Add concurrency test 1013
Adds ta_concurrent and test case 1013 to test concurrent execution.
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Tested-by: Jerome Forissier <jerome.forissier@linaro.org> (HiKey)
Tested-by: Jens Wiklander <jens.wiklander@linaro.org> (qemu, FVP)
diff --git a/ta/concurrent/atomic_a32.S b/ta/concurrent/atomic_a32.S
new file mode 100644
index 0000000..f109adf
--- /dev/null
+++ b/ta/concurrent/atomic_a32.S
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2015, Linaro Limited
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* uint32_t atomic_inc(uint32_t *v); */
+.global atomic_inc
+.func atomic_inc
+atomic_inc:
+ ldrex r1, [r0]
+ add r1, r1, #1
+ strex r2, r1, [r0]
+ cmp r2, #0
+ bne atomic_inc
+ mov r0, r1
+ bx lr
+.endfunc
+
+/* uint32_t atomic_dec(uint32_t *v); */
+.global atomic_dec
+.func atomic_dec
+atomic_dec:
+ ldrex r1, [r0]
+ sub r1, r1, #1
+ strex r2, r1, [r0]
+ cmp r2, #0
+ bne atomic_dec
+ mov r0, r1
+ bx lr
+.endfunc