Patchwork PPC: Initialize OpenPIC properly

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Submitter Alexander Graf
Date Dec. 18, 2009, 10:37 p.m.
Message ID <1261175847-16915-1-git-send-email-agraf@suse.de>
Download mbox | patch
Permalink /patch/41434/
State New
Headers show

Comments

Alexander Graf - Dec. 18, 2009, 10:37 p.m.
When lowering an IRQ line, we search for the line we're supposed to lower.

Usually we run into an optimization there that queues up interrupts. This
queue ends with -1. Unfortunately we didn't set the first item to -1.

This patch fixes this, making interrupts work on PPC64.

Signed-off-by: Alexander Graf <agraf@suse.de>
---
 hw/openpic.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

Patch

diff --git a/hw/openpic.c b/hw/openpic.c
index 42db59d..1e4b3c1 100644
--- a/hw/openpic.c
+++ b/hw/openpic.c
@@ -442,7 +442,9 @@  static void openpic_reset (void *opaque)
 	opp->dst[i].pctp      = 0x0000000F;
 	opp->dst[i].pcsr      = 0x00000000;
 	memset(&opp->dst[i].raised, 0, sizeof(IRQ_queue_t));
+        opp->dst[i].raised.next = -1;
 	memset(&opp->dst[i].servicing, 0, sizeof(IRQ_queue_t));
+        opp->dst[i].servicing.next = -1;
     }
     /* Initialise timers */
     for (i = 0; i < MAX_TMR; i++) {