Messages in this thread | | | Subject | Re: [RFC] new feattures to improve linux interrupt response | From | Alan Cox <> | Date | 07 Aug 2003 13:09:50 +0100 |
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On Iau, 2003-08-07 at 11:25, Takeharu KATO wrote: > a) Quick interruption handling facility for embedded systems > We are designing and implementing quick interrupt handling facility > for embedded systems. This is achieved by accepting some > interrupts(these are pre-defined in kernel configuration.) in current > Linux kernel's critical sections. > > We will modify local_irq_disable/local_irq_enable macros > to keep interrupt masks of some interrupts which need to handle quickly > un-masked in most of kernel critical sections.
Thats something you can do in board specific/platform specific code and it does seem to work. I had hacks at one point doing this for the serial port on the Macintosh II.
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