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arch, mm: move definition of node_data to generic code

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Every architecture that supports NUMA defines node_data in the same way:

	struct pglist_data *node_data[MAX_NUMNODES];

No reason to keep multiple copies of this definition and its forward
declarations, especially when such forward declaration is the only thing
in include/asm/mmzone.h for many architectures.

Add definition and declaration of node_data to generic code and drop
architecture-specific versions.

Link: https://lkml.kernel.org/r/20240807064110.1003856-8-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Davidlohr Bueso <dave@stgolabs.net>
Tested-by: Zi Yan <ziy@nvidia.com> # for x86_64 and arm64
Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> [arm64 + CXL via QEMU]
Acked-by: Dan Williams <dan.j.williams@intel.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Rob Herring (Arm) <robh@kernel.org>
Cc: Samuel Holland <samuel.holland@sifive.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Mike Rapoport (Microsoft) 2024-08-07 09:40:51 +03:00 committed by Andrew Morton
parent 3ac9999c5d
commit 46bcce5031
32 changed files with 22 additions and 144 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm64/include/asm/Kbuild
View File

@ -9,6 +9,7 @@ syscall-y += unistd_compat_32.h
generic-y += early_ioremap.h
generic-y += mcs_spinlock.h
generic-y += mmzone.h
generic-y += qrwlock.h
generic-y += qspinlock.h
generic-y += parport.h

13
arch/arm64/include/asm/mmzone.h
View File

@ -1,13 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_MMZONE_H
#define __ASM_MMZONE_H
#ifdef CONFIG_NUMA
#include <asm/numa.h>
extern struct pglist_data *node_data[];
#define NODE_DATA(nid) (node_data[(nid)])
#endif /* CONFIG_NUMA */
#endif /* __ASM_MMZONE_H */

1
arch/arm64/include/asm/topology.h
View File

@ -5,6 +5,7 @@
#include <linux/cpumask.h>
#ifdef CONFIG_NUMA
#include <asm/numa.h>
struct pci_bus;
int pcibus_to_node(struct pci_bus *bus);

1
arch/loongarch/include/asm/Kbuild
View File

@ -9,5 +9,6 @@ generic-y += qrwlock.h
generic-y += qspinlock.h
generic-y += user.h
generic-y += ioctl.h
generic-y += mmzone.h
generic-y += statfs.h
generic-y += param.h

16
arch/loongarch/include/asm/mmzone.h
View File

@ -1,16 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Author: Huacai Chen (chenhuacai@loongson.cn)
* Copyright (C) 2020-2022 Loongson Technology Corporation Limited
*/
#ifndef _ASM_MMZONE_H_
#define _ASM_MMZONE_H_
#include <asm/page.h>
#include <asm/numa.h>
extern struct pglist_data *node_data[];
#define NODE_DATA(nid) (node_data[(nid)])
#endif /* _ASM_MMZONE_H_ */

1
arch/loongarch/include/asm/topology.h
View File

@ -8,6 +8,7 @@
#include <linux/smp.h>
#ifdef CONFIG_NUMA
#include <asm/numa.h>
extern cpumask_t cpus_on_node[];

3
arch/loongarch/kernel/numa.c
View File

@ -27,10 +27,7 @@
#include <asm/time.h>
int numa_off;
struct pglist_data *node_data[MAX_NUMNODES];
unsigned char node_distances[MAX_NUMNODES][MAX_NUMNODES];
EXPORT_SYMBOL(node_data);
EXPORT_SYMBOL(node_distances);
static struct numa_meminfo numa_meminfo;

4
arch/mips/include/asm/mach-ip27/mmzone.h
View File

@ -24,8 +24,4 @@ extern struct node_data *__node_data[];
#define hub_data(n) (&__node_data[(n)]->hub)
extern struct pglist_data *node_data[];
#define NODE_DATA(nid) (node_data[nid])
#endif /* _ASM_MACH_MMZONE_H */

4
arch/mips/include/asm/mach-loongson64/mmzone.h
View File

@ -14,10 +14,6 @@
#define pa_to_nid(addr) (((addr) & 0xf00000000000) >> NODE_ADDRSPACE_SHIFT)
#define nid_to_addrbase(nid) ((unsigned long)(nid) << NODE_ADDRSPACE_SHIFT)
extern struct pglist_data *node_data[];
#define NODE_DATA(n) (node_data[n])
extern void __init prom_init_numa_memory(void);
#endif /* _ASM_MACH_MMZONE_H */

