20. 6. 19. 오후 7:36에 Marek Szyprowski 이(가) 쓴 글:
Use common helper for checking the contiguity of the imported dma-buf.
Signed-off-by: Marek Szyprowski m.szyprowski@samsung.com
Acked-by : Inki Dae inki.dae@samsung.com
Thanks, Inki Dae
drivers/gpu/drm/exynos/exynos_drm_gem.c | 23 +++-------------------- 1 file 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");
/*
* 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);