Date: Sun, 14 Jan 2018 19:52:11 +0200 From: Konstantin Belousov <kostikbel@gmail.com> To: Nathan Whitehorn <nwhitehorn@freebsd.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r327950 - in head/sys/powerpc: aim include powerpc ps3 Message-ID: <20180114175211.GD1684@kib.kiev.ua> In-Reply-To: <184ba3ee-a9f7-01ed-bb02-1bcba9acc041@freebsd.org> References: <201801132314.w0DNEra5002692@repo.freebsd.org> <20180113232441.GV1684@kib.kiev.ua> <010d0153-8931-a3c2-db21-dfcbaf848fc0@freebsd.org> <f33e9b1a-28bd-e6cf-4bdb-ec0097c0787d@freebsd.org> <20180114083036.GX1684@kib.kiev.ua> <ede06fc6-7c34-100c-8a7a-6346cd8cd363@freebsd.org> <20180114170502.GB1684@kib.kiev.ua> <184ba3ee-a9f7-01ed-bb02-1bcba9acc041@freebsd.org>
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On Sun, Jan 14, 2018 at 09:30:53AM -0800, Nathan Whitehorn wrote: > The immediate consequence of that is that no MI code that knows about > direct maps can possibly take advantage of the direct map on this > platform. Do we really want that to save some conditional logic that > would get optimized out on amd64 and arm64 anyway? I really do not see > the benefit here. It is not clear what do you mean. Are you saying that there is no benefit of providing the conditional logic, or that it is not benefit of exclusing powerpc ? I do not object against adding the conditional, but it should not be too clumsy to use.
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