| /* |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file "COPYING" in the main directory of this archive |
| * for more details. |
| * |
| * Copyright (C) 2004, 2005, 2006, 2008 Thiemo Seufer |
| * Copyright (C) 2005 Maciej W. Rozycki |
| * Copyright (C) 2006 Ralf Baechle (ralf@linux-mips.org) |
| * Copyright (C) 2012 MIPS Technologies, Inc. |
| */ |
| |
| #include <linux/types.h> |
| |
| #ifdef CONFIG_EXPORT_UASM |
| #include <linux/export.h> |
| #define __uasminit |
| #define __uasminitdata |
| #define UASM_EXPORT_SYMBOL(sym) EXPORT_SYMBOL(sym) |
| #else |
| #define __uasminit __cpuinit |
| #define __uasminitdata __cpuinitdata |
| #define UASM_EXPORT_SYMBOL(sym) |
| #endif |
| |
| #define Ip_u1u2u3(op) \ |
| void __uasminit \ |
| uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) |
| |
| #define Ip_u2u1u3(op) \ |
| void __uasminit \ |
| uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) |
| |
| #define Ip_u3u1u2(op) \ |
| void __uasminit \ |
| uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c) |
| |
| #define Ip_u1u2s3(op) \ |
| void __uasminit \ |
| uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c) |
| |
| #define Ip_u2s3u1(op) \ |
| void __uasminit \ |
| uasm_i##op(u32 **buf, unsigned int a, signed int b, unsigned int c) |
| |
| #define Ip_u2u1s3(op) \ |
| void __uasminit \ |
| uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c) |
| |
| #define Ip_u2u1msbu3(op) \ |
| void __uasminit \ |
| uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c, \ |
| unsigned int d) |
| |
| #define Ip_u1u2(op) \ |
| void __uasminit uasm_i##op(u32 **buf, unsigned int a, unsigned int b) |
| |
| #define Ip_u1s2(op) \ |
| void __uasminit uasm_i##op(u32 **buf, unsigned int a, signed int b) |
| |
| #define Ip_u1(op) void __uasminit uasm_i##op(u32 **buf, unsigned int a) |
| |
| #define Ip_0(op) void __uasminit uasm_i##op(u32 **buf) |
| |
| Ip_u2u1s3(_addiu); |
| Ip_u3u1u2(_addu); |
| Ip_u3u1u2(_and); |
| Ip_u2u1u3(_andi); |
| Ip_u1u2s3(_bbit0); |
| Ip_u1u2s3(_bbit1); |
| Ip_u1u2s3(_beq); |
| Ip_u1u2s3(_beql); |
| Ip_u1s2(_bgez); |
| Ip_u1s2(_bgezl); |
| Ip_u1s2(_bltz); |
| Ip_u1s2(_bltzl); |
| Ip_u1u2s3(_bne); |
| Ip_u2s3u1(_cache); |
| Ip_u2u1s3(_daddiu); |
| Ip_u3u1u2(_daddu); |
| Ip_u2u1msbu3(_dins); |
| Ip_u2u1msbu3(_dinsm); |
| Ip_u1u2u3(_dmfc0); |
| Ip_u1u2u3(_dmtc0); |
| Ip_u2u1u3(_drotr); |
| Ip_u2u1u3(_drotr32); |
| Ip_u2u1u3(_dsll); |
| Ip_u2u1u3(_dsll32); |
| Ip_u2u1u3(_dsra); |
| Ip_u2u1u3(_dsrl); |
| Ip_u2u1u3(_dsrl32); |
| Ip_u3u1u2(_dsubu); |
| Ip_0(_eret); |
| Ip_u1(_j); |
| Ip_u1(_jal); |
| Ip_u1(_jr); |
| Ip_u2s3u1(_ld); |
| Ip_u3u1u2(_ldx); |
| Ip_u2s3u1(_ll); |
| Ip_u2s3u1(_lld); |
| Ip_u1s2(_lui); |
| Ip_u2s3u1(_lw); |
| Ip_u3u1u2(_lwx); |
| Ip_u1u2u3(_mfc0); |
| Ip_u1u2u3(_mtc0); |
| Ip_u3u1u2(_or); |
| Ip_u2u1u3(_ori); |
| Ip_u2s3u1(_pref); |
| Ip_0(_rfe); |
| Ip_u2u1u3(_rotr); |
| Ip_u2s3u1(_sc); |
| Ip_u2s3u1(_scd); |
| Ip_u2s3u1(_sd); |
