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2022-09-24MIPS: remove define-only GDA_MAGIC, previously magic numberнаб1-2/+0
The last user was removed in the 2.6.4 "MIPS mega-patch", pre-git Found with grep MAGIC Documentation/process/magic-number.rst | while read -r mag _; do git grep -wF "$mag" | grep -ve '^Documentation.*magic-number.rst:' \ -qe ':#define '"$mag" || git grep -wF "$mag" | while IFS=: read -r f _; do sed -i '/\b'"$mag"'\b/d' "$f"; done ; done Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz> Link: https://lore.kernel.org/r/c2e7510beebdd698e20d0704712e623fad00fc1c.1663280877.git.nabijaczleweli@nabijaczleweli.xyz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-24MIPS: PCI: Add detection of IOC3 on IO7, IO8, IO9 and FuelThomas Bogendoerfer1-0/+4
Add detection for IOC3 chips in IP35 machines. Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2020-01-10MIPS: SGI-IP27: fix readb/writeb addressingThomas Bogendoerfer1-19/+19
Our chosen byte swapping, which is what firmware already uses, is to do readl/writel by normal lw/sw intructions (data invariance). This also means we need to mangle addresses for u8 and u16 accesses. The mangling for 16bit has been done aready, but 8bit one was missing. Correcting this causes different addresses for accesses to the SuperIO and local bus of the IOC3 chip. This is fixed by changing byte order in ioc3 and m48rtc_rtc structs. Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: David S. Miller <davem@davemloft.net> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: netdev@vger.kernel.org Cc: linux-rtc@vger.kernel.org
2020-01-10MIPS: SGI-IP27: Only reserve interrupts used in LinuxThomas Bogendoerfer1-17/+0
Reduce number of reserved interrupts by removing bits copied from IRIX and not used by Linux. Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2020-01-10MIPS: SGI-IP27: Move all shared IP27 declarations to ip27-common.hThomas Bogendoerfer1-19/+0
Move all IP27 declarations into one file. Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2020-01-10MIPS: SGI-IP27: Use specific get_region_shiftThomas Bogendoerfer1-0/+8
IP35 has a different way to find out regions, so we move the IP27 implementation to IP27 specific file. Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2020-01-10MIPS: SGI-IP27: Split kldir.h into generic SN and IP27 partsThomas Bogendoerfer2-187/+192
SGI-IP35 uses slightly different memory layout, so we move IP27 defines to IP27 specific files and keep the common stuff in kldir.h Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2020-01-10MIPS: SGI-IP27: Move get_nasid() to a IP27 specific fileThomas Bogendoerfer2-6/+10
get_nasid() will be different for SGI-IP35, therefore move IP27 implementation to IP27 specific file. Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2020-01-10MIPS: SGI-IP27: move IP27 specific macro to IP27 specific header fileThomas Bogendoerfer1-0/+12
Extracting node id from HUB register is specific to IP27 alias SN0. Move the macro definition to a SN0 header file. Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2020-01-10MIPS: SGI-IP27: get rid of asm/sn/sn0/ip27.hThomas Bogendoerfer1-85/+0
The only piece needed in ip27.h is SEND_NMI. Move the define to the only place where it's used and remove ip27.h Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2020-01-10MIPS: SGI-IP27: use asm/sn/agent.h for including HUB related stuffThomas Bogendoerfer3-17/+8
By including agent.h where hub related defines/structs are needed, we have only one place to select, which agent chip (HUB or BEDROCK) is used. Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2020-01-10MIPS: SGI-IP27: use cpu physid already present while scanning for CPUsThomas Bogendoerfer2-5/+0
By using cpu physid already present when scanning for CPUs get_cpu_slice() is unsued and can be removed together with two other then used functions. Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2019-11-02MIPS: SGI-IP27: replace MAX_COMPACT_NODE with MAX_NUMNODESThomas Bogendoerfer2-18/+2
MAX_COMPACT_NODE is a leftover from the compact node implementation, which is removed now. Use MAX_NUMNODES instead. Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Burton <paul.burton@mips.com> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2019-10-07MIPS: PCI: use information from 1-wire PROM for IOC3 detectionThomas Bogendoerfer1-0/+9
IOC3 chips in SGI system are conntected to a bridge ASIC, which has a 1-wire prom attached with part number information. This changeset uses this information to create PCI subsystem information, which the MFD driver uses for further platform device setup. Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: Lee Jones <lee.jones@linaro.org> Cc: David S. Miller <davem@davemloft.net> Cc: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jiri Slaby <jslaby@suse.com> Cc: linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-mips@vger.kernel.org Cc: netdev@vger.kernel.org Cc: linux-rtc@vger.kernel.org Cc: linux-serial@vger.kernel.org
2019-10-07MIPS: SGI-IP27: get rid of compact node idsThomas Bogendoerfer6-32/+7
Node ids don't need to be contiguous in Linux, so the concept to use compact node ids to make them contiguous isn't needed at all. This patchset therefore removes it. Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2019-10-07MIPS: SGI-IP27: remove not used stuff inherited from IRIXThomas Bogendoerfer3-13/+0
