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authorDou Liyang <douly.fnst@cn.fujitsu.com>2017-09-13 17:17:54 +0800
committerThomas Gleixner <tglx@linutronix.de>2017-09-27 09:37:41 +0200
commit9c71206d060d4e84896f3bd680319b29fe88b8e8 (patch)
tree85f8dd993dd810fd5afd37316aa89a278ffcbfe7
parentd6ffc6ac83b1f9f12652d89b9cb5bcbfbea7796c (diff)
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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@intel.com> Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com> Cc: Tony Luck <tony.luck@intel.com> Cc: linux-ia64@vger.kernel.org Cc: bhe@redhat.com Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Will Deacon <will.deacon@arm.com> Cc: linux-acpi@vger.kernel.org Cc: bp@alien8.de Cc: Lv" <lv.zheng@intel.com> 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 <tglx@linutronix.de>
-rw-r--r--init/main.c2
1 files changed, 1 insertions, 1 deletions
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();