2 * MIPS emulation helpers for qemu.
4 * Copyright (c) 2004-2005 Jocelyn Mayer
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
26 #include "sysemu/kvm.h"
27 #include "exec/cpu_ldst.h"
39 #if !defined(CONFIG_USER_ONLY)
41 /* no MMU emulation */
42 int no_mmu_map_address (CPUMIPSState *env, hwaddr *physical, int *prot,
43 target_ulong address, int rw, int access_type)
46 *prot = PAGE_READ | PAGE_WRITE;
50 /* fixed mapping MMU emulation */
51 int fixed_mmu_map_address (CPUMIPSState *env, hwaddr *physical, int *prot,
52 target_ulong address, int rw, int access_type)
54 if (address <= (int32_t)0x7FFFFFFFUL) {
55 if (!(env->CP0_Status & (1 << CP0St_ERL)))
56 *physical = address + 0x40000000UL;
59 } else if (address <= (int32_t)0xBFFFFFFFUL)
60 *physical = address & 0x1FFFFFFF;
64 *prot = PAGE_READ | PAGE_WRITE;
68 /* MIPS32/MIPS64 R4000-style MMU emulation */
69 int r4k_map_address (CPUMIPSState *env, hwaddr *physical, int *prot,
70 target_ulong address, int rw, int access_type)
72 uint8_t ASID = env->CP0_EntryHi & 0xFF;
75 for (i = 0; i < env->tlb->tlb_in_use; i++) {
76 r4k_tlb_t *tlb = &env->tlb->mmu.r4k.tlb[i];
77 /* 1k pages are not supported. */
78 target_ulong mask = tlb->PageMask | ~(TARGET_PAGE_MASK << 1);
79 target_ulong tag = address & ~mask;
80 target_ulong VPN = tlb->VPN & ~mask;
81 #if defined(TARGET_MIPS64)
85 /* Check ASID, virtual page number & size */
86 if ((tlb->G == 1 || tlb->ASID == ASID) && VPN == tag && !tlb->EHINV) {
88 int n = !!(address & mask & ~(mask >> 1));
89 /* Check access rights */
90 if (!(n ? tlb->V1 : tlb->V0)) {
91 return TLBRET_INVALID;
93 if (rw == MMU_INST_FETCH && (n ? tlb->XI1 : tlb->XI0)) {
96 if (rw == MMU_DATA_LOAD && (n ? tlb->RI1 : tlb->RI0)) {
99 if (rw != MMU_DATA_STORE || (n ? tlb->D1 : tlb->D0)) {
100 *physical = tlb->PFN[n] | (address & (mask >> 1));
102 if (n ? tlb->D1 : tlb->D0)
109 return TLBRET_NOMATCH;
112 static int get_physical_address (CPUMIPSState *env, hwaddr *physical,
113 int *prot, target_ulong real_address,
114 int rw, int access_type)
116 /* User mode can only access useg/xuseg */
117 int user_mode = (env->hflags & MIPS_HFLAG_MODE) == MIPS_HFLAG_UM;
118 int supervisor_mode = (env->hflags & MIPS_HFLAG_MODE) == MIPS_HFLAG_SM;
119 int kernel_mode = !user_mode && !supervisor_mode;
120 #if defined(TARGET_MIPS64)
121 int UX = (env->CP0_Status & (1 << CP0St_UX)) != 0;
122 int SX = (env->CP0_Status & (1 << CP0St_SX)) != 0;
123 int KX = (env->CP0_Status & (1 << CP0St_KX)) != 0;
125 int ret = TLBRET_MATCH;
126 /* effective address (modified for KVM T&E kernel segments) */
127 target_ulong address = real_address;
129 #define USEG_LIMIT 0x7FFFFFFFUL
130 #define KSEG0_BASE 0x80000000UL
131 #define KSEG1_BASE 0xA0000000UL
132 #define KSEG2_BASE 0xC0000000UL
133 #define KSEG3_BASE 0xE0000000UL
135 #define KVM_KSEG0_BASE 0x40000000UL
136 #define KVM_KSEG2_BASE 0x60000000UL
139 /* KVM T&E adds guest kernel segments in useg */
140 if (real_address >= KVM_KSEG0_BASE) {
