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iommu/fsl_pamu: remove the snoop_id field

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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>
This commit is contained in:
Christoph Hellwig 2021-04-01 17:52:47 +02:00 committed by Joerg Roedel
parent 7d61cb6ff0
commit fd78696ece
2 changed files with 2 additions and 4 deletions
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5
drivers/iommu/fsl_pamu_domain.c
View File

@ -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);

1
drivers/iommu/fsl_pamu_domain.h
View File

@ -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;
};