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powerpc: Add PVR & CPU name to hardware description

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Add the PVR and CPU name to the hardware description, which is printed
at boot and in case of an oops.

eg: Hardware name: ... POWER8E (raw) 0x4b0201

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220930082709.55830-2-mpe@ellerman.id.au
This commit is contained in:
Michael Ellerman
2022-09-30 18:27:05 +10:00
parent 41dc056391
commit bd649d40e0
1 changed files with 4 additions and 0 deletions
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4
arch/powerpc/kernel/prom.c
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@@ -30,6 +30,7 @@
#include <linux/libfdt.h> #include <linux/libfdt.h>
#include <linux/cpu.h> #include <linux/cpu.h>
#include <linux/pgtable.h> #include <linux/pgtable.h>
#include <linux/seq_buf.h>
#include <asm/rtas.h> #include <asm/rtas.h>
#include <asm/page.h> #include <asm/page.h>
@@ -819,6 +820,9 @@ void __init early_init_devtree(void *params)
dt_cpu_ftrs_scan(); dt_cpu_ftrs_scan();
// We can now add the CPU name & PVR to the hardware description
seq_buf_printf(&ppc_hw_desc, "%s 0x%04lx ", cur_cpu_spec->cpu_name, mfspr(SPRN_PVR));
/* Retrieve CPU related informations from the flat tree /* Retrieve CPU related informations from the flat tree
* (altivec support, boot CPU ID, ...) * (altivec support, boot CPU ID, ...)
*/ */