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Code Issues Releases Wiki Activity

iommu: Remove iommu_map_atomic()

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There is only one call site and it can now just pass the GFP_ATOMIC to the
normal iommu_map().

Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/2-v3-76b587fe28df+6e3-iommu_map_gfp_jgg@nvidia.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Jason Gunthorpe 2023-01-23 16:35:55 -04:00 committed by Joerg Roedel
parent 1369459b2e
commit 4dc6376af5
3 changed files with 1 additions and 17 deletions
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2
drivers/iommu/dma-iommu.c
View file

@ -713,7 +713,7 @@ static dma_addr_t __iommu_dma_map(struct device *dev, phys_addr_t phys,
if (!iova)
return DMA_MAPPING_ERROR;
if (iommu_map_atomic(domain, iova, phys - iova_off, size, prot)) {
if (iommu_map(domain, iova, phys - iova_off, size, prot, GFP_ATOMIC)) {
iommu_dma_free_iova(cookie, iova, size, NULL);
return DMA_MAPPING_ERROR;
}

7
drivers/iommu/iommu.c
View file

@ -2381,13 +2381,6 @@ int iommu_map(struct iommu_domain *domain, unsigned long iova,
}
EXPORT_SYMBOL_GPL(iommu_map);
int iommu_map_atomic(struct iommu_domain *domain, unsigned long iova,
phys_addr_t paddr, size_t size, int prot)
{
return iommu_map(domain, iova, paddr, size, prot, GFP_ATOMIC);
}
EXPORT_SYMBOL_GPL(iommu_map_atomic);
static size_t __iommu_unmap_pages(struct iommu_domain *domain,
unsigned long iova, size_t size,
struct iommu_iotlb_gather *iotlb_gather)

9
include/linux/iommu.h
View file

@ -468,8 +468,6 @@ extern struct iommu_domain *iommu_get_domain_for_dev(struct device *dev);
extern struct iommu_domain *iommu_get_dma_domain(struct device *dev);
extern int iommu_map(struct iommu_domain *domain, unsigned long iova,
phys_addr_t paddr, size_t size, int prot, gfp_t gfp);
extern int iommu_map_atomic(struct iommu_domain *domain, unsigned long iova,
phys_addr_t paddr, size_t size, int prot);
extern size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova,
size_t size);
extern size_t iommu_unmap_fast(struct iommu_domain *domain,
@ -778,13 +776,6 @@ static inline int iommu_map(struct iommu_domain *domain, unsigned long iova,
return -ENODEV;
}
static inline int iommu_map_atomic(struct iommu_domain *domain,
unsigned long iova, phys_addr_t paddr,
size_t size, int prot)
{
return -ENODEV;
}
static inline size_t iommu_unmap(struct iommu_domain *domain,
unsigned long iova, size_t size)
{