From 3e1eafa244dc2ea6a1d8de6e841370c83c362dda Mon Sep 17 00:00:00 2001 From: bunnei Date: Thu, 15 May 2014 22:54:17 -0400 Subject: - moved mmu to arm/interpreter folder - added initial VFP code from skyeye --- src/core/arm/interpreter/mmu/arm1176jzf_s_mmu.cpp | 1132 +++++++++++++++++++++ src/core/arm/interpreter/mmu/arm1176jzf_s_mmu.h | 37 + src/core/arm/interpreter/mmu/cache.h | 168 +++ src/core/arm/interpreter/mmu/rb.h | 55 + src/core/arm/interpreter/mmu/tlb.h | 94 ++ src/core/arm/interpreter/mmu/wb.h | 63 ++ 6 files changed, 1549 insertions(+) create mode 100644 src/core/arm/interpreter/mmu/arm1176jzf_s_mmu.cpp create mode 100644 src/core/arm/interpreter/mmu/arm1176jzf_s_mmu.h create mode 100644 src/core/arm/interpreter/mmu/cache.h create mode 100644 src/core/arm/interpreter/mmu/rb.h create mode 100644 src/core/arm/interpreter/mmu/tlb.h create mode 100644 src/core/arm/interpreter/mmu/wb.h (limited to 'src/core/arm/interpreter/mmu') diff --git a/src/core/arm/interpreter/mmu/arm1176jzf_s_mmu.cpp b/src/core/arm/interpreter/mmu/arm1176jzf_s_mmu.cpp new file mode 100644 index 000000000..a32f076b9 --- /dev/null +++ b/src/core/arm/interpreter/mmu/arm1176jzf_s_mmu.cpp @@ -0,0 +1,1132 @@ +/* + arm1176jzf_s_mmu.c - ARM920T Memory Management Unit emulation. + Copyright (C) 2003 Skyeye Develop Group + for help please send mail to + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#include +#include +#include + +#include "core/mem_map.h" + +#include "core/arm/interpreter/skyeye_defs.h" + +#include "core/arm/interpreter/armdefs.h" +//#include "bank_defs.h" +#if 0 +#define TLB_SIZE 1024 * 1024 +#define ASID 255 +static uint32_t tlb_entry_array[TLB_SIZE][ASID]; +static inline void invalidate_all_tlb(ARMul_State *state){ + memset(&tlb_entry_array[0], 0xFF, sizeof(uint32_t) * TLB_SIZE * ASID); +} +static inline void invalidate_by_mva(ARMul_State *state, ARMword va){ + memset(&tlb_entry_array[va >> 12][va & 0xFF], 0xFF, sizeof(uint32_t)); + return; +} +static inline void invalidate_by_asid(ARMul_State *state, ARMword asid){ + int i; + for(i = 0; i < TLB_SIZE; i++) + memset(&tlb_entry_array[i][asid & 0xFF], 0xFF, sizeof(uint32_t)); + return; +} + +static uint32_t get_phys_page(ARMul_State* state, ARMword va){ + uint32_t phys_page = tlb_entry_array[va >> 12][state->mmu.context_id & 0xFF]; + //printf("In %s, for va=0x%x, page=0x%x\n", __func__, va, phys_page); + return phys_page; +} + +static inline void insert_tlb(ARMul_State* state, ARMword va, ARMword pa){ + //printf("In %s, insert va=0x%x, pa=0x%x\n", __FUNCTION__, va, pa); + //printf("In %s, insert va=0x%x, va>>12=0x%x, pa=0x%x, pa>>12=0x%x\n", __FUNCTION__, va, va >> 12, pa, pa >> 12); + tlb_entry_array[va >> 12][state->mmu.context_id & 0xFF] = pa >> 12; + + return; +} +#endif +#define BANK0_START 0x50000000 +static void* mem_ptr = NULL; + +static int exclusive_detect(ARMul_State* state, ARMword addr){ + #if 0 + for(int i = 0; i < 128; i++){ + if(state->exclusive_tag_array[i] == addr) + return 0; + } + #endif + if(state->exclusive_tag_array[0] == addr) + return 0; + else + return -1; +} + +static void add_exclusive_addr(ARMul_State* state, ARMword addr){ + #if 0 + for(int i = 0; i < 128; i++){ + if(state->exclusive_tag_array[i] == 0xffffffff){ + state->exclusive_tag_array[i] = addr; + //printf("In %s, add addr 0x%x\n", __func__, addr); + return; + } + } + printf("In %s ,can not monitor the