Messages in this thread Patch in this message | | | From | Joerg Roedel <> | Subject | [PATCH 11/16] iommu/amd: Add call-back routine for HPET MSI | Date | Fri, 28 Sep 2012 14:24:01 +0200 |
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Add a routine to setup a HPET MSI interrupt for remapping.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com> --- drivers/iommu/amd_iommu.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 84efecd..af245f4 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -4200,4 +4200,30 @@ static int msi_setup_irq(struct pci_dev *pdev, unsigned int irq, return 0; } +static int setup_hpet_msi(unsigned int irq, unsigned int id) +{ + struct irq_2_iommu *irte_info; + struct irq_cfg *cfg; + int index, devid; + + cfg = irq_get_chip_data(irq); + if (!cfg) + return -EINVAL; + + irte_info = &cfg->irq_2_iommu; + devid = get_hpet_devid(id); + if (devid < 0) + return devid; + + index = alloc_irq_index(cfg, devid, 1); + if (index < 0) + return index; + + irte_info->sub_handle = devid; + irte_info->irte_index = index; + irte_info->iommu = (void *)cfg; + + return 0; +} + #endif -- 1.7.9.5
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