| Line 82... |
Line 82... |
rand bit crc_error;
|
rand bit crc_error;
|
|
|
// helper fields
|
// helper fields
|
rand int flit_delay;
|
rand int flit_delay;
|
|
|
|
int timestamp;
|
|
|
`uvm_object_utils_begin(hmc_packet)
|
`uvm_object_utils_begin(hmc_packet)
|
`uvm_field_int(flit_delay, UVM_ALL_ON | UVM_NOPACK | UVM_DEC | UVM_NOCOMPARE | UVM_DEC)
|
`uvm_field_int(flit_delay, UVM_ALL_ON | UVM_NOPACK | UVM_DEC | UVM_NOCOMPARE | UVM_DEC)
|
`uvm_field_int(cube_ID, UVM_ALL_ON | UVM_NOPACK | UVM_DEC)
|
`uvm_field_int(cube_ID, UVM_ALL_ON | UVM_NOPACK | UVM_DEC)
|
`uvm_field_int(address, UVM_ALL_ON | UVM_NOPACK | UVM_HEX)
|
`uvm_field_int(address, UVM_ALL_ON | UVM_NOPACK | UVM_HEX)
|
`uvm_field_int(tag, UVM_ALL_ON | UVM_NOPACK | UVM_DEC)
|
`uvm_field_int(tag, UVM_ALL_ON | UVM_NOPACK | UVM_DEC)
|
| Line 104... |
Line 106... |
`uvm_field_int(data_invalid, UVM_ALL_ON | UVM_NOPACK | UVM_DEC)
|
`uvm_field_int(data_invalid, UVM_ALL_ON | UVM_NOPACK | UVM_DEC)
|
`uvm_field_int(poisoned, UVM_ALL_ON | UVM_NOPACK | UVM_DEC)
|
`uvm_field_int(poisoned, UVM_ALL_ON | UVM_NOPACK | UVM_DEC)
|
`uvm_field_int(crc_error, UVM_ALL_ON | UVM_NOPACK | UVM_DEC)
|
`uvm_field_int(crc_error, UVM_ALL_ON | UVM_NOPACK | UVM_DEC)
|
`uvm_object_utils_end
|
`uvm_object_utils_end
|
|
|
//constraint c_payload_size { packet_length == 1 || payload.size() == packet_length - 1; }
|
|
constraint c_poisoned { poisoned == 0; }
|
constraint c_poisoned { poisoned == 0; }
|
constraint c_cube_id {cube_ID ==0;}
|
constraint c_cube_id {cube_ID ==0;}
|
constraint c_address {address ==0;}
|
constraint c_address {
|
|
soft address < 80000000;
|
|
((command & `HMC_TYPE_MASK) == HMC_FLOW_TYPE) -> address == 0;
|
|
soft address[3:0]==4'h0;
|
|
}
|
|
constraint c_source_link_ID {source_link_ID ==0;}
|
constraint c_crc_error { crc_error == 0; }
|
constraint c_crc_error { crc_error == 0; }
|
constraint c_matching_length { packet_length == duplicate_length; }
|
constraint c_matching_length { packet_length == duplicate_length; }
|
constraint c_return_tag { return_tag == 0; }
|
constraint c_return_tag { return_tag == 0; }
|
constraint c_packet_length { (
|
constraint c_packet_length { (
|
(packet_length == 2 && command == HMC_POSTED_WRITE_16) ||
|
(packet_length == 2 && command == HMC_POSTED_WRITE_16) ||
|
| Line 141... |
Line 147... |
(packet_length == 1 && (command & `HMC_TYPE_MASK) == HMC_FLOW_TYPE)
|
(packet_length == 1 && (command & `HMC_TYPE_MASK) == HMC_FLOW_TYPE)
|
); }
|
); }
|
constraint c_flit_delay {
|
constraint c_flit_delay {
|
soft flit_delay dist{0:/90, [1:8]:/8, [8:200]:/2 };
