[PATCH 4/4 v3] SPARC: optimize IRQ enable & disable

[Sebastian Huber]

Looks good.

On 03/12/14 15:29, Daniel Hellstrom wrote:
> * Coding style cleanups.
> * Use OS reserved trap 0x89 for IRQ Disable
> * Use OS reserved trap 0x8A for IRQ Enable
> * Add to SPARC CPU supplement documentation
>
> This will result in faster Disable/Enable code since the
> system trap handler does not need to decode which function
> the user wants. Besides the IRQ disable/enabled can now
> be inline which avoids the caller to take into account that
> o0-o7+g1-g4 registers are destroyed by trap handler.
>
> It was also possible to reduce the interrupt trap handler by
> five instructions due to this.

-- 
Sebastian Huber, embedded brains GmbH

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