diff options
Diffstat (limited to 'drivers/gpu/drm/tegra/gem.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/gem.c | 34 |
1 files changed, 2 insertions, 32 deletions
diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c index 8777b7f75791..1ccde09d01c8 100644 --- a/drivers/gpu/drm/tegra/gem.c +++ b/drivers/gpu/drm/tegra/gem.c @@ -92,36 +92,6 @@ static const struct host1x_bo_ops tegra_bo_ops = { .kunmap = tegra_bo_kunmap, }; -/* - * A generic iommu_map_sg() function is being reviewed and will hopefully be - * merged soon. At that point this function can be dropped in favour of the - * one provided by the IOMMU API. - */ -static ssize_t __iommu_map_sg(struct iommu_domain *domain, unsigned long iova, - struct scatterlist *sg, unsigned int nents, - int prot) -{ - struct scatterlist *s; - size_t offset = 0; - unsigned int i; - int err; - - for_each_sg(sg, s, nents, i) { - phys_addr_t phys = page_to_phys(sg_page(s)); - size_t length = s->offset + s->length; - - err = iommu_map(domain, iova + offset, phys, length, prot); - if (err < 0) { - iommu_unmap(domain, iova, offset); - return err; - } - - offset += length; - } - - return offset; -} - static int tegra_bo_iommu_map(struct tegra_drm *tegra, struct tegra_bo *bo) { int prot = IOMMU_READ | IOMMU_WRITE; @@ -144,8 +114,8 @@ static int tegra_bo_iommu_map(struct tegra_drm *tegra, struct tegra_bo *bo) bo->paddr = bo->mm->start; - err = __iommu_map_sg(tegra->domain, bo->paddr, bo->sgt->sgl, - bo->sgt->nents, prot); + err = iommu_map_sg(tegra->domain, bo->paddr, bo->sgt->sgl, + bo->sgt->nents, prot); if (err < 0) { dev_err(tegra->drm->dev, "failed to map buffer: %zd\n", err); goto remove; |