2012/7/20, InKi Dae daeinki@gmail.com:
2012/7/10, Cooper Yuan cooperyuan@gmail.com:
Set dma_buf exporter permission as ReadWrite, otherwise mmap will get errno 13: permission denied.
Signed-off-by: Cooper Yuan cooperyuan@gmail.com
drivers/gpu/drm/exynos/exynos_drm_dmabuf.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c index 613bf8a..e4eeb0b 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c @@ -29,6 +29,7 @@ #include "exynos_drm_drv.h" #include "exynos_drm_gem.h"
+#include <linux/fcntl.h> #include <linux/dma-buf.h>
static struct sg_table *exynos_pages_to_sg(struct page **pages, int nr_pages, @@ -179,7 +180,7 @@ struct dma_buf *exynos_dmabuf_prime_export(struct drm_device *drm_dev, struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj);
return dma_buf_export(exynos_gem_obj, &exynos_dmabuf_ops,
exynos_gem_obj->base.size, 0600);
exynos_gem_obj->base.size, O_RDWR);this way is not good. the permission should be set from user so use flags variable.
hm, it seems like that now drm prime has one issue. the flags has only O_CLOEXEC by drm_prime_handle_to_fd_ioctl function but I think we need some flag values from user. so could you please explain why having only O_CLOEXEC?
Thanks, Inki Dae
}
struct drm_gem_object *exynos_dmabuf_prime_import(struct drm_device
*drm_dev,
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