In preparation for handling ring seqno wrapping, split intel_ring_begin into helper part which doesn't allocate seqno.
Signed-off-by: Mika Kuoppala <[email protected]> --- drivers/gpu/drm/i915/intel_ringbuffer.c | 37 ++++++++++++++++++------------- 1 file changed, 22 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 2305af5..9342bb2 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -1374,11 +1374,31 @@ intel_ring_alloc_seqno(struct intel_ring_buffer *ring) return i915_gem_get_seqno(ring->dev, &ring->outstanding_lazy_request); } +static int __intel_ring_begin(struct intel_ring_buffer *ring, + int bytes) +{ + int ret; + + if (unlikely(ring->tail + bytes > ring->effective_size)) { + ret = intel_wrap_ring_buffer(ring); + if (unlikely(ret)) + return ret; + } + + if (unlikely(ring->space < bytes)) { + ret = ring_wait_for_space(ring, bytes); + if (unlikely(ret)) + return ret; + } + + ring->space -= bytes; + return 0; +} + int intel_ring_begin(struct intel_ring_buffer *ring, int num_dwords) { drm_i915_private_t *dev_priv = ring->dev->dev_private; - int n = 4*num_dwords; int ret; ret = i915_gem_check_wedge(dev_priv, dev_priv->mm.interruptible); @@ -1390,20 +1410,7 @@ int intel_ring_begin(struct intel_ring_buffer *ring, if (ret) return ret; - if (unlikely(ring->tail + n > ring->effective_size)) { - ret = intel_wrap_ring_buffer(ring); - if (unlikely(ret)) - return ret; - } - - if (unlikely(ring->space < n)) { - ret = ring_wait_for_space(ring, n); - if (unlikely(ret)) - return ret; - } - - ring->space -= n; - return 0; + return __intel_ring_begin(ring, num_dwords * sizeof(uint32_t)); } void intel_ring_advance(struct intel_ring_buffer *ring) -- 1.7.9.5 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
