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Diffstat (limited to 'arch/mips/mm/uasm.c')
-rw-r--r--arch/mips/mm/uasm.c23
1 files changed, 20 insertions, 3 deletions
diff --git a/arch/mips/mm/uasm.c b/arch/mips/mm/uasm.c
index 1581e98..611d564 100644
--- a/arch/mips/mm/uasm.c
+++ b/arch/mips/mm/uasm.c
@@ -31,7 +31,8 @@ enum fields {
BIMM = 0x040,
JIMM = 0x080,
FUNC = 0x100,
- SET = 0x200
+ SET = 0x200,
+ SCIMM = 0x400
};
#define OP_MASK 0x3f
@@ -52,6 +53,8 @@ enum fields {
#define FUNC_SH 0
#define SET_MASK 0x7
#define SET_SH 0
+#define SCIMM_MASK 0xfffff
+#define SCIMM_SH 6
enum opcode {
insn_invalid,
@@ -61,10 +64,10 @@ enum opcode {
insn_dmtc0, insn_dsll, insn_dsll32, insn_dsra, insn_dsrl,
insn_dsrl32, insn_drotr, insn_dsubu, insn_eret, insn_j, insn_jal,
insn_jr, insn_ld, insn_ll, insn_lld, insn_lui, insn_lw, insn_mfc0,
- insn_mtc0, insn_ori, insn_pref, insn_rfe, insn_sc, insn_scd,
+ insn_mtc0, insn_or, insn_ori, insn_pref, insn_rfe, insn_sc, insn_scd,
insn_sd, insn_sll, insn_sra, insn_srl, insn_rotr, insn_subu, insn_sw,
insn_tlbp, insn_tlbr, insn_tlbwi, insn_tlbwr, insn_xor, insn_xori,
- insn_dins
+ insn_dins, insn_syscall
};
struct insn {
@@ -117,6 +120,7 @@ static struct insn insn_table[] __cpuinitdata = {
{ insn_lw, M(lw_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
{ insn_mfc0, M(cop0_op, mfc_op, 0, 0, 0, 0), RT | RD | SET},
{ insn_mtc0, M(cop0_op, mtc_op, 0, 0, 0, 0), RT | RD | SET},
+ { insn_or, M(spec_op, 0, 0, 0, 0, or_op), RS | RT | RD },
{ insn_ori, M(ori_op, 0, 0, 0, 0, 0), RS | RT | UIMM },
{ insn_pref, M(pref_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
{ insn_rfe, M(cop0_op, cop_op, 0, 0, 0, rfe_op), 0 },
@@ -136,6 +140,7 @@ static struct insn insn_table[] __cpuinitdata = {
{ insn_xor, M(spec_op, 0, 0, 0, 0, xor_op), RS | RT | RD },
{ insn_xori, M(xori_op, 0, 0, 0, 0, 0), RS | RT | UIMM },
{ insn_dins, M(spec3_op, 0, 0, 0, 0, dins_op), RS | RT | RD | RE },
+ { insn_syscall, M(spec_op, 0, 0, 0, 0, syscall_op), SCIMM},
{ insn_invalid, 0, 0 }
};
@@ -208,6 +213,14 @@ static inline __cpuinit u32 build_jimm(u32 arg)
return (arg >> 2) & JIMM_MASK;
}
+static inline __cpuinit u32 build_scimm(u32 arg)
+{
+ if (arg & ~SCIMM_MASK)
+ printk(KERN_WARNING "Micro-assembler field overflow\n");
+
+ return (arg & SCIMM_MASK) << SCIMM_SH;
+}
+
static inline __cpuinit u32 build_func(u32 arg)
{
if (arg & ~FUNC_MASK)
@@ -266,6 +279,8 @@ static void __cpuinit build_insn(u32 **buf, enum opcode opc, ...)
op |= build_func(va_arg(ap, u32));
if (ip->fields & SET)
op |= build_set(va_arg(ap, u32));
+ if (ip->fields & SCIMM)
+ op |= build_scimm(va_arg(ap, u32));
va_end(ap);
**buf = op;
@@ -373,6 +388,7 @@ I_u2s3u1(_lw)
I_u1u2u3(_mfc0)
I_u1u2u3(_mtc0)
I_u2u1u3(_ori)
+I_u3u1u2(_or)
I_u2s3u1(_pref)
I_0(_rfe)
I_u2s3u1(_sc)
@@ -391,6 +407,7 @@ I_0(_tlbwr)
I_u3u1u2(_xor)
I_u2u1u3(_xori)
I_u2u1msbu3(_dins);
+I_u1(_syscall);
/* Handle labels. */
void __cpuinit uasm_build_label(struct uasm_label **lab, u32 *addr, int lid)
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