1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index 811fc1b5b4b9..c1698978a8f1 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -3561,6 +3561,8 @@ bool cik_semaphore_ring_emit(struct radeon_device *rdev,
                              struct radeon_semaphore *semaphore,
                              bool emit_wait)
 {
+/* TODO: figure out why semaphore cause lockups */
+#if 0
         uint64_t addr = semaphore->gpu_addr;
         unsigned sel = emit_wait ? PACKET3_SEM_SEL_WAIT : PACKET3_SEM_SEL_SIGNAL;
 
@@ -3569,6 +3571,9 @@ bool cik_semaphore_ring_emit(struct radeon_device *rdev,
         radeon_ring_write(ring, (upper_32_bits(addr) & 0xffff) | sel);
 
         return true;
+#else
+        return false;
+#endif
 }
 
 /**