| Message ID | 20190912131800.12420-1-chris@chris-wilson.co.uk (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/i915/tgl: Disable preemption while being debugged | expand |
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c index b3cc8560696b..2ca34a5cf7d3 100644 --- a/drivers/gpu/drm/i915/i915_pci.c +++ b/drivers/gpu/drm/i915/i915_pci.c @@ -798,6 +798,7 @@ static const struct intel_device_info intel_tigerlake_12_info = { .engine_mask = BIT(RCS0) | BIT(BCS0) | BIT(VECS0) | BIT(VCS0) | BIT(VCS2), .has_rc6 = false, /* XXX disabled for debugging */ + .has_logical_ring_preemption = false, /* XXX disabled for debugging */ }; #undef GEN
We see failures where the context continues executing past a preemption event, eventually leading to situations where a request has executed before we have event submitted it to HW! It seems like tgl is ignoring our RING_TAIL updates, but more likely is that there is a missing update required for our semaphore waits around preemption. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> --- drivers/gpu/drm/i915/i915_pci.c | 1 + 1 file changed, 1 insertion(+)