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From:   Jia He <hejianet@gmail.com>
To:     Russell King <linux@armlinux.org.uk>,
        Andrew Morton <akpm@linux-foundation.org>,
        Michal Hocko <mhocko@suse.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Mel Gorman <mgorman@suse.de>,
        Will Deacon <will.deacon@arm.com>,
        Mark Rutland <mark.rutland@arm.com>,
        "H. Peter Anvin" <hpa@zytor.com>
Cc:     Pavel Tatashin <pasha.tatashin@oracle.com>,
        Daniel Jordan <daniel.m.jordan@oracle.com>,
        AKASHI Takahiro <takahiro.akashi@linaro.org>,
        Gioh Kim <gi-oh.kim@profitbricks.com>,
        Steven Sistare <steven.sistare@oracle.com>,
        Daniel Vacek <neelx@redhat.com>,
        Eugeniu Rosca <erosca@de.adit-jv.com>,
        Vlastimil Babka <vbabka@suse.cz>, linux-kernel@vger.kernel.org,
        linux-mm@kvack.org, James Morse <james.morse@arm.com>,
        Ard Biesheuvel <ard.biesheuvel@linaro.org>,
        Steve Capper <steve.capper@arm.com>,
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        Ingo Molnar <mingo@redhat.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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        Philippe Ombredanne <pombredanne@nexb.com>,
        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>, richard.weiyang@gmail.com,
        Jia He <hejianet@gmail.com>, Jia He <jia.he@hxt-semitech.com>
Subject: [PATCH v10 1/6] arm: arm64: introduce CONFIG_HAVE_MEMBLOCK_PFN_VALID
Date:   Fri,  6 Jul 2018 16:14:15 +0800
Message-Id: <1530864860-7671-2-git-send-email-hejianet@gmail.com>
In-Reply-To: <1530864860-7671-1-git-send-email-hejianet@gmail.com>
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Make CONFIG_HAVE_MEMBLOCK_PFN_VALID a new config option so it can move
memblock_next_valid_pfn to generic code file. All the latter optimizations
are based on this config.

The memblock initialization time on arm/arm64 can benefit from this.

Signed-off-by: Jia He <jia.he@hxt-semitech.com>
Reviewed-by: Pavel Tatashin <pasha.tatashin@oracle.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 843edfd..7ea2636 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1642,6 +1642,10 @@ 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 42c090c..26d75f4 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -778,6 +778,10 @@ 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 94af022..28fcf54 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
 
-- 
1.8.3.1