mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-08-27 06:50:37 +00:00
3f12680913
acpi_parse_cfmws() currently adds empty CFMWS ranges to numa_meminfo with the expectation that numa_cleanup_meminfo moves them to numa_reserved_meminfo. There is no need for that indirection when it is known in advance that these unpopulated ranges are meant for numa_reserved_meminfo in support of future hotplug / CXL provisioning. Introduce and use numa_add_reserved_memblk() to add the empty CFMWS ranges directly. Link: https://lkml.kernel.org/r/20250508022719.3941335-1-wangyuquan1236@phytium.com.cn Signed-off-by: Yuquan Wang <wangyuquan1236@phytium.com.cn> Reviewed-by: Alison Schofield <alison.schofield@intel.com> Cc: Bruno Faccini <bfaccini@nvidia.com> Cc: Chen Baozi <chenbaozi@phytium.com.cn> Cc: Dan Williams <dan.j.williams@intel.com> Cc: David Hildenbrand <david@redhat.com> Cc: Haibo Xu <haibo1.xu@intel.com> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Joanthan Cameron <Jonathan.Cameron@huawei.com> Cc: Len Brown <lenb@kernel.org> Cc: Mike Rapoport <rppt@kernel.org> Cc: Robert Richter <rrichter@amd.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
63 lines
1.6 KiB
C
63 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __NUMA_MEMBLKS_H
|
|
#define __NUMA_MEMBLKS_H
|
|
|
|
#ifdef CONFIG_NUMA_MEMBLKS
|
|
#include <linux/types.h>
|
|
|
|
#define NR_NODE_MEMBLKS (MAX_NUMNODES * 2)
|
|
|
|
void __init numa_set_distance(int from, int to, int distance);
|
|
void __init numa_reset_distance(void);
|
|
|
|
struct numa_memblk {
|
|
u64 start;
|
|
u64 end;
|
|
int nid;
|
|
};
|
|
|
|
struct numa_meminfo {
|
|
int nr_blks;
|
|
struct numa_memblk blk[NR_NODE_MEMBLKS];
|
|
};
|
|
|
|
int __init numa_add_memblk(int nodeid, u64 start, u64 end);
|
|
int __init numa_add_reserved_memblk(int nid, u64 start, u64 end);
|
|
void __init numa_remove_memblk_from(int idx, struct numa_meminfo *mi);
|
|
|
|
int __init numa_cleanup_meminfo(struct numa_meminfo *mi);
|
|
|
|
int __init numa_memblks_init(int (*init_func)(void),
|
|
bool memblock_force_top_down);
|
|
|
|
extern int numa_distance_cnt;
|
|
|
|
#ifdef CONFIG_NUMA_EMU
|
|
extern int emu_nid_to_phys[MAX_NUMNODES];
|
|
int numa_emu_cmdline(char *str);
|
|
void __init numa_emu_update_cpu_to_node(int *emu_nid_to_phys,
|
|
unsigned int nr_emu_nids);
|
|
u64 __init numa_emu_dma_end(void);
|
|
void __init numa_emulation(struct numa_meminfo *numa_meminfo,
|
|
int numa_dist_cnt);
|
|
#else
|
|
static inline void numa_emulation(struct numa_meminfo *numa_meminfo,
|
|
int numa_dist_cnt)
|
|
{ }
|
|
static inline int numa_emu_cmdline(char *str)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
#endif /* CONFIG_NUMA_EMU */
|
|
|
|
#ifdef CONFIG_NUMA_KEEP_MEMINFO
|
|
extern int phys_to_target_node(u64 start);
|
|
#define phys_to_target_node phys_to_target_node
|
|
extern int memory_add_physaddr_to_nid(u64 start);
|
|
#define memory_add_physaddr_to_nid memory_add_physaddr_to_nid
|
|
#endif /* CONFIG_NUMA_KEEP_MEMINFO */
|
|
|
|
#endif /* CONFIG_NUMA_MEMBLKS */
|
|
|
|
#endif /* __NUMA_MEMBLKS_H */
|