| Ip_u2u1u3(_sll); |
| Ip_u2u1u3(_sra); |
| Ip_u2u1u3(_srl); |
| Ip_u3u1u2(_subu); |
| Ip_u2s3u1(_sw); |
| Ip_u1(_syscall); |
| Ip_0(_tlbp); |
| Ip_0(_tlbr); |
| Ip_0(_tlbwi); |
| Ip_0(_tlbwr); |
| Ip_u3u1u2(_xor); |
| Ip_u2u1u3(_xori); |
| |
| |
| /* Handle labels. */ |
| struct uasm_label { |
| u32 *addr; |
| int lab; |
| }; |
| |
| void __uasminit uasm_build_label(struct uasm_label **lab, u32 *addr, int lid); |
| #ifdef CONFIG_64BIT |
| int uasm_in_compat_space_p(long addr); |
| #endif |
| int uasm_rel_hi(long val); |
| int uasm_rel_lo(long val); |
| void UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr); |
| void UASM_i_LA(u32 **buf, unsigned int rs, long addr); |
| |
| #define UASM_L_LA(lb) \ |
| static inline void __uasminit uasm_l##lb(struct uasm_label **lab, u32 *addr) \ |
| { \ |
| uasm_build_label(lab, addr, label##lb); \ |
| } |
| |
| /* convenience macros for instructions */ |
| #ifdef CONFIG_64BIT |
| # define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_daddiu(buf, rs, rt, val) |
| # define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_daddu(buf, rs, rt, rd) |
| # define UASM_i_LL(buf, rs, rt, off) uasm_i_lld(buf, rs, rt, off) |
| # define UASM_i_LW(buf, rs, rt, off) uasm_i_ld(buf, rs, rt, off) |
| # define UASM_i_LWX(buf, rs, rt, rd) uasm_i_ldx(buf, rs, rt, rd) |
| # define UASM_i_MFC0(buf, rt, rd...) uasm_i_dmfc0(buf, rt, rd) |
| # define UASM_i_MTC0(buf, rt, rd...) uasm_i_dmtc0(buf, rt, rd) |
| # define UASM_i_ROTR(buf, rs, rt, sh) uasm_i_drotr(buf, rs, rt, sh) |
| # define UASM_i_SC(buf, rs, rt, off) uasm_i_scd(buf, rs, rt, off) |
| # define UASM_i_SLL(buf, rs, rt, sh) uasm_i_dsll(buf, rs, rt, sh) |
| # define UASM_i_SRA(buf, rs, rt, sh) uasm_i_dsra(buf, rs, rt, sh) |
| # define UASM_i_SRL(buf, rs, rt, sh) uasm_i_dsrl(buf, rs, rt, sh) |
| # define UASM_i_SRL_SAFE(buf, rs, rt, sh) uasm_i_dsrl_safe(buf, rs, rt, sh) |
| # define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_dsubu(buf, rs, rt, rd) |
| # define UASM_i_SW(buf, rs, rt, off) uasm_i_sd(buf, rs, rt, off) |
| #else |
| # define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_addiu(buf, rs, rt, val) |
| # define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_addu(buf, rs, rt, rd) |
| # define UASM_i_LL(buf, rs, rt, off) uasm_i_ll(buf, rs, rt, off) |
| # define UASM_i_LW(buf, rs, rt, off) uasm_i_lw(buf, rs, rt, off) |
| # define UASM_i_LWX(buf, rs, rt, rd) uasm_i_lwx(buf, rs, rt, rd) |
| # define UASM_i_MFC0(buf, rt, rd...) uasm_i_mfc0(buf, rt, rd) |
| # define UASM_i_MTC0(buf, rt, rd...) uasm_i_mtc0(buf, rt, rd) |
| # define UASM_i_ROTR(buf, rs, rt, sh) uasm_i_rotr(buf, rs, rt, sh) |
| # define UASM_i_SC(buf, rs, rt, off) uasm_i_sc(buf, rs, rt, off) |
| # define UASM_i_SLL(buf, rs, rt, sh) uasm_i_sll(buf, rs, rt, sh) |
| # define UASM_i_SRA(buf, rs, rt, sh) uasm_i_sra(buf, rs, rt, sh) |
| # define UASM_i_SRL(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh) |