141 if (real_address < KVM_KSEG2_BASE) {
143 address += KSEG0_BASE - KVM_KSEG0_BASE;
144 } else if (real_address <= USEG_LIMIT) {
146 address += KSEG2_BASE - KVM_KSEG2_BASE;
151 if (address <= USEG_LIMIT) {
153 if (env->CP0_Status & (1 << CP0St_ERL)) {
154 *physical = address & 0xFFFFFFFF;
155 *prot = PAGE_READ | PAGE_WRITE;
157 ret = env->tlb->map_address(env, physical, prot, real_address, rw, access_type);
159 #if defined(TARGET_MIPS64)
160 } else if (address < 0x4000000000000000ULL) {
162 if (UX && address <= (0x3FFFFFFFFFFFFFFFULL & env->SEGMask)) {
163 ret = env->tlb->map_address(env, physical, prot, real_address, rw, access_type);
165 ret = TLBRET_BADADDR;
167 } else if (address < 0x8000000000000000ULL) {
169 if ((supervisor_mode || kernel_mode) &&
170 SX && address <= (0x7FFFFFFFFFFFFFFFULL & env->SEGMask)) {
171 ret = env->tlb->map_address(env, physical, prot, real_address, rw, access_type);
173 ret = TLBRET_BADADDR;
175 } else if (address < 0xC000000000000000ULL) {
177 if (kernel_mode && KX &&
178 (address & 0x07FFFFFFFFFFFFFFULL) <= env->PAMask) {
179 *physical = address & env->PAMask;
180 *prot = PAGE_READ | PAGE_WRITE;
182 ret = TLBRET_BADADDR;
184 } else if (address < 0xFFFFFFFF80000000ULL) {
186 if (kernel_mode && KX &&
187 address <= (0xFFFFFFFF7FFFFFFFULL & env->SEGMask)) {
188 ret = env->tlb->map_address(env, physical, prot, real_address, rw, access_type);
190 ret = TLBRET_BADADDR;
193 } else if (address < (int32_t)KSEG1_BASE) {
196 *physical = address - (int32_t)KSEG0_BASE;
197 *prot = PAGE_READ | PAGE_WRITE;
199 ret = TLBRET_BADADDR;
201 } else if (address < (int32_t)KSEG2_BASE) {
204 *physical = address - (int32_t)KSEG1_BASE;
205 *prot = PAGE_READ | PAGE_WRITE;
207 ret = TLBRET_BADADDR;
209 } else if (address < (int32_t)KSEG3_BASE) {
211 if (supervisor_mode || kernel_mode) {
212 ret = env->tlb->map_address(env, physical, prot, real_address, rw, access_type);
214 ret = TLBRET_BADADDR;
218 /* XXX: debug segment is not emulated */
220 ret = env->tlb->map_address(env, physical, prot, real_address, rw, access_type);
222 ret = TLBRET_BADADDR;
229 static void raise_mmu_exception(CPUMIPSState *env, target_ulong address,
230 int rw, int tlb_error)
232 CPUState *cs = CPU(mips_env_get_cpu(env));
233 int exception = 0, error_code = 0;
235 if (rw == MMU_INST_FETCH) {
236 error_code |= EXCP_INST_NOTAVAIL;
242 /* Reference to kernel address from user mode or supervisor mode */
243 /* Reference to supervisor address from user mode */
244 if (rw == MMU_DATA_STORE) {
245 exception = EXCP_AdES;
247 exception = EXCP_AdEL;
251 /* No TLB match for a mapped address */
252 if (rw == MMU_DATA_STORE) {
253 exception = EXCP_TLBS;
255 exception = EXCP_TLBL;
257 error_code |= EXCP_TLB_NOMATCH;
260 /* TLB match with no valid bit */
261 if (rw == MMU_DATA_STORE) {
262 exception = EXCP_TLBS;
264 exception = EXCP_TLBL;
268 /* TLB match but 'D' bit is cleared */
269 exception = EXCP_LTLBL;
272 /* Execute-Inhibit Exception */
