/* * Copyright 2007-2012 Siemens AG * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 * as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * Written by: * Dmitry Eremin-Solenikov * Sergey Lapin * Maxim Gorbachyov * Alexander Smirnov */ #include #include #include #include #include "ieee802154_i.h" #include "driver-ops.h" void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan) { struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); struct ieee802154_local *local = sdata->local; int res; ASSERT_RTNL(); BUG_ON(dev->type != ARPHRD_IEEE802154); res = drv_set_channel(local, page, chan); if (res) { pr_debug("set_channel failed\n"); } else { local->phy->current_channel = chan; local->phy->current_page = page; } } int mac802154_get_params(struct net_device *dev, struct ieee802154_llsec_params *params) { struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); int res; BUG_ON(dev->type != ARPHRD_IEEE802154); mutex_lock(&sdata->sec_mtx); res = mac802154_llsec_get_params(&sdata->sec, params); mutex_unlock(&sdata->sec_mtx); return res; } int mac802154_set_params(struct net_device *dev, const struct ieee802154_llsec_params *params, int changed) { struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); int res; BUG_ON(dev->type != ARPHRD_IEEE802154); mutex_lock(&sdata->sec_mtx); res = mac802154_llsec_set_params(&sdata->sec, params, changed); mutex_unlock(&sdata->sec_mtx); return res; } int mac802154_add_key(struct net_device *dev, const struct ieee802154_llsec_key_id *id, const struct ieee802154_llsec_key *key) { struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); int res; BUG_ON(dev->type != ARPHRD_IEEE802154); mutex_lock(&sdata->sec_mtx); res = mac802154_llsec_key_add(&sdata->sec, id, key); mutex_unlock(&sdata->sec_mtx); return res; } int mac802154_del_key(struct net_device *dev, const struct ieee802154_llsec_key_id *id) { struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); int res; BUG_ON(dev->type != ARPHRD_IEEE802154); mutex_lock(&sdata->sec_mtx); res = mac802154_llsec_key_del(&sdata->sec, id); mutex_unlock(&sdata->sec_mtx); return res; } int mac802154_add_dev(struct net_device *dev, const struct ieee802154_llsec_device *llsec_dev) { struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); int res; BUG_ON(dev->type != ARPHRD_IEEE802154); mutex_lock(&sdata->sec_mtx); res = mac802154_llsec_dev_add(&sdata->sec, llsec_dev); mutex_unlock(&sdata->sec_mtx); return res; } int mac802154_del_dev(struct net_device *dev, __le64 dev_addr) { struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); int res; BUG_ON(dev->type != ARPHRD_IEEE802154); mutex_lock(&sdata->sec_mtx); res = mac802154_llsec_dev_del(&sdata->sec, dev_addr); mutex_unlock(&sdata->sec_mtx); return res; } int mac802154_add_devkey(struct net_device *dev, __le64 device_addr, const struct ieee802154_llsec_device_key *key) { struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); int res; BUG_ON(dev->type != ARPHRD_IEEE802154); mutex_lock(&sdata->sec_mtx); res = mac802154_llsec_devkey_add(&sdata->sec, device_addr, key); mutex_unlock(&sdata->sec_mtx); return res; } int mac802154_del_devkey(struct net_device *dev, __le64 device_addr, const struct ieee802154_llsec_device_key *key) { struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); int res; BUG_ON(dev->type != ARPHRD_IEEE802154); mutex_lock(&sdata->sec_mtx); res = mac802154_llsec_devkey_del(&sdata->sec, device_addr, key); mutex_unlock(&sdata->sec_mtx); return res; } int mac802154_add_seclevel(struct net_device *dev, const struct ieee802154_llsec_seclevel *sl) { struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); int res; BUG_ON(dev->type != ARPHRD_IEEE802154); mutex_lock(&sdata->sec_mtx); res = mac802154_llsec_seclevel_add(&sdata->sec, sl); mutex_unlock(&sdata->sec_mtx); return res; } int mac802154_del_seclevel(struct net_device *dev, const struct ieee802154_llsec_seclevel *sl) { struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); int res; BUG_ON(dev->type != ARPHRD_IEEE802154); mutex_lock(&sdata->sec_mtx); res = mac802154_llsec_seclevel_del(&sdata->sec, sl); mutex_unlock(&sdata->sec_mtx); return res; } void mac802154_lock_table(struct net_device *dev) { struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); BUG_ON(dev->type != ARPHRD_IEEE802154); mutex_lock(&sdata->sec_mtx); } void mac802154_get_table(struct net_device *dev, struct ieee802154_llsec_table **t) { struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); BUG_ON(dev->type != ARPHRD_IEEE802154); *t = &sdata->sec.table; } void mac802154_unlock_table(struct net_device *dev) { struct ieee802154_sub_if_data *sdata = IEEE802154_DEV_TO_SUB_IF(dev); BUG_ON(dev->type != ARPHRD_IEEE802154); mutex_unlock(&sdata->sec_mtx); } e373e09fb16b83e8adf5c48c421a4ca76468'>patch) tree55703c2ea8584e303e342090614e0aab3509ab21 /tools/testing/selftests/x86/single_step_syscall.c parent0b3589be9b98994ce3d5aeca52445d1f5627c4ba (diff)
perf/x86/intel/rapl: Make package handling more robust
The package management code in RAPL relies on package mapping being available before a CPU is started. This changed with: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") because the ACPI/BIOS information turned out to be unreliable, but that left RAPL in broken state. This was not noticed because on a regular boot all CPUs are online before RAPL is initialized. A possible fix would be to reintroduce the mess which allocates a package data structure in CPU prepare and when it turns out to already exist in starting throw it away later in the CPU online callback. But that's a horrible hack and not required at all because RAPL becomes functional for perf only in the CPU online callback. That's correct because user space is not yet informed about the CPU being onlined, so nothing caan rely on RAPL being available on that particular CPU. Move the allocation to the CPU online callback and simplify the hotplug handling. At this point the package mapping is established and correct. This also adds a missing check for available package data in the event_init() function. Reported-by: Yasuaki Ishimatsu <yasu.isimatu@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Stephane Eranian <eranian@google.com> Cc: Vince Weaver <vincent.weaver@maine.edu> Fixes: 9d85eb9119f4 ("x86/smpboot: Make logical package management more robust") Link: http://lkml.kernel.org/r/20170131230141.212593966@linutronix.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/testing/selftests/x86/single_step_syscall.c')