Date: Mon, 24 Jan 2000 11:26:57 -0700 From: Warner Losh <imp@village.org> To: Jeroen Ruigrok/Asmodai <asmodai@wxs.nl> Cc: "Daniel C. Sobral" <dcs@newsguy.com>, Bill Maniatty <maniattb@cs.rpi.edu>, FreeBSD-doc@FreeBSD.ORG, maniatty@cs.albany.edu, freebsd-hackers@FreeBSD.ORG, Greg Lehey <grog@lemis.com> Subject: Re: Learning the FreeBSD Kernel Message-ID: <200001241826.LAA04800@harmony.village.org> In-Reply-To: Your message of "Mon, 24 Jan 2000 16:16:40 %2B0100." <20000124161640.F691@daemon.ninth-circle.org> References: <20000124161640.F691@daemon.ninth-circle.org> <200001231648.LAA53658@cs.rpi.edu> <388C0FED.706330D0@newsguy.com>
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In message <20000124161640.F691@daemon.ninth-circle.org> Jeroen Ruigrok/Asmodai writes: : >As long as a device is just inb/outb (I seem to recall newbus have a : >replacement for these) : : bus_space_read_#() / bus_space_write_#() : : Where # is 1, 2, 4, or 8. But I don't think we support atomic 8 byte : atomic reads and writes. It isn't so much that "we" don't support atomic 8 byte operations, it is that the busses and cpus don't support these operations... Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-doc" in the body of the message
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