diff options
Diffstat (limited to 'include/linux/percpu.h')
| -rw-r--r-- | include/linux/percpu.h | 42 |
1 files changed, 29 insertions, 13 deletions
diff --git a/include/linux/percpu.h b/include/linux/percpu.h index 570fb18de2b..77b86be8ce4 100644 --- a/include/linux/percpu.h +++ b/include/linux/percpu.h @@ -59,6 +59,25 @@ extern void *pcpu_base_addr; extern const int *pcpu_unit_map; +struct pcpu_group_info { + int nr_units; /* aligned # of units */ + unsigned long base_offset; /* base address offset */ + unsigned int *cpu_map; /* unit->cpu map, empty + * entries contain NR_CPUS */ +}; + +struct pcpu_alloc_info { + size_t static_size; + size_t reserved_size; + size_t dyn_size; + size_t unit_size; + size_t atom_size; + size_t alloc_size; + size_t __ai_size; /* internal, don't use */ + int nr_groups; /* 0 if grouping unnecessary */ + struct pcpu_group_info groups[]; +}; + enum pcpu_fc { PCPU_FC_AUTO, PCPU_FC_EMBED, @@ -78,18 +97,17 @@ typedef void (*pcpu_fc_populate_pte_fn_t)(unsigned long addr); typedef int (pcpu_fc_cpu_distance_fn_t)(unsigned int from, unsigned int to); typedef void (*pcpu_fc_map_fn_t)(void *ptr, size_t size, void *addr); -#ifdef CONFIG_NEED_PER_CPU_LPAGE_FIRST_CHUNK -extern int __init pcpu_lpage_build_unit_map( - size_t reserved_size, ssize_t *dyn_sizep, - size_t *unit_sizep, size_t lpage_size, - int *unit_map, +extern struct pcpu_alloc_info * __init pcpu_alloc_alloc_info(int nr_groups, + int nr_units); +extern void __init pcpu_free_alloc_info(struct pcpu_alloc_info *ai); + +extern struct pcpu_alloc_info * __init pcpu_build_alloc_info( + size_t reserved_size, ssize_t dyn_size, + size_t atom_size, pcpu_fc_cpu_distance_fn_t cpu_distance_fn); -#endif -extern size_t __init pcpu_setup_first_chunk( - size_t static_size, size_t reserved_size, - size_t dyn_size, size_t unit_size, - void *base_addr, const int *unit_map); +extern size_t __init pcpu_setup_first_chunk(const struct pcpu_alloc_info *ai, + void *base_addr); #ifdef CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK extern ssize_t __init pcpu_embed_first_chunk( @@ -106,9 +124,7 @@ extern ssize_t __init pcpu_page_first_chunk( #ifdef CONFIG_NEED_PER_CPU_LPAGE_FIRST_CHUNK extern ssize_t __init pcpu_lpage_first_chunk( - size_t reserved_size, size_t dyn_size, - size_t unit_size, size_t lpage_size, - const int *unit_map, int nr_units, + const struct pcpu_alloc_info *ai, pcpu_fc_alloc_fn_t alloc_fn, pcpu_fc_free_fn_t free_fn, pcpu_fc_map_fn_t map_fn); |