Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* entry.S: FR-V entry |
| 2 | * |
| 3 | * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved. |
| 4 | * Written by David Howells (dhowells@redhat.com) |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License |
| 8 | * as published by the Free Software Foundation; either version |
| 9 | * 2 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * |
| 12 | * Entry to the kernel is "interesting": |
| 13 | * (1) There are no stack pointers, not even for the kernel |
| 14 | * (2) General Registers should not be clobbered |
| 15 | * (3) There are no kernel-only data registers |
| 16 | * (4) Since all addressing modes are wrt to a General Register, no global |
| 17 | * variables can be reached |
| 18 | * |
| 19 | * We deal with this by declaring that we shall kill GR28 on entering the |
| 20 | * kernel from userspace |
| 21 | * |
| 22 | * However, since break interrupts can interrupt the CPU even when PSR.ET==0, |
| 23 | * they can't rely on GR28 to be anything useful, and so need to clobber a |
| 24 | * separate register (GR31). Break interrupts are managed in break.S |
| 25 | * |
| 26 | * GR29 _is_ saved, and holds the current task pointer globally |
| 27 | * |
| 28 | */ |
| 29 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | #include <linux/linkage.h> |
| 31 | #include <asm/thread_info.h> |
| 32 | #include <asm/setup.h> |
| 33 | #include <asm/segment.h> |
| 34 | #include <asm/ptrace.h> |
| 35 | #include <asm/errno.h> |
| 36 | #include <asm/cache.h> |
| 37 | #include <asm/spr-regs.h> |
| 38 | |
| 39 | #define nr_syscalls ((syscall_table_size)/4) |
| 40 | |
Denys Vlasenko | b6f4e45 | 2010-02-20 01:03:56 +0100 | [diff] [blame] | 41 | .section .text..entry |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | .balign 4 |
| 43 | |
| 44 | .macro LEDS val |
| 45 | # sethi.p %hi(0xe1200004),gr30 |
| 46 | # setlo %lo(0xe1200004),gr30 |
| 47 | # setlos #~\val,gr31 |
| 48 | # st gr31,@(gr30,gr0) |
| 49 | # sethi.p %hi(0xffc00100),gr30 |
| 50 | # setlo %lo(0xffc00100),gr30 |
| 51 | # sth gr0,@(gr30,gr0) |
| 52 | # membar |
| 53 | .endm |
| 54 | |
| 55 | .macro LEDS32 |
| 56 | # not gr31,gr31 |
| 57 | # sethi.p %hi(0xe1200004),gr30 |
| 58 | # setlo %lo(0xe1200004),gr30 |
| 59 | # st.p gr31,@(gr30,gr0) |
| 60 | # srli gr31,#16,gr31 |
| 61 | # sethi.p %hi(0xffc00100),gr30 |
| 62 | # setlo %lo(0xffc00100),gr30 |
| 63 | # sth gr31,@(gr30,gr0) |
| 64 | # membar |
| 65 | .endm |
| 66 | |
| 67 | ############################################################################### |
| 68 | # |
| 69 | # entry point for External interrupts received whilst executing userspace code |
| 70 | # |
| 71 | ############################################################################### |
| 72 | .globl __entry_uspace_external_interrupt |
| 73 | .type __entry_uspace_external_interrupt,@function |
| 74 | __entry_uspace_external_interrupt: |
| 75 | LEDS 0x6200 |
| 76 | sethi.p %hi(__kernel_frame0_ptr),gr28 |
| 77 | setlo %lo(__kernel_frame0_ptr),gr28 |
| 78 | ldi @(gr28,#0),gr28 |
| 79 | |
| 80 | # handle h/w single-step through exceptions |
| 81 | sti gr0,@(gr28,#REG__STATUS) |
| 82 | |
| 83 | .globl __entry_uspace_external_interrupt_reentry |
| 84 | __entry_uspace_external_interrupt_reentry: |
| 85 | LEDS 0x6201 |
| 86 | |
| 87 | setlos #REG__END,gr30 |
| 88 | dcpl gr28,gr30,#0 |
| 89 | |
| 90 | # finish building the exception frame |
| 91 | sti sp, @(gr28,#REG_SP) |
| 92 | stdi gr2, @(gr28,#REG_GR(2)) |
| 93 | stdi gr4, @(gr28,#REG_GR(4)) |
| 94 | stdi gr6, @(gr28,#REG_GR(6)) |
| 95 | stdi gr8, @(gr28,#REG_GR(8)) |
| 96 | stdi gr10,@(gr28,#REG_GR(10)) |
| 97 | stdi gr12,@(gr28,#REG_GR(12)) |
| 98 | stdi gr14,@(gr28,#REG_GR(14)) |
| 99 | stdi gr16,@(gr28,#REG_GR(16)) |
| 100 | stdi gr18,@(gr28,#REG_GR(18)) |
| 101 | stdi gr20,@(gr28,#REG_GR(20)) |
| 102 | stdi gr22,@(gr28,#REG_GR(22)) |
| 103 | stdi gr24,@(gr28,#REG_GR(24)) |
| 104 | stdi gr26,@(gr28,#REG_GR(26)) |
| 105 | sti gr0, @(gr28,#REG_GR(28)) |
| 106 | sti gr29,@(gr28,#REG_GR(29)) |
| 107 | stdi.p gr30,@(gr28,#REG_GR(30)) |
| 108 | |
| 109 | # set up the kernel stack pointer |
| 110 | ori gr28,0,sp |
| 111 | |
| 112 | movsg tbr ,gr20 |
| 113 | movsg psr ,gr22 |
| 114 | movsg pcsr,gr21 |
| 115 | movsg isr ,gr23 |
| 116 | movsg ccr ,gr24 |
| 117 | movsg cccr,gr25 |
| 118 | movsg lr ,gr26 |
| 119 | movsg lcr ,gr27 |
| 120 | |
| 121 | setlos.p #-1,gr4 |
| 122 | andi gr22,#PSR_PS,gr5 /* try to rebuild original PSR value */ |
| 123 | andi.p gr22,#~(PSR_PS|PSR_S),gr6 |
| 124 | slli gr5,#1,gr5 |
| 125 | or gr6,gr5,gr5 |
| 126 | andi gr5,#~PSR_ET,gr5 |
| 127 | |
| 128 | sti gr20,@(gr28,#REG_TBR) |
| 129 | sti gr21,@(gr28,#REG_PC) |
| 130 | sti gr5 ,@(gr28,#REG_PSR) |
| 131 | sti gr23,@(gr28,#REG_ISR) |
| 132 | stdi gr24,@(gr28,#REG_CCR) |
| 133 | stdi gr26,@(gr28,#REG_LR) |
| 134 | sti gr4 ,@(gr28,#REG_SYSCALLNO) |
| 135 | |
| 136 | movsg iacc0h,gr4 |
| 137 | movsg iacc0l,gr5 |
| 138 | stdi gr4,@(gr28,#REG_IACC0) |
| 139 | |
| 140 | movsg gner0,gr4 |
| 141 | movsg gner1,gr5 |
David Howells | 28baeba | 2006-02-14 13:53:20 -0800 | [diff] [blame] | 142 | stdi.p gr4,@(gr28,#REG_GNER0) |
| 143 | |
| 144 | # interrupts start off fully disabled in the interrupt handler |
| 145 | subcc gr0,gr0,gr0,icc2 /* set Z and clear C */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | |
| 147 | # set up kernel global registers |
| 148 | sethi.p %hi(__kernel_current_task),gr5 |
| 149 | setlo %lo(__kernel_current_task),gr5 |
| 150 | sethi.p %hi(_gp),gr16 |
| 151 | setlo %lo(_gp),gr16 |
| 152 | ldi @(gr5,#0),gr29 |
| 153 | ldi.p @(gr29,#4),gr15 ; __current_thread_info = current->thread_info |
| 154 | |
| 155 | # make sure we (the kernel) get div-zero and misalignment exceptions |
| 156 | setlos #ISR_EDE|ISR_DTT_DIVBYZERO|ISR_EMAM_EXCEPTION,gr5 |
| 157 | movgs gr5,isr |
| 158 | |
| 159 | # switch to the kernel trap table |
| 160 | sethi.p %hi(__entry_kerneltrap_table),gr6 |
| 161 | setlo %lo(__entry_kerneltrap_table),gr6 |
| 162 | movgs gr6,tbr |
| 163 | |
| 164 | # set the return address |
| 165 | sethi.p %hi(__entry_return_from_user_interrupt),gr4 |
| 166 | setlo %lo(__entry_return_from_user_interrupt),gr4 |
| 167 | movgs gr4,lr |
| 168 | |
| 169 | # raise the minimum interrupt priority to 15 (NMI only) and enable exceptions |
| 170 | movsg psr,gr4 |
| 171 | |
| 172 | ori gr4,#PSR_PIL_14,gr4 |
| 173 | movgs gr4,psr |
| 174 | ori gr4,#PSR_PIL_14|PSR_ET,gr4 |
| 175 | movgs gr4,psr |
| 176 | |
| 177 | LEDS 0x6202 |
| 178 | bra do_IRQ |
| 179 | |
| 180 | .size __entry_uspace_external_interrupt,.-__entry_uspace_external_interrupt |
| 181 | |
| 182 | ############################################################################### |
| 183 | # |
| 184 | # entry point for External interrupts received whilst executing kernel code |
| 185 | # - on arriving here, the following registers should already be set up: |
| 186 | # GR15 - current thread_info struct pointer |
| 187 | # GR16 - kernel GP-REL pointer |
| 188 | # GR29 - current task struct pointer |
| 189 | # TBR - kernel trap vector table |
| 190 | # ISR - kernel's preferred integer controls |
| 191 | # |
| 192 | ############################################################################### |
| 193 | .globl __entry_kernel_external_interrupt |
| 194 | .type __entry_kernel_external_interrupt,@function |
| 195 | __entry_kernel_external_interrupt: |
| 196 | LEDS 0x6210 |
