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regression working partially done page mask

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Kip Macsai-Goren 2021-06-07 17:02:31 -04:00
parent 9efbffdee5
commit 6a63ad04d2
1 changed files with 5 additions and 4 deletions
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9
wally-pipelined/src/mmu/physicalpagemask.sv
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@ -32,15 +32,15 @@
module physicalpagemask #(parameter BITS = 20, module physicalpagemask #(parameter BITS = 20,
parameter HIGH_SEGMENT_BITS = 10) ( parameter HIGH_SEGMENT_BITS = 10) (
input [BITS-1:0] **** VirtualAddress, input [BITS-1:0] VirtualAddress, //***
input [BITS-1:0] *** PPN, input [BITS-1:0] PPN, //***
input [1:0] PageType, input [1:0] PageType,
input [`SVMODE_BITS-1:0] SvMode, input [`SVMODE_BITS-1:0] SvMode,
output [BITS-1:0]*** PhysicalAddress output [BITS-1:0] PhysicalAddress //***
); );
logic [***] OffsetMask; logic [34:0] OffsetMask;
generate generate
if (`XLEN == 32) begin if (`XLEN == 32) begin
@ -57,6 +57,7 @@ module physicalpagemask #(parameter BITS = 20,
2: OffsetMask = 56'hFFFFFFC0000000; // gigapage: 26 bits of PPN, 30 bits of offset 2: OffsetMask = 56'hFFFFFFC0000000; // gigapage: 26 bits of PPN, 30 bits of offset
3: OffsetMask = 56'hFFFF8000000000; // terapage: 17 bits of PPN, 39 bits of offset 3: OffsetMask = 56'hFFFF8000000000; // terapage: 17 bits of PPN, 39 bits of offset
endcase endcase
end
endgenerate endgenerate
// merge low bits of the virtual address containing the offset with high bits of the PPN // merge low bits of the virtual address containing the offset with high bits of the PPN