolf <clifford@clifford.at>
* Restore initial assign_budget() call after pack(), restrict call after ↵Eddie Hung2018-08-051-1/+2
| | | | initial_placement to slack_redist
* API change: Use CellInfo* and NetInfo* as cell/net handles (common, ice40)Clifford Wolf2018-08-051-25/+22
| | | | Signed-off-by: Clifford Wolf <clifford@clifford.at>
* Merge branch 'master' into slack_histogramEddie Hung2018-08-031-15/+27
|\ | | | | | | | | Conflicts: common/placer1.cc
| * clangformatDavid Shah2018-08-041-7/+7
| | | | | | | | Signed-off-by: David Shah <davey1576@gmail.com>
| * Tidy upDavid Shah2018-08-041-1/+0
| | | | | | | | Signed-off-by: David Shah <davey1576@gmail.com>
| * Add constraint weight as a command line optionDavid Shah2018-08-031-4/+5
| | | | | | | | Signed-off-by: David Shah <davey1576@gmail.com>
| * Add distance moved metrics, changing heuristicsDavid Shah2018-08-031-1/+1
| | | | | | | | Signed-off-by: David Shah <davey1576@gmail.com>
| * placer1: Experiment with adding 'constraint distance' metricDavid Shah2018-08-031-2/+11
| | | | | | | | Signed-off-by: David Shah <davey1576@gmail.com>
| * Adding constraint satisfaction checks for debuggingDavid Shah2018-08-031-7/+12
| | | | | | | | Signed-off-by: David Shah <davey1576@gmail.com>
| * Fixing constraint placement bugsDavid Shah2018-08-031-1/+0
| | | | | | | | Signed-off-by: David Shah <davey1576@gmail.com>
| * Reworking packer and placer to use new generic rel legaliserDavid Shah2018-08-031-9/+8
| | | | | | | | Signed-off-by: David Shah <davey1576@gmail.com>
| * Remove old place legaliser, set placement constraints instead (currently ↵David Shah2018-08-031-2/+2
| | | | | | | | | | | | ignored by placer) Signed-off-by: David Shah <davey1576@gmail.com>
* | Refactor timing.cc into Timing classEddie Hung2018-08-031-1/+1
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* Removes unnecessary unlock causing trouble with placerMiodrag Milanovic2018-08-011-1/+0
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* Fix typoEddie Hung2018-07-311-1/+1
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* Cope with slack_redist_iter == 0Eddie Hung2018-07-311-1/+1
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* Add --slack_redist_iter for ice40Eddie Hung2018-07-311-1/+1
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* assign_budget() not quietlyEddie Hung2018-07-301-1/+1
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* assign_budget() after initial placement, not after packEddie Hung2018-07-301-0/+1
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* Merge update_budget into assign_budget; update as we go alongEddie Hung2018-07-281-1/+1
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* Merge remote-tracking branch 'origin/master' into redist_slackEddie Hung2018-07-281-7/+4
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| * placer: only lock/unlock at beginning, yield elsewhereSergiusz Bazanski2018-07-261-7/+4
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* | RefactorEddie Hung2018-07-281-1/+1
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* | Fix min_slack computation, and print out critical path after routingEddie Hung2018-07-251-1/+1
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