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[POWERPC] Update xmon slb code

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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 -- and displaying the LLP
bits.  This supresses the output for any slb entries that contain only
zeros.

sample output from power6 (1T segment support):
00 c000000008000000 40004f7ca3000500  1T  ESID=   c00000  VSID=       4f7ca3 LLP:100
01 d000000008000000 4000eb71b0000400  1T  ESID=   d00000  VSID=       eb71b0 LLP:  0
08 0000000018000000 0000c8499f8ccc80 256M ESID=        1  VSID=    c8499f8cc LLP:  0
09 00000000f8000000 0000d2c1a8e46c80 256M ESID=        f  VSID=    d2c1a8e46 LLP:  0
10 0000000048000000 0000ca87eab1dc80 256M ESID=        4  VSID=    ca87eab1d LLP:  0
43 cf00000008000000 400011b260000500  1T  ESID=   cf0000  VSID=       11b260 LLP:100

sample output from power5 (notice the non-valid but non-zero entries)
10 0000000008000000 00004fd0e077ac80 256M ESID=        0  VSID=    4fd0e077a LLP:  0
11 00000000f8000000 00005b085830fc80 256M ESID=        f  VSID=    5b085830f LLP:  0
12 0000000048000000 000052ce99fe6c80 256M ESID=        4  VSID=    52ce99fe6 LLP:  0
13 0000000018000000 000050904ed95c80 256M ESID=        1  VSID=    50904ed95 LLP:  0
14 cf00000008000000 0000d59aca40f500 256M ESID=cf0000000  VSID=    d59aca40f LLP:100
15 c000000078000000 000045cb97751500 256M ESID=c00000007  VSID=    45cb97751 LLP:100

Tested on power5 and power6.

Signed-Off-By: Will Schmidt <will_schmidt@vnet.ibm.com>

Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
will schmidt 2007-12-07 08:22:23 +11:00 committed by Paul Mackerras
parent 584f8b71a2
commit b3b9595f50
1 changed files with 23 additions and 6 deletions
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29
arch/powerpc/xmon/xmon.c
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@ -2539,16 +2539,33 @@ 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;
printf("SLB contents of cpu %x\n", smp_processor_id());
for (i = 0; i < mmu_slb_size; 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 = vsid & SLB_VSID_LLP;
if (vsid & SLB_VSID_B_1T) {
printf(" 1T ESID=%9lx VSID=%13lx LLP:%3lx \n",
GET_ESID_1T(esid),
(vsid & ~SLB_VSID_B) >> SLB_VSID_SHIFT_1T,
llp);
} else {
printf(" 256M ESID=%9lx VSID=%13lx LLP:%3lx \n",
GET_ESID(esid),
(vsid & ~SLB_VSID_B) >> SLB_VSID_SHIFT,
llp);
}
} else
printf("\n");
}
}
}