diff options
Diffstat (limited to 'drivers/gpu/drm/lima/lima_object.c')
| -rw-r--r-- | drivers/gpu/drm/lima/lima_object.c | 119 | 
1 files changed, 0 insertions, 119 deletions
diff --git a/drivers/gpu/drm/lima/lima_object.c b/drivers/gpu/drm/lima/lima_object.c deleted file mode 100644 index 87123b1d083c..000000000000 --- a/drivers/gpu/drm/lima/lima_object.c +++ /dev/null @@ -1,119 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 OR MIT -/* Copyright 2018-2019 Qiang Yu <[email protected]> */ - -#include <drm/drm_prime.h> -#include <linux/pagemap.h> -#include <linux/dma-mapping.h> - -#include "lima_object.h" - -void lima_bo_destroy(struct lima_bo *bo) -{ -	if (bo->sgt) { -		kfree(bo->pages); -		drm_prime_gem_destroy(&bo->gem, bo->sgt); -	} else { -		if (bo->pages_dma_addr) { -			int i, npages = bo->gem.size >> PAGE_SHIFT; - -			for (i = 0; i < npages; i++) { -				if (bo->pages_dma_addr[i]) -					dma_unmap_page(bo->gem.dev->dev, -						       bo->pages_dma_addr[i], -						       PAGE_SIZE, DMA_BIDIRECTIONAL); -			} -		} - -		if (bo->pages) -			drm_gem_put_pages(&bo->gem, bo->pages, true, true); -	} - -	kfree(bo->pages_dma_addr); -	drm_gem_object_release(&bo->gem); -	kfree(bo); -} - -static struct lima_bo *lima_bo_create_struct(struct lima_device *dev, u32 size, u32 flags) -{ -	struct lima_bo *bo; -	int err; - -	size = PAGE_ALIGN(size); - -	bo = kzalloc(sizeof(*bo), GFP_KERNEL); -	if (!bo) -		return ERR_PTR(-ENOMEM); - -	mutex_init(&bo->lock); -	INIT_LIST_HEAD(&bo->va); - -	err = drm_gem_object_init(dev->ddev, &bo->gem, size); -	if (err) { -		kfree(bo); -		return ERR_PTR(err); -	} - -	return bo; -} - -struct lima_bo *lima_bo_create(struct lima_device *dev, u32 size, -			       u32 flags, struct sg_table *sgt) -{ -	int i, err; -	size_t npages; -	struct lima_bo *bo, *ret; - -	bo = lima_bo_create_struct(dev, size, flags); -	if (IS_ERR(bo)) -		return bo; - -	npages = bo->gem.size >> PAGE_SHIFT; - -	bo->pages_dma_addr = kcalloc(npages, sizeof(dma_addr_t), GFP_KERNEL); -	if (!bo->pages_dma_addr) { -		ret = ERR_PTR(-ENOMEM); -		goto err_out; -	} - -	if (sgt) { -		bo->sgt = sgt; - -		bo->pages = kcalloc(npages, sizeof(*bo->pages), GFP_KERNEL); -		if (!bo->pages) { -			ret = ERR_PTR(-ENOMEM); -			goto err_out; -		} - -		err = drm_prime_sg_to_page_addr_arrays( -			sgt, bo->pages, bo->pages_dma_addr, npages); -		if (err) { -			ret = ERR_PTR(err); -			goto err_out; -		} -	} else { -		mapping_set_gfp_mask(bo->gem.filp->f_mapping, GFP_DMA32); -		bo->pages = drm_gem_get_pages(&bo->gem); -		if (IS_ERR(bo->pages)) { -			ret = ERR_CAST(bo->pages); -			bo->pages = NULL; -			goto err_out; -		} - -		for (i = 0; i < npages; i++) { -			dma_addr_t addr = dma_map_page(dev->dev, bo->pages[i], 0, -						       PAGE_SIZE, DMA_BIDIRECTIONAL); -			if (dma_mapping_error(dev->dev, addr)) { -				ret = ERR_PTR(-EFAULT); -				goto err_out; -			} -			bo->pages_dma_addr[i] = addr; -		} - -	} - -	return bo; - -err_out: -	lima_bo_destroy(bo); -	return ret; -}  |