diff options
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_g2d.c')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_g2d.c | 89 |
1 files changed, 29 insertions, 60 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c index 535b4ad6c4b1..3734c34aed16 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c +++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c @@ -194,10 +194,8 @@ struct g2d_cmdlist_userptr { dma_addr_t dma_addr; unsigned long userptr; unsigned long size; - struct page **pages; - unsigned int npages; + struct frame_vector *vec; struct sg_table *sgt; - struct vm_area_struct *vma; atomic_t refcount; bool in_pool; bool out_of_list; @@ -367,6 +365,7 @@ static void g2d_userptr_put_dma_addr(struct drm_device *drm_dev, { struct g2d_cmdlist_userptr *g2d_userptr = (struct g2d_cmdlist_userptr *)obj; + struct page **pages; if (!obj) return; @@ -386,19 +385,21 @@ out: exynos_gem_unmap_sgt_from_dma(drm_dev, g2d_userptr->sgt, DMA_BIDIRECTIONAL); - exynos_gem_put_pages_to_userptr(g2d_userptr->pages, - g2d_userptr->npages, - g2d_userptr->vma); + pages = frame_vector_pages(g2d_userptr->vec); + if (!IS_ERR(pages)) { + int i; - exynos_gem_put_vma(g2d_userptr->vma); + for (i = 0; i < frame_vector_count(g2d_userptr->vec); i++) + set_page_dirty_lock(pages[i]); + } + put_vaddr_frames(g2d_userptr->vec); + frame_vector_destroy(g2d_userptr->vec); if (!g2d_userptr->out_of_list) list_del_init(&g2d_userptr->list); sg_free_table(g2d_userptr->sgt); kfree(g2d_userptr->sgt); - - drm_free_large(g2d_userptr->pages); kfree(g2d_userptr); } @@ -412,9 +413,7 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev, struct exynos_drm_g2d_private *g2d_priv = file_priv->g2d_priv; struct g2d_cmdlist_userptr *g2d_userptr; struct g2d_data *g2d; - struct page **pages; struct sg_table *sgt; - struct vm_area_struct *vma; unsigned long start, end; unsigned int npages, offset; int ret; @@ -460,65 +459,40 @@ static dma_addr_t *g2d_userptr_get_dma_addr(struct drm_device *drm_dev, return ERR_PTR(-ENOMEM); atomic_set(&g2d_userptr->refcount, 1); + g2d_userptr->size = size; start = userptr & PAGE_MASK; offset = userptr & ~PAGE_MASK; end = PAGE_ALIGN(userptr + size); npages = (end - start) >> PAGE_SHIFT; - g2d_userptr->npages = npages; - - pages = drm_calloc_large(npages, sizeof(struct page *)); - if (!pages) { - DRM_ERROR("failed to allocate pages.\n"); + g2d_userptr->vec = frame_vector_create(npages); + if (!g2d_userptr->vec) { ret = -ENOMEM; goto err_free; } - down_read(¤t->mm->mmap_sem); - vma = find_vma(current->mm, userptr); - if (!vma) { - up_read(¤t->mm->mmap_sem); - DRM_ERROR("failed to get vm region.\n"); + ret = get_vaddr_frames(start, npages, true, true, g2d_userptr->vec); + if (ret != npages) { + DRM_ERROR("failed to get user pages from userptr.\n"); + if (ret < 0) + goto err_destroy_framevec; ret = -EFAULT; - goto err_free_pages; + goto err_put_framevec; } - - if (vma->vm_end < userptr + size) { - up_read(¤t->mm->mmap_sem); - DRM_ERROR("vma is too small.\n"); + if (frame_vector_to_pages(g2d_userptr->vec) < 0) { ret = -EFAULT; - goto err_free_pages; - } - - g2d_userptr->vma = exynos_gem_get_vma(vma); - if (!g2d_userptr->vma) { - up_read(¤t->mm->mmap_sem); - DRM_ERROR("failed to copy vma.\n"); - ret = -ENOMEM; - goto err_free_pages; - } - - g2d_userptr->size = size; - - ret = exynos_gem_get_pages_from_userptr(start & PAGE_MASK, - npages, pages, vma); - if (ret < 0) { - up_read(¤t->mm->mmap_sem); - DRM_ERROR("failed to get user pages from userptr.\n"); - goto err_put_vma; + goto err_put_framevec; } - up_read(¤t->mm->mmap_sem); - g2d_userptr->pages = pages; - sgt = kzalloc(sizeof(*sgt), GFP_KERNEL); if (!sgt) { ret = -ENOMEM; - goto err_free_userptr; + goto err_put_framevec; } - ret = sg_alloc_table_from_pages(sgt, pages, npages, offset, - size, GFP_KERNEL); + ret = sg_alloc_table_from_pages(sgt, + frame_vector_pages(g2d_userptr->vec), + npages, offset, size, GFP_KERNEL); if (ret < 0) { DRM_ERROR("failed to get sgt from pages.\n"); goto err_free_sgt; @@ -553,16 +527,11 @@ err_sg_free_table: err_free_sgt: kfree(sgt); -err_free_userptr: - exynos_gem_put_pages_to_userptr(g2d_userptr->pages, - g2d_userptr->npages, - g2d_userptr->vma); - -err_put_vma: - exynos_gem_put_vma(g2d_userptr->vma); +err_put_framevec: + put_vaddr_frames(g2d_userptr->vec); -err_free_pages: - drm_free_large(pages); +err_destroy_framevec: + frame_vector_destroy(g2d_userptr->vec); err_free: kfree(g2d_userptr); |