diff options
| author | Lionel Landwerlin <lionel.g.landwerlin@intel.com> | 2019-10-14 21:14:01 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-10-14 21:30:25 +0100 |
| commit | b8d49f28aa03e4678e450e588b10c0faf96e4118 (patch) | |
| tree | cd532622647b62670e01caf216f3fecb84304ae8 /drivers/gpu/drm/i915/i915_perf.c | |
| parent | 3c00660db18371c632adae4836ed2b2d3d78ecb6 (diff) | |
| download | lwn-b8d49f28aa03e4678e450e588b10c0faf96e4118.tar.gz lwn-b8d49f28aa03e4678e450e588b10c0faf96e4118.zip | |
drm/i915/perf: introduce a versioning of the i915-perf uapi
Reporting this version will help application figure out what level of
the support the running kernel provides.
v2: Add i915_perf_ioctl_version() (Chris)
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191014201404.22468-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_perf.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_perf.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c index 366580701ba2..220e3384af30 100644 --- a/drivers/gpu/drm/i915/i915_perf.c +++ b/drivers/gpu/drm/i915/i915_perf.c @@ -4017,6 +4017,16 @@ void i915_perf_fini(struct drm_i915_private *i915) perf->i915 = NULL; } +/** + * i915_perf_ioctl_version - Version of the i915-perf subsystem + * + * This version number is used by userspace to detect available features. + */ +int i915_perf_ioctl_version(void) +{ + return 1; +} + #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) #include "selftests/i915_perf.c" #endif |