Thread (7 messages) 7 messages, 2 authors, 2013-01-30
STALE4884d
Revisions (2)
  1. v1 [diff vs current]
  2. v2 current

[PATCH v2 1/5] arm: mvebu: Add support for local interrupt

From: Gregory CLEMENT <hidden>
Date: 2013-01-25 17:33:11
Also in: linux-devicetree, lkml
Subsystem: arm port, arm/marvell kirkwood and armada 370, 375, 38x, 39x, xp, 3700, 7k/8k, cn9130 soc support, the rest · Maintainers: Russell King, Andrew Lunn, Gregory Clement, Sebastian Hesselbarth, Linus Torvalds

MPIC allows the use of private interrupt for each CPUs. The 28th first
interrupts are per-cpu. This patch adds support to use them.

Signed-off-by: Gregory CLEMENT <redacted>
---
 arch/arm/mach-mvebu/irq-armada-370-xp.c |   15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/arch/arm/mach-mvebu/irq-armada-370-xp.c b/arch/arm/mach-mvebu/irq-armada-370-xp.c
index f99a4a2..274ff58 100644
--- a/arch/arm/mach-mvebu/irq-armada-370-xp.c
+++ b/arch/arm/mach-mvebu/irq-armada-370-xp.c
@@ -145,10 +145,17 @@ static int armada_370_xp_mpic_irq_map(struct irq_domain *h,
 {
 	armada_370_xp_irq_mask(irq_get_irq_data(virq));
 	writel(hw, main_int_base + ARMADA_370_XP_INT_SET_ENABLE_OFFS);
-
-	irq_set_chip_and_handler(virq, &armada_370_xp_irq_chip,
-				 handle_level_irq);
 	irq_set_status_flags(virq, IRQ_LEVEL);
+
+	if (hw < ARMADA_370_XP_MAX_PER_CPU_IRQS) {
+		irq_set_percpu_devid(virq);
+		irq_set_chip_and_handler(virq, &armada_370_xp_irq_chip,
+					handle_percpu_devid_irq);
+
+	} else {
+		irq_set_chip_and_handler(virq, &armada_370_xp_irq_chip,
+					handle_level_irq);
+	}
 	set_irq_flags(virq, IRQF_VALID | IRQF_PROBE);
 
 	return 0;
@@ -245,7 +252,7 @@ asmlinkage void __exception_irq_entry armada_370_xp_handle_irq(struct pt_regs
 		if (irqnr > 1022)
 			break;
 
-		if (irqnr >= 8) {
+		if (irqnr > 0) {
 			irqnr =	irq_find_mapping(armada_370_xp_mpic_domain,
 					irqnr);
 			handle_IRQ(irqnr, regs);
-- 
1.7.9.5
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