From: Alex Dai <yu.dai@xxxxxxxxx> This is to avoid bad IO access caused by writing NOOP to wrap the ring buffer whilst ring is unpinned. Signed-off-by: Alex Dai <yu.dai@xxxxxxxxx> --- drivers/gpu/drm/i915/intel_lrc.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index 732fd63..3e8fcfd 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -803,12 +803,12 @@ static int intel_logical_ring_begin(struct intel_ringbuffer *ringbuf, if (ret) return ret; - ret = logical_ring_prepare(ringbuf, ctx, num_dwords * sizeof(uint32_t)); + /* Preallocate the olr before touching the ring */ + ret = i915_gem_request_alloc(ring, ctx); if (ret) return ret; - /* Preallocate the olr before touching the ring */ - ret = i915_gem_request_alloc(ring, ctx); + ret = logical_ring_prepare(ringbuf, ctx, num_dwords * sizeof(uint32_t)); if (ret) return ret; -- 1.9.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