|
soft flit_delay dist{0:/90, [1:8]:/8, [8:200]:/2 };
|
}
|
}
|
|
constraint c_error_status {
|
|
soft error_status == 0;
|
|
}
|
|
|
|
constraint c_data_invalid {
|
|
soft data_invalid == 0;
|
|
}
|
|
|
|
|
|
constraint c_pret {
|
|
(command == HMC_PRET)-> forward_retry_pointer ==0;
|
|
(command == HMC_PRET)-> sequence_number ==0;
|
|
}
|
|
constraint c_irtry{
|
|
(command == HMC_IRTRY) -> start_retry != clear_error_abort;
|
|
((command == HMC_IRTRY)&&(start_retry)) ->forward_retry_pointer == 1;
|
|
((command == HMC_IRTRY)&&(clear_error_abort)) ->forward_retry_pointer == 2;
|
|
(command == HMC_IRTRY) -> sequence_number == 0;
|
|
}
|
|
|
|
constraint c_flow {
|
|
((command & `HMC_TYPE_MASK) == HMC_FLOW_TYPE) -> tag == 0;
|
|
((command & `HMC_TYPE_MASK) == HMC_FLOW_TYPE) -> cube_ID == 0;
|
|
}
|
|
|
function new (string name = "hmc_packet");
|
function new (string name = "hmc_packet");
|
super.new(name);
|
super.new(name);
|
endfunction : new
|
endfunction : new
|
|
|
| Line 156... |
Line 186... |
if (packet_length > 9)
|
if (packet_length > 9)
|
`uvm_fatal(get_type_name(),$psprintf("post_randomize packet_length = %0d",packet_length))
|
`uvm_fatal(get_type_name(),$psprintf("post_randomize packet_length = %0d",packet_length))
|
|
|
`uvm_info("AXI Packet queued",$psprintf("%0s packet_length = %0d",command.name(), packet_length), UVM_HIGH)
|
`uvm_info("AXI Packet queued",$psprintf("%0s packet_length = %0d",command.name(), packet_length), UVM_HIGH)
|
|
|
|
|
if (packet_length < 2)
|
if (packet_length < 2)
|
return;
|
return;
|
|
|
for (int i=0; i
|
for (int i=0; i
|
randomize_flit_successful : assert (std::randomize(rand_flit));
|
randomize_flit_successful : assert (std::randomize(rand_flit));
|
| Line 173... |
Line 202... |
end
|
end
|
|
|
if ((command == HMC_MODE_WRITE)|| (command == HMC_MODE_READ)) begin
|
if ((command == HMC_MODE_WRITE)|| (command == HMC_MODE_READ)) begin
|
payload[0][127:32] = 96'b0;
|
payload[0][127:32] = 96'b0;
|
end
|
end
|
|
|
|
|
endfunction
|
endfunction
|
|
|
function hmc_command_type get_command_type();
|
function hmc_command_type get_command_type();
|
|
|
case(command & `HMC_TYPE_MASK)
|
case(command & `HMC_TYPE_MASK)
|
| Line 214... |
Line 241... |
value that can be compared with the CRC value that was removed from the tail. If the two
|
value that can be compared with the CRC value that was removed from the tail. If the two
|
compare, the CRC check indicates no bit failures within the packet.
|
compare, the CRC check indicates no bit failures within the packet.
