Date: Wed, 12 Apr 2000 22:16:59 -0400
From: "Gary T. Corcoran" <gcorcoran@lucent.com>
To: Warner Losh <imp@village.org>, freebsd-mobile@freebsd.org
Subject: Re: [Fwd: Re: [NEWCARD] pcic_handle in pcic_{enable,disable}_socket]
Message-ID: <38F52E1B.8D418F55@lucent.com>
References: <38F41E0C.7F912BDF@home.com>
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Warner Losh wrote: > -------- Original Message -------- > For "default" > allocations, it should just grab some memory/ioports/irq that are > free. For memory, likely it should only allocate in the ISA Hole > (since the cardbus bridge stuff will do this differently, but that is > later). For IOPORT, it should allocate in the "ISA" range of ports, > which is, iirc, 0 to 0x400, although we should avoid 0x00-0xff since > those are reserved by the Intel 8088 spec to be for the motherboard > resources (I think later x86 processors inherited this, Yes, the "ISA" range of ports is 0 to 0x3FF, and 0x00-0xFF are reserved for motherboard devices. Conventional wisdom says that normally standard built-in devices also use the 0x100-0x1FF range. Therefore, add in cards/devices for "ISA" should only use the 0x200-0x3FF range, to be safe... Gary To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message
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