| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: Tim Callahan <tcal@google.com>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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These operations are meaningless for a data structure that references
another structure relative to its location.
Signed-off-by: David Shah <dave@ds0.me>
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It's been confirmed that :
(1) this is required by the hardware
(2) icecube will force that field to 4'b1111 in fixed mode
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
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It has not actually been implemented in any router for over 2.5 years and causes nothing more than confusion. It can always be added back if it forms part of a future solution; possibly as part of a more general database structure rethink.
Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
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Fix arch checks, and add these to CI
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Signed-off-by: David Shah <dave@ds0.me>
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`if(NOT DEFINED)` is not appropriate since a variable that contains
`-NOTFOUND` still counts as `DEFINED`. This can cause issues if
configuration fails, writes `-NOTFOUND` to the cache, and is then
restarted.
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This helps make new nextpnr compatible with old chipdbs when a parameters
goes from single bit to multi bit.
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
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This requires the matching chipdb update from icestorm project !
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
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Port nextpnr-{ice40,ecp5} to WASI
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This involves very few changes, all typical to WASM ports:
* WASM doesn't currently support threads or atomics so those are
disabled.
* WASM doesn't currently support exceptions so the exception
machinery is stubbed out.
* WASM doesn't (and can't) have mmap(), so an emulation library is
used. That library currently doesn't support MAP_SHARED flags,
so MAP_PRIVATE is used instead.
There is also an update to bring ECP5 bbasm CMake rules to parity
with iCE40 ones, since although it is possible to embed chipdb into
nextpnr on WASM, a 200 MB WASM file has very few practical uses.
The README is not updated and there is no included toolchain file
because at the moment it's not possible to build nextpnr with
upstream boost and wasi-libc. Boost requires a patch (merged, will
be available in boost 1.74.0), wasi-libc requires a few unmerged
patches.
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Signed-off-by: Nathaniel Graff <nathaniel.graff@sifive.com>
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Signed-off-by: David Shah <dave@ds0.me>
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Wrong bits were being tested. [5:4] is what's controlling the output
enable path.
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
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Signed-off-by: David Shah <dave@ds0.me>
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Improve handling of unused inout port bits
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Signed-off-by: David Shah <dave@ds0.me>
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If the user specifies a custom install prefix, chances are icestrom/trellis
are also in that prefix rather than the hardcoded /usr/local
Fixes #351
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Follows PM discussion with Marcus Comstedt.
Extend changes in .bba file location (made in commit b6a7b60) to ice40 and MSVC cases,
so all cases become compatible with read-only access to git tree.
Only known down-side is inefficiency when building out-of-tree for multiple architectures;
people following that use case should consider using PREGENERATED_BBA_PATH.
It would be nice if there were less copy-paste in MSVC vs. non-MSVC content in family.cmake,
but that would have to be addressed by someone more skilled in Cmake and MSVC.
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: David Shah <dave@ds0.me>
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Signed-off-by: Clifford Wolf <clifford@clifford.at>
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Signed-off-by: David Shah <dave@ds0.me>
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Improve handling of top level IO and add SDF support
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