|
*/
|
*/
|
|
|
function bit [31:0] calculate_crc();
|
function bit [31:0] calculate_crc();
|
bit [32:0] polynomial = 33'h1741B8CD7; // Normal
|
|
bit [32:0] remainder = 33'h0;
|
|
bit bitstream[];
|
bit bitstream[];
|
int bits_packed=0;
|
packer_succeeded : assert (pack(bitstream) > 0);
|
|
return calc_crc(bitstream);
|
bits_packed = pack(bitstream);
|
endfunction : calculate_crc
|
packer_succeeded : assert (bits_packed > 0);
|
|
|
|
/*
|
function bit [31:0] calc_crc(bit bitstream[]);
|
if (bits_packed > 128) begin //DEBUG
|
bit [32:0] polynomial = 33'h1741B8CD7; // Normal
|
bit [127:0] flits[9];
|
|
for( int i=0; i < bits_packed; i++)
|
|
flits[i/128][i%128] = bitstream[i];
|
|
for( int i=0; i < bits_packed/128; i++)
|
|
`uvm_info(get_type_name(),$psprintf("calculate_crc flits[%0x] %0x",i,flits[i]), UVM_HIGH)
|
|
end
|
|
*/
|
|
|
|
for( int i=0; i < bits_packed-32; i++ ) begin // without the CRC
|
bit [32:0] remainder = 33'h0;
|
|
for( int i=0; i < bitstream.size()-32; i++ ) begin // without the CRC
|
remainder = {remainder[31:0], bitstream[i]};
|
remainder = {remainder[31:0], bitstream[i]};
|
if( remainder[32] ) begin
|
if( remainder[32] ) begin
|
remainder = remainder ^ polynomial;
|
remainder = remainder ^ polynomial;
|
end
|
end
|
end
|
end
|
| Line 247... |
Line 265... |
remainder = remainder ^ polynomial;
|
remainder = remainder ^ polynomial;
|
end
|
end
|
end
|
end
|
|
|
return remainder[31:0];
|
return remainder[31:0];
|
|
endfunction : calc_crc
|
endfunction : calculate_crc
|
|
|
|
virtual function void do_pack(uvm_packer packer);
|
virtual function void do_pack(uvm_packer packer);
|
|
|
super.do_pack(packer);
|
super.do_pack(packer);
|
packer.big_endian = 0;
|
packer.big_endian = 0;
|
| Line 265... |
Line 282... |
HMC_PRET: packer.pack_field ( {3'h0, 3'h0, 34'h0, 9'h0, duplicate_length[3:0], packet_length[3:0], 1'b0, command[5:0]}, 64);
|
HMC_PRET: packer.pack_field ( {3'h0, 3'h0, 34'h0, 9'h0, duplicate_length[3:0], packet_length[3:0], 1'b0, command[5:0]}, 64);
|
HMC_TRET: packer.pack_field ( {3'h0, 3'h0, 34'h0, 9'h0, duplicate_length[3:0], packet_length[3:0], 1'b0, command[5:0]}, 64);
|
HMC_TRET: packer.pack_field ( {3'h0, 3'h0, 34'h0, 9'h0, duplicate_length[3:0], packet_length[3:0], 1'b0, command[5:0]}, 64);
|
HMC_IRTRY: packer.pack_field ( {3'h0, 3'h0, 34'h0, 9'h0, duplicate_length[3:0], packet_length[3:0], 1'b0, command[5:0]}, 64);
|
HMC_IRTRY: packer.pack_field ( {3'h0, 3'h0, 34'h0, 9'h0, duplicate_length[3:0], packet_length[3:0], 1'b0, command[5:0]}, 64);
|
default: uvm_report_fatal(get_type_name(), $psprintf("pack function called for a hmc_packet with an illegal FLOW type='h%0h!", command));
|
default: uvm_report_fatal(get_type_name(), $psprintf("pack function called for a hmc_packet with an illegal FLOW type='h%0h!", command));
|
endcase
|
endcase
|
HMC_READ_TYPE: packer.pack_field ( {cube_ID[2:0], 3'h0, 34'h0, tag[8:0], duplicate_length[3:0], packet_length[3:0], 1'b0, command[5:0]}, 64);
|
HMC_READ_TYPE: packer.pack_field ( {cube_ID[2:0], 3'h0, address[33:0], tag[8:0], duplicate_length[3:0], packet_length[3:0], 1'b0, command[5:0]}, 64);
|
HMC_MODE_READ_TYPE: packer.pack_field ( {cube_ID[2:0], 3'h0, address[33:0], tag[8:0], duplicate_length[3:0], packet_length[3:0], 1'b0, command[5:0]}, 64);
