diff options
Diffstat (limited to 'tests/tcg/aarch64/gdbstub/test-sme.py')
| -rw-r--r-- | tests/tcg/aarch64/gdbstub/test-sme.py | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/tests/tcg/aarch64/gdbstub/test-sme.py b/tests/tcg/aarch64/gdbstub/test-sme.py new file mode 100644 index 0000000..ec03189 --- /dev/null +++ b/tests/tcg/aarch64/gdbstub/test-sme.py @@ -0,0 +1,117 @@ +# +# Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries. +# +# SPDX-License-Identifier: GPL-2.0-or-later + +# +# Test the SME registers are visible and changeable via gdbstub +# +# This is launched via tests/guest-debug/run-test.py +# + +import argparse +import gdb +from test_gdbstub import main, report + +MAGIC = 0x01020304 +BASIC_ZA_TEST = 0 +TILE_SLICE_TEST = 0 + + +def run_test(): + """Run the requested test(s) for SME ZA gdbstub support""" + + if BASIC_ZA_TEST: + run_basic_sme_za_gdbstub_support_test() + if TILE_SLICE_TEST: + run_basic_sme_za_tile_slice_gdbstub_support_test() + + +def run_basic_sme_za_gdbstub_support_test(): + """Test reads and writes to the SME ZA register at the byte level""" + + frame = gdb.selected_frame() + rname = "za" + za = frame.read_register(rname) + report(True, "Reading %s" % rname) + + # Writing to the ZA register, byte by byte. + for i in range(0, 16): + for j in range(0, 16): + cmd = "set $za[%d][%d] = 0x01" % (i, j) + gdb.execute(cmd) + report(True, "%s" % cmd) + + # Reading from the ZA register, byte by byte. + for i in range(0, 16): + for j in range(0, 16): + reg = "$za[%d][%d]" % (i, j) + v = gdb.parse_and_eval(reg) + report(str(v.type) == "uint8_t", "size of %s" % (reg)) + report(v == 0x1, "%s is 0x%x" % (reg, 0x1)) + + +def run_basic_sme_za_tile_slice_gdbstub_support_test(): + """Test reads and writes of SME ZA horizontal and vertical tile slices + + Test if SME ZA tile slices, both horizontal and vertical, + can be correctly read and written to. The sizes to test + are quadwords and doublewords. + """ + + sizes = {} + sizes["q"] = "uint128_t" + sizes["d"] = "uint64_t" + + # Accessing requested sizes of elements of ZA + for size in sizes: + + # Accessing various ZA tiles + for i in range(0, 4): + + # Accessing various horizontal slices for each ZA tile + for j in range(0, 4): + # Writing to various elements in each tile slice + for k in range(0, 4): + cmd = "set $za%dh%c%d[%d] = 0x%x" % (i, size, j, k, MAGIC) + gdb.execute(cmd) + report(True, "%s" % cmd) + + # Reading from the written elements in each tile slice + for k in range(0, 4): + reg = "$za%dh%c%d[%d]" % (i, size, j, k) + v = gdb.parse_and_eval(reg) + report(str(v.type) == sizes[size], "size of %s" % (reg)) + report(v == MAGIC, "%s is 0x%x" % (reg, MAGIC)) + + # Accessing various vertical slices for each ZA tile + for j in range(0, 4): + # Writing to various elements in each tile slice + for k in range(0, 4): + cmd = "set $za%dv%c%d[%d] = 0x%x" % (i, size, j, k, MAGIC) + gdb.execute(cmd) + report(True, "%s" % cmd) + + # Reading from the written elements in each tile slice + for k in range(0, 4): + reg = "$za%dv%c%d[%d]" % (i, size, j, k) + v = gdb.parse_and_eval(reg) + report(str(v.type) == sizes[size], "size of %s" % (reg)) + report(v == MAGIC, "%s is 0x%x" % (reg, MAGIC)) + + +parser = argparse.ArgumentParser(description="A gdbstub test for SME support") +parser.add_argument("--gdb_basic_za_test", + help="Enable test for basic SME ZA support", + action="store_true") +parser.add_argument("--gdb_tile_slice_test", + help="Enable test for ZA tile slice support", + action="store_true") +args = parser.parse_args() + +if args.gdb_basic_za_test: + BASIC_ZA_TEST = 1 +if args.gdb_tile_slice_test: + TILE_SLICE_TEST = 1 + +main(run_test, expected_arch="aarch64") |