On Tue, 2007-10-30 at 16:50 -0500, Will Schmidt wrote:
> [powerpc] update xmon slb code
>
> This adds a bit more detail to the xmon SLB output. When the valid bit is
> set, This displays the ESID and VSID values, as well as decoding the
> segment size. (1T or 256M). This supresses the output for any slb entries
> that contain only zeros.
>
> sample output from power6 (1T segment support):
.../....
>
> Tested on power5 and power6.
>
> Signed-Off-By: Will Schmidt <[EMAIL PROTECTED]>
Acked-by: Benjamin Herrenschmidt <[EMAIL PROTECTED]>
> ---
> This version adds padding around the ESID and VSID fields, and the LLP bits
> are displayed too. (Per request from Olof and Ben).
> I'll try to follow up sometime later with code that will handle decoding page
> sizes. I dont have a testcase handy to properly exercise that yet. :-)
> ---
>
> arch/powerpc/xmon/xmon.c | 27 +++++++++++++++++++++------
> 1 files changed, 21 insertions(+), 6 deletions(-)
>
>
> diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
> index 121b04d..93c26c3 100644
> --- a/arch/powerpc/xmon/xmon.c
> +++ b/arch/powerpc/xmon/xmon.c
> @@ -2527,16 +2527,31 @@ static void xmon_print_symbol(unsigned long address,
> const char *mid,
> static void dump_slb(void)
> {
> int i;
> - unsigned long tmp;
> + unsigned long esid,vsid,valid;
> + unsigned long llp_bits;
>
> printf("SLB contents of cpu %x\n", smp_processor_id());
>
> for (i = 0; i < SLB_NUM_ENTRIES; i++) {
> - asm volatile("slbmfee %0,%1" : "=r" (tmp) : "r" (i));
> - printf("%02d %016lx ", i, tmp);
> -
> - asm volatile("slbmfev %0,%1" : "=r" (tmp) : "r" (i));
> - printf("%016lx\n", tmp);
> + asm volatile("slbmfee %0,%1" : "=r" (esid) : "r" (i));
> + asm volatile("slbmfev %0,%1" : "=r" (vsid) : "r" (i));
> + valid = (esid & SLB_ESID_V);
> + if (valid | esid | vsid) {
> + printf("%02d %016lx %016lx", i, esid, vsid);
> + if (valid) {
> + llp_bits = vsid & SLB_VSID_LLP;
> + if (vsid & SLB_VSID_B_1T) {
> + printf(" 1T ESID=%9lx VSID=%10lx LLP
> bits:%3lx \n",
> + GET_ESID_1T(esid),vsid >>
> SLB_VSID_SHIFT_1T,
> + llp_bits);
> + } else {
> + printf(" 256M ESID=%9lx VSID=%10lx LLP
> bits:%3lx \n",
> + GET_ESID(esid),vsid >>
> SLB_VSID_SHIFT,
> + llp_bits);
> + }
> + } else
> + printf("\n");
> + }
> }
> }
>
>
>
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