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path: root/drivers/gpu/drm/exynos/exynos_drm_g2d.c
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Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_g2d.c')
-rw-r--r--drivers/gpu/drm/exynos/exynos_drm_g2d.c89
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(&current->mm->mmap_sem);
- vma = find_vma(current->mm, userptr);
- if (!vma) {
- up_read(&current->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(&current->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(&current->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(&current->mm->mmap_sem);
- DRM_ERROR("failed to get user pages from userptr.\n");
- goto err_put_vma;
+ goto err_put_framevec;
}
- up_read(&current->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);