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authorChristoph Hellwig <hch@lst.de>2021-04-01 18:52:43 +0300
committerJoerg Roedel <jroedel@suse.de>2021-04-07 11:56:52 +0300
commit4eeb96f6efac10e66fd10e718d2adeece3879121 (patch)
tree424d450a4ae6fd51e9efa11711a49d10468278aa /drivers/iommu
parent376dfd2a2ff41596a6efc8ea56f8b0de172b04a6 (diff)
downloadlinux-4eeb96f6efac10e66fd10e718d2adeece3879121.tar.xz
iommu/fsl_pamu: replace DOMAIN_ATTR_FSL_PAMU_STASH with a direct call
Add a fsl_pamu_configure_l1_stash API that qman_portal can call directly instead of indirecting through the iommu attr API. 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/20210401155256.298656-8-hch@lst.de Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/fsl_pamu_domain.c16
-rw-r--r--drivers/iommu/fsl_pamu_domain.h2
2 files changed, 3 insertions, 15 deletions
diff --git a/drivers/iommu/fsl_pamu_domain.c b/drivers/iommu/fsl_pamu_domain.c
index 689035e9d409..557a152c1d2c 100644
--- a/drivers/iommu/fsl_pamu_domain.c
+++ b/drivers/iommu/fsl_pamu_domain.c
@@ -372,27 +372,20 @@ static void fsl_pamu_detach_device(struct iommu_domain *domain,
}
/* Set the domain stash attribute */
-static int configure_domain_stash(struct fsl_dma_domain *dma_domain, void *data)
+int fsl_pamu_configure_l1_stash(struct iommu_domain *domain, u32 cpu)
{
- struct pamu_stash_attribute *stash_attr = data;
+ struct fsl_dma_domain *dma_domain = to_fsl_dma_domain(domain);
unsigned long flags;
int ret;
spin_lock_irqsave(&dma_domain->domain_lock, flags);
-
- memcpy(&dma_domain->dma_stash, stash_attr,
- sizeof(struct pamu_stash_attribute));
-
- dma_domain->stash_id = get_stash_id(stash_attr->cache,
- stash_attr->cpu);
+ dma_domain->stash_id = get_stash_id(PAMU_ATTR_CACHE_L1, cpu);
if (dma_domain->stash_id == ~(u32)0) {
pr_debug("Invalid stash attributes\n");
spin_unlock_irqrestore(&dma_domain->domain_lock, flags);
return -EINVAL;
}
-
ret = update_domain_stash(dma_domain, dma_domain->stash_id);
-
spin_unlock_irqrestore(&dma_domain->domain_lock, flags);
return ret;
@@ -426,9 +419,6 @@ static int fsl_pamu_set_domain_attr(struct iommu_domain *domain,
int ret = 0;
switch (attr_type) {
- case DOMAIN_ATTR_FSL_PAMU_STASH:
- ret = configure_domain_stash(dma_domain, data);
- break;
case DOMAIN_ATTR_FSL_PAMU_ENABLE:
ret = configure_domain_dma_state(dma_domain, *(int *)data);
break;
diff --git a/drivers/iommu/fsl_pamu_domain.h b/drivers/iommu/fsl_pamu_domain.h
index 13ee06e0ef01..cd488004acd1 100644
--- a/drivers/iommu/fsl_pamu_domain.h
+++ b/drivers/iommu/fsl_pamu_domain.h
@@ -22,9 +22,7 @@ struct fsl_dma_domain {
*
*/
int enabled;
- /* stash_id obtained from the stash attribute details */
u32 stash_id;
- struct pamu_stash_attribute dma_stash;
u32 snoop_id;
struct iommu_domain iommu_domain;
spinlock_t domain_lock;