Date: Fri, 22 Aug 2014 19:46:32 +0100 From: Craig Butler <craig001@lerwick.hopto.org> To: Konstantin Belousov <kostikbel@gmail.com> Cc: sparc64@freebsd.org Subject: Re: svn commit: r270201 - in head/sys: powerpc/include sys Message-ID: <1408733192.4056.5.camel@atlas.lerwick.hopto.org> In-Reply-To: <20140820082700.GY2737@kib.kiev.ua> References: <201408200802.s7K82cJ6059609@svn.freebsd.org> <20140820082700.GY2737@kib.kiev.ua>
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On Wed, 2014-08-20 at 11:27 +0300, Konstantin Belousov wrote: > On Wed, Aug 20, 2014 at 08:02:38AM +0000, Konstantin Belousov wrote: > > Author: kib > > Date: Wed Aug 20 08:02:38 2014 > > New Revision: 270201 > > URL: http://svnweb.freebsd.org/changeset/base/270201 > > > > Log: > > Add arch-specific macro SFBUF_PHYS_DMAP(), which should translate the > > physical address of the page to direct map address, in case > > SFBUF_OPTIONAL_DIRECT_MAP returns true. The case of PowerPC AIM > > 64bit, where the page physical address is identical to the direct map > > address, is accidental. > Real use of this interposer is for sparc64 machines which can use direct > map due to usable cache implementation. > > Could someone with the machine identified as SPARC64V test the following > patch ? Just booting multiuser should be enough. > > diff --git a/sys/sparc64/include/vmparam.h b/sys/sparc64/include/vmparam.h > index 8e7d76c..c2f30c3 100644 > --- a/sys/sparc64/include/vmparam.h > +++ b/sys/sparc64/include/vmparam.h > @@ -241,5 +241,8 @@ extern vm_offset_t vm_max_kernel_address; > > #define SFBUF > #define SFBUF_MAP > +#define SFBUF_OPTIONAL_DIRECT_MAP dcache_color_ignore > +#include <machine/tlb.h> > +#define SFBUF_PHYS_DMAP(x) TLB_PHYS_TO_DIRECT(x) > > #endif /* !_MACHINE_VMPARAM_H_ */ What machines are identified as SPARC64V ?? our collection only identifies as sparc64. I think the sun4v code got sin binned, AFAIK the sun4u identifies as just plain sparc64. Regards Craig
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