nextpnr/himbaechel/uarch/ng-ultra/cells.cc
Miodrag Milanović 5a807110de
Adding NanoXplore NG-Ultra support (#1397)
* ng-ultra: new architecture

* Implementation as in D2 deliverable

* Support for nxdesignsuite-24.0.0.0-20240429T102300

* Save memory by directly outputing json

* Add support for bidirectional IOs

* cleanup

* Create BFRs properly

* Add IOM insertion

* Cleanup

* Block certain pips depending of DDFR mode

* Add LUT bypass to improve routability

* Add bypass for CSC mode of GCK

* Fix IOM case

* Initial memory support

* Better RF/XRF handling

* fix

* RF placement and legalization

* Disconnect non available ports for NX_RAM

* cleanup

* Add RFB/RAM context support for latest release

* Remove ports that must not be used

* Proper port used only on RFB

* Add structure for clock sinks

* Use cell type where applicable

* Add clock sinks for other cell types

* Validation check fixes

* Commented too restrictive placement

* Added more crossbar wire type

* Hande IO termination input

* Fail early due to NX tools limitation for now

* Validations and fixes for RAM I/Os

* Fix for latest version of tools

* Use ctx->idf where applicable

* warn if RAM ports are not actually used

* Fix IOM packing

* Fix CY packing

* Change how constants are handled on CY

* Post placement optimization for CY

* Address comments for PR

* pack and export  GCK, WFG and PLL

* Cover more global routing cases

* Constraing to location if provided

* Place at LOC

* Pack and export DSP

* wip

* wip

* notes

* wip

* wip

* Validate DSPs

* DSP cascading

* Check mandatory parameters for DSP

* existing gck

* wip

* export all the rest for bitstream

* CDC packing

* add more sinks

* place FIFO

* map rest of FIFO ports

* enable pll by default

* cleanup

* Initial XLUT support

* Fix statistics

* Properly duplicate GCKs

* RRSTO and WRSTO are not used on XFIFO

* Fix for latest version of JSON format

* Implement GCK limitations

* cleanup

* cleanup

* Add more signals and use lowskew name

* cleanup code a bit

* Fix wfb

* detect cascaded GCKs

* Handle DFR

* Route dfr clock properly

* Cleanup

* Cleanup bitstream code

* Review issues addressed

* Move helper routines

* Expose private members for unit tests

* cleanup

* remove scale factor

* make all location helper arrays static

* Addressed review comments

* Support post-routing CSC and SCC

* Support NX_BFF

* Place CSS and SCC only on allowed locations

* Support latest Impulse

* ng_ultra: Expand bounding box further for left-edge IO

Signed-off-by: gatecat <gatecat@ds0.me>

* Export all IO parameters in bitstream

* Handle new CSV order or parameters and additional validation

* Add some more undocumented values for CSV

* Support for old and new CSV formats

* Initial DDFR support

* Display warning message once per file

* Address review issues

* Fix crash on memory access

* Make boundbox fit NG-Ultra internal design

* Update attributes after dff rewrite

* Implement basic NG-Ultra LUT-DFF unit tests

* Always use first seen xbar input

Signed-off-by: gatecat <gatecat@ds0.me>

* Simplified crossbar pip detection

* Change order to prevent issues with some unconnected constants

* Pack LUT and multiple DFF in stripe

* Place DFF chains

* Improve large DFF chains

* Rename to pack_dff_chains

* Better use XLUTs when possible

* pack output DFF together with XLUT

* option to disable XLUT optimiziations

* Make more optimizations optional

* fix to use pre-increment

* GCK for lowskew signals

* Bugfix for nets that are not part of lowskew network

* Fix bitstream export for PLL cell

* Remove separate route lowskew

* Allow WFG mode 2

* Merge inverter into GCK

* Add CSC per TILE when needed

* Improve reusage of existing cell for CSC

* Take preferred CSC

* Cleanup

* When in place CSC size not important

* Cleanup

* Reset and Load restriction

* make csc optimisation optional

* Proper count for IO resources

* Detect when there is no next cell for DSP chain

* Do not incorporate loops in XLUT

* Check if output exists

* Update copyright for delivery

* Make building NG-Ultra chip database optional, follow filename convention

* Ported drawing code to new API

* Update expandBoundingBox for NG-Ultra

* Copyright and license update

* Add README information

* cleanup and constids

* Using ctx->idf where applicable

* remove if_using_basecluster

* refactor extra data usage

* refactor to use create_cell_ptr only

* optimized getCSC

* optimize critical path a bit

* clangformat

* disable clangformat where applicable

---------

Signed-off-by: gatecat <gatecat@ds0.me>
Co-authored-by: Lofty <dan.ravensloft@gmail.com>
Co-authored-by: gatecat <gatecat@ds0.me>
2024-12-04 09:00:05 +01:00

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2.8 KiB
C++

/*
* nextpnr -- Next Generation Place and Route
*
* Copyright (C) 2024 The Project Beyond Authors.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
#include "nextpnr.h"
#include "pack.h"
#define HIMBAECHEL_CONSTIDS "uarch/ng-ultra/constids.inc"
#include "himbaechel_constids.h"
NEXTPNR_NAMESPACE_BEGIN
CellInfo *NgUltraPacker::create_cell_ptr(IdString type, IdString name)
{
CellInfo *cell = ctx->createCell(name, type);
auto add_port = [&](const IdString id, PortType dir) {
cell->ports[id].name = id;
cell->ports[id].type = dir;
};
if (type == id_BEYOND_FE) {
add_port(id_I1, PORT_IN);
add_port(id_I2, PORT_IN);
add_port(id_I3, PORT_IN);
add_port(id_I4, PORT_IN);
add_port(id_LO, PORT_OUT);
add_port(id_DI, PORT_IN);
add_port(id_L, PORT_IN);
add_port(id_CK, PORT_IN);
add_port(id_R, PORT_IN);
add_port(id_DO, PORT_OUT);
} else if (type == id_BFR) {
add_port(id_I, PORT_IN);
add_port(id_O, PORT_OUT);
} else if (type == id_DFR) {
add_port(id_I, PORT_IN);
add_port(id_O, PORT_OUT);
add_port(id_L, PORT_IN);
add_port(id_CK, PORT_IN);
add_port(id_R, PORT_IN);
} else if (type == id_DDFR) {
add_port(id_I, PORT_IN);
add_port(id_O, PORT_OUT);
add_port(id_L, PORT_IN);
add_port(id_CK, PORT_IN);
add_port(id_R, PORT_IN);
add_port(id_I2, PORT_IN);
add_port(id_O2, PORT_OUT);
add_port(id_CKF, PORT_IN);
} else if (type == id_IOM) {
add_port(id_P17RI, PORT_IN);
add_port(id_CKO1, PORT_OUT);
add_port(id_P19RI, PORT_IN);
add_port(id_CKO2, PORT_OUT);
} else if (type == id_WFB) {
add_port(id_ZI, PORT_IN);
add_port(id_ZO, PORT_OUT);
} else if (type == id_GCK) {
add_port(id_SI1, PORT_IN);
add_port(id_SI2, PORT_IN);
add_port(id_CMD, PORT_IN);
add_port(id_SO, PORT_OUT);
} else {
log_error("Trying to create unknown cell type %s\n", type.c_str(ctx));
}
return cell;
}
NEXTPNR_NAMESPACE_END