x86/irq: change irq_desc_alloc() to take node instead of cpu
This simplifies the node awareness of the code. All our allocators only deal with a NUMA node ID locality not with CPU ids anyway - so there's no need to maintain (and transform) a CPU id all across the IRq layer. v2: keep move_irq_desc related [ Impact: cleanup, prepare IRQ code to be NUMA-aware ] Signed-off-by: Yinghai Lu <yinghai@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Suresh Siddha <suresh.b.siddha@intel.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Jeremy Fitzhardinge <jeremy@goop.org> LKML-Reference: <49F65536.2020300@kernel.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Yinghai Lu
Ingo Molnar
parent
57b150cce8
commit
85ac16d033
|
|
@ -129,12 +129,9 @@ struct irq_pin_list {
|
|||
struct irq_pin_list *next;
|
||||
};
|
||||
|
||||
static struct irq_pin_list *get_one_free_irq_2_pin(int cpu)
|
||||
static struct irq_pin_list *get_one_free_irq_2_pin(int node)
|
||||
{
|
||||
struct irq_pin_list *pin;
|
||||
int node;
|
||||
|
||||
node = cpu_to_node(cpu);
|
||||
|
||||
pin = kzalloc_node(sizeof(*pin), GFP_ATOMIC, node);
|
||||
|
||||
|
|
@ -209,12 +206,9 @@ static struct irq_cfg *irq_cfg(unsigned int irq)
|
|||
return cfg;
|
||||
}
|
||||
|
||||
static struct irq_cfg *get_one_free_irq_cfg(int cpu)
|
||||
static struct irq_cfg *get_one_free_irq_cfg(int node)
|
||||
{
|
||||
struct irq_cfg *cfg;
|
||||
int node;
|
||||
|
||||
node = cpu_to_node(cpu);
|
||||
|
||||
cfg = kzalloc_node(sizeof(*cfg), GFP_ATOMIC, node);
|
||||
if (cfg) {
|
||||
|
|
@ -235,13 +229,13 @@ static struct irq_cfg *get_one_free_irq_cfg(int cpu)
|
|||
return cfg;
|
||||
}
|
||||
|
||||
int arch_init_chip_data(struct irq_desc *desc, int cpu)
|
||||
int arch_init_chip_data(struct irq_desc *desc, int node)
|
||||
{
|
||||
struct irq_cfg *cfg;
|
||||
|
||||
cfg = desc->chip_data;
|
||||
if (!cfg) {
|
||||
desc->chip_data = get_one_free_irq_cfg(cpu);
|
||||
desc->chip_data = get_one_free_irq_cfg(node);
|
||||
if (!desc->chip_data) {
|
||||
printk(KERN_ERR "can not alloc irq_cfg\n");
|
||||
BUG_ON(1);
|
||||
|
|
@ -253,7 +247,7 @@ int arch_init_chip_data(struct irq_desc *desc, int cpu)
|
|||
|
||||
/* for move_irq_desc */
|
||||
static void
|
||||
init_copy_irq_2_pin(struct irq_cfg *old_cfg, struct irq_cfg *cfg, int cpu)
|
||||
init_copy_irq_2_pin(struct irq_cfg *old_cfg, struct irq_cfg *cfg, int node)
|
||||
{
|
||||
struct irq_pin_list *old_entry, *head, *tail, *entry;
|
||||
|
||||
|
|
@ -262,7 +256,7 @@ init_copy_irq_2_pin(struct irq_cfg *old_cfg, struct irq_cfg *cfg, int cpu)
