drm/radeon: disable CIK CP semaphores for now

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index 811fc1b5b4b983a2bb59b8c9bfea064d08b34fb0..c1698978a8f1a109201cfa395cebdb04902e8a32 100644 (file)
--- 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
 }
 
 /**