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SubjectRe: [RFC] new feattures to improve linux interrupt response
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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