| # Copyright (c) 2014-2015 Wind River Systems, Inc. |
| # |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| menu "Atomic Operations" |
| |
| config ATOMIC_OPERATIONS_BUILTIN |
| bool |
| help |
| Use the compiler builtin functions for atomic operations. This is |
| the preferred method. However, support for all arches in GCC is |
| incomplete. |
| |
| config ATOMIC_OPERATIONS_ARCH |
| bool |
| help |
| Use when there isn't support for compiler built-ins, but you have |
| written optimized assembly code under arch/ which implements these. |
| |
| config ATOMIC_OPERATIONS_C |
| bool |
| help |
| Use atomic operations routines that are implemented entirely |
| in C by locking interrupts. Selected by architectures which either |
| do not have support for atomic operations in their instruction |
| set, or haven't been implemented yet during bring-up, and also |
| the compiler does not have support for the atomic __sync_* builtins. |
| endmenu |
