[rtems commit] bsps/powerpc: Add cache size functions

[Sebastian Huber]

Module:    rtems
Branch:    master
Commit:    c32a128cb2753c5d22965ca0302a5c5c08704505
Changeset: http://git.rtems.org/rtems/commit/?id=c32a128cb2753c5d22965ca0302a5c5c08704505

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Mon Dec 22 11:33:13 2014 +0100

bsps/powerpc: Add cache size functions

---

 c/src/lib/libcpu/powerpc/shared/src/cache_.h | 46 ++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/c/src/lib/libcpu/powerpc/shared/src/cache_.h b/c/src/lib/libcpu/powerpc/shared/src/cache_.h
index 4d335b6..1775894 100644
--- a/c/src/lib/libcpu/powerpc/shared/src/cache_.h
+++ b/c/src/lib/libcpu/powerpc/shared/src/cache_.h
@@ -25,6 +25,52 @@
   #define CPU_INSTRUCTION_CACHE_ALIGNMENT PPC_CACHE_ALIGNMENT
 #endif
 
+#define CPU_CACHE_SUPPORT_PROVIDES_CACHE_SIZE_FUNCTIONS
+
+static inline size_t _CPU_cache_get_data_cache_size(uint32_t level)
+{
+  switch (level) {
+    case 0:
+      /* Fall through */
+#ifdef PPC_CACHE_DATA_L3_SIZE
+    case 3:
+      return PPC_CACHE_DATA_L3_SIZE;
+#endif
+#ifdef PPC_CACHE_DATA_L2_SIZE
+    case 2:
+      return PPC_CACHE_DATA_L2_SIZE;
+#endif
+#ifdef PPC_CACHE_DATA_L1_SIZE
+    case 1:
+      return PPC_CACHE_DATA_L1_SIZE;
+#endif
+    default:
+      return 0;
+  }
+}
+
+static inline size_t _CPU_cache_get_instruction_cache_size(uint32_t level)
+{
+  switch (level) {
+    case 0:
+      /* Fall through */
+#ifdef PPC_CACHE_INSTRUCTION_L3_SIZE
+    case 3:
+      return PPC_CACHE_INSTRUCTION_L3_SIZE;
+#endif
+#ifdef PPC_CACHE_INSTRUCTION_L2_SIZE
+    case 2:
+      return PPC_CACHE_INSTRUCTION_L2_SIZE;
+#endif
+#ifdef PPC_CACHE_INSTRUCTION_L1_SIZE
+    case 1:
+      return PPC_CACHE_INSTRUCTION_L1_SIZE;
+#endif
+    default:
+      return 0;
+  }
+}
+
 /*
  * CACHE MANAGER: The following functions are CPU-specific.
  * They provide the basic implementation for the rtems_* cache