use of fixmap on non-x86/sh?

2007-11-30 Thread Kumar Gala
Ben and I are talking about using fixmap on ppc for similar applications to it use on x86. However in poking around other arch's (sparc, mips) they appear to have some support but not as complete as x86. For example both SPARC & MIPS reference __set_fixmap() in asm/fixmap.h but I can't f

Re: use of fixmap on non-x86/sh?

2007-11-30 Thread Paul Mundt
On Fri, Nov 30, 2007 at 04:14:55PM -0600, Kumar Gala wrote: > Ben and I are talking about using fixmap on ppc for similar > applications to it use on x86. However in poking around other arch's > (sparc, mips) they appear to have some support but not as complete as > x86. > > For example bot

Re: use of fixmap on non-x86/sh?

2007-11-30 Thread Benjamin Herrenschmidt
On Sat, 2007-12-01 at 10:03 +0900, Paul Mundt wrote: > There are of course things that make this more attractive on x86, > especially with regards to the global bit and preservation across a > TLB > flush, there's a note in arch/sh/mm/init.c above __set_fixmap() about > that. fixmap doesn't really

Re: use of fixmap on non-x86/sh?

2007-12-08 Thread Ralf Baechle
On Fri, Nov 30, 2007 at 04:14:55PM -0600, Kumar Gala wrote: > Ben and I are talking about using fixmap on ppc for similar applications to > it use on x86. However in poking around other arch's (sparc, mips) they > appear to have some support but not as complete as x86. > > For example both SPAR