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From: Jia He <hejianet@gmail.com>
Subject: [PATCH v8 1/6] arm: arm64: introduce CONFIG_HAVE_MEMBLOCK_PFN_VALID
Date: Wed, 11 Apr 2018 00:21:52 -0700
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To: Russell King <linux@armlinux.org.uk>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will.deacon@arm.com>, Mark Rutland <mark.rutland@arm.com>, Ard Biesheuvel <ard.biesheuvel@linaro.org>, Andrew Morton <akpm@linux-foundation.org>, Michal Hocko <mhocko@suse.com>
Cc: Wei Yang <richard.weiyang@gmail.com>, Kees Cook <keescook@chromium.org>, Laura Abbott <labbott@redhat.com>, Vladimir Murzin <vladimir.murzin@arm.com>, Philip Derrin <philip@cog.systems>, AKASHI Takahiro <takahiro.akashi@linaro.org>, James Morse <james.morse@arm.com>, Steve Capper <steve.capper@arm.com>, Pavel Tatashin <pasha.tatashin@oracle.com>, Gioh Kim <gi-oh.kim@profitbricks.com>, Vlastimil Babka <vbabka@suse.cz>, Mel Gorman <mgorman@suse.de>, Johannes Weiner <hannes@cmpxchg.org>, Kemi Wang <kemi.wang@intel.com>, Petr Tesarik <ptesarik@suse.com>, YASUAKI ISHIMATSU <yasu.isimatu@gmail.com>, Andrey Ryabinin <aryabinin@virtuozzo.com>, Nikolay Borisov <nborisov@suse.com>, Daniel Jordan <daniel.m.jordan@oracle.com>, Daniel Vacek <neelx@redhat.com>, Eugeniu Rosca <erosca@de.adit-jv.com>, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Jia He <hejianet@gmail.com>, Jia He <jia.he@hxt-semitech.com>

Make CONFIG_HAVE_MEMBLOCK_PFN_VALID a config option so it can move
memblock_next_valid_pfn to generic code file.

arm/arm64 can benefit from this booting time improvement.

Signed-off-by: Jia He <jia.he@hxt-semitech.com>
---
 arch/arm/Kconfig   | 4 ++++
 arch/arm64/Kconfig | 4 ++++
 mm/Kconfig         | 3 +++
 3 files changed, 11 insertions(+)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 51c8df5..77bc1bb 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1637,6 +1637,10 @@ config ARCH_SELECT_MEMORY_MODEL
 config HAVE_ARCH_PFN_VALID
 	def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
 
+config HAVE_MEMBLOCK_PFN_VALID
+	def_bool y
+	depends on HAVE_ARCH_PFN_VALID
+
 config HAVE_GENERIC_GUP
 	def_bool y
 	depends on ARM_LPAE
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index c9a7e9e..f374203 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -747,6 +747,10 @@ config ARCH_SELECT_MEMORY_MODEL
 config HAVE_ARCH_PFN_VALID
 	def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
 
+config HAVE_MEMBLOCK_PFN_VALID
+	def_bool y
+	depends on HAVE_ARCH_PFN_VALID
+
 config HW_PERF_EVENTS
 	def_bool y
 	depends on ARM_PMU
diff --git a/mm/Kconfig b/mm/Kconfig
index c782e8f..c53ac38 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -137,6 +137,9 @@ config HAVE_MEMBLOCK_NODE_MAP
 config HAVE_MEMBLOCK_PHYS_MAP
 	bool
 
+config HAVE_MEMBLOCK_PFN_VALID
+	bool
+
 config HAVE_GENERIC_GUP
 	bool
 
-- 
2.7.4