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125 Commits

Author SHA1 Message Date
Maciej Dudek
8c97cbe341 Fix chain swap 
Issue was due to dest_bels being not cleared between clusters unbindes, causing
newly bind bels to be unbinded and having their old bel value changed to new bel value.
Then when swap failed 2 cells were being bind to a single bel.

I tested leaving dest_bels in the function scope and moving it to the loop scope.
Code with dest_bels in the loop scope was faster than leaving it in the function scope,
and checking if the cell is in the processed cluster.

Signed-off-by: Maciej Dudek <mdudek@antmicro.com>
 2021-09-23 13:58:22 +02:00
gatecat
4d90850676 placer1: Remove redundant relative constraint check 
Macros with potentially inconsistent spacing are now permissible.

Signed-off-by: gatecat <gatecat@ds0.me>
 2021-09-22 13:14:45 +01:00
gatecat
e926cddca2 placer1: Fix cluster swap cost updates 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-09-18 11:11:24 +01:00
gatecat
f119f56e63 placer1: Allow swapping chains with other chains 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-09-17 21:51:18 +01:00
gatecat
2ffb081442 Fixing old emails and names in copyrights 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-06-12 13:22:38 +01:00
gatecat
dcbb322447 Remove redundant code after hashlib move 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-06-02 15:05:20 +01:00
gatecat
43b8dde923 Use hashlib in placers 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-06-02 15:04:49 +01:00
gatecat
579b98c596 Use hashlib for core netlist structures 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-06-02 14:27:56 +01:00
gatecat
14863bc04e Update placers to use new cluster APIs 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-05-06 11:47:07 +01:00
gatecat
8863b962fd interchange: Fix illegal placements 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-03-30 15:28:19 +01:00
Keith Rothman
351ca3b5ea Use NEXTPNR_NAMESPACE macro's now that headers are seperated. 
Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
 2021-03-15 18:49:12 +00:00
gatecat
8a4bf3a780 timing: Integration tweaks 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-03-05 10:04:35 +00:00
gatecat
5f6aaa2475 timing: Use new engine in SA except for budget-based mode 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-03-04 10:29:36 +00:00
gatecat
27fbee5233
Merge pull request #605 from litghost/add_placement_sanity_check 
Add placement sanity check in placer_heap.
 2021-03-02 08:27:12 +00:00
Keith Rothman
99a2262d61 Use scope in router1/2 and placer1. 
Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
 2021-03-01 09:43:39 -08:00
Keith Rothman
c65ba121e0 Prevent trival misplacements in placer1. 
Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
 2021-02-26 10:59:48 -08:00
gatecat
162793aa87 Refactor some common code to CellInfo methods 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-02-23 13:11:10 +00:00
gatecat
c7c13cd95f Remove isValidBelForCell 
This Arch API dates from when we were first working out how to
implement placement validity checking, and in practice is little used by
the core parts of placer1/HeAP and the Arch implementation involves a
lot of duplication with isBelLocationValid.

In the short term; placement validity checking is better served by the
combination of checkBelAvail and isValidBelForCellType before placement;
followed by isBelLocationValid after placement (potentially after
moving/swapping multiple cells).

Longer term, removing this API makes things a bit cleaner for a new
validity checking API.

Signed-off-by: gatecat <gatecat@ds0.me>
 2021-02-16 13:31:36 +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
6d23461bcd ecp5: Proof-of-concept using IdStringList for bel names 
This uses the new IdStringList API to store bel names for the ECP5. Note
that other arches and the GUI do not yet build with this
proof-of-concept patch.

getBelByName still uses the old implementation and could be more
efficiently implemented with further development.

Signed-off-by: D. Shah <dave@ds0.me>
 2021-02-02 17:00:12 +00:00
Keith Rothman
da74a425d2 Run "make clangformat". 
Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
 2021-02-02 07:44:49 -08:00
Keith Rothman
8d9390fc46 Fix regression in use of FastBels. 
Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
 2021-02-02 07:34:56 -08:00
Keith Rothman
2285c8dbbd Initial refactoring of placer API. 
Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
 2021-02-02 07:34:56 -08:00
D. Shah
94e8847d67 cleanup: Spelling fixes 
Signed-off-by: D. Shah <dave@ds0.me>
 2021-01-28 15:19:06 +00:00
David Shah
32e655d0af placer1: Unlock even if placement fails 
Prevents a hang during routing when using --force

Fixes #462

Signed-off-by: David Shah <dave@ds0.me>
 2020-06-29 16:39:31 +01:00
David Shah
2c7d2f9e0c placer1: Add routeability optimisation (off by default) 
Signed-off-by: David Shah <dave@ds0.me>
 2020-02-12 10:41:27 +00:00
David Shah
7bda6f15a9 placer1: Allow scaling HPWL differently in each direction 
Signed-off-by: David Shah <dave@ds0.me>
 2020-02-12 10:41:27 +00:00
David Shah
37543ad003 router2: debugging 
Signed-off-by: David Shah <dave@ds0.me>
 2020-02-03 11:38:31 +00:00
David Shah
1839a3a770 Major Property improvements for common and iCE40 
Signed-off-by: David Shah <dave@ds0.me>
 2019-08-05 14:52:15 +01:00
Miodrag Milanovic
831c7f2ef1 Speedup critical path 2019-06-28 13:43:55 +02:00
Miodrag Milanovic
be47fc3e9a clangformat run 2019-06-25 18:19:25 +02:00
Miodrag Milanovic
8d5724f4fd moved some context variables to settings 2019-06-15 15:23:51 +02:00
Miodrag Milanovic
95280060b8 No need for settings class 2019-06-15 13:09:49 +02:00
David Shah
cfcd657e32 clangformat 
Signed-off-by: David Shah <dave@ds0.me>
 2019-04-08 18:08:39 +01:00
David Shah
ad9bc627e6 placer1: Check correctness of incremental updates with --debug 
Signed-off-by: David Shah <dave@ds0.me>
 2019-04-08 18:08:26 +01:00
David Shah
65b2a76159 placer1: Improve incremental bounding box updates 
Signed-off-by: David Shah <dave@ds0.me>
 2019-04-07 15:55:07 +01:00
David Shah
25e3350675 HeAP: Make log output more consistent 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-25 15:39:15 +00:00
David Shah
efc6872341 placer1: Restore old weighting in budget-based mode 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-24 13:59:27 +00:00
David Shah
52e05f4a07 placer1: Fix regression moving chained cells pre-legalise 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-03-23 23:15:05 +01:00
David Shah
23f2fff1c8 clangformat 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:39:05 +00:00
David Shah
801675a2c6 placer1: Only get criticalities when in timing-driven mode 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
70a6379bf6 HeAP: Chain support 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
2e2f44c82e HeAP: tidying up 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
ba1e05f16b HeAP: Implement 'all+rotate' HeAP strategy 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
f3d9b45387 HeAP: Add SA-based iterative refinement after AP 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
4cf8549f5c placer1: Legalise after reaching a diameter, not temperature 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
9cd5980d35 placer1: Add (currently-unused) option for fanout threshold for timing cost calc 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-03-22 10:31:54 +00:00
David Shah
bd0a33022b placer1: Implement non-timing-driven mode 
Signed-off-by: David Shah <davey1576@gmail.com>
 2019-03-22 10:31:54 +00:00
David Shah
0118ac00c4 placer1: Improve handling of regions 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00
David Shah
ae33ff397f placer1: Consider regions during placement 
Signed-off-by: David Shah <dave@ds0.me>
 2019-03-22 10:31:54 +00:00