|
|||
if (!old_entry)
|
||||
return;
|
||||
|
||||
entry = get_one_free_irq_2_pin(cpu);
|
||||
entry = get_one_free_irq_2_pin(node);
|
||||
if (!entry)
|
||||
return;
|
||||
|
||||
|
|
@ -272,7 +266,7 @@ init_copy_irq_2_pin(struct irq_cfg *old_cfg, struct irq_cfg *cfg, int cpu)
|
|||
tail = entry;
|
||||
old_entry = old_entry->next;
|
||||
while (old_entry) {
|
||||
entry = get_one_free_irq_2_pin(cpu);
|
||||
entry = get_one_free_irq_2_pin(node);
|
||||
if (!entry) {
|
||||
entry = head;
|
||||
while (entry) {
|
||||
|
|
@ -312,12 +306,12 @@ static void free_irq_2_pin(struct irq_cfg *old_cfg, struct irq_cfg *cfg)
|
|||
}
|
||||
|
||||
void arch_init_copy_chip_data(struct irq_desc *old_desc,
|
||||
struct irq_desc *desc, int cpu)
|
||||
struct irq_desc *desc, int node)
|
||||
{
|
||||
struct irq_cfg *cfg;
|
||||
struct irq_cfg *old_cfg;
|
||||
|
||||
cfg = get_one_free_irq_cfg(cpu);
|
||||
cfg = get_one_free_irq_cfg(node);
|
||||
|
||||
if (!cfg)
|
||||
return;
|
||||
|
|
@ -328,7 +322,7 @@ void arch_init_copy_chip_data(struct irq_desc *old_desc,
|
|||
|
||||
memcpy(cfg, old_cfg, sizeof(struct irq_cfg));
|
||||
|
||||
init_copy_irq_2_pin(old_cfg, cfg, cpu);
|
||||
init_copy_irq_2_pin(old_cfg, cfg, node);
|
||||
}
|
||||
|
||||
static void free_irq_cfg(struct irq_cfg *old_cfg)
|
||||
|
|
@ -615,13 +609,13 @@ set_ioapic_affinity_irq(unsigned int irq, const struct cpumask *mask)
|
|||
* shared ISA-space IRQs, so we have to support them. We are super
|
||||
* fast in the common case, and fast for shared ISA-space IRQs.
|
||||
*/
|
||||
static void add_pin_to_irq_cpu(struct irq_cfg *cfg, int cpu, int apic, int pin)
|
||||
static void add_pin_to_irq_node(struct irq_cfg *cfg, int node, int apic, int pin)
|
||||
{
|
||||
struct irq_pin_list *entry;
|
||||
|
||||
entry = cfg->irq_2_pin;
|
||||
if (!entry) {
|
||||
entry = get_one_free_irq_2_pin(cpu);
|
||||
entry = get_one_free_irq_2_pin(node);
|
||||
if (!entry) {
|
||||
printk(KERN_ERR "can not alloc irq_2_pin to add %d - %d\n",
|
||||
apic, pin);
|
||||
|
|
@ -641,7 +635,7 @@ static void add_pin_to_irq_cpu(struct irq_cfg *cfg, int cpu, int apic, int pin)
|
|||
entry = entry->next;
|
||||
}
|
||||
|
||||
entry->next = get_one_free_irq_2_pin(cpu);
|
||||
entry->next = get_one_free_irq_2_pin(node);
|
||||
entry = entry->next;
|
||||
entry->apic = apic;
|
||||
entry->pin = pin;
|
||||
|
|
@ -650,7 +644,7 @@ static void add_pin_to_irq_cpu(struct irq_cfg *cfg, int cpu, int apic, int pin)
|
|||
/*
|
||||
* Reroute an IRQ to a different pin.
