From: Michael Ellerman <mpe@ellerman.id.au>
To: <linuxppc-dev@lists.ozlabs.org>
Subject: [PATCH 4/6] powerpc: Add device-tree model to dump stack arch description
Date: Wed, 28 Sep 2022 23:40:23 +1000 [thread overview]
Message-ID: <20220928134025.1739909-4-mpe@ellerman.id.au> (raw)
In-Reply-To: <20220928134025.1739909-1-mpe@ellerman.id.au>
Add the model of the machine we're on to the dump stack arch
description, which is printed in case of an oops.
eg: Hardware name: model:'IBM,8247-22L'
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
arch/powerpc/kernel/prom.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index dca06ef7fcde..605e4ad8a4c2 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -715,6 +715,23 @@ static void __init tm_init(void)
static void tm_init(void) { }
#endif /* CONFIG_PPC_TRANSACTIONAL_MEM */
+static int __init
+early_init_dt_scan_model(unsigned long node, const char *uname,
+ int depth, void *data)
+{
+ const char *prop;
+
+ if (depth != 0)
+ return 0;
+
+ prop = of_get_flat_dt_prop(node, "model", NULL);
+ if (prop)
+ seq_buf_printf(&ppc_hw_desc, "model:'%s' ", prop);
+
+ /* break now */
+ return 1;
+}
+
#ifdef CONFIG_PPC64
static void __init save_fscr_to_task(void)
{
@@ -743,6 +760,8 @@ void __init early_init_devtree(void *params)
if (!early_init_dt_verify(params))
panic("BUG: Failed verifying flat device tree, bad version?");
+ of_scan_flat_dt(early_init_dt_scan_model, NULL);
+
#ifdef CONFIG_PPC_RTAS
/* Some machines might need RTAS info for debugging, grab it now. */
of_scan_flat_dt(early_init_dt_scan_rtas, NULL);
--
2.37.3
next prev parent reply other threads:[~2022-09-28 13:41 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-28 13:40 [PATCH 1/6] powerpc: Add ppc_md.name to dump stack arch description Michael Ellerman
2022-09-28 13:40 ` [PATCH 2/6] powerpc: Add PVR & CPU name " Michael Ellerman
2022-09-28 13:40 ` [PATCH 3/6] powerpc/64: Add logical PVR to the " Michael Ellerman
2022-09-28 13:40 ` Michael Ellerman [this message]
2022-09-28 13:40 ` [PATCH 5/6] powerpc/powernv: Add opal details to " Michael Ellerman
2022-09-28 13:40 ` [PATCH 6/6] powerpc/pseries: Add firmware " Michael Ellerman
2022-09-28 20:14 ` Nathan Lynch
2022-09-30 4:28 ` Michael Ellerman
2022-09-28 20:35 ` [PATCH 1/6] powerpc: Add ppc_md.name " Nathan Lynch
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