Commit eab69801 authored Jul 13, 2018 by Yong Zhao Committed by Oded Gabbay Jul 13, 2018

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>

parent 98bb9222

drivers/gpu/drm/amd/amdkfd/kfd_iommu.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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),