summaryrefslogtreecommitdiff
path: root/arch/powerpc/boot/reg.h
diff options
context:
space:
mode:
authorSrikant Patnaik2015-01-13 15:08:24 +0530
committerSrikant Patnaik2015-01-13 15:08:24 +0530
commit97327692361306d1e6259021bc425e32832fdb50 (patch)
treefe9088f3248ec61e24f404f21b9793cb644b7f01 /arch/powerpc/boot/reg.h
parent2d05a8f663478a44e088d122e0d62109bbc801d0 (diff)
parenta3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff)
downloadFOSSEE-netbook-kernel-source-97327692361306d1e6259021bc425e32832fdb50.tar.gz
FOSSEE-netbook-kernel-source-97327692361306d1e6259021bc425e32832fdb50.tar.bz2
FOSSEE-netbook-kernel-source-97327692361306d1e6259021bc425e32832fdb50.zip
dirty fix to merging
Diffstat (limited to 'arch/powerpc/boot/reg.h')
-rw-r--r--arch/powerpc/boot/reg.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/powerpc/boot/reg.h b/arch/powerpc/boot/reg.h
new file mode 100644
index 00000000..9c2c9978
--- /dev/null
+++ b/arch/powerpc/boot/reg.h
@@ -0,0 +1,30 @@
+#ifndef _PPC_BOOT_REG_H
+#define _PPC_BOOT_REG_H
+/*
+ * Copyright 2007 Davud Gibson, IBM Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+static inline u32 mfpvr(void)
+{
+ u32 pvr;
+ asm volatile ("mfpvr %0" : "=r"(pvr));
+ return pvr;
+}
+
+#define __stringify_1(x) #x
+#define __stringify(x) __stringify_1(x)
+
+#define mfspr(rn) ({unsigned long rval; \
+ asm volatile("mfspr %0," __stringify(rn) \
+ : "=r" (rval)); rval; })
+#define mtspr(rn, v) asm volatile("mtspr " __stringify(rn) ",%0" : : "r" (v))
+
+register void *__stack_pointer asm("r1");
+#define get_sp() (__stack_pointer)
+
+#endif /* _PPC_BOOT_REG_H */