1 files changed, 131 insertions, 0 deletions

diff --git a/arch/unicore32/include/asm/assembler.h b/arch/unicore32/include/asm/assembler.h
new file mode 100644
index 00000000000..8e87ed7faeb
--- /dev/null
+++ b/arch/unicore32/include/asm/assembler.h
@@ -0,0 +1,131 @@
+/*
+ * linux/arch/unicore32/include/asm/assembler.h
+ *
+ * Code specific to PKUnity SoC and UniCore ISA
+ *
+ * Copyright (C) 2001-2010 GUAN Xue-tao
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *  Do not include any C declarations in this file - it is included by
+ *  assembler source.
+ */
+#ifndef __ASSEMBLY__
+#error "Only include this from assembly code"
+#endif
+
+#include <asm/ptrace.h>
+
+/*
+ * Little Endian independent macros for shifting bytes within registers.
+ */
+#define pull            >>
+#define push            <<
+#define get_byte_0      << #0
+#define get_byte_1      >> #8
+#define get_byte_2      >> #16
+#define get_byte_3      >> #24
+#define put_byte_0      << #0
+#define put_byte_1      << #8
+#define put_byte_2      << #16
+#define put_byte_3      << #24
+
+#define cadd            cmpadd
+#define cand            cmpand
+#define csub            cmpsub
+#define cxor            cmpxor
+
+/*
+ * Enable and disable interrupts
+ */
+        .macro disable_irq, temp
+        mov     \temp, asr
+        andn     \temp, \temp, #0xFF
+        or      \temp, \temp, #PSR_I_BIT | PRIV_MODE
+        mov.a   asr, \temp
+        .endm
+
+        .macro enable_irq, temp
+        mov     \temp, asr
+        andn     \temp, \temp, #0xFF
+        or      \temp, \temp, #PRIV_MODE
+        mov.a   asr, \temp
+        .endm
+
+#define USER(x...)                              \
+9999:   x;                                      \
+        .pushsection __ex_table, "a";           \
+        .align  3;                              \
+        .long   9999b, 9001f;                   \
+        .popsection
+
+        .macro  notcond, cond, nexti = .+8
+        .ifc    \cond, eq
+                bne     \nexti
+        .else;  .ifc    \cond, ne
+                beq     \nexti
+        .else;  .ifc    \cond, ea
+                bub     \nexti
+        .else;  .ifc    \cond, ub
+                bea     \nexti
+        .else;  .ifc    \cond, fs
+                bns     \nexti
+        .else;  .ifc    \cond, ns
+                bfs     \nexti
+        .else;  .ifc    \cond, fv
+                bnv     \nexti
+        .else;  .ifc    \cond, nv
+                bfv     \nexti
+        .else;  .ifc    \cond, ua
+                beb     \nexti
+        .else;  .ifc    \cond, eb
+                bua     \nexti
+        .else;  .ifc    \cond, eg
+                bsl     \nexti
+        .else;  .ifc    \cond, sl
+                beg     \nexti
+        .else;  .ifc    \cond, sg
+                bel     \nexti
+        .else;  .ifc    \cond, el
+                bsg     \nexti
+        .else;  .ifnc   \cond, al
+                .error  "Unknown cond in notcond macro argument"
+        .endif; .endif; .endif; .endif; .endif; .endif; .endif
+        .endif; .endif; .endif; .endif; .endif; .endif; .endif
+        .endif
+        .endm
+
+        .macro  usracc, instr, reg, ptr, inc, cond, rept, abort
+        .rept   \rept
+        notcond \cond, .+8
+9999 :
+        .if     \inc == 1
+        \instr\()b.u \reg, [\ptr], #\inc
+        .elseif \inc == 4
+        \instr\()w.u \reg, [\ptr], #\inc
+        .else
+        .error  "Unsupported inc macro argument"
+        .endif
+
+        .pushsection __ex_table, "a"
+        .align  3
+        .long   9999b, \abort
+        .popsection
+        .endr
+        .endm
+
+        .macro  strusr, reg, ptr, inc, cond = al, rept = 1, abort = 9001f
+        usracc  st, \reg, \ptr, \inc, \cond, \rept, \abort
+        .endm
+
+        .macro  ldrusr, reg, ptr, inc, cond = al, rept = 1, abort = 9001f
+        usracc  ld, \reg, \ptr, \inc, \cond, \rept, \abort
+        .endm
+
+        .macro  nop8
+        .rept   8
+                nop
+        .endr
+        .endm