On Fri, Apr 20, 2001 at 11:37:24AM -0700, Scott A McConnell wrote: > In 2.4.0-test 5 the file arch/mips/kernel/irq.c used to be built. Under > 2.4.3 it no longer is. However, it appears it was renamed to old_irg.c > and a new irq.c was created. I also noticed that an i8259.c files was > added at some point. However, it does not seem to match the code that > was in irq.c. Not entirely, yet. The idea is that a board can register a structure containing information on how to handle an interrupt with the new irq.c So a board which has PC-style i8259 PICs could call init_i8259_irqs which in turn would register handlers for the interrupts 0 - 15 which would be handle in i8259; handler for other interrupts controllers could be registered also. > Are there any notes available that explain how to convert from old style > IRQ's to new? > What are we suppose to do with the new irq.c which is not being used? The IRQ changes should be considered work in progress; until the new interrupt code you should just follow the example given by the many existing implementations. > I have a 2.4.3 kernel booting. I copied the old arch/mips/kernel/irq.c > to my target directory and changed One valid solution ... Still. We want to eleminate all this code duplication for no good reason. > a few other things to get everything to compile. As long as I do not try > to use a serial port everything seems to be working. I booted with a > frame buffer and started X. The mouse and keyboard worked so some of my > IRQ's appear to be working. > > When I start the serial port things seem to go fine untile it trys to > write the port at which point it starts running very slowly. Which is > what make me think the kernel is being overcome with interrupts. Or you don't receive interrupts at all. Ralf
