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authorDavid Daney <ddaney@caviumnetworks.com>2010-07-26 21:29:37 (GMT)
committerRalf Baechle <ralf@linux-mips.org>2010-08-05 12:26:26 (GMT)
commit0c2f4551df3880083e4733b5d928d2758b71162c (patch)
tree2eec2945e305d8938fff39194d949493379c77a1
parentfa90c87297a1bebd8356e41d71518b37ada56583 (diff)
downloadlinux-0c2f4551df3880083e4733b5d928d2758b71162c.tar.xz
MIPS: Decode core number for R2 CPUs.
The struct cpuinfo_mips.core field should be populated with the physical core number. For R2 CPUs, this is carried in the low 10 bits of Ebase. Signed-off-by: David Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1505/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
-rw-r--r--arch/mips/kernel/cpu-probe.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 9b663317..b1b304e 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -761,6 +761,9 @@ static void __cpuinit decode_configs(struct cpuinfo_mips *c)
ok = decode_config4(c);
mips_probe_watch_registers(c);
+
+ if (cpu_has_mips_r2)
+ c->core = read_c0_ebase() & 0x3ff;
}
static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu)