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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-03-24 18:17:24 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-03-24 20:10:27 +0300 |
| commit | 6f9b850bec05ba8b08c504112808973259e41140 (patch) | |
| tree | fb13e7b1add735f39508c2b2fabad37c44086222 /drivers/gpu/drm/i915/intel_ringbuffer.c | |
| parent | e02d9d76bf4de91d6eddf73345c5e8a9ae5a5f9f (diff) | |
| download | linux-6f9b850bec05ba8b08c504112808973259e41140.tar.xz | |
drm/i915: Fix semaphore emission for BDW+ RCS ringbuffer emission
The required number of dwords for semaphore emission on BDW RCS is 8,
not 6 - leading to ring buffer corruption and immediate GPU hangs when
using ringbuffer submission.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170324151724.32640-2-chris@chris-wilson.co.uk
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_ringbuffer.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_ringbuffer.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 62756eb2bd4a..4729ac7ac122 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -2117,7 +2117,7 @@ int intel_init_render_ring_buffer(struct intel_engine_cs *engine) num_rings = hweight32(INTEL_INFO(dev_priv)->ring_mask) - 1; - engine->emit_breadcrumb_sz += num_rings * 6; + engine->emit_breadcrumb_sz += num_rings * 8; } } else if (INTEL_GEN(dev_priv) >= 6) { engine->init_context = intel_rcs_ctx_init; |