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Diffstat (limited to 'arch/sparc64/kernel/irq.c')
-rw-r--r--arch/sparc64/kernel/irq.c74
1 files changed, 24 insertions, 50 deletions
diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c
index db31bf6b42d..384abf410cf 100644
--- a/arch/sparc64/kernel/irq.c
+++ b/arch/sparc64/kernel/irq.c
@@ -929,7 +929,7 @@ static void __cpuinit register_one_mondo(unsigned long paddr, unsigned long type
}
}
-static void __cpuinit sun4v_register_mondo_queues(int this_cpu)
+void __cpuinit sun4v_register_mondo_queues(int this_cpu)
{
struct trap_per_cpu *tb = &trap_block[this_cpu];
@@ -943,20 +943,10 @@ static void __cpuinit sun4v_register_mondo_queues(int this_cpu)
tb->nonresum_qmask);
}
-static void __cpuinit alloc_one_mondo(unsigned long *pa_ptr, unsigned long qmask, int use_bootmem)
+static void __init alloc_one_mondo(unsigned long *pa_ptr, unsigned long qmask)
{
unsigned long size = PAGE_ALIGN(qmask + 1);
- unsigned long order = get_order(size);
- void *p = NULL;
-
- if (use_bootmem) {
- p = __alloc_bootmem_low(size, size, 0);
- } else {
- struct page *page = alloc_pages(GFP_ATOMIC | __GFP_ZERO, order);
- if (page)
- p = page_address(page);
- }
-
+ void *p = __alloc_bootmem_low(size, size, 0);
if (!p) {
prom_printf("SUN4V: Error, cannot allocate mondo queue.\n");
prom_halt();
@@ -965,19 +955,10 @@ static void __cpuinit alloc_one_mondo(unsigned long *pa_ptr, unsigned long qmask
*pa_ptr = __pa(p);
}
-static void __cpuinit alloc_one_kbuf(unsigned long *pa_ptr, unsigned long qmask, int use_bootmem)
+static void __init alloc_one_kbuf(unsigned long *pa_ptr, unsigned long qmask)
{
unsigned long size = PAGE_ALIGN(qmask + 1);
- unsigned long order = get_order(size);
- void *p = NULL;
-
- if (use_bootmem) {
- p = __alloc_bootmem_low(size, size, 0);
- } else {
- struct page *page = alloc_pages(GFP_ATOMIC | __GFP_ZERO, order);
- if (page)
- p = page_address(page);
- }
+ void *p = __alloc_bootmem_low(size, size, 0);
if (!p) {
prom_printf("SUN4V: Error, cannot allocate kbuf page.\n");
@@ -987,18 +968,14 @@ static void __cpuinit alloc_one_kbuf(unsigned long *pa_ptr, unsigned long qmask,
*pa_ptr = __pa(p);
}
-static void __cpuinit init_cpu_send_mondo_info(struct trap_per_cpu *tb, int use_bootmem)
+static void __init init_cpu_send_mondo_info(struct trap_per_cpu *tb)
{
#ifdef CONFIG_SMP
void *page;
BUILD_BUG_ON((NR_CPUS * sizeof(u16)) > (PAGE_SIZE - 64));
- if (use_bootmem)
- page = alloc_bootmem_low_pages(PAGE_SIZE);
- else
- page = (void *) get_zeroed_page(GFP_ATOMIC);
-
+ page = alloc_bootmem_low_pages(PAGE_SIZE);
if (!page) {
prom_printf("SUN4V: Error, cannot allocate cpu mondo page.\n");
prom_halt();
@@ -1009,30 +986,27 @@ static void __cpuinit init_cpu_send_mondo_info(struct trap_per_cpu *tb, int use_
#endif
}
-/* Allocate and register the mondo and error queues for this cpu. */
-void __cpuinit sun4v_init_mondo_queues(int use_bootmem, int cpu, int alloc, int load)
+/* Allocate mondo and error queues for all possible cpus. */
+static void __init sun4v_init_mondo_queues(void)
{
- struct trap_per_cpu *tb = &trap_block[cpu];
+ int cpu;
- if (alloc) {
- alloc_one_mondo(&tb->cpu_mondo_pa, tb->cpu_mondo_qmask, use_bootmem);
- alloc_one_mondo(&tb->dev_mondo_pa, tb->dev_mondo_qmask, use_bootmem);
- alloc_one_mondo(&tb->resum_mondo_pa, tb->resum_qmask, use_bootmem);
- alloc_one_kbuf(&tb->resum_kernel_buf_pa, tb->resum_qmask, use_bootmem);
- alloc_one_mondo(&tb->nonresum_mondo_pa, tb->nonresum_qmask, use_bootmem);
- alloc_one_kbuf(&tb->nonresum_kernel_buf_pa, tb->nonresum_qmask, use_bootmem);
+ for_each_possible_cpu(cpu) {
+ struct trap_per_cpu *tb = &trap_block[cpu];
- init_cpu_send_mondo_info(tb, use_bootmem);
- }
+ alloc_one_mondo(&tb->cpu_mondo_pa, tb->cpu_mondo_qmask);
+ alloc_one_mondo(&tb->dev_mondo_pa, tb->dev_mondo_qmask);
+ alloc_one_mondo(&tb->resum_mondo_pa, tb->resum_qmask);
+ alloc_one_kbuf(&tb->resum_kernel_buf_pa, tb->resum_qmask);
+ alloc_one_mondo(&tb->nonresum_mondo_pa, tb->nonresum_qmask);
+ alloc_one_kbuf(&tb->nonresum_kernel_buf_pa,
+ tb->nonresum_qmask);
- if (load) {
- if (cpu != hard_smp_processor_id()) {
- prom_printf("SUN4V: init mondo on cpu %d not %d\n",
- cpu, hard_smp_processor_id());
- prom_halt();
- }
- sun4v_register_mondo_queues(cpu);
+ init_cpu_send_mondo_info(tb);
}
+
+ /* Load up the boot cpu's entries. */
+ sun4v_register_mondo_queues(hard_smp_processor_id());
}
static struct irqaction timer_irq_action = {
@@ -1047,7 +1021,7 @@ void __init init_IRQ(void)
memset(&ivector_table[0], 0, sizeof(ivector_table));
if (tlb_type == hypervisor)
- sun4v_init_mondo_queues(1, hard_smp_processor_id(), 1, 1);
+ sun4v_init_mondo_queues();
/* We need to clear any IRQ's pending in the soft interrupt
* registers, a spurious one could be left around from the