|
||||
*/
|
||||
static void __init replace_pin_at_irq_cpu(struct irq_cfg *cfg, int cpu,
|
||||
static void __init replace_pin_at_irq_node(struct irq_cfg *cfg, int node,
|
||||
int oldapic, int oldpin,
|
||||
int newapic, int newpin)
|
||||
{
|
||||
|
|
@ -670,7 +664,7 @@ static void __init replace_pin_at_irq_cpu(struct irq_cfg *cfg, int cpu,
|
|||
|
||||
/* why? call replace before add? */
|
||||
if (!replaced)
|
||||
add_pin_to_irq_cpu(cfg, cpu, newapic, newpin);
|
||||
add_pin_to_irq_node(cfg, node, newapic, newpin);
|
||||
}
|
||||
|
||||
static inline void io_apic_modify_irq(struct irq_cfg *cfg,
|
||||
|
|
@ -1612,7 +1606,7 @@ static void __init setup_IO_APIC_irqs(void)
|
|||
int notcon = 0;
|
||||
struct irq_desc *desc;
|
||||
struct irq_cfg *cfg;
|
||||
int cpu = boot_cpu_id;
|
||||
int node = cpu_to_node(boot_cpu_id);
|
||||
|
||||
apic_printk(APIC_VERBOSE, KERN_DEBUG "init IO_APIC IRQs\n");
|
||||
|
||||
|
|
@ -1647,13 +1641,13 @@ static void __init setup_IO_APIC_irqs(void)
|
|||
apic->multi_timer_check(apic_id, irq))
|
||||
continue;
|
||||
|
||||
desc = irq_to_desc_alloc_cpu(irq, cpu);
|
||||
desc = irq_to_desc_alloc_node(irq, node);
|
||||
if (!desc) {
|
||||
printk(KERN_INFO "can not get irq_desc for %d\n", irq);
|
||||
continue;
|
||||
}
|
||||
cfg = desc->chip_data;
|
||||
add_pin_to_irq_cpu(cfg, cpu, apic_id, pin);
|
||||
add_pin_to_irq_node(cfg, node, apic_id, pin);
|
||||
|
||||
setup_IO_APIC_irq(apic_id, pin, irq, desc,
|
||||
irq_trigger(idx), irq_polarity(idx));
|
||||
|
|
@ -2863,7 +2857,7 @@ static inline void __init check_timer(void)
|
|||
{
|
||||
struct irq_desc *desc = irq_to_desc(0);
|
||||
struct irq_cfg *cfg = desc->chip_data;
|
||||
int cpu = boot_cpu_id;
|
||||
int node = cpu_to_node(boot_cpu_id);
|
||||
int apic1, pin1, apic2, pin2;
|
||||
unsigned long flags;
|
||||
int no_pin1 = 0;
|
||||
|
|
@ -2929,7 +2923,7 @@ static inline void __init check_timer(void)
|
|||
* Ok, does IRQ0 through the IOAPIC work?
|
||||
*/
|
||||
if (no_pin1) {
|
||||
add_pin_to_irq_cpu(cfg, cpu, apic1, pin1);
|
||||
add_pin_to_irq_node(cfg, node, apic1, pin1);
|
||||
setup_timer_IRQ0_pin(apic1, pin1, cfg->vector);
|
||||
} else {
|
||||
/* for edge trigger, setup_IO_APIC_irq already
|
||||
|
|
@ -2966,7 +2960,7 @@ static inline void __init check_timer(void)
|
|||
/*
|
||||
* legacy devices should be connected to IO APIC #0
|
||||
*/
|
||||
replace_pin_at_irq_cpu(cfg, cpu, apic1, pin1, apic2, pin2);
|
||||
replace_pin_at_irq_node(cfg, node, apic1, pin1, apic2, pin2);
|
||||
setup_timer_IRQ0_pin(apic2, pin2, cfg->vector);
|
||||
enable_8259A_irq(0);
|
||||
if (timer_irq_works()) {
|
||||
|
|
@ -3185,7 +3179,7 @@ unsigned int create_irq_nr(unsigned int irq_want)
|
|||
unsigned int new;
|
||||
unsigned long flags;
|
||||
struct irq_cfg *cfg_new = NULL;
|
||||
int cpu = boot_cpu_id;
|
||||
int node = cpu_to_node(boot_cpu_id);
|
||||
struct irq_desc *desc_new = NULL;
|
||||
|
||||
irq = 0;
|
||||
|
