x86: fix DMI on EFI

commit ff0c0874905fb312ca1491bbdac2653b0b48c20b upstream.

Impact: reactivate DMI quirks on EFI hardware

DMI tables are loaded by EFI, so the dmi calls must happen after
efi_init() and not before.

Currently Apple hardware uses DMI to determine the framebuffer mappings
for efifb. Without DMI working you also have no video on MacBook Pro.

This patch resolves the DMI issue for EFI hardware (DMI is now properly
detected at boot), and additionally efifb now loads on Apple hardware
(i.e. video works).

Signed-off-by: Brian Maly <bmaly@redhat>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Cc: ying.huang@intel.com
LKML-Reference: <49ADEDA3.1030406@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 6d5a3c43968a28fad77500a31ee283908b45fb21..27813313a20e2b5685d54edcc491a269ab52c72f 100644 (file)
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -730,6 +730,9 @@ void __init setup_arch(char **cmdline_p)
 
        finish_e820_parsing();
 
+       if (efi_enabled)
+               efi_init();
+
        dmi_scan_machine();
 
        dmi_check_system(bad_bios_dmi_table);
@@ -743,8 +746,6 @@ void __init setup_arch(char **cmdline_p)
        insert_resource(&iomem_resource, &data_resource);
        insert_resource(&iomem_resource, &bss_resource);
 
-       if (efi_enabled)
-               efi_init();
 
 #ifdef CONFIG_X86_32
        if (ppro_with_ram_bug()) {