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Fixed bug in uncore updates which broke SDC.

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This commit is contained in:
Rose Thompson 2023-11-13 16:15:23 -06:00
parent 707b0c557c
commit a6995af91c
2 changed files with 7 additions and 10 deletions
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13
src/lsu/align.sv
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@ -175,18 +175,15 @@ module align import cvw::*; #(parameter cvw_t P) (
// write path. Also has the 8:1 shifter muxing for the byteoffset
// then it also has the mux to select when a spill occurs
logic [P.LLEN*2-1:0] LSUWriteDataShiftedM;
logic [P.LLEN*3-1:0] LSUWriteDataShiftedExtM; // *** RT: Find a better way. I've extending in both directions so we don't shift in zeros. The cache expects the writedata to not have any zero data, but instead replicated data.
assign LSUWriteDataShiftedExtM = {LSUWriteDataM, LSUWriteDataM, LSUWriteDataM} << (MisalignedM ? 8 * AccessByteOffsetM : '0);
assign LSUWriteDataShiftedM = LSUWriteDataShiftedExtM[P.LLEN*3-1:P.LLEN];
assign LSUWriteDataSpillM = LSUWriteDataShiftedM;
//mux2 #(2*P.LLEN) writedataspillmux(LSUWriteDataShiftedM, {LSUWriteDataShiftedM[P.LLEN*2-1:P.LLEN], LSUWriteDataShiftedM[P.LLEN*2-1:P.LLEN]}, SelSpillM, LSUWriteDataSpillM);
assign LSUWriteDataSpillM = LSUWriteDataShiftedExtM[P.LLEN*3-1:P.LLEN];
logic [P.LLEN*2/8-1:0] ByteMaskShiftedM;
assign ByteMaskShiftedM = ByteMaskMuxM;
mux3 #(2*P.LLEN/8) bytemaskspillmux(ByteMaskShiftedM, {{{P.LLEN/8}{1'b0}}, ByteMaskM},
{{{P.LLEN/8}{1'b0}}, ByteMaskMuxM[P.LLEN*2/8-1:P.LLEN/8]}, {SelSpillM, SelSpillE}, ByteMaskSpillM);
mux3 #(2*P.LLEN/8) bytemaskspillmux(ByteMaskMuxM, // no spill
{{{P.LLEN/8}{1'b0}}, ByteMaskM}, // spill, first half
{{{P.LLEN/8}{1'b0}}, ByteMaskMuxM[P.LLEN*2/8-1:P.LLEN/8]}, // spill, second half
{SelSpillM, SelSpillE}, ByteMaskSpillM);
flopenr #(P.LLEN*2/8) bytemaskreg(clk, reset, SaveByteMask, {ByteMaskExtendedM, ByteMaskM}, ByteMaskSaveM);
mux2 #(P.LLEN*2/8) bytemasksavemux({ByteMaskExtendedM, ByteMaskM}, ByteMaskSaveM, SelSpillM, ByteMaskMuxM);

4
src/uncore/uncore.sv
View file

@ -63,7 +63,7 @@ module uncore import cvw::*; #(parameter cvw_t P)(
logic [P.XLEN-1:0] HREADRam, HREADSDC;
logic [11:0] HSELRegions;
logic HSELDTIM, HSELIROM, HSELRam, HSELCLINT, HSELPLIC, HSELGPIO, HSELUART, HSELSDC, HSELSPI;
logic HSELDTIM, HSELIROM, HSELRam, HSELCLINT, HSELPLIC, HSELGPIO, HSELUART, HSELSPI;
logic HSELDTIMD, HSELIROMD, HSELEXTD, HSELRamD, HSELCLINTD, HSELPLICD, HSELGPIOD, HSELUARTD, HSELSDCD, HSELSPID;
logic HRESPRam, HRESPSDC;
logic HREADYRam, HRESPSDCD;
@ -91,7 +91,7 @@ module uncore import cvw::*; #(parameter cvw_t P)(
adrdecs #(P) adrdecs(HADDR, 1'b1, 1'b1, 1'b1, HSIZE[1:0], HSELRegions);
// unswizzle HSEL signals
assign {HSELDTIM, HSELIROM, HSELEXT, HSELBootRom, HSELRam, HSELCLINT, HSELGPIO, HSELUART, HSELPLIC, HSELSDC, HSELSPI} = HSELRegions[11:1];
assign {HSELDTIM, HSELIROM, HSELEXT, HSELBootRom, HSELRam, HSELCLINT, HSELGPIO, HSELUART, HSELPLIC, HSELEXTSDC, HSELSPI} = HSELRegions[11:1];
// AHB -> APB bridge
ahbapbbridge #(P, 5) ahbapbbridge (