Changes in Makefile

f220df66 - intel_th: msu-sink: An example msu buffer "sink"

Fri, 05 Jul 2019 14:14:22 +0000

intel_th: msu-sink: An example msu buffer "sink"This patch adds an example MSU buffer "sink", which consumes tracedata from MSC buffers.Functionally, it acts similarly to "multi" mode with automatic windowswitching.Signed-off-by: Alexander Shishkin Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20190705141425.19894-3-alexander.shishkin@linux.intel.comSigned-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/hwtracing/intel_th/Makefile

ebc57e39 - intel_th: Add ACPI glue layer

Wed, 23 Aug 2017 06:59:55 +0000

intel_th: Add ACPI glue layerThe Trace Hub devices now can be enumerated as ACPI devices, whichtranslates into "Host Debugger mode". There are two IDs: one forPCH Trace Hub, and one for the uncore Trace Hub. These are expectedto stay the same across all platforms.Signed-off-by: Alexander Shishkin List of files: /linux-6.15/drivers/hwtracing/intel_th/Makefile

b2441318 - License cleanup: add SPDX GPL-2.0 license identifier to files with no license

Wed, 01 Nov 2017 14:07:57 +0000

License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseMany source files in the tree are missing licensing information, whichmakes it harder for compliance tools to determine the correct license.By default all files without license information are under the defaultlicense of the kernel, which is GPL version 2.Update the files which contain no license information with the 'GPL-2.0'SPDX license identifier. The SPDX identifier is a legally bindingshorthand, which can be used instead of the full boiler plate text.This patch is based on work done by Thomas Gleixner and Kate Stewart andPhilippe Ombredanne.How this work was done:Patches were generated and checked against linux-4.14-rc6 for a subset ofthe use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information,Further patches will be generated in subsequent months to fix up caseswhere non-standard license headers were used, and references to licensehad to be inferred by heuristics based on keywords.The analysis to determine which SPDX License Identifier to be applied toa file was done in a spreadsheet of side by side results from of theoutput of two independent scanners (ScanCode & Windriver) producing SPDXtag:value files created by Philippe Ombredanne. Philippe prepared thebase worksheet, and did an initial spot review of a few 1000 files.The 4.13 kernel was the starting point of the analysis with 60,537 filesassessed. Kate Stewart did a file by file comparison of the scannerresults in the spreadsheet to determine which SPDX license identifier(s)to be applied to the file. She confirmed any determination that was notimmediately clear with lawyers working with the Linux Foundation.Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines).All documentation files were explicitly excluded.The following heuristics were used to determine which SPDX licenseidentifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time.In total, over 70 hours of logged manual review was done on thespreadsheet to determine the SPDX license identifiers to apply to thesource files by Kate, Philippe, Thomas and, in some cases, confirmationby lawyers working with the Linux Foundation.Kate also obtained a third independent scan of the 4.13 code base fromFOSSology, and compared selected files where the other two scannersdisagreed against that SPDX file, to see if there was new insights. TheWindriver scanner is based on an older version of FOSSology in part, sothey are related.Thomas did random spot checks in about 500 files from the spreadsheetsfor the uapi headers and agreed with SPDX license identifier in thefiles he inspected. For the non-uapi files Thomas did random spot checksin about 15000 files.In initial set of patches against 4.14-rc6, 3 files were found to havecopy/paste license identifier errors, and have been fixed to reflect thecorrect identifier.Additionally Philippe spent 10 hours this week doing a detailed manualinspection and review of the 12,461 patched files from the initial patchversion early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correctThis produced a worksheet with 20 files needing minor correction. Thisworksheet was then exported into 3 different .csv files for thedifferent types of files to be modified.These .csv files were then reviewed by Greg. Thomas wrote a script toparse the csv files and add the proper SPDX tag to the file, in theformat that the file expected. This script was further refined by Gregbased on the output to detect more types of files automatically and todistinguish between header and source .c files (which need differentcomment types.) Finally Greg ran the script using the .csv files togenerate the patches.Reviewed-by: Kate Stewart Reviewed-by: Philippe Ombredanne Reviewed-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/hwtracing/intel_th/Makefile

