diff options
| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2020-04-30 14:02:25 +0200 |
|---|---|---|
| committer | Marek Szyprowski <m.szyprowski@samsung.com> | 2020-09-10 08:18:35 +0200 |
| commit | 10740255d8beb78c6d3fd7a332f1a0e3e7dff878 (patch) | |
| tree | a942849f3923e2d1f55d9086caa3aee7fad46d5b /drivers/gpu/drm/exynos/exynos_drm_gem.c | |
| parent | 182354a526a0540c9197e03d9fce8a949ffd36ca (diff) | |
drm: exynos: use common helper for a scatterlist contiguity check
Use common helper for checking the contiguity of the imported dma-buf.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Acked-by : Inki Dae <inki.dae@samsung.com>
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_gem.c')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_gem.c | 23 |
1 files changed, 3 insertions, 20 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c index efa476858db5..1716a023bca0 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c @@ -431,27 +431,10 @@ exynos_drm_gem_prime_import_sg_table(struct drm_device *dev, { struct exynos_drm_gem *exynos_gem; - if (sgt->nents < 1) + /* check if the entries in the sg_table are contiguous */ + if (drm_prime_get_contiguous_size(sgt) < attach->dmabuf->size) { + DRM_ERROR("buffer chunks must be mapped contiguously"); return ERR_PTR(-EINVAL); - - /* - * Check if the provided buffer has been mapped as contiguous - * into DMA address space. - */ - if (sgt->nents > 1) { - dma_addr_t next_addr = sg_dma_address(sgt->sgl); - struct scatterlist *s; - unsigned int i; - - for_each_sg(sgt->sgl, s, sgt->nents, i) { - if (!sg_dma_len(s)) - break; - if (sg_dma_address(s) != next_addr) { - DRM_ERROR("buffer chunks must be mapped contiguously"); - return ERR_PTR(-EINVAL); - } - next_addr = sg_dma_address(s) + sg_dma_len(s); - } } exynos_gem = exynos_drm_gem_init(dev, attach->dmabuf->size); |