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From: Dan Williams <dan.j.williams@intel.com>
To: linux-nvdimm@lists.01.org
Cc: Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Andy Lutomirski <luto@kernel.org>,
	Peter Zijlstra <peterz@infradead.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	vishal.l.verma@intel.com, ard.biesheuvel@linaro.org,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	linux-acpi@vger.kernel.org, hch@lst.de,
	joao.m.martins@oracle.com
Subject: [PATCH v2 06/22] x86: Move NUMA_KEEP_MEMINFO and related definition to x86-internals
Date: Sun, 12 Jul 2020 09:26:38 -0700
Message-ID: <159457119816.754248.17444705191598115716.stgit@dwillia2-desk3.amr.corp.intel.com> (raw)
In-Reply-To: <159457116473.754248.7879464730875147365.stgit@dwillia2-desk3.amr.corp.intel.com>

x86 is the lone architecture that uses numa_meminfo. Move and rename
NUMA_KEEP_MEMINFO from the core mm/Kconfig to X86_NUMA_KEEP_MEMINFO in
arch/x86/mm/Kconfig. This is in preparation for defining a generic
memblock based implementation of memory_add_physaddr_to_nid() and
phys_to_target_node().

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: x86@kernel.org
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 arch/x86/Kconfig            |    7 ++++++-
 arch/x86/mm/numa.c          |    2 +-
 arch/x86/mm/numa_internal.h |    7 +++++++
 include/linux/numa.h        |    7 -------
 mm/Kconfig                  |    5 -----
 5 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 6a0cc524882d..fc9264ea4041 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1560,6 +1560,11 @@ config NUMA
 
 	  Otherwise, you should say N.
 
+# Keep NUMA mapping infrastructure post-init.
+config X86_NUMA_KEEP_MEMINFO
+	def_bool MEMORY_HOTPLUG
+	depends on NUMA
+
 config AMD_NUMA
 	def_bool y
 	prompt "Old style AMD Opteron NUMA detection"
@@ -1640,7 +1645,7 @@ config X86_PMEM_LEGACY
 	depends on PHYS_ADDR_T_64BIT
 	depends on BLK_DEV
 	select X86_PMEM_LEGACY_DEVICE
-	select NUMA_KEEP_MEMINFO if NUMA
+	select X86_NUMA_KEEP_MEMINFO if NUMA
 	select LIBNVDIMM
 	help
 	  Treat memory marked using the non-standard e820 type of 12 as used
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 44fdf06d497e..311d22cf8ac2 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -893,7 +893,7 @@ EXPORT_SYMBOL(cpumask_of_node);
 
 #endif	/* !CONFIG_DEBUG_PER_CPU_MAPS */
 
-#ifdef CONFIG_NUMA_KEEP_MEMINFO
+#ifdef CONFIG_X86_NUMA_KEEP_MEMINFO
 static int meminfo_to_nid(struct numa_meminfo *mi, u64 start)
 {
 	int i;
diff --git a/arch/x86/mm/numa_internal.h b/arch/x86/mm/numa_internal.h
index 86860f279662..7b843414335f 100644
--- a/arch/x86/mm/numa_internal.h
+++ b/arch/x86/mm/numa_internal.h
@@ -11,6 +11,13 @@ struct numa_memblk {
 	int			nid;
 };
 
+/* optionally keep NUMA memory info available post init */
+#ifdef CONFIG_X86_NUMA_KEEP_MEMINFO
+#define __initdata_or_meminfo
+#else
+#define __initdata_or_meminfo __initdata
+#endif
+
 struct numa_meminfo {
 	int			nr_blks;
 	struct numa_memblk	blk[NR_NODE_MEMBLKS];
diff --git a/include/linux/numa.h b/include/linux/numa.h
index a42df804679e..5d25c5de1322 100644
--- a/include/linux/numa.h
+++ b/include/linux/numa.h
@@ -13,13 +13,6 @@
 
 #define	NUMA_NO_NODE	(-1)
 
-/* optionally keep NUMA memory info available post init */
-#ifdef CONFIG_NUMA_KEEP_MEMINFO
-#define __initdata_or_meminfo
-#else
-#define __initdata_or_meminfo __initdata
-#endif
-
 #ifdef CONFIG_NUMA
 /* Generic implementation available */
 int numa_map_to_online_node(int node);
diff --git a/mm/Kconfig b/mm/Kconfig
index f2104cc0d35c..0051f735ad98 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -139,10 +139,6 @@ config HAVE_FAST_GUP
 config ARCH_KEEP_MEMBLOCK
 	bool
 