David Howells | 28baeba | 2006-02-14 13:53:20 -0800 | [diff] [blame] | 197 | // sub sp,gr15,gr31 |
| 198 | // LEDS32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 199 | |
| 200 | # set up the stack pointer |
| 201 | or.p sp,gr0,gr30 |
| 202 | subi sp,#REG__END,sp |
| 203 | sti gr30,@(sp,#REG_SP) |
| 204 | |
| 205 | # handle h/w single-step through exceptions |
| 206 | sti gr0,@(sp,#REG__STATUS) |
| 207 | |
| 208 | .globl __entry_kernel_external_interrupt_reentry |
| 209 | __entry_kernel_external_interrupt_reentry: |
| 210 | LEDS 0x6211 |
| 211 | |
| 212 | # set up the exception frame |
| 213 | setlos #REG__END,gr30 |
| 214 | dcpl sp,gr30,#0 |
| 215 | |
| 216 | sti.p gr28,@(sp,#REG_GR(28)) |
| 217 | ori sp,0,gr28 |
| 218 | |
| 219 | # finish building the exception frame |
| 220 | stdi gr2,@(gr28,#REG_GR(2)) |
| 221 | stdi gr4,@(gr28,#REG_GR(4)) |
| 222 | stdi gr6,@(gr28,#REG_GR(6)) |
| 223 | stdi gr8,@(gr28,#REG_GR(8)) |
| 224 | stdi gr10,@(gr28,#REG_GR(10)) |
| 225 | stdi gr12,@(gr28,#REG_GR(12)) |
| 226 | stdi gr14,@(gr28,#REG_GR(14)) |
| 227 | stdi gr16,@(gr28,#REG_GR(16)) |
| 228 | stdi gr18,@(gr28,#REG_GR(18)) |
| 229 | stdi gr20,@(gr28,#REG_GR(20)) |
| 230 | stdi gr22,@(gr28,#REG_GR(22)) |
| 231 | stdi gr24,@(gr28,#REG_GR(24)) |
| 232 | stdi gr26,@(gr28,#REG_GR(26)) |
| 233 | sti gr29,@(gr28,#REG_GR(29)) |
David Howells | 28baeba | 2006-02-14 13:53:20 -0800 | [diff] [blame] | 234 | stdi.p gr30,@(gr28,#REG_GR(30)) |
| 235 | |
| 236 | # note virtual interrupts will be fully enabled upon return |
| 237 | subicc gr0,#1,gr0,icc2 /* clear Z, set C */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | |
| 239 | movsg tbr ,gr20 |
| 240 | movsg psr ,gr22 |
| 241 | movsg pcsr,gr21 |
| 242 | movsg isr ,gr23 |
| 243 | movsg ccr ,gr24 |
| 244 | movsg cccr,gr25 |
| 245 | movsg lr ,gr26 |
| 246 | movsg lcr ,gr27 |
| 247 | |
| 248 | setlos.p #-1,gr4 |
| 249 | andi gr22,#PSR_PS,gr5 /* try to rebuild original PSR value */ |
| 250 | andi.p gr22,#~(PSR_PS|PSR_S),gr6 |
| 251 | slli gr5,#1,gr5 |
| 252 | or gr6,gr5,gr5 |
| 253 | andi.p gr5,#~PSR_ET,gr5 |
| 254 | |
| 255 | # set CCCR.CC3 to Undefined to abort atomic-modify completion inside the kernel |
Adrian Bunk | 0868ff7 | 2008-02-03 15:54:28 +0200 | [diff] [blame] | 256 | # - for an explanation of how it works, see: Documentation/frv/atomic-ops.txt |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 257 | andi gr25,#~0xc0,gr25 |
| 258 | |
| 259 | sti gr20,@(gr28,#REG_TBR) |
| 260 | sti gr21,@(gr28,#REG_PC) |
| 261 | sti gr5 ,@(gr28,#REG_PSR) |
| 262 | sti gr23,@(gr28,#REG_ISR) |
| 263 | stdi gr24,@(gr28,#REG_CCR) |
| 264 | stdi gr26,@(gr28,#REG_LR) |
| 265 | sti gr4 ,@(gr28,#REG_SYSCALLNO) |
| 266 | |
| 267 | movsg iacc0h,gr4 |
| 268 | movsg iacc0l,gr5 |
| 269 | stdi gr4,@(gr28,#REG_IACC0) |
| 270 | |
| 271 | movsg gner0,gr4 |
| 272 | movsg gner1,gr5 |
David Howells | 28baeba | 2006-02-14 13:53:20 -0800 | [diff] [blame] | 273 | stdi.p gr4,@(gr28,#REG_GNER0) |
| 274 | |
| 275 | # interrupts start off fully disabled in the interrupt handler |
| 276 | subcc gr0,gr0,gr0,icc2 /* set Z and clear C */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 277 | |
| 278 | # set the return address |
| 279 | sethi.p %hi(__entry_return_from_kernel_interrupt),gr4 |
| 280 | setlo %lo(__entry_return_from_kernel_interrupt),gr4 |
| 281 | movgs gr4,lr |
| 282 | |
| 283 | # clear power-saving mode flags |
| 284 | movsg hsr0,gr4 |
| 285 | andi gr4,#~HSR0_PDM,gr4 |
| 286 | movgs gr4,hsr0 |
| 287 | |
| 288 | # raise the minimum interrupt priority to 15 (NMI only) and enable exceptions |
| 289 | movsg psr,gr4 |
| 290 | ori gr4,#PSR_PIL_14,gr4 |
| 291 | movgs gr4,psr |
| 292 | ori gr4,#PSR_ET,gr4 |
| 293 | movgs gr4,psr |
| 294 | |
| 295 | LEDS 0x6212 |
| 296 | bra do_IRQ |
| 297 | |
| 298 | .size __entry_kernel_external_interrupt,.-__entry_kernel_external_interrupt |
| 299 | |
David Howells | 28baeba | 2006-02-14 13:53:20 -0800 | [diff] [blame] | 300 | ############################################################################### |
| 301 | # |
| 302 | # deal with interrupts that were actually virtually disabled |
| 303 | # - we need to really disable them, flag the fact and return immediately |
| 304 | # - if you change this, you must alter break.S also |
| 305 | # |
| 306 | ############################################################################### |
| 307 | .balign L1_CACHE_BYTES |
| 308 | .globl __entry_kernel_external_interrupt_virtually_disabled |
| 309 | .type __entry_kernel_external_interrupt_virtually_disabled,@function |
| 310 | __entry_kernel_external_interrupt_virtually_disabled: |
| 311 | movsg psr,gr30 |
| 312 | andi gr30,#~PSR_PIL,gr30 |
| 313 | ori gr30,#PSR_PIL_14,gr30 ; debugging interrupts only |
| 314 | movgs gr30,psr |
| 315 | subcc gr0,gr0,gr0,icc2 ; leave Z set, clear C |
| 316 | rett #0 |
| 317 | |
| 318 | .size __entry_kernel_external_interrupt_virtually_disabled,.-__entry_kernel_external_interrupt_virtually_disabled |
| 319 | |
| 320 | ############################################################################### |
| 321 | # |
| 322 | # deal with re-enablement of interrupts that were pending when virtually re-enabled |
| 323 | # - set ICC2.C, re-enable the real interrupts and return |
| 324 | # - we can clear ICC2.Z because we shouldn't be here if it's not 0 [due to TIHI] |
| 325 | # - if you change this, you must alter break.S also |
| 326 | # |
| 327 | ############################################################################### |
| 328 | .balign L1_CACHE_BYTES |
| 329 | .globl __entry_kernel_external_interrupt_virtual_reenable |
| 330 | .type __entry_kernel_external_interrupt_virtual_reenable,@function |
| 331 | __entry_kernel_external_interrupt_virtual_reenable: |
| 332 | movsg psr,gr30 |
| 333 | andi gr30,#~PSR_PIL,gr30 ; re-enable interrupts |
| 334 | movgs gr30,psr |
| 335 | subicc gr0,#1,gr0,icc2 ; clear Z, set C |
| 336 | rett #0 |
| 337 | |
| 338 | .size __entry_kernel_external_interrupt_virtual_reenable,.-__entry_kernel_external_interrupt_virtual_reenable |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | |
| 340 | ############################################################################### |
| 341 | # |
| 342 | # entry point for Software and Progam interrupts generated whilst executing userspace code |
| 343 | # |
| 344 | ############################################################################### |
| 345 | .globl __entry_uspace_softprog_interrupt |
| 346 | .type __entry_uspace_softprog_interrupt,@function |
| 347 | .globl __entry_uspace_handle_mmu_fault |
| 348 | __entry_uspace_softprog_interrupt: |
| 349 | LEDS 0x6000 |
| 350 | #ifdef CONFIG_MMU |
| 351 | movsg ear0,gr28 |
| 352 | __entry_uspace_handle_mmu_fault: |
| 353 | movgs gr28,scr2 |
| 354 | #endif |
| 355 | sethi.p %hi(__kernel_frame0_ptr),gr28 |
| 356 | setlo %lo(__kernel_frame0_ptr),gr28 |
| 357 | ldi @(gr28,#0),gr28 |
| 358 | |
| 359 | # handle h/w single-step through exceptions |
| 360 | sti gr0,@(gr28,#REG__STATUS) |
| 361 | |
| 362 | .globl __entry_uspace_softprog_interrupt_reentry |
| 363 | __entry_uspace_softprog_interrupt_reentry: |
| 364 | LEDS 0x6001 |
| 365 | |
| 366 | setlos #REG__END,gr30 |
| 367 | dcpl gr28,gr30,#0 |
| 368 | |
| 369 | # set up the kernel stack pointer |
| 370 | sti.p sp,@(gr28,#REG_SP) |
| 371 | ori gr28,0,sp |
| 372 | sti gr0,@(gr28,#REG_GR(28)) |
| 373 | |
| 374 | stdi gr20,@(gr28,#REG_GR(20)) |
