From owner-freebsd-hackers Sat Jan 13 19:57:12 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from harmony.village.org (rover.village.org [204.144.255.66]) by hub.freebsd.org (Postfix) with ESMTP id 4EEAE37B698 for ; Sat, 13 Jan 2001 19:56:55 -0800 (PST) Received: from harmony.village.org (localhost.village.org [127.0.0.1]) by harmony.village.org (8.11.1/8.11.1) with ESMTP id f0E3uos95880; Sat, 13 Jan 2001 20:56:51 -0700 (MST) (envelope-from imp@harmony.village.org) Message-Id: <200101140356.f0E3uos95880@harmony.village.org> To: "Justin T. Gibbs" Subject: Re: bus_alloc_resource and RF_SHARABLE Cc: Robert Lipe , freebsd-hackers@FreeBSD.ORG In-reply-to: Your message of "Sat, 13 Jan 2001 08:29:51 MST." <200101131529.f0DFTps26367@aslan.scsiguy.com> References: <200101131529.f0DFTps26367@aslan.scsiguy.com> Date: Sat, 13 Jan 2001 20:56:50 -0700 From: Warner Losh Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In message <200101131529.f0DFTps26367@aslan.scsiguy.com> "Justin T. Gibbs" writes: : RF_SHARABLE requests to share a resource with another device, not : within the same device. Further, RF_SHARABLE only applies to : IRQs, not BARs. Actaully, the underlying RF_SHARABLE is for any region of resource that can be multiplexed between different devices. However, in practice, only IRQs can be shared. And even then the device drive would only be working around bugs in the bridge drivers that don't enable sharing. Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message