Most of the SN/SN0 header files are inherited from IRIX header files, but not all of that stuff is useful for Linux. Remove not used parts. Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2019-08-30MIPS: SGI-IP27: restructure ioc3 register accessThomas Bogendoerfer1-214/+143
Break up the big ioc3 register struct into functional pieces to make use in sub-function drivers more straightforward. And while doing that get rid of all volatile access by using readX/writeX. Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-10MIPS: SGI-IP27: abstract chipset irq from bridgeThomas Bogendoerfer1-0/+11
Bridge ASIC is widely used in different SGI systems, but the connected chipset is either HUB, HEART or BEDROCK. This commit switches to irq domain hierarchy for hub and bridge interrupts to get bridge setup out of hub interrupt code. Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> [paul.burton@mips.com: Resolve conflict with commit 69a07a41d908 ("MIPS: SGI-IP27: rework HUB interrupts").] Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2019-02-19MIPS: SGI-IP27: clean up bridge access and header filesThomas Bogendoerfer1-5/+0
Introduced bridge_read/bridge_write/bridge_set/bridge_clr for accessing bridge register and get rid of volatile declarations. Also removed all typedefs from arch/mips/include/asm/pci/bridge.h and cleaned up language in arch/mips/pci/ops-bridge.c Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2019-02-19MIPS: SGI-IP27: get rid of volatile and hubreg_tThomas Bogendoerfer3-66/+10
Replace hub register access with __raw_readq/__raw_writeq and get rid of hubreg_t completely. Also remove no longer (probably never used) used defines Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
2017-11-02License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman5-0/+5
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license 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 binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the 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 cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base 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 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately 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 license identifiers 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 the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version 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 correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-04-03MIPS: Fix misspellings in comments.Adam Buchbinder2-2/+2
Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com> Cc: linux-mips@linux-mips.org Cc: trivial@kernel.org Patchwork: https://patchwork.linux-mips.org/patch/12617/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-05-08MIPS: IP27: Remove pfn_t.Ralf Baechle2-2/+1
In the Linux kernel traditionally pfns are represented by an unsigned long. However a few bits of the SGI IP27 platform code that were ported from IRIX are using pfn_t for historic reasons. This is conflicting with KVM's use of pfn_t. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-02-01MIPS: Whitespace cleanup.Ralf Baechle22-939/+939
Having received another series of whitespace patches I decided to do this once and for all rather than dealing with this kind of patches trickling in forever. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-03-31Fix common misspellingsLucas De Marchi2-3/+3
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2010-08-05MIPS: IP27: Don't include <linux/topology.h> into <asm/sn/agent.h>.Ralf Baechle1-1/+0
The include is unecessary and will when building the IP35 result in recursive header inclusion spaghetti. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-27MIPS: Nuke trailing blank linesRalf Baechle1-1/+0
Recent git versions now warn about those and they've always been a bit of an annoyance. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-12-04tree-wide: fix assorted typos all over the placeAndré Goddard Rosa1-1/+1
That is "success", "unknown", "through", "performance", "[re|un]mapping" , "access", "default", "reasonable", "[con]currently", "temperature" , "channel", "[un]used", "application", "example","hierarchy", "therefore" , "[over|under]flow", "contiguous", "threshold", "enough" and others. Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-06-24MIPS: Build fix - include <linux/smp.h> into all smp_processor_id() users.Ralf Baechle1-0/+1
Some of the were relying into smp.h being dragged in by another header which of course is fragile. <asm/cpu-info.h> uses smp_processor_id() only in macros and including smp.h there leads to an include loop, so don't change cpu-info.h. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: IP27: Get rid of #ident. Gcc 4.4.0 doesn't like it.Ralf Baechle1-2/+2
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2009-05-14MIPS: IP27: Fix clash with NMI_OFFSET from hardirq.hThomas Bogendoerfer1-2/+2
There was already a define for NMI_OFFSET in asm/sn/addr.h, which now clashes with linux/hardirq.h. Rename the one in sn/addr.h to fix IP27 builds.. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-11MIPS: Move headfiles to new location below arch/mips/includeRalf Baechle25-0/+5942
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>