|
HMC_MODE_READ_TYPE: packer.pack_field ( {cube_ID[2:0], 3'h0, 34'h0, tag[8:0], duplicate_length[3:0], packet_length[3:0], 1'b0, command[5:0]}, 64);
|
HMC_POSTED_WRITE_TYPE: packer.pack_field ( {cube_ID[2:0], 3'h0, address[33:0], tag[8:0], duplicate_length[3:0], packet_length[3:0], 1'b0, command[5:0]}, 64);
|
HMC_POSTED_WRITE_TYPE: packer.pack_field ( {cube_ID[2:0], 3'h0, address[33:0], tag[8:0], duplicate_length[3:0], packet_length[3:0], 1'b0, command[5:0]}, 64);
|
HMC_WRITE_TYPE: packer.pack_field ( {cube_ID[2:0], 3'h0, address[33:0], tag[8:0], duplicate_length[3:0], packet_length[3:0], 1'b0, command[5:0]}, 64);
|
HMC_WRITE_TYPE: packer.pack_field ( {cube_ID[2:0], 3'h0, address[33:0], tag[8:0], duplicate_length[3:0], packet_length[3:0], 1'b0, command[5:0]}, 64);
|
HMC_POSTED_MISC_WRITE_TYPE: packer.pack_field ( {cube_ID[2:0], 3'h0, address[33:0], tag[8:0], duplicate_length[3:0], packet_length[3:0], 1'b0, command[5:0]}, 64);
|
HMC_POSTED_MISC_WRITE_TYPE: packer.pack_field ( {cube_ID[2:0], 3'h0, address[33:0], tag[8:0], duplicate_length[3:0], packet_length[3:0], 1'b0, command[5:0]}, 64);
|
HMC_MISC_WRITE_TYPE: packer.pack_field ( {cube_ID[2:0], 3'h0, 34'h0, tag[8:0], duplicate_length[3:0], packet_length[3:0], 1'b0, command[5:0]}, 64);
|
HMC_MISC_WRITE_TYPE: packer.pack_field ( {cube_ID[2:0], 3'h0, address[33:0], tag[8:0], duplicate_length[3:0], packet_length[3:0], 1'b0, command[5:0]}, 64);
|
HMC_RESPONSE_TYPE: packer.pack_field ( {22'h0, source_link_ID[2:0], 6'h0, return_tag[8:0], tag[8:0], duplicate_length[3:0], packet_length[3:0], 1'b0, command[5:0]}, 64);
|
HMC_RESPONSE_TYPE: packer.pack_field ( {22'h0, source_link_ID[2:0], 6'h0, return_tag[8:0], tag[8:0], duplicate_length[3:0], packet_length[3:0], 1'b0, command[5:0]}, 64);
|
default: uvm_report_fatal(get_type_name(), $psprintf("pack function called for a hmc_packet with an illegal command type='h%0h!", command));
|
default: uvm_report_fatal(get_type_name(), $psprintf("pack function called for a hmc_packet with an illegal command type='h%0h!", command));
|
endcase
|
endcase
|
|
|
// Allow for errors when packet_length != duplicate_length
|
// Allow for errors when packet_length != duplicate_length
|
| Line 306... |
Line 323... |
endfunction : do_pack
|
endfunction : do_pack
|
|
|
|
|
virtual function void do_unpack(uvm_packer packer);
|
virtual function void do_unpack(uvm_packer packer);
|
bit [63:0] header;
|
bit [63:0] header;
|
|
bit [63:0] tail;
|
bit [31:0] calculated_crc;
|
bit [31:0] calculated_crc;
|
bit [21:0] rsvd22;
|
bit [21:0] rsvd22;
|
bit [5:0] rsvd6;
|
bit [5:0] rsvd6;
|
bit [4:0] rsvd5;
|
bit [4:0] rsvd5;
|
bit [2:0] rsvd3;
|
bit [2:0] rsvd3;
|
bit rsvd1;
|
bit rsvd1;
|
|
|
|
bit bitstream[];
|
|
|
super.do_unpack(packer);
|
super.do_unpack(packer);
|
packer.big_endian = 0;
|
packer.big_endian = 0;
|
|
|
|
packer.get_bits(bitstream);
|
|
|
|
for (int i = 0; i <32; i++)begin
|
|
packet_crc[i] = bitstream[bitstream.size()-32 +i];
|
|
end
|
|
|
|
calculated_crc = calc_crc(bitstream);
|
// header
|
// header
|
header = packer.unpack_field(64);
|
header = packer.unpack_field(64);
|
command[5:0] = header[5:0];
|
command[5:0] = header[5:0];//-- doppelt?
