Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / powerpc / include / asm / asm-compat.h

diff --git a/kernel/arch/powerpc/include/asm/asm-compat.h b/kernel/arch/powerpc/include/asm/asm-compat.h
new file mode 100644 (file)
index 0000000..dc85dcb
--- /dev/null
+++ b/kernel/arch/powerpc/include/asm/asm-compat.h
@@ -0,0 +1,84 @@
+#ifndef _ASM_POWERPC_ASM_COMPAT_H
+#define _ASM_POWERPC_ASM_COMPAT_H
+
+#include <asm/types.h>
+#include <asm/ppc-opcode.h>
+
+#ifdef __ASSEMBLY__
+#  define stringify_in_c(...)  __VA_ARGS__
+#  define ASM_CONST(x)         x
+#else
+/* This version of stringify will deal with commas... */
+#  define __stringify_in_c(...)        #__VA_ARGS__
+#  define stringify_in_c(...)  __stringify_in_c(__VA_ARGS__) " "
+#  define __ASM_CONST(x)       x##UL
+#  define ASM_CONST(x)         __ASM_CONST(x)
+#endif
+
+
+#ifdef __powerpc64__
+
+/* operations for longs and pointers */
+#define PPC_LL         stringify_in_c(ld)
+#define PPC_STL                stringify_in_c(std)
+#define PPC_STLU       stringify_in_c(stdu)
+#define PPC_LCMPI      stringify_in_c(cmpdi)
+#define PPC_LCMPLI     stringify_in_c(cmpldi)
+#define PPC_LCMP       stringify_in_c(cmpd)
+#define PPC_LONG       stringify_in_c(.llong)
+#define PPC_LONG_ALIGN stringify_in_c(.balign 8)
+#define PPC_TLNEI      stringify_in_c(tdnei)
+#define PPC_LLARX(t, a, b, eh) PPC_LDARX(t, a, b, eh)
+#define PPC_STLCX      stringify_in_c(stdcx.)
+#define PPC_CNTLZL     stringify_in_c(cntlzd)
+#define PPC_MTOCRF(FXM, RS) MTOCRF((FXM), RS)
+#define PPC_LR_STKOFF  16
+#define PPC_MIN_STKFRM 112
+
+#ifdef __BIG_ENDIAN__
+#define LWZX_BE        stringify_in_c(lwzx)
+#define LDX_BE stringify_in_c(ldx)
+#define STWX_BE        stringify_in_c(stwx)
+#define STDX_BE        stringify_in_c(stdx)
+#else
+#define LWZX_BE        stringify_in_c(lwbrx)
+#define LDX_BE stringify_in_c(ldbrx)
+#define STWX_BE        stringify_in_c(stwbrx)
+#define STDX_BE        stringify_in_c(stdbrx)
+#endif
+
+#else /* 32-bit */
+
+/* operations for longs and pointers */
+#define PPC_LL         stringify_in_c(lwz)
+#define PPC_STL                stringify_in_c(stw)
+#define PPC_STLU       stringify_in_c(stwu)
+#define PPC_LCMPI      stringify_in_c(cmpwi)
+#define PPC_LCMPLI     stringify_in_c(cmplwi)
+#define PPC_LCMP       stringify_in_c(cmpw)
+#define PPC_LONG       stringify_in_c(.long)
+#define PPC_LONG_ALIGN stringify_in_c(.balign 4)
+#define PPC_TLNEI      stringify_in_c(twnei)
+#define PPC_LLARX(t, a, b, eh) PPC_LWARX(t, a, b, eh)
+#define PPC_STLCX      stringify_in_c(stwcx.)
+#define PPC_CNTLZL     stringify_in_c(cntlzw)
+#define PPC_MTOCRF     stringify_in_c(mtcrf)
+#define PPC_LR_STKOFF  4
+#define PPC_MIN_STKFRM 16
+
+#endif
+
+#ifdef __KERNEL__
+#ifdef CONFIG_IBM405_ERR77
+/* Erratum #77 on the 405 means we need a sync or dcbt before every
+ * stwcx.  The old ATOMIC_SYNC_FIX covered some but not all of this.
+ */
+#define PPC405_ERR77(ra,rb)    stringify_in_c(dcbt     ra, rb;)
+#define        PPC405_ERR77_SYNC       stringify_in_c(sync;)
+#else
+#define PPC405_ERR77(ra,rb)
+#define PPC405_ERR77_SYNC
+#endif
+#endif
+
+#endif /* _ASM_POWERPC_ASM_COMPAT_H */