Changes in Makefile

289c270e - mips/crc32: expose CRC32 functions through lib

Mon, 02 Dec 2024 01:08:32 +0000

mips/crc32: expose CRC32 functions through libMove the mips CRC32 assembly code into the lib directory and wire it upto the library interface. This allows it to be used without goingthrough the crypto API. It remains usable via the crypto API too viathe shash algorithms that use the library interface. Thus all thearch-specific "shash" code becomes unnecessary and is removed.Note: to see the diff from arch/mips/crypto/crc32-mips.c toarch/mips/lib/crc32-mips.c, view this commit with 'git show -M10'.Reviewed-by: Ard Biesheuvel Link: https://lore.kernel.org/r/20241202010844.144356-8-ebiggers@kernel.orgSigned-off-by: Eric Biggers List of files: /linux-6.15/arch/mips/lib/Makefile

455481fc - MIPS: Remove TX39XX support

Tue, 22 Feb 2022 09:04:28 +0000

MIPS: Remove TX39XX supportNo (active) developer owns this hardware, so let's remove Linux support.Signed-off-by: Thomas Bogendoerfer Acked-by: Guenter Roeck Reviewed-by: Geert Uytterhoeven Tested-by: Geert Uytterhoeven Acked-by: Atsushi Nemoto List of files: /linux-6.15/arch/mips/lib/Makefile

b962aeb0 - MIPS: Use GENERIC_IOMAP

Wed, 29 Aug 2018 21:54:00 +0000

MIPS: Use GENERIC_IOMAPMIPS has a copy of lib/iomap.c with minor alterations, none of which arenecessary given appropriate definitions of PIO_OFFSET, PIO_MASK &PIO_RESERVED. Provide such definitions, select GENERIC_IOMAP & removearch/mips/lib/iomap.c to cut back on the needless duplication.The one change this does make is to our mmio_{in,out}s[bwl] functions,which began to deviate from their generic counterparts with commit0845bb721ebb ("MIPS: iomap: Use __mem_{read,write}{b,w,l} for MMIO"). Isuspect that this commit was incorrect, and that the SEAD-3 platformshould have instead selected CONFIG_SWAP_IO_SPACE. Since the SEAD-3platform code is now gone & the board is instead supported by thegeneric platform (CONFIG_MIPS_GENERIC) which selectsCONFIG_SWAP_IO_SPACE anyway, this shouldn't be a problem any more.Signed-off-by: Paul Burton Patchwork: https://patchwork.linux-mips.org/patch/20342/Cc: linux-mips@linux-mips.org List of files: /linux-6.15/arch/mips/lib/Makefile

740129b3 - MIPS: Use generic GCC library routines from lib/

Wed, 11 Apr 2018 07:50:19 +0000

MIPS: Use generic GCC library routines from lib/The commit b35cd9884fa5 ("lib: Add shared copies of some GCC libraryroutines") makes it possible to share generic GCC library routines byseveral architectures.This commit removes several generic GCC library routines fromarch/mips/lib/ in favour of similar routines from lib/.Signed-off-by: Antony Pavlov [Matt Redfearn] Use GENERIC_LIB_* named Kconfig entriesSigned-off-by: Matt Redfearn Cc: Palmer Dabbelt Cc: Ralf Baechle Cc: linux-mips@linux-mips.orgPatchwork: https://patchwork.linux-mips.org/patch/19051/Signed-off-by: James Hogan List of files: /linux-6.15/arch/mips/lib/Makefile

ebabcf17 - MIPS: Implement __multi3 for GCC7 MIPS64r6 builds

Thu, 07 Dec 2017 07:20:46 +0000

MIPS: Implement __multi3 for GCC7 MIPS64r6 buildsGCC7 is a bit too eager to generate suboptimal __multi3 calls (128bitmultiply with 128bit result) for MIPS64r6 builds, even in code whichdoesn't explicitly use 128bit types, such as the following:unsigned long func(unsigned long a, unsigned long b){ return a > (~0UL) / b;}Which GCC rearanges to:return (unsigned __int128)a * (unsigned __int128)b > 0xffffffffffffffff;Therefore implement __multi3, but only for MIPS64r6 with GCC7 as undernormal circumstances we wouldn't expect any calls to __multi3 to begenerated from kernel code.Reported-by: Thomas Petazzoni Signed-off-by: James Hogan Tested-by: Waldemar Brodkorb Cc: Ralf Baechle Cc: Maciej W. Rozycki Cc: Matthew Fortune Cc: Florian Fainelli Cc: linux-mips@linux-mips.orgPatchwork: https://patchwork.linux-mips.org/patch/17890/ List of files: /linux-6.15/arch/mips/lib/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/mips/lib/Makefile

