src/sys/mips/include/cpuinfo.h, branch main

mips: Remove sys/mips

2021-12-31T03:57:24Z

Remove sys/mips as the next step of decomissioning mips from the tree. Remove mips special cases from the kernel make files. Remove the mips specific linker scripts. Sponsored by: Netflix

spdx: initial adoption of licensing ID tags.

2017-11-18T14:26:50Z

The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Special thanks to Wind River for providing access to "The Duke of Highlander" tool: an older (2014) run over FreeBSD tree was useful as a starting point. Initially, only tag files that use BSD 4-Clause "Original" license. RelNotes: yes Differential Revision: https://reviews.freebsd.org/D13133

Add initial support for the floating point implementation register.

2017-05-09T17:35:16Z

- Save the current FIR in the global 'cpuinfo' structure in a new 'fpu_id' member. - Decode flags in the FIR when displaying other CPU flags during boot. - Use the existing "dummy" slot in the floating point register structure to export the FIR in process core dumps and via ptrace(). Note that while the FIR register is not volatile, this practice of storing the FIR in the floating-point register set is used in other OS's. Reviewed by: kan MFC after: 1 month Sponsored by: DARPA / AFRL Differential Revision: https://reviews.freebsd.org/D10617

Revert prior commit to restore the files mangled by my "fixing" merge

2017-03-01T02:10:40Z

conflicts for a git rebase I tried to do.

Renumber copyright clause 4

2017-02-28T23:42:47Z

Renumber cluase 4 to 3, per what everybody else did when BSD granted them permission to remove clause 3. My insistance on keeping the same numbering for legal reasons is too pedantic, so give up on that point. Submitted by: Jan Schaumann Pull Request: https://github.com/freebsd/freebsd/pull/96

[mips] add support for using the MIPS user register for TLS data.

2016-08-07T01:29:55Z

This work, originally from Stacey Son, uses the MIPS UserReg for reading the TLS data, and will fall back to the normal syscall path when it isn't supported. This code dynamically patches cpu_switch() to bypass the UserReg instruction so to avoid generating a machine exception. Thanks to sson for the original work, and to Dan Nelson for bringing it to date and testing it on MIPS32 with me. Tested: * mips64 (sson) * mips74k (dnelson_1901@yahoo.com) - AR9344 SoC, UserReg support * mips24k (adrian) - AR9331 SoC, no UserReg support Obtained from: sson, dnelson_1901@yahoo.com

[mips] Add TLB pagemask probing code, and print out the allowable page sizes.

2015-12-22T15:59:41Z

This is from Stacey's work on larger kernel stack sizes for MIPS. Thanks! Submitted by: sson

Add L2-cache writeback/flush operations. Supported 32,128-byte line-size,

2014-11-20T17:06:41Z

else ignored. Cavium Networks also ignored as it has non-standard config registers. Obtained from: NetBSD Sponsored by: DARPA, AFRL

Remove some unused cruft.

2010-03-04T05:37:19Z

Add support for CPUs with cache coherent DMA. The two main changes are:

2010-03-04T05:23:08Z

- We don't need to fall back to uncacheable memory to satisfy BUS_DMA_COHERENT requests on these CPUs. - The bus_dmamap_sync() is a no-op for these CPUs. A side-effect of this change is rename DMAMAP_COHERENT flag to DMAMAP_UNCACHEABLE. This conveys the purpose of the flag more accurately. Reviewed by: gonzo, imp