Commit-ID: 9c71206d060d4e84896f3bd680319b29fe88b8e8
Gitweb: http://git.kernel.org/tip/9c71206d060d4e84896f3bd680319b29fe88b8e8
Author: Dou Liyang <douly.fnst@xxxxxxxxxxxxxx>
AuthorDate: Wed, 13 Sep 2017 17:17:54 +0800
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Wed, 27 Sep 2017 09:37:41 +0200
ACPI/init: Invoke early ACPI initialization earlier
acpi_early_init() unmaps the temporary ACPI Table mappings which are used
in the early startup code and prepares for permanent table mappings.
Before the consolidation of the x86 APIC setup code the invocation of
acpi_early_init() happened before the interrupt remapping unit was
initialized. With the rework the remapping unit initialization moved in
front of acpi_early_init() which causes an ACPI warning when the ACPI root
tables get reallocated afterwards.
Invoke acpi_early_init() before late_time_init() which is before the access
to the DMAR tables happens.
Fixes: 935356cecda8 ("x86/apic: Initialize interrupt mode after timer init")
Reported-by: Xiaolong Ye <xiaolong.ye@xxxxxxxxx>
Signed-off-by: Dou Liyang <douly.fnst@xxxxxxxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: linux-ia64@xxxxxxxxxxxxxxx
Cc: bhe@xxxxxxxxxx
Cc: Fenghua Yu <fenghua.yu@xxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
Cc: linux-acpi@xxxxxxxxxxxxxxx
Cc: bp@xxxxxxxxx
Cc: Lv" <lv.zheng@xxxxxxxxx>
Cc: yinghai@xxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Link: https://lkml.kernel.org/r/1505294274-441-1-git-send-email-douly.fnst@xxxxxxxxxxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
init/main.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/init/main.c b/init/main.c
index 0ee9c686..2fb98a4 100644
--- a/init/main.c
+++ b/init/main.c
@@ -664,12 +664,12 @@ asmlinkage __visible void __init start_kernel(void)
debug_objects_mem_init();
setup_per_cpu_pageset();
numa_policy_init();
+ acpi_early_init();
if (late_time_init)
late_time_init();
calibrate_delay();
pidmap_init();
anon_vma_init();
- acpi_early_init();
#ifdef CONFIG_X86
if (efi_enabled(EFI_RUNTIME_SERVICES))
efi_enter_virtual_mode();
--
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