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2020-03-20mac80211: driver can remain on channel if not using chan_ctxYan-Hsuan Chuang
Some of the drivers are not using channel context, but let the stack to control/switch channels instead. For such cases, driver can still remain on channel because the mac80211 stack actually supports it. The stack will check if the driver is using chan_ctx and has ops->remain_on_channel been hooked. Otherwise it will start its ROC work to remain on channel. So, even if the driver is not using chan_ctx, the driver is still capable of doing remain on channel. Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com> Link: https://lore.kernel.org/r/20200312074337.16198-1-yhchuang@realtek.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20nl80211: clarify code in nl80211_del_station()Johannes Berg
The long if chain of interface types is hard to read, especially now with the additional condition after it. Use a switch statement to clarify this code. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://lore.kernel.org/r/20200320113834.2c51b9e8e341.I3fa5dc3f7d3cb1dbbd77191d764586f7da993f3f@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20cfg80211: Configure PMK lifetime and reauth threshold for PMKSA entriesVeerendranath Jakkam
Drivers that trigger roaming need to know the lifetime of the configured PMKSA for deciding whether to trigger the full or PMKSA cache based authentication. The configured PMKSA is invalid after the PMK lifetime has expired and must not be used after that and the STA needs to disassociate if the PMK expires. Hence the STA is expected to refresh the PMK with a full authentication before this happens (e.g., when reassociating to a new BSS the next time or by performing EAPOL reauthentication depending on the AKM) to avoid unnecessary disconnection. The PMK reauthentication threshold is the percentage of the PMK lifetime value and indicates to the driver to trigger a full authentication roam (without PMKSA caching) after the reauthentication threshold time, but before the PMK timer has expired. Authentication methods like SAE need to be able to generate a new PMKSA entry without having to force a disconnection after this threshold timeout. If no roaming occurs between the reauthentication threshold time and PMK lifetime expiration, disassociation is still forced. The new attributes for providing these values correspond to the dot11 MIB variables dot11RSNAConfigPMKLifetime and dot11RSNAConfigPMKReauthThreshold. This type of functionality is already available in cases where user space component is in control of roaming. This commit extends that same capability into cases where parts or all of this functionality is offloaded to the driver. Signed-off-by: Veerendranath Jakkam <vjakkam@codeaurora.org> Signed-off-by: Jouni Malinen <jouni@codeaurora.org> Link: https://lore.kernel.org/r/20200312235903.18462-1-jouni@codeaurora.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20mac80211: Read rx_stats with perCPU pointersSeevalamuthu Mariappan
Use perCPU pointers to get rx_stats in sta_set_sinfo when RSS is enabled Signed-off-by: Seevalamuthu Mariappan <seevalam@codeaurora.org> Link: https://lore.kernel.org/r/1584526555-25960-1-git-send-email-seevalam@codeaurora.org Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20virt_wifi: implement ndo_get_iflinkTaehee Yoo
->ndo_get_iflink() is useful for finding lower interface. Test commands: ip link add dummy0 type dummy ip link add vw1 link dummy0 type virt_wifi ip link show vw1 Before: 9: vw1: <BROADCAST,MULTICAST> ... After: 9: vw1@dummy0: <BROADCAST,MULTICAST> ... Signed-off-by: Taehee Yoo <ap420073@gmail.com> Link: https://lore.kernel.org/r/20200305090636.28221-1-ap420073@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20mac80211: Allow deleting stations in ibss mode to reset their stateNicolas Cavallari
Set the NL80211_EXT_FEATURE_DEL_IBSS_STA if the interface support IBSS mode, so that stations can be reset from user space. mac80211 already deletes stations by itself, so mac80211 drivers must already support this. This has been successfully tested with ath9k. Signed-off-by: Nicolas Cavallari <nicolas.cavallari@green-communications.fr> Link: https://lore.kernel.org/r/20200305135754.12094-2-cavallar@lri.fr Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20cfg80211: Add support for userspace to reset stations in IBSS modeNicolas Cavallari
