5 Commits

Author SHA1 Message Date
9f7aa79b99 saving current changes 2026-01-25 14:24:20 +00:00
f2cc45d169 other changes 2026-01-20 18:05:54 +00:00
b9b318b4f5 added compilable TLB bypass need to fix assert
run time error
2026-01-20 18:04:13 +00:00
bf7bd16c53 adding current changes 2026-01-14 15:29:03 +00:00
c1cf362c70 changes 2026-01-10 16:14:01 +00:00
9 changed files with 2488 additions and 134 deletions

BIN
Tests/isa/CheriPage Executable file

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129
Tests/isa/CheriPage.S Normal file
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@@ -0,0 +1,129 @@
.option norvc
.option norelax
# ==================================================
# Text section
# ==================================================
.section .text
.globl _start
_start:
vm_boot:
# Only hart 0 runs
csrr a0, mhartid
bnez a0, hang
# --------------------------------------------------
# root_pt[0] -> l1_pt
# --------------------------------------------------
cllc c0, l1_pt
li t2, 4096
csetbounds c0, c0, t2
cgetaddr t0, c0
srli t0, t0, 12
slli t0, t0, 10
ori t0, t0, 0x1 # V bit
cllc c1, root_pt
li t2, 4096
csetbounds c1, c1, t2
sd t0, 0(c1)
# --------------------------------------------------
# l1_pt[0] -> l0_pt
# --------------------------------------------------
cllc c0, l0_pt
li t2, 4096
csetbounds c0, c0, t2
cgetaddr t0, c0
srli t0, t0, 12
slli t0, t0, 10
ori t0, t0, 0x1 # V bit
cllc c1, l1_pt
li t2, 4096
csetbounds c1, c1, t2
sd t0, 0(c1)
# --------------------------------------------------
# l0_pt[0] -> leaf (RWX)
# --------------------------------------------------
li t0, (1<<0)|(1<<1)|(1<<2)|(1<<3)|(1<<6) # V R W X A
cllc c1, l0_pt
li t2, 4096
csetbounds c1, c1, t2
sd t0, 0(c1)
# --------------------------------------------------
# Enable Sv39 paging
# --------------------------------------------------
cllc c0, root_pt
li t2, 4096
csetbounds c0, c0, t2
cgetaddr t0, c0
srli t0, t0, 12
li t1, (8 << 60) # MODE = Sv39
or t0, t0, t1
csrw satp, t0
sfence.vma zero, zero
# --------------------------------------------------
# Safe data access
# --------------------------------------------------
cllc c2, test_buf
li t2, 16
csetbounds c2, c2, t2
li t3, 0x1122334455667788
sd t3, 0(c2)
ld t4, 0(c2)
bne t3, t4, hang
# --------------------------------------------------
# Signal success
# --------------------------------------------------
cllc c0, tohost
li t2, 8
csetbounds c0, c0, t2
li t1, 1
sd t1, 0(c0)
hang:
wfi
j hang
# ==================================================
# Data section (aligned, contiguous, no .org)
# ==================================================
.section .data
.align 12
.globl root_pt
root_pt:
.zero 4096 # Root page table
.align 12
.globl l1_pt
l1_pt:
.zero 4096 # Level 1 page table
.align 12
.globl l0_pt
l0_pt:
.zero 4096 # Level 0 page table
.align 3
.globl test_buf
test_buf:
.zero 16 # Test buffer
.globl tohost
tohost:
.dword 0
.globl fromhost
fromhost:
.dword 0

230
Tests/isa/PageRead.S Normal file
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@@ -0,0 +1,230 @@
.option norvc
.option norelax
# ==================================================
# Text section
# ==================================================
.section .text
.globl _start
.globl vm_boot
_start:
vm_boot:
