This is useful for certain cross-compilation workloads, and to cache
rarely changing build products.
To use this functionality, build e.g. as follows:
cmake . -B build-export -DEXPORT_BBA_FILES=../bba-files -DARCH=all
cmake --build build-export -t nextpnr-all-bba
cmake . -B build-import -DIMPORT_BBA_FILES=../bba-files -DARCH=all
cmake --build build-import
Two user-visible changes were made:
* `-DUSE_RUST` is replaced with `-DBUILD_RUST`, by analogy with
`-DBUILD_PYTHON`
* `-DCOVERAGE` was removed as it doesn't work with either modern GCC
or Clang
Primarily, this commit makes both of them use the `BBAsm` functions
to build and compile `.bba` files.
In addition, Himbaechel targets are now aligned with the rest in
how they are configured: instead of having all uarches enabled with
all of the devices disabled (the opposite of the rest of nextpnr),
uarches must be enabled explicitly but they come with all devices
enabled (except for Xilinx, which does not have a list of devices).
While it served a purpose (granting the ability to build `.bba` files
separately from the rest of nextpnr), it made things excessively
convoluted, especially around paths.
This commit removes the ability to pre-generate chip databases. As far
as I know, I was the primary user of that feature. It can be added back
if there is demand for it.
In exchange the per-family `CMakeLists.txt` files are now much easier
to understand.
Erroneously created wires for specific IOs on the underside of some
chips.
Fixes https://github.com/YosysHQ/nextpnr/issues/1417
Also cosmetic edits.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. Add the ability to place registers in IOB
IO blocks have registers: for input, for output and for OutputEnable
signal - IREG, OREG and TREG respectively.
Each of the registers has one implicit non-switched wire, which one
depends on the type of register (IREG has a Q wire, OREG has a D wire).
Although the registers can be activated independently of each other they
share the CLK, ClockEnable and LocalSetReset wires and this places
restrictions on the possible combinations of register types in a single
IO.
Register placement in IO blocks is enabled by specifying the command
line keys --vopt ireg_in_iob, --vopt oreg_in_iob, or --vopt ioreg_in_iob.
It should be noted that specifying these keys leads to attempts to place
registers in IO blocks, but no errors are generated in case of failure.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. Registers in IO
Check for unconnected ports.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. IO regs. Verbose warnings.
If an attempt to place an FF in an IO block fails, issue a warning
detailing the reason for the failure, whether it is a register type
conflict, a network requirement violation, or a control signal conflict.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. BUGFIX. Fix FFs compatibility.
Flipflops with a fixed ClockEnable input cannot coexist with flipflops
with a variable one.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. FFs in IO. Changing diagnostic messages.
Placement modes are still specified by the command line keys
ireg_in_iob/oreg_in_iob/ioreg_in_iob, but also introduces more granular
control in the form of attributes at I/O ports:
(* NOIOBFF *) - registers are never placed in this IO,
(* IOBFF *) - registers must be placed in this IO, in case of failure
a warning (not an error) with the reason for nonplacement is issued,
_attribute_absence_ - no diagnostics will be issued: managed to place - good, failed - not bad either.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. Registers in IO.
Change the logic for handling command line keys and attributes -
attributes allow routines to be placed in IO regardless of global mode.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. Registers in IO. Fix style.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
---------
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
Adds additional restrictions on the first PIP after the clock source -
only connections to SPINEs are allowed. This allowed to correct the
behaviour of DQCEs since the latter can only disable/enable SPINEs.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* 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>
* Gowin. Add IODELAY.
Input/Output delay (IODELAY) is programmable delay uint in IO block.
This delay line is enabled before/after the IO pad and allows the signal
to be delayed statically or dynamically during 0-127 stages each lasting
from 18 to 30 picoseconds depending on the chip family.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. Replacing assertions with log_error.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
---------
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
Add sampling part to IO blocks (input only). This edge detector will
allow to dynamically adjust DDR decoding window in the future.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Extend Himbaechel API with gfx drawing methods
* Add bel drawing in example uarch
* changed API and added tile wire id in db
* extend API so we can distinguish CLK wires
* added bit more wires
* less horrid way of handling gfx ids
* loop wire range
* removed not needed brackets
* bump database version to 5
* Removed not used GfxFlags
* Gowin. FFs placement.
* Allow clusters to be created from FFs and LUTs;
* Immediately create pass-through LUTs from free LUTs adjacent to FF - at the same time ensure alternating use of LUT inputs;
* In case of constant networks, such pass-through LUTs are disconnected from networks altogether;
* Allow FF to be placed directly into SSRAM slides - this is useful when using synchronous reading.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. Fix aux name creation
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. Use I3 for pass-trough LUTs
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
---------
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. Fix the port check for connectivity.
What happens is that it's not enough to check for a network, we also
need to make sure that the network is functional: has src and sinks.
And the style edits - they get automatically when I make sure to run
clang-format10.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. Fix the port check for connectivity.
What happens is that it's not enough to check for a network, we also
need to make sure that the network is functional: has src and sinks
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
---------
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. Implement the EMCU primitive.
Add support for the GW1NSR-4C's embedded Cortex-M3 processor. Since it
uses flash in its own way, we disable additional flash processing for
this case.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. Fix merge.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
---------
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. Add DHCEN primitive.
This primitive allows you to dynamically turn off and turn on the
networks of high-speed clocks.
This is done tracking the routes to the sinks and if the route passes
through a special HCLK MUX (this may be the input MUX or the output MUX,
as well as the interbank MUX), then the control signal of this MUX is
used.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. Change the DHCEN binding
Use the entire PIP instead of a wire - avoids normalisation and may also
be useful in the future when calculating clock stuff.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
---------
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
Some Clocks PIPS were not created due to a check for the presence of a
delay class, now all wires are attributed to the class so that there is
no longer any need for this check.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. Implement the UserFlash primitive
Some Gowin chips have embedded flash memory accessible from the fabric.
Here we add primitives that allow access to this memory.
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
* Gowin. Fix cell creation
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
---------
Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