273 if (env->CP0_PageGrain & (1 << CP0PG_IEC)) {
274 exception = EXCP_TLBXI;
276 exception = EXCP_TLBL;
280 /* Read-Inhibit Exception */
281 if (env->CP0_PageGrain & (1 << CP0PG_IEC)) {
282 exception = EXCP_TLBRI;
284 exception = EXCP_TLBL;
288 /* Raise exception */
289 env->CP0_BadVAddr = address;
290 env->CP0_Context = (env->CP0_Context & ~0x007fffff) |
291 ((address >> 9) & 0x007ffff0);
293 (env->CP0_EntryHi & 0xFF) | (address & (TARGET_PAGE_MASK << 1));
294 #if defined(TARGET_MIPS64)
295 env->CP0_EntryHi &= env->SEGMask;
296 env->CP0_XContext = (env->CP0_XContext & ((~0ULL) << (env->SEGBITS - 7))) |
297 ((address & 0xC00000000000ULL) >> (55 - env->SEGBITS)) |
298 ((address & ((1ULL << env->SEGBITS) - 1) & 0xFFFFFFFFFFFFE000ULL) >> 9);
300 cs->exception_index = exception;
301 env->error_code = error_code;
304 #if !defined(CONFIG_USER_ONLY)
305 hwaddr mips_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
307 MIPSCPU *cpu = MIPS_CPU(cs);
311 if (get_physical_address(&cpu->env, &phys_addr, &prot, addr, 0,
319 int mips_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int rw,
322 MIPSCPU *cpu = MIPS_CPU(cs);
323 CPUMIPSState *env = &cpu->env;
324 #if !defined(CONFIG_USER_ONLY)
332 log_cpu_state(cs, 0);
334 qemu_log_mask(CPU_LOG_MMU,
335 "%s pc " TARGET_FMT_lx " ad %" VADDR_PRIx " rw %d mmu_idx %d\n",
336 __func__, env->active_tc.PC, address, rw, mmu_idx);
339 #if !defined(CONFIG_USER_ONLY)
340 /* XXX: put correct access by using cpu_restore_state()
342 access_type = ACCESS_INT;
343 ret = get_physical_address(env, &physical, &prot,
344 address, rw, access_type);
345 qemu_log_mask(CPU_LOG_MMU,
346 "%s address=%" VADDR_PRIx " ret %d physical " TARGET_FMT_plx
348 __func__, address, ret, physical, prot);
349 if (ret == TLBRET_MATCH) {
350 tlb_set_page(cs, address & TARGET_PAGE_MASK,
351 physical & TARGET_PAGE_MASK, prot | PAGE_EXEC,
352 mmu_idx, TARGET_PAGE_SIZE);
357 raise_mmu_exception(env, address, rw, ret);
364 #if !defined(CONFIG_USER_ONLY)
365 hwaddr cpu_mips_translate_address(CPUMIPSState *env, target_ulong address, int rw)
373 access_type = ACCESS_INT;
374 ret = get_physical_address(env, &physical, &prot,
375 address, rw, access_type);
376 if (ret != TLBRET_MATCH) {
377 raise_mmu_exception(env, address, rw, ret);
384 static const char * const excp_names[EXCP_LAST + 1] = {
385 [EXCP_RESET] = "reset",
386 [EXCP_SRESET] = "soft reset",
387 [EXCP_DSS] = "debug single step",
388 [EXCP_DINT] = "debug interrupt",
389 [EXCP_NMI] = "non-maskable interrupt",
390 [EXCP_MCHECK] = "machine check",
391 [EXCP_EXT_INTERRUPT] = "interrupt",
392 [EXCP_DFWATCH] = "deferred watchpoint",
393 [EXCP_DIB] = "debug instruction breakpoint",
394 [EXCP_IWATCH] = "instruction fetch watchpoint",
395 [EXCP_AdEL] = "address error load",
396 [EXCP_AdES] = "address error store",
397 [EXCP_TLBF] = "TLB refill",
398 [EXCP_IBE] = "instruction bus error",
399 [EXCP_DBp] = "debug breakpoint",
400 [EXCP_SYSCALL] = "syscall",
401 [EXCP_BREAK] = "break",
