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interchange: Add macro param map rules to chipdb

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Signed-off-by: gatecat <gatecat@ds0.me>
This commit is contained in:
gatecat 2021-04-23 11:50:26 +01:00
parent 012b60c9ca
commit 237b27e50b
1 changed files with 24 additions and 0 deletions
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24
fpga_interchange/chipdb.h
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@ -337,6 +337,28 @@ NPNR_PACKED_STRUCT(struct MacroParameterPOD {
int32_t value; // constid int32_t value; // constid
}); });
enum MacroParamRuleType
{
PARAM_MAP_COPY = 0, // copy parameter value
PARAM_MAP_SLICE = 1, // take a slice of bits
PARAM_MAP_TABLE = 2, // lookup strings in table
};
NPNR_PACKED_STRUCT(struct MacroParamMapRulePOD {
// name of parameter on parent primitive
int32_t prim_param; // constid
// name of instance to set parameter on
int32_t inst_name; // constid
// name of parameter on macro expansion instance
int32_t inst_param; // constid
// type of mapping to use to derive new value
int32_t rule_type; // MacroParamRuleType
// for slice mappings, the bits to collect
RelSlice<uint32_t> slice_bits;
// for table mappings, the lookup table to use
RelSlice<MacroParameterPOD> map_table;
});
NPNR_PACKED_STRUCT(struct MacroCellInstPOD { NPNR_PACKED_STRUCT(struct MacroCellInstPOD {
int32_t name; // instance name constid int32_t name; // instance name constid
int32_t type; // instance type constid int32_t type; // instance type constid
@ -376,6 +398,8 @@ NPNR_PACKED_STRUCT(struct MacroExpansionPOD {
int32_t macro_name; int32_t macro_name;
// list of parameters to (optionally) match // list of parameters to (optionally) match
RelSlice<MacroParameterPOD> param_matches; RelSlice<MacroParameterPOD> param_matches;
// how to derive parameters for expansion instances
RelSlice<MacroParamMapRulePOD> param_rules;
}); });
NPNR_PACKED_STRUCT(struct ChipInfoPOD { NPNR_PACKED_STRUCT(struct ChipInfoPOD {