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-rw-r--r--arch/mips/mm/uasm.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/arch/mips/mm/uasm.c b/arch/mips/mm/uasm.c
index 4adf30284813..f86d293463a6 100644
--- a/arch/mips/mm/uasm.c
+++ b/arch/mips/mm/uasm.c
@@ -24,7 +24,8 @@ enum fields {
24 JIMM = 0x080, 24 JIMM = 0x080,
25 FUNC = 0x100, 25 FUNC = 0x100,
26 SET = 0x200, 26 SET = 0x200,
27 SCIMM = 0x400 27 SCIMM = 0x400,
28 SIMM9 = 0x800,
28}; 29};
29 30
30#define OP_MASK 0x3f 31#define OP_MASK 0x3f
@@ -41,6 +42,8 @@ enum fields {
41#define FUNC_SH 0 42#define FUNC_SH 0
42#define SET_MASK 0x7 43#define SET_MASK 0x7
43#define SET_SH 0 44#define SET_SH 0
45#define SIMM9_SH 7
46#define SIMM9_MASK 0x1ff
44 47
45enum opcode { 48enum opcode {
46 insn_invalid, 49 insn_invalid,
@@ -116,6 +119,14 @@ static inline u32 build_scimm(u32 arg)
116 return (arg & SCIMM_MASK) << SCIMM_SH; 119 return (arg & SCIMM_MASK) << SCIMM_SH;
117} 120}
118 121
122static inline u32 build_scimm9(s32 arg)
123{
124 WARN((arg > 0xff || arg < -0x100),
125 KERN_WARNING "Micro-assembler field overflow\n");
126
127 return (arg & SIMM9_MASK) << SIMM9_SH;
128}
129
119static inline u32 build_func(u32 arg) 130static inline u32 build_func(u32 arg)
120{ 131{
121 WARN(arg & ~FUNC_MASK, KERN_WARNING "Micro-assembler field overflow\n"); 132 WARN(arg & ~FUNC_MASK, KERN_WARNING "Micro-assembler field overflow\n");