[PATCH] no-seqno-barrier-gen7
Chris Wilson
chris at chris-wilson.co.uk
Sat Jun 9 10:35:17 UTC 2018
---
drivers/gpu/drm/i915/intel_ringbuffer.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 65811e2fa7da..e58f4eaec626 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -336,6 +336,13 @@ gen7_render_ring_flush(struct i915_request *rq, u32 mode)
*cs++ = flags;
*cs++ = scratch_addr;
*cs++ = 0;
+
+ *cs++ = MI_LOAD_REGISTER_MEM | MI_SRM_LRM_GLOBAL_GTT;
+ *cs++ = 0x243c;
+ *cs++ = scratch_addr;
+
+ *cs++ = MI_NOOP;
+
intel_ring_advance(rq, cs);
return 0;
@@ -2023,7 +2030,8 @@ static void intel_ring_init_irq(struct drm_i915_private *dev_priv,
if (INTEL_GEN(dev_priv) >= 6) {
engine->irq_enable = gen6_irq_enable;
engine->irq_disable = gen6_irq_disable;
- engine->irq_seqno_barrier = gen6_seqno_barrier;
+ if (INTEL_GEN(dev_priv) == 6)
+ engine->irq_seqno_barrier = gen6_seqno_barrier;
} else if (INTEL_GEN(dev_priv) >= 5) {
engine->irq_enable = gen5_irq_enable;
engine->irq_disable = gen5_irq_disable;
--
2.17.1
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