1 files changed, 66 insertions, 0 deletions
diff --git a/src/roms/SLOF/include/ppcp7/cpu.h b/src/roms/SLOF/include/ppcp7/cpu.h
new file mode 100644
index 0000000..1b1fadd
--- /dev/null
+++ b/src/roms/SLOF/include/ppcp7/cpu.h
@@ -0,0 +1,66 @@
+/******************************************************************************
+ * Copyright (c) 2004, 2008 IBM Corporation
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ *     IBM Corporation - initial implementation
+ *****************************************************************************/
+
+#ifndef __CPU_H
+#define __CPU_H
+
+/* Used in boot_abort.S, will need something better for KVM */
+#define HSPRG0  304
+
+/* XXX FIXME: Can be more efficient, no dcbst nor loop needed on P7 */
+/* This macro uses r0 */
+#define FLUSH_CACHE(r, n)	add	n, n, r; \
+				addi	n, n, 127; \
+				rlwinm	r, r, 0,0,24; \
+				rlwinm	n, n, 0,0,24; \
+				sub	n, n, r; \
+				srwi	n, n, 7; \
+				mtctr	n; \
+			0:	dcbst	0, r; \
+				sync; \
+				icbi	0, r; \
+				sync; \
+				isync; \
+				addi	r, r, 128; \
+				bdnz	0b;
+
+#ifndef __ASSEMBLER__
+#define STRINGIFY(x...) #x
+#define EXPAND(x) STRINGIFY(x)
+
+static inline void flush_cache(void* r, long n)
+{
+	asm volatile(EXPAND(FLUSH_CACHE(%0, %1))
+		     : "+r"(r), "+r"(n)
+		     :: "memory", "cc", "r0", "ctr");
+}
+
+static inline void eieio(void)
+{
+	asm volatile ("eieio":::"memory");
+}
+
+static inline void barrier(void)
+{
+	asm volatile("" : : : "memory");
+}
+#define cpu_relax() barrier()
+
+static inline void sync(void)
+{
+	asm volatile ("sync" ::: "memory");
+}
+#define mb() sync()
+
+#endif /* __ASSEMBLER__ */
+
+#endif