Sometimes, userspace is able to detect that a peer silently lost its state (like, if the peer reboots). wpa_supplicant does this for IBSS-RSN by registering for auth/deauth frames, but when it detects this, it is only able to remove the encryption keys of the peer and close its port. However, the kernel also hold other state about the station, such as BA sessions, probe response parameters and the like. They also need to be resetted correctly. This patch adds the NL80211_EXT_FEATURE_DEL_IBSS_STA feature flag indicating the driver accepts deleting stations in IBSS mode, which should send a deauth and reset the state of the station, just like in mesh point mode. Signed-off-by: Nicolas Cavallari <nicolas.cavallari@green-communications.fr> Link: https://lore.kernel.org/r/20200305135754.12094-1-cavallar@lri.fr [preserve -EINVAL return] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20mac80211: consider WLAN_EID_EXT_HE_OPERATION for parsing CRCJohannes Berg
We use the parsing CRC for checking if the beacon changed, and if the WLAN_EID_EXT_HE_OPERATION extended element changes we need to track it so we can react to that. Include it in the CRC calculation. Link: https://lore.kernel.org/r/20200131111300.891737-22-luca@coelho.fi Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20nl80211: add PROTECTED_TWT nl80211 extended featureShaul Triebitz
Add API for telling whether the driver supports protected TWT. The protected_twt capability in the RSNXE will be based on this. Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/20200131111300.891737-23-luca@coelho.fi Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20mac80211: HE: set missing bss_conf fields in AP modeShaul Triebitz
In AP mode, set htc_trig_based_pkt_ext and frame_time_rts_th for driver use. Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/20200131111300.891737-19-luca@coelho.fi Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20nl80211: pass HE operation element to the driverShaul Triebitz
Pass the AP's HE operation element to the driver. Signed-off-by: Shaul Triebitz <shaul.triebitz@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/20200131111300.891737-18-luca@coelho.fi Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20nl80211/cfg80211: add support for non EDCA based ranging measurementAvraham Stern
Add support for requesting that the ranging measurement will use the trigger-based / non trigger-based flow instead of the EDCA based flow. Signed-off-by: Avraham Stern <avraham.stern@intel.com> Signed-off-by: Luca Coelho <luciano.coelho@intel.com> Link: https://lore.kernel.org/r/20200131111300.891737-2-luca@coelho.fi Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20mac80211: don't leave skb->next/prev pointing to stackJohannes Berg
In beacon protection, don't leave skb->next/prev pointing to the on-stack list, even if that's actually harmless since we don't use them again afterwards. While at it, check that the SKB on the list is still the same, as that's required here. If not, the encryption (protection) code is buggy. Fixes: 0a3a84360b37 ("mac80211: Beacon protection using the new BIGTK (AP)") Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://lore.kernel.org/r/20200320102021.1be7823fc05e.Ia89fb79a0469d32137c9a04315a1d2dfc7b7d6f5@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20mac80211: update documentation about tx powerQiujun Huang
The structure member added at some point, but the kernel-doc was not updated. Signed-off-by: Qiujun Huang <hqjagain@gmail.com> Link: https://lore.kernel.org/r/20200312144424.3023-1-hqjagain@gmail.com Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20mac80211: handle no-preauth flag for control portMarkus Theil
This patch adds support for disabling pre-auth rx over the nl80211 control port for mac80211. Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de> Link: https://lore.kernel.org/r/20200312091055.54257-3-markus.theil@tu-ilmenau.de [fix indentation slightly, squash feature enablement] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20nl80211: add no pre-auth attribute and ext. feature flag for ctrl. portMarkus Theil
If the nl80211 control port is used before this patch, pre-auth frames (0x88c7) are send to userspace uncoditionally. While this enables userspace to only use nl80211 on the station side, it is not always useful for APs. Furthermore, pre-auth frames are ordinary data frames and not related to the control port. Therefore it should for example be possible for pre-auth frames to be bridged onto a wired network on AP side without touching userspace. For backwards compatibility to code already using pre-auth over nl80211, this patch adds a feature flag to disable this behavior, while it remains enabled by default. An additional ext. feature flag is added to detect this from userspace. Thanks to Jouni for pointing out, that pre-auth frames should be handled as ordinary data frames. Signed-off-by: Markus Theil <markus.theil@tu-ilmenau.de> Link: https://lore.kernel.org/r/20200312091055.54257-2-markus.theil@tu-ilmenau.de Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20mac80211_hwsim: add frame transmission support over virtioErel Geron
