Re: [MIPS] SB1: Build fix: delete initialization of flush_icache_page pointer.

[Atsushi Nemoto <anemo@mba.ocn.ne.jp>]

On Mon, 21 Aug 2006 12:27:47 -0700, "Manoj Ekbote" <manoje@broadcom.com> wrote:
> The patch doesn't help. The kernel hangs in the same fashion. 

Thank you for testing.

Then I have no idea why the kernel hangs...


Random thoughts:

Does it still hang on init=/bin/sh?

Does enabling second and third "#if 0" blocks in arch/mips/mm/fault.c
show some useful information?

Finally, I think there is no serious reason separating c-sb1.c from
c-r4k.c.  The c-r4k.c support both vtagged-icache and pindexed-dcache,
therefore SB1 can use it too.

mm/c-r4k.c:probe_pcache()
        switch (c->cputype) {
        case CPU_20KC:
        case CPU_25KF:
        case CPU_SB1:
        case CPU_SB1A:
                c->dcache.flags |= MIPS_CACHE_PINDEX;
        case CPU_R10000:
        case CPU_R12000:
        case CPU_R14000:
                break;

kernel/cpu-probe.c:cpu_probe_sibyte()
#if 0
        c->options &= ~MIPS_CPU_4K_CACHE;
        c->options |= MIPS_CPU_SB1_CACHE;
#endif

---
Atsushi Nemoto