|
@ -3194,7 +3188,7 @@ unsigned int create_irq_nr(unsigned int irq_want)
|
|||
|
||||
spin_lock_irqsave(&vector_lock, flags);
|
||||
for (new = irq_want; new < nr_irqs; new++) {
|
||||
desc_new = irq_to_desc_alloc_cpu(new, cpu);
|
||||
desc_new = irq_to_desc_alloc_node(new, node);
|
||||
if (!desc_new) {
|
||||
printk(KERN_INFO "can not get irq_desc for %d\n", new);
|
||||
continue;
|
||||
|
|
@ -3968,7 +3962,7 @@ int io_apic_set_pci_routing (int ioapic, int pin, int irq, int triggering, int p
|
|||
{
|
||||
struct irq_desc *desc;
|
||||
struct irq_cfg *cfg;
|
||||
int cpu = boot_cpu_id;
|
||||
int node = cpu_to_node(boot_cpu_id);
|
||||
|
||||
if (!IO_APIC_IRQ(irq)) {
|
||||
apic_printk(APIC_QUIET,KERN_ERR "IOAPIC[%d]: Invalid reference to IRQ 0\n",
|
||||
|
|
@ -3976,7 +3970,7 @@ int io_apic_set_pci_routing (int ioapic, int pin, int irq, int triggering, int p
|
|||
return -EINVAL;
|
||||
}
|
||||
|
||||
desc = irq_to_desc_alloc_cpu(irq, cpu);
|
||||
desc = irq_to_desc_alloc_node(irq, node);
|
||||
if (!desc) {
|
||||
printk(KERN_INFO "can not get irq_desc %d\n", irq);
|
||||
return 0;
|
||||
|
|
@ -3987,7 +3981,7 @@ int io_apic_set_pci_routing (int ioapic, int pin, int irq, int triggering, int p
|
|||
*/
|
||||
if (irq >= NR_IRQS_LEGACY) {
|
||||
cfg = desc->chip_data;
|
||||
add_pin_to_irq_cpu(cfg, cpu, ioapic, pin);
|
||||
add_pin_to_irq_node(cfg, node, ioapic, pin);
|
||||
}
|
||||
|
||||
setup_IO_APIC_irq(ioapic, pin, irq, desc, triggering, polarity);
|
||||
|
|
|
|||
|
|
@ -636,7 +636,7 @@ static void __init lguest_init_IRQ(void)
|
|||
|
||||
void lguest_setup_irq(unsigned int irq)
|
||||
{
|
||||
irq_to_desc_alloc_cpu(irq, 0);
|
||||
irq_to_desc_alloc_node(irq, 0);
|
||||
set_irq_chip_and_handler_name(irq, &lguest_irq_controller,
|
||||
handle_level_irq, "level");
|
||||
}
|
||||
|
|
|
|||
|
|
@ -23,15 +23,12 @@ struct irq_2_iommu {
|
|||
};
|
||||
|
||||
#ifdef CONFIG_GENERIC_HARDIRQS
|
||||
static struct irq_2_iommu *get_one_free_irq_2_iommu(int cpu)
|
||||
static struct irq_2_iommu *get_one_free_irq_2_iommu(int node)
|
||||
{
|
||||
struct irq_2_iommu *iommu;
|
||||
int node;
|
||||
|
||||
node = cpu_to_node(cpu);
|
||||
|
||||
iommu = kzalloc_node(sizeof(*iommu), GFP_ATOMIC, node);
|
||||
printk(KERN_DEBUG "alloc irq_2_iommu on cpu %d node %d\n", cpu, node);
|
||||
printk(KERN_DEBUG "alloc irq_2_iommu on node %d\n", node);
|
||||
|
||||
return iommu;
|
||||
}
|
||||
|
|
@ -48,7 +45,7 @@ static struct irq_2_iommu *irq_2_iommu(unsigned int irq)
|
|||
return desc->irq_2_iommu;
|
||||
}
|
||||
|
||||
static struct irq_2_iommu *irq_2_iommu_alloc_cpu(unsigned int irq, int cpu)
|
||||
static struct irq_2_iommu *irq_2_iommu_alloc_node(unsigned int irq, int node)
|
||||
{
|
||||
struct irq_desc *desc;
|
||||
struct irq_2_iommu *irq_iommu;
|
||||
|
|
@ -56,7 +53,7 @@ static struct irq_2_iommu *irq_2_iommu_alloc_cpu(unsigned int irq, int cpu)
|
|||
/*
|
||||
* alloc irq desc if not allocated already.
