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authorFranck Bui-Huu <vagabon.xyz@gmail.com>2007-10-08 16:11:51 +0200
committerRalf Baechle <ralf@linux-mips.org>2007-10-11 23:46:18 +0100
commitdec8b1ca990055f3a8954ac3bc98fdb785af52e4 (patch)
tree77fd9bb17cbb382d0488a19c172140be240fea66
parent89a8a5a6c965d3dd2571a263ef59e7b23a036d5e (diff)
[MIPS] Add BUG_ON assertion for attempt to run kernel on the wrong CPU type.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
-rw-r--r--arch/mips/kernel/cpu-probe.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 234c7f5005f..c8c47a2d197 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -922,6 +922,14 @@ __init void cpu_probe(void)
default:
c->cputype = CPU_UNKNOWN;
}
+
+ /*
+ * Platform code can force the cpu type to optimize code
+ * generation. In that case be sure the cpu type is correctly
+ * manually setup otherwise it could trigger some nasty bugs.
+ */
+ BUG_ON(current_cpu_type() != c->cputype);
+
if (c->options & MIPS_CPU_FPU) {
c->fpu_id = cpu_get_fpu_id();