diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index fb59874fed99..9a9e1da496dc 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -2608,6 +2608,29 @@ static int i915_edp_psr_status(struct seq_file *m, void *data) seq_printf(m, "Last exit at: %lld\n", psr->last_exit); } + if (psr->psr2_enabled) { + u32 su_frames_val[3]; + int frame; + + /* + * Reading all 3 registers before hand to minimize crossing a + * frame boundary between register reads + */ + for (frame = 0; frame < PSR2_SU_STATUS_FRAMES; frame += 3) + su_frames_val[frame / 3] = I915_READ(PSR2_SU_STATUS(frame)); + + seq_puts(m, "Frame:\tPSR2 SU blocks:\n"); + + for (frame = 0; frame < PSR2_SU_STATUS_FRAMES; frame++) { + u32 su_blocks; + + su_blocks = su_frames_val[frame / 3] & + PSR2_SU_STATUS_MASK(frame); + su_blocks = su_blocks >> PSR2_SU_STATUS_SHIFT(frame); + seq_printf(m, "%d\t%d\n", frame, su_blocks); + } + } + unlock: mutex_unlock(&psr->lock); intel_runtime_pm_put(dev_priv, wakeref); |
