On Fri, 2008-08-29 at 08:56 -0500, Kumar Gala wrote:
> #if defined(CONFIG_40x) || defined(CONFIG_8xx)
> #define _tlbia() asm volatile ("tlbia; sync" : : : "memory")
> @@ -38,31 +41,31 @@ extern void _tlbia(void);
>
> static inline void flush_tlb_mm(struct mm_struct *mm)
> {
> - _tlbia();
> + _tlbil_all();
> }
>
Why not _tlbil_pid() ?
I think those flush_tlb_* should be implemented once for
all SW loaded TLB processors. The low level tlbil_pid
can just alias to tlbil_all() on CPUs that don't support
it (either that, or you do a read/test/write loop over
the TLB, might be worth experimenting with both).
Cheers,
Ben.
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