On 01/11/2019 13:03, Emil Velikov wrote:
> From: Emil Velikov <emil.veli...@collabora.com>
>
> As of earlier commit we have address space separation. Yet we forgot to
> remove the respective comment and DRM_AUTH in the ioctl declaration.
>
> Cc: Tomeu Vizoso <tomeu.viz...@collabora.com>
> Cc: David Airlie <airl...@linux.ie>
> Cc: Daniel Vetter <dan...@ffwll.ch>
> Cc: Robin Murphy <robin.mur...@arm.com>
> Cc: Steven Price <steven.pr...@arm.com>
> Fixes: 7282f7645d06 ("drm/panfrost: Implement per FD address spaces")
> Signed-off-by: Emil Velikov <emil.veli...@collabora.com>
Reviewed-by: Steven Price <steven.pr...@arm.com>
I'm not sure DRM_AUTH provided us with much in the first place (because
render nodes could snoop/affect the primary node), but since we have
address space separation it's clearly not required now.
Steve
> ---
> drivers/gpu/drm/panfrost/panfrost_drv.c | 6 +-----
> 1 file changed, 1 insertion(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c
> b/drivers/gpu/drm/panfrost/panfrost_drv.c
> index bc2ddeb55f5d..c677b2c9e409 100644
> --- a/drivers/gpu/drm/panfrost/panfrost_drv.c
> +++ b/drivers/gpu/drm/panfrost/panfrost_drv.c
> @@ -451,15 +451,11 @@ panfrost_postclose(struct drm_device *dev, struct
> drm_file *file)
> kfree(panfrost_priv);
> }
>
> -/* DRM_AUTH is required on SUBMIT for now, while all clients share a single
> - * address space. Note that render nodes would be able to submit jobs that
> - * could access BOs from clients authenticated with the master node.
> - */
> static const struct drm_ioctl_desc panfrost_drm_driver_ioctls[] = {
> #define PANFROST_IOCTL(n, func, flags) \
> DRM_IOCTL_DEF_DRV(PANFROST_##n, panfrost_ioctl_##func, flags)
>
> - PANFROST_IOCTL(SUBMIT, submit, DRM_RENDER_ALLOW |
> DRM_AUTH),
> + PANFROST_IOCTL(SUBMIT, submit, DRM_RENDER_ALLOW),
> PANFROST_IOCTL(WAIT_BO, wait_bo, DRM_RENDER_ALLOW),
> PANFROST_IOCTL(CREATE_BO, create_bo, DRM_RENDER_ALLOW),
> PANFROST_IOCTL(MMAP_BO, mmap_bo, DRM_RENDER_ALLOW),
>
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