Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Erico Nunes <> | Subject | [PATCH 3/3] drm/lima: add show_fdinfo for drm usage stats | Date | Mon, 13 Mar 2023 00:30:52 +0100 |
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This exposes an accumulated active time per client via the fdinfo infrastructure per execution engine, following Documentation/gpu/drm-usage-stats.rst. In lima, the exposed execution engines are gp and pp.
Signed-off-by: Erico Nunes <nunes.erico@gmail.com> --- drivers/gpu/drm/lima/lima_drv.c | 31 ++++++++++++++++++++++++++++++- 1 file changed, 30 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/lima/lima_drv.c b/drivers/gpu/drm/lima/lima_drv.c index d23c0b77a252..c044a31493a4 100644 --- a/drivers/gpu/drm/lima/lima_drv.c +++ b/drivers/gpu/drm/lima/lima_drv.c @@ -261,7 +261,36 @@ static const struct drm_ioctl_desc lima_drm_driver_ioctls[] = { DRM_IOCTL_DEF_DRV(LIMA_CTX_FREE, lima_ioctl_ctx_free, DRM_RENDER_ALLOW), }; -DEFINE_DRM_GEM_FOPS(lima_drm_driver_fops); +static void lima_drm_driver_show_fdinfo(struct seq_file *m, struct file *filp) +{ + struct drm_file *file = filp->private_data; + struct drm_device *dev = file->minor->dev; + struct lima_device *ldev = dev->dev_private; + struct lima_drm_priv *priv = file->driver_priv; + struct lima_ctx_mgr *ctx_mgr = &priv->ctx_mgr; + u64 usage[lima_pipe_num]; + + lima_ctx_mgr_usage(ctx_mgr, usage); + + /* + * For a description of the text output format used here, see + * Documentation/gpu/drm-usage-stats.rst. + */ + seq_printf(m, "drm-driver:\t%s\n", dev->driver->name); + seq_printf(m, "drm-client-id:\t%u\n", priv->id); + for (int i = 0; i < lima_pipe_num; i++) { + struct lima_sched_pipe *pipe = &ldev->pipe[i]; + struct drm_gpu_scheduler *sched = &pipe->base; + + seq_printf(m, "drm-engine-%s:\t%llu ns\n", sched->name, usage[i]); + } +} + +static const struct file_operations lima_drm_driver_fops = { + .owner = THIS_MODULE, + DRM_GEM_FOPS, + .show_fdinfo = lima_drm_driver_show_fdinfo, +}; /* * Changelog: -- 2.39.2
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