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drm/i915/perf: check the value of PROP_SAMPLE_OA uapi parameter 

We've been a bit loose about this opening parameter. We should only
add the flag for writing OA reports when the value of this parameter
is != 0.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180326090831.22686-3-lionel.g.landwerlin@intel.com
This commit is contained in:
Lionel Landwerlin 2018-03-26 10:08:22 +01:00
parent 1de401c08f
commit b6dd47b9c8
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/i915/i915_perf.c
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@ -2746,7 +2746,8 @@ static int read_properties_unlocked(struct drm_i915_private *dev_priv,
props->ctx_handle = value;
break;
case DRM_I915_PERF_PROP_SAMPLE_OA:
props->sample_flags |= SAMPLE_OA_REPORT;
if (value)
props->sample_flags |= SAMPLE_OA_REPORT;
break;
case DRM_I915_PERF_PROP_OA_METRICS_SET:
if (value == 0) {