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| author | Keith Rothman <537074+litghost@users.noreply.github.com> | 2021-01-28 16:48:22 -0800 |
|---|---|---|
| committer | Keith Rothman <537074+litghost@users.noreply.github.com> | 2021-02-02 07:34:56 -0800 |
| commit | b4160c228e789639dc9f434100976c5eb1f95d8d (patch) | |
| tree | 7a17215b2435a7a9531f1436bffc9b518e91f752 /docs | |
| parent | f3a7c691a317fafd48b9142ff0c688e75bbb6424 (diff) | |
| download | nextpnr-b4160c228e789639dc9f434100976c5eb1f95d8d.tar.gz nextpnr-b4160c228e789639dc9f434100976c5eb1f95d8d.tar.bz2 nextpnr-b4160c228e789639dc9f434100976c5eb1f95d8d.zip | |
Add archcheck for partition methods.
Signed-off-by: Keith Rothman <537074+litghost@users.noreply.github.com>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/archapi.md | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/docs/archapi.md b/docs/archapi.md index 3a0efcce..53132bd9 100644 --- a/docs/archapi.md +++ b/docs/archapi.md @@ -88,6 +88,14 @@ Get Z dimension for the specified tile for bels. All bels with at specified X an Get Z dimension for the specified tile for pips. All pips with at specified X and Y coordinates must have a Z coordinate in the range `0 .. getTileDimZ(X,Y)-1` (inclusive). +Cell Methods +----------- + +### const\_range\<IdString\> getCellTypes() const + +Get list of cell types that this architecture accepts. + + Bel Methods ----------- @@ -478,8 +486,8 @@ information for all edges. `index` must be in [0, clockInfoCount), behaviour is Partition Methods ----------------- -Partitions are used by analytic placement to seperate types of BELs during -placement. Typical partitions are: +Partitions are subsets of BelIds and cell types used by analytic placement to +seperate types of BELs during placement. Typical partitions are: - All LUT BELs - All FF BELs - All multipliers BELs @@ -487,7 +495,8 @@ placement. Typical partitions are: - etc. The general rule here is to include all BELs that are roughly interchangable -during placement. +during placement. Partitions should form an exact cover over all BelIds and +cell types. ### const\_range\<PartitionId\> getPartitions() const @@ -497,8 +506,16 @@ Return a list of all partitions on the device. Return the name of the partition. +### PartitionId getPartitionByName(IdString partition\_name) const + +Return the partition for the specified partition name. + ### PartitionId getPartitionForBel(BelId bel) const +Returns the partition for a particular BEL. + +### PartitionId getPartitionForCell(IdString cell\_type) const + Returns the partition for a particular cell type. ### const\_range\<BelId\> getBelsForPartition(PartitionId partition) const |