arch/x86/include/asm/inst.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Generate .byte code for some instructions not supported by old
   4  * binutils.
   5  */
   6 #ifndef X86_ASM_INST_H
   7 #define X86_ASM_INST_H
   8
   9 #ifdef __ASSEMBLY__
  10
  11 #define REG_NUM_INVALID         100
  12
  13 #define REG_TYPE_R32            0
  14 #define REG_TYPE_R64            1
  15 #define REG_TYPE_XMM            2
  16 #define REG_TYPE_INVALID        100
  17
  18         .macro R32_NUM opd r32
  19         \opd = REG_NUM_INVALID
  20         .ifc \r32,%eax
  21         \opd = 0
  22         .endif
  23         .ifc \r32,%ecx
  24         \opd = 1
  25         .endif
  26         .ifc \r32,%edx
  27         \opd = 2
  28         .endif
  29         .ifc \r32,%ebx
  30         \opd = 3
  31         .endif
  32         .ifc \r32,%esp
  33         \opd = 4
  34         .endif
  35         .ifc \r32,%ebp
  36         \opd = 5
  37         .endif
  38         .ifc \r32,%esi
  39         \opd = 6
  40         .endif
  41         .ifc \r32,%edi
  42         \opd = 7
  43         .endif
  44 #ifdef CONFIG_X86_64
  45         .ifc \r32,%r8d
  46         \opd = 8
  47         .endif
  48         .ifc \r32,%r9d
  49         \opd = 9
  50         .endif
  51         .ifc \r32,%r10d
  52         \opd = 10
  53         .endif
  54         .ifc \r32,%r11d
  55         \opd = 11
  56         .endif
  57         .ifc \r32,%r12d
  58         \opd = 12
  59         .endif
  60         .ifc \r32,%r13d
  61         \opd = 13
  62         .endif
  63         .ifc \r32,%r14d
  64         \opd = 14
  65         .endif
  66         .ifc \r32,%r15d
  67         \opd = 15
  68         .endif
  69 #endif
  70         .endm
  71
  72         .macro R64_NUM opd r64
  73         \opd = REG_NUM_INVALID
  74 #ifdef CONFIG_X86_64
  75         .ifc \r64,%rax
  76         \opd = 0
  77         .endif
  78         .ifc \r64,%rcx
  79         \opd = 1
  80         .endif
  81         .ifc \r64,%rdx
  82         \opd = 2
  83         .endif
  84         .ifc \r64,%rbx
  85         \opd = 3
  86         .endif
  87         .ifc \r64,%rsp
  88         \opd = 4
  89         .endif
  90         .ifc \r64,%rbp
  91         \opd = 5
  92         .endif
  93         .ifc \r64,%rsi
  94         \opd = 6
  95         .endif
  96         .ifc \r64,%rdi
  97         \opd = 7
  98         .endif
  99         .ifc \r64,%r8
 100         \opd = 8
 101         .endif
 102         .ifc \r64,%r9
 103         \opd = 9
 104         .endif
 105         .ifc \r64,%r10
 106         \opd = 10
 107         .endif
 108         .ifc \r64,%r11
 109         \opd = 11
 110         .endif
 111         .ifc \r64,%r12
 112         \opd = 12
 113         .endif
 114         .ifc \r64,%r13
 115         \opd = 13
 116         .endif
 117         .ifc \r64,%r14
 118         \opd = 14
 119         .endif
 120         .ifc \r64,%r15
 121         \opd = 15
 122         .endif
 123 #endif
 124         .endm
 125
 126         .macro XMM_NUM opd xmm
 127         \opd = REG_NUM_INVALID
 128         .ifc \xmm,%xmm0
 129         \opd = 0
 130         .endif
 131         .ifc \xmm,%xmm1
 132         \opd = 1
 133         .endif
 134         .ifc \xmm,%xmm2
 135         \opd = 2
 136         .endif
 137         .ifc \xmm,%xmm3
 138         \opd = 3
 139         .endif
 140         .ifc \xmm,%xmm4
 141         \opd = 4
 142         .endif
 143         .ifc \xmm,%xmm5
 144         \opd = 5
 145         .endif
 146         .ifc \xmm,%xmm6
 147         \opd = 6
 148         .endif
 149         .ifc \xmm,%xmm7
 150         \opd = 7
 151         .endif
 152         .ifc \xmm,%xmm8
 153         \opd = 8
 154         .endif
 155         .ifc \xmm,%xmm9
 156         \opd = 9
 157         .endif
 158         .ifc \xmm,%xmm10
 159         \opd = 10
 160         .endif
 161         .ifc \xmm,%xmm11
 162         \opd = 11
 163         .endif
 164         .ifc \xmm,%xmm12
 165         \opd = 12
 166         .endif
 167         .ifc \xmm,%xmm13
 168         \opd = 13
 169         .endif
 170         .ifc \xmm,%xmm14
 171         \opd = 14
 172         .endif
 173         .ifc \xmm,%xmm15
 174         \opd = 15
 175         .endif
 176         .endm
 177
 178         .macro REG_TYPE type reg
 179         R32_NUM reg_type_r32 \reg
 180         R64_NUM reg_type_r64 \reg
