drm/i915: Add RPS thresholds to debugfs/i915_frequency_info

Expose some more of our internal RPS bookkeeping for debugging.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 9c2b9e4..9e5a56c 100644 (file)
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1211,12 +1211,17 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
                           GEN6_CURBSYTAVG_MASK);
                seq_printf(m, "RP PREV UP: %dus\n", rpprevup &
                           GEN6_CURBSYTAVG_MASK);
+               seq_printf(m, "Up threshold: %d%%\n",
+                          dev_priv->rps.up_threshold);
+
                seq_printf(m, "RP CUR DOWN EI: %dus\n", rpdownei &
                           GEN6_CURIAVG_MASK);
                seq_printf(m, "RP CUR DOWN: %dus\n", rpcurdown &
                           GEN6_CURBSYTAVG_MASK);
                seq_printf(m, "RP PREV DOWN: %dus\n", rpprevdown &
                           GEN6_CURBSYTAVG_MASK);
+               seq_printf(m, "Down threshold: %d%%\n",
+                          dev_priv->rps.down_threshold);
 
                max_freq = (rp_state_cap & 0xff0000) >> 16;
                max_freq *= (IS_SKYLAKE(dev) ? GEN9_FREQ_SCALER : 1);
@@ -1232,12 +1237,21 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
                max_freq *= (IS_SKYLAKE(dev) ? GEN9_FREQ_SCALER : 1);
                seq_printf(m, "Max non-overclocked (RP0) frequency: %dMHz\n",
                           intel_gpu_freq(dev_priv, max_freq));
-
                seq_printf(m, "Max overclocked frequency: %dMHz\n",
                           intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
 
+               seq_printf(m, "Current freq: %d MHz\n",
+                          intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq));
+               seq_printf(m, "Actual freq: %d MHz\n", cagf);
                seq_printf(m, "Idle freq: %d MHz\n",
                           intel_gpu_freq(dev_priv, dev_priv->rps.idle_freq));
+               seq_printf(m, "Min freq: %d MHz\n",
+                          intel_gpu_freq(dev_priv, dev_priv->rps.min_freq));
+               seq_printf(m, "Max freq: %d MHz\n",
+                          intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
+               seq_printf(m,
+                          "efficient (RPe) frequency: %d MHz\n",
+                          intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq));
        } else if (IS_VALLEYVIEW(dev)) {
                u32 freq_sts;
 
@@ -1246,6 +1260,12 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
                seq_printf(m, "PUNIT_REG_GPU_FREQ_STS: 0x%08x\n", freq_sts);
                seq_printf(m, "DDR freq: %d MHz\n", dev_priv->mem_freq);
 
+               seq_printf(m, "actual GPU freq: %d MHz\n",
+                          intel_gpu_freq(dev_priv, (freq_sts >> 8) & 0xff));
+
+               seq_printf(m, "current GPU freq: %d MHz\n",
+                          intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq));
+
                seq_printf(m, "max GPU freq: %d MHz\n",
                           intel_gpu_freq(dev_priv, dev_priv->rps.max_freq));
 
@@ -1258,9 +1278,6 @@ static int i915_frequency_info(struct seq_file *m, void *unused)
                seq_printf(m,
                           "efficient (RPe) frequency: %d MHz\n",
                           intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq));
-
-               seq_printf(m, "current GPU freq: %d MHz\n",
-                          intel_gpu_freq(dev_priv, (freq_sts >> 8) & 0xff));
                mutex_unlock(&dev_priv->rps.hw_lock);
        } else {
                seq_puts(m, "no P-state info available\n");