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Date: Thu, 5 Jul 2012 14:36:43 +0200 From: Joerg Roedel <joerg.roedel@....com> To: <iommu@...ts.linux-foundation.org> CC: <linux-kernel@...r.kernel.org>, Joerg Roedel <joerg.roedel@....com> Subject: [PATCH 23/28] iommu/amd: Add call-back routine for HPET MSI Add a routine to setup a HPET MSI interrupt for remapping. Signed-off-by: Joerg Roedel <joerg.roedel@....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 ee10f30..fed1395 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -4128,4 +4128,30 @@ 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_irte *irte_info; + struct irq_cfg *cfg; + int index, devid; + + cfg = irq_get_chip_data(irq); + if (!cfg) + return -EINVAL; + + irte_info = &cfg->irq_remap_info.irq_2_irte; + devid = get_hpet_devid(id); + if (devid < 0) + return devid; + + index = alloc_irq_index(cfg, devid, 1); + if (index < 0) + return index; + + irte_info->devid = devid; + irte_info->index = index; + cfg->remapped = true; + + return 0; +} + #endif -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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