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Message-Id: <1456959362-2036-5-git-send-email-ddaney.cavm@gmail.com>
Date: Wed, 2 Mar 2016 14:56:00 -0800
From: David Daney <ddaney.cavm@...il.com>
To: Will Deacon <will.deacon@....com>,
linux-arm-kernel@...ts.infradead.org,
Rob Herring <robh+dt@...nel.org>,
Frank Rowand <frowand.list@...il.com>,
Grant Likely <grant.likely@...aro.org>,
Pawel Moll <pawel.moll@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>,
Ganapatrao Kulkarni <gkulkarni@...iumnetworks.com>,
Robert Richter <rrichter@...ium.com>,
Ard Biesheuvel <ard.biesheuvel@...aro.org>,
Matt Fleming <matt@...eblueprint.co.uk>,
Mark Rutland <mark.rutland@....com>,
Catalin Marinas <catalin.marinas@....com>
Cc: linux-efi@...r.kernel.org, linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org, David Daney <david.daney@...ium.com>
Subject: [PATCH v13 4/6] arm64: Move unflatten_device_tree() call earlier.
From: David Daney <david.daney@...ium.com>
In order to extract NUMA information from the device tree, we need to
have the tree in its unflattened form.
Move the call to unflatten_device_tree() into paging_init(). This
puts it before the call to bootmem_init(), which is where the NUMA
information is extracted.
Signed-off-by: David Daney <david.daney@...ium.com>
---
arch/arm64/kernel/setup.c | 7 +++----
arch/arm64/mm/mmu.c | 5 +++++
2 files changed, 8 insertions(+), 4 deletions(-)
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 8119479..feae073 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -328,12 +328,11 @@ void __init setup_arch(char **cmdline_p)
early_ioremap_reset();
- if (acpi_disabled) {
- unflatten_device_tree();
+ if (acpi_disabled)
psci_dt_init();
- } else {
+ else
psci_acpi_init();
- }
+
xen_early_init();
cpu_read_bootcpu_ops();
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 58faeaa..ee6e6b0 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -29,6 +29,8 @@
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/stop_machine.h>
+#include <linux/acpi.h>
+#include <linux/of_fdt.h>
#include <asm/cputype.h>
#include <asm/fixmap.h>
@@ -459,6 +461,9 @@ void __init paging_init(void)
map_mem();
fixup_executable();
+ if (acpi_disabled)
+ unflatten_device_tree();
+
/* allocate the zero page. */
zero_page = early_alloc(PAGE_SIZE);
--
1.8.3.1
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