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53 Commits

Author SHA1 Message Date
gatecat 08c7f97b1e nexus: Support for hard DPHY 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-03-08 15:59:18 +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
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
D. Shah 5fc3e8e4d2 cleanup: Fix compiler warnings 
Signed-off-by: D. Shah <dave@ds0.me>
 2021-01-28 15:02:08 +00:00
David Shah 2c6caf4a9a nexus: Add MULTADDSUB9X9WIDE support 
Signed-off-by: David Shah <dave@ds0.me>
 2020-12-08 15:49:48 +00:00
David Shah f923d32620 nexus: Add support for initialised LRAM 
Signed-off-by: David Shah <dave@ds0.me>
 2020-12-07 11:57:10 +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 86e6a2225c nexus: Add PLL support 
Signed-off-by: David Shah <dave@ds0.me>
 2020-12-02 15:01:46 +00:00
David Shah b666c85824 nexus: Add support for deriving timing constraints in packer 
Signed-off-by: David Shah <dave@ds0.me>
 2020-12-02 09:44:17 +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 e3b3201d53 nexus: Clocked MULTADDSUB36X36 fix 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah 5cf7f01169 nexus: Add MULTADDSUB36X36 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah f795527454 nexus: Add MULTADDSUB18X18 support 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah edd719c5c5 nexus: ACC54 definitions 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah 91d746cfc8 nexus: Add DSP pre-adder support 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah fcde8e2d56 nexus: Fix DSP signed ports 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah d8e748bc58 nexus: Refactor DSP macro splitting to make it more generic 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah 30c65931b2 nexus: Add support for clocked MULT9X9s 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah 9203181625 nexus: Support for unclocked 9x9 multiplies 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah d9a19897c4 nexus: More DSP primitive config 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah 094bf419d4 nexus: Miscellaneous DSP infrastructure 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah 90608f2c89 nexus: Add some infrastructure for DSP packing 
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 fa9194e3e2 nexus: Add cell delay lookup 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah 0a59cbb8ce nexus: Use dedicated Vcc routing for OXIDE_COMB pins 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah e6c2887773 nexus: Basic support for carries 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah c89d830e16 nexus: Add WIDEFN9 support 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah f8dca82a71 nexus: Basic support for differential IO types 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:28 +00:00
David Shah e8e6316f88 nexus: EBR fixes 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah 27ecaf3e88 nexus: EBR FASM generation 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah 4503608c7c nexus: Add packing rules for BRAM 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah cbf99d5e53 nexus: LUTRAM support 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah 40441d83cd nexus: Promote and place global buffers 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah 7645354917 nexus: More global placement infrastructure 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah 2df4d212c3 nexus: Bel search function for DCC placement 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah da1e3c8612 nexus: Add constant/inversion packing 
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 10ad7d9cfe nexus: IO packing fix 
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 518ead2e2d nexus: IO pre-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 2f822a3b79 nexus: Packing helper functions 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah 53d1c2c309 nexus: Fix validity checking 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah 682351df7f nexus: Updates and fixes 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah e54aa836a4 nexus: Updates 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00
David Shah a586bfc290 nexus: Support Lattice-style parameters 
Signed-off-by: David Shah <dave@ds0.me>
 2020-11-30 08:45:27 +00:00