| 375 | stdi gr22,@(gr28,#REG_GR(22)) |
| 376 | |
| 377 | movsg tbr,gr20 |
| 378 | movsg pcsr,gr21 |
| 379 | movsg psr,gr22 |
| 380 | |
| 381 | sethi.p %hi(__entry_return_from_user_exception),gr23 |
| 382 | setlo %lo(__entry_return_from_user_exception),gr23 |
David Howells | 28baeba | 2006-02-14 13:53:20 -0800 | [diff] [blame] | 383 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 384 | bra __entry_common |
| 385 | |
| 386 | .size __entry_uspace_softprog_interrupt,.-__entry_uspace_softprog_interrupt |
| 387 | |
| 388 | # single-stepping was disabled on entry to a TLB handler that then faulted |
| 389 | #ifdef CONFIG_MMU |
| 390 | .globl __entry_uspace_handle_mmu_fault_sstep |
| 391 | __entry_uspace_handle_mmu_fault_sstep: |
| 392 | movgs gr28,scr2 |
| 393 | sethi.p %hi(__kernel_frame0_ptr),gr28 |
| 394 | setlo %lo(__kernel_frame0_ptr),gr28 |
| 395 | ldi @(gr28,#0),gr28 |
| 396 | |
| 397 | # flag single-step re-enablement |
| 398 | sti gr0,@(gr28,#REG__STATUS) |
| 399 | bra __entry_uspace_softprog_interrupt_reentry |
| 400 | #endif |
| 401 | |
| 402 | |
| 403 | ############################################################################### |
| 404 | # |
| 405 | # entry point for Software and Progam interrupts generated whilst executing kernel code |
| 406 | # |
| 407 | ############################################################################### |
| 408 | .globl __entry_kernel_softprog_interrupt |
| 409 | .type __entry_kernel_softprog_interrupt,@function |
| 410 | __entry_kernel_softprog_interrupt: |
| 411 | LEDS 0x6004 |
| 412 | |
| 413 | #ifdef CONFIG_MMU |
| 414 | movsg ear0,gr30 |
| 415 | movgs gr30,scr2 |
| 416 | #endif |
| 417 | |
| 418 | .globl __entry_kernel_handle_mmu_fault |
| 419 | __entry_kernel_handle_mmu_fault: |
| 420 | # set up the stack pointer |
| 421 | subi sp,#REG__END,sp |
| 422 | sti sp,@(sp,#REG_SP) |
| 423 | sti sp,@(sp,#REG_SP-4) |
| 424 | andi sp,#~7,sp |
| 425 | |
| 426 | # handle h/w single-step through exceptions |
| 427 | sti gr0,@(sp,#REG__STATUS) |
| 428 | |
| 429 | .globl __entry_kernel_softprog_interrupt_reentry |
| 430 | __entry_kernel_softprog_interrupt_reentry: |
| 431 | LEDS 0x6005 |
| 432 | |
| 433 | setlos #REG__END,gr30 |
| 434 | dcpl sp,gr30,#0 |
| 435 | |
| 436 | # set up the exception frame |
| 437 | sti.p gr28,@(sp,#REG_GR(28)) |
| 438 | ori sp,0,gr28 |
| 439 | |
| 440 | stdi gr20,@(gr28,#REG_GR(20)) |
| 441 | stdi gr22,@(gr28,#REG_GR(22)) |
| 442 | |
| 443 | ldi @(sp,#REG_SP),gr22 /* reconstruct the old SP */ |
| 444 | addi gr22,#REG__END,gr22 |
| 445 | sti gr22,@(sp,#REG_SP) |
| 446 | |
| 447 | # set CCCR.CC3 to Undefined to abort atomic-modify completion inside the kernel |
Adrian Bunk | 0868ff7 | 2008-02-03 15:54:28 +0200 | [diff] [blame] | 448 | # - for an explanation of how it works, see: Documentation/frv/atomic-ops.txt |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | movsg cccr,gr20 |
| 450 | andi gr20,#~0xc0,gr20 |
| 451 | movgs gr20,cccr |
| 452 | |
| 453 | movsg tbr,gr20 |
| 454 | movsg pcsr,gr21 |
| 455 | movsg psr,gr22 |
| 456 | |
| 457 | sethi.p %hi(__entry_return_from_kernel_exception),gr23 |
| 458 | setlo %lo(__entry_return_from_kernel_exception),gr23 |
| 459 | bra __entry_common |
| 460 | |
| 461 | .size __entry_kernel_softprog_interrupt,.-__entry_kernel_softprog_interrupt |
| 462 | |
| 463 | # single-stepping was disabled on entry to a TLB handler that then faulted |
| 464 | #ifdef CONFIG_MMU |
| 465 | .globl __entry_kernel_handle_mmu_fault_sstep |
| 466 | __entry_kernel_handle_mmu_fault_sstep: |
| 467 | # set up the stack pointer |
| 468 | subi sp,#REG__END,sp |
| 469 | sti sp,@(sp,#REG_SP) |
| 470 | sti sp,@(sp,#REG_SP-4) |
| 471 | andi sp,#~7,sp |
| 472 | |
| 473 | # flag single-step re-enablement |
| 474 | sethi #REG__STATUS_STEP,gr30 |
| 475 | sti gr30,@(sp,#REG__STATUS) |
| 476 | bra __entry_kernel_softprog_interrupt_reentry |
| 477 | #endif |
| 478 | |
| 479 | |
| 480 | ############################################################################### |
| 481 | # |
| 482 | # the rest of the kernel entry point code |
| 483 | # - on arriving here, the following registers should be set up: |
| 484 | # GR1 - kernel stack pointer |
| 485 | # GR7 - syscall number (trap 0 only) |
| 486 | # GR8-13 - syscall args (trap 0 only) |
| 487 | # GR20 - saved TBR |
| 488 | # GR21 - saved PC |
| 489 | # GR22 - saved PSR |
| 490 | # GR23 - return handler address |
| 491 | # GR28 - exception frame on stack |
| 492 | # SCR2 - saved EAR0 where applicable (clobbered by ICI & ICEF insns on FR451) |
| 493 | # PSR - PSR.S 1, PSR.ET 0 |
| 494 | # |
| 495 | ############################################################################### |
| 496 | .globl __entry_common |
| 497 | .type __entry_common,@function |
| 498 | __entry_common: |
| 499 | LEDS 0x6008 |
| 500 | |
| 501 | # finish building the exception frame |
| 502 | stdi gr2,@(gr28,#REG_GR(2)) |
| 503 | stdi gr4,@(gr28,#REG_GR(4)) |
| 504 | stdi gr6,@(gr28,#REG_GR(6)) |
| 505 | stdi gr8,@(gr28,#REG_GR(8)) |
| 506 | stdi gr10,@(gr28,#REG_GR(10)) |
| 507 | stdi gr12,@(gr28,#REG_GR(12)) |
| 508 | stdi gr14,@(gr28,#REG_GR(14)) |
| 509 | stdi gr16,@(gr28,#REG_GR(16)) |
| 510 | stdi gr18,@(gr28,#REG_GR(18)) |
| 511 | stdi gr24,@(gr28,#REG_GR(24)) |
| 512 | stdi gr26,@(gr28,#REG_GR(26)) |
| 513 | sti gr29,@(gr28,#REG_GR(29)) |
| 514 | stdi gr30,@(gr28,#REG_GR(30)) |
| 515 | |
| 516 | movsg lcr ,gr27 |
| 517 | movsg lr ,gr26 |
| 518 | movgs gr23,lr |
| 519 | movsg cccr,gr25 |
| 520 | movsg ccr ,gr24 |
| 521 | movsg isr ,gr23 |
| 522 | |
| 523 | setlos.p #-1,gr4 |
| 524 | andi gr22,#PSR_PS,gr5 /* try to rebuild original PSR value */ |
| 525 | andi.p gr22,#~(PSR_PS|PSR_S),gr6 |
| 526 | slli gr5,#1,gr5 |
| 527 | or gr6,gr5,gr5 |
| 528 | andi gr5,#~PSR_ET,gr5 |
| 529 | |
| 530 | sti gr20,@(gr28,#REG_TBR) |
| 531 | sti gr21,@(gr28,#REG_PC) |
| 532 | sti gr5 ,@(gr28,#REG_PSR) |
| 533 | sti gr23,@(gr28,#REG_ISR) |
| 534 | stdi gr24,@(gr28,#REG_CCR) |
| 535 | stdi gr26,@(gr28,#REG_LR) |
| 536 | sti gr4 ,@(gr28,#REG_SYSCALLNO) |
| 537 | |
| 538 | movsg iacc0h,gr4 |
| 539 | movsg iacc0l,gr5 |
| 540 | stdi gr4,@(gr28,#REG_IACC0) |
| 541 | |
| 542 | movsg gner0,gr4 |
| 543 | movsg gner1,gr5 |
David Howells | 28baeba | 2006-02-14 13:53:20 -0800 | [diff] [blame] | 544 | stdi.p gr4,@(gr28,#REG_GNER0) |
| 545 | |
| 546 | # set up virtual interrupt disablement |
| 547 | subicc gr0,#1,gr0,icc2 /* clear Z flag, set C flag */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 548 | |
| 549 | # set up kernel global registers |
| 550 | sethi.p %hi(__kernel_current_task),gr5 |
| 551 | setlo %lo(__kernel_current_task),gr5 |
| 552 | sethi.p %hi(_gp),gr16 |
| 553 | setlo %lo(_gp),gr16 |
| 554 | ldi @(gr5,#0),gr29 |
| 555 | ldi @(gr29,#4),gr15 ; __current_thread_info = current->thread_info |
| 556 | |
| 557 | # switch to the kernel trap table |
| 558 | sethi.p %hi(__entry_kerneltrap_table),gr6 |
| 559 | setlo %lo(__entry_kerneltrap_table),gr6 |
| 560 | movgs gr6,tbr |
| 561 | |
| 562 | # make sure we (the kernel) get div-zero and misalignment exceptions |
| 563 | setlos #ISR_EDE|ISR_DTT_DIVBYZERO|ISR_EMAM_EXCEPTION,gr5 |
| 564 | movgs gr5,isr |
| 565 | |
| 566 | # clear power-saving mode flags |
| 567 | movsg hsr0,gr4 |
| 568 | andi gr4,#~HSR0_PDM,gr4 |
| 569 | movgs gr4,hsr0 |
| 570 | |
| 571 | # multiplex again using old TBR as a guide |
| 572 | setlos.p #TBR_TT,gr3 |
| 573 | sethi %hi(__entry_vector_table),gr6 |
