Date: Mon, 9 Nov 2015 12:27:24 -0800 From: Adrian Chadd <adrian.chadd@gmail.com> To: Ian Lepore <ian@freebsd.org> Cc: AlexHully <deco33000@yandex.com>, "freebsd-hackers@freebsd.org" <freebsd-hackers@freebsd.org> Subject: Re: dma Message-ID: <CAJ-Vmo=qG82whP7%2BJm-aVMekYi%2B_EWRnQ2_7iJrHKVcs1KjcOA@mail.gmail.com> In-Reply-To: <1447091132.91534.480.camel@freebsd.org> References: <298361446978177@web22g.yandex.ru> <1447091132.91534.480.camel@freebsd.org>
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Hi, You still have 32 bit capable DMA machines on > 32 bit platform devices. eg, the 36 bit PAE stuff on x86, or the PAE style stuff that showed up on powerpc, or 32 bit DMA devices on 64 bit intel/arm/mips platforms, etc. Bounce buffers aren't going anywhere. -adrian
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