forked from luck/tmp_suning_uos_patched
x86: move 64-bit NUMA code
Impact: Code movement, no functional change. Move the 64-bit NUMA code from setup_percpu.c to numa_64.c Signed-off-by: Brian Gerst <brgerst@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Brian Gerst
Tejun Heo
parent
0d77e7f04d
commit
6470aff619
@ -74,6 +74,8 @@ static inline const struct cpumask *cpumask_of_node(int node)
|
||||
return &node_to_cpumask_map[node];
|
||||
}
|
||||
|
||||
static inline void setup_node_to_cpumask_map(void) { }
|
||||
|
||||
#else /* CONFIG_X86_64 */
|
||||
|
||||
/* Mappings between node number and cpus on that node. */
|
||||
@ -120,6 +122,8 @@ static inline cpumask_t node_to_cpumask(int node)
|
||||
|
||||
#endif /* !CONFIG_DEBUG_PER_CPU_MAPS */
|
||||
|
||||
extern void setup_node_to_cpumask_map(void);
|
||||
|
||||
/*
|
||||
* Replace default node_to_cpumask_ptr with optimized version
|
||||
* Deprecated: use "const struct cpumask *mask = cpumask_of_node(node)"
|
||||
@ -218,6 +222,8 @@ static inline int node_to_first_cpu(int node)
|
||||
return first_cpu(cpu_online_map);
|
||||
}
|
||||
|
||||
static inline void setup_node_to_cpumask_map(void) { }
|
||||
|
||||
/*
|
||||
* Replace default node_to_cpumask_ptr with optimized version
|
||||
* Deprecated: use "const struct cpumask *mask = cpumask_of_node(node)"
|
||||
|
||||
@ -51,32 +51,6 @@ DEFINE_EARLY_PER_CPU(u16, x86_bios_cpu_apicid, BAD_APICID);
|
||||
EXPORT_EARLY_PER_CPU_SYMBOL(x86_cpu_to_apicid);
|
||||
EXPORT_EARLY_PER_CPU_SYMBOL(x86_bios_cpu_apicid);
|
||||
|
||||
#if defined(CONFIG_NUMA) && defined(CONFIG_X86_64)
|
||||
#define X86_64_NUMA 1 /* (used later) */
|
||||
DEFINE_PER_CPU(int, node_number) = 0;
|
||||
EXPORT_PER_CPU_SYMBOL(node_number);
|
||||
|
||||
/*
|
||||
* Map cpu index to node index
|
||||
*/
|
||||
DEFINE_EARLY_PER_CPU(int, x86_cpu_to_node_map, NUMA_NO_NODE);
|
||||
EXPORT_EARLY_PER_CPU_SYMBOL(x86_cpu_to_node_map);
|
||||
|
||||
/*
|
||||
* Which logical CPUs are on which nodes
|
||||
*/
|
||||
cpumask_t *node_to_cpumask_map;
|
||||
EXPORT_SYMBOL(node_to_cpumask_map);
|
||||
|
||||
/*
|
||||
* Setup node_to_cpumask_map
|
||||
*/
|
||||
static void __init setup_node_to_cpumask_map(void);
|
||||
|
||||
#else
|
||||
static inline void setup_node_to_cpumask_map(void) { }
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_X86_64
|
||||
|
||||
/* correctly size the local cpu masks */
|
||||
@ -163,13 +137,13 @@ void __init setup_per_cpu_areas(void)
|
||||
early_per_cpu_map(x86_cpu_to_apicid, cpu);
|
||||
per_cpu(x86_bios_cpu_apicid, cpu) =
|
||||
early_per_cpu_map(x86_bios_cpu_apicid, cpu);
|
||||
#ifdef X86_64_NUMA
|
||||
per_cpu(x86_cpu_to_node_map, cpu) =
|
||||
early_per_cpu_map(x86_cpu_to_node_map, cpu);
|
||||
#endif
|
||||
#ifdef CONFIG_X86_64
|
||||
per_cpu(irq_stack_ptr, cpu) =
|
||||
per_cpu(irq_stack_union.irq_stack, cpu) + IRQ_STACK_SIZE - 64;
|
||||
#ifdef CONFIG_NUMA
|
||||
per_cpu(x86_cpu_to_node_map, cpu) =
|
||||
early_per_cpu_map(x86_cpu_to_node_map, cpu);
|
||||
#endif
|
||||
/*
|
||||
* Up to this point, CPU0 has been using .data.init
|
||||
* area. Reload %gs offset for CPU0.
