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[RFC,v2,6/9] irq: bypass: add active field on producer side

Message ID 1436189083-32527-7-git-send-email-eric.auger@linaro.org
State New
Headers show

Commit Message

Auger Eric July 6, 2015, 1:24 p.m. UTC 
An active boolean is introduced on producer side: it reflects whether
the source is active (at interrupt controller level or at VFIO level
- automasked -).

This is a temporary hack for ARM IRQ forwarding with vfio platform.
I think the connect and disconnect should become callbacks too.
This would make possible to handle error in the process. Typically
active could be returned by producer->stop and analyzed before going
further. in that case the list_add only if connect returns 0.

Signed-off-by: Eric Auger <eric.auger@linaro.org>
---
 include/linux/irqbypass.h | 2 ++
 1 file changed, 2 insertions(+)
diff mbox

Patch

diff --git a/include/linux/irqbypass.h b/include/linux/irqbypass.h
index 8f62235..c89c3a8 100644
--- a/include/linux/irqbypass.h
+++ b/include/linux/irqbypass.h
@@ -9,6 +9,8 @@  struct irq_bypass_producer {
 	struct list_head node;
 	void *token;
 	int irq; /* linux irq */
+	/* is irq active at irqchip or VFIO masked? */
+	bool active;
 	void (*stop)(struct irq_bypass_producer *);
 	void (*resume)(struct irq_bypass_producer *);
 	void (*add_consumer)(struct irq_bypass_producer *,