2
arch/mips/loongson64/numa.c
View File

@ -29,8 +29,6 @@
unsigned char __node_distances[MAX_NUMNODES][MAX_NUMNODES];
EXPORT_SYMBOL(__node_distances);
struct pglist_data *node_data[MAX_NUMNODES];
EXPORT_SYMBOL(node_data);
cpumask_t __node_cpumask[MAX_NUMNODES];
EXPORT_SYMBOL(__node_cpumask);

3
arch/mips/sgi-ip27/ip27-memory.c
View File

@ -34,9 +34,6 @@
#define SLOT_PFNSHIFT (SLOT_SHIFT - PAGE_SHIFT)
#define PFN_NASIDSHFT (NASID_SHFT - PAGE_SHIFT)
struct pglist_data *node_data[MAX_NUMNODES];
EXPORT_SYMBOL(node_data);
struct node_data *__node_data[MAX_NUMNODES];
EXPORT_SYMBOL(__node_data);

6
arch/powerpc/include/asm/mmzone.h
View File

@ -20,12 +20,6 @@
#ifdef CONFIG_NUMA
extern struct pglist_data *node_data[];
/*
* Return a pointer to the node data for node n.
*/
#define NODE_DATA(nid) (node_data[nid])
/*
* Following are specific to this numa platform.
*/

2
arch/powerpc/mm/numa.c
View File

@ -43,11 +43,9 @@ static char *cmdline __initdata;
int numa_cpu_lookup_table[NR_CPUS];
cpumask_var_t node_to_cpumask_map[MAX_NUMNODES];
struct pglist_data *node_data[MAX_NUMNODES];
EXPORT_SYMBOL(numa_cpu_lookup_table);
EXPORT_SYMBOL(node_to_cpumask_map);
EXPORT_SYMBOL(node_data);
static int primary_domain_index;
static int n_mem_addr_cells, n_mem_size_cells;

1
arch/riscv/include/asm/Kbuild
View File

@ -5,6 +5,7 @@ syscall-y += syscall_table_64.h
generic-y += early_ioremap.h
generic-y += flat.h
generic-y += kvm_para.h
generic-y += mmzone.h
generic-y += parport.h
generic-y += spinlock.h
generic-y += spinlock_types.h

13
arch/riscv/include/asm/mmzone.h
View File

@ -1,13 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_MMZONE_H
#define __ASM_MMZONE_H
#ifdef CONFIG_NUMA
#include <asm/numa.h>
extern struct pglist_data *node_data[];
#define NODE_DATA(nid) (node_data[(nid)])
#endif /* CONFIG_NUMA */
#endif /* __ASM_MMZONE_H */

4
arch/riscv/include/asm/topology.h
View File

@ -4,6 +4,10 @@
#include <linux/arch_topology.h>
#ifdef CONFIG_NUMA
#include <asm/numa.h>
#endif
/* Replace task scheduler's default frequency-invariant accounting */
#define arch_scale_freq_tick topology_scale_freq_tick
#define arch_set_freq_scale topology_set_freq_scale

1
arch/s390/include/asm/Kbuild
View File

@ -7,3 +7,4 @@ generated-y += unistd_nr.h
generic-y += asm-offsets.h
generic-y += kvm_types.h
generic-y += mcs_spinlock.h
generic-y += mmzone.h

17
arch/s390/include/asm/mmzone.h
View File

@ -1,17 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* NUMA support for s390
*
* Copyright IBM Corp. 2015
*/
#ifndef _ASM_S390_MMZONE_H
#define _ASM_S390_MMZONE_H
#ifdef CONFIG_NUMA
extern struct pglist_data *node_data[];
#define NODE_DATA(nid) (node_data[nid])
#endif /* CONFIG_NUMA */
#endif /* _ASM_S390_MMZONE_H */

3
arch/s390/kernel/numa.c
View File

@ -14,9 +14,6 @@
#include <linux/node.h>
#include <asm/numa.h>
struct pglist_data *node_data[MAX_NUMNODES];
EXPORT_SYMBOL(node_data);
void __init numa_setup(void)
{
int nid;

3
arch/sh/include/asm/mmzone.h
View File

@ -5,9 +5,6 @@
#ifdef CONFIG_NUMA
#include <linux/numa.h>
extern struct pglist_data *node_data[];
#define NODE_DATA(nid) (node_data[nid])
static inline int pfn_to_nid(unsigned long pfn)
{
int nid;

