gpu: nvgpu: Remove unused function gk20a_get_phys_from_iova

Remove unused function gk20a_get_phys_from_iova. At the same time
remove the #include for iommu.h, which was only needed by this
function.

Change-Id: Ia858b0ad5fe7e423d650aa9f82e430f419f2a492
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1319070
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

2 files changed, 0 insertions, 18 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.c b/drivers/gpu/nvgpu/gk20a/mm_gk20a.c
index ef20f00d..a66bf80e 100644
--- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.c
@@ -3446,21 +3446,6 @@ void gk20a_gmmu_unmap(struct vm_gk20a *vm,
         nvgpu_mutex_release(&vm->update_gmmu_lock);
 }
 
-phys_addr_t gk20a_get_phys_from_iova(struct device *d,
-                                u64 dma_addr)
-{
-        phys_addr_t phys;
-        u64 iova;
-
-        struct dma_iommu_mapping *mapping = to_dma_iommu_mapping(d);
-        if (!mapping)
-                return dma_addr;
-
-        iova = dma_addr & PAGE_MASK;
-        phys = iommu_iova_to_phys(mapping->domain, iova);
-        return phys;
-}
-
 /* get sg_table from already allocated buffer */
 int gk20a_get_sgtable(struct device *d, struct sg_table **sgt,
                         void *cpuva, u64 iova,
diff --git a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
index 5b96726f..6c713e49 100644
--- a/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/mm_gk20a.h
@@ -507,9 +507,6 @@ void gk20a_mm_dump_vm(struct vm_gk20a *vm,
 
 int gk20a_mm_suspend(struct gk20a *g);
 
-phys_addr_t gk20a_get_phys_from_iova(struct device *d,
-                                u64 dma_addr);
-
 int gk20a_get_sgtable(struct device *d, struct sg_table **sgt,
                         void *cpuva, u64 iova,
                         size_t size);