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Commit 10397e40 authored by David S. Miller's avatar David S. Miller
Browse files

[SPARC64]: Allocate ivector_table dynamically. 



Shrinks kernel by 16K compared to before the IVEC physical
address changes.

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent eb2d8d60

arch/sparc64/kernel/irq.c

+11 −11
Original line number Diff line number Diff line
@@ -64,7 +64,7 @@ struct ino_bucket { 
};



#define NUM_IVECS	(IMAP_INR + 1)

struct ino_bucket ivector_table[NUM_IVECS] __attribute__ ((aligned (SMP_CACHE_BYTES)));

struct ino_bucket *ivector_table;

unsigned long ivector_table_pa;



#define __irq_ino(irq) \
@@ -928,22 +928,22 @@ static struct irqaction timer_irq_action = { 
	.name = "timer",

};



/* XXX Belongs in a common location. XXX */

static unsigned long kimage_addr_to_ra(void *p)

{

	unsigned long val = (unsigned long) p;



	return kern_base + (val - KERNBASE);

}



/* Only invoked on boot processor. */

void __init init_IRQ(void)

{

	unsigned long size;



	map_prom_timers();

	kill_prom_timer();

	memset(&ivector_table[0], 0, sizeof(ivector_table));



	ivector_table_pa = kimage_addr_to_ra(&ivector_table[0]);

	size = sizeof(struct ino_bucket) * NUM_IVECS;

	ivector_table = alloc_bootmem_low(size);

	if (!ivector_table) {

		prom_printf("Fatal error, cannot allocate ivector_table\n");

		prom_halt();

	}



	ivector_table_pa = __pa(ivector_table);



	if (tlb_type == hypervisor)

		sun4v_init_mondo_queues();