[PATCH] drm/syncobj: Tune down unordered timeline DRM_ERROR

[PATCH] drm/syncobj: Tune down unordered timeline DRM_ERROR

[Daniel Vetter]

Userspace can provoke this, we generally don't allow userspace to spam
dmesg. Tune it down to debug. Unfortunately we don't have easy access
to the drm_device here (not at all without changing a few things), so
leave it as old style dmesg output for now.

References: https://patchwork.freedesktop.org/series/80146/
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: "Christian König" <christian.koenig@amd.com>
---
 drivers/gpu/drm/drm_syncobj.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c
index 3bf73971daf3..6e74e6745eca 100644
--- a/drivers/gpu/drm/drm_syncobj.c
+++ b/drivers/gpu/drm/drm_syncobj.c
@@ -297,7 +297,7 @@ void drm_syncobj_add_point(struct drm_syncobj *syncobj,
 	prev = drm_syncobj_fence_get(syncobj);
 	/* You are adding an unorder point to timeline, which could cause payload returned from query_ioctl is 0! */
 	if (prev && prev->seqno >= point)
-		DRM_ERROR("You are adding an unorder point to timeline!\n");
+		DRM_DEBUG("You are adding an unorder point to timeline!\n");
 	dma_fence_chain_init(chain, prev, fence, point);
 	rcu_assign_pointer(syncobj->fence, &chain->base);
 
-- 
2.27.0

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Re: [PATCH] drm/syncobj: Tune down unordered timeline DRM_ERROR

[Lionel Landwerlin]

On 01/08/2020 12:26, Daniel Vetter wrote:
> Userspace can provoke this, we generally don't allow userspace to spam
> dmesg. Tune it down to debug. Unfortunately we don't have easy access
> to the drm_device here (not at all without changing a few things), so
> leave it as old style dmesg output for now.
>
> References: https://patchwork.freedesktop.org/series/80146/
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Chris Wilson <chris@chris-wilson.co.uk>
> Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
> Cc: "Christian König" <christian.koenig@amd.com>
> ---
>   drivers/gpu/drm/drm_syncobj.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c
> index 3bf73971daf3..6e74e6745eca 100644
> --- a/drivers/gpu/drm/drm_syncobj.c
> +++ b/drivers/gpu/drm/drm_syncobj.c
> @@ -297,7 +297,7 @@ void drm_syncobj_add_point(struct drm_syncobj *syncobj,
>   	prev = drm_syncobj_fence_get(syncobj);
>   	/* You are adding an unorder point to timeline, which could cause payload returned from query_ioctl is 0! */
>   	if (prev && prev->seqno >= point)
> -		DRM_ERROR("You are adding an unorder point to timeline!\n");
> +		DRM_DEBUG("You are adding an unorder point to timeline!\n");
>   	dma_fence_chain_init(chain, prev, fence, point);
>   	rcu_assign_pointer(syncobj->fence, &chain->base);
>   

Thanks,

Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

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Re: [PATCH] drm/syncobj: Tune down unordered timeline DRM_ERROR

[daniel]

On Sat, Aug 01, 2020 at 05:39:50PM +0300, Lionel Landwerlin wrote:
> On 01/08/2020 12:26, Daniel Vetter wrote:
> > Userspace can provoke this, we generally don't allow userspace to spam
> > dmesg. Tune it down to debug. Unfortunately we don't have easy access
> > to the drm_device here (not at all without changing a few things), so
> > leave it as old style dmesg output for now.
> > 
> > References: https://patchwork.freedesktop.org/series/80146/
> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> > Cc: Chris Wilson <chris@chris-wilson.co.uk>
> > Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
> > Cc: "Christian König" <christian.koenig@amd.com>
> > ---
> >   drivers/gpu/drm/drm_syncobj.c | 2 +-
> >   1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c
> > index 3bf73971daf3..6e74e6745eca 100644
> > --- a/drivers/gpu/drm/drm_syncobj.c
> > +++ b/drivers/gpu/drm/drm_syncobj.c
> > @@ -297,7 +297,7 @@ void drm_syncobj_add_point(struct drm_syncobj *syncobj,
> >   	prev = drm_syncobj_fence_get(syncobj);
> >   	/* You are adding an unorder point to timeline, which could cause payload returned from query_ioctl is 0! */
> >   	if (prev && prev->seqno >= point)
> > -		DRM_ERROR("You are adding an unorder point to timeline!\n");
> > +		DRM_DEBUG("You are adding an unorder point to timeline!\n");
> >   	dma_fence_chain_init(chain, prev, fence, point);
> >   	rcu_assign_pointer(syncobj->fence, &chain->base);
> 
> Thanks,
> 
> Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>

Thanks for taking a look, applied it now.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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