|
||||
*/
|
||||
desc = irq_to_desc_alloc_cpu(irq, cpu);
|
||||
desc = irq_to_desc_alloc_node(irq, node);
|
||||
if (!desc) {
|
||||
printk(KERN_INFO "can not get irq_desc for %d\n", irq);
|
||||
return NULL;
|
||||
|
|
@ -65,14 +62,14 @@ static struct irq_2_iommu *irq_2_iommu_alloc_cpu(unsigned int irq, int cpu)
|
|||
irq_iommu = desc->irq_2_iommu;
|
||||
|
||||
if (!irq_iommu)
|
||||
desc->irq_2_iommu = get_one_free_irq_2_iommu(cpu);
|
||||
desc->irq_2_iommu = get_one_free_irq_2_iommu(node);
|
||||
|
||||
return desc->irq_2_iommu;
|
||||
}
|
||||
|
||||
static struct irq_2_iommu *irq_2_iommu_alloc(unsigned int irq)
|
||||
{
|
||||
return irq_2_iommu_alloc_cpu(irq, boot_cpu_id);
|
||||
return irq_2_iommu_alloc_node(irq, cpu_to_node(boot_cpu_id));
|
||||
}
|
||||
|
||||
#else /* !CONFIG_SPARSE_IRQ */
|
||||
|
|
|
|||
|
|
@ -335,7 +335,7 @@ static int find_unbound_irq(void)
|
|||
if (irq == nr_irqs)
|
||||
panic("No available IRQ to bind to: increase nr_irqs!\n");
|
||||
|
||||
desc = irq_to_desc_alloc_cpu(irq, 0);
|
||||
desc = irq_to_desc_alloc_node(irq, 0);
|
||||
if (WARN_ON(desc == NULL))
|
||||
return -1;
|
||||
|
||||
|
|
|
|||
|
|
@ -566,6 +566,6 @@ struct irq_desc;
|
|||
extern int early_irq_init(void);
|
||||
extern int arch_probe_nr_irqs(void);
|
||||
extern int arch_early_irq_init(void);
|
||||
extern int arch_init_chip_data(struct irq_desc *desc, int cpu);
|
||||
extern int arch_init_chip_data(struct irq_desc *desc, int node);
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -187,7 +187,7 @@ struct irq_desc {
|
|||
spinlock_t lock;
|
||||
#ifdef CONFIG_SMP
|
||||
cpumask_var_t affinity;
|
||||
unsigned int cpu;
|
||||
unsigned int node;
|
||||
#ifdef CONFIG_GENERIC_PENDING_IRQ
|
||||
cpumask_var_t pending_mask;
|
||||
#endif
|
||||
|
|
@ -201,16 +201,16 @@ struct irq_desc {
|
|||
} ____cacheline_internodealigned_in_smp;
|
||||
|
||||
extern void arch_init_copy_chip_data(struct irq_desc *old_desc,
|
||||
struct irq_desc *desc, int cpu);
|
||||
struct irq_desc *desc, int node);
|
||||
extern void arch_free_chip_data(struct irq_desc *old_desc, struct irq_desc *desc);
|
||||
|
||||
#ifndef CONFIG_SPARSE_IRQ
|
||||
extern struct irq_desc irq_desc[NR_IRQS];
|
||||
#else /* CONFIG_SPARSE_IRQ */
|
||||
extern struct irq_desc *move_irq_desc(struct irq_desc *old_desc, int cpu);
|
||||
extern struct irq_desc *move_irq_desc(struct irq_desc *old_desc, int node);
|
||||
#endif /* CONFIG_SPARSE_IRQ */
|
||||
|
||||
extern struct irq_desc *irq_to_desc_alloc_cpu(unsigned int irq, int cpu);
|
||||
extern struct irq_desc *irq_to_desc_alloc_node(unsigned int irq, int node);
|
||||
|
||||
/*
|
||||
* Migration helpers for obsolete names, they will go away:
|
||||
|
|
@ -422,12 +422,10 @@ extern int set_irq_msi(unsigned int irq, struct msi_desc *entry);
|
|||
* Allocates affinity and pending_mask cpumask if required.
