From: Eliav Bar-ilan <eliavb@nvidia.com>
Date: Tue, 10 Sep 2024 16:44:16 -0300
Subject: iommu/amd: Fix argument order in amd_iommu_dev_flush_pasid_all()
Git-commit: 8386207f37e98453e1de3f51e50eeeea089103f9
Patch-mainline: v6.12-rc1
References: jsc#PED-10539

An incorrect argument order calling amd_iommu_dev_flush_pasid_pages()
causes improper flushing of the IOMMU, leaving the old value of GCR3 from
a previous process attached to the same PASID.

The function has the signature:

void amd_iommu_dev_flush_pasid_pages(struct iommu_dev_data *dev_data,
				     ioasid_t pasid, u64 address, size_t size)

Correct the argument order.

Cc: stable@vger.kernel.org
Fixes: 474bf01ed9f0 ("iommu/amd: Add support for device based TLB invalidation")
Signed-off-by: Eliav Bar-ilan <eliavb@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/0-v1-fc6bc37d8208+250b-amd_pasid_flush_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
 drivers/iommu/amd/iommu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index b19e8c0f48fa..6bc4030a6ba8 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -1552,8 +1552,8 @@ void amd_iommu_dev_flush_pasid_pages(struct iommu_dev_data *dev_data,
 void amd_iommu_dev_flush_pasid_all(struct iommu_dev_data *dev_data,
 				   ioasid_t pasid)
 {
-	amd_iommu_dev_flush_pasid_pages(dev_data, 0,
-					CMD_INV_IOMMU_ALL_PAGES_ADDRESS, pasid);
+	amd_iommu_dev_flush_pasid_pages(dev_data, pasid, 0,
+					CMD_INV_IOMMU_ALL_PAGES_ADDRESS);
 }
 
 void amd_iommu_domain_flush_complete(struct protection_domain *domain)

