35 			    struct radeon_semaphore **semaphore)  in radeon_semaphore_create()  argument
39 	*semaphore = kmalloc(sizeof(struct radeon_semaphore), GFP_KERNEL);  in radeon_semaphore_create()
40 	if (*semaphore == NULL) {  in radeon_semaphore_create()
44 			     &(*semaphore)->sa_bo, 8, 8);  in radeon_semaphore_create()
46 		kfree(*semaphore);  in radeon_semaphore_create()
47 		*semaphore = NULL;  in radeon_semaphore_create()
50 	(*semaphore)->waiters = 0;  in radeon_semaphore_create()
51 	(*semaphore)->gpu_addr = radeon_sa_bo_gpu_addr((*semaphore)->sa_bo);  in radeon_semaphore_create()
53 	*((uint64_t *)radeon_sa_bo_cpu_addr((*semaphore)->sa_bo)) = 0;  in radeon_semaphore_create()
59 				  struct radeon_semaphore *semaphore)  in radeon_semaphore_emit_signal()  argument
63 	trace_radeon_semaphore_signale(ridx, semaphore);  in radeon_semaphore_emit_signal()
65 	if (radeon_semaphore_ring_emit(rdev, ridx, ring, semaphore, false)) {  in radeon_semaphore_emit_signal()
66 		--semaphore->waiters;  in radeon_semaphore_emit_signal()
69 		ring->last_semaphore_signal_addr = semaphore->gpu_addr;  in radeon_semaphore_emit_signal()
76 				struct radeon_semaphore *semaphore)  in radeon_semaphore_emit_wait()  argument
80 	trace_radeon_semaphore_wait(ridx, semaphore);  in radeon_semaphore_emit_wait()
82 	if (radeon_semaphore_ring_emit(rdev, ridx, ring, semaphore, true)) {  in radeon_semaphore_emit_wait()
83 		++semaphore->waiters;  in radeon_semaphore_emit_wait()
86 		ring->last_semaphore_wait_addr = semaphore->gpu_addr;  in radeon_semaphore_emit_wait()
93 			   struct radeon_semaphore **semaphore,  in radeon_semaphore_free()  argument
96 	if (semaphore == NULL || *semaphore == NULL) {  in radeon_semaphore_free()
99 	if ((*semaphore)->waiters > 0) {  in radeon_semaphore_free()
101 			" hardware lockup imminent!\n", *semaphore);  in radeon_semaphore_free()
103 	radeon_sa_bo_free(&(*semaphore)->sa_bo, fence);  in radeon_semaphore_free()
104 	kfree(*semaphore);  in radeon_semaphore_free()
105 	*semaphore = NULL;  in radeon_semaphore_free()