addr, out of array\n", __FUNCTION__); + #endif + state->exclusive_tag_array[0] = addr; + return; +} + +static void remove_exclusive(ARMul_State* state, ARMword addr){ + #if 0 + int i; + for(i = 0; i < 128; i++){ + if(state->exclusive_tag_array[i] == addr){ + state->exclusive_tag_array[i] = 0xffffffff; + //printf("In %s, remove addr 0x%x\n", __func__, addr); + return; + } + } + #endif + state->exclusive_tag_array[0] = 0xFFFFFFFF; +} + +/* This function encodes table 8-2 Interpreting AP bits, + returning non-zero if access is allowed. */ +static int +check_perms (ARMul_State *state, int ap, int read) +{ + int s, r, user; + + s = state->mmu.control & CONTROL_SYSTEM; + r = state->mmu.control & CONTROL_ROM; + /* chy 2006-02-15 , should consider system mode, don't conside 26bit mode */ +// printf("ap is %x, user is %x, s is %x, read is %x\n", ap, user, s, read); +// printf("mode is %x\n", state->Mode); + user = (state->Mode == USER32MODE) || (state->Mode == USER26MODE) || (state->Mode == SYSTEM32MODE); + + switch (ap) { + case 0: + return read && ((s && !user) || r); + case 1: + return !user; + case 2: + return read || !user; + case 3: + return 1; + } + return 0; +} + +#if 0 +fault_t +check_access (ARMul_State *state, ARMword virt_addr, tlb_entry_t *tlb, + int read) +{ + int access; + + state->mmu.last_domain = tlb->domain; + access = (state->mmu.domain_access_control >> (tlb->domain * 2)) & 3; + if ((access == 0) || (access == 2)) { + /* It's unclear from the documentation whether this + should always raise a section domain fault, or if + it should be a page domain fault in the case of an + L1 that describes a page table. In the ARM710T + datasheets, "Figure 8-9: Sequence for checking faults" + seems to indicate the former, while "Table 8-4: Priority + encoding of fault status" gives a value for FS[3210] in + the event of a domain fault for a page. Hmm. */ + return SECTION_DOMAIN_FAULT; + } + if (access == 1) { + /* client access - check perms */ + int subpage, ap; +#if 0 + switch (tlb->mapping) { + /*ks 2004-05-09 + * only for XScale + * Extend Small Page(ESP) Format + * 31-12 bits the base addr of ESP + * 11-10 bits SBZ + * 9-6 bits TEX + * 5-4 bits AP + * 3 bit C + * 2 bit B + * 1-0 bits 11 + * */ + case TLB_ESMALLPAGE: /* xj */ + subpage = 0; + /* printf("TLB_ESMALLPAGE virt_addr=0x%x \n",virt_addr ); */ + break; + + case TLB_TINYPAGE: + subpage = 0; + /* printf("TLB_TINYPAGE virt_addr=0x%x \n",virt_addr ); */ + break; + + case TLB_SMALLPAGE: + subpage = (virt_addr >> 10) & 3; + break; + case TLB_LARGEPAGE: + subpage = (virt_addr >> 14) & 3; + break; + case TLB_SECTION: + subpage = 3; + break; + default: + assert (0); + subpage = 0; /* cleans a warning */ + } + ap = (tlb->perms >> (subpage * 2 + 4)) & 3; + if (!check_perms (state, ap, read)) { + if (tlb->mapping == TLB_SECTION) { + return SECTION_PERMISSION_FAULT; + } else { + return SUBPAGE_PERMISSION_FAULT; + } + } +#endif + } else { /* access == 3 */ + /* manager access - don't check perms */ + } + return NO_FAULT; +} +#endif + +#if 0 +fault_t +mmu_translate (ARMul_State *state, ARMword virt_addr, ARMword *phys_addr) +#endif + +/* ap: AP bits value. + * sop: section or page description 0:section 1:page + */ +fault_t +mmu_translate (ARMul_State *state, ARMword virt_addr, ARMword *phys_addr, int *ap, int *sop) +{ + { + /* walk the translation tables */ + ARMword l1addr, l1desc; + if (state->mmu.translation_table_ctrl && virt_addr << state->mmu.translation_table_ctrl >> (32 - state->mmu.translation_table_ctrl - 1)) { + l1addr = state->mmu.translation_table_base1; + l1addr = (((l1addr >> 14) << 14) | (virt_addr >> 18)) & ~3; + } else { + l1addr = state->mmu.translation_table_base0; + l1addr = (((l1addr >> (14 - state->mmu.translation_table_ctrl)) << (14 - state->mmu.translation_table_ctrl)) | (virt_addr << state->mmu.translation_table_ctrl) >> (18 + state->mmu.translation_table_ctrl)) & ~3; + } + + /* l1desc = mem_read_word (state, l1addr); */ + if (state->space.conf_obj != NULL) + state->space.read(state->space.conf_obj, l1addr, &l1desc, 4); + else + l1desc = Memory::Read32(l1addr); //mem_read_raw(32, l1addr, &l1desc); + + #if 0 + if (virt_addr == 0xc000d2bc) { + printf("mmu_control is %x\n", state->mmu.translation_table_ctrl); + printf("mmu_table_0 is %x\n", state->mmu.translation_table_base0); + printf("mmu_table_1 is %x\n", state->mmu.translation_table_base1); + printf("l1addr is %x l1desc is %x\n", l1addr, l1desc); + // exit(-1); + } + #endif + switch (l1desc & 3) { + case 0: + case 3: + /* + * according to Figure 3-9 Sequence for checking faults in arm manual, + * section translation fault should be returned here. + */ + { + return SECTION_TRANSLATION_FAULT; + } + case 1: + /* coarse page table */ + { + ARMword l2addr, l2desc; + + + l2addr = l1desc & 0xFFFFFC00; + l2addr = (l2addr | + ((virt_addr & 0x000FF000) >> 10)) & + ~3; + if(state->space.conf_obj != NULL) + state->space.read(state->space.conf_obj, l2addr, &l2desc, 4); + else + l2desc = Memory::Read32(l2addr); //mem_read_raw(32, l2addr, &l2desc); + + /* chy 2003-09-02 for xscale */ + *ap = (l2desc >> 4) & 0x3; + *sop = 1; /* page */ + + switch (l2desc & 3) { + case 0: + return PAGE_TRANSLATION_FAULT; + break; + case 1: + *phys_addr = (l2desc & 0xFFFF0000) | (virt_addr & 0x0000FFFF); + break; + case 2: + case 3: + *phys_addr = (l2desc & 0xFFFFF000) | (virt_addr & 0x00000FFF); + break; + + } + } + break; + case 2: + /* section */ + + *ap = (l1desc >> 10) & 3; + *sop = 0; /* section */ + #if 0 + if (virt_addr == 0xc000d2bc) { + printf("mmu_control is %x\n", state->mmu.translation_table_ctrl); + printf("mmu_table_0 is %x\n", state->mmu.translation_table_base0); + printf("mmu_table_1 is %x\n", state->mmu.translation_table_base1); + printf("l1addr is %x l1desc is %x\n", l1addr, l1desc); +// printf("l2addr is %x l2desc is %x\n", l2addr, l2desc); + printf("ap is %x, sop is %x\n", *ap, *sop); + printf("mode is %d\n", state->Mode); +// exit(-1); + } + #endif + + if (l1desc & 0x30000) + *phys_addr = (l1desc & 0xFF000000) | (virt_addr & 0x00FFFFFF); + else + *phys_addr = (l1desc & 0xFFF00000) | (virt_addr & 0x000FFFFF); + break; + } + } + return NO_FAULT; +} + + +static fault_t arm1176jzf_s_mmu_write (ARMul_State *state, ARMword va, + ARMword data, ARMword datatype); +static fault_t arm1176jzf_s_mmu_read (ARMul_State *state, ARMword va, + ARMword *data, ARMword datatype); + +int +arm1176jzf_s_mmu_init (ARMul_State *state) +{ + state->mmu.control = 0x50078; + state->mmu.translation_table_base = 0xDEADC0DE; + state->mmu.domain_access_control = 0xDEADC0DE; + state->mmu.fault_status = 0; + state->mmu.fault_address = 0; + state->mmu.process_id = 0; + state->mmu.context_id = 0; + state->mmu.thread_uro_id = 0; + //invalidate_all_tlb(state); + + return No_exp; +} + +void +arm1176jzf_s_mmu_exit (ARMul_State *state) +{ +} + + +static fault_t +arm1176jzf_s_mmu_load_instr (ARMul_State *state, ARMword va, ARMword *instr) +{ + fault_t fault; + int c; /* cache bit */ + ARMword pa; /* physical addr */ + ARMword perm; /* physical addr access permissions */ + int ap, sop; + + static int debug_count = 0; /* used for debug */ + + //DEBUG_LOG(ARM11, "va = %x\n", va); + + va = mmu_pid_va_map (va); + if (MMU_Enabled) { +// printf("MMU enabled.