 181         XMM_NUM reg_type_xmm \reg
 182         .if reg_type_r64 <> REG_NUM_INVALID
 183         \type = REG_TYPE_R64
 184         .elseif reg_type_r32 <> REG_NUM_INVALID
 185         \type = REG_TYPE_R32
 186         .elseif reg_type_xmm <> REG_NUM_INVALID
 187         \type = REG_TYPE_XMM
 188         .else
 189         \type = REG_TYPE_INVALID
 190         .endif
 191         .endm
 192
 193         .macro PFX_OPD_SIZE
 194         .byte 0x66
 195         .endm
 196
 197         .macro PFX_REX opd1 opd2 W=0
 198         .if ((\opd1 | \opd2) & 8) || \W
 199         .byte 0x40 | ((\opd1 & 8) >> 3) | ((\opd2 & 8) >> 1) | (\W << 3)
 200         .endif
 201         .endm
 202
 203         .macro MODRM mod opd1 opd2
 204         .byte \mod | (\opd1 & 7) | ((\opd2 & 7) << 3)
 205         .endm
 206
 207         .macro PSHUFB_XMM xmm1 xmm2
 208         XMM_NUM pshufb_opd1 \xmm1
 209         XMM_NUM pshufb_opd2 \xmm2
 210         PFX_OPD_SIZE
 211         PFX_REX pshufb_opd1 pshufb_opd2
 212         .byte 0x0f, 0x38, 0x00
 213         MODRM 0xc0 pshufb_opd1 pshufb_opd2
 214         .endm
 215
 216         .macro PCLMULQDQ imm8 xmm1 xmm2
 217         XMM_NUM clmul_opd1 \xmm1
 218         XMM_NUM clmul_opd2 \xmm2
 219         PFX_OPD_SIZE
 220         PFX_REX clmul_opd1 clmul_opd2
 221         .byte 0x0f, 0x3a, 0x44
 222         MODRM 0xc0 clmul_opd1 clmul_opd2
 223         .byte \imm8
 224         .endm
 225
 226         .macro PEXTRD imm8 xmm gpr
 227         R32_NUM extrd_opd1 \gpr
 228         XMM_NUM extrd_opd2 \xmm
 229         PFX_OPD_SIZE
 230         PFX_REX extrd_opd1 extrd_opd2
 231         .byte 0x0f, 0x3a, 0x16
 232         MODRM 0xc0 extrd_opd1 extrd_opd2
 233         .byte \imm8
 234         .endm
 235
 236         .macro AESKEYGENASSIST rcon xmm1 xmm2
 237         XMM_NUM aeskeygen_opd1 \xmm1
 238         XMM_NUM aeskeygen_opd2 \xmm2
 239         PFX_OPD_SIZE
 240         PFX_REX aeskeygen_opd1 aeskeygen_opd2
 241         .byte 0x0f, 0x3a, 0xdf
 242         MODRM 0xc0 aeskeygen_opd1 aeskeygen_opd2
 243         .byte \rcon
 244         .endm
 245
 246         .macro AESIMC xmm1 xmm2
 247         XMM_NUM aesimc_opd1 \xmm1
 248         XMM_NUM aesimc_opd2 \xmm2
 249         PFX_OPD_SIZE
 250         PFX_REX aesimc_opd1 aesimc_opd2
 251         .byte 0x0f, 0x38, 0xdb
 252         MODRM 0xc0 aesimc_opd1 aesimc_opd2
 253         .endm
 254
 255         .macro AESENC xmm1 xmm2
 256         XMM_NUM aesenc_opd1 \xmm1
 257         XMM_NUM aesenc_opd2 \xmm2
 258         PFX_OPD_SIZE
 259         PFX_REX aesenc_opd1 aesenc_opd2
 260         .byte 0x0f, 0x38, 0xdc
 261         MODRM 0xc0 aesenc_opd1 aesenc_opd2
 262         .endm
 263
 264         .macro AESENCLAST xmm1 xmm2
 265         XMM_NUM aesenclast_opd1 \xmm1
 266         XMM_NUM aesenclast_opd2 \xmm2
 267         PFX_OPD_SIZE
 268         PFX_REX aesenclast_opd1 aesenclast_opd2
 269         .byte 0x0f, 0x38, 0xdd
 270         MODRM 0xc0 aesenclast_opd1 aesenclast_opd2
 271         .endm
 272
 273         .macro AESDEC xmm1 xmm2
 274         XMM_NUM aesdec_opd1 \xmm1
 275         XMM_NUM aesdec_opd2 \xmm2
 276         PFX_OPD_SIZE
 277         PFX_REX aesdec_opd1 aesdec_opd2
 278         .byte 0x0f, 0x38, 0xde
 279         MODRM 0xc0 aesdec_opd1 aesdec_opd2
 280         .endm
 281
 282         .macro AESDECLAST xmm1 xmm2
 283         XMM_NUM aesdeclast_opd1 \xmm1
 284         XMM_NUM aesdeclast_opd2 \xmm2
 285         PFX_OPD_SIZE
 286         PFX_REX aesdeclast_opd1 aesdeclast_opd2
 287         .byte 0x0f, 0x38, 0xdf
 288         MODRM 0xc0 aesdeclast_opd1 aesdeclast_opd2
 289         .endm
 290
 291         .macro MOVQ_R64_XMM opd1 opd2
 292         REG_TYPE movq_r64_xmm_opd1_type \opd1
 293         .if movq_r64_xmm_opd1_type == REG_TYPE_XMM
 294         XMM_NUM movq_r64_xmm_opd1 \opd1
 295         R64_NUM movq_r64_xmm_opd2 \opd2
 296         .else
 297         R64_NUM movq_r64_xmm_opd1 \opd1
 298         XMM_NUM movq_r64_xmm_opd2 \opd2
 299         .endif
 300         PFX_OPD_SIZE
 301         PFX_REX movq_r64_xmm_opd1 movq_r64_xmm_opd2 1
 302         .if movq_r64_xmm_opd1_type == REG_TYPE_XMM
 303         .byte 0x0f, 0x7e
 304         .else
 305         .byte 0x0f, 0x6e
 306         .endif
 307         MODRM 0xc0 movq_r64_xmm_opd1 movq_r64_xmm_opd2
 308         .endm
 309 #endif
 310
 311 #endif