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irqchip/gic-v3-its: Tag ITS device as shared if allocating for a proxy device

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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
This commit is contained in:
Marc Zyngier
2020-11-29 13:52:07 +00:00
parent 91f90daa4f
commit 5fe71d271d
1 changed files with 3 additions and 0 deletions
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3
drivers/irqchip/irq-gic-v3-its.c
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@@ -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);