# --------------------------------------------------
# Only hart 0 runs
# --------------------------------------------------
csrr a0, mhartid
bnez a0, hang
# --------------------------------------------------
# Build page tables
# --------------------------------------------------
#
# Page table setup (Sv39) binary + hex example
#
# Purpose:
# Build a VALID page table entry (PTE) in the root page table
# that points to the next-level page table (l1_pt).
#
# Assume:
# l1_pt physical address =
# binary: 00000000 10000000 01000000 00110000 00000000
# hex: 0x0000000080403000
# (page aligned, lower 12 bits = 0)
#
# Step-by-step instruction meaning:
#
# la t0, l1_pt
# Load physical address of l1_pt.
#
# t0 =
# binary: 00000000 10000000 01000000 00110000 00000000
# hex: 0x0000000080403000
#
# srli t0, t0, 12
# Drop 12-bit page offset extract Physical Page Number (PPN).
#
# t0 (PPN) =
# binary: 00000000 00000000 10000000 01000000 0011
# hex: 0x0000000000080403
#
# slli t0, t0, 10
# Shift PPN into PTE bit positions [63:10].
# Bits [9:0] are flags.
#
# t0 =
# binary: 00000000 00000000 10000000 01000000 0011 0000000000
# hex: 0x0000000020100C00
#
# ori t0, t0, 1
# Set bit 0 (V = Valid).
#
# t0 (final PTE) =
# binary: 00000000 00000000 10000000 01000000 0011 0000000001
# hex: 0x0000000020100C01
#
# Memory effect:
#
# root_pt[0] =
# bit index:
# 63 10 9 0
# +----------------------------------+----------+
# | PPN = 0x0000000000080403 | V = 1 |
# +----------------------------------+----------+
#
# binary: 00000000 00000000 10000000 01000000 0011 0000000001
# hex: 0x0000000020100C01
#
# Result:
# Root page table entry 0 is VALID and points to l1_pt.
# The MMU uses this entry to continue the Sv39 page-table walk.
#
# root_pt[0] -> l1_pt
la t0, l1_pt
srli t0, t0, 12 # PPN
slli t0, t0, 10 # PTE format
ori t0, t0, 0x1 # V
la t1, root_pt
sd t0, 0(t1)
# l1_pt[0] -> l0_pt
la t0, l0_pt
srli t0, t0, 12
slli t0, t0, 10
ori t0, t0, 0x1 # V
la t1, l1_pt
sd t0, 0(t1)
# l0_pt[0] -> identity mapping (RWX)
li t0, (1<<0)|(1<<1)|(1<<2)|(1<<3)|(1<<6) # V R W X A
la t1, l0_pt
sd t0, 0(t1)
# --------------------------------------------------
# Enable Sv39 paging
# --------------------------------------------------
# Enable virtual memory (Sv39) SATP setup diagram (binary)
#
# Assume:
# root_pt physical address =
# 00000000 10000000 01000000 00010000 00000000
# (4 KB aligned, lower 12 bits = 0)
#
# Instruction flow:
#
# la t0, root_pt
# t0 =
# 00000000 10000000 01000000 00010000 00000000
#
# srli t0, t0, 12 ; extract PPN
# t0 (PPN) =
# 00000000 00000000 10000000 01000000 0001
#
# li t1, (8 << 60) ; MODE = Sv39
# t1 =
# 1000 0000000000000000000000000000000000000000000000000000
# ^^^^
# MODE[63:60] = 1000 (Sv39)
#
# or t0, t0, t1
# satp value =
# 1000 0000000000000000000000000000000010000000010000000001
# |<-- MODE -->|<----------- ASID ---------->|<---- PPN ---->|
#
# csrw satp, t0
# satp register loaded:
#
# 63 60 59 44 43 0
# +------+----------------------------------+----------------+
# |1000 |0000000000000000 |0000000010000000010000000001|
# +------+----------------------------------+----------------+
# MODE=Sv39 ASID=0 root_pt PPN
#
# sfence.vma zero, zero
# Flush all TLB entries so new page tables are used
#
# Meaning:
# - Virtual memory enabled in Sv39 mode
# - Root page table base = root_pt
# - ASID = 0
# - MMU now performs 3-level page table walks
#
la t0, root_pt
srli t0, t0, 12
li t1, (8 << 60) # MODE=Sv39
or t0, t0, t1
csrw satp, t0
sfence.vma zero, zero
# --------------------------------------------------
# Write data to memory (safe area)
# --------------------------------------------------
la t2, test_buf
