[PATCH v2 3/6] powerpc/64: Add logical PVR to the hardware description
Michael Ellerman
mpe at ellerman.id.au
Fri Sep 30 00:22:48 AEST 2022
If we detect a logical PVR add that to the hardware description, which
is printed at boot and in case of an oops.
eg: Hardware name: ... lpvr:0xf000004
Signed-off-by: Michael Ellerman <mpe at 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 b42e2dbeb021..8c4cce6dc1e8 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -390,8 +390,10 @@ 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));
+ seq_buf_printf(&ppc_hw_desc, "lpvr:0x%04x ", be32_to_cpup(prop));
+ }
check_cpu_feature_properties(node);
check_cpu_features(node, "ibm,pa-features", ibm_pa_features,
--
2.37.3
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