diff options
Diffstat (limited to 'drivers/gpu/ion/ion_cma_heap.c')
| -rw-r--r-- | drivers/gpu/ion/ion_cma_heap.c | 35 |
1 files changed, 3 insertions, 32 deletions
diff --git a/drivers/gpu/ion/ion_cma_heap.c b/drivers/gpu/ion/ion_cma_heap.c index a3e0b5475bc..1eaa8c11e04 100644 --- a/drivers/gpu/ion/ion_cma_heap.c +++ b/drivers/gpu/ion/ion_cma_heap.c @@ -59,29 +59,6 @@ int ion_cma_get_sgtable(struct device *dev, struct sg_table *sgt, return 0; } -/* - * Create scatter-list for each page of the already allocated DMA buffer. - */ -int ion_cma_get_sgtable_per_page(struct device *dev, struct sg_table *sgt, - void *cpu_addr, dma_addr_t handle, size_t size) -{ - struct page *page = virt_to_page(cpu_addr); - int ret, i; - struct scatterlist *sg; - - ret = sg_alloc_table(sgt, PAGE_ALIGN(size) / PAGE_SIZE, GFP_KERNEL); - if (unlikely(ret)) - return ret; - - sg = sgt->sgl; - for (i = 0; i < (PAGE_ALIGN(size) / PAGE_SIZE); i++) { - page = virt_to_page(cpu_addr + (i * PAGE_SIZE)); - sg_set_page(sg, page, PAGE_SIZE, 0); - sg = sg_next(sg); - } - return 0; -} - /* ION CMA heap operations functions */ static int ion_cma_allocate(struct ion_heap *heap, struct ion_buffer *buffer, unsigned long len, unsigned long align, @@ -112,15 +89,9 @@ static int ion_cma_allocate(struct ion_heap *heap, struct ion_buffer *buffer, goto free_mem; } - if (ion_buffer_fault_user_mappings(buffer)) { - if (ion_cma_get_sgtable_per_page - (dev, info->table, info->cpu_addr, info->handle, len)) - goto free_table; - } else { - if (ion_cma_get_sgtable - (dev, info->table, info->cpu_addr, info->handle, len)) - goto free_table; - } + if (ion_cma_get_sgtable + (dev, info->table, info->cpu_addr, info->handle, len)) + goto free_table; /* keep this for memory release */ buffer->priv_virt = info; dev_dbg(dev, "Allocate buffer %p\n", buffer); |