402 [EXCP_CpU] = "coprocessor unusable",
403 [EXCP_RI] = "reserved instruction",
404 [EXCP_OVERFLOW] = "arithmetic overflow",
405 [EXCP_TRAP] = "trap",
406 [EXCP_FPE] = "floating point",
407 [EXCP_DDBS] = "debug data break store",
408 [EXCP_DWATCH] = "data watchpoint",
409 [EXCP_LTLBL] = "TLB modify",
410 [EXCP_TLBL] = "TLB load",
411 [EXCP_TLBS] = "TLB store",
412 [EXCP_DBE] = "data bus error",
413 [EXCP_DDBL] = "debug data break load",
414 [EXCP_THREAD] = "thread",
415 [EXCP_MDMX] = "MDMX",
416 [EXCP_C2E] = "precise coprocessor 2",
417 [EXCP_CACHE] = "cache error",
418 [EXCP_TLBXI] = "TLB execute-inhibit",
419 [EXCP_TLBRI] = "TLB read-inhibit",
420 [EXCP_MSADIS] = "MSA disabled",
421 [EXCP_MSAFPE] = "MSA floating point",
425 target_ulong exception_resume_pc (CPUMIPSState *env)
428 target_ulong isa_mode;
430 isa_mode = !!(env->hflags & MIPS_HFLAG_M16);
431 bad_pc = env->active_tc.PC | isa_mode;
432 if (env->hflags & MIPS_HFLAG_BMASK) {
433 /* If the exception was raised from a delay slot, come back to
435 bad_pc -= (env->hflags & MIPS_HFLAG_B16 ? 2 : 4);
441 #if !defined(CONFIG_USER_ONLY)
442 static void set_hflags_for_handler (CPUMIPSState *env)
444 /* Exception handlers are entered in 32-bit mode. */
445 env->hflags &= ~(MIPS_HFLAG_M16);
446 /* ...except that microMIPS lets you choose. */
447 if (env->insn_flags & ASE_MICROMIPS) {
448 env->hflags |= (!!(env->CP0_Config3
449 & (1 << CP0C3_ISA_ON_EXC))
450 << MIPS_HFLAG_M16_SHIFT);
454 static inline void set_badinstr_registers(CPUMIPSState *env)
456 if (env->hflags & MIPS_HFLAG_M16) {
457 /* TODO: add BadInstr support for microMIPS */
460 if (env->CP0_Config3 & (1 << CP0C3_BI)) {
461 env->CP0_BadInstr = cpu_ldl_code(env, env->active_tc.PC);
463 if ((env->CP0_Config3 & (1 << CP0C3_BP)) &&
464 (env->hflags & MIPS_HFLAG_BMASK)) {
465 env->CP0_BadInstrP = cpu_ldl_code(env, env->active_tc.PC - 4);
470 void mips_cpu_do_interrupt(CPUState *cs)
472 #if !defined(CONFIG_USER_ONLY)
473 MIPSCPU *cpu = MIPS_CPU(cs);
474 CPUMIPSState *env = &cpu->env;
475 bool update_badinstr = 0;
480 if (qemu_loglevel_mask(CPU_LOG_INT)
481 && cs->exception_index != EXCP_EXT_INTERRUPT) {
482 if (cs->exception_index < 0 || cs->exception_index > EXCP_LAST) {
485 name = excp_names[cs->exception_index];
488 qemu_log("%s enter: PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx
490 __func__, env->active_tc.PC, env->CP0_EPC, name);
492 if (cs->exception_index == EXCP_EXT_INTERRUPT &&
493 (env->hflags & MIPS_HFLAG_DM)) {
494 cs->exception_index = EXCP_DINT;
497 switch (cs->exception_index) {
499 env->CP0_Debug |= 1 << CP0DB_DSS;
500 /* Debug single step cannot be raised inside a delay slot and
501 resume will always occur on the next instruction
502 (but we assume the pc has always been updated during
503 code translation). */
504 env->CP0_DEPC = env->active_tc.PC | !!(env->hflags & MIPS_HFLAG_M16);
505 goto enter_debug_mode;
507 env->CP0_Debug |= 1 << CP0DB_DINT;
510 env->CP0_Debug |= 1 << CP0DB_DIB;
