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path: root/drivers/gpu/drm/lima/lima_object.c
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Diffstat (limited to 'drivers/gpu/drm/lima/lima_object.c')
-rw-r--r--drivers/gpu/drm/lima/lima_object.c119
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 <yuq825@gmail.com> */
-
-#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;
-}