From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Lee, Chun-Yi" Subject: [PATCH] ACPI / init: Run acpi_early_init() before timekeeping_init() Date: Wed, 15 Jan 2014 15:25:48 +0800 Message-ID: <1389770748-32698-1-git-send-email-jlee@suse.com> Return-path: Sender: linux-efi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Alessandro Zummo Cc: Elliott-VXdhtT5mjnY@public.gmane.org, samer.el-haj-mahmoud-VXdhtT5mjnY@public.gmane.org, Oliver Neukum , werner-IBi9RG/b67k@public.gmane.org, trenn-l3A5Bk7waGM@public.gmane.org, JBeulich-IBi9RG/b67k@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, rtc-linux-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org, x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, "linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , linux-acpi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, "Lee, Chun-Yi" , "Rafael J. Wysocki" , Matt Fleming , "H. Peter Anvin" , Borislav Petkov , Matthew Garrett List-Id: linux-efi@vger.kernel.org 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 Cc: Matt Fleming Cc: H. Peter Anvin Cc: Borislav Petkov Cc: Matthew Garrett Tested-by: Toshi Kani Signed-off-by: Lee, Chun-Yi --- 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