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| author | Nicholas Piggin <npiggin@gmail.com> | 2020-05-08 06:33:57 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-05-18 13:58:45 +0200 |
| commit | 7368b38b21bfa39df637701a480262c15ab1a49e (patch) | |
| tree | b4f2b99049d5a6e08105765a20b40001a6ec376c /arch/powerpc/include/asm/firmware.h | |
| parent | powerpc/64s/exceptions: Machine check reconcile irq state (diff) | |
| download | linux-7368b38b21bfa39df637701a480262c15ab1a49e.tar.xz linux-7368b38b21bfa39df637701a480262c15ab1a49e.zip | |
powerpc/pseries/ras: Avoid calling rtas_token() in NMI paths
In the interest of reducing code and possible failures in the
machine check and system reset paths, grab the "ibm,nmi-interlock"
token at init time.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Mahesh Salgaonkar <mahesh@linux.ibm.com>
Link: https://lore.kernel.org/r/20200508043408.886394-6-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc/include/asm/firmware.h')
| -rw-r--r-- | arch/powerpc/include/asm/firmware.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/firmware.h b/arch/powerpc/include/asm/firmware.h index ca33f4ef6cb4..6003c2e533a0 100644 --- a/arch/powerpc/include/asm/firmware.h +++ b/arch/powerpc/include/asm/firmware.h @@ -128,6 +128,7 @@ extern void machine_check_fwnmi(void); /* This is true if we are using the firmware NMI handler (typically LPAR) */ extern int fwnmi_active; +extern int ibm_nmi_interlock_token; extern unsigned int __start___fw_ftr_fixup, __stop___fw_ftr_fixup; |