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authorMichael Ellerman <mpe@ellerman.id.au>2022-09-30 11:27:04 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2022-09-30 11:35:52 +0300
commit41dc056391b334fae646b55ee020bfa8f67b60c8 (patch)
treef95f8c666acb14b6bb503ac665cc6e661b60e272 /arch/powerpc/include/asm
parentd91c3f15fcaf90723ebdcd1c9172f9bb8ea4f09b (diff)
downloadlinux-41dc056391b334fae646b55ee020bfa8f67b60c8.tar.xz
powerpc: Add hardware description string
Create a hardware description string, which we will use to record various details of the hardware platform we are running on. Print the accumulated description at boot, and use it to set the generic description which is printed in oopses. To begin with add ppc_md.name, aka the "machine description". Example output at boot with the full series applied: Linux version 6.0.0-rc2-gcc-11.1.0-00199-g893f9007a5ce-dirty (michael@alpine1-p1) (powerpc64-linux-gcc (GCC) 11.1.0, GNU ld (GNU Binutils) 2.36.1) #844 SMP Thu Sep 29 22:29:53 AEST 2022 Hardware name: IBM pSeries (emulated by qemu) POWER9 (raw) 0x4e1200 0xf000005 of:SLOF,git-5b4c5a pSeries printk: bootconsole [udbg0] enabled Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220930082709.55830-1-mpe@ellerman.id.au
Diffstat (limited to 'arch/powerpc/include/asm')
-rw-r--r--arch/powerpc/include/asm/setup.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/setup.h b/arch/powerpc/include/asm/setup.h
index 85143849a586..e29e83f8a89c 100644
--- a/arch/powerpc/include/asm/setup.h
+++ b/arch/powerpc/include/asm/setup.h
@@ -88,6 +88,8 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
unsigned long pp, unsigned long r6,
unsigned long r7, unsigned long kbase);
+extern struct seq_buf ppc_hw_desc;
+
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_POWERPC_SETUP_H */