| 574 | and.p gr20,gr3,gr5 |
| 575 | setlo %lo(__entry_vector_table),gr6 |
| 576 | srli gr5,#2,gr5 |
| 577 | ld @(gr5,gr6),gr5 |
| 578 | |
| 579 | LEDS 0x6009 |
| 580 | jmpl @(gr5,gr0) |
| 581 | |
| 582 | |
| 583 | .size __entry_common,.-__entry_common |
| 584 | |
| 585 | ############################################################################### |
| 586 | # |
| 587 | # handle instruction MMU fault |
| 588 | # |
| 589 | ############################################################################### |
| 590 | #ifdef CONFIG_MMU |
| 591 | .globl __entry_insn_mmu_fault |
| 592 | __entry_insn_mmu_fault: |
| 593 | LEDS 0x6010 |
| 594 | setlos #0,gr8 |
| 595 | movsg esr0,gr9 |
| 596 | movsg scr2,gr10 |
| 597 | |
| 598 | # now that we've accessed the exception regs, we can enable exceptions |
| 599 | movsg psr,gr4 |
| 600 | ori gr4,#PSR_ET,gr4 |
| 601 | movgs gr4,psr |
| 602 | |
| 603 | sethi.p %hi(do_page_fault),gr5 |
| 604 | setlo %lo(do_page_fault),gr5 |
| 605 | jmpl @(gr5,gr0) ; call do_page_fault(0,esr0,ear0) |
| 606 | #endif |
| 607 | |
| 608 | |
| 609 | ############################################################################### |
| 610 | # |
| 611 | # handle instruction access error |
| 612 | # |
| 613 | ############################################################################### |
| 614 | .globl __entry_insn_access_error |
| 615 | __entry_insn_access_error: |
| 616 | LEDS 0x6011 |
| 617 | sethi.p %hi(insn_access_error),gr5 |
| 618 | setlo %lo(insn_access_error),gr5 |
| 619 | movsg esfr1,gr8 |
| 620 | movsg epcr0,gr9 |
| 621 | movsg esr0,gr10 |
| 622 | |
| 623 | # now that we've accessed the exception regs, we can enable exceptions |
| 624 | movsg psr,gr4 |
| 625 | ori gr4,#PSR_ET,gr4 |
| 626 | movgs gr4,psr |
| 627 | jmpl @(gr5,gr0) ; call insn_access_error(esfr1,epcr0,esr0) |
| 628 | |
| 629 | ############################################################################### |
| 630 | # |
| 631 | # handle various instructions of dubious legality |
| 632 | # |
| 633 | ############################################################################### |
| 634 | .globl __entry_unsupported_trap |
| 635 | .globl __entry_illegal_instruction |
| 636 | .globl __entry_privileged_instruction |
| 637 | .globl __entry_debug_exception |
| 638 | __entry_unsupported_trap: |
| 639 | subi gr21,#4,gr21 |
| 640 | sti gr21,@(gr28,#REG_PC) |
| 641 | __entry_illegal_instruction: |
| 642 | __entry_privileged_instruction: |
| 643 | __entry_debug_exception: |
| 644 | LEDS 0x6012 |
| 645 | sethi.p %hi(illegal_instruction),gr5 |
| 646 | setlo %lo(illegal_instruction),gr5 |
| 647 | movsg esfr1,gr8 |
| 648 | movsg epcr0,gr9 |
| 649 | movsg esr0,gr10 |
| 650 | |
| 651 | # now that we've accessed the exception regs, we can enable exceptions |
| 652 | movsg psr,gr4 |
| 653 | ori gr4,#PSR_ET,gr4 |
| 654 | movgs gr4,psr |
| 655 | jmpl @(gr5,gr0) ; call ill_insn(esfr1,epcr0,esr0) |
| 656 | |
| 657 | ############################################################################### |
| 658 | # |
David Howells | e31c243 | 2008-04-10 16:10:55 +0100 | [diff] [blame] | 659 | # handle atomic operation emulation for userspace |
| 660 | # |
| 661 | ############################################################################### |
| 662 | .globl __entry_atomic_op |
| 663 | __entry_atomic_op: |
| 664 | LEDS 0x6012 |
| 665 | sethi.p %hi(atomic_operation),gr5 |
| 666 | setlo %lo(atomic_operation),gr5 |
| 667 | movsg esfr1,gr8 |
| 668 | movsg epcr0,gr9 |
| 669 | movsg esr0,gr10 |
| 670 | |
| 671 | # now that we've accessed the exception regs, we can enable exceptions |
| 672 | movsg psr,gr4 |
| 673 | ori gr4,#PSR_ET,gr4 |
| 674 | movgs gr4,psr |
| 675 | jmpl @(gr5,gr0) ; call atomic_operation(esfr1,epcr0,esr0) |
| 676 | |
| 677 | ############################################################################### |
| 678 | # |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 679 | # handle media exception |
| 680 | # |
| 681 | ############################################################################### |
| 682 | .globl __entry_media_exception |
| 683 | __entry_media_exception: |
| 684 | LEDS 0x6013 |
| 685 | sethi.p %hi(media_exception),gr5 |
| 686 | setlo %lo(media_exception),gr5 |
| 687 | movsg msr0,gr8 |
| 688 | movsg msr1,gr9 |
| 689 | |
| 690 | # now that we've accessed the exception regs, we can enable exceptions |
| 691 | movsg psr,gr4 |
| 692 | ori gr4,#PSR_ET,gr4 |
| 693 | movgs gr4,psr |
| 694 | jmpl @(gr5,gr0) ; call media_excep(msr0,msr1) |
| 695 | |
| 696 | ############################################################################### |
| 697 | # |
| 698 | # handle data MMU fault |
| 699 | # handle data DAT fault (write-protect exception) |
| 700 | # |
| 701 | ############################################################################### |
| 702 | #ifdef CONFIG_MMU |
| 703 | .globl __entry_data_mmu_fault |
| 704 | __entry_data_mmu_fault: |
| 705 | .globl __entry_data_dat_fault |
| 706 | __entry_data_dat_fault: |
| 707 | LEDS 0x6014 |
| 708 | setlos #1,gr8 |
| 709 | movsg esr0,gr9 |
| 710 | movsg scr2,gr10 ; saved EAR0 |
| 711 | |
| 712 | # now that we've accessed the exception regs, we can enable exceptions |
| 713 | movsg psr,gr4 |
| 714 | ori gr4,#PSR_ET,gr4 |
| 715 | movgs gr4,psr |
| 716 | |
| 717 | sethi.p %hi(do_page_fault),gr5 |
| 718 | setlo %lo(do_page_fault),gr5 |
| 719 | jmpl @(gr5,gr0) ; call do_page_fault(1,esr0,ear0) |
| 720 | #endif |
| 721 | |
| 722 | ############################################################################### |
| 723 | # |
| 724 | # handle data and instruction access exceptions |
| 725 | # |
| 726 | ############################################################################### |
| 727 | .globl __entry_insn_access_exception |
| 728 | .globl __entry_data_access_exception |
| 729 | __entry_insn_access_exception: |
| 730 | __entry_data_access_exception: |
| 731 | LEDS 0x6016 |
| 732 | sethi.p %hi(memory_access_exception),gr5 |
| 733 | setlo %lo(memory_access_exception),gr5 |
| 734 | movsg esr0,gr8 |
| 735 | movsg scr2,gr9 ; saved EAR0 |
| 736 | movsg epcr0,gr10 |
| 737 | |
| 738 | # now that we've accessed the exception regs, we can enable exceptions |
| 739 | movsg psr,gr4 |
| 740 | ori gr4,#PSR_ET,gr4 |
| 741 | movgs gr4,psr |
| 742 | jmpl @(gr5,gr0) ; call memory_access_error(esr0,ear0,epcr0) |
| 743 | |
| 744 | ############################################################################### |
| 745 | # |
| 746 | # handle data access error |
| 747 | # |
| 748 | ############################################################################### |
| 749 | .globl __entry_data_access_error |
| 750 | __entry_data_access_error: |
| 751 | LEDS 0x6016 |
| 752 | sethi.p %hi(data_access_error),gr5 |
| 753 | setlo %lo(data_access_error),gr5 |
| 754 | movsg esfr1,gr8 |
| 755 | movsg esr15,gr9 |
| 756 | movsg ear15,gr10 |
| 757 | |
| 758 | # now that we've accessed the exception regs, we can enable exceptions |
| 759 | movsg psr,gr4 |
| 760 | ori gr4,#PSR_ET,gr4 |
| 761 | movgs gr4,psr |
| 762 | jmpl @(gr5,gr0) ; call data_access_error(esfr1,esr15,ear15) |
| 763 | |
| 764 | ############################################################################### |
| 765 | # |
| 766 | # handle data store error |
| 767 | # |
| 768 | ############################################################################### |
| 769 | .globl __entry_data_store_error |
| 770 | __entry_data_store_error: |