|
||||
* Returns true if successful (or not required).
|
||||
*/
|
||||
static inline bool alloc_desc_masks(struct irq_desc *desc, int cpu,
|
||||
static inline bool alloc_desc_masks(struct irq_desc *desc, int node,
|
||||
bool boot)
|
||||
{
|
||||
#ifdef CONFIG_CPUMASK_OFFSTACK
|
||||
int node;
|
||||
|
||||
if (boot) {
|
||||
alloc_bootmem_cpumask_var(&desc->affinity);
|
||||
|
||||
|
|
@ -437,8 +435,6 @@ static inline bool alloc_desc_masks(struct irq_desc *desc, int cpu,
|
|||
return true;
|
||||
}
|
||||
|
||||
node = cpu_to_node(cpu);
|
||||
|
||||
if (!alloc_cpumask_var_node(&desc->affinity, GFP_ATOMIC, node))
|
||||
return false;
|
||||
|
||||
|
|
@ -494,7 +490,7 @@ static inline void free_desc_masks(struct irq_desc *old_desc,
|
|||
|
||||
#else /* !CONFIG_SMP */
|
||||
|
||||
static inline bool alloc_desc_masks(struct irq_desc *desc, int cpu,
|
||||
static inline bool alloc_desc_masks(struct irq_desc *desc, int node,
|
||||
bool boot)
|
||||
{
|
||||
return true;
|
||||
|
|
|
|||
|
|
@ -81,12 +81,10 @@ static struct irq_desc irq_desc_init = {
|
|||
.lock = __SPIN_LOCK_UNLOCKED(irq_desc_init.lock),
|
||||
};
|
||||
|
||||
void init_kstat_irqs(struct irq_desc *desc, int cpu, int nr)
|
||||
void init_kstat_irqs(struct irq_desc *desc, int node, int nr)
|
||||
{
|
||||
int node;
|
||||
void *ptr;
|
||||
|
||||
node = cpu_to_node(cpu);
|
||||
ptr = kzalloc_node(nr * sizeof(*desc->kstat_irqs), GFP_ATOMIC, node);
|
||||
|
||||
/*
|
||||
|
|
@ -94,33 +92,32 @@ void init_kstat_irqs(struct irq_desc *desc, int cpu, int nr)
|
|||
* init_copy_kstat_irqs() could still use old one
|
||||
*/
|
||||
if (ptr) {
|
||||
printk(KERN_DEBUG " alloc kstat_irqs on cpu %d node %d\n",
|
||||
cpu, node);
|
||||
printk(KERN_DEBUG " alloc kstat_irqs on node %d\n", node);
|
||||
desc->kstat_irqs = ptr;
|
||||
}
|
||||
}
|
||||
|
||||
static void init_one_irq_desc(int irq, struct irq_desc *desc, int cpu)
|
||||
static void init_one_irq_desc(int irq, struct irq_desc *desc, int node)
|
||||
{
|
||||
memcpy(desc, &irq_desc_init, sizeof(struct irq_desc));
|
||||
|
||||
spin_lock_init(&desc->lock);
|
||||
desc->irq = irq;
|
||||
#ifdef CONFIG_SMP
|
||||
desc->cpu = cpu;
|
||||
desc->node = node;
|
||||
#endif
|
||||
lockdep_set_class(&desc->lock, &irq_desc_lock_class);
|
||||
init_kstat_irqs(desc, cpu, nr_cpu_ids);
|
||||
init_kstat_irqs(desc, node, nr_cpu_ids);
|
||||
if (!desc->kstat_irqs) {
|
||||
printk(KERN_ERR "can not alloc kstat_irqs\n");
|
||||
BUG_ON(1);
|
||||
}
|
||||
if (!alloc_desc_masks(desc, cpu, false)) {
|
||||
if (!alloc_desc_masks(desc, node, false)) {
|
||||
printk(KERN_ERR "can not alloc irq_desc cpumasks\n");
|
||||
BUG_ON(1);
|
||||
}
|
||||
init_desc_masks(desc);
|
||||
arch_init_chip_data(desc, cpu);
|
||||
arch_init_chip_data(desc, node);