\n"); +// sleep(1); + /* align check */ + if ((va & (WORD_SIZE - 1)) && MMU_Aligned) { + DEBUG_LOG(ARM11, "align\n"); + return ALIGNMENT_FAULT; + } else + va &= ~(WORD_SIZE - 1); + + /* translate tlb */ + fault = mmu_translate (state, va, &pa, &ap, &sop); + if (fault) { + DEBUG_LOG(ARM11, "translate\n"); + printf("va=0x%x, icounter=%lld, fault=%d\n", va, state->NumInstrs, fault); + return fault; + } + + + /* no tlb, only check permission */ + if (!check_perms(state, ap, 1)) { + if (sop == 0) { + return SECTION_PERMISSION_FAULT; + } else { + return SUBPAGE_PERMISSION_FAULT; + } + } + +#if 0 + /*check access */ + fault = check_access (state, va, tlb, 1); + if (fault) { + DEBUG_LOG(ARM11, "check_fault\n"); + return fault; + } +#endif + } + + /*if MMU disabled or C flag is set alloc cache */ + if (MMU_Disabled) { +// printf("MMU disabled.\n"); +// sleep(1); + pa = va; + } + if(state->space.conf_obj == NULL) + state->space.read(state->space.conf_obj, pa, instr, 4); + else + *instr = Memory::Read32(pa); //mem_read_raw(32, pa, instr); + + return NO_FAULT; +} + +static fault_t +arm1176jzf_s_mmu_read_byte (ARMul_State *state, ARMword virt_addr, ARMword *data) +{ + /* ARMword temp,offset; */ + fault_t fault; + fault = arm1176jzf_s_mmu_read (state, virt_addr, data, ARM_BYTE_TYPE); + return fault; +} + +static fault_t +arm1176jzf_s_mmu_read_halfword (ARMul_State *state, ARMword virt_addr, + ARMword *data) +{ + /* ARMword temp,offset; */ + fault_t fault; + fault = arm1176jzf_s_mmu_read (state, virt_addr, data, ARM_HALFWORD_TYPE); + return fault; +} + +static fault_t +arm1176jzf_s_mmu_read_word (ARMul_State *state, ARMword virt_addr, ARMword *data) +{ + return arm1176jzf_s_mmu_read (state, virt_addr, data, ARM_WORD_TYPE); +} + +static fault_t +arm1176jzf_s_mmu_read (ARMul_State *state, ARMword va, ARMword *data, + ARMword datatype) +{ + fault_t fault; + ARMword pa, real_va, temp, offset; + ARMword perm; /* physical addr access permissions */ + int ap, sop; + + //DEBUG_LOG(ARM11, "va = %x\n", va); + + va = mmu_pid_va_map (va); + real_va = va; + /* if MMU disabled, memory_read */ + if (MMU_Disabled) { +// printf("MMU disabled cpu_id:%x addr:%x.\n", state->mmu.process_id, va); +// sleep(1); + + /* *data = mem_read_word(state, va); */ + if (datatype == ARM_BYTE_TYPE) + /* *data = mem_read_byte (state, va); */ + if(state->space.conf_obj != NULL) + state->space.read(state->space.conf_obj, va, data, 1); + else + *data = Memory::Read8(va); //mem_read_raw(8, va, data); + else if (datatype == ARM_HALFWORD_TYPE) + /* *data = mem_read_halfword (state, va); */ + if(state->space.conf_obj != NULL) + state->space.read(state->space.conf_obj, va, data, 2); + else + *data = Memory::Read16(va); //mem_read_raw(16, va, data); + else if (datatype == ARM_WORD_TYPE) + /* *data = mem_read_word (state, va); */ + if(state->space.conf_obj != NULL) + state->space.read(state->space.conf_obj, va, data, 4); + else + *data = Memory::Read32(va); //mem_read_raw(32, va, data); + else { + ERROR_LOG(ARM11, "SKYEYE:1 arm1176jzf_s_mmu_read error: unknown data type %d\n", datatype); + } + + return NO_FAULT; + } +// printf("MMU enabled.