sst-linux/init
Thomas Gleixner 8183a89caf init: Invoke arch_cpu_finalize_init() earlier
commit 9df9d2f0471b4c4702670380b8d8a45b40b23a7d upstream

X86 is reworking the boot process so that initializations which are not
required during early boot can be moved into the late boot process and out
of the fragile and restricted initial boot phase.

arch_cpu_finalize_init() is the obvious place to do such initializations,
but arch_cpu_finalize_init() is invoked too late in start_kernel() e.g. for
initializing the FPU completely. fork_init() requires that the FPU is
initialized as the size of task_struct on X86 depends on the size of the
required FPU register buffer.

Fortunately none of the init calls between calibrate_delay() and
arch_cpu_finalize_init() is relevant for the functionality of
arch_cpu_finalize_init().

Invoke it right after calibrate_delay() where everything which is relevant
for arch_cpu_finalize_init() has been set up already.

No functional change intended.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Link: https://lore.kernel.org/r/20230613224545.612182854@linutronix.de
Signed-off-by: Daniel Sneddon <daniel.sneddon@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-08 20:03:47 +02:00
..
.gitignore kbuild: build init/built-in.a just once 2022-09-29 04:40:15 +09:00
build-version kbuild: build init/built-in.a just once 2022-09-29 04:40:15 +09:00
calibrate.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
do_mounts_initrd.c freezer,umh: Clean up freezer/initrd interaction 2022-09-07 21:53:48 +02:00
do_mounts_rd.c
do_mounts.c init: move from strlcpy with unused retval to strscpy 2022-09-11 21:55:10 -07:00
do_mounts.h
init_task.c rcu-tasks: Add data structures for lightweight grace periods 2022-06-20 09:22:28 -07:00
initramfs.c initramfs: mark my_inptr as __initdata 2022-09-11 21:55:11 -07:00
Kconfig gcc: disable '-Warray-bounds' for gcc-13 too 2023-04-26 14:28:43 +02:00
main.c init: Invoke arch_cpu_finalize_init() earlier 2023-08-08 20:03:47 +02:00
Makefile kbuild: generate include/generated/compile.h in top Makefile 2022-09-29 04:40:15 +09:00
noinitramfs.c init: move usermodehelper_enable() to populate_rootfs() 2021-09-08 11:50:27 -07:00
version-timestamp.c kbuild: build init/built-in.a just once 2022-09-29 04:40:15 +09:00
version.c kbuild: build init/built-in.a just once 2022-09-29 04:40:15 +09:00