def dump_psram(config):
print("\t<RTCT>", file=config)
rtct = None
if os.path.exists("/sys/firmware/acpi/tables/PTCT"):
rtct = parse_rtct(path="/sys/firmware/acpi/tables/PTCT")
elif os.path.exists("/sys/firmware/acpi/tables/RTCT"):
rtct = parse_rtct(path="/sys/firmware/acpi/tables/RTCT")
if rtct:
for entry in rtct.entries:
if entry.type == acpiparser.rtct.ACPI_RTCT_TYPE_SoftwareSRAM:
print("\t\t<SoftwareSRAM>", file=config)
print("\t\t\t<cache_level>{}</cache_level>".format(
entry.cache_level),
file=config)
print("\t\t\t<base>{}</base>".format(hex(entry.base)),
file=config)
print("\t\t\t<ways>{}</ways>".format(hex(entry.ways)),
file=config)
print("\t\t\t<size>{}</size>".format(hex(entry.size)),
file=config)
for apic_id in entry.apic_id_tbl:
print("\t\t\t<apic_id>{}</apic_id>".format(hex(apic_id)),
file=config)
print("\t\t</SoftwareSRAM>", file=config)
else:
parser_lib.print_yel(
"No PTCT or RTCT found. The platform may not support pseudo RAM.")
print("\t</RTCT>", file=config)
print("", file=config)
def extract_tcc_capabilities(caches_node):
try:
rtct = parse_rtct()
if rtct.version == 1:
for entry in rtct.entries:
if entry.type == acpiparser.rtct.ACPI_RTCT_V1_TYPE_SoftwareSRAM:
cache_node = get_node(
caches_node,
f"cache[@level='{entry.cache_level}' and processors/processor='{hex(entry.apic_id_tbl[0])}']"
)
if cache_node is None:
logging.warning(
f"Cannot find the level {entry.cache_level} cache of physical processor with apic ID {entry.apic_id_tbl[0]}"
)
continue
cap = add_child(cache_node,
"capability",
None,
id="Software SRAM")
add_child(cap, "start", "0x{:08x}".format(entry.base))
add_child(cap, "end",
"0x{:08x}".format(entry.base + entry.size - 1))
add_child(cap, "size", str(entry.size))
elif rtct.version == 2:
for entry in rtct.entries:
if entry.type == acpiparser.rtct.ACPI_RTCT_V2_TYPE_SoftwareSRAM:
cache_node = get_node(
caches_node,
f"cache[@level='{entry.level}' and @id='{hex(entry.cache_id)}']"
)
if cache_node is None:
logging.warning(
f"Cannot find the level {entry.level} cache with cache ID {entry.cache_id}"
)
continue
cap = add_child(cache_node,
"capability",
None,
id="Software SRAM")
add_child(cap, "start", "0x{:08x}".format(entry.base))
add_child(cap, "end",
"0x{:08x}".format(entry.base + entry.size - 1))
add_child(cap, "size", str(entry.size))
except FileNotFoundError:
pass