lkml.org 
[lkml]   [2021]   [Jul]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 15/24] iommu/amd: Prepare for multiple DMA domain types
Date
The DMA ops reset/setup can simply be unconditional, since
iommu-dma already knows only to touch DMA domains.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
---
drivers/iommu/amd/iommu.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c
index 0fd98d35d73b..02f9b4fffe90 100644
--- a/drivers/iommu/amd/iommu.c
+++ b/drivers/iommu/amd/iommu.c
@@ -1707,14 +1707,9 @@ static struct iommu_device *amd_iommu_probe_device(struct device *dev)

static void amd_iommu_probe_finalize(struct device *dev)
{
- struct iommu_domain *domain;
-
/* Domains are initialized for this device - have a look what we ended up with */
- domain = iommu_get_domain_for_dev(dev);
- if (domain->type == IOMMU_DOMAIN_DMA)
- iommu_setup_dma_ops(dev, 0, U64_MAX);
- else
- set_dma_ops(dev, NULL);
+ set_dma_ops(dev, NULL);
+ iommu_setup_dma_ops(dev, 0, U64_MAX);
}

static void amd_iommu_release_device(struct device *dev)
--
2.25.1
\
 
 \ /
  Last update: 2021-07-28 18:00    [W:0.365 / U:1.488 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site