diff options
Diffstat (limited to 'drivers/media/pci/intel/ipu6/ipu6-dma.c')
| -rw-r--r-- | drivers/media/pci/intel/ipu6/ipu6-dma.c | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/drivers/media/pci/intel/ipu6/ipu6-dma.c b/drivers/media/pci/intel/ipu6/ipu6-dma.c index b34022bad83b..1ca60ca79dba 100644 --- a/drivers/media/pci/intel/ipu6/ipu6-dma.c +++ b/drivers/media/pci/intel/ipu6/ipu6-dma.c @@ -457,36 +457,3 @@ void ipu6_dma_unmap_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt, ipu6_dma_unmap_sg(sys, sgt->sgl, sgt->nents, dir, attrs); } EXPORT_SYMBOL_NS_GPL(ipu6_dma_unmap_sgtable, "INTEL_IPU6"); - -/* - * Create scatter-list for the already allocated DMA buffer - */ -int ipu6_dma_get_sgtable(struct ipu6_bus_device *sys, struct sg_table *sgt, - void *cpu_addr, dma_addr_t handle, size_t size, - unsigned long attrs) -{ - struct device *dev = &sys->auxdev.dev; - struct ipu6_mmu *mmu = sys->mmu; - struct vm_info *info; - int n_pages; - int ret = 0; - - info = get_vm_info(mmu, handle); - if (!info) - return -EFAULT; - - if (!info->vaddr) - return -EFAULT; - - if (WARN_ON(!info->pages)) - return -ENOMEM; - - n_pages = PFN_UP(size); - - ret = sg_alloc_table_from_pages(sgt, info->pages, n_pages, 0, size, - GFP_KERNEL); - if (ret) - dev_warn(dev, "get sgt table failed\n"); - - return ret; -} |