|
||||
@ -184,7 +158,7 @@ void __init setup_per_cpu_areas(void)
|
||||
/* indicate the early static arrays will soon be gone */
|
||||
early_per_cpu_ptr(x86_cpu_to_apicid) = NULL;
|
||||
early_per_cpu_ptr(x86_bios_cpu_apicid) = NULL;
|
||||
#ifdef X86_64_NUMA
|
||||
#if defined(CONFIG_X86_64) && defined(CONFIG_NUMA)
|
||||
early_per_cpu_ptr(x86_cpu_to_node_map) = NULL;
|
||||
#endif
|
||||
|
||||
@ -197,204 +171,3 @@ void __init setup_per_cpu_areas(void)
|
||||
|
||||
#endif
|
||||
|
||||
#ifdef X86_64_NUMA
|
||||
|
||||
/*
|
||||
* Allocate node_to_cpumask_map based on number of available nodes
|
||||
* Requires node_possible_map to be valid.
|
||||
*
|
||||
* Note: node_to_cpumask() is not valid until after this is done.
|
||||
* (Use CONFIG_DEBUG_PER_CPU_MAPS to check this.)
|
||||
*/
|
||||
static void __init setup_node_to_cpumask_map(void)
|
||||
{
|
||||
unsigned int node, num = 0;
|
||||
cpumask_t *map;
|
||||
|
||||
/* setup nr_node_ids if not done yet */
|
||||
if (nr_node_ids == MAX_NUMNODES) {
|
||||
for_each_node_mask(node, node_possible_map)
|
||||
num = node;
|
||||
nr_node_ids = num + 1;
|
||||
}
|
||||
|
||||
/* allocate the map */
|
||||
map = alloc_bootmem_low(nr_node_ids * sizeof(cpumask_t));
|
||||
DBG("node_to_cpumask_map at %p for %d nodes\n", map, nr_node_ids);
|
||||
|
||||
pr_debug("Node to cpumask map at %p for %d nodes\n",
|
||||
map, nr_node_ids);
|
||||
|
||||
/* node_to_cpumask() will now work */
|
||||
node_to_cpumask_map = map;
|
||||
}
|
||||
|
||||
void __cpuinit numa_set_node(int cpu, int node)
|
||||
{
|
||||
int *cpu_to_node_map = early_per_cpu_ptr(x86_cpu_to_node_map);
|
||||
|
||||
/* early setting, no percpu area yet */
|
||||
if (cpu_to_node_map) {
|
||||
cpu_to_node_map[cpu] = node;
|
||||
return;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_DEBUG_PER_CPU_MAPS
|
||||
if (cpu >= nr_cpu_ids || !per_cpu_offset(cpu)) {
|
||||
printk(KERN_ERR "numa_set_node: invalid cpu# (%d)\n", cpu);
|
||||
dump_stack();
|
||||
return;
|
||||
}
|
||||
#endif
|
||||
per_cpu(x86_cpu_to_node_map, cpu) = node;
|
||||
|
||||
if (node != NUMA_NO_NODE)
|
||||
per_cpu(node_number, cpu) = node;
|
||||
}
|
||||
|
||||
void __cpuinit numa_clear_node(int cpu)
|
||||
{
|
||||
numa_set_node(cpu, NUMA_NO_NODE);
|
||||
}
|
||||
|
||||
#ifndef CONFIG_DEBUG_PER_CPU_MAPS
|
||||
|
||||
void __cpuinit numa_add_cpu(int cpu)
|
||||
{
|
||||
cpu_set(cpu, node_to_cpumask_map[early_cpu_to_node(cpu)]);
|
||||
}
|
||||
|
||||
void __cpuinit numa_remove_cpu(int cpu)
|
||||
{
|
||||
cpu_clear(cpu, node_to_cpumask_map[early_cpu_to_node(cpu)]);
|
||||
}
|
||||
|
||||
#else /* CONFIG_DEBUG_PER_CPU_MAPS */
|