513 env->CP0_Debug |= 1 << CP0DB_DBp;
516 env->CP0_Debug |= 1 << CP0DB_DDBS;
519 env->CP0_Debug |= 1 << CP0DB_DDBL;
521 env->CP0_DEPC = exception_resume_pc(env);
522 env->hflags &= ~MIPS_HFLAG_BMASK;
524 if (env->insn_flags & ISA_MIPS3) {
525 env->hflags |= MIPS_HFLAG_64;
527 env->hflags |= MIPS_HFLAG_DM | MIPS_HFLAG_CP0;
528 env->hflags &= ~(MIPS_HFLAG_KSU);
529 /* EJTAG probe trap enable is not implemented... */
530 if (!(env->CP0_Status & (1 << CP0St_EXL)))
531 env->CP0_Cause &= ~(1U << CP0Ca_BD);
532 env->active_tc.PC = (int32_t)0xBFC00480;
533 set_hflags_for_handler(env);
539 env->CP0_Status |= (1 << CP0St_SR);
540 memset(env->CP0_WatchLo, 0, sizeof(*env->CP0_WatchLo));
543 env->CP0_Status |= (1 << CP0St_NMI);
545 env->CP0_ErrorEPC = exception_resume_pc(env);
546 env->hflags &= ~MIPS_HFLAG_BMASK;
547 env->CP0_Status |= (1 << CP0St_ERL) | (1 << CP0St_BEV);
548 if (env->insn_flags & ISA_MIPS3) {
549 env->hflags |= MIPS_HFLAG_64;
551 env->hflags |= MIPS_HFLAG_CP0;
552 env->hflags &= ~(MIPS_HFLAG_KSU);
553 if (!(env->CP0_Status & (1 << CP0St_EXL)))
554 env->CP0_Cause &= ~(1U << CP0Ca_BD);
555 env->active_tc.PC = (int32_t)0xBFC00000;
556 set_hflags_for_handler(env);
558 case EXCP_EXT_INTERRUPT:
560 if (env->CP0_Cause & (1 << CP0Ca_IV)) {
561 uint32_t spacing = (env->CP0_IntCtl >> CP0IntCtl_VS) & 0x1f;
563 if ((env->CP0_Status & (1 << CP0St_BEV)) || spacing == 0) {
567 uint32_t pending = (env->CP0_Cause & CP0Ca_IP_mask) >> CP0Ca_IP;
569 if (env->CP0_Config3 & (1 << CP0C3_VEIC)) {
570 /* For VEIC mode, the external interrupt controller feeds
571 * the vector through the CP0Cause IP lines. */
574 /* Vectored Interrupts
575 * Mask with Status.IM7-IM0 to get enabled interrupts. */
576 pending &= (env->CP0_Status >> CP0St_IM) & 0xff;
577 /* Find the highest-priority interrupt. */
578 while (pending >>= 1) {
582 offset = 0x200 + (vector * (spacing << 5));
588 update_badinstr = !(env->error_code & EXCP_INST_NOTAVAIL);
592 update_badinstr = !(env->error_code & EXCP_INST_NOTAVAIL);
593 if ((env->error_code & EXCP_TLB_NOMATCH) &&
594 !(env->CP0_Status & (1 << CP0St_EXL))) {
595 #if defined(TARGET_MIPS64)
596 int R = env->CP0_BadVAddr >> 62;
597 int UX = (env->CP0_Status & (1 << CP0St_UX)) != 0;
598 int SX = (env->CP0_Status & (1 << CP0St_SX)) != 0;
599 int KX = (env->CP0_Status & (1 << CP0St_KX)) != 0;
601 if (((R == 0 && UX) || (R == 1 && SX) || (R == 3 && KX)) &&
602 (!(env->insn_flags & (INSN_LOONGSON2E | INSN_LOONGSON2F))))
612 if ((env->error_code & EXCP_TLB_NOMATCH) &&
613 !(env->CP0_Status & (1 << CP0St_EXL))) {
614 #if defined(TARGET_MIPS64)
615 int R = env->CP0_BadVAddr >> 62;
616 int UX = (env->CP0_Status & (1 << CP0St_UX)) != 0;
617 int SX = (env->CP0_Status & (1 << CP0St_SX)) != 0;
618 int KX = (env->CP0_Status & (1 << CP0St_KX)) != 0;
620 if (((R == 0 && UX) || (R == 1 && SX) || (R == 3 && KX)) &&
621 (!(env->insn_flags & (INSN_LOONGSON2E | INSN_LOONGSON2F))))
630 update_badinstr = !(env->error_code & EXCP_INST_NOTAVAIL);
