The 845g shares the errata with i830 whereby executing a command within 2 cachelines of the end of the ringbuffer may cause a GPU hang. Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk> Cc: stable at kernel.org --- drivers/gpu/drm/i915/intel_ringbuffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 8a6e331..2e9fa1c 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -1042,7 +1042,7 @@ int intel_init_ring_buffer(struct drm_device *dev, * of the buffer. */ ring->effective_size = ring->size; - if (IS_I830(ring->dev)) + if (IS_I830(ring->dev) || IS_845G(ring->dev)) ring->effective_size -= 128; ring->obj = obj; -- 1.7.9.5
