Date: Fri, 3 Oct 2014 00:43:15 +0400 From: Slawa Olhovchenkov <slw@zxy.spb.ru> To: Peter Jeremy <peter@rulingia.com> Cc: freebsd-arch@freebsd.org Subject: Re: Removing disconnected tty drivers Message-ID: <20141002204315.GB45169@zxy.spb.ru> In-Reply-To: <20141002200636.GK20707@server.rulingia.com> References: <1789815.bS8Ac2qsJ6@ralph.baldwin.cx> <20141001100353.GF20707@server.rulingia.com> <20141001175952.GZ43300@funkthat.com> <20141001185011.GA12174@server.rulingia.com> <20141002123351.GA9212@zxy.spb.ru> <20141002200636.GK20707@server.rulingia.com>
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On Fri, Oct 03, 2014 at 06:06:36AM +1000, Peter Jeremy wrote: > On 2014-Oct-02 16:33:52 +0400, Slawa Olhovchenkov <slw@zxy.spb.ru> wrote: > >As I remember ISA/EISA and PCI different only in interrupt path. > >All other logic is common. > > From memory, the actual board access is different as well - the ISA > boards have a memory-mapped window and you need to move the window > around. The PCI boards linearly map the board's entire memory space. All cards have different window size. In PCI case windows size == memory size. Also, ISA PC/Xi have windows size == memory size. This is not significant difference.
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