Date: Sun, 20 Jul 1997 14:03:37 +1000 From: Bruce Evans <bde@zeta.org.au> To: current@FreeBSD.ORG, smp@csn.net Cc: smp@FreeBSD.ORG Subject: Re: INT priorities Message-ID: <199707200403.OAA23396@godzilla.zeta.org.au>
next in thread | raw e-mail | index | archive | help
>I am currently struggling with INT code in the SMP kernel. To solve >the "problem of the day", I think I need to make a leap and re-arrange >the hw INTs to different APIC priority levels. For the first stab this >means 'constant' INTs like the 8254, RTC and possibly keyboard. I have 7 or 8 >prio levels to play with. Any suggestions where these should end up relative >to the rest of the INTs? The (non-SMP) kernel doesn't really care. It uses spl priorities for essentially everything except fast interrupt handlers. For fast interrupt handlers, the priorities only matter for interrupts that arrive concurrently. Bruce
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199707200403.OAA23396>