From: Ville Syrjälä <ville.syrj...@linux.intel.com>
The execlist code already masks everything in the ring HWSTAM, but
the ringbuffer code doesn't. Let's go ahead and do that. Pre-gen6
platforms setup HWSTAM during irq setup already since there's just
the one register, and it also contains bits for non-ring interrupts.
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/i915/intel_ringbuffer.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c
b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 5224b7abb8a3..d7a611c5ce89 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -427,6 +427,9 @@ static void intel_ring_setup_status_page(struct
intel_engine_cs *engine)
mmio = RING_HWS_PGA(engine->mmio_base);
}
+ if (INTEL_GEN(dev_priv) >= 6)
+ I915_WRITE(RING_HWSTAM(engine->mmio_base), 0xffffffff);
+
I915_WRITE(mmio, engine->status_page.ggtt_offset);
POSTING_READ(mmio);
--
2.13.0
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