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import os
import fnmatch
from . import base
from tuned.utils.commands import commands
from tuned import logs
log = logs.get()
cmd = commands()
SYSFS_DIR = "/sys/devices/system/cpu/intel_uncore_frequency/"
class package2uncores(base.Function):
"""
Provides uncore device list for a package (socket)
"""
def __init__(self):
super(package2uncores, self).__init__("package2uncores", 0)
def execute(self, args):
if not super(package2uncores, self).execute(args):
return None
if len(args) <= 0:
return None
try:
all_uncores = os.listdir(SYSFS_DIR)
except OSError:
return None
# For new TPMI interface use only uncore devices
tpmi_devices = fnmatch.filter(all_uncores, 'uncore*')
if len(tpmi_devices) > 0:
is_tpmi = True
all_uncores = tpmi_devices
else:
is_tpmi = False
devices = []
for uncore in all_uncores:
if is_tpmi:
f = SYSFS_DIR + uncore + "/package_id"
if not os.path.exists(f):
log.warning("File '%s' does not exist" % f)
continue
value = cmd.read_file(f)
else:
# uncore string is in form: package_NN_die_MM, do not expect more than 99 packages
value = uncore[8:10]
try:
package_id = int(value)
except ValueError:
log.warning("Invalid package id '%s' for uncore '%s'" % (value, uncore))
continue
for package_pattern in args:
try:
this_package_id = int(package_pattern)
except ValueError:
if fnmatch.fnmatch(value, package_pattern):
devices.append(uncore)
else:
if package_id == this_package_id:
devices.append(uncore)
return ",".join(devices) if len(devices) > 0 else None