|
|
|
if (get_command_type != HMC_RESPONSE_TYPE)
|
if (get_command_type != HMC_RESPONSE_TYPE)
|
{cube_ID[2:0], rsvd3, address[33:0], tag[8:0], duplicate_length[3:0], packet_length[3:0], rsvd1, command[5:0]} = header;
|
{cube_ID[2:0], rsvd3, address[33:0], tag[8:0], duplicate_length[3:0], packet_length[3:0], rsvd1, command[5:0]} = header;
|
else
|
else
|
{rsvd22[21:0], source_link_ID[2:0], rsvd6[5:0], return_tag[8:0], tag[8:0], duplicate_length[3:0], packet_length[3:0], rsvd1, command[5:0]} = header;
|
{rsvd22[21:0], source_link_ID[2:0], rsvd6[5:0], return_tag[8:0], tag[8:0], duplicate_length[3:0], packet_length[3:0], rsvd1, command[5:0]} = header;
|
|
|
// Unpack should not be called with length errors
|
// Unpack should not be called with length errors
|
if (duplicate_length != packet_length || packet_length == 0)
|
if (duplicate_length != packet_length || packet_length == 0)
|
`uvm_fatal(get_type_name(), $psprintf("do_unpack: length mismatch dln=%0d len=%0d cmd=%0d!", duplicate_length, packet_length, command));
|
`uvm_fatal(get_type_name(), $psprintf("do_unpack: length mismatch dln=%0d len=%0d cmd=%0d!", duplicate_length, packet_length, command));
|
|
|
// payload
|
// payload
|
for (int i = 0; i < packet_length-1; i++)
|
for (int i = 0; i < packet_length-1; i++)
|
payload.push_back(packer.unpack_field(128));
|
payload.push_back(packer.unpack_field(128));
|
|
|
// tail
|
// tail
|
|
tail = packer.unpack_field(64);
|
if (get_command_type != HMC_RESPONSE_TYPE)
|
if (get_command_type != HMC_RESPONSE_TYPE)
|
{packet_crc[31:0], return_token_count[4:0], source_link_ID[2:0], rsvd5, sequence_number[2:0], forward_retry_pointer[7:0], return_retry_pointer[7:0]} = packer.unpack_field(64);
|
{packet_crc[31:0], return_token_count[4:0], source_link_ID[2:0], rsvd5, sequence_number[2:0], forward_retry_pointer[7:0], return_retry_pointer[7:0]} = tail;
|
else
|
else
|
{packet_crc[31:0], return_token_count[4:0], error_status[6:0], data_invalid, sequence_number[2:0], forward_retry_pointer[7:0], return_retry_pointer[7:0]} = packer.unpack_field(64);
|
{packet_crc[31:0], return_token_count[4:0], error_status[6:0], data_invalid, sequence_number[2:0], forward_retry_pointer[7:0], return_retry_pointer[7:0]} = tail;
|
|
|
start_retry = (command == HMC_IRTRY ? forward_retry_pointer[0] : 1'b0);
|
start_retry = (command == HMC_IRTRY ? forward_retry_pointer[0] : 1'b0);
|
clear_error_abort = (command == HMC_IRTRY ? forward_retry_pointer[1] : 1'b0);
|
clear_error_abort = (command == HMC_IRTRY ? forward_retry_pointer[1] : 1'b0);
|
|
|
calculated_crc = calculate_crc();
|
crc_error = 0;
|
|
|
// Inverted CRC means poisoned
|
|
poisoned = (packet_crc == ~calculated_crc) ? 1'b1 : 1'b0;
|
poisoned = (packet_crc == ~calculated_crc) ? 1'b1 : 1'b0;
|
|
if (packet_crc != calculated_crc && !poisoned )
|
crc_error = (packet_crc != calculated_crc && !poisoned) ? 1'b1 : 1'b0;
|
begin
|
|
crc_error = 1;
|
|
end
|
endfunction : do_unpack
|
endfunction : do_unpack
|
|
|
|
|
virtual function bit compare_adaptive_packet(hmc_packet rhs, uvm_comparer comparer);
|
virtual function bit compare_adaptive_packet(hmc_packet rhs, uvm_comparer comparer);
|
|
|