| 771 | LEDS 0x6017 |
| 772 | sethi.p %hi(data_store_error),gr5 |
| 773 | setlo %lo(data_store_error),gr5 |
| 774 | movsg esfr1,gr8 |
| 775 | movsg esr14,gr9 |
| 776 | |
| 777 | # now that we've accessed the exception regs, we can enable exceptions |
| 778 | movsg psr,gr4 |
| 779 | ori gr4,#PSR_ET,gr4 |
| 780 | movgs gr4,psr |
| 781 | jmpl @(gr5,gr0) ; call data_store_error(esfr1,esr14) |
| 782 | |
| 783 | ############################################################################### |
| 784 | # |
| 785 | # handle division exception |
| 786 | # |
| 787 | ############################################################################### |
| 788 | .globl __entry_division_exception |
| 789 | __entry_division_exception: |
| 790 | LEDS 0x6018 |
| 791 | sethi.p %hi(division_exception),gr5 |
| 792 | setlo %lo(division_exception),gr5 |
| 793 | movsg esfr1,gr8 |
| 794 | movsg esr0,gr9 |
| 795 | movsg isr,gr10 |
| 796 | |
| 797 | # now that we've accessed the exception regs, we can enable exceptions |
| 798 | movsg psr,gr4 |
| 799 | ori gr4,#PSR_ET,gr4 |
| 800 | movgs gr4,psr |
| 801 | jmpl @(gr5,gr0) ; call div_excep(esfr1,esr0,isr) |
| 802 | |
| 803 | ############################################################################### |
| 804 | # |
| 805 | # handle compound exception |
| 806 | # |
| 807 | ############################################################################### |
| 808 | .globl __entry_compound_exception |
| 809 | __entry_compound_exception: |
| 810 | LEDS 0x6019 |
| 811 | sethi.p %hi(compound_exception),gr5 |
| 812 | setlo %lo(compound_exception),gr5 |
| 813 | movsg esfr1,gr8 |
| 814 | movsg esr0,gr9 |
| 815 | movsg esr14,gr10 |
| 816 | movsg esr15,gr11 |
| 817 | movsg msr0,gr12 |
| 818 | movsg msr1,gr13 |
| 819 | |
| 820 | # now that we've accessed the exception regs, we can enable exceptions |
| 821 | movsg psr,gr4 |
| 822 | ori gr4,#PSR_ET,gr4 |
| 823 | movgs gr4,psr |
| 824 | jmpl @(gr5,gr0) ; call comp_excep(esfr1,esr0,esr14,esr15,msr0,msr1) |
| 825 | |
| 826 | ############################################################################### |
| 827 | # |
| 828 | # handle interrupts and NMIs |
| 829 | # |
| 830 | ############################################################################### |
| 831 | .globl __entry_do_IRQ |
| 832 | __entry_do_IRQ: |
| 833 | LEDS 0x6020 |
| 834 | |
| 835 | # we can enable exceptions |
| 836 | movsg psr,gr4 |
| 837 | ori gr4,#PSR_ET,gr4 |
| 838 | movgs gr4,psr |
| 839 | bra do_IRQ |
| 840 | |
| 841 | .globl __entry_do_NMI |
| 842 | __entry_do_NMI: |
| 843 | LEDS 0x6021 |
| 844 | |
| 845 | # we can enable exceptions |
| 846 | movsg psr,gr4 |
| 847 | ori gr4,#PSR_ET,gr4 |
| 848 | movgs gr4,psr |
| 849 | bra do_NMI |
| 850 | |
| 851 | ############################################################################### |
| 852 | # |
| 853 | # the return path for a newly forked child process |
| 854 | # - __switch_to() saved the old current pointer in GR8 for us |
| 855 | # |
| 856 | ############################################################################### |
| 857 | .globl ret_from_fork |
| 858 | ret_from_fork: |
| 859 | LEDS 0x6100 |
| 860 | call schedule_tail |
| 861 | |
| 862 | # fork & co. return 0 to child |
| 863 | setlos.p #0,gr8 |
| 864 | bra __syscall_exit |
| 865 | |
Al Viro | 02ce496 | 2012-09-18 22:18:51 -0400 | [diff] [blame] | 866 | .globl ret_from_kernel_thread |
| 867 | ret_from_kernel_thread: |
| 868 | lddi.p @(gr28,#REG_GR(8)),gr20 |
| 869 | call schedule_tail |
David Howells | 819e1c5 | 2012-10-16 00:10:13 +0100 | [diff] [blame] | 870 | calll.p @(gr21,gr0) |
| 871 | or gr20,gr20,gr8 |
Al Viro | 019f96a | 2012-09-18 22:33:44 -0400 | [diff] [blame] | 872 | bra __syscall_exit |
| 873 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 874 | ################################################################################################### |
| 875 | # |
| 876 | # Return to user mode is not as complex as all this looks, |
| 877 | # but we want the default path for a system call return to |
| 878 | # go as quickly as possible which is why some of this is |
| 879 | # less clear than it otherwise should be. |
| 880 | # |
| 881 | ################################################################################################### |
| 882 | .balign L1_CACHE_BYTES |
| 883 | .globl system_call |
| 884 | system_call: |
| 885 | LEDS 0x6101 |
| 886 | movsg psr,gr4 ; enable exceptions |
| 887 | ori gr4,#PSR_ET,gr4 |
| 888 | movgs gr4,psr |
| 889 | |
| 890 | sti gr7,@(gr28,#REG_SYSCALLNO) |
| 891 | sti.p gr8,@(gr28,#REG_ORIG_GR8) |
| 892 | |
| 893 | subicc gr7,#nr_syscalls,gr0,icc0 |
| 894 | bnc icc0,#0,__syscall_badsys |
| 895 | |
| 896 | ldi @(gr15,#TI_FLAGS),gr4 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 897 | andicc gr4,#_TIF_SYSCALL_TRACE,gr0,icc0 |
| 898 | bne icc0,#0,__syscall_trace_entry |
| 899 | |
| 900 | __syscall_call: |
| 901 | slli.p gr7,#2,gr7 |
| 902 | sethi %hi(sys_call_table),gr5 |
| 903 | setlo %lo(sys_call_table),gr5 |
| 904 | ld @(gr5,gr7),gr4 |
| 905 | calll @(gr4,gr0) |
| 906 | |
| 907 | |
| 908 | ############################################################################### |
| 909 | # |
| 910 | # return to interrupted process |
| 911 | # |
| 912 | ############################################################################### |
| 913 | __syscall_exit: |
| 914 | LEDS 0x6300 |
| 915 | |
David Howells | a2eddc7c | 2012-05-01 21:31:42 +0100 | [diff] [blame] | 916 | # keep current PSR in GR23 |
| 917 | movsg psr,gr23 |
| 918 | |
| 919 | ldi @(gr28,#REG_PSR),gr22 |
| 920 | |
| 921 | sti.p gr8,@(gr28,#REG_GR(8)) ; save return value |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 922 | |
| 923 | # rebuild saved psr - execve will change it for init/main.c |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 924 | srli gr22,#1,gr5 |
| 925 | andi.p gr22,#~PSR_PS,gr22 |
| 926 | andi gr5,#PSR_PS,gr5 |
| 927 | or gr5,gr22,gr22 |
David Howells | a2eddc7c | 2012-05-01 21:31:42 +0100 | [diff] [blame] | 928 | ori.p gr22,#PSR_S,gr22 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 929 | |
| 930 | # make sure we don't miss an interrupt setting need_resched or sigpending between |
| 931 | # sampling and the RETT |
| 932 | ori gr23,#PSR_PIL_14,gr23 |
| 933 | movgs gr23,psr |
| 934 | |
| 935 | ldi @(gr15,#TI_FLAGS),gr4 |
David Howells | 1e5ef91 | 2012-05-01 21:31:33 +0100 | [diff] [blame] | 936 | andicc gr4,#_TIF_ALLWORK_MASK,gr0,icc0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 937 | bne icc0,#0,__syscall_exit_work |
| 938 | |
| 939 | # restore all registers and return |
| 940 | __entry_return_direct: |
| 941 | LEDS 0x6301 |
| 942 | |
| 943 | andi gr22,#~PSR_ET,gr22 |
| 944 | movgs gr22,psr |
| 945 | |
| 946 | ldi @(gr28,#REG_ISR),gr23 |
| 947 | lddi @(gr28,#REG_CCR),gr24 |
| 948 | lddi @(gr28,#REG_LR) ,gr26 |
| 949 | ldi @(gr28,#REG_PC) ,gr21 |
| 950 | ldi @(gr28,#REG_TBR),gr20 |
| 951 | |
| 952 | movgs gr20,tbr |
| 953 | movgs gr21,pcsr |
| 954 | movgs gr23,isr |
| 955 | movgs gr24,ccr |
| 956 | movgs gr25,cccr |
| 957 | movgs gr26,lr |
| 958 | movgs gr27,lcr |
| 959 | |
| 960 | lddi @(gr28,#REG_GNER0),gr4 |
| 961 | movgs gr4,gner0 |
| 962 | movgs gr5,gner1 |
| 963 | |
| 964 | lddi @(gr28,#REG_IACC0),gr4 |
| 965 | movgs gr4,iacc0h |
| 966 | movgs gr5,iacc0l |
| 967 | |
| 968 | lddi @(gr28,#REG_GR(4)) ,gr4 |
| 969 | lddi @(gr28,#REG_GR(6)) ,gr6 |
| 970 | lddi @(gr28,#REG_GR(8)) ,gr8 |
| 971 | lddi @(gr28,#REG_GR(10)),gr10 |