d8c825e2 - MIPS: Add __ioread64_copy

Sun, 13 Aug 2017 04:36:15 +0000

MIPS: Add __ioread64_copyWe currently have __ioread32_copy, __iowrite32_copy & __iowrite64_copyhelpers in lib/iomap_copy.c. This patch adds __ioread64_copy to roundout the set, allowing copies from I/O memory using 32 or 64 bit reads.[ralf@linux-mips.org: Changed to move all the code of this patch to beapplied to arch/mips temporarily.]Signed-off-by: Paul Burton Cc: Jason Cooper Cc: Marc Zyngier Cc: Thomas Gleixner Cc: linux-mips@linux-mips.orgPatchwork: https://patchwork.linux-mips.org/patch/17025/Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/lib/Makefile

82985258 - kill strlen_user()

Fri, 07 Apr 2017 21:20:01 +0000

kill strlen_user()no callers, no consistent semantics, no sane way to use it...Signed-off-by: Al Viro List of files: /linux-6.15/arch/mips/lib/Makefile

1ee3630a - MIPS: Use ARCH_USE_BUILTIN_BSWAP.

Tue, 29 Sep 2015 10:19:48 +0000

MIPS: Use ARCH_USE_BUILTIN_BSWAP.ARCH_USE_BUILTIN_BSWAP will use __builtin_bswap16(), __builtin_bswap32()and __builtin_bswap64() where available. This allows better instructionscheduling. On pre-R2 processors it will result in 32 bit and 64 bitswapping being performed in a call to a __bswapsi2() rsp. __bswapdi2()functions, so we add these, too.For a 4.2 kernel with GCC 4.9 this yields the following kernel sizes: text data bss dec hex filename3996071 155804 88992 4240867 40b5e3 vmlinux ip22 baseline3985687 159900 88992 4234579 409d53 vmlinux ip22 + bswap patch6913157 378552 251024 7542733 7317cd vmlinux ip27 baseline6878581 378552 251024 7508157 7290bd vmlinux ip27 + bswap patch5773777 268752 187424 6229953 5f0fc1 vmlinux malta baseline5773401 268752 187424 6229577 5f0e49 vmlinux malta + bswap patchPresumably the code size improvments yield better cache hit rate thusbetter performance compensating for the extra function call but thiswill still need to be benchmarked.Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/lib/Makefile

4e0748f5 - MIPS: Use generic checksum functions for MIPS R6

Thu, 13 Nov 2014 11:25:27 +0000

MIPS: Use generic checksum functions for MIPS R6The following instructions have been removed from MIPS R6ulw, ulh, swl, lwr, lwl, swr.However, all of them are used in the MIPS specific checksum implementation.As a result of which, we will use the generic checksum on MIPS R6Signed-off-by: Markos Chandras List of files: /linux-6.15/arch/mips/lib/Makefile

e97c5b60 - MIPS: Make irqflags.h functions preempt-safe for non-mipsr2 cpus

Thu, 06 Sep 2012 15:36:56 +0000

MIPS: Make irqflags.h functions preempt-safe for non-mipsr2 cpusFor non MIPSr2 processors, such as the BMIPS 5000, calls toarch_local_irq_disable() and others may be preempted, and in doingso a stale value may be restored to c0_status. This fix disablespreemption for such processors prior to the call and enables itafter the call.Those functions that needed this fix have been "outlined" tomips-atomic.c, as they are no longer good candidates for inlining.This bug was observed in a BMIPS 5000, occuring once every few hoursin a continuous reboot test. It was traced to the write_lock_irq()function which was being invoked in release_task() in exit.c.By placing a number of "nops" inbetween the mfc0/mtc0 pair inarch_local_irq_disable(), which is called by write_lock_irq(), wewere able to greatly increase the occurance of this bug. Similarly,the application of this commit silenced the bug.Signed-off-by: Jim Quinlan Cc: linux-mips@linux-mips.orgCc: David Daney Cc: Kevin Cernekee cernekee@gmail.comCc: Jim Quinlan Patchwork: https://patchwork.linux-mips.org/patch/4321/Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/lib/Makefile