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -189,11 +186,10 @@ struct irq_desc *irq_to_desc(unsigned int irq)
|
|||
return NULL;
|
||||
}
|
||||
|
||||
struct irq_desc *irq_to_desc_alloc_cpu(unsigned int irq, int cpu)
|
||||
struct irq_desc *irq_to_desc_alloc_node(unsigned int irq, int node)
|
||||
{
|
||||
struct irq_desc *desc;
|
||||
unsigned long flags;
|
||||
int node;
|
||||
|
||||
if (irq >= nr_irqs) {
|
||||
WARN(1, "irq (%d) >= nr_irqs (%d) in irq_to_desc_alloc\n",
|
||||
|
|
@ -212,15 +208,13 @@ struct irq_desc *irq_to_desc_alloc_cpu(unsigned int irq, int cpu)
|
|||
if (desc)
|
||||
goto out_unlock;
|
||||
|
||||
node = cpu_to_node(cpu);
|
||||
desc = kzalloc_node(sizeof(*desc), GFP_ATOMIC, node);
|
||||
printk(KERN_DEBUG " alloc irq_desc for %d on cpu %d node %d\n",
|
||||
irq, cpu, node);
|
||||
printk(KERN_DEBUG " alloc irq_desc for %d on node %d\n", irq, node);
|
||||
if (!desc) {
|
||||
printk(KERN_ERR "can not alloc irq_desc\n");
|
||||
BUG_ON(1);
|
||||
}
|
||||
init_one_irq_desc(irq, desc, cpu);
|
||||
init_one_irq_desc(irq, desc, node);
|
||||
|
||||
irq_desc_ptrs[irq] = desc;
|
||||
|
||||
|
|
@ -270,7 +264,7 @@ struct irq_desc *irq_to_desc(unsigned int irq)
|
|||
return (irq < NR_IRQS) ? irq_desc + irq : NULL;
|
||||
}
|
||||
|
||||
struct irq_desc *irq_to_desc_alloc_cpu(unsigned int irq, int cpu)
|
||||
struct irq_desc *irq_to_desc_alloc_node(unsigned int irq, int node)
|
||||
{
|
||||
return irq_to_desc(irq);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -16,7 +16,7 @@ extern void __disable_irq(struct irq_desc *desc, unsigned int irq, bool susp);
|
|||
extern void __enable_irq(struct irq_desc *desc, unsigned int irq, bool resume);
|
||||
|
||||
extern struct lock_class_key irq_desc_lock_class;
|
||||
extern void init_kstat_irqs(struct irq_desc *desc, int cpu, int nr);
|
||||
extern void init_kstat_irqs(struct irq_desc *desc, int node, int nr);
|
||||
extern void clear_kstat_irqs(struct irq_desc *desc);
|
||||
extern spinlock_t sparse_irq_lock;
|
||||
|
||||
|
|
|
|||
|
|
@ -15,9 +15,9 @@
|
|||
|
||||
static void init_copy_kstat_irqs(struct irq_desc *old_desc,
|
||||
struct irq_desc *desc,
|
||||
int cpu, int nr)
|
||||
int node, int nr)
|
||||
{
|
||||
init_kstat_irqs(desc, cpu, nr);
|
||||
init_kstat_irqs(desc, node, nr);
|
||||
|
||||
if (desc->kstat_irqs != old_desc->kstat_irqs)
|
||||
memcpy(desc->kstat_irqs, old_desc->kstat_irqs,
|
||||
|
|
@ -34,20 +34,20 @@ static void free_kstat_irqs(struct irq_desc *old_desc, struct irq_desc *desc)
|
|||
}
|
||||
|
||||
static bool init_copy_one_irq_desc(int irq, struct irq_desc *old_desc,
|
||||
struct irq_desc *desc, int cpu)
|
||||
struct irq_desc *desc, int node)
|
||||
{
|
||||
memcpy(desc, old_desc, sizeof(struct irq_desc));
|
||||
if (!alloc_desc_masks(desc, cpu, false)) {
|
||||