li t3, 0x1122334455667788
sd t3, 0(t2)
# --------------------------------------------------
# Read data back
# --------------------------------------------------
ld t4, 0(t2)
# Optional check (simple)
bne t3, t4, hang
# --------------------------------------------------
# Signal success
# --------------------------------------------------
la t0, tohost
li t1, 1
sd t1, 0(t0)
hang:
wfi
j hang
# ==================================================
# Required test symbol
# ==================================================
.globl exit
exit:
j exit
# ==================================================
# Data section
# ==================================================
.section .data
.align 3
.globl tohost
.globl fromhost
tohost:
.dword 0
fromhost:
.dword 0
# --------------------------------------------------
# Test buffer (safe data memory)
# --------------------------------------------------
.align 3
test_buf:
.zero 16
# --------------------------------------------------
# Page tables (must be 4 KiB each)
# --------------------------------------------------
.align 12
root_pt:
.zero 4096
.align 12
l1_pt:
.zero 4096
.align 12
l0_pt:
.zero 4096

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Tests/isa/PageReadWrite Executable file

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@@ -12,7 +12,7 @@ _start:
vm_boot:
# Only hart 0
csrr a0, mhartid
bnez a0, hang
bnez a0, hang.
# --------------------------------------------------
# Build page table entries

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@@ -8,9 +8,11 @@ ARCH ?= RV64ACDFIMSUxCHERI
BSC_COMPILATION_FLAGS += -verbose
# Default ISA test
# TEST ?= rv64ui-p-add
TEST ?= rv64ui-p-add
# TEST ?= rv64um-v-mulw
TEST ?= Page
# TEST ?= Page
# TEST ?= PageReadWrite
# TEST ?= CheriPage
#================================================================
# Parameter settings for MIT RISCY, setup paths etc. for Include_Common

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@@ -320,6 +320,7 @@ module mkMemExePipeline#(MemExeInput inIfc)(MemExePipeline);
// pipeline fifos
let dispToRegQ <- mkMemDispToRegFifo;
let regToExeQ <- mkMemRegToExeFifo;
let trollToExeQ <- mkMemRegToExeFifo;
// wire to recv bypass
Vector#(TMul#(2, AluExeNum), RWire#(Tuple2#(PhyRIndx, CapPipe))) bypassWire <- replicateM(mkRWire);
@@ -600,73 +601,156 @@ module mkMemExePipeline#(MemExeInput inIfc)(MemExePipeline);
regToExeQ.deq;
let regToExe = regToExeQ.first;
let x = regToExe.data;
if(verbose) $display("%t : [doExeMem] ", $time, fshow(regToExe));
// trollToExeQ.enq(regToExe);
// ==============================
// if(verbose) $display("%t : [doExeMem] ", $time, fshow(regToExe));
let shiftBE = DataMemAccess(x.shiftBEData);
if (x.origBE == TagMemAccess) begin
// // Moved to the next stage
// // let shiftBE = DataMemAccess(x.shiftBEData);
// // if (x.origBE == TagMemAccess) begin
// // shiftBE = TagMemAccess;
// // end
// CapPipe ddc = cast(inIfc.scaprf_rd(scrAddrDDC));
// // get size of the access
// Bit#(TAdd#(CacheUtils::LogCLineNumMemDataBytes,1)) accessByteCount = zeroExtend(pack(countOnes(pack(x.origBE.DataMemAccess))));
// if (x.origBE == TagMemAccess) begin
// accessByteCount = fromInteger(valueOf(CacheUtils::CLineNumMemDataBytes));
// end
// `ifdef KONATA
// $display("KONATAE\t%0d\t%0d\t0\tMem2", cur_cycle, x.u_id);
// $display("KONATAS\t%0d\t%0d\t0\tMem3", cur_cycle, x.u_id);
// $fflush;
// `endif
// Make our own versions where this is passed as a queue to
// the next stage and processed there:
// We only need
// - x.mem_func(Maybe to see if it's a load ?)
