/* Callback for parsing of the Proximity Domain <-> Memory Area mappings */
void __init
acpi_numa_memory_affinity_init(struct acpi_table_memory_affinity *ma)
{
struct node *nd;
unsigned long start, end;
int node, pxm;
int i;
if (srat_disabled() || ma->flags.enabled == 0)
return;
pxm = ma->proximity_domain;
node = setup_node(pxm);
if (node < 0) {
printk(KERN_ERR "SRAT: Too many proximity domains.\n");
bad_srat();
return;
}
start = ma->base_addr_lo | ((u64)ma->base_addr_hi << 32);
end = start + (ma->length_lo | ((u64)ma->length_hi << 32));
/* It is fine to add this area to the nodes data it will be used later*/
if (ma->flags.hot_pluggable == 1)
printk(KERN_INFO "SRAT: hot plug zone found %lx - %lx \n",
start, end);
i = conflicting_nodes(start, end);
if (i == node) {
printk(KERN_WARNING
"SRAT: Warning: PXM %d (%lx-%lx) overlaps with itself (%Lx-%Lx)\n",
pxm, start, end, nodes[i].start, nodes[i].end);
} else if (i >= 0) {
printk(KERN_ERR
"SRAT: PXM %d (%lx-%lx) overlaps with PXM %d (%Lx-%Lx)\n",
pxm, start, end, node_to_pxm(i),
nodes[i].start, nodes[i].end);
bad_srat();
return;
}
nd = &nodes[node];
if (!node_test_and_set(node, nodes_parsed)) {
nd->start = start;
nd->end = end;
} else {
if (start < nd->start)
nd->start = start;
if (nd->end < end)
nd->end = end;
}
if (!(nd->end & 0xfff))
nd->end--;
printk(KERN_INFO "SRAT: Node %u PXM %u %Lx-%Lx\n", node, pxm,
nd->start, nd->end);
}
/* Callback for parsing of the Proximity Domain <-> Memory Area mappings */
void __init
acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
{
struct bootnode *nd, oldnode;
unsigned long start, end;
int node, pxm;
int i;
if (srat_disabled())
return;
if (ma->header.length != sizeof(struct acpi_srat_mem_affinity)) {
bad_srat();
return;
}
if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
return;
if ((ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) && !save_add_info())
return;
start = ma->base_address;
end = start + ma->length;
pxm = ma->proximity_domain;
node = setup_node(pxm);
if (node < 0) {
printk(KERN_ERR "SRAT: Too many proximity domains.\n");
bad_srat();
return;
}
i = conflicting_nodes(start, end);
if (i == node) {
printk(KERN_WARNING
"SRAT: Warning: PXM %d (%lx-%lx) overlaps with itself (%Lx-%Lx)\n",
pxm, start, end, nodes[i].start, nodes[i].end);
} else if (i >= 0) {
printk(KERN_ERR
"SRAT: PXM %d (%lx-%lx) overlaps with PXM %d (%Lx-%Lx)\n",
pxm, start, end, node_to_pxm(i),
nodes[i].start, nodes[i].end);
bad_srat();
return;
}
nd = &nodes[node];
oldnode = *nd;
if (!node_test_and_set(node, nodes_parsed)) {
nd->start = start;
nd->end = end;
} else {
if (start < nd->start)
nd->start = start;
if (nd->end < end)
nd->end = end;
}
printk(KERN_INFO "SRAT: Node %u PXM %u %Lx-%Lx\n", node, pxm,
nd->start, nd->end);
e820_register_active_regions(node, nd->start >> PAGE_SHIFT,
nd->end >> PAGE_SHIFT);
push_node_boundaries(node, nd->start >> PAGE_SHIFT,
nd->end >> PAGE_SHIFT);
if ((ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) &&
(reserve_hotadd(node, start, end) < 0)) {
/* Ignore hotadd region. Undo damage */
printk(KERN_NOTICE "SRAT: Hotplug region ignored\n");
*nd = oldnode;
if ((nd->start | nd->end) == 0)
node_clear(node, nodes_parsed);
}
}