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x86: Implement new allocator functions

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Implement new allocator functions which make use of the core changes.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Thomas Gleixner 2010-10-06 22:14:21 +02:00
parent 6e2fff50a5
commit 08c33db6d0
1 changed files with 47 additions and 7 deletions
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54
arch/x86/kernel/apic/io_apic.c
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@ -199,6 +199,13 @@ out_cfg:
return NULL;
}
static void free_irq_cfg(struct irq_cfg *cfg)
{
free_cpumask_var(cfg->domain);
free_cpumask_var(cfg->old_domain);
kfree(cfg);
}
int arch_init_chip_data(struct irq_desc *desc, int node)
{
struct irq_cfg *cfg;
@ -299,13 +306,6 @@ void arch_init_copy_chip_data(struct irq_desc *old_desc,
init_copy_irq_2_pin(old_cfg, cfg, node);
}
static void free_irq_cfg(struct irq_cfg *cfg)
{
free_cpumask_var(cfg->domain);
free_cpumask_var(cfg->old_domain);
kfree(cfg);
}
void arch_free_chip_data(struct irq_desc *old_desc, struct irq_desc *desc)
{
struct irq_cfg *old_cfg, *cfg;
@ -325,13 +325,53 @@ void arch_free_chip_data(struct irq_desc *old_desc, struct irq_desc *desc)
/* end for move_irq_desc */
#else
struct irq_cfg *irq_cfg(unsigned int irq)
{
return irq < nr_irqs ? irq_cfgx + irq : NULL;
}
static struct irq_cfg *get_one_free_irq_cfg(unsigned int irq, int node)
{
return irq_cfgx + irq;
}
static inline void free_irq_cfg(struct irq_cfg *cfg) { }
#endif
static struct irq_cfg *alloc_irq_and_cfg_at(unsigned int at, int node)
{
int res = irq_alloc_desc_at(at, node);
struct irq_cfg *cfg;
if (res < 0) {
if (res != -EEXIST)
return NULL;
cfg = get_irq_chip_data(at);
if (cfg)
return cfg;
}
cfg = get_one_free_irq_cfg(node);
if (cfg)
set_irq_chip_data(at, cfg);
else
irq_free_desc(at);
return cfg;
}
static int alloc_irq_from(unsigned int from, int node)
{
return irq_alloc_desc_from(from, node);
}
static void free_irq_at(unsigned int at, struct irq_cfg *cfg)
{
free_irq_cfg(cfg);
irq_free_desc(at);
}
struct io_apic {
unsigned int index;
unsigned int unused[3];