// - x (We can get the hardware permissions, cap_mem permission, prepareBoundsCheck)
// - We will assume a one on one mapping with offset with a delta value of 1 (Hardcoded
// for just testing)
trollToExeQ.enq(regToExe);
// go to next stage by sending to TLB
// dTlb.procReq(DTlbReq {
// inst: MemExeToFinish {
// mem_func: x.mem_func,
// tag: x.tag,
// ldstq_tag: x.ldstq_tag,
// shiftedBE: shiftBE,
// vaddr: x.vaddr,
// `ifdef INCLUDE_TANDEM_VERIF
// store_data: x.rVal2,
// store_data_BE: origBE,
// `endif
// misaligned: memAddrMisaligned(getAddr(x.vaddr), x.origBE),
// capStore: isValidCap(x.rVal2) && x.origBE == DataMemAccess(unpack(~0)),
// allowCapLoad: getHardPerms(x.rVal1).permitLoadCap && x.origBE == DataMemAccess(unpack(~0)),
// capException: capChecksMem(x.rVal1, x.rVal2, x.cap_checks, x.mem_func, x.origBE),
// check: prepareBoundsCheck(x.rVal1, x.rVal2, almightyCap/*ToDo: pcc*/,
// ddc, getAddr(x.vaddr), accessByteCount, x.cap_checks)
// `ifdef KONATA
// , u_id: x.u_id
// `endif
// },
// specBits: regToExe.spec_bits
// });
// When the DTLB proq request is called
// Could be only 1 at a time but let's assume there are plenty
// We assume there is queue of requests (|,|,|,|), We assume these run while other instructions
// are getting executed (When Proq response is called one by one from the queue responses with
// physical addresses are being executed to be stored or read from memory).
endrule
rule doFinishMem;
// Over here we are reducing the tracing surface area to ensure
// It's easier to write a TLB bypasser.
let regToExe = trollToExeQ.first;
// Let's check if lol access data can be found in the
// the previous stage.
let lol = regToExe.data;
// =============================
// dTlb.deqProcResp;
// let dTlbResp = dTlb.procResp;
// Assumtion instruction related can be passed on
// from the previous stage.
// let tlbresp = dTlbResp.inst;
// let {paddr, expCause, allowCapPTE} = dTlbResp.resp;
// Assuming physcial address is virtual address just for testing
let paddr = getAddr(lol.vaddr);
// These are just assumtions for testing
// let expCause = dTlb.Invalid;
let allowCapPTE = True;
if(verbose) $display("%t : [doFinishMem] ", $time, fshow(regToExe));
// Moved to the next stage
let shiftBE = DataMemAccess(lol.shiftBEData);
if (lol.origBE == TagMemAccess) begin
shiftBE = TagMemAccess;
end
CapPipe ddc = cast(inIfc.scaprf_rd(scrAddrDDC));
// get size of the access
Bit#(TAdd#(CacheUtils::LogCLineNumMemDataBytes,1)) accessByteCount = zeroExtend(pack(countOnes(pack(x.origBE.DataMemAccess))));
if (x.origBE == TagMemAccess) begin
accessByteCount = fromInteger(valueOf(CacheUtils::CLineNumMemDataBytes));
end
// Bit#(TAdd#(CacheUtils::LogCLineNumMemDataBytes,1)) accessByteCount = zeroExtend(pack(countOnes(pack(x.origBE.DataMemAccess))));
// if (x.origBE == TagMemAccess) begin
// accessByteCount = fromInteger(valueOf(CacheUtils::CLineNumMemDataBytes));
// end
`ifdef KONATA
$display("KONATAE\t%0d\t%0d\t0\tMem2", cur_cycle, x.u_id);
$display("KONATAS\t%0d\t%0d\t0\tMem3", cur_cycle, x.u_id);
$fflush;
