From 9c71206d060d4e84896f3bd680319b29fe88b8e8 Mon Sep 17 00:00:00 2001 From: Dou Liyang Date: Wed, 13 Sep 2017 17:17:54 +0800 Subject: 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 Signed-off-by: Dou Liyang Cc: Tony Luck Cc: linux-ia64@vger.kernel.org Cc: bhe@redhat.com Cc: Fenghua Yu Cc: Michael Ellerman Cc: "Rafael J. Wysocki" Cc: Will Deacon Cc: linux-acpi@vger.kernel.org Cc: bp@alien8.de Cc: Lv" Cc: yinghai@kernel.org Cc: linux-arm-kernel@lists.infradead.org Link: https://lkml.kernel.org/r/1505294274-441-1-git-send-email-douly.fnst@cn.fujitsu.com Signed-off-by: Thomas Gleixner --- init/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'init') diff --git a/init/main.c b/init/main.c index 0ee9c6866ada..2fb98a48b6ae 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(); -- cgit v1.2.3