#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/mmzone.h>
#include <linux/export.h>
#include <linux/nodemask.h>
#include <linux/numa_memblks.h>
#include <linux/swap.h>
#include <linux/memblock.h>
#include <linux/pfn.h>
#include <linux/acpi.h>
#include <linux/efi.h>
#include <linux/irq.h>
#include <linux/pci.h>
#include <asm/bootinfo.h>
#include <asm/loongson.h>
#include <asm/numa.h>
#include <asm/page.h>
#include <asm/pgalloc.h>
#include <asm/sections.h>
#include <asm/time.h>
int numa_off;
cpumask_t cpus_on_node[MAX_NUMNODES];
cpumask_t phys_cpus_on_node[MAX_NUMNODES];
EXPORT_SYMBOL(cpus_on_node);
s16 __cpuid_to_node[CONFIG_NR_CPUS] = {
[0 ... CONFIG_NR_CPUS - 1] = NUMA_NO_NODE
};
EXPORT_SYMBOL(__cpuid_to_node);
#ifdef CONFIG_HAVE_SETUP_PER_CPU_AREA
unsigned long __per_cpu_offset[NR_CPUS] __read_mostly;
EXPORT_SYMBOL(__per_cpu_offset);
static int __init pcpu_cpu_to_node(int cpu)
{
return early_cpu_to_node(cpu);
}
static int __init pcpu_cpu_distance(unsigned int from, unsigned int to)
{
if (early_cpu_to_node(from) == early_cpu_to_node(to))
return LOCAL_DISTANCE;
else
return REMOTE_DISTANCE;
}
void __init pcpu_populate_pte(unsigned long addr)
{
populate_kernel_pte(addr);
}
void __init setup_per_cpu_areas(void)
{
unsigned long delta;
unsigned int cpu;
int rc = -EINVAL;
if (pcpu_chosen_fc == PCPU_FC_AUTO) {
if (nr_node_ids >= 8)
pcpu_chosen_fc = PCPU_FC_PAGE;
else
pcpu_chosen_fc = PCPU_FC_EMBED;
}
if (pcpu_chosen_fc != PCPU_FC_PAGE) {
rc = pcpu_embed_first_chunk(PERCPU_MODULE_RESERVE,
PERCPU_DYNAMIC_RESERVE, PMD_SIZE,
pcpu_cpu_distance, pcpu_cpu_to_node);
if (rc < 0)
pr_warn("%s allocator failed (%d), falling back to page size\n",
pcpu_fc_names[pcpu_chosen_fc], rc);
}
if (rc < 0)
rc = pcpu_page_first_chunk(PERCPU_MODULE_RESERVE, pcpu_cpu_to_node);
if (rc < 0)
panic("cannot initialize percpu area (err=%d)", rc);
delta = (unsigned long)pcpu_base_addr - (unsigned long)__per_cpu_start;
for_each_possible_cpu(cpu)
__per_cpu_offset[cpu] = delta + pcpu_unit_offsets[cpu];
}
#endif
int early_cpu_to_node(int cpu)
{
int physid = cpu_logical_map(cpu);
if (physid < 0)
return NUMA_NO_NODE;
return __cpuid_to_node[physid];
}
void __init early_numa_add_cpu(int cpuid, s16 node)
{
int cpu = __cpu_number_map[cpuid];
if (cpu < 0)
return;
cpumask_set_cpu(cpu, &cpus_on_node[node]);
cpumask_set_cpu(cpuid, &phys_cpus_on_node[node]);
}
void numa_add_cpu(unsigned int cpu)
{
int nid = cpu_to_node(cpu);
cpumask_set_cpu(cpu, &cpus_on_node[nid]);
}
void numa_remove_cpu(unsigned int cpu)
{
int nid = cpu_to_node(cpu);
cpumask_clear_cpu(cpu, &cpus_on_node[nid]);
}
static void __init node_mem_init(unsigned int node)
{
unsigned long start_pfn, end_pfn;
unsigned long node_addrspace_offset;
node_addrspace_offset = nid_to_addrbase(node);
pr_info("Node%d's addrspace_offset is 0x%lx\n",