`endif
// go to next stage by sending to TLB
dTlb.procReq(DTlbReq {
inst: MemExeToFinish {
mem_func: x.mem_func,
tag: x.tag,
ldstq_tag: x.ldstq_tag,
shiftedBE: shiftBE,
vaddr: x.vaddr,
`ifdef INCLUDE_TANDEM_VERIF
store_data: x.rVal2,
store_data_BE: origBE,
`endif
misaligned: memAddrMisaligned(getAddr(x.vaddr), x.origBE),
capStore: isValidCap(x.rVal2) && x.origBE == DataMemAccess(unpack(~0)),
allowCapLoad: getHardPerms(x.rVal1).permitLoadCap && x.origBE == DataMemAccess(unpack(~0)),
capException: capChecksMem(x.rVal1, x.rVal2, x.cap_checks, x.mem_func, x.origBE),
check: prepareBoundsCheck(x.rVal1, x.rVal2, almightyCap/*ToDo: pcc*/,
ddc, getAddr(x.vaddr), accessByteCount, x.cap_checks)
`ifdef KONATA
, u_id: x.u_id
`endif
},
specBits: regToExe.spec_bits
});
endrule
rule doFinishMem;
dTlb.deqProcResp;
let dTlbResp = dTlb.procResp;
let x = dTlbResp.inst;
let {paddr, expCause, allowCapPTE} = dTlbResp.resp;
// Capability checks computed early over instead of the previous stage
// This will resolve:
// - .check
// - .capException
// - .allowCapLoad
// - .capStore
// get access byte count
// get size of the access
Bit#(TAdd#(CacheUtils::LogCLineNumMemDataBytes,1)) accessByteCount = zeroExtend(pack(countOnes(pack(lol.origBE.DataMemAccess))));
if (lol.origBE == TagMemAccess) begin
accessByteCount = fromInteger(valueOf(CacheUtils::CLineNumMemDataBytes));
end
let check = prepareBoundsCheck(lol.rVal1, lol.rVal2, almightyCap/*ToDo: pcc*/,ddc, getAddr(lol.vaddr), accessByteCount, lol.cap_checks);
let capException = capChecksMem(lol.rVal1, lol.rVal2, lol.cap_checks, lol.mem_func, lol.origBE);
let allowCapLoad = getHardPerms(lol.rVal1).permitLoadCap && lol.origBE == DataMemAccess(unpack(~0));
// (TODO) Still need to pass the:
// (done) tag
// (done) ldstq_tag
// (done) shiftedBE
Maybe#(Trap) cause = Invalid;
if (expCause matches tagged Valid .c) cause = Valid(Exception(c));
// if (expCause matches tagged Valid .c) cause = Valid(Exception(c));
if(verbose) $display("%t : [doFinishMem] ", $time, fshow(dTlbResp));
if(isValid(cause) && verbose) $display(" [doFinishMem - dTlb response] PAGEFAULT!");
// if(verbose) $display("%t : [doFinishMem] ", $time, fshow(dTlbResp));
$display("Bypassing TLB");
// if(isValid(cause) && verbose) $display(" [doFinishMem - dTlb response] PAGEFAULT!");
Data store_data = ?;
ByteEn store_data_BE = ?;
`ifdef INCLUDE_TANDEM_VERIF
store_data = x.store_data;
store_data_BE = x.store_data_BE;
`endif
// `ifdef INCLUDE_TANDEM_VERIF
// store_data = tlbresp.store_data;
// store_data_BE = tlbresp.store_data_BE;
// `endif
let misaligned = memAddrMisaligned(getAddr(lol.vaddr), lol.origBE);
// check misalignment
if(!isValid(cause) && x.misaligned) begin
case(x.mem_func)
if(!isValid(cause) && misaligned) begin
case(lol.mem_func)
Ld, Lr: begin
cause = Valid(Exception(excLoadAddrMisaligned));
end
@@ -676,25 +760,25 @@ module mkMemExePipeline#(MemExeInput inIfc)(MemExePipeline);
endcase
end
`ifdef RVFI_DII
// TestRIG expects us throw an access fault for any memory access outside of a 8 MiB memory at 0x8000000.
