[PATCH v3 3/7] powerpc/64: Add logical PVR to the dump stack arch description
From: Michael Ellerman <mpe@ellerman.id.au>
Date: 2019-02-07 12:47:25
Also in:
linux-arch, lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
If we detect a logical PVR add that to the dump stack arch description, which is printed in case of an oops. eg: Hardware name: ... lpvr:0xf000004 Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> --- arch/powerpc/kernel/prom.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index ea2c3498067d..38a90097469a 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c@@ -371,8 +371,10 @@ static int __init early_init_dt_scan_cpus(unsigned long node, */ if (!dt_cpu_ftrs_in_use()) { prop = of_get_flat_dt_prop(node, "cpu-version", NULL); - if (prop && (be32_to_cpup(prop) & 0xff000000) == 0x0f000000) + if (prop && (be32_to_cpup(prop) & 0xff000000) == 0x0f000000) { identify_cpu(0, be32_to_cpup(prop)); + dump_stack_add_arch_desc("lpvr:0x%04x", be32_to_cpup(prop)); + } check_cpu_feature_properties(node); check_cpu_pa_features(node);
--
2.20.1