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| author | Joerg Roedel <joro@8bytes.org> | 2012-09-26 12:44:49 +0200 |
|---|---|---|
| committer | Joerg Roedel <joro@8bytes.org> | 2013-01-28 12:42:48 +0100 |
| commit | 7601384f91be1a5ea60cb4ef6e28cad628e6cd1e (patch) | |
| tree | c5dd95d5edb2d89aad2f7df7f70f6897c44beec8 /drivers/iommu/irq_remapping.c | |
| parent | 2976fd8417f5744de3bb9109e4f30f353a36b1c0 (diff) | |
| download | linux-rpi3-7601384f91be1a5ea60cb4ef6e28cad628e6cd1e.tar.gz linux-rpi3-7601384f91be1a5ea60cb4ef6e28cad628e6cd1e.tar.bz2 linux-rpi3-7601384f91be1a5ea60cb4ef6e28cad628e6cd1e.zip | |
x86, msi: Introduce x86_msi.compose_msi_msg call-back
This call-back points to the right function for initializing
the msi_msg structure. The old code for msi_msg generation
was split up into the irq-remapped and the default case.
The irq-remapped case just calls into the specific Intel or
AMD implementation when the device is behind an IOMMU.
Otherwise the default function is called.
Signed-off-by: Joerg Roedel <joro@8bytes.org>
Acked-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/iommu/irq_remapping.c')
| -rw-r--r-- | drivers/iommu/irq_remapping.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c index 339260c98cf9..158091b345cb 100644 --- a/drivers/iommu/irq_remapping.c +++ b/drivers/iommu/irq_remapping.c @@ -150,6 +150,7 @@ static void __init irq_remapping_modify_x86_ops(void) x86_io_apic_ops.setup_entry = setup_ioapic_remapped_entry; x86_msi.setup_msi_irqs = irq_remapping_setup_msi_irqs; x86_msi.setup_hpet_msi = setup_hpet_msi_remapped; + x86_msi.compose_msi_msg = compose_remapped_msi_msg; } static __init int setup_nointremap(char *str) @@ -295,10 +296,12 @@ void compose_remapped_msi_msg(struct pci_dev *pdev, unsigned int irq, unsigned int dest, struct msi_msg *msg, u8 hpet_id) { - if (!remap_ops || !remap_ops->compose_msi_msg) - return; + struct irq_cfg *cfg = irq_get_chip_data(irq); - remap_ops->compose_msi_msg(pdev, irq, dest, msg, hpet_id); + if (!irq_remapped(cfg)) + native_compose_msi_msg(pdev, irq, dest, msg, hpet_id); + else if (remap_ops && remap_ops->compose_msi_msg) + remap_ops->compose_msi_msg(pdev, irq, dest, msg, hpet_id); } static int msi_alloc_remapped_irq(struct pci_dev *pdev, int irq, int nvec) |