-# Keep arch NUMA mapping infrastructure post-init.
-config NUMA_KEEP_MEMINFO
-	bool
-
 config MEMORY_ISOLATION
 	bool
 
@@ -159,7 +155,6 @@ config MEMORY_HOTPLUG
 	depends on SPARSEMEM || X86_64_ACPI_NUMA
 	depends on ARCH_ENABLE_MEMORY_HOTPLUG
 	depends on 64BIT || BROKEN
-	select NUMA_KEEP_MEMINFO if NUMA
 
 config MEMORY_HOTPLUG_SPARSE
 	def_bool y


  parent reply index

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-12 16:26 [PATCH v2 00/22] device-dax: Support sub-dividing soft-reserved ranges Dan Williams
2020-07-12 16:26 ` [PATCH v2 01/22] x86/numa: Cleanup configuration dependent command-line options Dan Williams
2020-07-12 16:26 ` [PATCH v2 02/22] x86/numa: Add 'nohmat' option Dan Williams
2020-07-12 16:58   ` Randy Dunlap
2020-07-12 16:26 ` [PATCH v2 03/22] efi/fake_mem: Arrange for a resource entry per efi_fake_mem instance Dan Williams
2020-07-12 16:26 ` [PATCH v2 04/22] ACPI: HMAT: Refactor hmat_register_target_device to hmem_register_device Dan Williams
2020-07-12 16:26 ` [PATCH v2 05/22] resource: Report parent to walk_iomem_res_desc() callback Dan Williams
2020-07-12 16:26 ` Dan Williams [this message]
2020-07-12 16:26 ` [PATCH v2 07/22] numa: Introduce a generic memory_add_physaddr_to_nid() Dan Williams
2020-07-13  6:58   ` Mike Rapoport
2020-07-13 15:42     ` Dan Williams
2020-07-12 16:26 ` [PATCH v2 08/22] memblock: Introduce a generic phys_addr_to_target_node() Dan Williams
2020-07-13  7:03   ` Mike Rapoport
2020-07-13 15:48     ` Dan Williams
2020-07-14  1:36       ` Justin He
2020-07-12 16:26 ` [PATCH v2 09/22] arm64: Convert to generic memblock for numa-info Dan Williams
2020-07-12 16:26 ` [PATCH v2 10/22] ACPI: HMAT: Attach a device for each soft-reserved range Dan Williams
2020-07-12 16:27 ` [PATCH v2 11/22] device-dax: Drop the dax_region.pfn_flags attribute Dan Williams
2020-07-12 16:27 ` [PATCH v2 12/22] device-dax: Move instance creation parameters to 'struct dev_dax_data' Dan Williams
2020-07-12 16:27 ` [PATCH v2 13/22] device-dax: Make pgmap optional for instance creation Dan Williams
2020-07-12 16:27 ` [PATCH v2 14/22] device-dax: Kill dax_kmem_res Dan Williams
2020-07-12 16:27 ` [PATCH v2 15/22] device-dax: Add an allocation interface for device-dax instances Dan Williams
2020-07-12 16:27 ` [PATCH v2 16/22] device-dax: Introduce 'seed' devices Dan Williams
2020-07-12 16:27 ` [PATCH v2 17/22] drivers/base: Make device_find_child_by_name() compatible with sysfs inputs Dan Williams
2020-07-12 17:09   ` Greg Kroah-Hartman
2020-07-13 15:39     ` Dan Williams
2020-07-13 15:52       ` Greg Kroah-Hartman
2020-07-13 16:09         ` Dan Williams
2020-07-13 16:12           ` Greg Kroah-Hartman
2020-07-13 16:36             ` Dan Williams
2020-07-12 16:27 ` [PATCH v2 18/22] device-dax: Add resize support Dan Williams
2020-07-12 16:27 ` [PATCH v2 19/22] mm/memremap_pages: Convert to 'struct range' Dan Williams
2020-07-13 16:36   ` Ralph Campbell
2020-07-13 16:54     ` Dan Williams
2020-07-12 16:27 ` [PATCH v2 20/22] mm/memremap_pages: Support multiple ranges per invocation Dan Williams
2020-07-12 16:27 ` [PATCH v2 21/22] device-dax: Add dis-contiguous resource support Dan Williams
2020-07-12 16:28 ` [PATCH v2 22/22] device-dax: Introduce 'mapping' devices Dan Williams
2020-07-16 13:18   ` Joao Martins
2020-07-16 16:00     ` Dan Williams
2020-07-16 19:04       ` Joao Martins

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