| # define UASM_i_SRL_SAFE(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh) |
| # define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_subu(buf, rs, rt, rd) |
| # define UASM_i_SW(buf, rs, rt, off) uasm_i_sw(buf, rs, rt, off) |
| #endif |
| |
| #define uasm_i_b(buf, off) uasm_i_beq(buf, 0, 0, off) |
| #define uasm_i_beqz(buf, rs, off) uasm_i_beq(buf, rs, 0, off) |
| #define uasm_i_beqzl(buf, rs, off) uasm_i_beql(buf, rs, 0, off) |
| #define uasm_i_bnez(buf, rs, off) uasm_i_bne(buf, rs, 0, off) |
| #define uasm_i_bnezl(buf, rs, off) uasm_i_bnel(buf, rs, 0, off) |
| #define uasm_i_ehb(buf) uasm_i_sll(buf, 0, 0, 3) |
| #define uasm_i_move(buf, a, b) UASM_i_ADDU(buf, a, 0, b) |
| #define uasm_i_nop(buf) uasm_i_sll(buf, 0, 0, 0) |
| #define uasm_i_ssnop(buf) uasm_i_sll(buf, 0, 0, 1) |
| |
| static inline void uasm_i_drotr_safe(u32 **p, unsigned int a1, |
| unsigned int a2, unsigned int a3) |
| { |
| if (a3 < 32) |
| uasm_i_drotr(p, a1, a2, a3); |
| else |
| uasm_i_drotr32(p, a1, a2, a3 - 32); |
| } |
| |
| static inline void uasm_i_dsll_safe(u32 **p, unsigned int a1, |
| unsigned int a2, unsigned int a3) |
| { |
| if (a3 < 32) |
| uasm_i_dsll(p, a1, a2, a3); |
| else |
| uasm_i_dsll32(p, a1, a2, a3 - 32); |
| } |
| |
| static inline void uasm_i_dsrl_safe(u32 **p, unsigned int a1, |
| unsigned int a2, unsigned int a3) |
| { |
| if (a3 < 32) |
| uasm_i_dsrl(p, a1, a2, a3); |
| else |
| uasm_i_dsrl32(p, a1, a2, a3 - 32); |
| } |
| |
| /* Handle relocations. */ |
| struct uasm_reloc { |
| u32 *addr; |
| unsigned int type; |
| int lab; |
| }; |
| |
| /* This is zero so we can use zeroed label arrays. */ |
| #define UASM_LABEL_INVALID 0 |
| |
| void uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid); |
| void uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab); |
| void uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off); |
| void uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off); |
| void uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab, |
| u32 *first, u32 *end, u32 *target); |
| int uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr); |
| |
| /* Convenience functions for labeled branches. */ |
| void uasm_il_b(u32 **p, struct uasm_reloc **r, int lid); |
| void uasm_il_bbit0(u32 **p, struct uasm_reloc **r, unsigned int reg, |
| unsigned int bit, int lid); |
| void uasm_il_bbit1(u32 **p, struct uasm_reloc **r, unsigned int reg, |
| unsigned int bit, int lid); |
| void uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); |
| void uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); |
| void uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); |
| void uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); |
| void uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); |
| void uasm_il_bne(u32 **p, struct uasm_reloc **r, unsigned int reg1, |
| unsigned int reg2, int lid); |
| void uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid); |
