---

yaml --- r: 63809 b: refs/heads/master c: b434e71 h: refs/heads/master i: 63807: e20f6fe v: v3
git-mirror · Aug 9, 2007 · 21c5d11 · 21c5d11
1 parent f750e09
commit 21c5d11
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Showing 5 changed files with 29 additions and 66 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 6c70b6fc7b6fc321636a014082d9e32333da1f80
+refs/heads/master: b434e71933aa0519ee042c01419db76b7dcc058e
diff --git a/trunk/arch/sparc64/kernel/hvtramp.S b/trunk/arch/sparc64/kernel/hvtramp.S
@@ -115,11 +115,8 @@ hv_cpu_startup:
 	call		hard_smp_processor_id
 	 nop
 
-	mov		%o0, %o1
-	mov		0, %o0
-	mov		0, %o2
-	call		sun4v_init_mondo_queues
-	 mov		1, %o3
+	call		sun4v_register_mondo_queues
+	 nop
 
 	call		init_cur_cpu_trap
 	 mov		%g6, %o0

diff --git a/trunk/arch/sparc64/kernel/irq.c b/trunk/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

diff --git a/trunk/arch/sparc64/kernel/smp.c b/trunk/arch/sparc64/kernel/smp.c
@@ -334,8 +334,6 @@ static void ldom_startcpu_cpuid(unsigned int cpu, unsigned long thread_reg)
 }
 #endif
 
-extern void sun4v_init_mondo_queues(int use_bootmem, int cpu, int alloc, int load);
-
 extern unsigned long sparc64_cpu_startup;
 
 /* The OBP cpu startup callback truncates the 3rd arg cookie to
@@ -359,9 +357,6 @@ static int __devinit smp_boot_one_cpu(unsigned int cpu)
 	cpu_new_thread = task_thread_info(p);
 
 	if (tlb_type == hypervisor) {
-		/* Alloc the mondo queues, cpu will load them.  */
-		sun4v_init_mondo_queues(0, cpu, 1, 0);
-
 #if defined(CONFIG_SUN_LDOMS) && defined(CONFIG_HOTPLUG_CPU)
 		if (ldom_domaining_enabled)
 			ldom_startcpu_cpuid(cpu,

diff --git a/trunk/arch/sparc64/kernel/trampoline.S b/trunk/arch/sparc64/kernel/trampoline.S
@@ -366,11 +366,8 @@ after_lock_tlb:
 	call		hard_smp_processor_id
 	 nop
 
-	mov		%o0, %o1
-	mov		0, %o0
-	mov		0, %o2
-	call		sun4v_init_mondo_queues
-	 mov		1, %o3
+	call		sun4v_register_mondo_queues
+	 nop
 
 1:	call		init_cur_cpu_trap
 	 ldx		[%l0], %o0