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534e69fbff
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169 Commits

Author SHA1 Message Date
gatecat
534e69fbff timing: Add port-domain tracking 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-03-04 10:29:36 +00:00
gatecat
7a546b1554 timing: Add topological sort from Yosys 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-03-04 10:29:36 +00:00
gatecat
d0772ce1e3 timing: Import cell delays to our own structures 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-03-04 10:29:36 +00:00
gatecat
c0a7cff304 Demote the 'no clocks' warning to info and make clearer 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-02-20 20:15:52 +00:00
gatecat
7922b3bfc4 Replace DelayInfo with DelayPair/DelayQuad 
This replaces the arch-specific DelayInfo structure with new DelayPair
(min/max only) and DelayQuad (min/max for both rise and fall) structures
that form part of common code.

This further reduces the amount of arch-specific code; and also provides
useful data structures for timing analysis which will need to delay
with pairs/quads of delays as it is improved.

While there may be a small performance cost to arches that didn't
separate the rise/fall cases (arches that aren't currently separating
the min/max cases just need to be fixed...) in DelayInfo, my expectation
is that inlining will mean this doesn't make much difference.

Signed-off-by: gatecat <gatecat@ds0.me>
 2021-02-19 11:31:33 +00:00
gatecat
535723f414 Start making use of getBelPinsForCellPin API 
This replaces getNetinfoSinkWire with 3 new functions for different use
cases.

At the moment all existing code has been moved to getNetinfoSinkWire
with phys_idx=0 so the build doesn't break; but this won't yet function
properly with more than one sink. But it provides a base on which to
work on refactoring the routers to support this case.

Signed-off-by: gatecat <gatecat@ds0.me>
 2021-02-10 14:18:12 +00:00
D. Shah
9388df19d3 refactor: Replace getXName().c_str(ctx) with ctx->nameOfX 
This makes the ongoing migration to IdStringList easier.

Signed-off-by: D. Shah <dave@ds0.me>
 2021-02-02 17:00:14 +00:00
D. Shah
94e8847d67 cleanup: Spelling fixes 
Signed-off-by: D. Shah <dave@ds0.me>
 2021-01-28 15:19:06 +00:00
D. Shah
6ecf7f86c8 cleanup: Remove dead/unused code 
Note that some '#if 0' code that might still be useful for debugging in
the future has been retained.