3
arch/sh/mm/numa.c
View File

@ -14,9 +14,6 @@
#include <linux/pfn.h>
#include <asm/sections.h>
struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
EXPORT_SYMBOL_GPL(node_data);
/*
* On SH machines the conventional approach is to stash system RAM
* in node 0, and other memory blocks in to node 1 and up, ordered by

4
arch/sparc/include/asm/mmzone.h
View File

@ -6,10 +6,6 @@
#include <linux/cpumask.h>
extern struct pglist_data *node_data[];
#define NODE_DATA(nid) (node_data[nid])
extern int numa_cpu_lookup_table[];
extern cpumask_t numa_cpumask_lookup_table[];

2
arch/sparc/mm/init_64.c
View File

@ -1115,11 +1115,9 @@ static void init_node_masks_nonnuma(void)
}
#ifdef CONFIG_NUMA
struct pglist_data *node_data[MAX_NUMNODES];
EXPORT_SYMBOL(numa_cpu_lookup_table);
EXPORT_SYMBOL(numa_cpumask_lookup_table);
EXPORT_SYMBOL(node_data);
static int scan_pio_for_cfg_handle(struct mdesc_handle *md, u64 pio,
u32 cfg_handle)

1
arch/x86/include/asm/Kbuild
View File

@ -11,3 +11,4 @@ generated-y += xen-hypercalls.h
generic-y += early_ioremap.h
generic-y += mcs_spinlock.h
generic-y += mmzone.h

6
arch/x86/include/asm/mmzone.h
View File

@ -1,6 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifdef CONFIG_X86_32
# include <asm/mmzone_32.h>
#else
# include <asm/mmzone_64.h>
#endif

17
arch/x86/include/asm/mmzone_32.h
View File

@ -1,17 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Written by Pat Gaughen (gone@us.ibm.com) Mar 2002
*
*/
#ifndef _ASM_X86_MMZONE_32_H
#define _ASM_X86_MMZONE_32_H
#include <asm/smp.h>
#ifdef CONFIG_NUMA
extern struct pglist_data *node_data[];
#define NODE_DATA(nid) (node_data[nid])
#endif /* CONFIG_NUMA */
#endif /* _ASM_X86_MMZONE_32_H */

18
arch/x86/include/asm/mmzone_64.h
View File

@ -1,18 +0,0 @@
/* SPDX-License-Identifier: GPL-2.0 */
/* K8 NUMA support */
/* Copyright 2002,2003 by Andi Kleen, SuSE Labs */
/* 2.5 Version loosely based on the NUMAQ Code by Pat Gaughen. */
#ifndef _ASM_X86_MMZONE_64_H
#define _ASM_X86_MMZONE_64_H
#ifdef CONFIG_NUMA
#include <linux/mmdebug.h>
#include <asm/smp.h>
extern struct pglist_data *node_data[];
#define NODE_DATA(nid) (node_data[nid])
#endif
#endif /* _ASM_X86_MMZONE_64_H */

3
arch/x86/mm/numa.c
View File

@ -24,9 +24,6 @@
int numa_off;
nodemask_t numa_nodes_parsed __initdata;
struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
EXPORT_SYMBOL(node_data);
static struct numa_meminfo numa_meminfo __initdata_or_meminfo;
static struct numa_meminfo numa_reserved_meminfo __initdata_or_meminfo;

2
drivers/base/arch_numa.c
View File

@ -15,8 +15,6 @@
#include <asm/sections.h>
struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
EXPORT_SYMBOL(node_data);
nodemask_t numa_nodes_parsed __initdata;
static int cpu_to_node_map[NR_CPUS] = { [0 ... NR_CPUS-1] = NUMA_NO_NODE };

5
include/asm-generic/mmzone.h Normal file
View File

@ -0,0 +1,5 @@
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_GENERIC_MMZONE_H
#define _ASM_GENERIC_MMZONE_H
#endif

3
include/linux/numa.h
View File

@ -30,6 +30,9 @@ static inline bool numa_valid_node(int nid)
#ifdef CONFIG_NUMA
#include <asm/sparsemem.h>
extern struct pglist_data *node_data[];
#define NODE_DATA(nid) (node_data[nid])
/* Generic implementation available */
int numa_nearest_node(int node, unsigned int state);

3
mm/numa.c
View File

@ -3,6 +3,9 @@
#include <linux/printk.h>
#include <linux/numa.h>
struct pglist_data *node_data[MAX_NUMNODES];
EXPORT_SYMBOL(node_data);
/* Stub functions: */
#ifndef memory_add_physaddr_to_nid