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| author |   Marc Zyngier <maz@kernel.org> | 2020-11-29 13:52:07 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-12-11 14:47:50 +0000 |
| commit | 5fe71d271df8c05e1060c0184764eba18b17a96f (patch) | |
| tree | 9f8332a3fc3a82b75f227f58af3325c5e5c3b22e /drivers/irqchip | |
| parent | platform-msi: Track shared domain allocation (diff) | |
| download | linux-dev-5fe71d271df8c05e1060c0184764eba18b17a96f.tar.xz linux-dev-5fe71d271df8c05e1060c0184764eba18b17a96f.zip | |
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.c | 3 |
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); |