node, node_addrspace_offset);
get_pfn_range_for_nid(node, &start_pfn, &end_pfn);
pr_info("Node%d: start_pfn=0x%lx, end_pfn=0x%lx\n",
node, start_pfn, end_pfn);
alloc_node_data(node);
}
#ifdef CONFIG_ACPI_NUMA
static unsigned long num_physpages;
static void __init info_node_memblock(void)
{
u32 mem_type;
u64 mem_end, mem_start, mem_size;
efi_memory_desc_t *md;
for_each_efi_memory_desc(md) {
mem_type = md->type;
mem_start = md->phys_addr;
mem_size = md->num_pages << EFI_PAGE_SHIFT;
mem_end = mem_start + mem_size;
switch (mem_type) {
case EFI_LOADER_CODE:
case EFI_LOADER_DATA:
case EFI_BOOT_SERVICES_CODE:
case EFI_BOOT_SERVICES_DATA:
case EFI_PERSISTENT_MEMORY:
case EFI_CONVENTIONAL_MEMORY:
num_physpages += (mem_size >> PAGE_SHIFT);
pr_info("Node%d: mem_type:%d, mem_start:0x%llx, mem_size:0x%llx Bytes\n",
(u32)pa_to_nid(mem_start), mem_type, mem_start, mem_size);
pr_info(" start_pfn:0x%llx, end_pfn:0x%llx, num_physpages:0x%lx\n",
mem_start >> PAGE_SHIFT, mem_end >> PAGE_SHIFT, num_physpages);
break;
case EFI_PAL_CODE:
case EFI_UNUSABLE_MEMORY:
case EFI_ACPI_RECLAIM_MEMORY:
num_physpages += (mem_size >> PAGE_SHIFT);
pr_info("Node%d: mem_type:%d, mem_start:0x%llx, mem_size:0x%llx Bytes\n",
(u32)pa_to_nid(mem_start), mem_type, mem_start, mem_size);
pr_info(" start_pfn:0x%llx, end_pfn:0x%llx, num_physpages:0x%lx\n",
mem_start >> PAGE_SHIFT, mem_end >> PAGE_SHIFT, num_physpages);
fallthrough;
case EFI_RESERVED_TYPE:
case EFI_RUNTIME_SERVICES_CODE:
case EFI_RUNTIME_SERVICES_DATA:
case EFI_MEMORY_MAPPED_IO:
case EFI_MEMORY_MAPPED_IO_PORT_SPACE:
pr_info("Resvd: mem_type:%d, mem_start:0x%llx, mem_size:0x%llx Bytes\n",
mem_type, mem_start, mem_size);
break;
}
}
}
static int __init fake_numa_init(void)
{
phys_addr_t start = memblock_start_of_DRAM();
phys_addr_t end = memblock_end_of_DRAM() - 1;
node_set(0, numa_nodes_parsed);
pr_info("Faking a node at [mem %pap-%pap]\n", &start, &end);
return numa_add_memblk(0, start, end + 1);
}
int __init init_numa_memory(void)
{
int i;
int ret;
int node;
for (i = 0; i < NR_CPUS; i++)
set_cpuid_to_node(i, NUMA_NO_NODE);
if (!acpi_disabled)
ret = numa_memblks_init(acpi_numa_init, false);
else
ret = numa_memblks_init(fake_numa_init, false);
if (ret < 0)
return ret;
info_node_memblock();
if (!memblock_validate_numa_coverage(SZ_1M))
return -EINVAL;
for_each_node_mask(node, node_possible_map) {
node_mem_init(node);
node_set_online(node);
}
max_pfn = PFN_DOWN(memblock_end_of_DRAM());
max_low_pfn = min(PFN_DOWN(HIGHMEM_START), max_pfn);
setup_nr_node_ids();
loongson_sysconf.nr_nodes = nr_node_ids;
loongson_sysconf.cores_per_node = cpumask_weight(&phys_cpus_on_node[0]);
return 0;
}
#endif
int pcibus_to_node(struct pci_bus *bus)
{
return dev_to_node(&bus->dev);
}
EXPORT_SYMBOL(pcibus_to_node);
