Re: L1/L2 Cache Coloring from Userland ?

Mike Shaver (shaver@neon.ingenia.ca)
Fri, 19 Sep 1997 00:51:19 -0400 (EDT)

Thus spake Ralf Baechle:
> > A virt_to_phys syscall for userspace ought to be doable.
>
> Some of the IRIX stuff needs that, so we're going to implement that
> syssgi() operation too. Unless Miguel has already ...

/* The syssgi commands supported thus far. */
[...]
#define SGI_PHYSP 1011 /* Translate virtual into physical page. */

I think davem did it, actually. It's about 25 lines of code.

Mike

-- 
#> Mike Shaver (shaver@ingenia.com) Ingenia Communications Corporation 
#>              Commando Developer - Whatever It Takes
#>                                                                     
#> "See, you not only have to be a good coder to create a system like
#>    Linux, you have to be a sneaky bastard too." - Linus Torvalds