Messages in this thread | | | Date | Wed, 27 Mar 2002 16:24:02 +0100 (MET) | From | "Maciej W. Rozycki" <> | Subject | Re: [PATCH][RFC] P4/Xeon Thermal LVT support |
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On Wed, 27 Mar 2002, Zwane Mwaikambo wrote:
> > > #define FIRST_DEVICE_VECTOR 0x31 > > > +#define THERMAL_APIC_VECTOR 0x32 /* Thermal monitor local vector */ > > > #define FIRST_SYSTEM_VECTOR 0xef > > > > You certainly want to select a different vector. > > Whats wrong with that vector? I tried to follow the guidelines as > specified in hw_irq.h and opted to go for the lower priority ones, or > is the vector not serviceable due to its range?
You can't use a vector that is in the range assigned to I/O APIC interrupts (i.e. 0x31 - 0xee). Otherwise you'll get an overlap when the vector gets assigned to an ordinary IRQ line. Also you probably want a high-priority interrupt as the condition is serious, if not critical -- system failures, such as bus exceptions, machine check faults, parity errors, power failures, etc. demand a high priority service.
-- + Maciej W. Rozycki, Technical University of Gdansk, Poland + +--------------------------------------------------------------+ + e-mail: macro@ds2.pg.gda.pl, PGP key available +
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