From: Michael Ellerman <mpe@ellerman.id.au>
To: <linuxppc-dev@lists.ozlabs.org>
Cc: nathanl@linux.ibm.com
Subject: [PATCH v2 3/6] powerpc/64: Add logical PVR to the hardware description
Date: Thu, 29 Sep 2022 23:59:16 +1000 [thread overview]
Message-ID: <20220929135919.1983269-3-mpe@ellerman.id.au> (raw)
In-Reply-To: <20220929135919.1983269-1-mpe@ellerman.id.au>
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@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
next prev parent reply other threads:[~2022-09-29 14:00 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-29 13:59 [PATCH v2 1/6] powerpc: Add hardware description string Michael Ellerman
2022-09-29 13:59 ` [PATCH v2 2/6] powerpc: Add PVR & CPU name to hardware description Michael Ellerman
2022-09-29 13:59 ` Michael Ellerman [this message]
2022-09-29 13:59 ` [PATCH v2 4/6] powerpc: Add device-tree model to the " Michael Ellerman
2022-09-29 13:59 ` [PATCH v2 5/6] powerpc/powernv: Add opal details " Michael Ellerman
2022-09-29 13:59 ` [PATCH v2 6/6] powerpc/pseries: Add firmware " Michael Ellerman
2022-09-29 14:12 ` [PATCH v2 1/6] powerpc: Add hardware description string Michael Ellerman
-- strict thread matches above, loose matches on Subject: below --
2022-09-29 14:22 Michael Ellerman
2022-09-29 14:22 ` [PATCH v2 3/6] powerpc/64: Add logical PVR to the hardware description Michael Ellerman
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