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Re: CVS commit: src/sys/arch/mips

On 11/05/2014 16:47, Michael wrote:

On Sun, 11 May 2014 07:53:28 +0000
"Nick Hudson" <> wrote:

Module Name:    src
Committed By:   skrll
Date:           Sun May 11 07:53:28 UTC 2014

Modified Files:
        src/sys/arch/mips/include: pmap.h
        src/sys/arch/mips/mips: pmap.c pmap_segtab.c

Log Message:
Deal with incompatible cache aliases. Specifically,

- always flush an ephemeral page on unmap
- track unmanaged mappings (mappings entered via pmap_kenter_pa) for
   aliases where required and handle appropriately (via pmap_enter_pv)

Hopefully this (finally) addresses the instability reported in the
following PRs:

PR/44900 - R5000/Rm5200 mips ports are broken
PR/46890 - upcoming NetBSD 6.0 release is very unstable / unusable on cobalt 
qube 2
PR/48628 - cobalt and hpcmips ports are dead

To generate a diff of this commit:
cvs rdiff -u -r1.62 -r1.63 src/sys/arch/mips/include/pmap.h
cvs rdiff -u -r1.213 -r1.214 src/sys/arch/mips/mips/pmap.c
cvs rdiff -u -r1.7 -r1.8 src/sys/arch/mips/mips/pmap_segtab.c
My O2's been building stuff from pkgsrc for the last hour without any
of the glitches we've seen before ( fingers crossed )
Good news.

Building perl now, let's see how that goes.
I'm using an n32 userland and kernel, with the bus_dma.c changes
tsutsui@ mentioned adapted to sgimips/bus.c,

How about switching to generic bus_{dma,space}?

  gcc 4.5, gmp patched as
posted earlier.

Is this ready to commit?


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