| 972 | lddi @(gr28,#REG_GR(12)),gr12 |
| 973 | lddi @(gr28,#REG_GR(14)),gr14 |
| 974 | lddi @(gr28,#REG_GR(16)),gr16 |
| 975 | lddi @(gr28,#REG_GR(18)),gr18 |
| 976 | lddi @(gr28,#REG_GR(20)),gr20 |
| 977 | lddi @(gr28,#REG_GR(22)),gr22 |
| 978 | lddi @(gr28,#REG_GR(24)),gr24 |
| 979 | lddi @(gr28,#REG_GR(26)),gr26 |
| 980 | ldi @(gr28,#REG_GR(29)),gr29 |
| 981 | lddi @(gr28,#REG_GR(30)),gr30 |
| 982 | |
| 983 | # check to see if a debugging return is required |
| 984 | LEDS 0x67f0 |
| 985 | movsg ccr,gr2 |
| 986 | ldi @(gr28,#REG__STATUS),gr3 |
| 987 | andicc gr3,#REG__STATUS_STEP,gr0,icc0 |
| 988 | bne icc0,#0,__entry_return_singlestep |
| 989 | movgs gr2,ccr |
| 990 | |
| 991 | ldi @(gr28,#REG_SP) ,sp |
| 992 | lddi @(gr28,#REG_GR(2)) ,gr2 |
| 993 | ldi @(gr28,#REG_GR(28)),gr28 |
| 994 | |
| 995 | LEDS 0x67fe |
| 996 | // movsg pcsr,gr31 |
| 997 | // LEDS32 |
| 998 | |
| 999 | #if 0 |
| 1000 | # store the current frame in the workram on the FR451 |
| 1001 | movgs gr28,scr2 |
| 1002 | sethi.p %hi(0xfe800000),gr28 |
| 1003 | setlo %lo(0xfe800000),gr28 |
| 1004 | |
| 1005 | stdi gr2,@(gr28,#REG_GR(2)) |
| 1006 | stdi gr4,@(gr28,#REG_GR(4)) |
| 1007 | stdi gr6,@(gr28,#REG_GR(6)) |
| 1008 | stdi gr8,@(gr28,#REG_GR(8)) |
| 1009 | stdi gr10,@(gr28,#REG_GR(10)) |
| 1010 | stdi gr12,@(gr28,#REG_GR(12)) |
| 1011 | stdi gr14,@(gr28,#REG_GR(14)) |
| 1012 | stdi gr16,@(gr28,#REG_GR(16)) |
| 1013 | stdi gr18,@(gr28,#REG_GR(18)) |
| 1014 | stdi gr24,@(gr28,#REG_GR(24)) |
| 1015 | stdi gr26,@(gr28,#REG_GR(26)) |
| 1016 | sti gr29,@(gr28,#REG_GR(29)) |
| 1017 | stdi gr30,@(gr28,#REG_GR(30)) |
| 1018 | |
| 1019 | movsg tbr ,gr30 |
| 1020 | sti gr30,@(gr28,#REG_TBR) |
| 1021 | movsg pcsr,gr30 |
| 1022 | sti gr30,@(gr28,#REG_PC) |
| 1023 | movsg psr ,gr30 |
| 1024 | sti gr30,@(gr28,#REG_PSR) |
| 1025 | movsg isr ,gr30 |
| 1026 | sti gr30,@(gr28,#REG_ISR) |
| 1027 | movsg ccr ,gr30 |
| 1028 | movsg cccr,gr31 |
| 1029 | stdi gr30,@(gr28,#REG_CCR) |
| 1030 | movsg lr ,gr30 |
| 1031 | movsg lcr ,gr31 |
| 1032 | stdi gr30,@(gr28,#REG_LR) |
| 1033 | sti gr0 ,@(gr28,#REG_SYSCALLNO) |
| 1034 | movsg scr2,gr28 |
| 1035 | #endif |
| 1036 | |
| 1037 | rett #0 |
| 1038 | |
| 1039 | # return via break.S |
| 1040 | __entry_return_singlestep: |
| 1041 | movgs gr2,ccr |
| 1042 | lddi @(gr28,#REG_GR(2)) ,gr2 |
| 1043 | ldi @(gr28,#REG_SP) ,sp |
| 1044 | ldi @(gr28,#REG_GR(28)),gr28 |
| 1045 | LEDS 0x67ff |
| 1046 | break |
| 1047 | .globl __entry_return_singlestep_breaks_here |
| 1048 | __entry_return_singlestep_breaks_here: |
| 1049 | nop |
| 1050 | |
| 1051 | |
| 1052 | ############################################################################### |
| 1053 | # |
| 1054 | # return to a process interrupted in kernel space |
| 1055 | # - we need to consider preemption if that is enabled |
| 1056 | # |
| 1057 | ############################################################################### |
| 1058 | .balign L1_CACHE_BYTES |
| 1059 | __entry_return_from_kernel_exception: |
| 1060 | LEDS 0x6302 |
| 1061 | movsg psr,gr23 |
| 1062 | ori gr23,#PSR_PIL_14,gr23 |
| 1063 | movgs gr23,psr |
| 1064 | bra __entry_return_direct |
| 1065 | |
| 1066 | .balign L1_CACHE_BYTES |
| 1067 | __entry_return_from_kernel_interrupt: |
| 1068 | LEDS 0x6303 |
| 1069 | movsg psr,gr23 |
| 1070 | ori gr23,#PSR_PIL_14,gr23 |
| 1071 | movgs gr23,psr |
| 1072 | |
| 1073 | #ifdef CONFIG_PREEMPT |
| 1074 | ldi @(gr15,#TI_PRE_COUNT),gr5 |
| 1075 | subicc gr5,#0,gr0,icc0 |
| 1076 | beq icc0,#0,__entry_return_direct |
| 1077 | |
Al Viro | 1d72d9f8 | 2012-11-02 12:05:44 -0400 | [diff] [blame] | 1078 | subcc gr0,gr0,gr0,icc2 /* set Z and clear C */ |
| 1079 | call preempt_schedule_irq |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1080 | #endif |
Al Viro | 1d72d9f8 | 2012-11-02 12:05:44 -0400 | [diff] [blame] | 1081 | bra __entry_return_direct |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1082 | |
| 1083 | |
| 1084 | ############################################################################### |
| 1085 | # |
| 1086 | # perform work that needs to be done immediately before resumption |
| 1087 | # |
| 1088 | ############################################################################### |
| 1089 | .globl __entry_return_from_user_exception |
| 1090 | .balign L1_CACHE_BYTES |
| 1091 | __entry_return_from_user_exception: |
| 1092 | LEDS 0x6501 |
| 1093 | |
| 1094 | __entry_resume_userspace: |
| 1095 | # make sure we don't miss an interrupt setting need_resched or sigpending between |
| 1096 | # sampling and the RETT |
| 1097 | movsg psr,gr23 |
| 1098 | ori gr23,#PSR_PIL_14,gr23 |
| 1099 | movgs gr23,psr |
| 1100 | |
| 1101 | __entry_return_from_user_interrupt: |
| 1102 | LEDS 0x6402 |
| 1103 | ldi @(gr15,#TI_FLAGS),gr4 |
David Howells | 1e5ef91 | 2012-05-01 21:31:33 +0100 | [diff] [blame] | 1104 | andicc gr4,#_TIF_WORK_MASK,gr0,icc0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1105 | beq icc0,#1,__entry_return_direct |
| 1106 | |
| 1107 | __entry_work_pending: |
| 1108 | LEDS 0x6404 |
| 1109 | andicc gr4,#_TIF_NEED_RESCHED,gr0,icc0 |
| 1110 | beq icc0,#1,__entry_work_notifysig |
| 1111 | |
| 1112 | __entry_work_resched: |
| 1113 | LEDS 0x6408 |
| 1114 | movsg psr,gr23 |
| 1115 | andi gr23,#~PSR_PIL,gr23 |
| 1116 | movgs gr23,psr |
| 1117 | call schedule |
| 1118 | movsg psr,gr23 |
| 1119 | ori gr23,#PSR_PIL_14,gr23 |
| 1120 | movgs gr23,psr |
| 1121 | |
| 1122 | LEDS 0x6401 |
| 1123 | ldi @(gr15,#TI_FLAGS),gr4 |
David Howells | 1e5ef91 | 2012-05-01 21:31:33 +0100 | [diff] [blame] | 1124 | andicc gr4,#_TIF_WORK_MASK,gr0,icc0 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1125 | beq icc0,#1,__entry_return_direct |
| 1126 | andicc gr4,#_TIF_NEED_RESCHED,gr0,icc0 |
| 1127 | bne icc0,#1,__entry_work_resched |
| 1128 | |
| 1129 | __entry_work_notifysig: |
| 1130 | LEDS 0x6410 |
| 1131 | ori.p gr4,#0,gr8 |
| 1132 | call do_notify_resume |
David Howells | 8efc0ab | 2006-01-06 00:11:44 -0800 | [diff] [blame] | 1133 | bra __entry_resume_userspace |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1134 | |
| 1135 | # perform syscall entry tracing |
| 1136 | __syscall_trace_entry: |
| 1137 | LEDS 0x6320 |
David Howells | 4a3b989 | 2009-06-11 13:05:24 +0100 | [diff] [blame] | 1138 | call syscall_trace_entry |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1139 | |
David Howells | 4a3b989 | 2009-06-11 13:05:24 +0100 | [diff] [blame] | 1140 | lddi.p @(gr28,#REG_GR(8)) ,gr8 |
| 1141 | ori gr8,#0,gr7 ; syscall_trace_entry() returned new syscallno |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1142 | lddi @(gr28,#REG_GR(10)),gr10 |
| 1143 | lddi.p @(gr28,#REG_GR(12)),gr12 |
| 1144 | |
| 1145 | subicc gr7,#nr_syscalls,gr0,icc0 |
| 1146 | bnc icc0,#0,__syscall_badsys |
| 1147 | bra __syscall_call |
| 1148 | |
| 1149 | # perform syscall exit tracing |
| 1150 | __syscall_exit_work: |
| 1151 | LEDS 0x6340 |
David Howells | 137c3c4 | 2012-05-01 19:44:14 +0100 | [diff] [blame] | 1152 | andicc gr22,#PSR_PS,gr0,icc1 ; don't handle on return to kernel mode |
| 1153 | andicc.p gr4,#_TIF_SYSCALL_TRACE,gr0,icc0 |
| 1154 | bne icc1,#0,__entry_return_direct |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1155 | beq icc0,#1,__entry_work_pending |
| 1156 | |
| 1157 | movsg psr,gr23 |
David Howells | 4a3b989 | 2009-06-11 13:05:24 +0100 | [diff] [blame] | 1158 | andi gr23,#~PSR_PIL,gr23 ; could let syscall_trace_exit() call schedule() |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1159 | movgs gr23,psr |