if (!alloc_desc_masks(desc, node, false)) {
|
||||
printk(KERN_ERR "irq %d: can not get new irq_desc cpumask "
|
||||
"for migration.\n", irq);
|
||||
return false;
|
||||
}
|
||||
spin_lock_init(&desc->lock);
|
||||
desc->cpu = cpu;
|
||||
desc->node = node;
|
||||
lockdep_set_class(&desc->lock, &irq_desc_lock_class);
|
||||
init_copy_kstat_irqs(old_desc, desc, cpu, nr_cpu_ids);
|
||||
init_copy_kstat_irqs(old_desc, desc, node, nr_cpu_ids);
|
||||
init_copy_desc_masks(old_desc, desc);
|
||||
arch_init_copy_chip_data(old_desc, desc, cpu);
|
||||
arch_init_copy_chip_data(old_desc, desc, node);
|
||||
return true;
|
||||
}
|
||||
|
||||
|
|
@ -59,12 +59,11 @@ static void free_one_irq_desc(struct irq_desc *old_desc, struct irq_desc *desc)
|
|||
}
|
||||
|
||||
static struct irq_desc *__real_move_irq_desc(struct irq_desc *old_desc,
|
||||
int cpu)
|
||||
int node)
|
||||
{
|
||||
struct irq_desc *desc;
|
||||
unsigned int irq;
|
||||
unsigned long flags;
|
||||
int node;
|
||||
|
||||
irq = old_desc->irq;
|
||||
|
||||
|
|
@ -76,7 +75,6 @@ static struct irq_desc *__real_move_irq_desc(struct irq_desc *old_desc,
|
|||
if (desc && old_desc != desc)
|
||||
goto out_unlock;
|
||||
|
||||
node = cpu_to_node(cpu);
|
||||
desc = kzalloc_node(sizeof(*desc), GFP_ATOMIC, node);
|
||||
if (!desc) {
|
||||
printk(KERN_ERR "irq %d: can not get new irq_desc "
|
||||
|
|
@ -85,7 +83,7 @@ static struct irq_desc *__real_move_irq_desc(struct irq_desc *old_desc,
|
|||
desc = old_desc;
|
||||
goto out_unlock;
|
||||
}
|
||||
if (!init_copy_one_irq_desc(irq, old_desc, desc, cpu)) {
|
||||
if (!init_copy_one_irq_desc(irq, old_desc, desc, node)) {
|
||||
/* still use old one */
|
||||
kfree(desc);
|
||||
desc = old_desc;
|
||||
|
|
@ -107,24 +105,14 @@ out_unlock:
|
|||
return desc;
|
||||
}
|
||||
|
||||
struct irq_desc *move_irq_desc(struct irq_desc *desc, int cpu)
|
||||
struct irq_desc *move_irq_desc(struct irq_desc *desc, int node)
|
||||
{
|
||||
int old_cpu;
|
||||
int node, old_node;
|
||||
|
||||
/* those all static, do move them */
|
||||
if (desc->irq < NR_IRQS_LEGACY)
|
||||
return desc;
|
||||
|
||||
old_cpu = desc->cpu;
|
||||
if (old_cpu != cpu) {
|
||||
node = cpu_to_node(cpu);
|
||||
old_node = cpu_to_node(old_cpu);
|
||||
if (old_node != node)
|
||||
desc = __real_move_irq_desc(desc, cpu);
|
||||
else
|
||||
desc->cpu = cpu;
|
||||
}
|
||||
if (desc->node != node)
|
||||
desc = __real_move_irq_desc(desc, node);
|
||||
|
||||
return desc;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -828,7 +828,7 @@ int __init __weak arch_early_irq_init(void)
|
|||
return 0;
|
||||
}
|
||||
|
||||
int __weak arch_init_chip_data(struct irq_desc *desc, int cpu)
|
||||
int __weak arch_init_chip_data(struct irq_desc *desc, int node)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue