diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_perf.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_perf.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c index e94976976571..649c26518d26 100644 --- a/drivers/gpu/drm/i915/i915_perf.c +++ b/drivers/gpu/drm/i915/i915_perf.c @@ -625,7 +625,8 @@ static int append_oa_sample(struct i915_perf_stream *stream, } /** - * Copies all buffered OA reports into userspace read() buffer. + * gen8_append_oa_reports - Copies all buffered OA reports into + * userspace read() buffer. * @stream: An i915-perf stream opened for OA metrics * @buf: destination buffer given by userspace * @count: the number of bytes userspace wants to read @@ -909,15 +910,21 @@ static int gen8_oa_read(struct i915_perf_stream *stream, DRM_I915_PERF_RECORD_OA_REPORT_LOST); if (ret) return ret; - intel_uncore_write(uncore, oastatus_reg, - oastatus & ~GEN8_OASTATUS_REPORT_LOST); + + intel_uncore_rmw(uncore, oastatus_reg, + GEN8_OASTATUS_COUNTER_OVERFLOW | + GEN8_OASTATUS_REPORT_LOST, + IS_GEN_RANGE(uncore->i915, 8, 11) ? + (GEN8_OASTATUS_HEAD_POINTER_WRAP | + GEN8_OASTATUS_TAIL_POINTER_WRAP) : 0); } return gen8_append_oa_reports(stream, buf, count, offset); } /** - * Copies all buffered OA reports into userspace read() buffer. + * gen7_append_oa_reports - Copies all buffered OA reports into + * userspace read() buffer. * @stream: An i915-perf stream opened for OA metrics * @buf: destination buffer given by userspace * @count: the number of bytes userspace wants to read @@ -3227,7 +3234,7 @@ static long i915_perf_config_locked(struct i915_perf_stream *stream, } /** - * i915_perf_ioctl - support ioctl() usage with i915 perf stream FDs + * i915_perf_ioctl_locked - support ioctl() usage with i915 perf stream FDs * @stream: An i915 perf stream * @cmd: the ioctl request * @arg: the ioctl data |