Upgrade to 4.4.50-rt62

[kvmfornfv.git] / kernel / drivers / gpu / drm / i915 / intel_lrc.c

diff --git a/kernel/drivers/gpu/drm/i915/intel_lrc.c b/kernel/drivers/gpu/drm/i915/intel_lrc.c
index d69547a..7058f75 100644 (file)
--- a/kernel/drivers/gpu/drm/i915/intel_lrc.c
+++ b/kernel/drivers/gpu/drm/i915/intel_lrc.c
@@ -776,11 +776,11 @@ static int logical_ring_prepare(struct drm_i915_gem_request *req, int bytes)
                if (unlikely(total_bytes > remain_usable)) {
                        /*
                         * The base request will fit but the reserved space
-                        * falls off the end. So only need to to wait for the
-                        * reserved size after flushing out the remainder.
+                        * falls off the end. So don't need an immediate wrap
+                        * and only need to effectively wait for the reserved
+                        * size space from the start of ringbuffer.
                         */
                        wait_bytes = remain_actual + ringbuf->reserved_size;
-                       need_wrap = true;
                } else if (total_bytes > ringbuf->space) {
                        /* No wrapping required, just waiting. */
                        wait_bytes = total_bytes;