summaryrefslogtreecommitdiffstats
path: root/drivers/irqchip
diff options
context:
space:
mode:
authorMarc Zyngier <maz@kernel.org>2020-11-29 13:52:07 +0000
committerMarc Zyngier <maz@kernel.org>2020-12-11 14:47:50 +0000
commit5fe71d271df8c05e1060c0184764eba18b17a96f (patch)
tree9f8332a3fc3a82b75f227f58af3325c5e5c3b22e /drivers/irqchip
parent91f90daa4fb2b77db7aa25ef2e0206f2e3962665 (diff)
downloadlinux-5fe71d271df8c05e1060c0184764eba18b17a96f.tar.bz2
irqchip/gic-v3-its: Tag ITS device as shared if allocating for a proxy device
The ITS already has some notion of "shared" devices. Let's map the MSI_ALLOC_FLAGS_PROXY_DEVICE flag onto this internal property. Signed-off-by: Marc Zyngier <maz@kernel.org> Tested-by: John Garry <john.garry@huawei.com> Link: https://lore.kernel.org/r/20201129135208.680293-3-maz@kernel.org
Diffstat (limited to 'drivers/irqchip')
-rw-r--r--drivers/irqchip/irq-gic-v3-its.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index d74ef418e386..c951ad24d377 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -3487,6 +3487,9 @@ static int its_msi_prepare(struct irq_domain *domain, struct device *dev,
goto out;
}
+ if (info->flags & MSI_ALLOC_FLAGS_PROXY_DEVICE)
+ its_dev->shared = true;
+
pr_debug("ITT %d entries, %d bits\n", nvec, ilog2(nvec));
out:
mutex_unlock(&its->dev_alloc_lock);