redonkable/alistair23-linux
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drm/etnaviv: remove iova_to_phys iommu ops

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They are not used in any way, so can go away.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-By: Wladimir J. van der Laan <laanwj@gmail.com>
This commit is contained in:
Lucas Stach 2017-09-07 15:27:00 +02:00
parent 3bc3e0ecef
commit 87ceb37560
2 changed files with 0 additions and 35 deletions
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21
drivers/gpu/drm/etnaviv/etnaviv_iommu.c
View file

@ -66,18 +66,6 @@ static void pgtable_free(struct etnaviv_iommu_domain_pgtable *pgtable,
dma_free_coherent(NULL, size, pgtable->pgtable, pgtable->paddr);
}
static u32 pgtable_read(struct etnaviv_iommu_domain_pgtable *pgtable,
unsigned long iova)
{
/* calcuate index into page table */
unsigned int index = (iova - GPU_MEM_START) / SZ_4K;
phys_addr_t paddr;
paddr = pgtable->pgtable[index];
return paddr;
}
static void pgtable_write(struct etnaviv_iommu_domain_pgtable *pgtable,
unsigned long iova, phys_addr_t paddr)
{
@ -164,14 +152,6 @@ static size_t etnaviv_iommuv1_unmap(struct iommu_domain *domain,
return SZ_4K;
}
static phys_addr_t etnaviv_iommu_iova_to_phys(struct iommu_domain *domain,
dma_addr_t iova)
{
struct etnaviv_iommu_domain *etnaviv_domain = to_etnaviv_domain(domain);
return pgtable_read(&etnaviv_domain->pgtable, iova);
}
static size_t etnaviv_iommuv1_dump_size(struct iommu_domain *domain)
{
return PT_SIZE;
@ -189,7 +169,6 @@ static const struct etnaviv_iommu_ops etnaviv_iommu_ops = {
.domain_free = etnaviv_domain_free,
.map = etnaviv_iommuv1_map,
.unmap = etnaviv_iommuv1_unmap,
.iova_to_phys = etnaviv_iommu_iova_to_phys,
.pgsize_bitmap = SZ_4K,
},
.dump_size = etnaviv_iommuv1_dump_size,

14
drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c
View file

@ -97,19 +97,6 @@ static size_t etnaviv_iommuv2_unmap(struct iommu_domain *domain,
return SZ_4K;
}
static phys_addr_t etnaviv_iommuv2_iova_to_phys(struct iommu_domain *domain,
dma_addr_t iova)
{
struct etnaviv_iommuv2_domain *etnaviv_domain =
to_etnaviv_domain(domain);
int mtlb_entry, stlb_entry;
mtlb_entry = (iova & MMUv2_MTLB_MASK) >> MMUv2_MTLB_SHIFT;
stlb_entry = (iova & MMUv2_STLB_MASK) >> MMUv2_STLB_SHIFT;
return etnaviv_domain->stlb_cpu[mtlb_entry][stlb_entry] & ~(SZ_4K - 1);
}
static int etnaviv_iommuv2_init(struct etnaviv_iommuv2_domain *etnaviv_domain)
{
u32 *p;
@ -235,7 +222,6 @@ static const struct etnaviv_iommu_ops etnaviv_iommu_ops = {
.domain_free = etnaviv_iommuv2_domain_free,
.map = etnaviv_iommuv2_map,
.unmap = etnaviv_iommuv2_unmap,
.iova_to_phys = etnaviv_iommuv2_iova_to_phys,
.pgsize_bitmap = SZ_4K,
},
.dump_size = etnaviv_iommuv2_dump_size,