diff options
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_gem.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c index 862f1d9a2ecb..49f9cd232757 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c @@ -18,6 +18,7 @@ #include "exynos_drm_drv.h" #include "exynos_drm_gem.h" #include "exynos_drm_buf.h" +#include "exynos_drm_iommu.h" static unsigned int convert_to_vm_err_msg(int msg) { @@ -666,6 +667,18 @@ int exynos_drm_gem_dumb_create(struct drm_file *file_priv, exynos_gem_obj = exynos_drm_gem_create(dev, EXYNOS_BO_CONTIG | EXYNOS_BO_WC, args->size); + /* + * If physically contiguous memory allocation fails and if IOMMU is + * supported then try to get buffer from non physically contiguous + * memory area. + */ + if (IS_ERR(exynos_gem_obj) && is_drm_iommu_supported(dev)) { + dev_warn(dev->dev, "contiguous FB allocation failed, falling back to non-contiguous\n"); + exynos_gem_obj = exynos_drm_gem_create(dev, + EXYNOS_BO_NONCONTIG | EXYNOS_BO_WC, + args->size); + } + if (IS_ERR(exynos_gem_obj)) return PTR_ERR(exynos_gem_obj); |