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48 Commits

Author SHA1 Message Date
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
f05d024666 ecp5: Use snake case for arch-specific functions 
This makes the difference clearer between the general arch API that
everyone must implement; and helper functions specific to one arch.

Signed-off-by: D. Shah <dave@ds0.me>
 2021-02-03 10:53:08 +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
David Shah
43fd9e6779 ecp5: Fix placement of DCCs to guarantee routeability 
Signed-off-by: David Shah <dave@ds0.me>
 2020-06-10 15:47:47 +01:00
David Shah
3c60ea383d ecp5: Improve global routing robustness 
Signed-off-by: David Shah <dave@ds0.me>
 2020-05-14 13:12:30 +01:00
David Shah
2aaef61547 ecp5: Don't promote VCC/GND to globals even if connected to clock port 
Signed-off-by: David Shah <dave@ds0.me>
 2020-05-14 13:07:59 +01:00
David Shah
64d3e3e1e8 ecp5: Use dedicated routing for ECLKs where possible 
Signed-off-by: David Shah <dave@ds0.me>
 2020-04-14 19:20:13 +01:00
David Shah
9dc8e1e35d ecp5: Don't reroute existing globals 
Signed-off-by: David Shah <dave@ds0.me>
 2020-01-20 14:58:38 +00:00
David Shah
0d43aff268 ecp5: Always promote IOLOGIC SCLK to global 
Fixes #374

Signed-off-by: David Shah <dave@ds0.me>
 2019-12-27 15:53:00 +00:00
David Shah
08cf545d9b Revert "Merge pull request #355 from YosysHQ/ecp5-promote-lsr" 
This reverts commit 6a7d1fe53d, reversing
changes made to c3d4117a21.
 2019-11-20 17:10:11 +00:00
David Shah
67e216f8fb ecp5: Add support for promotion of LSRs to global network 
Signed-off-by: David Shah <dave@ds0.me>
 2019-11-19 14:08:35 +00:00
David Shah
04be9a71f9 ecp5: Add support for clock gating with DCCA 
Signed-off-by: David Shah <dave@ds0.me>
 2019-08-31 10:45:12 +01:00
Arnaud Durand
a26c9bb6d9 Rename clock restriction attribute to "noglobal" 2019-08-24 18:09:42 +02:00
Arnaud Durand
a947f09bfb Restrict clock promotion to global 2019-08-22 00:43:03 +02:00
David Shah
661237eb64 ecp5: Add --out-of-context for building hard macros 
Signed-off-by: David Shah <dave@ds0.me>
 2019-08-07 14:22:47 +01:00
David Shah
ec48f8f464 ecp5: New Property interface 
Signed-off-by: David Shah <dave@ds0.me>
 2019-08-05 17:22:37 +01:00
David Shah
15a1d4f582 ecp5: Use an attribute to store is_global 
Signed-off-by: David Shah <dave@ds0.me>
 2019-06-07 11:55:20 +01:00
David Shah
4ec2bd1e5d ecp5: Fix global clock routing with multiclock DPRAM 
Signed-off-by: David Shah <dave@ds0.me>
 2019-02-25 11:49:25 +00:00
David Shah
c01bb88509 ecp5: Add IOLOGIC timing and bitstream; ODDR working 
Signed-off-by: David Shah <dave@ds0.me>
 2018-12-14 16:40:38 +00:00
David Shah
5ddf99cf5d ecp5: Pre-place PLLs and use dedicated routes into globals 
Signed-off-by: David Shah <dave@ds0.me>
 2018-11-30 16:09:56 +00:00
David Shah
084f9cf63f ecp5: DCU clocking fixes 
Signed-off-by: David Shah <dave@ds0.me>
 2018-11-15 11:30:27 +00:00
David Shah
0eba7d9789 ecp5: EXTREFB fixes 
Signed-off-by: David Shah <dave@ds0.me>
 2018-11-15 11:30:27 +00:00
David Shah
37cbabecfb ecp5: remove debug and clangformat 
Signed-off-by: David Shah <dave@ds0.me>
 2018-11-15 11:30:27 +00:00
David Shah
4f8dfd8e1b ecp5: Prefer DCCs with dedicated routing when placing DCCs 
Signed-off-by: David Shah <dave@ds0.me>
 2018-11-15 11:30:27 +00:00
David Shah
d3ad522bfe ecp5: Copy clock constraints during global promotion 
Signed-off-by: David Shah <dave@ds0.me>
 2018-11-12 14:03:58 +00:00
David Shah
e005cc6754 ecp5: Add PLL support 
Signed-off-by: David Shah <dave@ds0.me>
 2018-10-31 19:52:41 +00:00
David Shah
24a2feda30 ecp5: Separate global promotion and routing 
Signed-off-by: David Shah <dave@ds0.me>
 2018-10-31 16:22:34 +00:00
David Shah
1fc2318c53 ecp5: Optimise DCC placement 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-10-14 13:22:47 +01:00
David Shah
8cbc92b7f3 ecp5: Small DRAM routing fixes 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-10-01 18:45:14 +01:00
David Shah
c8a9bb807c ecp5: Debugging DRAM packing 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-10-01 17:45:35 +01:00
David Shah
0e0ad26f07 ecp5: Use ArchNetInfo to mark global nets to ignore 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-29 19:31:49 +01:00
David Shah
ab063b2456 clangformat 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-29 18:37:17 +01:00
David Shah
11cdc197bc ecp5: Fix global buffer connectivity and timing 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-29 18:29:23 +01:00
David Shah
f46f205782 ecp5: Fix handling of global to fabric connections 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-29 18:06:08 +01:00
David Shah
5e46d1eb98 ecp5: Remove excessive debugging from global promoter 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-29 17:38:39 +01:00
David Shah
c2a062d254 ecp5: Fixing global to global user routing 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-29 17:13:50 +01:00
David Shah
9ff5d5a735 ecp5: Fixing global router bugs 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-29 17:01:19 +01:00
David Shah
2a0bb2be29 ecp5: Integrate global router and debug naming 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-29 16:49:29 +01:00
David Shah
4cd582478b ecp5: Adding main global promoter/router function 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-29 16:37:18 +01:00
David Shah
f7a270a1d8 ecp5: Fix globals.cc following API update 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-29 16:15:17 +01:00
David Shah
c8674652dc ecp5: Add SPINE routing to global router 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-29 16:09:21 +01:00
David Shah
dfdaaa6f57 ecp5: Adding DCCA insertion function 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-29 16:09:21 +01:00
David Shah
97b12fa741 ecp5: Add DCC Bels, fix global router post-rebase 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-29 16:09:21 +01:00
David Shah
bc10a5646d ecp5: Working on global router 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-29 16:06:30 +01:00
David Shah
d43138b022 ecp5: Global routing algorithm up to TAPs 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-29 16:06:30 +01:00
David Shah
7d48acff52 ecp5: Clock usage counter function 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-29 16:06:30 +01:00
David Shah
30f122854a ecp5: Helper function and arch tweaks for global router 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-29 16:06:30 +01:00