Changes in Makefile

11923e0d - powerpc/cell: Remove CBE_CPUFREQ_SPU_GOVERNOR

Wed, 18 Dec 2024 10:54:53 +0000

powerpc/cell: Remove CBE_CPUFREQ_SPU_GOVERNORAlthough this driver is still buildable, it can't actually do anythingin practice now that the low-level cpufreq driver for Cell has beendisabled due to the removal of CBE_RAS.Signed-off-by: Michael Ellerman Signed-off-by: Madhavan Srinivasan Link: https://patch.msgid.link/20241218105523.416573-5-mpe@ellerman.id.au List of files: /linux-6.15/arch/powerpc/platforms/cell/Makefile

05bf59fb - powerpc/cell: Remove support for IBM Cell Blades

Wed, 18 Dec 2024 10:54:49 +0000

powerpc/cell: Remove support for IBM Cell BladesIBM Cell Blades used the Cell processor and the "blade" server formfactor. They were sold as models QS20, QS21 & QS22 from roughly 2006 to2012 [1]. They were used in a few supercomputers (eg. Roadrunner) thathave since been dismantled, and were not that widely used otherwise.Until recently I still had a working QS22, which meant I was able tokeep the platform support working, but unfortunately that machine hasnow died.I'm not aware of any users. If there is a user that wants to keep theupstream support working, we can look at bringing some of the code backas appropriate.See previous discussion at [2].Remove the top-level config symbol PPC_IBM_CELL_BLADE, and thenthe dependent symbols PPC_CELL_NATIVE, PPC_CELL_COMMON, CBE_RAS,PPC_IBM_CELL_RESETBUTTON, PPC_IBM_CELL_POWERBUTTON, CBE_THERM, andAXON_MSI. Then remove the associated C files and headers, and trimunused header content (some is shared with PS3).Note that PPC_CELL_COMMON sounds like it would build code shared withPS3, but it does not. It's a relic from when code was shared between theBlade support and QPACE support.Most of the primary authors already have CREDITS entries, with theexception of Christian, so add one for him.[1]: https://www.theregister.com/2011/06/28/ibm_kills_qs22_blade[2]: https://lore.kernel.org/linuxppc-dev/60581044-df82-40ad-b94c-56468007a93e@app.fastmail.comAcked-by: Arnd Bergmann Acked-by: Jeremy Kerr Acked-by: Segher Boessenkool Signed-off-by: Michael Ellerman Signed-off-by: Madhavan Srinivasan Link: https://patch.msgid.link/20241218105523.416573-1-mpe@ellerman.id.au List of files: /linux-6.15/arch/powerpc/platforms/cell/Makefile

7a3c90df - arch: powerpc: Stop building and using oprofile

Thu, 14 Jan 2021 11:35:23 +0000

arch: powerpc: Stop building and using oprofileThe "oprofile" user-space tools don't use the kernel OPROFILE supportany more, and haven't in a long time. User-space has been converted tothe perf interfaces.This commits stops building oprofile for powerpc and removes anyreference to it from directories in arch/powerpc/ apart fromarch/powerpc/oprofile, which will be removed in the next commit (this isbroken into two commits as the size of the commit became very big, ~5klines).Note that the member "oprofile_cpu_type" in "struct cpu_spec" isn'tremoved as it was also used by other parts of the code.Suggested-by: Christoph Hellwig Suggested-by: Linus Torvalds Signed-off-by: Viresh Kumar Acked-by: Robert Richter Acked-by: William Cohen Acked-by: Al Viro Acked-by: Thomas Gleixner List of files: /linux-6.15/arch/powerpc/platforms/cell/Makefile

badf436f - powerpc/Makefiles: Convert ifeq to ifdef where possible

Mon, 06 Aug 2018 16:42:03 +0000

powerpc/Makefiles: Convert ifeq to ifdef where possibleIn Makefiles if we're testing a CONFIG_FOO symbol for equality with 'y'we can instead just use ifdef. The latter reads easily, so convert toit where possible.Signed-off-by: Rodrigo R. Galvao Reviewed-by: Mauro S. M. Rodrigues Signed-off-by: Michael Ellerman List of files: /linux-6.15/arch/powerpc/platforms/cell/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/arch/powerpc/platforms/cell/Makefile

