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1595c07260
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44 Commits

Author SHA1 Message Date
gatecat
1595c07260 router2: Add heatmap by routing resource type 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-05-20 14:54:23 +01:00
gatecat
ae8a910339 Revert "nexus: Enable placeAllAtOnce" 
This reverts commit 0abe425675.
 2021-05-06 15:51:54 +01:00
gatecat
0abe425675 nexus: Enable placeAllAtOnce 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-04-25 11:53:21 +01:00
gatecat
55fa8b7745 nexus: Fix copypasta 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-03-08 14:40:13 +00:00
gatecat
f0e30abf62 nexus: Fail gracefully when seeing special pins 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-03-05 12:15:58 +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
D. Shah
f5d2e245e1 nexus: Switch to BaseArch 
Signed-off-by: D. Shah <dave@ds0.me>
 2021-02-05 19:19:17 +00:00
Keith Rothman
c99fbde0eb Mark IdString and IdStringList single argument constructors explicit. 
Single argument constructors will silently convert to that type.  This
is typically not the right thing to do.  For example, the nexus and
ice40 arch_pybindings.h files were incorrectly parsing bel name strings,
etc.

Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
 2021-02-04 16:38:07 -08:00
D. Shah
6566a011b4 nexus: Implement IdStringList for all arch object names 
Signed-off-by: D. Shah <dave@ds0.me>
 2021-02-02 17:00:33 +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
9fe546f279 Rename Partition -> BelBucket. 
Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
 2021-02-02 07:34:56 -08:00
Keith Rothman
0338368afa Add Partition APIs to ice40, nexus, gowin archs. 
Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
 2021-02-02 07:34:56 -08:00
D. Shah
e049d5f2fc nexus: Switch from RelPtr to RelSlice 
This replaces RelPtrs and a separate length field with a Rust-style
slice containing both a pointer and a length; with bounds checking
always enforced.

Thus iterating over these structures is both cleaner and safer.

Signed-off-by: D. Shah <dave@ds0.me>
 2021-01-27 17:24:01 +00:00
David Shah
270efdca85 nexus: Add basic LRAM support (no init) 
Signed-off-by: David Shah <dave@ds0.me>
 2020-12-02 17:07:34 +00:00
David Shah
567166aece nexus: Fix db integrity check 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah
ca73e14cf9 nexus: Add post-place LUTFF optimisation 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah
df3c6dfe3e nexus: Preliminary integration of DSP timing data 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah
76543d05e7 nexus: Tweak heuristics to improve routeability 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah
6b5277638b nexus: Fix slow routing around DSPs 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah
c7ad3cece6 nexus: Tweak delay heuristics 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah
530d6ce9e9 nexus: Add EBR timing analysis 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah
9b89a82573 nexus: Add LUTRAM and WIDEFN9 timing support 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah
8c1f25cf31 timing: Add a few more cell types 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah
6457b4ca7b nexus: Swap sort order to make some lookups easier 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah
fa9194e3e2 nexus: Add cell delay lookup 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah
963fd175ad nexus: Lookup speed grade and pip delays 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah
00ff7c6cfe nexus: Default to router2 for now 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah
f749038959 nexus: Improve placer config 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah
8d1678f0ef nexus: Add stub GUI 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah
dfd6b6e39e nexus: Add a simple global routing pass 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah
c80144b7f0 nexus: Generate FASM files that can be used standalone 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah
9affda5626 nexus: Build and embed chipdb automatically 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah
0eb5c72cc5 nexus: Refactor cell pin style db 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah
df3866a800 nexus: Add IO packing 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah
12013b4c1f nexus: Lookup of package and IO pins 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah
0a1afe1f79 nexus: Infrastructure for constant/inv handling 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah
2b13b24cbe nexus: Bring up to date 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah
84d5426242 nexus: Working on validity checking 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah
44f98c545b nexus: Add global networks 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah
2c49f812d9 nexus: Add packing framework 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah
1e940323b0 nexus: Add main 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah
259659c838 nexus: Add more placeholder Arch functions 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah
65a59e9dcc nexus: Implement bel, wire and pip Arch functions 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah
ae1a486520 Add Arch constructor 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00