From 5fe71d271df8c05e1060c0184764eba18b17a96f Mon Sep 17 00:00:00 2001 From: Marc Zyngier Date: Sun, 29 Nov 2020 13:52:07 +0000 Subject: 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 Tested-by: John Garry Link: https://lore.kernel.org/r/20201129135208.680293-3-maz@kernel.org --- drivers/irqchip/irq-gic-v3-its.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/irqchip') 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); -- cgit v1.2.3