caiyu/nextpnr
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
1,950 Commits 22 Branches 7 Tags 17 MiB
0d80181c5e
Commit Graph

69 Commits

Author SHA1 Message Date
David Shah
0d80181c5e placer1: Make budget-based placement an option 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-03-22 10:31:28 +00:00
David Shah
a218c27305 placer1: Tuning 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-03-22 10:31:28 +00:00
David Shah
3938ea41fc placer1: Fix cost delta calculation 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-03-22 10:31:28 +00:00
David Shah
2ef2d2b2cb placer1: Bugfixes 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:28 +00:00
David Shah
f8f89cea71 placer1: Rework to use new criticality-based weighted cost function 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:00 +00:00
David Shah
3e40f0b9c3 placer1: New cost calculation infrastructure 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:29:59 +00:00
David Shah
997a66791e json: Fix inputs directly driving inouts 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-20 16:07:47 +00:00
David Shah
db990d2175 clangformat 
Signed-off-by: David Shah <dave@ds0.me>
 2019-02-08 13:43:55 +00:00
David Shah
0ca0af6c72 placer1: Add place time print 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-01-30 17:50:49 +00:00
Sylvain Munaut
822b525035 placer1: During initial placement, don't rip-up strongly binded cells 
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
 2018-11-26 12:51:14 +01:00
Sylvain Munaut
d6fd0e7e5b common/placer1: In random pick, only use grid if there is more than 64 BELs 
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>
 2018-11-19 18:52:40 +01:00
Eddie Hung
df2622d300 [placer1] Only perform slack redist if legalised 2018-11-13 16:33:01 -08:00
Eddie Hung
1b93107843 [placer1] Only increase temperature if legaliser moved something 2018-11-13 16:33:01 -08:00
Eddie Hung
519bcd31bf [placer1] Fix require_legal polarity 2018-11-13 16:33:01 -08:00
Eddie Hung
8258586c7d [common] placer to produce error when >1 cell->bel constraint 2018-11-08 16:21:31 -08:00
David Shah
ea03aafc26 clangformat 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-30 15:13:18 +01:00
Clifford Wolf
26be6f9761
Merge pull request #47 from YosysHQ/settings_propagate 
Use settings for placer1 and router1
 2018-08-18 19:25:19 +02:00
Eddie Hung
ded8308683 std::vector::resize() not reserve() 2018-08-09 21:03:07 -07:00
Eddie Hung
1514903ea9 Get rid of map lookup by borrowing udata to use as index into vector 2018-08-09 20:45:20 -07:00
Eddie Hung
e419b34027 Try with vector 2018-08-09 19:10:50 -07:00
Miodrag Milanovic
93a0d24560 Use settings for placer1 and router1 2018-08-09 18:39:10 +02:00
Clifford Wolf
f6189e4677 Merge branch 'master' of github.com:YosysHQ/nextpnr into constids 2018-08-08 19:35:13 +02:00
Clifford Wolf
e03ae50e21 Get rid of PortPin and BelType (ice40, generic, docs) 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-08-08 17:01:18 +02:00
Eddie Hung
d21e5a4b10 Disable assign_budget() after placement legalisation, unless slack redist 2018-08-08 07:58:01 -07:00
Eddie Hung
f048deb33d Restore initial assign_budget() call after pack(), restrict call after initial_placement to slack_redist 2018-08-05 22:55:58 -07:00
Clifford Wolf
5e53075990 API change: Use CellInfo* and NetInfo* as cell/net handles (common, ice40) 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-08-05 15:25:42 +02:00
Eddie Hung
0a14e20f73 Merge branch 'master' into slack_histogram 
Conflicts:
	common/placer1.cc
 2018-08-03 23:44:55 -07:00
David Shah
082b8bf272 clangformat 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-08-04 08:18:04 +02:00
David Shah
176a23936c Tidy up 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-08-04 08:15:49 +02:00
Eddie Hung
ecb264d002 Refactor timing.cc into Timing class 2018-08-03 22:39:25 -07:00
David Shah
b937e6defe Add constraint weight as a command line option 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-08-03 18:31:54 +02:00
David Shah
4a751d9aaf Add distance moved metrics, changing heuristics 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-08-03 18:14:09 +02:00
David Shah
aa8435df21 placer1: Experiment with adding 'constraint distance' metric 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-08-03 17:42:07 +02:00
David Shah
dc4ab55b27 Adding constraint satisfaction checks for debugging 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-08-03 16:59:45 +02:00
David Shah
fd2174149c Fixing constraint placement bugs 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-08-03 16:29:44 +02:00
David Shah
7e9209878c Reworking packer and placer to use new generic rel legaliser 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-08-03 15:00:32 +02:00
David Shah
26c68c4bcc Remove old place legaliser, set placement constraints instead (currently ignored by placer) 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-08-03 13:18:48 +02:00
Miodrag Milanovic
79b844f09c Removes unnecessary unlock causing trouble with placer 2018-08-01 20:32:15 +02:00
Eddie Hung
94161e646d Fix typo 2018-07-31 22:05:07 -07:00
Eddie Hung
9ea2467b0b Cope with slack_redist_iter == 0 2018-07-31 21:56:30 -07:00
Eddie Hung
720e815865 Add --slack_redist_iter for ice40 2018-07-31 19:07:39 -07:00
Eddie Hung
87438542e5 assign_budget() not quietly 2018-07-30 22:21:53 -07:00
Eddie Hung
07e2c9ba99 assign_budget() after initial placement, not after pack 2018-07-30 22:20:49 -07:00
Eddie Hung
de6d0d20d7 Merge update_budget into assign_budget; update as we go along 2018-07-28 14:10:48 -07:00
Eddie Hung
0eaa92bd6a Merge remote-tracking branch 'origin/master' into redist_slack 2018-07-28 12:51:37 -07:00
Eddie Hung
e0517caf1a Refactor 2018-07-28 12:50:21 -07:00
Sergiusz Bazanski
48713be0eb placer: only lock/unlock at beginning, yield elsewhere 2018-07-26 22:47:04 +01:00
Eddie Hung
b211dded3f Fix min_slack computation, and print out critical path after routing 2018-07-25 22:10:26 -07:00
Eddie Hung
9d489e8198 Retry clangformat 2018-07-25 18:34:14 -07:00
Eddie Hung
760a47779a Add compute_fmax() with refactoring, plus print out Fmax estimate post-place and post-route 2018-07-25 18:21:39 -07:00