14cdbf04 - intel_th: Add PTI output driver

Tue, 22 Sep 2015 12:47:19 +0000

intel_th: Add PTI output driverParallel Trace Interface (PTI) unit is a trace output device that sendsdata over a PTI port.The driver provides interfaces to configure bus width, bus clock dividerand mode. Tracing is enabled via output device's "active" attribute.Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/hwtracing/intel_th/Makefile

ba82664c - intel_th: Add Memory Storage Unit driver

Tue, 22 Sep 2015 12:47:18 +0000

intel_th: Add Memory Storage Unit driverMemory Storage Unit (MSU) is a trace output device that collects tracedata to system memory. It consists of 2 independent Memory StorageControllers (MSCs).This driver provides userspace interfaces to configure in-memory tracingparameters, such as contiguous (high-order allocation) buffer or multiblock(scatter list) buffer mode, wrapping (data overwrite) and number and sizesof windows in multiblock mode. Userspace can read the buffers via mmap()ingor read()ing of the corresponding device node.Signed-off-by: Laurent Fert Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/hwtracing/intel_th/Makefile

f04e449f - intel_th: Add Software Trace Hub driver

Tue, 22 Sep 2015 12:47:17 +0000

intel_th: Add Software Trace Hub driverSoftware Trace Hub (STH) is a trace source device in the Intel THarchitecture, it generates data that then goes through the switch intoone or several output ports.STH collects data from software sources using the stm device classabstraction.Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/hwtracing/intel_th/Makefile

b27a6a3f - intel_th: Add Global Trace Hub driver

Tue, 22 Sep 2015 12:47:16 +0000

intel_th: Add Global Trace Hub driverGlobal Trace Hub (GTH) is the central component of Intel TH architecture;it carries out switching between the trace sources and trace outputs, canenable/disable tracing, perform STP encoding, internal buffering, controlbackpressure from outputs to sources and so on.This property is also reflected in the software model; GTH (switch) driveris required for the other subdevices to probe, because it matches traceoutput devices against its output ports and configures them accordingly.It also implements an interface for output ports to request trace enablingor disabling and a few other useful things.For userspace, it provides an attribute group "masters", which allowsconfiguration of per-master trace output destinations for up to master 255and "256+" meaning "masters 256 and above". It also provides an attributegroup to discover and configure some of the parameters of its output ports,called "outputs". Via these the user can set up data retention policy foran individual output port or check if it is in reset state.Signed-off-by: Laurent Fert Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/hwtracing/intel_th/Makefile

2b0b16d3 - intel_th: Add pci glue layer for Intel(R) Trace Hub

Tue, 22 Sep 2015 12:47:15 +0000

intel_th: Add pci glue layer for Intel(R) Trace HubThis patch adds basic support for PCI-based Intel TH devices. It requests2 bars (configuration registers for the subdevices and STH channel MMIOregion) and calls into Intel TH core code to create the bus with subdevicesetc.Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/hwtracing/intel_th/Makefile

39f40346 - intel_th: Add driver infrastructure for Intel(R) Trace Hub devices

Tue, 22 Sep 2015 12:47:14 +0000

intel_th: Add driver infrastructure for Intel(R) Trace Hub devicesIntel(R) Trace Hub (TH) is a set of hardware blocks (subdevices) thatproduce, switch and output trace data from multiple hardware andsoftware sources over several types of trace output ports encodedin System Trace Protocol (MIPI STPv2) and is intended to performfull system debugging.For these subdevices, we create a bus, where they can be discoveredand configured by userspace software.This patch creates this bus infrastructure, three types of devices(source, output, switch), resource allocation, some callback mechanismsto facilitate communication between the subdevices' drivers and somecommon sysfs attributes.Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/drivers/hwtracing/intel_th/Makefile