Messages in this thread Patch in this message | | | From | Michael Ellerman <> | Subject | [PATCH v3 2/7] powerpc: Add PVR & CPU name to dump stack arch description | Date | Thu, 7 Feb 2019 23:46:30 +1100 |
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As soon as we've done some basic setup, add the PVR and CPU name to the dump stack arch description, which is printed in case of an oops.
eg: Hardware name: ... POWER8E (raw) pvr:0x4b0201
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> --- arch/powerpc/kernel/cputable.c | 1 + arch/powerpc/kernel/prom.c | 4 ++++ 2 files changed, 5 insertions(+)
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index 1eab54bc6ee9..8b4520a84612 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -16,6 +16,7 @@ #include <linux/init.h> #include <linux/export.h> #include <linux/jump_label.h> +#include <linux/printk.h> #include <asm/oprofile_impl.h> #include <asm/cputable.h> diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index 4181ec715f88..ea2c3498067d 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -761,6 +761,10 @@ void __init early_init_devtree(void *params) dt_cpu_ftrs_scan(); + /* We can now set the CPU name & PVR for the oops output */ + dump_stack_add_arch_desc("%s pvr:0x%04lx", cur_cpu_spec->cpu_name, + mfspr(SPRN_PVR)); + /* Retrieve CPU related informations from the flat tree * (altivec support, boot CPU ID, ...) */ -- 2.20.1
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