| 1160 | |
David Howells | 4a3b989 | 2009-06-11 13:05:24 +0100 | [diff] [blame] | 1161 | call syscall_trace_exit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1162 | bra __entry_resume_userspace |
| 1163 | |
| 1164 | __syscall_badsys: |
| 1165 | LEDS 0x6380 |
| 1166 | setlos #-ENOSYS,gr8 |
| 1167 | sti gr8,@(gr28,#REG_GR(8)) ; save return value |
| 1168 | bra __entry_resume_userspace |
| 1169 | |
| 1170 | |
| 1171 | ############################################################################### |
| 1172 | # |
| 1173 | # syscall vector table |
| 1174 | # |
| 1175 | ############################################################################### |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1176 | .section .rodata |
| 1177 | ALIGN |
| 1178 | .globl sys_call_table |
| 1179 | sys_call_table: |
| 1180 | .long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */ |
| 1181 | .long sys_exit |
| 1182 | .long sys_fork |
| 1183 | .long sys_read |
| 1184 | .long sys_write |
| 1185 | .long sys_open /* 5 */ |
| 1186 | .long sys_close |
| 1187 | .long sys_waitpid |
| 1188 | .long sys_creat |
| 1189 | .long sys_link |
| 1190 | .long sys_unlink /* 10 */ |
| 1191 | .long sys_execve |
| 1192 | .long sys_chdir |
| 1193 | .long sys_time |
| 1194 | .long sys_mknod |
| 1195 | .long sys_chmod /* 15 */ |
| 1196 | .long sys_lchown16 |
| 1197 | .long sys_ni_syscall /* old break syscall holder */ |
| 1198 | .long sys_stat |
| 1199 | .long sys_lseek |
| 1200 | .long sys_getpid /* 20 */ |
| 1201 | .long sys_mount |
| 1202 | .long sys_oldumount |
| 1203 | .long sys_setuid16 |
| 1204 | .long sys_getuid16 |
| 1205 | .long sys_ni_syscall // sys_stime /* 25 */ |
| 1206 | .long sys_ptrace |
| 1207 | .long sys_alarm |
| 1208 | .long sys_fstat |
| 1209 | .long sys_pause |
| 1210 | .long sys_utime /* 30 */ |
| 1211 | .long sys_ni_syscall /* old stty syscall holder */ |
| 1212 | .long sys_ni_syscall /* old gtty syscall holder */ |
| 1213 | .long sys_access |
| 1214 | .long sys_nice |
| 1215 | .long sys_ni_syscall /* 35 */ /* old ftime syscall holder */ |
| 1216 | .long sys_sync |
| 1217 | .long sys_kill |
| 1218 | .long sys_rename |
| 1219 | .long sys_mkdir |
| 1220 | .long sys_rmdir /* 40 */ |
| 1221 | .long sys_dup |
| 1222 | .long sys_pipe |
| 1223 | .long sys_times |
| 1224 | .long sys_ni_syscall /* old prof syscall holder */ |
| 1225 | .long sys_brk /* 45 */ |
| 1226 | .long sys_setgid16 |
| 1227 | .long sys_getgid16 |
| 1228 | .long sys_ni_syscall // sys_signal |
| 1229 | .long sys_geteuid16 |
| 1230 | .long sys_getegid16 /* 50 */ |
| 1231 | .long sys_acct |
| 1232 | .long sys_umount /* recycled never used phys( */ |
| 1233 | .long sys_ni_syscall /* old lock syscall holder */ |
| 1234 | .long sys_ioctl |
| 1235 | .long sys_fcntl /* 55 */ |
| 1236 | .long sys_ni_syscall /* old mpx syscall holder */ |
| 1237 | .long sys_setpgid |
| 1238 | .long sys_ni_syscall /* old ulimit syscall holder */ |
| 1239 | .long sys_ni_syscall /* old old uname syscall */ |
| 1240 | .long sys_umask /* 60 */ |
| 1241 | .long sys_chroot |
| 1242 | .long sys_ustat |
| 1243 | .long sys_dup2 |
| 1244 | .long sys_getppid |
| 1245 | .long sys_getpgrp /* 65 */ |
| 1246 | .long sys_setsid |
| 1247 | .long sys_sigaction |
| 1248 | .long sys_ni_syscall // sys_sgetmask |
| 1249 | .long sys_ni_syscall // sys_ssetmask |
| 1250 | .long sys_setreuid16 /* 70 */ |
| 1251 | .long sys_setregid16 |
| 1252 | .long sys_sigsuspend |
| 1253 | .long sys_ni_syscall // sys_sigpending |
| 1254 | .long sys_sethostname |
| 1255 | .long sys_setrlimit /* 75 */ |
| 1256 | .long sys_ni_syscall // sys_old_getrlimit |
| 1257 | .long sys_getrusage |
| 1258 | .long sys_gettimeofday |
| 1259 | .long sys_settimeofday |
| 1260 | .long sys_getgroups16 /* 80 */ |
| 1261 | .long sys_setgroups16 |
| 1262 | .long sys_ni_syscall /* old_select slot */ |
| 1263 | .long sys_symlink |
| 1264 | .long sys_lstat |
| 1265 | .long sys_readlink /* 85 */ |
| 1266 | .long sys_uselib |
| 1267 | .long sys_swapon |
| 1268 | .long sys_reboot |
| 1269 | .long sys_ni_syscall // old_readdir |
| 1270 | .long sys_ni_syscall /* 90 */ /* old_mmap slot */ |
| 1271 | .long sys_munmap |
| 1272 | .long sys_truncate |
| 1273 | .long sys_ftruncate |
| 1274 | .long sys_fchmod |
| 1275 | .long sys_fchown16 /* 95 */ |
| 1276 | .long sys_getpriority |
| 1277 | .long sys_setpriority |
| 1278 | .long sys_ni_syscall /* old profil syscall holder */ |
| 1279 | .long sys_statfs |
| 1280 | .long sys_fstatfs /* 100 */ |
| 1281 | .long sys_ni_syscall /* ioperm for i386 */ |
| 1282 | .long sys_socketcall |
| 1283 | .long sys_syslog |
| 1284 | .long sys_setitimer |
| 1285 | .long sys_getitimer /* 105 */ |
| 1286 | .long sys_newstat |
| 1287 | .long sys_newlstat |
| 1288 | .long sys_newfstat |
| 1289 | .long sys_ni_syscall /* obsolete olduname( syscall */ |
| 1290 | .long sys_ni_syscall /* iopl for i386 */ /* 110 */ |
| 1291 | .long sys_vhangup |
| 1292 | .long sys_ni_syscall /* obsolete idle( syscall */ |
| 1293 | .long sys_ni_syscall /* vm86old for i386 */ |
| 1294 | .long sys_wait4 |
| 1295 | .long sys_swapoff /* 115 */ |
| 1296 | .long sys_sysinfo |
| 1297 | .long sys_ipc |
| 1298 | .long sys_fsync |
| 1299 | .long sys_sigreturn |
| 1300 | .long sys_clone /* 120 */ |
| 1301 | .long sys_setdomainname |
| 1302 | .long sys_newuname |
| 1303 | .long sys_ni_syscall /* old "cacheflush" */ |
| 1304 | .long sys_adjtimex |
Hyok S. Choi | 3016b42 | 2006-04-10 22:53:06 -0700 | [diff] [blame] | 1305 | .long sys_mprotect /* 125 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1306 | .long sys_sigprocmask |
| 1307 | .long sys_ni_syscall /* old "create_module" */ |
| 1308 | .long sys_init_module |
| 1309 | .long sys_delete_module |
| 1310 | .long sys_ni_syscall /* old "get_kernel_syms" */ |
| 1311 | .long sys_quotactl |
| 1312 | .long sys_getpgid |
| 1313 | .long sys_fchdir |
| 1314 | .long sys_bdflush |
| 1315 | .long sys_sysfs /* 135 */ |
| 1316 | .long sys_personality |
| 1317 | .long sys_ni_syscall /* for afs_syscall */ |
| 1318 | .long sys_setfsuid16 |
| 1319 | .long sys_setfsgid16 |
| 1320 | .long sys_llseek /* 140 */ |
| 1321 | .long sys_getdents |
| 1322 | .long sys_select |
| 1323 | .long sys_flock |
Hyok S. Choi | 3016b42 | 2006-04-10 22:53:06 -0700 | [diff] [blame] | 1324 | .long sys_msync |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1325 | .long sys_readv /* 145 */ |
| 1326 | .long sys_writev |
| 1327 | .long sys_getsid |
| 1328 | .long sys_fdatasync |
| 1329 | .long sys_sysctl |
Hyok S. Choi | 3016b42 | 2006-04-10 22:53:06 -0700 | [diff] [blame] | 1330 | .long sys_mlock /* 150 */ |
| 1331 | .long sys_munlock |
| 1332 | .long sys_mlockall |
| 1333 | .long sys_munlockall |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1334 | .long sys_sched_setparam |
| 1335 | .long sys_sched_getparam /* 155 */ |
| 1336 | .long sys_sched_setscheduler |
| 1337 | .long sys_sched_getscheduler |
| 1338 | .long sys_sched_yield |
| 1339 | .long sys_sched_get_priority_max |
| 1340 | .long sys_sched_get_priority_min /* 160 */ |
| 1341 | .long sys_sched_rr_get_interval |
| 1342 | .long sys_nanosleep |
Hyok S. Choi | 3016b42 | 2006-04-10 22:53:06 -0700 | [diff] [blame] | 1343 | .long sys_mremap |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1344 | .long sys_setresuid16 |
| 1345 | .long sys_getresuid16 /* 165 */ |
