powerpc/mp: add support for discontiguous cores
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>
diff --git a/arch/powerpc/cpu/mpc85xx/cpu.c b/arch/powerpc/cpu/mpc85xx/cpu.c
index 22fa461..f51829e 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu.c
@@ -64,7 +64,8 @@
u32 ddr_ratio = 0;
#endif /* CONFIG_FSL_CORENET */
#endif /* CONFIG_DDR_CLK_FREQ */
- int i;
+ unsigned int i, core, nr_cores = cpu_numcores();
+ u32 mask = cpu_mask();
svr = get_svr();
major = SVR_MAJ(svr);
@@ -119,11 +120,11 @@
get_sys_info(&sysinfo);
puts("Clock Configuration:");
- for (i = 0; i < cpu_numcores(); i++) {
+ for_each_cpu(i, core, nr_cores, mask) {
if (!(i & 3))
printf ("\n ");
- printf("CPU%d:%-4s MHz, ",
- i,strmhz(buf1, sysinfo.freqProcessor[i]));
+ printf("CPU%d:%-4s MHz, ", core,
+ strmhz(buf1, sysinfo.freqProcessor[core]));
}
printf("\n CCB:%-4s MHz,\n", strmhz(buf1, sysinfo.freqSystemBus));