if args.test_modules:
hw_memset(wb, 0x0, mem_range, [0xffffffff], args.dbg)
# --------------------------- Introduce error ------------------------
rng = random.Random(datetime.now())
offsets = []
for i, n in enumerate(range(0, 5000)):
print('Generated {:d} offsets'.format(i), end='\r')
offset = rng.randrange(0x0, mem_range - 4)
offset &= ~0b11 # must be 32-bit aligned
if offset // nbytes not in offsets:
offsets.append(offset // nbytes)
if args.dbg:
print('dbg: offset: ' + str(offset))
wb.write(mem_base + offset,
wb.read(mem_base + offset) ^ 0x000010000)
print()
# Corner case
#offsets.append((mem_range - 4)//16)
#wb.write(mem_base + mem_range - 4, wb.read(mem_base + mem_range - 4) ^ 0x00100000)
#if args.dbg:
# print('dbg: 0x{:08x}: 0x{:08x}'.format(mem_base + mem_range - 4, wb.read(mem_base + mem_range - 4)))
print('dbg: offsets: {:d}'.format(len(offsets)))
# --------------------------------------------------------------------
start_time = time.time()
errors = hw_memtest(wb, 0x0, mem_range, [0xffffffff], args.dbg)
end_time = time.time()
from datetime import datetime
from rowhammer_tester.scripts.utils import RemoteClient
if __name__ == "__main__":
wb = RemoteClient()
wb.open()
# --------------------------------------------------------------------
wb.regs.writer_start.write(0)
wb.regs.writer_reset.write(1)
time.sleep(10000 / 1e6)
wb.regs.writer_reset.write(0)
wb.write(0x20000000, 0xffffffff) # patttern
wb.write(0x21000000, 0xffffffff) # patttern
wb.write(0x22000000, 0xffffffff) # patttern
wb.write(0x23000000, 0xffffffff) # patttern
wb.write(0x24000000, 0x00000000) # offset
mem_range = 256 * 1024 * 1024 # bytes
mem_mask = (mem_range // 4 // 4) - 1
mem_count = mem_mask
wb.regs.writer_mem_mask.write(mem_mask) # memory range
wb.regs.writer_data_mask.write(0x00000000) # just pattern from address 0x0
wb.regs.writer_count.write(mem_count)
wb.regs.writer_start.write(1)
while True: