diff options
| author |   Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2018-02-20 20:05:04 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2018-03-12 12:32:57 +0100 |
| commit | 50beba07a0e42ebd4454adc97515a2a2a969645b (patch) | |
| tree | acedb714315d2c8cb6b9c68f61320f8ac90de63d /arch/x86/kernel/acpi | |
| parent | x86/pconfig: Provide defines and helper to run MKTME_KEY_PROG leaf (diff) | |
| download | linux-dev-50beba07a0e42ebd4454adc97515a2a2a969645b.tar.xz linux-dev-50beba07a0e42ebd4454adc97515a2a2a969645b.zip | |
ACPI, x86/boot: Split out acpi_generic_reduce_hw_init() and export
This is a preparation patch to allow override the hardware reduced
initialization on ACPI enabled platforms.
No functional change intended.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-acpi@vger.kernel.org
Link: http://lkml.kernel.org/r/20180220180506.65523-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/acpi')
| -rw-r--r-- | arch/x86/kernel/acpi/boot.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index 2aa92094b59d..baa084ecffdb 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -1376,17 +1376,21 @@ static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d) * * We initialize the Hardware-reduced ACPI model here: */ +void __init acpi_generic_reduced_hw_init(void) +{ + /* + * Override x86_init functions and bypass legacy PIC in + * hardware reduced ACPI mode. + */ + x86_init.timers.timer_init = x86_init_noop; + x86_init.irqs.pre_vector_init = x86_init_noop; + legacy_pic = &null_legacy_pic; +} + static void __init acpi_reduced_hw_init(void) { - if (acpi_gbl_reduced_hardware) { - /* - * Override x86_init functions and bypass legacy pic - * in Hardware-reduced ACPI mode - */ - x86_init.timers.timer_init = x86_init_noop; - x86_init.irqs.pre_vector_init = x86_init_noop; - legacy_pic = &null_legacy_pic; - } + if (acpi_gbl_reduced_hardware) + acpi_generic_reduced_hw_init(); } /* |