||||
|
||||
/*
|
||||
* --------- debug versions of the numa functions ---------
|
||||
*/
|
||||
static void __cpuinit numa_set_cpumask(int cpu, int enable)
|
||||
{
|
||||
int node = early_cpu_to_node(cpu);
|
||||
cpumask_t *mask;
|
||||
char buf[64];
|
||||
|
||||
if (node_to_cpumask_map == NULL) {
|
||||
printk(KERN_ERR "node_to_cpumask_map NULL\n");
|
||||
dump_stack();
|
||||
return;
|
||||
}
|
||||
|
||||
mask = &node_to_cpumask_map[node];
|
||||
if (enable)
|
||||
cpu_set(cpu, *mask);
|
||||
else
|
||||
cpu_clear(cpu, *mask);
|
||||
|
||||
cpulist_scnprintf(buf, sizeof(buf), mask);
|
||||
printk(KERN_DEBUG "%s cpu %d node %d: mask now %s\n",
|
||||
enable ? "numa_add_cpu" : "numa_remove_cpu", cpu, node, buf);
|
||||
}
|
||||
|
||||
void __cpuinit numa_add_cpu(int cpu)
|
||||
{
|
||||
numa_set_cpumask(cpu, 1);
|
||||
}
|
||||
|
||||
void __cpuinit numa_remove_cpu(int cpu)
|
||||
{
|
||||
numa_set_cpumask(cpu, 0);
|
||||
}
|
||||
|
||||
int cpu_to_node(int cpu)
|
||||
{
|
||||
if (early_per_cpu_ptr(x86_cpu_to_node_map)) {
|
||||
printk(KERN_WARNING
|
||||
"cpu_to_node(%d): usage too early!\n", cpu);
|
||||
dump_stack();
|
||||
return early_per_cpu_ptr(x86_cpu_to_node_map)[cpu];
|
||||
}
|
||||
return per_cpu(x86_cpu_to_node_map, cpu);
|
||||
}
|
||||
EXPORT_SYMBOL(cpu_to_node);
|
||||
|
||||
/*
|
||||
* Same function as cpu_to_node() but used if called before the
|
||||
* per_cpu areas are setup.
|
||||
*/
|
||||
int early_cpu_to_node(int cpu)
|
||||
{
|
||||
if (early_per_cpu_ptr(x86_cpu_to_node_map))
|
||||
return early_per_cpu_ptr(x86_cpu_to_node_map)[cpu];
|
||||
|
||||
if (!per_cpu_offset(cpu)) {
|
||||
printk(KERN_WARNING
|
||||
"early_cpu_to_node(%d): no per_cpu area!\n", cpu);
|
||||
dump_stack();
|
||||
return NUMA_NO_NODE;
|
||||
}
|
||||
return per_cpu(x86_cpu_to_node_map, cpu);
|
||||
}
|
||||
|
||||
|
||||
/* empty cpumask */
|
||||
static const cpumask_t cpu_mask_none;
|
||||
|
||||
/*
|
||||
* Returns a pointer to the bitmask of CPUs on Node 'node'.
|
||||
*/
|
||||
const cpumask_t *cpumask_of_node(int node)
|
||||
{
|
||||
if (node_to_cpumask_map == NULL) {
|
||||
printk(KERN_WARNING
|
||||
"cpumask_of_node(%d): no node_to_cpumask_map!\n",
|
||||
node);
|
||||
dump_stack();
|
||||
return (const cpumask_t *)&cpu_online_map;
|
||||
}
|
||||
if (node >= nr_node_ids) {
|
||||
printk(KERN_WARNING
|
||||
"cpumask_of_node(%d): node > nr_node_ids(%d)\n",
|
||||
node, nr_node_ids);
|
||||
dump_stack();
|
||||
return &cpu_mask_none;
|
||||
}
|
||||
return &node_to_cpumask_map[node];
|
||||
}
|
||||
EXPORT_SYMBOL(cpumask_of_node);
|
||||
|
||||
/*
|
||||
* Returns a bitmask of CPUs on Node 'node'.
