arm64: introduce data cache ops by set/way to the level specified

This patchs introduces level specific data cache maintenance operations
to cache_helpers.S. It's derived form ARM trusted firmware repository.
Please reference here.

https://github.com/ARM-software/arm-trusted-firmware/blob/master/
lib/aarch64/cache_helpers.S

BRANCH=none
BUG=none
TEST=boot on smaug/foster

Change-Id: Ib58a6d6f95eb51ce5d80749ff51d9d389b0d1343
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: b3d1a16bd0089740f1f2257146c771783beece82
Original-Change-Id: Ifcd1dbcd868331107d0d47af73545a3a159fdff6
Original-Signed-off-by: Joseph Lo <josephl@nvidia.com>
Original-Reviewed-on: https://chromium-review.googlesource.com/265826
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/9979
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>

2 files changed, 51 insertions, 1 deletions

diff --git a/src/arch/arm64/include/arch/cache_helpers.h b/src/arch/arm64/include/arch/cache_helpers.h
new file mode 100644
index 0000000000..2919d99492
--- /dev/null
+++ b/src/arch/arm64/include/arch/cache_helpers.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015, NVIDIA CORPORATION. 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.
+ */
+
+#ifndef __CACHE_HELPERS_H
+
+/* CLIDR definitions */
+#define LOUIS_SHIFT		21
+#define LOC_SHIFT		24
+#define CLIDR_FIELD_WIDTH	3
+
+/* CSSELR definitions */
+#define LEVEL_SHIFT		1
+
+/* D$ set/way op type defines */
+#define DCISW			0x0
+#define DCCISW			0x1
+#define DCCSW			0x2
+
+#endif /* __CACHE_HELPERS_H */
diff --git a/src/arch/arm64/include/armv8/arch/cache.h b/src/arch/arm64/include/armv8/arch/cache.h
index 27fe8e0595..5e2a4a186b 100644
--- a/src/arch/arm64/include/armv8/arch/cache.h
+++ b/src/arch/arm64/include/armv8/arch/cache.h
@@ -69,7 +69,10 @@ void dcache_clean_invalidate_by_mva(void const *addr, size_t len);
 void dcache_invalidate_by_mva(void const *addr, size_t len);
 
 /* dcache invalidate all */
-void flush_dcache_all(void);
+void flush_dcache_all(int op_type);
+
+/* flush the dcache up to the Level of Unification Inner Shareable */
+void flush_dcache_louis(int op_type);
 
 /* returns number of bytes per cache line */
 unsigned int dcache_line_bytes(void);