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Replaced separate PageTypeF and PageTypeM with common PageType

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This commit is contained in:
David Harris 2021-07-17 02:31:23 -04:00
parent dac22d5016
commit b65788d165
4 changed files with 8 additions and 18 deletions
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4
wally-pipelined/src/ifu/ifu.sv
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@ -68,7 +68,7 @@ module ifu (
// mmu management
input logic [1:0] PrivilegeModeW,
input logic [`XLEN-1:0] PageTableEntryF,
input logic [1:0] PageTypeF,
input logic [1:0] PageType,
input logic [`XLEN-1:0] SATP_REGW,
input logic STATUS_MXR, STATUS_SUM, STATUS_MPRV,
input logic [1:0] STATUS_MPP,
@ -117,7 +117,7 @@ module ifu (
immu(.Address(PCF),
.Size(2'b10),
.PTE(PageTableEntryF),
.PageTypeWriteVal(PageTypeF),
.PageTypeWriteVal(PageType),
.TLBWrite(ITLBWriteF),
.TLBFlush(ITLBFlushF),
.PhysicalAddress(PCPFmmu),

8
wally-pipelined/src/lsu/lsu.sv
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@ -82,7 +82,7 @@ module lsu
input logic [`XLEN-1:0] PCF,
input logic ITLBMissF,
output logic [`XLEN-1:0] PageTableEntryF,
output logic [1:0] PageTypeF,
output logic [1:0] PageType,
output logic ITLBWriteF,
output logic WalkerInstrPageFaultF,
output logic WalkerLoadPageFaultM,
@ -119,7 +119,6 @@ module lsu
logic DTLBMissM;
logic [`XLEN-1:0] PageTableEntryM;
logic [1:0] PageTypeM;
logic DTLBWriteM;
logic [`XLEN-1:0] HPTWReadPTE;
logic MMUReady;
@ -161,8 +160,7 @@ module lsu
.MemRWM(MemRWM),
.PageTableEntryF(PageTableEntryF),
.PageTableEntryM(PageTableEntryM),
.PageTypeF(PageTypeF),
.PageTypeM(PageTypeM),
.PageType,
.ITLBWriteF(ITLBWriteF),
.DTLBWriteM(DTLBWriteM),
.HPTWReadPTE(HPTWReadPTE),
@ -223,7 +221,7 @@ module lsu
dmmu(.Address(MemAdrMtoDCache),
.Size(Funct3MtoDCache[1:0]),
.PTE(PageTableEntryM),
.PageTypeWriteVal(PageTypeM),
.PageTypeWriteVal(PageType),
.TLBWrite(DTLBWriteM),
.TLBFlush(DTLBFlushM),
.PhysicalAddress(MemPAdrM),

10
wally-pipelined/src/mmu/pagetablewalker.sv
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@ -47,7 +47,7 @@ module pagetablewalker
// Outputs to the TLBs (PTEs to write)
output logic [`XLEN-1:0] PageTableEntryF, PageTableEntryM,
output logic [1:0] PageTypeF, PageTypeM,
output logic [1:0] PageType,
output logic ITLBWriteF, DTLBWriteM,
output logic SelPTW,
@ -92,7 +92,6 @@ module pagetablewalker
// Outputs of walker
logic [`XLEN-1:0] PageTableEntry;
logic [1:0] PageType;
logic StartWalk;
logic EndWalk;
@ -170,9 +169,6 @@ module pagetablewalker
// Assign specific outputs to general outputs
assign PageTableEntryF = PageTableEntry;
assign PageTableEntryM = PageTableEntry;
assign PageTypeF = PageType;
assign PageTypeM = PageType;
// generate
if (`XLEN == 32) begin
@ -182,10 +178,6 @@ module pagetablewalker
flopenl #(.TYPE(statetype)) PreviousWalkerStateReg(clk, reset, 1'b1, WalkerState, IDLE, PreviousWalkerState);
/* -----\/----- EXCLUDED -----\/-----
assign PRegEn = (WalkerState == LEVEL1_WDV || WalkerState == LEVEL0_WDV) && ~HPTWStall;
-----/\----- EXCLUDED -----/\----- */
// State transition logic
always_comb begin
PRegEn = 1'b0;

4
wally-pipelined/src/wally/wallypipelinedhart.sv
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@ -118,7 +118,7 @@ module wallypipelinedhart
logic [1:0] STATUS_MPP;
logic [1:0] PrivilegeModeW;
logic [`XLEN-1:0] PageTableEntryF, PageTableEntryM;
logic [1:0] PageTypeF, PageTypeM;
logic [1:0] PageType;
// PMA checker signals
logic DSquashBusAccessM, ISquashBusAccessF;
@ -226,7 +226,7 @@ module wallypipelinedhart
.PCF(PCF),
.ITLBMissF(ITLBMissF),
.PageTableEntryF(PageTableEntryF),
.PageTypeF(PageTypeF),
.PageType,
.ITLBWriteF(ITLBWriteF),
.WalkerInstrPageFaultF(WalkerInstrPageFaultF),
.WalkerLoadPageFaultM(WalkerLoadPageFaultM),