On Tue, Mar 26, 2013 at 04:20:54PM +0100, Andreas Degert wrote:
> There is a third sound device:
>
> 04:00.0 Multimedia audio controller: Xilinx Corporation RME Hammerfall
> DSP (rev 35)
>
> (at the end of the lspci listing in my first mail). This is the one that
> doesn't
> work, it's connected via cardbus (yenta driver), so it appears a bit further
> down in the dmesg output.
Ah, I see. But still, this device is in the alias range and thus also
covered by IVRS. It should use 00:14.4 as the request-id.
Can you try the attached debug-patch, boot and send me dmesg again? This
should sched some light onto the problem.
Thanks,
Joerg
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index c1c74e0..b96af8a 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -244,21 +244,29 @@ static bool check_device(struct device *dev)
{
u16 devid;
- if (!dev || !dev->dma_mask)
+ if (!dev || !dev->dma_mask) {
+ pr_err("AMD-Vi: Device %s has no dma_mask\n", dev_name(dev));
return false;
+ }
/* No device or no PCI device */
- if (dev->bus != &pci_bus_type)
+ if (dev->bus != &pci_bus_type) {
+ pr_err("AMD-Vi: Device %s is not PCI\n", dev_name(dev));
return false;
+ }
devid = get_device_id(dev);
/* Out of our scope? */
- if (devid > amd_iommu_last_bdf)
+ if (devid > amd_iommu_last_bdf) {
+ pr_err("AMD-Vi: Device %s is out of range\n", dev_name(dev));
return false;
+ }
- if (amd_iommu_rlookup_table[devid] == NULL)
+ if (amd_iommu_rlookup_table[devid] == NULL) {
+ pr_err("AMD-Vi: Device %s has no responsible IOMMU\n", dev_name(dev));
return false;
+ }
return true;
}
@@ -2448,6 +2456,8 @@ static int device_change_notifier(struct notifier_block *nb,
break;
case BUS_NOTIFY_ADD_DEVICE:
+ pr_info("AMD-Vi: Adding device %s\n", dev_name(dev));
+
iommu_init_device(dev);
/*
@@ -2457,6 +2467,7 @@ static int device_change_notifier(struct notifier_block *nb,
dev_data = get_dev_data(dev);
if (iommu_pass_through || dev_data->iommu_v2) {
+ pr_info("AMD-Vi: Using pt-domain for %s\n", dev_name(dev));
dev_data->passthrough = true;
attach_device(dev, pt_domain);
break;
@@ -2466,11 +2477,15 @@ static int device_change_notifier(struct notifier_block *nb,
/* allocate a protection domain if a device is added */
dma_domain = find_protection_domain(devid);
- if (dma_domain)
+ if (dma_domain) {
+ pr_info("AMD-Vi: Already dma_domain for %s\n", dev_name(dev));
goto out;
+ }
dma_domain = dma_ops_domain_alloc();
- if (!dma_domain)
+ if (!dma_domain) {
+ pr_info("AMD-Vi: Can't alloc dma_domain for %s\n", dev_name(dev));
goto out;
+ }
dma_domain->target_dev = devid;
spin_lock_irqsave(&iommu_pd_list_lock, flags);
@@ -2484,6 +2499,8 @@ static int device_change_notifier(struct notifier_block *nb,
break;
case BUS_NOTIFY_DEL_DEVICE:
+ pr_info("AMD-Vi: Removing device %s\n", dev_name(dev));
+
iommu_uninit_device(dev);
default:
@@ -3122,10 +3139,13 @@ static unsigned device_dma_ops_init(void)
dev_data = get_dev_data(&pdev->dev);
- if (!dev_data->passthrough)
+ if (!dev_data->passthrough) {
+ pr_info("AMD-Vi: Initializing %s to amd_iommu_dma_ops\n", dev_name(&pdev->dev));
pdev->dev.archdata.dma_ops = &amd_iommu_dma_ops;
- else
+ } else {
+ pr_info("AMD-Vi: Initializing %s to nommu_dma_ops\n", dev_name(&pdev->dev));
pdev->dev.archdata.dma_ops = &nommu_dma_ops;
+ }
}
return unhandled;
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