tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * Copyright (C) 2004, 2005, 2006, 2008 Thiemo Seufer
7 * Copyright (C) 2005 Maciej W. Rozycki
8 * Copyright (C) 2006 Ralf Baechle (ralf@linux-mips.org)
9 */
10
11#include <linux/types.h>
12
13#define Ip_u1u2u3(op) \
14void __init \
15uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c)
16
17#define Ip_u2u1u3(op) \
18void __init \
19uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c)
20
21#define Ip_u3u1u2(op) \
22void __init \
23uasm_i##op(u32 **buf, unsigned int a, unsigned int b, unsigned int c)
24
25#define Ip_u1u2s3(op) \
26void __init \
27uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c)
28
29#define Ip_u2s3u1(op) \
30void __init \
31uasm_i##op(u32 **buf, unsigned int a, signed int b, unsigned int c)
32
33#define Ip_u2u1s3(op) \
34void __init \
35uasm_i##op(u32 **buf, unsigned int a, unsigned int b, signed int c)
36
37#define Ip_u1u2(op) \
38void __init uasm_i##op(u32 **buf, unsigned int a, unsigned int b)
39
40#define Ip_u1s2(op) \
41void __init uasm_i##op(u32 **buf, unsigned int a, signed int b)
42
43#define Ip_u1(op) void __init uasm_i##op(u32 **buf, unsigned int a)
44
45#define Ip_0(op) void __init uasm_i##op(u32 **buf)
46
47Ip_u2u1s3(_addiu);
48Ip_u3u1u2(_addu);
49Ip_u2u1u3(_andi);
50Ip_u3u1u2(_and);
51Ip_u1u2s3(_beq);
52Ip_u1u2s3(_beql);
53Ip_u1s2(_bgez);
54Ip_u1s2(_bgezl);
55Ip_u1s2(_bltz);
56Ip_u1s2(_bltzl);
57Ip_u1u2s3(_bne);
58Ip_u1u2u3(_dmfc0);
59Ip_u1u2u3(_dmtc0);
60Ip_u2u1s3(_daddiu);
61Ip_u3u1u2(_daddu);
62Ip_u2u1u3(_dsll);
63Ip_u2u1u3(_dsll32);
64Ip_u2u1u3(_dsra);
65Ip_u2u1u3(_dsrl);
66Ip_u2u1u3(_dsrl32);
67Ip_u3u1u2(_dsubu);
68Ip_0(_eret);
69Ip_u1(_j);
70Ip_u1(_jal);
71Ip_u1(_jr);
72Ip_u2s3u1(_ld);
73Ip_u2s3u1(_ll);
74Ip_u2s3u1(_lld);
75Ip_u1s2(_lui);
76Ip_u2s3u1(_lw);
77Ip_u1u2u3(_mfc0);
78Ip_u1u2u3(_mtc0);
79Ip_u2u1u3(_ori);
80Ip_0(_rfe);
81Ip_u2s3u1(_sc);
82Ip_u2s3u1(_scd);
83Ip_u2s3u1(_sd);
84Ip_u2u1u3(_sll);
85Ip_u2u1u3(_sra);
86Ip_u2u1u3(_srl);
87Ip_u3u1u2(_subu);
88Ip_u2s3u1(_sw);
89Ip_0(_tlbp);
90Ip_0(_tlbwi);
91Ip_0(_tlbwr);
92Ip_u3u1u2(_xor);
93Ip_u2u1u3(_xori);
94
95/* Handle labels. */
96struct uasm_label {
97 u32 *addr;
98 int lab;
99};
100
101void __init uasm_build_label(struct uasm_label **lab, u32 *addr, int lid);
102#ifdef CONFIG_64BIT
103int __init uasm_in_compat_space_p(long addr);
104int __init uasm_rel_highest(long val);
105int __init uasm_rel_higher(long val);
106#endif
107int __init uasm_rel_hi(long val);
108int __init uasm_rel_lo(long val);
109void __init UASM_i_LA_mostly(u32 **buf, unsigned int rs, long addr);
110void __init UASM_i_LA(u32 **buf, unsigned int rs, long addr);
111
112#define UASM_L_LA(lb) \
113static inline void __init uasm_l##lb(struct uasm_label **lab, u32 *addr) \
114{ \
115 uasm_build_label(lab, addr, label##lb); \
116}
117
118/* convenience macros for instructions */
119#ifdef CONFIG_64BIT
120# define UASM_i_LW(buf, rs, rt, off) uasm_i_ld(buf, rs, rt, off)
121# define UASM_i_SW(buf, rs, rt, off) uasm_i_sd(buf, rs, rt, off)
122# define UASM_i_SLL(buf, rs, rt, sh) uasm_i_dsll(buf, rs, rt, sh)
123# define UASM_i_SRA(buf, rs, rt, sh) uasm_i_dsra(buf, rs, rt, sh)
124# define UASM_i_SRL(buf, rs, rt, sh) uasm_i_dsrl(buf, rs, rt, sh)
125# define UASM_i_MFC0(buf, rt, rd...) uasm_i_dmfc0(buf, rt, rd)