Signed-off-by: D. Shah <dave@ds0.me>
 2021-01-28 14:59:13 +00:00
Ross Schlaikjer
c30cadd19c
No longer need fstream include 2020-08-30 18:22:05 -04:00
Ross Schlaikjer
cba4753c22
Only print filenames for now, default on 2020-08-30 18:19:41 -04:00
Ross Schlaikjer
a8c110b045
Add option to print critical path source code 
In order to make debugging the critical path easier, add an option that
will log the location each net was defined, if known.
If the file that contains the definition is known, and is readable, also
print the part of the source HDL responsible for the signal definition.
 2020-08-30 17:43:29 -04:00
David Shah
109aa63474 clangformat 
Signed-off-by: David Shah <dave@ds0.me>
 2020-08-20 09:46:49 +01:00
David Shah
3611b7120c timing: Fix counting of fanin in out-of-context mode 
Signed-off-by: David Shah <dave@ds0.me>
 2020-08-12 10:42:26 +01:00
Eddie Hung
e6b85f1bc0 Fix embarassing use of topographical when meaning topological 2020-05-14 08:55:28 -07:00
David Shah
564f40f6db timing: Improve robustness to dangling/undriven logic 
Signed-off-by: David Shah <dave@ds0.me>
 2020-03-17 10:07:21 +00:00
David Shah
f28186bb1b timing: Fix critical path walking for ECP5 
Signed-off-by: David Shah <dave@ds0.me>
 2019-11-18 21:34:32 +00:00
David Shah
fba7c2caef timing: Improve support for out-of-context flows 
Signed-off-by: David Shah <dave@ds0.me>
 2019-08-07 16:51:29 +01:00
Miodrag Milanovic
be47fc3e9a clangformat run 2019-06-25 18:19:25 +02:00
Miodrag Milanovic
ec47ce2320 Merge master 2019-06-25 18:14:51 +02:00
David Shah
fa77a5ae4a clangformat 
Signed-off-by: David Shah <dave@ds0.me>
 2019-06-24 11:43:01 +01:00
David Shah
e5c21afc7c timing: Add missing std::min 
Signed-off-by: David Shah <dave@ds0.me>
 2019-06-23 15:01:58 +01:00
Miodrag Milanovic
8d5724f4fd moved some context variables to settings 2019-06-15 15:23:51 +02:00
whitequark
f3339961fe Fix missing \n in log statement. 2019-06-04 13:15:23 +00:00
David Shah
23f2fff1c8 clangformat 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:39:05 +00:00
David Shah
bd12c0a486 HeAP: Add PlacerHeapCfg 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
c926b273de placer1: Tweaks 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-03-22 10:31:54 +00:00
Miodrag Milanovic
0bcf57bd47 Add flag timing-allow-fail to allow PnR to pass with warning 2019-03-04 12:29:19 +01:00
David Shah
89de4caf6c timing: Fix negative slack overflow issue 
Signed-off-by: David Shah <dave@ds0.me>
 2019-02-25 11:49:25 +00:00
David Shah
55b0b60d9d ecp5: Router performance improvements 
Signed-off-by: David Shah <dave@ds0.me>
 2019-02-25 11:49:25 +00:00
Eddie Hung
63a7f57b01 [timing] Fix off-by-one error 2019-02-11 08:32:01 -08:00
Eddie Hung
a520b38424
Merge pull request #226 from YosysHQ/190207 
Fix slack_histogram computation accessing num_bins+1
 2019-02-09 10:16:23 -08:00
Eddie Hung
f9f15e79cd Fix slack_histogram computation accessing num_bins+1 2019-02-07 09:26:41 -08:00
David Shah
564a7e27b1 timing: Add --ignore-loops option 
Signed-off-by: David Shah <dave@ds0.me>
 2019-02-05 08:20:05 +01:00
David Shah
cc53c312de timing: Path related fixes 
Signed-off-by: David Shah <dave@ds0.me>
 2019-01-27 16:45:37 +00:00
David Shah
f4d4244534 timing: Fix critical path print 
Signed-off-by: David Shah <dave@ds0.me>
 2018-12-13 12:10:18 +00:00
David Shah
56dfd5564a timing: Fix xclock crit calc and compiler warnings 
Signed-off-by: David Shah <dave@ds0.me>
 2018-12-06 10:53:01 +00:00
David Shah
f53dc8d3c9 timing_opt: Improve heuristics 
Signed-off-by: David Shah <dave@ds0.me>
 2018-12-06 10:53:01 +00:00
David Shah
a990a1576c timing_opt: Fix criticality and cost calculations 
Signed-off-by: David Shah <dave@ds0.me>
 2018-12-06 10:53:01 +00:00
David Shah
0f40e5fe8c timing: Fixes to criticality calculation 
Signed-off-by: David Shah <dave@ds0.me>
 2018-12-06 10:53:01 +00:00
David Shah
254c5ea359 clangformat 
Signed-off-by: David Shah <dave@ds0.me>
 2018-12-06 10:53:01 +00:00
David Shah
e1c74ad3db timing_opt: Fixes including single-move legality 
Signed-off-by: David Shah <dave@ds0.me>
 2018-12-06 10:53:01 +00:00
David Shah
2de506c071 timing_opt: Functions to calculate arc delay limits 
Signed-off-by: David Shah <dave@ds0.me>
 2018-12-06 10:53:01 +00:00
David Shah
83e3277577 timing_opt: Implement neighbour Bel finder 
Signed-off-by: David Shah <dave@ds0.me>
 2018-12-06 10:53:01 +00:00
David Shah
9a42b64a68 timing: Add criticality calculation to timing analysis 
Signed-off-by: David Shah <dave@ds0.me>
 2018-12-06 10:53:01 +00:00
David Shah
fe670cf3f6 clangformat 
Signed-off-by: David Shah <dave@ds0.me>
 2018-11-26 09:37:39 +00:00
David Shah
22ac41d627
Merge pull request #138 from YosysHQ/refactor_log 
Tidy up logging code, add log file support, make timing failures non-fatal errors
 2018-11-26 09:37:07 +00:00
David Shah
b035cb9fcf Add nonfatal error support and use for timing failures 
Signed-off-by: David Shah <dave@ds0.me>
 2018-11-26 09:22:42 +00:00
David Shah
51d1363dfe Change the log level of some timing-related messages 
Signed-off-by: David Shah <dave@ds0.me>
 2018-11-21 17:13:53 +00:00
David Shah
72b53016c0 timing: Improve crit path statistics 
Signed-off-by: David Shah <dave@ds0.me>
 2018-11-16 16:24:06 +00:00