diff options
| author | Robert Bragg <robert@sixbynine.org> | 2016-11-07 19:49:53 +0000 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2016-11-22 14:38:51 +0100 |
| commit | 442b8c06fc7230772a663a00feeb5ebc61652d6d (patch) | |
| tree | 5f2175c591be44bee585888bf881c83ab50d7fce /drivers/gpu/drm/i915/i915_oa_hsw.h | |
| parent | d79651522e89c4ffa8992b48dfe449f0c583f809 (diff) | |
drm/i915: advertise available metrics via sysfs
Each metric set is given a sysfs entry like:
/sys/class/drm/card0/metrics/<guid>/id
This allows userspace to enumerate the specific sets that are available
for the current system. The 'id' file contains an unsigned integer that
can be used to open the associated metric set via
DRM_IOCTL_I915_PERF_OPEN. The <guid> is a globally unique ID for a
specific OA unit register configuration that can be reliably used by
userspace as a key to lookup corresponding counter meta data and
normalization equations.
The guid registry is currently maintained as part of gputop along with
the XML metric set descriptions and code generation scripts, ref:
https://github.com/rib/gputop
> gputop-data/guids.xml
> scripts/update-guids.py
> gputop-data/oa-*.xml
> scripts/i915-perf-kernelgen.py
$ make -C gputop-data -f Makefile.xml SYSFS=1 WHITELIST=RenderBasic
Signed-off-by: Robert Bragg <robert@sixbynine.org>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Sourab Gupta <sourab.gupta@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161107194957.3385-8-robert@sixbynine.org
Diffstat (limited to 'drivers/gpu/drm/i915/i915_oa_hsw.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_oa_hsw.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_oa_hsw.h b/drivers/gpu/drm/i915/i915_oa_hsw.h index b618a1f0aa94..429a229b5158 100644 --- a/drivers/gpu/drm/i915/i915_oa_hsw.h +++ b/drivers/gpu/drm/i915/i915_oa_hsw.h @@ -31,4 +31,8 @@ extern int i915_oa_n_builtin_metric_sets_hsw; extern int i915_oa_select_metric_set_hsw(struct drm_i915_private *dev_priv); +extern int i915_perf_register_sysfs_hsw(struct drm_i915_private *dev_priv); + +extern void i915_perf_unregister_sysfs_hsw(struct drm_i915_private *dev_priv); + #endif |