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drm/amdkfd: Avoid flooding dmesg on Raven due to IOMMU issues 

On Raven Invalid PPRs (peripheral page requests) can be reported
because multiple PPRs can be still queued when memory is freed.
Apply a rate limit to avoid flooding the log in this case.

Signed-off-by: Yong Zhao <yong.zhao@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
This commit is contained in:
Yong Zhao 2018-07-13 16:17:45 -04:00 committed by Oded Gabbay
parent 98bb92222e
commit eab69801cf
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/amdkfd/kfd_iommu.c
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@ -190,7 +190,7 @@ static int iommu_invalid_ppr_cb(struct pci_dev *pdev, int pasid,
{
struct kfd_dev *dev;
dev_warn(kfd_device,
dev_warn_ratelimited(kfd_device,
"Invalid PPR device %x:%x.%x pasid %d address 0x%lX flags 0x%X",
PCI_BUS_NUM(pdev->devfn),
PCI_SLOT(pdev->devfn),