This allows communication with external entities. It also required fixing up the netlink policy, since NLA_UNSPEC attributes are no longer accepted. Signed-off-by: Erel Geron <erelx.geron@intel.com> [port to backports, inline the ID, use 29 as the ID as requested, drop != NULL checks, reduce ifdefs] Link: https://lore.kernel.org/r/20200305143212.c6e4c87d225b.I7ce60bf143e863dcdf0fb8040aab7168ba549b99@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20cfg80211: fix documentation formatJohannes Berg
Kernel-doc complains if the line isn't prefixed with an asterisk, fix that. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Johannes Berg <johannes.berg@intel.com> Link: https://lore.kernel.org/r/20200320144110.2786ad5fb234.I369d103d11c71e39e3a3f97ed68a528c5b875f1e@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2020-03-20platform/x86: intel_pmc_core: Make pmc_core_substate_res_show() genericGayatri Kammela
Currently pmc_core_substate_res_show() uses array of char pointers i.e., lpm_modes for Tiger Lake directly to iterate through and to get the number of low power modes which is hardcoded and cannot be re-used for future platforms that support sub-states. To maintain readability, make pmc_core_substate_res_show() generic, so that it can re-used for future platforms. Cc: Chen Zhou <chenzhou10@huawei.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: David E. Box <david.e.box@intel.com> Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20spi: atmel-quadspi: Add verbose debug facilities to monitor register accessesTudor Ambarus
This feature should not be enabled in release but can be useful for developers who need to monitor register accesses at some specific places. Helped me identify a bug in u-boot, by comparing the register accesses from the linux driver with the ones from its u-boot variant. Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com> Link: https://lore.kernel.org/r/20200320065058.891221-1-tudor.ambarus@microchip.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-03-20platform/x86: intel_pmc_core: Make pmc_core_lpm_display() generic for ↵Gayatri Kammela
platforms that support sub-states Currently pmc_core_lpm_display() uses an array of the struct pointers, i.e. tgl_lpm_maps for Tiger Lake directly to iterate through and to get the number of (live) status registers which is hard coded and can not be re-used for the future platforms that support sub-states. To maintain readability, make pmc_core_lpm_display() generic, so that it can be re-used for future platforms. Cc: Chen Zhou <chenzhou10@huawei.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: David E. Box <david.e.box@intel.com> Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Fix a typo in error messageMasanari Iida
This patch fix a spelling typo in error message. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Update versionSrinivas Pandruvada
Fair number of changes including bug fixes done to change version. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Avoid duplicate Package strings for jsonSrinivas Pandruvada
For platforms where multiple packages/die, this makes "Package-" key duplicate. To make unique, add die and cpu id to key name. So "Package-0" key name will change to "Package-0-die-x:cpu-x". For example: $sudo ./intel-speed-select -f json perf-profile info Intel(R) Speed Select Technology Executing on CPU model:106[0x6a] { "package-0:die-0:cpu-0": { "perf-profile-level-0": { "cpu-count": "32", "enable-cpu-count": "32", ... ... "package-1:die-0:cpu-16": { "perf-profile-level-0": { "cpu-count": "32", "enable-cpu-count": "32", "enable-cpu-mask": "ffff0000,ffff0000", ... ... For non json format, there is no change. Here when print_package_info() is called, it will return the level to print for other information. This level is used formatting. Also in some function duplicate code was there to print package,die and CPU information. Replace all that code with a call to print_package_info(). Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Add display for enabled cpus countSrinivas Pandruvada
In addition to total CPU count also display "enabled-cpu-count" for perf-profile info command. This will show number of CPUs in the "enable-cpu-mask". For example: perf-profile-level-4 cpu-count:32 enable-cpu-count:16 enable-cpu-mask:e42d0000,e42d0000 Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Print friendly warning for bad command lineSrinivas Pandruvada
When user specifies invalid option, display "Unknown Option: ignore", instead of "no match". Also display error for garbage on the command line. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Fix avx options for turbo-freq featureSrinivas Pandruvada
Specifying "avx2" and "avx512" option for display filter doesn't work with short option "-r", only works with --try-type. Also compare full 6 characters for "avx512" string. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Improve CLX commandsSrinivas Pandruvada
