Hi Emil,
19. 5. 27. 오후 5:17에 Emil Velikov 이(가) 쓴 글:
> From: Emil Velikov <emil.velikov@xxxxxxxxxxxxx>
>
> The authentication can be circumvented, by design, by using the render
> node.
>
>>From the driver POV there is no distinction between primary and render
> nodes, thus we can drop the token.
>
> Cc: Inki Dae <inki.dae@xxxxxxxxxxx>
> Cc: Joonyoung Shim <jy0922.shim@xxxxxxxxxxx>
> Cc: Seung-Woo Kim <sw0312.kim@xxxxxxxxxxx>
> Cc: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
> Cc: Tobias Jakobi <tjakobi@xxxxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Emil Velikov <emil.velikov@xxxxxxxxxxxxx>
> ---
> Gents, I've looked around for userspace and found only libdrm - the
> exynos library + simple apps and the X driver. All of which are safe
> with this patch.
>
> Please have a look through other some open-source userspace that you
> have around.
Acked-by: Inki Dae <inki.dae@xxxxxxxxxxx>
Thanks,
Inki Dae
>
> Tobias, you mentioned userspace projects (mpv, libretro, other) where
> you've added exynos backend. Can you please check they work fine with
> this patch?
>
> Thanks
> Emil
> ---
> drivers/gpu/drm/exynos/exynos_drm_drv.c | 18 +++++++++---------
> 1 file changed, 9 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
> index e1ef9dc9ebf3..b461d89accff 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
> @@ -81,29 +81,29 @@ static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
>
> static const struct drm_ioctl_desc exynos_ioctls[] = {
> DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
> - DRM_AUTH | DRM_RENDER_ALLOW),
> + DRM_RENDER_ALLOW),
> DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP, exynos_drm_gem_map_ioctl,
> - DRM_AUTH | DRM_RENDER_ALLOW),
> + DRM_RENDER_ALLOW),
> DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET, exynos_drm_gem_get_ioctl,
> DRM_RENDER_ALLOW),
> DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION, vidi_connection_ioctl,
> DRM_AUTH),
> DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER, exynos_g2d_get_ver_ioctl,
> - DRM_AUTH | DRM_RENDER_ALLOW),
> + DRM_RENDER_ALLOW),
> DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST, exynos_g2d_set_cmdlist_ioctl,
> - DRM_AUTH | DRM_RENDER_ALLOW),
> + DRM_RENDER_ALLOW),
> DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC, exynos_g2d_exec_ioctl,
> - DRM_AUTH | DRM_RENDER_ALLOW),
> + DRM_RENDER_ALLOW),
> DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_RESOURCES,
> exynos_drm_ipp_get_res_ioctl,
> - DRM_AUTH | DRM_RENDER_ALLOW),
> + DRM_RENDER_ALLOW),
> DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_CAPS, exynos_drm_ipp_get_caps_ioctl,
> - DRM_AUTH | DRM_RENDER_ALLOW),
> + DRM_RENDER_ALLOW),
> DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_LIMITS,
> exynos_drm_ipp_get_limits_ioctl,
> - DRM_AUTH | DRM_RENDER_ALLOW),
> + DRM_RENDER_ALLOW),
> DRM_IOCTL_DEF_DRV(EXYNOS_IPP_COMMIT, exynos_drm_ipp_commit_ioctl,
> - DRM_AUTH | DRM_RENDER_ALLOW),
> + DRM_RENDER_ALLOW),
> };
>
> static const struct file_operations exynos_drm_driver_fops = {
>
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