Date: Fri, 23 Feb 2018 20:46:58 -0800 From: Oleksandr Tymoshenko <gonzo@bluezbox.com> To: Jon Brawn <jon@brawn.org> Cc: freebsd-arm@freebsd.org, FreeBSD current <freebsd-current@freebsd.org> Subject: Re: INTRNG Message-ID: <20180224044658.GA1384@bluezbox.com> In-Reply-To: <401A33BD-F3AE-4139-9D47-6F85C8333022@brawn.org> References: <401A33BD-F3AE-4139-9D47-6F85C8333022@brawn.org>
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Jon Brawn (jon@brawn.org) wrote: > Wotcha Gang! > > In my travels through the arm64 GENERIC config file I came across the option ‘INTRNG’, and wondered what it was: > > INTeRrupt Next Generation? > INTeger Random Number Generator? > IN TRaiNinG? > INTerrupt Random Number Generator? > INdependent TRaiNinG? > > So, please put me out of my misery, what does INTRNG stand for, and what are its implications when selected vs not selected? "INTeRrupt Next Generation". It's a framework to manage complex interrupt routing cases. I think it's required for all recent ARM platforms, you can't disable it for ARM64. It can be disabled for older ARM/MIPS platforms that use old-style interrupt cascading. -- gonzo
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