x86: use dyn_array in io_apic_xx.c
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/io_apic_32.c b/arch/x86/kernel/io_apic_32.c
index d382990..7f2bcc3 100644
--- a/arch/x86/kernel/io_apic_32.c
+++ b/arch/x86/kernel/io_apic_32.c
@@ -70,7 +70,7 @@
*/
int sis_apic_bug = -1;
-int first_free_entry = NR_IRQS;
+int first_free_entry;
/*
* # of IRQ routing registers
*/
@@ -98,10 +98,7 @@
* Rough estimation of how many shared IRQs there are, can
* be changed anytime.
*/
-#define MAX_PLUS_SHARED_IRQS NR_IRQS
-#define PIN_MAP_SIZE (MAX_PLUS_SHARED_IRQS + NR_IRQS)
-
-int pin_map_size = PIN_MAP_SIZE;
+int pin_map_size;
/*
* This is performance-critical, we want to do it O(1)
@@ -112,7 +109,9 @@
static struct irq_pin_list {
int apic, pin, next;
-} irq_2_pin[PIN_MAP_SIZE];
+} *irq_2_pin;
+
+DEFINE_DYN_ARRAY(irq_2_pin, sizeof(struct irq_pin_list), pin_map_size, 16, NULL);
struct io_apic {
unsigned int index;
@@ -403,9 +402,28 @@
#define CPU_TO_PACKAGEINDEX(i) (first_cpu(per_cpu(cpu_sibling_map, i)))
-static cpumask_t balance_irq_affinity[NR_IRQS] = {
- [0 ... NR_IRQS-1] = CPU_MASK_ALL
-};
+static cpumask_t balance_irq_affinity_init __initdata = CPU_MASK_ALL;
+
+static cpumask_t *balance_irq_affinity;
+
+
+static void __init irq_affinity_init_work(void *data)
+{
+ struct dyn_array *da = data;
+
+ int i;
+ struct balance_irq_affinity *affinity;
+
+ affinity = *da->name;
+
+ for (i = 0; i < *da->nr; i++)
+ memcpy(&affinity[i], &balance_irq_affinity_init,
+ sizeof(struct balance_irq_affinity));
+
+}
+
+DEFINE_DYN_ARRAY(balance_irq_affinity, sizeof(struct balance_irq_affinity), nr_irqs, PAGE_SIZE, irq_affinity_init_work);
+
void set_balance_irq_affinity(unsigned int irq, cpumask_t mask)
{
@@ -1170,14 +1188,28 @@
}
/* irq_vectors is indexed by the sum of all RTEs in all I/O APICs. */
-static u8 irq_vector[NR_IRQ_VECTORS] __read_mostly = { FIRST_DEVICE_VECTOR , 0 };
+static u8 irq_vector_init_first __initdata = FIRST_DEVICE_VECTOR;
+static u8 *irq_vector;
+
+static void __init irq_vector_init_work(void *data)
+{
+ struct dyn_array *da = data;
+
+ u8 *irq_vec;
+
+ irq_vec = *da->name;
+
+ irq_vec[0] = irq_vector_init_first;
+}
+
+DEFINE_DYN_ARRAY(irq_vector, sizeof(u8), nr_irqs, PAGE_SIZE, irq_vector_init_work);
static int __assign_irq_vector(int irq)
{
static int current_vector = FIRST_DEVICE_VECTOR, current_offset;
int vector, offset;
- BUG_ON((unsigned)irq >= NR_IRQ_VECTORS);
+ BUG_ON((unsigned)irq >= nr_irqs);
if (irq_vector[irq] > 0)
return irq_vector[irq];