3de9c42d02
NUMA enabled kernel on FDT based machine fails to boot because CPUs
are all in NUMA_NO_NODE and mm subsystem won't accept that.
Fix by adding them to default NUMA node at FDT parsing phase and move
numa_add_cpu(0) to a later point.
Cc: stable@vger.kernel.org
Fixes: 88d4d957ed ("LoongArch: Add FDT booting support from efi system table")
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
69 lines
1.5 KiB
C
69 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Author: Jianmin Lv <lvjianmin@loongson.cn>
|
|
* Huacai Chen <chenhuacai@loongson.cn>
|
|
*
|
|
* Copyright (C) 2020-2022 Loongson Technology Corporation Limited
|
|
*/
|
|
|
|
#ifndef _ASM_LOONGARCH_NUMA_H
|
|
#define _ASM_LOONGARCH_NUMA_H
|
|
|
|
#include <linux/nodemask.h>
|
|
|
|
#define NODE_ADDRSPACE_SHIFT 44
|
|
|
|
#define pa_to_nid(addr) (((addr) & 0xf00000000000) >> NODE_ADDRSPACE_SHIFT)
|
|
#define nid_to_addrbase(nid) (_ULCAST_(nid) << NODE_ADDRSPACE_SHIFT)
|
|
|
|
#ifdef CONFIG_NUMA
|
|
|
|
extern int numa_off;
|
|
extern s16 __cpuid_to_node[CONFIG_NR_CPUS];
|
|
extern nodemask_t numa_nodes_parsed __initdata;
|
|
|
|
struct numa_memblk {
|
|
u64 start;
|
|
u64 end;
|
|
int nid;
|
|
};
|
|
|
|
#define NR_NODE_MEMBLKS (MAX_NUMNODES*2)
|
|
struct numa_meminfo {
|
|
int nr_blks;
|
|
struct numa_memblk blk[NR_NODE_MEMBLKS];
|
|
};
|
|
|
|
extern int __init numa_add_memblk(int nodeid, u64 start, u64 end);
|
|
|
|
extern void __init early_numa_add_cpu(int cpuid, s16 node);
|
|
extern void numa_add_cpu(unsigned int cpu);
|
|
extern void numa_remove_cpu(unsigned int cpu);
|
|
|
|
static inline void numa_clear_node(int cpu)
|
|
{
|
|
}
|
|
|
|
static inline void set_cpuid_to_node(int cpuid, s16 node)
|
|
{
|
|
__cpuid_to_node[cpuid] = node;
|
|
}
|
|
|
|
extern int early_cpu_to_node(int cpu);
|
|
|
|
#else
|
|
|
|
static inline void early_numa_add_cpu(int cpuid, s16 node) { }
|
|
static inline void numa_add_cpu(unsigned int cpu) { }
|
|
static inline void numa_remove_cpu(unsigned int cpu) { }
|
|
static inline void set_cpuid_to_node(int cpuid, s16 node) { }
|
|
|
|
static inline int early_cpu_to_node(int cpu)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_NUMA */
|
|
|
|
#endif /* _ASM_LOONGARCH_NUMA_H */
|