From: Yong Zhao <yong.zhao@amd.com>
Date: Fri, 13 Jul 2018 16:17:45 -0400
Subject: drm/amdkfd: Avoid flooding dmesg on Raven due to IOMMU issues
Git-commit: eab69801cf4388aeba2c730ce4db746ae164eada
Patch-mainline: v4.19-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
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>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/amdkfd/kfd_iommu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_iommu.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_iommu.c
@@ -190,7 +190,7 @@ static int iommu_invalid_ppr_cb(struct p
{
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),