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071-ppips: In Kintex7, two wires are permanently connected to RIOI_O[01] 

Signed-off-by: Hans Baier <hansfbaier@gmail.com>
This commit is contained in:
Hans Baier 2022-12-02 09:18:50 +07:00 committed by Hans Baier
parent ae0780b1e9
commit 7ceb33337d
1 changed files with 23 additions and 1 deletions
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24
fuzzers/071-ppips/generate.tcl
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@ -148,11 +148,33 @@ proc write_ioi_ppips_db {filename tile} {
foreach pip [get_pips -of_objects $tile] { foreach pip [get_pips -of_objects $tile] {
set dst_wire [get_wires -downhill -of_objects $pip] set dst_wire [get_wires -downhill -of_objects $pip]
set nodes [get_nodes -of_objects $dst_wire]
set uphill_pips [get_pips -uphill -of_objects $nodes]
if [string match "*DATAOUT*" $dst_wire] { if [string match "*DATAOUT*" $dst_wire] {
continue continue
} elseif {[get_pips -uphill -of_objects [get_nodes -of_objects $dst_wire]] == $pip} { } elseif {$uphill_pips == $pip} {
# if there is only one uphill pip, then output always
# TODO: This really does not get us the ppips,
# but those pips which only have a single uphill pip.
# There are both false positives and false negatives
# with this approach: This also captures switchbox pips which
# only have one uphill pip but still can be turned on or off.
# example: LIOI3.IOI_ILOGIC0_CE1.IOI_IMUX5_1
# It also does not capture ppips with two uphill pips,
# like RIOI.RIOI_OLOGIC0_OQ and RIOI.ODELAY0_DATAOUT in Kintex7,
# which both are connected to RIOIO_O0. In Artix7 this one
# is only connected to _OQ.
set src_wire [get_wires -uphill -of_objects $pip] set src_wire [get_wires -uphill -of_objects $pip]
puts $fp "${tile_type}.[regsub {.*/} $dst_wire ""].[regsub {.*/} $src_wire ""] always" puts $fp "${tile_type}.[regsub {.*/} $dst_wire ""].[regsub {.*/} $src_wire ""] always"
} elseif {[lsearch -exact $uphill_pips $pip]} {
# In Kintex7, two wires are permanently connected to RIOI_O[01]
if {[string match "*RIOI_O[01]" $dst_wire] && [llength $uphill_pips] == 2} {
foreach uphill_pip $uphill_pips {
set src_wire [get_wires -uphill -of_objects $uphill_pip]
puts $fp "${tile_type}.[regsub {.*/} $dst_wire ""].[regsub {.*/} $src_wire ""] always"
}
}
} }
} }