ARMv8 Trusted Firmware release v0.2
diff --git a/include/asm_macros.S b/include/asm_macros.S
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+/*
+ * Copyright (c) 2013, ARM 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:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 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.
+ *
+ * Neither the name of ARM nor the names of its contributors may be used
+ * to endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * 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.
+ */
+
+ .macro func_prologue
+ stp x29, x30, [sp, #-0x10]!
+ mov x29,sp
+ .endm
+
+ .macro func_epilogue
+ ldp x29, x30, [sp], #0x10
+ .endm
+
+
+ .macro dcache_line_size reg, tmp
+ mrs \tmp, ctr_el0
+ ubfx \tmp, \tmp, #16, #4
+ mov \reg, #4
+ lsl \reg, \reg, \tmp
+ .endm
+
+
+ .macro icache_line_size reg, tmp
+ mrs \tmp, ctr_el0
+ and \tmp, \tmp, #0xf
+ mov \reg, #4
+ lsl \reg, \reg, \tmp
+ .endm
+
+
+ .macro exception_entry func
+ stp x29, x30, [sp, #-0x10]!
+ bl \func
+ .endm
+
+
+ .macro exception_exit func
+ bl \func
+ ldp x29, x30, [sp], #0x10
+ .endm
+
+
+ .macro smc_check label
+ bl read_esr
+ ubfx x0, x0, #ESR_EC_SHIFT, #ESR_EC_LENGTH
+ cmp x0, #EC_AARCH64_SMC
+ b.ne $label
+ .endm
+
+
+ .macro setup_dcsw_op_args start_level, end_level, clidr, shift, fw, ls
+ mrs \clidr, clidr_el1
+ mov \start_level, xzr
+ ubfx \end_level, \clidr, \shift, \fw
+ lsl \end_level, \end_level, \ls
+ .endm