Commit-ID: 72a8edc2d9134c2895eac2fec5eecf8230a05c96
Gitweb: https://git.kernel.org/tip/72a8edc2d9134c2895eac2fec5eecf8230a05c96
Author: Marc Zyngier <marc.zyng...@arm.com>
AuthorDate: Fri, 22 Jun 2018 10:52:48 +0100
Committer: Thomas Gleixner <t...@linutronix.de>
CommitDate: Fri, 22 Jun 2018 14:22:00 +0200
genirq/debugfs: Add missing IRQCHIP_SUPPORTS_LEVEL_MSI debug
Debug is missing the IRQCHIP_SUPPORTS_LEVEL_MSI debug entry, making debugfs
slightly less useful.
Take this opportunity to also add a missing comment in the definition of
IRQCHIP_SUPPORTS_LEVEL_MSI.
Fixes: 6988e0e0d283 ("genirq/msi: Limit level-triggered MSI to platform
devices")
Signed-off-by: Marc Zyngier <marc.zyng...@arm.com>
Signed-off-by: Thomas Gleixner <t...@linutronix.de>
Cc: Jason Cooper <ja...@lakedaemon.net>
Cc: Alexandre Belloni <alexandre.bell...@bootlin.com>
Cc: Yang Yingliang <yangyingli...@huawei.com>
Cc: Sumit Garg <sumit.g...@linaro.org>
Link: https://lkml.kernel.org/r/20180622095254.5906-2-marc.zyng...@arm.com
---
include/linux/irq.h | 1 +
kernel/irq/debugfs.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 4bd2f34947f4..201de12a9957 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -503,6 +503,7 @@ struct irq_chip {
* IRQCHIP_SKIP_SET_WAKE: Skip chip.irq_set_wake(), for this irq chip
* IRQCHIP_ONESHOT_SAFE: One shot does not require mask/unmask
* IRQCHIP_EOI_THREADED: Chip requires eoi() on unmask in threaded mode
+ * IRQCHIP_SUPPORTS_LEVEL_MSI Chip can provide two doorbells for Level MSIs
*/
enum {
IRQCHIP_SET_TYPE_MASKED = (1 << 0),
diff --git a/kernel/irq/debugfs.c b/kernel/irq/debugfs.c
index 4dadeb3d6666..6f636136cccc 100644
--- a/kernel/irq/debugfs.c
+++ b/kernel/irq/debugfs.c
@@ -55,6 +55,7 @@ static const struct irq_bit_descr irqchip_flags[] = {
BIT_MASK_DESCR(IRQCHIP_SKIP_SET_WAKE),
BIT_MASK_DESCR(IRQCHIP_ONESHOT_SAFE),
BIT_MASK_DESCR(IRQCHIP_EOI_THREADED),
+ BIT_MASK_DESCR(IRQCHIP_SUPPORTS_LEVEL_MSI),
};
static void