if (!isValid(cause) && (paddr < 'h80000000 || paddr >= 'h80800000)) begin
case(x.mem_func)
Ld, Lr: begin
cause = Valid(Exception(excLoadAccessFault));
end
default: begin
cause = Valid(Exception(excStoreAccessFault));
end
endcase
end
`endif
// `ifdef RVFI_DII
// // TestRIG expects us throw an access fault for any memory access outside of a 8 MiB memory at 0x8000000.
// if (!isValid(cause) && (paddr < 'h80000000 || paddr >= 'h80800000)) begin
// case(tlbresp.mem_func)
// Ld, Lr: begin
// cause = Valid(Exception(excLoadAccessFault));
// end
// default: begin
// cause = Valid(Exception(excStoreAccessFault));
// end
// endcase
// end
// `endif
// check if addr is MMIO (only valid in case of no page fault)
Bool isMMIO = inIfc.isMMIOAddr(paddr);
// raise access fault in case of MMIO Lr/Sc
if(!isValid(cause) && isMMIO) begin
case(x.mem_func)
case(lol.mem_func)
Lr: begin
cause = Valid(Exception(excLoadAccessFault));
end
@@ -706,40 +790,42 @@ module mkMemExePipeline#(MemExeInput inIfc)(MemExePipeline);
// update ROB (access at commit and non-mmio st done can only be true
// when there is no exceptio)
Bool isLrScAmo = (case(x.mem_func)
Bool isLrScAmo = (case(lol.mem_func)
Lr, Sc, Amo: True;
default: False;
endcase);
if (x.check matches tagged Valid .check &&& x.capException matches tagged Invalid) begin
if (check matches tagged Valid .check &&& capException matches tagged Invalid) begin
if (!( (check.check_low >= check.authority_base) &&
(check.check_inclusive ? (check.check_high <= check.authority_top )
: (check.check_high < check.authority_top ))))
x.capException = Valid(CSR_XCapCause{cheri_exc_reg: check.authority_idx, cheri_exc_code: cheriExcLengthViolation});
capException = Valid(CSR_XCapCause{cheri_exc_reg: check.authority_idx, cheri_exc_code: cheriExcLengthViolation});
end
if (x.capException matches tagged Valid .c) cause = Valid(CapException(c));
if (capException matches tagged Valid .c) cause = Valid(CapException(c));
Bool access_at_commit = !isValid(cause) && (isMMIO || isLrScAmo);
Bool non_mmio_st_done = !isValid(cause) && !isMMIO && x.mem_func == St;
inIfc.rob_setExecuted_doFinishMem(x.tag, getAddr(x.vaddr),
`ifdef INCLUDE_TANDEM_VERIF
store_data, store_data_BE,
`endif
// Bool access_at_commit = True;
Bool non_mmio_st_done = !isValid(cause) && !isMMIO && lol.mem_func == St;
// Bool non_mmio_st_done = !isMMIO && lol.mem_func == St;
inIfc.rob_setExecuted_doFinishMem(lol.tag, getAddr(lol.vaddr),
// `ifdef INCLUDE_TANDEM_VERIF
// store_data, store_data_BE,
// `endif
access_at_commit, non_mmio_st_done
`ifdef RVFI
