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Add missing documentation

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Signed-off-by: Mohamed Gaber <donn@efabless.com>
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Mohamed Gaber
2023-07-07 21:43:47 +03:00
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parent 09cfff0dbb
commit 21f54716ea
1 changed files with 4 additions and 3 deletions
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docs/source/reference/configuration.md
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@@ -230,10 +230,11 @@ These variables worked initially, but they were too sky130 specific and will be
| `GLB_OPTIMIZE_MIRRORING` | Specifies whether or not to run an optimize_mirroring pass whenever detailed placement happens after Routing timing optimization. This pass will mirror the cells whenever possible to optimize the design. 1 = Enabled, 0 = Disabled. <br> (Default: `1`) |
| `GRT_ALLOW_CONGESTION` | Allow congestion in the resulting guides. 0 = false, 1 = true <br> (Default: `0`)
| `GRT_OVERFLOW_ITERS` | The maximum number of iterations waiting for the overflow to reach the desired value. <br> (Default: `50`) |
| `GRT_ANT_ITERS` | The maximum number of iterations for global router repair_antenna. This option is only available when `GRT_REPAIR_ANETNNAS` is enabled. <br> (Default: `15`) |
| `GRT_ANT_MARGIN` | The margin to over fix antenna violations in global routing as a percentage. This option is only available when `GRT_REPAIR_ANETNNAS` is enabled. <br> (Default: `10`) |
| `GRT_ANT_ITERS` | The maximum number of iterations for global router repair_antenna. This option is only available when `GRT_REPAIR_ANTENNAS` is enabled. <br> (Default: `15`) |
| `GRT_ANT_MARGIN` | The margin to over fix antenna violations in global routing as a percentage. This option is only available when `GRT_REPAIR_ANTENNAS` is enabled. <br> (Default: `10`) |
| `GRT_ESTIMATE_PARASITICS` | Specifies whether or not to run STA after global routing using OpenROAD's estimate_parasitics -global_routing and generates reports under `logs/routing`. 1 = Enabled, 0 = Disabled. <br> (Default: `1`) |
| `GRT_MAX_DIODE_INS_ITERS` | Controls the maximum number of iterations at which re-running Fastroute for diode insertion stops. Each iteration ARC detects the violations and FastRoute fixes them by inserting diodes, then producing the new DEF. The number of antenna violations is compared with the previous iteration and if they are equal or the number is greater the iterations stop and the DEF from the previous iteration is used in the rest of the flow. If the current antenna violations reach zero, the current def will be used and the iterations will not continue. This option is only available in when `GRT_REPAIR_ANETNNAS` is enabled. <br> (Default: `1`) |
| `GRT_MAX_DIODE_INS_ITERS` | Controls the maximum number of iterations at which re-running Fastroute for diode insertion stops. Each iteration ARC detects the violations and FastRoute fixes them by inserting diodes, then producing the new DEF. The number of antenna violations is compared with the previous iteration and if they are equal or the number is greater the iterations stop and the DEF from the previous iteration is used in the rest of the flow. If the current antenna violations reach zero, the current def will be used and the iterations will not continue. This option is only available in when `GRT_REPAIR_ANTENNAS` is enabled. <br> (Default: `1`) |
| `GRT_REPAIR_ANTENNAS` | Enables OpenROAD's antenna avoidance flow. <br> (Default: `1`) |
| `GRT_OBS` | Specifies custom obstruction to be added prior to global routing. Comma-delimited ([warning](#on-comma-delimited-variables)) list of layer and coordinates: `layer llx lly urx ury`, where `ll` and `ur` stand for "lower left" and "upper right" respectively.<br> (Example: `li1 0 100 1000 300, met5 0 0 1000 500`) <br> (Default: unset) |
| `GRT_ADJUSTMENT` | Reduction in the routing capacity of the edges between the cells in the global routing graph. Values range from 0 to 1. <br> 1 = most reduction, 0 = least reduction <br> (Default: `0.3`)|
| `GRT_MACRO_EXTENSION` | Sets the number of GCells added to the blockages boundaries from macros. A GCell is typically defined in terms of Mx routing tracks. The default GCell size is 15 M3 pitches. <br> (Default: `0`) |