24ad1648 - powerpc/cell: Remove the Cell QPACE code

Tue, 01 Dec 2015 03:51:38 +0000

powerpc/cell: Remove the Cell QPACE codeAll users of QPACE have upgraded to QPACE2 so remove the Cell QPACE code.Signed-off-by: Rashmica Gupta Acked-by: Arnd Bergmann Signed-off-by: Michael Ellerman List of files: /linux-6.15/arch/powerpc/platforms/cell/Makefile

bf4981a0 - powerpc: Remove the celleb support

Thu, 19 Mar 2015 04:15:20 +0000

powerpc: Remove the celleb supportThe celleb code has seen no actual development for ~7 years.We (maintainers) have no access to test hardware, and it is highlylikely the code has bit-rotted.As far as we're aware the hardware was never widely available, and iscertainly no longer available, and no one on the list has shown anyinterest in it over the years.So remove it. If anyone has one and cares please speak up.Signed-off-by: Michael Ellerman Acked-by: Benjamin Herrenschmidt Acked-by: Jeremy Kerr List of files: /linux-6.15/arch/powerpc/platforms/cell/Makefile

e83d0169 - powerpc/cell: Move spu_handle_mm_fault() out of cell platform

Wed, 08 Oct 2014 08:54:50 +0000

powerpc/cell: Move spu_handle_mm_fault() out of cell platformCurrently spu_handle_mm_fault() is in the cell platform.This code is generically useful for other non-cell co-processors on powerpc.This patch moves this function out of the cell platform into arch/powerpc/mm sothat others may use it.Signed-off-by: Ian Munsie Signed-off-by: Michael Neuling Signed-off-by: Michael Ellerman List of files: /linux-6.15/arch/powerpc/platforms/cell/Makefile

6eb1c377 - cpufreq: powerpc/platforms/cell: move cpufreq driver to drivers/cpufreq

Mon, 25 Mar 2013 05:50:23 +0000

cpufreq: powerpc/platforms/cell: move cpufreq driver to drivers/cpufreqThis patch moves cpufreq driver of powerpc platforms/cell to drivers/cpufreq.Signed-off-by: Viresh Kumar Acked-by: Arnd Bergmann Signed-off-by: Rafael J. Wysocki List of files: /linux-6.15/arch/powerpc/platforms/cell/Makefile

d4fc8fe1 - powerpc: Remove stubbed beat smp support

Tue, 10 May 2011 19:29:28 +0000

powerpc: Remove stubbed beat smp supportI have no idea if the beat hypervisor supports multiple cpus ina partition, but the code has not been touched since these stubswere added in February of 2007 except to move them in April of 2008.These are stubs: start_cpu always returns fail (which is dropped),the message passing and reciving are empty functions, and the topof file comment says "Incomplete".Signed-off-by: Milton Miller Signed-off-by: Benjamin Herrenschmidt List of files: /linux-6.15/arch/powerpc/platforms/cell/Makefile

3cc30d07 - powerpc/pci: Move IO workarounds to the common kernel dir

Mon, 11 Apr 2011 21:25:01 +0000

powerpc/pci: Move IO workarounds to the common kernel dirSigned-off-by: Benjamin Herrenschmidt Signed-off-by: Michael Ellerman Signed-off-by: Benjamin Herrenschmidt List of files: /linux-6.15/arch/powerpc/platforms/cell/Makefile

47c3c6ef - powerpc/cell: Fix Axon MSI driver dependencies

Thu, 05 Mar 2009 17:37:11 +0000

powerpc/cell: Fix Axon MSI driver dependenciesThe Axon MSI driver depends on more than just PCI_MSI, so add aKconfig fragment for it. Fixes randconfig build failures.Signed-off-by: Michael Ellerman Signed-off-by: Benjamin Herrenschmidt List of files: /linux-6.15/arch/powerpc/platforms/cell/Makefile

def434c2 - powerpc/cell: add QPACE as a separate Cell platform

Thu, 27 Nov 2008 15:15:44 +0000

powerpc/cell: add QPACE as a separate Cell platformSince the QPACE (Chromodynamics Parallel Computing on theCell Broadband Engine) platform doesn't use a iommu, doesn'thave PCI devices and a MPIC much lesser setup andconfigurations are needed. So far all devices are detectedas OF device. A notifier function is used to set the dma_opsfor the of_platform bus. Further this patch splits thePPC_CELL_NATIVE into PPC_CELL_COMMON which are parts that areshared with the QPACE platform and the rest.Signed-off-by: Benjamin Krill Signed-off-by: Arnd Bergmann List of files: /linux-6.15/arch/powerpc/platforms/cell/Makefile

