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* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 397Thomas Gleixner2019-06-051-13/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program is free software you can distribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin st fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 33 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531081038.563233189@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* MIPS: math-emu: Use preferred flavor of unsigned integer declarationsAleksandar Markovic2017-11-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Fix occurences of unsigned integer variable declarations that are not preferred by standards of checkpatch scripts. This removes a significant number of checkpatch warnings for files in math-emu directory (several files become completely warning-free), and thus makes easier to spot (now and in the future) other, perhaps more significant, checkpatch errors and warnings. Signed-off-by: Aleksandar Markovic <aleksandar.markovic@mips.com> Reviewed-by: James Hogan <jhogan@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Douglas Leung <douglas.leung@mips.com> Cc: Goran Ferenc <goran.ferenc@mips.com> Cc: "Maciej W. Rozycki" <macro@imgtec.com> Cc: Manuel Lauss <manuel.lauss@gmail.com> Cc: Miodrag Dinic <miodrag.dinic@mips.com> Cc: Paul Burton <paul.burton@mips.com> Cc: Petar Jovanovic <petar.jovanovic@mips.com> Cc: Raghu Gandham <raghu.gandham@mips.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/17582/ Signed-off-by: James Hogan <jhogan@kernel.org>
* MIPS: math-emu: <MADDF|MSUBF>.S: Fix accuracy (32-bit case)Douglas Leung2017-08-291-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement fused multiply-add with correct accuracy. Fused multiply-add operation has better accuracy than respective sequential execution of multiply and add operations applied on the same inputs. This is because accuracy errors accumulate in latter case. This patch implements fused multiply-add with the same accuracy as it is implemented in hardware, using 64-bit intermediate calculations. One test case example (raw bits) that this patch fixes: MADDF.S fd,fs,ft: fd = 0x22575225 fs = ft = 0x3727c5ac Fixes: e24c3bec3e8e ("MIPS: math-emu: Add support for the MIPS R6 MADDF FPU instruction") Fixes: 83d43305a1df ("MIPS: math-emu: Add support for the MIPS R6 MSUBF FPU instruction") Signed-off-by: Douglas Leung <douglas.leung@imgtec.com> Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com> Signed-off-by: Goran Ferenc <goran.ferenc@imgtec.com> Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com> Cc: Douglas Leung <douglas.leung@imgtec.com> Cc: Bo Hu <bohu@google.com> Cc: James Hogan <james.hogan@imgtec.com> Cc: Jin Qian <jinqian@google.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Petar Jovanovic <petar.jovanovic@imgtec.com> Cc: Raghu Gandham <raghu.gandham@imgtec.com> Cc: <stable@vger.kernel.org> # 4.7+ Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/16890/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: math-emu: Fix m{add,sub}.s shiftsPaul Burton2016-05-131-9/+7
| | | | | | | | | | | | | | | | | | | The code in _sp_maddf (formerly ieee754sp_madd) appears to have been copied verbatim from ieee754sp_add, and although it's adding the unpacked "r" & "z" floats it kept using macros that operate on "x" & "y". This led to the addition being carried out incorrectly on some mismash of the product, accumulator & multiplicand fields. Typically this would lead to the assertions "ze == re" & "ze <= SP_EMAX" failing since ze & re hadn't been operated upon. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Fixes: e24c3bec3e8e ("MIPS: math-emu: Add support for the MIPS R6 MADDF FPU instruction") Cc: Adam Buchbinder <adam.buchbinder@gmail.com> Cc: Maciej W. Rozycki <macro@imgtec.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13159/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: math-emu: Add z argument macrosPaul Burton2016-05-131-0/+1
| | | | | | | | | | | | | Introduce macros for handling the "z" argument to maddf & msubf, making its handling consistent with that of the "x" & "y" arguments rather than open-coding equivalents. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Maciej W. Rozycki <macro@imgtec.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/13156/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: math-emu: Make NaN classifiers staticMaciej W. Rozycki2015-04-081-1/+0
| | | | | | | | | | | The `ieee754sp_isnan' and `ieee754dp_isnan' NaN classifiers are now no longer externally referred, remove their header prototypes and make them local to the two only respective places still making use of them. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/9693/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: math-emu: Cleanup coding style.Ralf Baechle2014-05-231-5/+1
| | | | | | | | | | | | o Only define variables in the outermost block o One empty line at most o Format comments as per CodingStyle o Update FSF address in licensing term comment o Spell FPU and MIPS in all capitals. o Remove ####-type of lines in comments. o Try to make things a bit most consistent between sp_*.c / dp_*.c files. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: math-emu: Cleanup definition of structs describe sp/dp floats.Ralf Baechle2014-05-231-6/+6
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: math-emu: Get rid of the useless parts of exception handling.Ralf Baechle2014-05-231-17/+1
| | | | | | All it really did was throw a printk for no obvious reason. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: math-emu: Inline ieee754sp_issnan and ieee754dp_issnan.Ralf Baechle2014-05-231-1/+0
| | | | | | Shaves another 16 bytes off but more importantly avoids function calls. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: math-emu: Remove unused ieee754sp_bestnan() and ieee754dp_bestnan().Ralf Baechle2014-05-231-1/+0
| | | | | | | Both are unused since lmo commit fdffbafbb38723618626c70ffdc6ff9175cdffa2 [Lots of FPU bug fixes from Kjeld Borch Egevang.] Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: math-emu: Inline ieee754dp_finite and ieee754dp_finite().Ralf Baechle2014-05-231-0/+5
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: math-emu: Eleminate duplicate definitions of identical macros.Ralf Baechle2014-05-231-0/+14
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: math-emu: Replace DP_MBITS with DP_FBITS and SP_MBITS with SP_FBITS.Ralf Baechle2014-05-231-4/+4
| | | | | | | Both were defined as 23 rsp. 52 though the mentissa is actually a bit more than the fraction. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: math-emu: Turn macros into functions where possible.Ralf Baechle2014-05-211-1/+1
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: math-emu: Reformat code according to coding style.Ralf Baechle2014-05-211-16/+17
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: math-emu: Get rid of typedefs.Ralf Baechle2014-05-211-9/+9
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: math-emu: Mark exception handling functions as __cold.Ralf Baechle2014-05-211-4/+5
| | | | | | | Optimizes the code flow and shaves of half a percent of the math-emu code size. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Update broken web addresses in arch directory.Justin P. Mattock2010-10-181-1/+0
| | | | | | | | | | | The patch below updates broken web addresses in the arch directory. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: Finn Thain <fthain@telegraphics.com.au> Cc: Randy Dunlap <rdunlap@xenotime.net> Reviewed-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* [MIPS] replace __inline with inlineHarvey Harrison2008-04-281-1/+1
| | | | | Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* [MIPS] checkfiles: Fix "need space after that ','" errors.Ralf Baechle2007-10-111-6/+6
| | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-161-0/+89
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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