126# define UASM_i_MTC0(buf, rt, rd...) uasm_i_dmtc0(buf, rt, rd)
127# define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_daddiu(buf, rs, rt, val)
128# define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_daddu(buf, rs, rt, rd)
129# define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_dsubu(buf, rs, rt, rd)
130# define UASM_i_LL(buf, rs, rt, off) uasm_i_lld(buf, rs, rt, off)
131# define UASM_i_SC(buf, rs, rt, off) uasm_i_scd(buf, rs, rt, off)
132#else
133# define UASM_i_LW(buf, rs, rt, off) uasm_i_lw(buf, rs, rt, off)
134# define UASM_i_SW(buf, rs, rt, off) uasm_i_sw(buf, rs, rt, off)
135# define UASM_i_SLL(buf, rs, rt, sh) uasm_i_sll(buf, rs, rt, sh)
136# define UASM_i_SRA(buf, rs, rt, sh) uasm_i_sra(buf, rs, rt, sh)
137# define UASM_i_SRL(buf, rs, rt, sh) uasm_i_srl(buf, rs, rt, sh)
138# define UASM_i_MFC0(buf, rt, rd...) uasm_i_mfc0(buf, rt, rd)
139# define UASM_i_MTC0(buf, rt, rd...) uasm_i_mtc0(buf, rt, rd)
140# define UASM_i_ADDIU(buf, rs, rt, val) uasm_i_addiu(buf, rs, rt, val)
141# define UASM_i_ADDU(buf, rs, rt, rd) uasm_i_addu(buf, rs, rt, rd)
142# define UASM_i_SUBU(buf, rs, rt, rd) uasm_i_subu(buf, rs, rt, rd)
143# define UASM_i_LL(buf, rs, rt, off) uasm_i_ll(buf, rs, rt, off)
144# define UASM_i_SC(buf, rs, rt, off) uasm_i_sc(buf, rs, rt, off)
145#endif
146
147#define uasm_i_b(buf, off) uasm_i_beq(buf, 0, 0, off)
148#define uasm_i_beqz(buf, rs, off) uasm_i_beq(buf, rs, 0, off)
149#define uasm_i_beqzl(buf, rs, off) uasm_i_beql(buf, rs, 0, off)
150#define uasm_i_bnez(buf, rs, off) uasm_i_bne(buf, rs, 0, off)
151#define uasm_i_bnezl(buf, rs, off) uasm_i_bnel(buf, rs, 0, off)
152#define uasm_i_move(buf, a, b) UASM_i_ADDU(buf, a, 0, b)
153#define uasm_i_nop(buf) uasm_i_sll(buf, 0, 0, 0)
154#define uasm_i_ssnop(buf) uasm_i_sll(buf, 0, 0, 1)
155#define uasm_i_ehb(buf) uasm_i_sll(buf, 0, 0, 3)
156
157/* Handle relocations. */
158struct uasm_reloc {
159 u32 *addr;
160 unsigned int type;
161 int lab;
162};
163
164/* This is zero so we can use zeroed label arrays. */
165#define UASM_LABEL_INVALID 0
166
167void __init uasm_r_mips_pc16(struct uasm_reloc **rel, u32 *addr, int lid);
168void __init
169uasm_resolve_relocs(struct uasm_reloc *rel, struct uasm_label *lab);
170void __init
171uasm_move_relocs(struct uasm_reloc *rel, u32 *first, u32 *end, long off);
172void __init
173uasm_move_labels(struct uasm_label *lab, u32 *first, u32 *end, long off);
174void __init
175uasm_copy_handler(struct uasm_reloc *rel, struct uasm_label *lab, u32 *first,
176 u32 *end, u32 *target);
177int __init uasm_insn_has_bdelay(struct uasm_reloc *rel, u32 *addr);
178
179/* Convenience functions for labeled branches. */
180void __init
181uasm_il_bltz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
182void __init uasm_il_b(u32 **p, struct uasm_reloc **r, int lid);
183void __init
184uasm_il_beqz(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
185void __init
186uasm_il_beqzl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
187void __init
188uasm_il_bnez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
189void __init
190uasm_il_bgezl(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);
191void __init
192uasm_il_bgez(u32 **p, struct uasm_reloc **r, unsigned int reg, int lid);