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-rw-r--r--arch/mips/mm/uasm.c47
1 files changed, 39 insertions, 8 deletions
diff --git a/arch/mips/mm/uasm.c b/arch/mips/mm/uasm.c
index f467199676a8..611d564fdcf1 100644
--- a/arch/mips/mm/uasm.c
+++ b/arch/mips/mm/uasm.c
@@ -19,8 +19,7 @@
19#include <asm/inst.h> 19#include <asm/inst.h>
20#include <asm/elf.h> 20#include <asm/elf.h>
21#include <asm/bugs.h> 21#include <asm/bugs.h>
22 22#include <asm/uasm.h>
23#include "uasm.h"
24 23
25enum fields { 24enum fields {
26 RS = 0x001, 25 RS = 0x001,
@@ -32,7 +31,8 @@ enum fields {
32 BIMM = 0x040, 31 BIMM = 0x040,
33 JIMM = 0x080, 32 JIMM = 0x080,
34 FUNC = 0x100, 33 FUNC = 0x100,
35 SET = 0x200 34 SET = 0x200,
35 SCIMM = 0x400
36}; 36};
37 37
38#define OP_MASK 0x3f 38#define OP_MASK 0x3f
@@ -53,6 +53,8 @@ enum fields {
53#define FUNC_SH 0 53#define FUNC_SH 0
54#define SET_MASK 0x7 54#define SET_MASK 0x7
55#define SET_SH 0 55#define SET_SH 0
56#define SCIMM_MASK 0xfffff
57#define SCIMM_SH 6
56 58
57enum opcode { 59enum opcode {
58 insn_invalid, 60 insn_invalid,
@@ -60,11 +62,12 @@ enum opcode {
60 insn_beql, insn_bgez, insn_bgezl, insn_bltz, insn_bltzl, 62 insn_beql, insn_bgez, insn_bgezl, insn_bltz, insn_bltzl,
61 insn_bne, insn_cache, insn_daddu, insn_daddiu, insn_dmfc0, 63 insn_bne, insn_cache, insn_daddu, insn_daddiu, insn_dmfc0,
62 insn_dmtc0, insn_dsll, insn_dsll32, insn_dsra, insn_dsrl, 64 insn_dmtc0, insn_dsll, insn_dsll32, insn_dsra, insn_dsrl,
63 insn_dsrl32, insn_dsubu, insn_eret, insn_j, insn_jal, insn_jr, 65 insn_dsrl32, insn_drotr, insn_dsubu, insn_eret, insn_j, insn_jal,
64 insn_ld, insn_ll, insn_lld, insn_lui, insn_lw, insn_mfc0, 66 insn_jr, insn_ld, insn_ll, insn_lld, insn_lui, insn_lw, insn_mfc0,
65 insn_mtc0, insn_ori, insn_pref, insn_rfe, insn_sc, insn_scd, 67 insn_mtc0, insn_or, insn_ori, insn_pref, insn_rfe, insn_sc, insn_scd,
66 insn_sd, insn_sll, insn_sra, insn_srl, insn_subu, insn_sw, 68 insn_sd, insn_sll, insn_sra, insn_srl, insn_rotr, insn_subu, insn_sw,
67 insn_tlbp, insn_tlbwi, insn_tlbwr, insn_xor, insn_xori 69 insn_tlbp, insn_tlbr, insn_tlbwi, insn_tlbwr, insn_xor, insn_xori,
70 insn_dins, insn_syscall
68}; 71};
69 72
70struct insn { 73struct insn {
@@ -104,6 +107,7 @@ static struct insn insn_table[] __cpuinitdata = {
104 { insn_dsra, M(spec_op, 0, 0, 0, 0, dsra_op), RT | RD | RE }, 107 { insn_dsra, M(spec_op, 0, 0, 0, 0, dsra_op), RT | RD | RE },
105 { insn_dsrl, M(spec_op, 0, 0, 0, 0, dsrl_op), RT | RD | RE }, 108 { insn_dsrl, M(spec_op, 0, 0, 0, 0, dsrl_op), RT | RD | RE },
106 { insn_dsrl32, M(spec_op, 0, 0, 0, 0, dsrl32_op), RT | RD | RE }, 109 { insn_dsrl32, M(spec_op, 0, 0, 0, 0, dsrl32_op), RT | RD | RE },
110 { insn_drotr, M(spec_op, 1, 0, 0, 0, dsrl_op), RT | RD | RE },
107 { insn_dsubu, M(spec_op, 0, 0, 0, 0, dsubu_op), RS | RT | RD }, 111 { insn_dsubu, M(spec_op, 0, 0, 0, 0, dsubu_op), RS | RT | RD },
108 { insn_eret, M(cop0_op, cop_op, 0, 0, 0, eret_op), 0 }, 112 { insn_eret, M(cop0_op, cop_op, 0, 0, 0, eret_op), 0 },
109 { insn_j, M(j_op, 0, 0, 0, 0, 0), JIMM }, 113 { insn_j, M(j_op, 0, 0, 0, 0, 0), JIMM },
@@ -116,6 +120,7 @@ static struct insn insn_table[] __cpuinitdata = {
