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genirq: Move field 'node' from irq_data into irq_common_data 

NUMA node information is per-irq instead of per-irqchip, so move it into
struct irq_common_data. Also use CONFIG_NUMA to guard irq_common_data.node.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Kevin Cernekee <cernekee@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Link: http://lkml.kernel.org/r/1433145945-789-8-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Jiang Liu 2015-06-01 16:05:16 +08:00 committed by Thomas Gleixner
parent 4df7f54d16
commit 449e9cae58
4 changed files with 18 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
include/linux/irq.h
View File

@ -129,9 +129,13 @@ struct irq_domain;
* struct irq_common_data - per irq data shared by all irqchips
* @state_use_accessors: status information for irq chip functions.
* Use accessor functions to deal with it
* @node: node index useful for balancing
*/
struct irq_common_data {
unsigned int state_use_accessors;
#ifdef CONFIG_NUMA
unsigned int node;
#endif
};
/**
@ -139,7 +143,6 @@ struct irq_common_data {
* @mask: precomputed bitmask for accessing the chip registers
* @irq: interrupt number
* @hwirq: hardware interrupt number, local to the interrupt domain
* @node: node index useful for balancing
* @common: point to data shared by all irqchips
* @chip: low level interrupt hardware access
* @domain: Interrupt translation domain; responsible for mapping
@ -156,7 +159,6 @@ struct irq_data {
u32 mask;
unsigned int irq;
unsigned long hwirq;
unsigned int node;
struct irq_common_data *common;
struct irq_chip *chip;
struct irq_domain *domain;
@ -664,9 +666,18 @@ static inline u32 irq_get_trigger_type(unsigned int irq)
return d ? irqd_get_trigger_type(d) : 0;
}
static inline int irq_common_data_get_node(struct irq_common_data *d)
{
#ifdef CONFIG_NUMA
return d->node;
#else
return 0;
#endif
}
static inline int irq_data_get_node(struct irq_data *d)
{
return d->node;
return irq_common_data_get_node(d->common);
}
static inline struct cpumask *irq_get_affinity_mask(int irq)

2
kernel/irq/internals.h
View File

@ -194,7 +194,7 @@ static inline void kstat_incr_irqs_this_cpu(struct irq_desc *desc)
static inline int irq_desc_get_node(struct irq_desc *desc)
{
return irq_data_get_node(&desc->irq_data);
return irq_common_data_get_node(&desc->irq_common_data);
}
#ifdef CONFIG_PM_SLEEP

4
kernel/irq/irqdesc.c
View File

@ -52,11 +52,13 @@ static int alloc_masks(struct irq_desc *desc, gfp_t gfp, int node)
static void desc_smp_init(struct irq_desc *desc, int node)
{
desc->irq_data.node = node;
cpumask_copy(desc->irq_data.affinity, irq_default_affinity);
#ifdef CONFIG_GENERIC_PENDING_IRQ
cpumask_clear(desc->pending_mask);
#endif
#ifdef CONFIG_NUMA
desc->irq_common_data.node = node;
#endif
}
#else

1
kernel/irq/irqdomain.c
View File

@ -844,7 +844,6 @@ static struct irq_data *irq_domain_insert_irq_data(struct irq_domain *domain,
child->parent_data = irq_data;
irq_data->irq = child->irq;
irq_data->common = child->common;
irq_data->node = child->node;
irq_data->domain = domain;
}