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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2015-01-26 18:03:04 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-01-28 17:22:27 +0100 |
| commit | f654449a28e9cce283d6e3ef22c31fe7d865dff5 (patch) | |
| tree | 6060b590f33c76455276325bb86ec0d5b398e15d /drivers/gpu/drm/i915/i915_debugfs.c | |
| parent | 737b1506037788f1e01b2a4c5795d4180b2e2e00 (diff) | |
| download | lwn-f654449a28e9cce283d6e3ef22c31fe7d865dff5.tar.gz lwn-f654449a28e9cce283d6e3ef22c31fe7d865dff5.zip | |
drm/i915: Display current hangcheck status in debugfs
For example,
/sys/kernel/debug/dri/0/i915_hangcheck_info:
Hangcheck active, fires in 15887800ms
render ring:
seqno = -4059 [current -583]
action = 2
score = 0
ACTHD = 1ee8 [current 21f980]
max ACTHD = 0
v2: Include expiration ETA. Can anyone spot a problem?
v3: Convert for workqueued hangcheck (Mika)
v4: Print seqnos as unsigned ints (Ville)
v5: Print seqnos as hex (Chris)
Tested-By: PRC QA PRTS (Patch Regression Test System Contact: shuang.he@intel.com) (v2)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> (v2)
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index b315f0196636..214a8e56cc2b 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -1220,6 +1220,41 @@ out: return ret; } +static int i915_hangcheck_info(struct seq_file *m, void *unused) +{ + struct drm_info_node *node = m->private; + struct drm_i915_private *dev_priv = to_i915(node->minor->dev); + struct intel_engine_cs *ring; + int i; + + if (!i915.enable_hangcheck) { + seq_printf(m, "Hangcheck disabled\n"); + return 0; + } + + if (delayed_work_pending(&dev_priv->gpu_error.hangcheck_work)) { + seq_printf(m, "Hangcheck active, fires in %dms\n", + jiffies_to_msecs(dev_priv->gpu_error.hangcheck_work.timer.expires - + jiffies)); + } else + seq_printf(m, "Hangcheck inactive\n"); + + for_each_ring(ring, dev_priv, i) { + seq_printf(m, "%s:\n", ring->name); + seq_printf(m, "\tseqno = %x [current %x]\n", + ring->hangcheck.seqno, ring->get_seqno(ring, false)); + seq_printf(m, "\taction = %d\n", ring->hangcheck.action); + seq_printf(m, "\tscore = %d\n", ring->hangcheck.score); + seq_printf(m, "\tACTHD = 0x%08llx [current 0x%08llx]\n", + (long long)ring->hangcheck.acthd, + (long long)intel_ring_get_active_head(ring)); + seq_printf(m, "\tmax ACTHD = 0x%08llx\n", + (long long)ring->hangcheck.max_acthd); + } + + return 0; +} + static int ironlake_drpc_info(struct seq_file *m) { struct drm_info_node *node = m->private; @@ -4402,6 +4437,7 @@ static const struct drm_info_list i915_debugfs_list[] = { {"i915_gem_hws_vebox", i915_hws_info, 0, (void *)VECS}, {"i915_gem_batch_pool", i915_gem_batch_pool_info, 0}, {"i915_frequency_info", i915_frequency_info, 0}, + {"i915_hangcheck_info", i915_hangcheck_info, 0}, {"i915_drpc_info", i915_drpc_info, 0}, {"i915_emon_status", i915_emon_status, 0}, {"i915_ring_freq_table", i915_ring_freq_table, 0}, |