CLX doesn't have capability to change the feature in the hardware, but this acts as "--auto | -a" option. So even if user didn't specify the option, use this as --auto | -a to set cpufreq scaling frequency limits. Also remove perror with debug_printf as they don't bring any value. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Show error for invalid CPUs in the optionsSrinivas Pandruvada
When --cpu or -c is used to specify target CPUs and non of them are valid, display error. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Improve core-power result and error displaySrinivas Pandruvada
This change adds improved error display and handling for commands related to core-power feature. The changes include: - Replace perror with helpful error message - Use ordered priority for SKX based platform by default as the proportional priority is not supported - Don't show weight and epp in help and also give error when user tries to set them in SKX based platforms - Range check for epp and weights and display error Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Kernel interface error handlingSrinivas Pandruvada
Treat a case when mailbox/mmio command can't be handled by the kernel drivers when the module is removed or send a command which no driver can handle. In this case ENOTTY result is returned, so print error. Also when the isst_if_mmio module is removed, we can't send CLOS message messages via Mailbox on non SKX based platforms. When this module is removed, isst_platform_info.mmio_supported is set to 0. So it can't be used as a condition to send via mailbox. Here replace check for Skylake based platform to send via mailbox, other platforms can't use mailbox in lieu of MMIO. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Improve error display for turbo-freq featureSrinivas Pandruvada
This change adds improved error display and handling for commands related to turbo-freq feature. The changes include: - Replace perror/fprintf with helpful error message - Error for not specifying TDP level when required - Show error for invalid bucket number - Show message to enable core-power before enabling turbo-freq feature Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Improve error display for base-freq featureSrinivas Pandruvada
This change adds improved error display and handling for commands related to base-freq feature. The changes include: - Replace perror/fprintf with helpful error message - Error for not specifying TDP level when required - For CLX show help which shows limitation Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Improve output of perf-profile commandsSrinivas Pandruvada
Improve output of perf-profile commands: get-config-enabled get-lock-status Instead of showing 0/1, show meaningful strings. Also show error when command is failed. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Enhance help for core-power assocSrinivas Pandruvada
Enhance help to specify CPU and clos by an example. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Display error for invalid priority typeSrinivas Pandruvada
When priority type for core-power enable command is anything more than 1 display error before change to 1, which is ordered priority. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Check feature status firstSrinivas Pandruvada
Before looking for information about the base-freq or turbo-freq details, first check if the feature is supported at that level. If not print error and return. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Improve error display for perf-profile ↵Srinivas Pandruvada
feature This change adds improved error display and handling for commands related to perf-profile feature. The changes include: - When invalid TDP level is passed. display error and exit - Replace perror with helpful error message - Show error when TDP level can't be set - Print error when information can't be read for a level - Validate user options for invalid level - Display error for TDP lock status Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Add an API for error/information printSrinivas Pandruvada
Add a common API which can be used to print all error and information messages. In this way a common format can be used. For json output an error index in suffixed to make unique error key. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Enhance --info optionSrinivas Pandruvada
Add additional information, which will allow user to detect available features. This will allow users to check presence of features before continue to test. A sample output: $sudo ./intel-speed-select --info Intel(R) Speed Select Technology Executing on CPU model:85[0x55] Platform: API version : 1 Platform: Driver version : 1 Platform: mbox supported : 1 Platform: mmio supported : 0 Intel(R) SST-PP (feature perf-profile) is not supported Only performance level 0 (base level) is present TDP level change control is locked Intel(R) SST-TF (feature turbo-freq) is supported Intel(R) SST-BF (feature base-freq) is supported Intel(R) SST-CP (feature core-power) is supported Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Enhance helpSrinivas Pandruvada