| 1346 | .long sys_ni_syscall /* for vm86 */ |
| 1347 | .long sys_ni_syscall /* Old sys_query_module */ |
| 1348 | .long sys_poll |
NeilBrown | f5b9409 | 2011-08-26 18:03:11 -0400 | [diff] [blame] | 1349 | .long sys_ni_syscall /* Old nfsservctl */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1350 | .long sys_setresgid16 /* 170 */ |
| 1351 | .long sys_getresgid16 |
| 1352 | .long sys_prctl |
| 1353 | .long sys_rt_sigreturn |
| 1354 | .long sys_rt_sigaction |
| 1355 | .long sys_rt_sigprocmask /* 175 */ |
| 1356 | .long sys_rt_sigpending |
| 1357 | .long sys_rt_sigtimedwait |
| 1358 | .long sys_rt_sigqueueinfo |
| 1359 | .long sys_rt_sigsuspend |
| 1360 | .long sys_pread64 /* 180 */ |
| 1361 | .long sys_pwrite64 |
| 1362 | .long sys_chown16 |
| 1363 | .long sys_getcwd |
| 1364 | .long sys_capget |
| 1365 | .long sys_capset /* 185 */ |
| 1366 | .long sys_sigaltstack |
| 1367 | .long sys_sendfile |
| 1368 | .long sys_ni_syscall /* streams1 */ |
| 1369 | .long sys_ni_syscall /* streams2 */ |
| 1370 | .long sys_vfork /* 190 */ |
| 1371 | .long sys_getrlimit |
| 1372 | .long sys_mmap2 |
| 1373 | .long sys_truncate64 |
| 1374 | .long sys_ftruncate64 |
| 1375 | .long sys_stat64 /* 195 */ |
| 1376 | .long sys_lstat64 |
| 1377 | .long sys_fstat64 |
| 1378 | .long sys_lchown |
| 1379 | .long sys_getuid |
| 1380 | .long sys_getgid /* 200 */ |
| 1381 | .long sys_geteuid |
| 1382 | .long sys_getegid |
| 1383 | .long sys_setreuid |
| 1384 | .long sys_setregid |
| 1385 | .long sys_getgroups /* 205 */ |
| 1386 | .long sys_setgroups |
| 1387 | .long sys_fchown |
| 1388 | .long sys_setresuid |
| 1389 | .long sys_getresuid |
| 1390 | .long sys_setresgid /* 210 */ |
| 1391 | .long sys_getresgid |
| 1392 | .long sys_chown |
| 1393 | .long sys_setuid |
| 1394 | .long sys_setgid |
| 1395 | .long sys_setfsuid /* 215 */ |
| 1396 | .long sys_setfsgid |
| 1397 | .long sys_pivot_root |
Hyok S. Choi | 3016b42 | 2006-04-10 22:53:06 -0700 | [diff] [blame] | 1398 | .long sys_mincore |
| 1399 | .long sys_madvise |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1400 | .long sys_getdents64 /* 220 */ |
| 1401 | .long sys_fcntl64 |
| 1402 | .long sys_ni_syscall /* reserved for TUX */ |
| 1403 | .long sys_ni_syscall /* Reserved for Security */ |
| 1404 | .long sys_gettid |
| 1405 | .long sys_readahead /* 225 */ |
| 1406 | .long sys_setxattr |
| 1407 | .long sys_lsetxattr |
| 1408 | .long sys_fsetxattr |
| 1409 | .long sys_getxattr |
| 1410 | .long sys_lgetxattr /* 230 */ |
| 1411 | .long sys_fgetxattr |
| 1412 | .long sys_listxattr |
| 1413 | .long sys_llistxattr |
| 1414 | .long sys_flistxattr |
| 1415 | .long sys_removexattr /* 235 */ |
| 1416 | .long sys_lremovexattr |
| 1417 | .long sys_fremovexattr |
| 1418 | .long sys_tkill |
| 1419 | .long sys_sendfile64 |
| 1420 | .long sys_futex /* 240 */ |
| 1421 | .long sys_sched_setaffinity |
| 1422 | .long sys_sched_getaffinity |
| 1423 | .long sys_ni_syscall //sys_set_thread_area |
| 1424 | .long sys_ni_syscall //sys_get_thread_area |
| 1425 | .long sys_io_setup /* 245 */ |
| 1426 | .long sys_io_destroy |
| 1427 | .long sys_io_getevents |
| 1428 | .long sys_io_submit |
| 1429 | .long sys_io_cancel |
| 1430 | .long sys_fadvise64 /* 250 */ |
| 1431 | .long sys_ni_syscall |
| 1432 | .long sys_exit_group |
| 1433 | .long sys_lookup_dcookie |
| 1434 | .long sys_epoll_create |
| 1435 | .long sys_epoll_ctl /* 255 */ |
| 1436 | .long sys_epoll_wait |
Hyok S. Choi | 3016b42 | 2006-04-10 22:53:06 -0700 | [diff] [blame] | 1437 | .long sys_remap_file_pages |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1438 | .long sys_set_tid_address |
| 1439 | .long sys_timer_create |
| 1440 | .long sys_timer_settime /* 260 */ |
| 1441 | .long sys_timer_gettime |
| 1442 | .long sys_timer_getoverrun |
| 1443 | .long sys_timer_delete |
| 1444 | .long sys_clock_settime |
| 1445 | .long sys_clock_gettime /* 265 */ |
| 1446 | .long sys_clock_getres |
| 1447 | .long sys_clock_nanosleep |
| 1448 | .long sys_statfs64 |
| 1449 | .long sys_fstatfs64 |
| 1450 | .long sys_tgkill /* 270 */ |
| 1451 | .long sys_utimes |
| 1452 | .long sys_fadvise64_64 |
| 1453 | .long sys_ni_syscall /* sys_vserver */ |
| 1454 | .long sys_mbind |
| 1455 | .long sys_get_mempolicy |
| 1456 | .long sys_set_mempolicy |
| 1457 | .long sys_mq_open |
| 1458 | .long sys_mq_unlink |
| 1459 | .long sys_mq_timedsend |
| 1460 | .long sys_mq_timedreceive /* 280 */ |
| 1461 | .long sys_mq_notify |
| 1462 | .long sys_mq_getsetattr |
| 1463 | .long sys_ni_syscall /* reserved for kexec */ |
| 1464 | .long sys_waitid |
| 1465 | .long sys_ni_syscall /* 285 */ /* available */ |
| 1466 | .long sys_add_key |
| 1467 | .long sys_request_key |
| 1468 | .long sys_keyctl |
David Howells | 68f624f | 2006-02-14 13:53:18 -0800 | [diff] [blame] | 1469 | .long sys_ioprio_set |
| 1470 | .long sys_ioprio_get /* 290 */ |
| 1471 | .long sys_inotify_init |
| 1472 | .long sys_inotify_add_watch |
| 1473 | .long sys_inotify_rm_watch |
| 1474 | .long sys_migrate_pages |
| 1475 | .long sys_openat /* 295 */ |
| 1476 | .long sys_mkdirat |
| 1477 | .long sys_mknodat |
| 1478 | .long sys_fchownat |
| 1479 | .long sys_futimesat |
Al Viro | be2338f | 2006-06-23 02:04:07 -0700 | [diff] [blame] | 1480 | .long sys_fstatat64 /* 300 */ |
David Howells | 68f624f | 2006-02-14 13:53:18 -0800 | [diff] [blame] | 1481 | .long sys_unlinkat |
| 1482 | .long sys_renameat |
| 1483 | .long sys_linkat |
| 1484 | .long sys_symlinkat |
| 1485 | .long sys_readlinkat /* 305 */ |
| 1486 | .long sys_fchmodat |
| 1487 | .long sys_faccessat |
| 1488 | .long sys_pselect6 |
| 1489 | .long sys_ppoll |
David Howells | 5616df2 | 2007-05-08 20:27:02 -0700 | [diff] [blame] | 1490 | .long sys_unshare /* 310 */ |
| 1491 | .long sys_set_robust_list |
| 1492 | .long sys_get_robust_list |
| 1493 | .long sys_splice |
| 1494 | .long sys_sync_file_range |
| 1495 | .long sys_tee /* 315 */ |
| 1496 | .long sys_vmsplice |
| 1497 | .long sys_move_pages |
| 1498 | .long sys_getcpu |
| 1499 | .long sys_epoll_pwait |
David Howells | c1a39e0 | 2007-07-15 23:38:27 -0700 | [diff] [blame] | 1500 | .long sys_utimensat /* 320 */ |
| 1501 | .long sys_signalfd |
David Howells | e80af3a | 2008-02-20 18:11:44 +0000 | [diff] [blame] | 1502 | .long sys_timerfd_create |
David Howells | c1a39e0 | 2007-07-15 23:38:27 -0700 | [diff] [blame] | 1503 | .long sys_eventfd |
David Howells | 60c9834 | 2007-08-10 13:00:50 -0700 | [diff] [blame] | 1504 | .long sys_fallocate |
David Howells | e80af3a | 2008-02-20 18:11:44 +0000 | [diff] [blame] | 1505 | .long sys_timerfd_settime /* 325 */ |
| 1506 | .long sys_timerfd_gettime |
David Howells | 784dd7b | 2008-07-31 13:46:33 +0100 | [diff] [blame] | 1507 | .long sys_signalfd4 |
| 1508 | .long sys_eventfd2 |
| 1509 | .long sys_epoll_create1 |
| 1510 | .long sys_dup3 /* 330 */ |
| 1511 | .long sys_pipe2 |
| 1512 | .long sys_inotify_init1 |
David Howells | e37469f | 2009-04-27 11:55:17 +0100 | [diff] [blame] | 1513 | .long sys_preadv |
| 1514 | .long sys_pwritev |
David Howells | aee3ff1 | 2009-06-30 22:24:54 +0100 | [diff] [blame] | 1515 | .long sys_rt_tgsigqueueinfo /* 335 */ |
Ingo Molnar | cdd6c48 | 2009-09-21 12:02:48 +0200 | [diff] [blame] | 1516 | .long sys_perf_event_open |
Eric W. Biederman | 7b21fdd | 2011-05-27 19:28:27 -0700 | [diff] [blame] | 1517 | .long sys_setns |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1518 | |
| 1519 | syscall_table_size = (. - sys_call_table) |