|
||||
*
|
||||
* Side note: this function creates the returned cpumask on the stack
|
||||
* so with a high NR_CPUS count, excessive stack space is used. The
|
||||
* node_to_cpumask_ptr function should be used whenever possible.
|
||||
*/
|
||||
cpumask_t node_to_cpumask(int node)
|
||||
{
|
||||
if (node_to_cpumask_map == NULL) {
|
||||
printk(KERN_WARNING
|
||||
"node_to_cpumask(%d): no node_to_cpumask_map!\n", node);
|
||||
dump_stack();
|
||||
return cpu_online_map;
|
||||
}
|
||||
if (node >= nr_node_ids) {
|
||||
printk(KERN_WARNING
|
||||
"node_to_cpumask(%d): node > nr_node_ids(%d)\n",
|
||||
node, nr_node_ids);
|
||||
dump_stack();
|
||||
return cpu_mask_none;
|
||||
}
|
||||
return node_to_cpumask_map[node];
|
||||
}
|
||||
EXPORT_SYMBOL(node_to_cpumask);
|
||||
|
||||
/*
|
||||
* --------- end of debug versions of the numa functions ---------
|
||||
*/
|
||||
|
||||
#endif /* CONFIG_DEBUG_PER_CPU_MAPS */
|
||||
|
||||
#endif /* X86_64_NUMA */
|
||||
|
||||
|
||||
@ -20,6 +20,12 @@
|
||||
#include <asm/acpi.h>
|
||||
#include <asm/k8.h>
|
||||
|
||||
#ifdef CONFIG_DEBUG_PER_CPU_MAPS
|
||||
# define DBG(x...) printk(KERN_DEBUG x)
|
||||
#else
|
||||
# define DBG(x...)
|
||||
#endif
|
||||
|
||||
struct pglist_data *node_data[MAX_NUMNODES] __read_mostly;
|
||||
EXPORT_SYMBOL(node_data);
|
||||
|
||||
@ -33,6 +39,21 @@ int numa_off __initdata;
|
||||
static unsigned long __initdata nodemap_addr;
|
||||
static unsigned long __initdata nodemap_size;
|
||||
|
||||
DEFINE_PER_CPU(int, node_number) = 0;
|
||||
EXPORT_PER_CPU_SYMBOL(node_number);
|
||||
|
||||
/*
|
||||
* Map cpu index to node index
|
||||
*/
|
||||
DEFINE_EARLY_PER_CPU(int, x86_cpu_to_node_map, NUMA_NO_NODE);
|
||||
EXPORT_EARLY_PER_CPU_SYMBOL(x86_cpu_to_node_map);
|
||||
|
||||
/*
|
||||
* Which logical CPUs are on which nodes
|
||||
*/
|
||||
cpumask_t *node_to_cpumask_map;
|
||||
EXPORT_SYMBOL(node_to_cpumask_map);
|
||||
|
||||
/*
|
||||
* Given a shift value, try to populate memnodemap[]
|
||||
* Returns :
|
||||
@ -640,3 +661,199 @@ void __init init_cpu_to_node(void)
|
||||
#endif
|
||||
|
||||
|
||||
/*
|
||||
* Allocate node_to_cpumask_map based on number of available nodes
|
||||
* Requires node_possible_map to be valid.
|
||||
*
|
||||
* Note: node_to_cpumask() is not valid until after this is done.
|
||||
* (Use CONFIG_DEBUG_PER_CPU_MAPS to check this.)
