diff options
| author | Jordan Niethe <jniethe5@gmail.com> | 2020-10-14 09:28:37 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-11-19 04:49:56 +0100 |
| commit | 344fbab991a568dc33ad90711b489d870e18d26d (patch) | |
| tree | 9e238e64e62494a77908c928782763760422bf77 /arch/powerpc/include | |
| parent | powerpc/64: Set up a kernel stack for secondaries before cpu_restore() (diff) | |
| download | linux-344fbab991a568dc33ad90711b489d870e18d26d.tar.xz linux-344fbab991a568dc33ad90711b489d870e18d26d.zip | |
powerpc/64s: Convert some cpu_setup() and cpu_restore() functions to C
The only thing keeping the cpu_setup() and cpu_restore() functions
used in the cputable entries for Power7, Power8, Power9 and Power10 in
assembly was cpu_restore() being called before there was a stack in
generic_secondary_smp_init(). Commit ("powerpc/64: Set up a kernel
stack for secondaries before cpu_restore()") means that it is now
possible to use C.
Rewrite the functions in C so they are a little bit easier to read.
This is not changing their functionality.
Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
[mpe: Tweak copyright and authorship notes]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201014072837.24539-2-jniethe5@gmail.com
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/cpu_setup_power.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/cpu_setup_power.h b/arch/powerpc/include/asm/cpu_setup_power.h new file mode 100644 index 000000000000..24be9131f803 --- /dev/null +++ b/arch/powerpc/include/asm/cpu_setup_power.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2020 IBM Corporation + */ +void __setup_cpu_power7(unsigned long offset, struct cpu_spec *spec); +void __restore_cpu_power7(void); +void __setup_cpu_power8(unsigned long offset, struct cpu_spec *spec); +void __restore_cpu_power8(void); +void __setup_cpu_power9(unsigned long offset, struct cpu_spec *spec); +void __restore_cpu_power9(void); +void __setup_cpu_power10(unsigned long offset, struct cpu_spec *spec); +void __restore_cpu_power10(void); |