116 { insn_lw, M(lw_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, 120 { insn_lw, M(lw_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
117 { insn_mfc0, M(cop0_op, mfc_op, 0, 0, 0, 0), RT | RD | SET}, 121 { insn_mfc0, M(cop0_op, mfc_op, 0, 0, 0, 0), RT | RD | SET},
118 { insn_mtc0, M(cop0_op, mtc_op, 0, 0, 0, 0), RT | RD | SET}, 122 { insn_mtc0, M(cop0_op, mtc_op, 0, 0, 0, 0), RT | RD | SET},
123 { insn_or, M(spec_op, 0, 0, 0, 0, or_op), RS | RT | RD },
119 { insn_ori, M(ori_op, 0, 0, 0, 0, 0), RS | RT | UIMM }, 124 { insn_ori, M(ori_op, 0, 0, 0, 0, 0), RS | RT | UIMM },
120 { insn_pref, M(pref_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, 125 { insn_pref, M(pref_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
121 { insn_rfe, M(cop0_op, cop_op, 0, 0, 0, rfe_op), 0 }, 126 { insn_rfe, M(cop0_op, cop_op, 0, 0, 0, rfe_op), 0 },
@@ -125,13 +130,17 @@ static struct insn insn_table[] __cpuinitdata = {
125 { insn_sll, M(spec_op, 0, 0, 0, 0, sll_op), RT | RD | RE }, 130 { insn_sll, M(spec_op, 0, 0, 0, 0, sll_op), RT | RD | RE },
126 { insn_sra, M(spec_op, 0, 0, 0, 0, sra_op), RT | RD | RE }, 131 { insn_sra, M(spec_op, 0, 0, 0, 0, sra_op), RT | RD | RE },
127 { insn_srl, M(spec_op, 0, 0, 0, 0, srl_op), RT | RD | RE }, 132 { insn_srl, M(spec_op, 0, 0, 0, 0, srl_op), RT | RD | RE },
133 { insn_rotr, M(spec_op, 1, 0, 0, 0, srl_op), RT | RD | RE },
128 { insn_subu, M(spec_op, 0, 0, 0, 0, subu_op), RS | RT | RD }, 134 { insn_subu, M(spec_op, 0, 0, 0, 0, subu_op), RS | RT | RD },
129 { insn_sw, M(sw_op, 0, 0, 0, 0, 0), RS | RT | SIMM }, 135 { insn_sw, M(sw_op, 0, 0, 0, 0, 0), RS | RT | SIMM },
130 { insn_tlbp, M(cop0_op, cop_op, 0, 0, 0, tlbp_op), 0 }, 136 { insn_tlbp, M(cop0_op, cop_op, 0, 0, 0, tlbp_op), 0 },
137 { insn_tlbr, M(cop0_op, cop_op, 0, 0, 0, tlbr_op), 0 },
131 { insn_tlbwi, M(cop0_op, cop_op, 0, 0, 0, tlbwi_op), 0 }, 138 { insn_tlbwi, M(cop0_op, cop_op, 0, 0, 0, tlbwi_op), 0 },
132 { insn_tlbwr, M(cop0_op, cop_op, 0, 0, 0, tlbwr_op), 0 }, 139 { insn_tlbwr, M(cop0_op, cop_op, 0, 0, 0, tlbwr_op), 0 },
133 { insn_xor, M(spec_op, 0, 0, 0, 0, xor_op), RS | RT | RD }, 140 { insn_xor, M(spec_op, 0, 0, 0, 0, xor_op), RS | RT | RD },
134 { insn_xori, M(xori_op, 0, 0, 0, 0, 0), RS | RT | UIMM }, 141 { insn_xori, M(xori_op, 0, 0, 0, 0, 0), RS | RT | UIMM },
142 { insn_dins, M(spec3_op, 0, 0, 0, 0, dins_op), RS | RT | RD | RE },
143 { insn_syscall, M(spec_op, 0, 0, 0, 0, syscall_op), SCIMM},
135 { insn_invalid, 0, 0 } 144 { insn_invalid, 0, 0 }
136}; 145};
137 146
@@ -204,6 +213,14 @@ static inline __cpuinit u32 build_jimm(u32 arg)
204 return (arg >> 2) & JIMM_MASK; 213 return (arg >> 2) & JIMM_MASK;
205} 214}
206 215
216static inline __cpuinit u32 build_scimm(u32 arg)
217{
218 if (arg & ~SCIMM_MASK)
219 printk(KERN_WARNING "Micro-assembler field overflow\n");
220
221 return (arg & SCIMM_MASK) << SCIMM_SH;
222}
223
207static inline __cpuinit u32 build_func(u32 arg) 224static inline __cpuinit u32 build_func(u32 arg)
208{ 225{
209 if (arg & ~FUNC_MASK) 226 if (arg & ~FUNC_MASK)
@@ -262,6 +279,8 @@ static void __cpuinit build_insn(u32 **buf, enum opcode opc, ...)
