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| author |   Mika Kuoppala <mika.kuoppala@linux.intel.com> | 2016-11-18 15:10:47 +0200 |
|---|---|---|
| committer |   Mika Kuoppala <mika.kuoppala@intel.com> | 2016-11-21 14:36:40 +0200 |
| commit | b083a0870c7937e131762f8b702afa6bac8d08f4 (patch) | |
| tree | 9e84cb3132511f88b0de77ab7da4307d779016b0 /drivers/gpu/drm/i915/i915_gpu_error.c | |
| parent | drm/i915: Add bannable context parameter (diff) | |
| download | linux-dev-b083a0870c7937e131762f8b702afa6bac8d08f4.tar.xz linux-dev-b083a0870c7937e131762f8b702afa6bac8d08f4.zip | |
drm/i915: Add per client max context ban limit
If we have a bad client submitting unfavourably across different
contexts, creating new ones, the per context scoring of badness
doesn't remove the root cause, the offending client.
To counter, keep track of per client context bans. Deny access if
client is responsible for more than 3 context bans in
it's lifetime.
v2: move ban check to context create ioctl (Chris)
v3: add commentary about hangs needed to reach client ban (Chris)
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gpu_error.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gpu_error.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c index fa988a00ae68..af4f0ef4fa08 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -538,10 +538,11 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m, for (i = 0; i < ARRAY_SIZE(error->engine); i++) { if (error->engine[i].hangcheck_stalled && error->engine[i].pid != -1) { - err_printf(m, "Active process (on ring %s): %s [%d]\n", + err_printf(m, "Active process (on ring %s): %s [%d], context bans %d\n", engine_str(i), error->engine[i].comm, - error->engine[i].pid); + error->engine[i].pid, + error->engine[i].context_bans); } } err_printf(m, "Reset count: %u\n", error->reset_count); @@ -632,9 +633,10 @@ int i915_error_state_to_str(struct drm_i915_error_state_buf *m, if (obj) { err_puts(m, dev_priv->engine[i]->name); if (ee->pid != -1) - err_printf(m, " (submitted by %s [%d])", + err_printf(m, " (submitted by %s [%d], bans %d)", ee->comm, - ee->pid); + ee->pid, + ee->context_bans); err_printf(m, " --- gtt_offset = 0x%08x %08x\n", upper_32_bits(obj->gtt_offset), lower_32_bits(obj->gtt_offset)); |