657 env->CP0_Cause = (env->CP0_Cause & ~(0x3 << CP0Ca_CE)) |
658 (env->error_code << CP0Ca_CE);
695 /* XXX: TODO: manage deferred watch exceptions */
708 if (env->CP0_Status & (1 << CP0St_BEV)) {
714 if (!(env->CP0_Status & (1 << CP0St_EXL))) {
715 env->CP0_EPC = exception_resume_pc(env);
716 if (update_badinstr) {
717 set_badinstr_registers(env);
719 if (env->hflags & MIPS_HFLAG_BMASK) {
720 env->CP0_Cause |= (1U << CP0Ca_BD);
722 env->CP0_Cause &= ~(1U << CP0Ca_BD);
724 env->CP0_Status |= (1 << CP0St_EXL);
725 if (env->insn_flags & ISA_MIPS3) {
726 env->hflags |= MIPS_HFLAG_64;
728 env->hflags |= MIPS_HFLAG_CP0;
729 env->hflags &= ~(MIPS_HFLAG_KSU);
731 env->hflags &= ~MIPS_HFLAG_BMASK;
732 if (env->CP0_Status & (1 << CP0St_BEV)) {
733 env->active_tc.PC = (int32_t)0xBFC00200;
735 env->active_tc.PC = (int32_t)(env->CP0_EBase & ~0x3ff);
737 env->active_tc.PC += offset;
738 set_hflags_for_handler(env);
739 env->CP0_Cause = (env->CP0_Cause & ~(0x1f << CP0Ca_EC)) | (cause << CP0Ca_EC);
744 if (qemu_loglevel_mask(CPU_LOG_INT)
745 && cs->exception_index != EXCP_EXT_INTERRUPT) {
746 qemu_log("%s: PC " TARGET_FMT_lx " EPC " TARGET_FMT_lx " cause %d\n"
747 " S %08x C %08x A " TARGET_FMT_lx " D " TARGET_FMT_lx "\n",
748 __func__, env->active_tc.PC, env->CP0_EPC, cause,
749 env->CP0_Status, env->CP0_Cause, env->CP0_BadVAddr,
753 cs->exception_index = EXCP_NONE;
756 bool mips_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
758 if (interrupt_request & CPU_INTERRUPT_HARD) {
759 MIPSCPU *cpu = MIPS_CPU(cs);
760 CPUMIPSState *env = &cpu->env;
762 if (cpu_mips_hw_interrupts_pending(env)) {
764 cs->exception_index = EXCP_EXT_INTERRUPT;
766 mips_cpu_do_interrupt(cs);
773 #if !defined(CONFIG_USER_ONLY)
774 void r4k_invalidate_tlb (CPUMIPSState *env, int idx, int use_extra)
776 MIPSCPU *cpu = mips_env_get_cpu(env);
781 uint8_t ASID = env->CP0_EntryHi & 0xFF;
784 tlb = &env->tlb->mmu.r4k.tlb[idx];
785 /* The qemu TLB is flushed when the ASID changes, so no need to
786 flush these entries again. */
787 if (tlb->G == 0 && tlb->ASID != ASID) {
791 if (use_extra && env->tlb->tlb_in_use < MIPS_TLB_MAX) {
792 /* For tlbwr, we can shadow the discarded entry into
793 a new (fake) TLB entry, as long as the guest can not
794 tell that it's there. */
795 env->tlb->mmu.r4k.tlb[env->tlb->tlb_in_use] = *tlb;
796 env->tlb->tlb_in_use++;
800 /* 1k pages are not supported. */
801 mask = tlb->PageMask | ~(TARGET_PAGE_MASK << 1);
804 addr = tlb->VPN & ~mask;
805 #if defined(TARGET_MIPS64)
806 if (addr >= (0xFFFFFFFF80000000ULL & env->SEGMask)) {
807 addr |= 0x3FFFFF0000000000ULL;
810 end = addr | (mask >> 1);
812 tlb_flush_page(cs, addr);
813 addr += TARGET_PAGE_SIZE;
818 addr = (tlb->VPN & ~mask) | ((mask >> 1) + 1);
819 #if defined(TARGET_MIPS64)
820 if (addr >= (0xFFFFFFFF80000000ULL & env->SEGMask)) {
821 addr |= 0x3FFFFF0000000000ULL;
825 while (addr - 1 < end) {
826 tlb_flush_page(cs, addr);
827 addr += TARGET_PAGE_SIZE;