|
||||
*/
|
||||
void __init setup_node_to_cpumask_map(void)
|
||||
{
|
||||
unsigned int node, num = 0;
|
||||
cpumask_t *map;
|
||||
|
||||
/* setup nr_node_ids if not done yet */
|
||||
if (nr_node_ids == MAX_NUMNODES) {
|
||||
for_each_node_mask(node, node_possible_map)
|
||||
num = node;
|
||||
nr_node_ids = num + 1;
|
||||
}
|
||||
|
||||
/* allocate the map */
|
||||
map = alloc_bootmem_low(nr_node_ids * sizeof(cpumask_t));
|
||||
DBG("node_to_cpumask_map at %p for %d nodes\n", map, nr_node_ids);
|
||||
|
||||
pr_debug("Node to cpumask map at %p for %d nodes\n",
|
||||
map, nr_node_ids);
|
||||
|
||||
/* node_to_cpumask() will now work */
|
||||
node_to_cpumask_map = map;
|
||||
}
|
||||
|
||||
void __cpuinit numa_set_node(int cpu, int node)
|
||||
{
|
||||
int *cpu_to_node_map = early_per_cpu_ptr(x86_cpu_to_node_map);
|
||||
|
||||
/* early setting, no percpu area yet */
|
||||
if (cpu_to_node_map) {
|
||||
cpu_to_node_map[cpu] = node;
|
||||
return;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_DEBUG_PER_CPU_MAPS
|
||||
if (cpu >= nr_cpu_ids || !per_cpu_offset(cpu)) {
|
||||
printk(KERN_ERR "numa_set_node: invalid cpu# (%d)\n", cpu);
|
||||
dump_stack();
|
||||
return;
|
||||
}
|
||||
#endif
|
||||
per_cpu(x86_cpu_to_node_map, cpu) = node;
|
||||
|
||||
if (node != NUMA_NO_NODE)
|
||||
per_cpu(node_number, cpu) = node;
|
||||
}
|
||||
|
||||
void __cpuinit numa_clear_node(int cpu)
|
||||
{
|
||||
numa_set_node(cpu, NUMA_NO_NODE);
|
||||
}
|
||||
|
||||
#ifndef CONFIG_DEBUG_PER_CPU_MAPS
|
||||
|
||||
void __cpuinit numa_add_cpu(int cpu)
|
||||
{
|
||||
cpu_set(cpu, node_to_cpumask_map[early_cpu_to_node(cpu)]);
|
||||
}
|
||||
|
||||
void __cpuinit numa_remove_cpu(int cpu)
|
||||
{
|
||||
cpu_clear(cpu, node_to_cpumask_map[early_cpu_to_node(cpu)]);
|
||||
}
|
||||
|
||||
#else /* CONFIG_DEBUG_PER_CPU_MAPS */
|
||||
|
||||
/*
|
||||
* --------- debug versions of the numa functions ---------
|
||||
*/
|
||||
static void __cpuinit numa_set_cpumask(int cpu, int enable)
|
||||
{
|
||||
int node = early_cpu_to_node(cpu);
|
||||
cpumask_t *mask;
|
||||
char buf[64];
|
||||
|
||||
if (node_to_cpumask_map == NULL) {
|
||||
printk(KERN_ERR "node_to_cpumask_map NULL\n");
|
||||
dump_stack();
|
||||
return;
|
||||
}
|
||||
|
||||
mask = &node_to_cpumask_map[node];
|
||||
if (enable)
|
||||
cpu_set(cpu, *mask);
|
||||
else
|
||||
cpu_clear(cpu, *mask);
|
||||
|
||||
cpulist_scnprintf(buf, sizeof(buf), mask);
|
||||
printk(KERN_DEBUG "%s cpu %d node %d: mask now %s\n",
|
||||
enable ? "numa_add_cpu" : "numa_remove_cpu", cpu, node, buf);
|
||||
}
|
||||
|
||||
void __cpuinit numa_add_cpu(int cpu)
|
||||
{
|
||||
numa_set_cpumask(cpu, 1);
|
||||
}
|
||||
|
||||
void __cpuinit numa_remove_cpu(int cpu)
|
||||
{
|
||||
numa_set_cpumask(cpu, 0);
|
||||
}
|
||||
|
||||
int cpu_to_node(int cpu)
|
||||
{
|
||||
if (early_per_cpu_ptr(x86_cpu_to_node_map)) {
|
||||
printk(KERN_WARNING
|
||||
"cpu_to_node(%d): usage too early!\n", cpu);
|
||||
dump_stack();
|
||||
return early_per_cpu_ptr(x86_cpu_to_node_map)[cpu];
|
||||
}
|
||||
return per_cpu(x86_cpu_to_node_map, cpu);
|
||||
}
|
||||
EXPORT_SYMBOL(cpu_to_node);
|
||||
|
||||
/*
|
||||
* Same function as cpu_to_node() but used if called before the
|
||||
* per_cpu areas are setup.