Enhance help message which adds some example. The changes include: - Print help when options are not recognized. - For CLX, display only options which are applicable. - Sort options in alphatical order. - Disply help() instead of error: "Feature name and|or command not specified" - Remove duplicate display of Intel(R) Speed Select Technology Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Helpful warning for missing kernel interfaceSrinivas Pandruvada
When the device file "/dev/isst_interface" is not present, instead of failing on access, check at the start and print a helpful warning. Here CLX platform is an exception, which doesn't depend on the device file. So continue for CLX platform. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Store topology informationSrinivas Pandruvada
Once the CPU is offline, the topology information (core-id, package-id, die-id) is not accessible via sysfs. So when user selects a config level more than base config 0 and offlined CPUs to match the config level, to return to base config he has to manually online CPUs before. Without this CPUs information mapping from Punit CPU numbering will lot work as it needs atlest package id for each CPU. To avoid this additional steps store the topology information in a file , which is created on the very first run after boot. Since system boots in base config and all CPUs are online, we can get information about every CPU. Once any of the APIs like get_physical_package_id(), get_physical_core_id() or get_physical_die_id() fails to read from sysfs, read from the stored mapping file. This mapping file is stored in /tmp file system. so on every boot it is recreated to make sure that any new CPUs are added to the system before boot are taken into account. But don't use the stored physical device id when trying to get information for CPU to send message in for_each_online_package_in_set(). Here use the real value from syfs and in case fails try the next CPU. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Max CPU count calculation when CPU0 is ↵Srinivas Pandruvada
offline Currently /sys/devices/system/cpu/cpu0/topology/thread_siblings is used to get the max CPU count. But when CPU0 is offline, then this file will be absent. So add processing so that we can get count from any first CPU in the system. which is online. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Special handling for CPU 0 online/offlineSrinivas Pandruvada
When "-o" option for force online/offline is used with command: perf-profile set-config-level If the config level calls for CPU 0 online/offline, then call fails as there is special kernel setup required for CPU 0 online/offline and the currently not setup for that. But when call is for online CPU 0, then don't fail. Just warn that this system is not setup for CPU 0 online/offline. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Use more verbiage for clos informationSrinivas Pandruvada
Instead of displaying 0 and 1 for enable status, display "disabled" and "enabled" respectively. Similarly for priority type, display "ordered or proportional" instead of 0 and 1. An example display: $intel-speed-select -c 1 core-power info Intel(R) Speed Select Technology .. package-0 die-0 cpu-1 core-power support-status:supported enable-status:enabled clos-enable-status:enabled priority-type:proportional Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Enhance core-power info commandSrinivas Pandruvada
In addition to CLOS enable status, also show the core-power feature status. This will help why clos enable status didn't give desired results as the core-power feature may be disabled or unsupported. The new display looks as follows: $intel-speed-select core-power info Intel(R) Speed Select Technology .. package-0 die-0 cpu-0 core-power support-status:supported enable-status:enabled clos-enable-status:1 priority-type:0 In the above display "support-status" and "enable-status", shows the status of the core-power feature and "clos-enable-status", shows the status of the clos. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Make target CPU optional for core-power infoSrinivas Pandruvada
Currently "-c" is a mandatory option for "core-power info" command. Make this optional as this is a per package/die property. When not specified, it will print info for every package/die. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Warn for invalid package idSrinivas Pandruvada
When CPU is offline, we can't get package id. So print error for this and don't use output. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2020-03-20tools/power/x86/intel-speed-select: Fix last cpu numberSrinivas Pandruvada
Here topology_max_cpus is used for total CPU count, not the last CPU number. So remove "-1". Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
generated by cgit (git 2.34.1) at 2025-09-25 14:45:09 +0000