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powerpc/mp: add support for discontiguous cores

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Some SOCs have discontiguously-numbered cores, and so we can't determine the
valid core numbers via the FRR register any more.  We define
CPU_TYPE_ENTRY_MASK to specify a discontiguous core mask, and helper functions
to process the mask and enumerate over the set of valid cores.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Timur Tabi 2011-08-05 16:15:24 -05:00 • committed by Kumar Gala
parent 86df5142a1
commit fbb9ecf749
8 changed files with 78 additions and 29 deletions
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5
common/cmd_mp.c
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@ -32,9 +32,8 @@ cpu_cmd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
return cmd_usage(cmdtp);
cpuid = simple_strtoul(argv[1], NULL, 10);
if (cpuid >= cpu_numcores()) {
printf ("Core num: %lu is out of range[0..%d]\n",
cpuid, cpu_numcores() - 1);
if (!is_core_valid(cpuid)) {
printf ("Core num: %lu is not valid\n", cpuid);
return 1;
}