| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.16 042/200] drm/etnaviv: relax submit size limits | Date | Mon, 31 Jan 2022 11:55:05 +0100 |
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From: Lucas Stach <l.stach@pengutronix.de>
commit e3d26528e083e612314d4dcd713f3d5a26143ddc upstream.
While all userspace tried to limit commandstreams to 64K in size, a bug in the Mesa driver lead to command streams of up to 128K being submitted. Allow those to avoid breaking existing userspace.
Fixes: 6dfa2fab8ddd ("drm/etnaviv: limit submit sizes") Cc: stable@vger.kernel.org Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c @@ -469,8 +469,8 @@ int etnaviv_ioctl_gem_submit(struct drm_ return -EINVAL; } - if (args->stream_size > SZ_64K || args->nr_relocs > SZ_64K || - args->nr_bos > SZ_64K || args->nr_pmrs > 128) { + if (args->stream_size > SZ_128K || args->nr_relocs > SZ_128K || + args->nr_bos > SZ_128K || args->nr_pmrs > 128) { DRM_ERROR("submit arguments out of size limits\n"); return -EINVAL; }
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