summaryrefslogtreecommitdiffstats
path: root/drivers
diff options
context:
space:
mode:
authorChristoph Hellwig <hch@lst.de>2021-04-01 17:52:47 +0200
committerJoerg Roedel <jroedel@suse.de>2021-04-07 10:56:52 +0200
commitfd78696ece54a83c8fc4f6ff1c959b7bcf25c410 (patch)
treef7dc1249e31e8cf3c02d610ab24c45de7afe7bf4 /drivers
parentiommu/fsl_pamu: enable the liodn when attaching a device (diff)
downloadlinux-fd78696ece54a83c8fc4f6ff1c959b7bcf25c410.tar.xz
linux-fd78696ece54a83c8fc4f6ff1c959b7bcf25c410.zip
iommu/fsl_pamu: remove the snoop_id field
The snoop_id is always set to ~(u32)0. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Will Deacon <will@kernel.org> Acked-by: Li Yang <leoyang.li@nxp.com> Link: https://lore.kernel.org/r/20210401155256.298656-12-hch@lst.de Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/iommu/fsl_pamu_domain.c5
-rw-r--r--drivers/iommu/fsl_pamu_domain.h1
2 files changed, 2 insertions, 4 deletions
diff --git a/drivers/iommu/fsl_pamu_domain.c b/drivers/iommu/fsl_pamu_domain.c
index c2e7e17570e7..e9c1e0dd68f0 100644
--- a/drivers/iommu/fsl_pamu_domain.c
+++ b/drivers/iommu/fsl_pamu_domain.c
@@ -97,12 +97,12 @@ static int pamu_set_liodn(struct fsl_dma_domain *dma_domain, struct device *dev,
goto out_unlock;
ret = pamu_config_ppaace(liodn, geom->aperture_start,
geom->aperture_end + 1, omi_index, 0,
- dma_domain->snoop_id, dma_domain->stash_id, 0);
+ ~(u32)0, dma_domain->stash_id, 0);
if (ret)
goto out_unlock;
ret = pamu_config_ppaace(liodn, geom->aperture_start,
geom->aperture_end + 1, ~(u32)0,
- 0, dma_domain->snoop_id, dma_domain->stash_id,
+ 0, ~(u32)0, dma_domain->stash_id,
PAACE_AP_PERMS_QUERY | PAACE_AP_PERMS_UPDATE);
out_unlock:
spin_unlock_irqrestore(&iommu_lock, flags);
@@ -210,7 +210,6 @@ static struct iommu_domain *fsl_pamu_domain_alloc(unsigned type)
return NULL;
dma_domain->stash_id = ~(u32)0;
- dma_domain->snoop_id = ~(u32)0;
INIT_LIST_HEAD(&dma_domain->devices);
spin_lock_init(&dma_domain->domain_lock);
diff --git a/drivers/iommu/fsl_pamu_domain.h b/drivers/iommu/fsl_pamu_domain.h
index 5f4ed253f61b..95ac1b3cab3b 100644
--- a/drivers/iommu/fsl_pamu_domain.h
+++ b/drivers/iommu/fsl_pamu_domain.h
@@ -13,7 +13,6 @@ struct fsl_dma_domain {
/* list of devices associated with the domain */
struct list_head devices;
u32 stash_id;
- u32 snoop_id;
struct iommu_domain iommu_domain;
spinlock_t domain_lock;
};