92d11594 - MIPS: Remove irqflags.h dependency from bitops.h

Thu, 06 Sep 2012 15:36:55 +0000

MIPS: Remove irqflags.h dependency from bitops.hThe "else clause" of most functions in bitops.h invokedraw_local_irq_{save,restore}() and in doing so had a dependency onirqflags.h. This fix moves said code to bitops.c, removing thedependency.Signed-off-by: Jim Quinlan Cc: linux-mips@linux-mips.orgCc: David Daney Cc: Kevin Cernekee cernekee@gmail.comCc: Jim Quinlan Patchwork: https://patchwork.linux-mips.org/patch/4320/Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/lib/Makefile

3165c846 - MIPS: introduce CPU_GENERIC_DUMP_TLB

Tue, 31 Jan 2012 17:18:43 +0000

MIPS: introduce CPU_GENERIC_DUMP_TLBAllows us not to duplicate more lines in arch/mips/lib/Makefile.Signed-off-by: Florian Fainelli Patchwork: http://patchwork.linux-mips.org/patch/3329/Signed-off-by: John Crispin List of files: /linux-6.15/arch/mips/lib/Makefile

bb0757eb - MIPS: Unify memcpy.S and memcpy-inatomic.S

Wed, 06 Jun 2012 22:00:31 +0000

MIPS: Unify memcpy.S and memcpy-inatomic.SWe can save the 451 lines of code that comprise memcpy-inatomic.S at theexpense of a single instruction in the memcpy prolog. We also use anadditional register (t6), so this may cause increased register pressure insome places as well. But I think the reduced maintenance burden, of nothaving two nearly identical implementations, makes it worth it.Signed-off-by: David Daney Cc: linux-mips@linux-mips.orgSigned-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/lib/Makefile

1c773ea4 - MIPS: Netlogic: Add XLP makefiles and config

Wed, 16 Nov 2011 00:21:28 +0000

MIPS: Netlogic: Add XLP makefiles and config- Add CPU_XLP and NLM_XLR_BOARD to arch/mips/Kconfig for Netlogic XLP boards- Update mips Makefiles to add XLPSigned-off-by: Jayachandran C Cc: linux-mips@linux-mips.orgPatchwork: https://patchwork.linux-mips.org/patch/2968/Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/lib/Makefile

7f058e85 - MIPS: Kconfig and Makefile update for Netlogic XLR/XLS

Fri, 06 May 2011 20:06:57 +0000

MIPS: Kconfig and Makefile update for Netlogic XLR/XLSAdd NLM_XLR_BOARD, CPU_XLR and other config optionsMakefile updates, mostly based on r4kSigned-off-by: Jayachandran C To: linux-mips@linux-mips.orgPatchwork: https://patchwork.linux-mips.org/patch/2334/Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/lib/Makefile

5636919b - MIPS: Outline udelay and fix a few issues.

Sat, 28 Feb 2009 09:44:28 +0000

MIPS: Outline udelay and fix a few issues.Outlining fixes the issue were on certain CPUs such as the R10000 familythe delay loop would need an extra cycle if it overlaps a cachelineboundary.The rewrite also fixes build errors with GCC 4.4 which was changed inway incompatible with the kernel's inline assembly.Relying on pure C for computation of the delay value removes the need forexplicit. The price we pay is a slight slowdown of the computation - tobe fixed on another day.Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/lib/Makefile

7e69deb8 - MIPS: Hook up Cavium OCTEON in arch/mips.

Thu, 11 Dec 2008 23:33:28 +0000

MIPS: Hook up Cavium OCTEON in arch/mips.Take all the OCTEON specific files that were added, and hook them intothe build system for the arch/mips. For versions of GCC that lackOCTEON support, override gas target architecture.Signed-off-by: Tomaso Paoletti Signed-off-by: David Daney Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/lib/Makefile

542c1020 - MIPS: Add CONFIG_CPU_R5500 for NEC VR5500 series processors

Thu, 23 Oct 2008 16:27:57 +0000

MIPS: Add CONFIG_CPU_R5500 for NEC VR5500 series processorsWe already have sufficient infrastructure to support VR5500 and VR5500Aseries processors. Here's a Makefile support to make it selectable byports, and enable it for NEC EMMA2RH Markeins board.This patch also fixes a confused target help, and adds 1Gb PageMask bitssupported by VR5500 and its variants.Signed-off-by: Shinya Kuribayashi Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/lib/Makefile

2704afeb - [MIPS] Add __cmpdi2

Fri, 24 Aug 2007 12:47:45 +0000

[MIPS] Add __cmpdi2Certain 32-bit kernel configurations seem to be able to cause references,this was observed with gcc 4.1.2.Signed-off-by: Ralf Baechle List of files: /linux-6.15/arch/mips/lib/Makefile