Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / SLOF / include / ppcp7 / cpu.h

diff --git a/qemu/roms/SLOF/include/ppcp7/cpu.h b/qemu/roms/SLOF/include/ppcp7/cpu.h
new file mode 100644 (file)
index 0000000..1b1fadd
--- /dev/null
+++ b/qemu/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