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Add two new MIPS CPU families - mips24k and mips74k.

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They're both different cores:

* mips24k is an 8-stage pipeline, mips32r1 ABI, non-superscalar core.
* mips74k is a dual-issue 15-stage superscalar design, mips32r2 ABI.

They have different sets of quirks and bugs; these #define entries
will be used to work around these.

Now, strictly speaking, we should have CPU ABI families (mips32r1, mips32r2,
etc) and CPU core types (mips4k, mips24k, mips74k, etc.)  But this is the
starting point of that particular tidy-up.

Reviewed by:	imp@
Approved by:	re@ (gjb)
This commit is contained in:
Adrian Chadd 2013-10-09 00:21:21 +00:00
parent 8a959ae073
commit 57778cfec4
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=256170
1 changed files with 2 additions and 0 deletions
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2
sys/conf/options.mips
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@ -29,6 +29,8 @@
# $FreeBSD$
CPU_MIPS4KC opt_global.h
CPU_MIPS24KC opt_global.h
CPU_MIPS74KC opt_global.h
CPU_MIPS32 opt_global.h
CPU_MIPS64 opt_global.h
CPU_SENTRY5 opt_global.h