This is a variant patch from Rafael J. Wysocki's
ACPI / init: Run acpi_early_init() before efi_enter_virtual_mode()
According to Matt Fleming, if acpi_early_init() was executed before
efi_enter_virtual_mode(), the EFI initialization could benefit from
it, so Rafael's patch makes that happen.
And, we want accessing ACPI TAD device to set system clock, so move
acpi_early_init() before timekeeping_init(). This final position is
also before efi_enter_virtual_mode().
v2:
Move acpi_early_init() before timekeeping_init() to prepare setting
system clock with ACPI TAD.
v1:
Rafael J. Wysocki
ACPI / init: Run acpi_early_init() before efi_enter_virtual_mode()
Cc: Rafael J. Wysocki <r...@rjwysocki.net>
Cc: Matt Fleming <m...@console-pimps.org>
Cc: H. Peter Anvin <h...@zytor.com>
Cc: Borislav Petkov <b...@suse.de>
Cc: Matthew Garrett <matthew.garr...@nebula.com>
Tested-by: Toshi Kani <toshi.k...@hp.com>
Signed-off-by: Lee, Chun-Yi <j...@suse.com>
---
init/main.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/init/main.c b/init/main.c
index febc511..b6d93c8 100644
--- a/init/main.c
+++ b/init/main.c
@@ -565,6 +565,7 @@ asmlinkage void __init start_kernel(void)
init_timers();
hrtimers_init();
softirq_init();
+ acpi_early_init();
timekeeping_init();
time_init();
sched_clock_postinit();
@@ -641,7 +642,6 @@ asmlinkage void __init start_kernel(void)
check_bugs();
- acpi_early_init(); /* before LAPIC and SMP init */
sfi_init_late();
if (efi_enabled(EFI_RUNTIME_SERVICES)) {
--
1.6.4.2
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