x86/of: Move the x86_flattree_get_config() call out of x86_dtb_init()

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Fetching the device tree configuration before initmem_init() is necessary
to allow the parsing of NUMA node information. However moving the entire
x86_dtb_init() call before initmem_init() is not correct as APIC/IO-APIC enumeration
has to be after initmem_init().

Thus, move the x86_flattree_get_config() call out of x86_dtb_init(),
into setup_arch(), to call it before initmem_init(), and
leave the ACPI/IOAPIC registration sequence as-is.

[ mingo: Updated the changelog for clarity. ]

Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Link: https://lore.kernel.org/r/1692949657-16446-1-git-send-email-ssengar@linux.microsoft.com

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This commit is contained in:

Saurabh Sengar 2023-08-25 00:47:36 -07:00 • committed by Ingo Molnar

parent 24775700ea

commit 0d294c8c4e

3 changed files with 8 additions and 5 deletions

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5

arch/x86/include/asm/prom.h

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6

arch/x86/kernel/devicetree.c

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2

arch/x86/kernel/setup.c

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