, ExtraTraceBundle{
regWriteData: memData[pack(x.ldstq_tag)],
memByteEn: unpack(truncate(pack(x.shiftedBE.DataMemAccess) >> getAddr(x.vaddr)[3:0]))
}
`endif
// , ExtraTraceBundle{
// regWriteData: memData[pack(tlbresp.ldstq_tag)],
// memByteEn: unpack(truncate(pack(tlbresp.shiftedBE.DataMemAccess) >> getAddr(tlbresp.vaddr)[3:0]))
// }
// `endif
);
let pc = inIfc.rob_getPC(x.tag);
let pc = inIfc.rob_getPC(lol.tag);
`ifdef PERFORMANCE_MONITORING
`ifdef CONTRACTS_VERIFY
function Bool is_16b_inst (Bit #(n) inst);
return (inst [1:0] != 2'b11);
endfunction
let ppc = inIfc.rob_getPredPC(x.tag);
let inst = inIfc.rob_getOrig_Inst(x.tag);
let ppc = inIfc.rob_getPredPC(lol.tag);
let inst = inIfc.rob_getOrig_Inst(lol.tag);
let validPc = is_16b_inst(inst) ? addPc(pc,2) : addPc(pc,4);
if(cause matches tagged Valid .c &&& (ppc != validPc)) begin
EventsTransExe events_trans = unpack(0);
@@ -749,23 +835,33 @@ module mkMemExePipeline#(MemExeInput inIfc)(MemExePipeline);
`endif
`endif
`ifdef KONATA
$display("KONATAE\t%0d\t%0d\t0\tMem3", cur_cycle, x.u_id);
$display("KONATAS\t%0d\t%0d\t0\tMem4", cur_cycle, x.u_id);
$fflush;
`endif
// `ifdef KONATA
// $display("KONATAE\t%0d\t%0d\t0\tMem3", cur_cycle, tlbresp.u_id);
// $display("KONATAS\t%0d\t%0d\t0\tMem4", cur_cycle, tlbresp.u_id);
// $fflush;
// `endif
// Try me!
// if (x.mem_func == St) begin
// paddr = 256;
// end
// update LSQ
// Important bit that updates memory ?
// LSQUpdateAddrResult updRes <- lsq.updateAddr(
// lol.ldstq_tag, cause, allowCapLoad && allowCapPTE, paddr, isMMIO, shiftBE
// );
LSQUpdateAddrResult updRes <- lsq.updateAddr(
x.ldstq_tag, cause, x.allowCapLoad && allowCapPTE, paddr, isMMIO, x.shiftedBE
lol.ldstq_tag, cause, allowCapLoad && allowCapPTE, paddr, isMMIO, shiftBE
);
// issue non-MMIO Ld which has no exception and is not waiting for
// wrong path resp
if (x.mem_func == Ld && !isMMIO &&
if (lol.mem_func == Ld && !isMMIO &&
!isValid(cause) && !updRes.waitWPResp
&& !updRes.delayIssue) begin
LdQTag ldTag = ?;
if(x.ldstq_tag matches tagged Ld .t) begin
if(lol.ldstq_tag matches tagged Ld .t) begin
ldTag = t;
end
else begin
@@ -774,7 +870,7 @@ module mkMemExePipeline#(MemExeInput inIfc)(MemExePipeline);
issueLd.wset(LSQIssueLdInfo {
tag: ldTag,
paddr: paddr,
shiftedBE: x.shiftedBE,
shiftedBE: shiftBE,
pcHash: hash(getAddr(pc))
});
end

View File

@@ -144,7 +144,7 @@ typedef union tagged {
module mkDTlb#(
function TlbReq getTlbReq(instT inst)
)(DTlb::DTlb#(instT)) provisos(Bits#(instT, a__));
Bool verbose = False;
Bool verbose = True;
// TLB array
DTlbArray tlb <- mkDTlbArray;