From 10397e4069bbcc8219537e7c1e0d6a6935432156 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sat, 13 Oct 2007 21:43:31 -0700 Subject: [PATCH] [SPARC64]: Allocate ivector_table dynamically. Shrinks kernel by 16K compared to before the IVEC physical address changes. Signed-off-by: David S. Miller --- arch/sparc64/kernel/irq.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c index 26cdf47..5a92851 100644 --- a/arch/sparc64/kernel/irq.c +++ b/arch/sparc64/kernel/irq.c @@ -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(); -- 2.7.4