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| author | Ralf Baechle <ralf@linux-mips.org> | 2015-02-19 16:00:34 +0100 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2015-02-19 16:00:34 +0100 |
| commit | 661af35e5fd878f915ed05dbbfe383f64133f98c (patch) | |
| tree | 956b7efd662b682224e61060552fdcf4201101bf /arch/mips/mm/uasm.c | |
| parent | ca5d25642e212f73492d332d95dc90ef46a0e8dc (diff) | |
| parent | f296e7c48d3155991b99f41372e1786c5be03457 (diff) | |
Merge branch 'mipsr6-for-3.20' of git://git.linux-mips.org/pub/scm/mchandras/linux into mips-for-linux-next
Diffstat (limited to 'arch/mips/mm/uasm.c')
| -rw-r--r-- | arch/mips/mm/uasm.c | 13 |
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 { JIMM = 0x080, FUNC = 0x100, SET = 0x200, - SCIMM = 0x400 + SCIMM = 0x400, + SIMM9 = 0x800, }; #define OP_MASK 0x3f @@ -41,6 +42,8 @@ enum fields { #define FUNC_SH 0 #define SET_MASK 0x7 #define SET_SH 0 +#define SIMM9_SH 7 +#define SIMM9_MASK 0x1ff enum opcode { insn_invalid, @@ -116,6 +119,14 @@ static inline u32 build_scimm(u32 arg) return (arg & SCIMM_MASK) << SCIMM_SH; } +static inline u32 build_scimm9(s32 arg) +{ + WARN((arg > 0xff || arg < -0x100), + KERN_WARNING "Micro-assembler field overflow\n"); + + return (arg & SIMM9_MASK) << SIMM9_SH; +} + static inline u32 build_func(u32 arg) { WARN(arg & ~FUNC_MASK, KERN_WARNING "Micro-assembler field overflow\n"); |