Re: [PATCH] dma-buf: fence debugging

Gustavo Padovan
2017-03-31T16:12:50Z

Hi Russell,

2017-03-31 Russell King <rmk+kernel@arm.linux.org.uk>:

> Add debugfs output to report shared and exclusive fences on a dma_buf
> object. This produces output such as:
>
> Dma-buf Objects:
> size flags mode count exp_name
> 08294400 00000000 00000005 00000005 drm
> Exclusive fence: etnaviv 134000.gpu signalled
> Attached Devices:
> gpu-subsystem
> Total 1 devices attached
>
>
> Total 1 objects, 8294400 bytes
>
>
> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
> ---
> drivers/dma-buf/dma-buf.c | 34 +++++++++++++++++++++++++++++++++-
> 1 file changed, 33 insertions(+), 1 deletions(-)

Applied to to drm-misc-next.

>
> diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
> index 0007b792827b..f72aaacbe023 100644
> --- a/drivers/dma-buf/dma-buf.c
> +++ b/drivers/dma-buf/dma-buf.c
> @@ -1059,7 +1059,11 @@ static int dma_buf_debug_show(struct seq_file *s, void *unused)
> int ret;
> struct dma_buf *buf_obj;
> struct dma_buf_attachment *attach_obj;
> - int count = 0, attach_count;
> + struct reservation_object *robj;
> + struct reservation_object_list *fobj;
> + struct dma_fence *fence;
> + unsigned seq;

Our maintainer tools warned about this line, so I made it "unsigned
int"

Gustavo