Date: Thu, 29 Oct 2015 17:47:43 -0700 From: Conrad Meyer <cemeyer@uw.edu> To: Konstantin Belousov <kostikbel@gmail.com> Cc: "Conrad E. Meyer" <cem@FreeBSD.org>, src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r290130 - head/sys/dev/ntb/ntb_hw Message-ID: <20151029174743.51650c51@m> In-Reply-To: <20151029075343.GO2257@kib.kiev.ua> References: <201510290416.t9T4GSG7044279@repo.freebsd.org> <20151029075343.GO2257@kib.kiev.ua>
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On Thu, 29 Oct 2015 09:53:43 +0200 Konstantin Belousov <kostikbel@gmail.com> wrote: > On Thu, Oct 29, 2015 at 04:16:28AM +0000, Conrad E. Meyer > wrote: > > Author: cem > > Date: Thu Oct 29 04:16:28 2015 > > New Revision: 290130 > > URL: https://svnweb.freebsd.org/changeset/base/290130 > > > > Log: > > ntb: Do not attempt to set write-combining on MWs > > > > AMD64 pmap assumes ranges will be in the DMAP, which > > isn't necessarily true for NTB memory windows (especially > > 64-bit BARs). > I am not sure what do you mean. pmap_change_attr() handles > either DMAP or kernel mapped memory. What JHB said -- the blind attempts to fixup DMAP memory types fixed in r290156. Best, Conrad
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