4795b780 - powerpc/cell: Add support for power button of future IBM cell blades

Tue, 15 Jul 2008 19:51:45 +0000

powerpc/cell: Add support for power button of future IBM cell bladesThis patch adds support for the power button on future IBM cell blades.It actually doesn't shut down the machine. Instead it exposes aninput device /dev/input/event0 to userspace which sends KEY_POWERif power button has been pressed.haldaemon actually recognizes the button, so a plattform independent acpidreplacement should handle it correctly.Signed-off-by: Christian Krafft Signed-off-by: Arnd Bergmann Signed-off-by: Benjamin Herrenschmidt List of files: /linux-6.15/arch/powerpc/platforms/cell/Makefile

880e7105 - powerpc/cell/cpufreq: Add spu aware cpufreq governor

Tue, 15 Jul 2008 19:51:43 +0000

powerpc/cell/cpufreq: Add spu aware cpufreq governorThis patch adds a cpufreq governor that takes the number of running spusinto account. It's very similar to the ondemand governor, but not as complex.Instead of hacking spu load into the ondemand governor it might be easier tohave cpufreq accepting multiple governors per cpu in future.Don't know if this is the right way, but it would keep the governors simple.Signed-off-by: Christian Krafft Signed-off-by: Arnd Bergmann Acked-by: Dave Jones Signed-off-by: Benjamin Herrenschmidt List of files: /linux-6.15/arch/powerpc/platforms/cell/Makefile

884d04cd - [POWERPC] celleb: Add support for PCI Express

Thu, 24 Apr 2008 10:27:39 +0000

[POWERPC] celleb: Add support for PCI ExpressThis adds support for PCI Express port on Celleb. I/O space of thisPCI Express port is not mapped in memory space. So we use theio-workaround mechanism to make accesses indirect.Signed-off-by: Kou Ishizaki Acked-by: Arnd Bergmann Signed-off-by: Paul Mackerras List of files: /linux-6.15/arch/powerpc/platforms/cell/Makefile

ad2c6987 - [POWERPC] celleb: Move miscellaneous files for Beat

Thu, 24 Apr 2008 09:31:40 +0000

[POWERPC] celleb: Move miscellaneous files for BeatThis moves miscellaneous files for Beat into platforms/cell/.All files in this patch are used by celleb-beat only.Signed-off-by: Kou Ishizaki Acked-by: Arnd Bergmann Acked-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras List of files: /linux-6.15/arch/powerpc/platforms/cell/Makefile

c11dde85 - [POWERPC] celleb: Move a file for SPU on Beat

Thu, 24 Apr 2008 09:29:50 +0000

[POWERPC] celleb: Move a file for SPU on BeatThis moves SPU support code on Beat into platforms/cell/.Signed-off-by: Kou Ishizaki Acked-by: Arnd Bergmann Acked-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras List of files: /linux-6.15/arch/powerpc/platforms/cell/Makefile

8ae6e30d - [POWERPC] celleb: Move files for Beat mmu and iommu

Thu, 24 Apr 2008 09:28:48 +0000

[POWERPC] celleb: Move files for Beat mmu and iommuThis moves files for mmu and iommu on Beat into platforms/cell/.All files in this patch are used by celleb-beat only.Signed-off-by: Kou Ishizaki Acked-by: Arnd Bergmann Acked-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras List of files: /linux-6.15/arch/powerpc/platforms/cell/Makefile

5a96dfe8 - [POWERPC] celleb: Move files for Beat hvcall interfaces

Thu, 24 Apr 2008 09:27:32 +0000

[POWERPC] celleb: Move files for Beat hvcall interfacesThis moves files for Beat hvcall interfaces into platforms/cell/.All files in this patch are used by celleb-beat only.Signed-off-by: Kou Ishizaki Acked-by: Arnd Bergmann Acked-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras List of files: /linux-6.15/arch/powerpc/platforms/cell/Makefile