262 op |= build_func(va_arg(ap, u32)); 279 op |= build_func(va_arg(ap, u32));
263 if (ip->fields & SET) 280 if (ip->fields & SET)
264 op |= build_set(va_arg(ap, u32)); 281 op |= build_set(va_arg(ap, u32));
282 if (ip->fields & SCIMM)
283 op |= build_scimm(va_arg(ap, u32));
265 va_end(ap); 284 va_end(ap);
266 285
267 **buf = op; 286 **buf = op;
@@ -304,6 +323,12 @@ Ip_u2u1s3(op) \
304 build_insn(buf, insn##op, b, a, c); \ 323 build_insn(buf, insn##op, b, a, c); \
305} 324}
306 325
326#define I_u2u1msbu3(op) \
327Ip_u2u1msbu3(op) \
328{ \
329 build_insn(buf, insn##op, b, a, c+d-1, c); \
330}
331
307#define I_u1u2(op) \ 332#define I_u1u2(op) \
308Ip_u1u2(op) \ 333Ip_u1u2(op) \
309{ \ 334{ \
@@ -349,6 +374,7 @@ I_u2u1u3(_dsll32)
349I_u2u1u3(_dsra) 374I_u2u1u3(_dsra)
350I_u2u1u3(_dsrl) 375I_u2u1u3(_dsrl)
351I_u2u1u3(_dsrl32) 376I_u2u1u3(_dsrl32)
377I_u2u1u3(_drotr)
352I_u3u1u2(_dsubu) 378I_u3u1u2(_dsubu)
353I_0(_eret) 379I_0(_eret)
354I_u1(_j) 380I_u1(_j)
@@ -362,6 +388,7 @@ I_u2s3u1(_lw)
362I_u1u2u3(_mfc0) 388I_u1u2u3(_mfc0)
363I_u1u2u3(_mtc0) 389I_u1u2u3(_mtc0)
364I_u2u1u3(_ori) 390I_u2u1u3(_ori)
391I_u3u1u2(_or)
365I_u2s3u1(_pref) 392I_u2s3u1(_pref)
366I_0(_rfe) 393I_0(_rfe)
367I_u2s3u1(_sc) 394I_u2s3u1(_sc)
@@ -370,13 +397,17 @@ I_u2s3u1(_sd)
370I_u2u1u3(_sll) 397I_u2u1u3(_sll)
371I_u2u1u3(_sra) 398I_u2u1u3(_sra)
372I_u2u1u3(_srl) 399I_u2u1u3(_srl)
400I_u2u1u3(_rotr)
373I_u3u1u2(_subu) 401I_u3u1u2(_subu)
374I_u2s3u1(_sw) 402I_u2s3u1(_sw)
375I_0(_tlbp) 403I_0(_tlbp)
404I_0(_tlbr)
376I_0(_tlbwi) 405I_0(_tlbwi)
377I_0(_tlbwr) 406I_0(_tlbwr)
378I_u3u1u2(_xor) 407I_u3u1u2(_xor)
379I_u2u1u3(_xori) 408I_u2u1u3(_xori)
409I_u2u1msbu3(_dins);
410I_u1(_syscall);
380 411
381/* Handle labels. */ 412/* Handle labels. */
382void __cpuinit uasm_build_label(struct uasm_label **lab, u32 *addr, int lid) 413void __cpuinit uasm_build_label(struct uasm_label **lab, u32 *addr, int lid)