|
||||
*/
|
||||
int early_cpu_to_node(int cpu)
|
||||
{
|
||||
if (early_per_cpu_ptr(x86_cpu_to_node_map))
|
||||
return early_per_cpu_ptr(x86_cpu_to_node_map)[cpu];
|
||||
|
||||
if (!per_cpu_offset(cpu)) {
|
||||
printk(KERN_WARNING
|
||||
"early_cpu_to_node(%d): no per_cpu area!\n", cpu);
|
||||
dump_stack();
|
||||
return NUMA_NO_NODE;
|
||||
}
|
||||
return per_cpu(x86_cpu_to_node_map, cpu);
|
||||
}
|
||||
|
||||
|
||||
/* empty cpumask */
|
||||
static const cpumask_t cpu_mask_none;
|
||||
|
||||
/*
|
||||
* Returns a pointer to the bitmask of CPUs on Node 'node'.
|
||||
*/
|
||||
const cpumask_t *cpumask_of_node(int node)
|
||||
{
|
||||
if (node_to_cpumask_map == NULL) {
|
||||
printk(KERN_WARNING
|
||||
"cpumask_of_node(%d): no node_to_cpumask_map!\n",
|
||||
node);
|
||||
dump_stack();
|
||||
return (const cpumask_t *)&cpu_online_map;
|
||||
}
|
||||
if (node >= nr_node_ids) {
|
||||
printk(KERN_WARNING
|
||||
"cpumask_of_node(%d): node > nr_node_ids(%d)\n",
|
||||
node, nr_node_ids);
|
||||
dump_stack();
|
||||
return &cpu_mask_none;
|
||||
}
|
||||
return &node_to_cpumask_map[node];
|
||||
}
|
||||
EXPORT_SYMBOL(cpumask_of_node);
|
||||
|
||||
/*
|
||||
* Returns a bitmask of CPUs on Node 'node'.
|
||||
*
|
||||
* Side note: this function creates the returned cpumask on the stack
|
||||
* so with a high NR_CPUS count, excessive stack space is used. The
|
||||
* node_to_cpumask_ptr function should be used whenever possible.
|
||||
*/
|
||||
cpumask_t node_to_cpumask(int node)
|
||||
{
|
||||
if (node_to_cpumask_map == NULL) {
|
||||
printk(KERN_WARNING
|
||||
"node_to_cpumask(%d): no node_to_cpumask_map!\n", node);
|
||||
dump_stack();
|
||||
return cpu_online_map;
|
||||
}
|
||||
if (node >= nr_node_ids) {
|
||||
printk(KERN_WARNING
|
||||
"node_to_cpumask(%d): node > nr_node_ids(%d)\n",
|
||||
node, nr_node_ids);
|
||||
dump_stack();
|
||||
return cpu_mask_none;
|
||||
}
|
||||
return node_to_cpumask_map[node];
|
||||
}
|
||||
EXPORT_SYMBOL(node_to_cpumask);
|
||||
|
||||
/*
|
||||
* --------- end of debug versions of the numa functions ---------
|
||||
*/
|
||||
|
||||
#endif /* CONFIG_DEBUG_PER_CPU_MAPS */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user