\n"); +// sleep(1); + + /* align check */ + if (((va & 3) && (datatype == ARM_WORD_TYPE) && MMU_Aligned) || + ((va & 1) && (datatype == ARM_HALFWORD_TYPE) && MMU_Aligned)) { + DEBUG_LOG(ARM11, "align\n"); + return ALIGNMENT_FAULT; + } + + /* va &= ~(WORD_SIZE - 1); */ + #if 0 + uint32_t page_base; + page_base = get_phys_page(state, va); + if((page_base & 0xFFF) == 0){ + pa = (page_base << 12) | (va & 0xFFF); + goto skip_translation; + } + #endif + /*translate va to tlb */ +#if 0 + fault = mmu_translate (state, va, ARM920T_D_TLB (), &tlb); +#endif + fault = mmu_translate (state, va, &pa, &ap, &sop); +#if 0 + if(va ==0xbebb1774 || state->Reg[15] == 0x400ff594){ + //printf("In %s, current=0x%x. mode is %x, pc=0x%x\n", __FUNCTION__, state->CurrInstr, state->Mode, state->Reg[15]); + printf("In %s, ap is %d, sop is %d, va=0x%x, pa=0x%x, fault=%d, data=0x%x\n", __FUNCTION__, ap, sop, va, pa, fault, data); + int i; + for(i = 0; i < 16; i++) + printf("Reg[%d]=0x%x\t", i, state->Reg[i]); + printf("\n"); + } +#endif + if (fault) { + DEBUG_LOG(ARM11, "translate\n"); + //printf("mmu read fault at %x\n", va); + //printf("fault is %d\n", fault); + return fault; + } +// printf("va is %x pa is %x\n", va, pa); + + /* no tlb, only check permission */ + if (!check_perms(state, ap, 1)) { + if (sop == 0) { + return SECTION_PERMISSION_FAULT; + } else { + return SUBPAGE_PERMISSION_FAULT; + } + } +#if 0 + /*check access permission */ + fault = check_access (state, va, tlb, 1); + if (fault) + return fault; +#endif + + //insert_tlb(state, va, pa); +skip_translation: + /* *data = mem_read_word(state, pa); */ + if (datatype == ARM_BYTE_TYPE) { + /* *data = mem_read_byte (state, pa | (real_va & 3)); */ + if(state->space.conf_obj != NULL) + state->space.read(state->space.conf_obj, pa | (real_va & 3), data, 1); + else + *data = Memory::Read8(pa | (real_va & 3)); //mem_read_raw(8, pa | (real_va & 3), data); + /* mem_read_raw(32, pa | (real_va & 3), data); */ + } else if (datatype == ARM_HALFWORD_TYPE) { + /* *data = mem_read_halfword (state, pa | (real_va & 2)); */ + if(state->space.conf_obj != NULL) + state->space.read(state->space.conf_obj, pa | (real_va & 3), data, 2); + else + *data = Memory::Read16(pa | (real_va & 3)); //mem_read_raw(16, pa | (real_va & 3), data); + /* mem_read_raw(32, pa | (real_va & 2), data); */ + } else if (datatype == ARM_WORD_TYPE) + /* *data = mem_read_word (state, pa); */ + if(state->space.conf_obj != NULL) + state->space.read(state->space.conf_obj, pa , data, 4); + else + *data = Memory::Read32(pa); //mem_read_raw(32, pa, data); + else { + ERROR_LOG(ARM11, "SKYEYE:2 arm1176jzf_s_mmu_read error: unknown data type %d\n", datatype); + } + if(0 && (va == 0x2869c)){ + printf("In %s, pa is %x va=0x%x, value is %x pc %x, instr=0x%x\n", __FUNCTION__, pa, va, *data, state->Reg[15], state->CurrInstr); + } + + /* ldrex or ldrexb */ + if(((state->CurrInstr & 0x0FF000F0) == 0x01900090) || + ((state->CurrInstr & 0x0FF000F0) == 0x01d00090)){ + int rn = (state->CurrInstr & 0xF0000) >> 16; + if(state->Reg[rn] == va){ + add_exclusive_addr(state, pa | (real_va & 3)); + state->exclusive_access_state = 1; + } + } +#if 0 + if (state->pc == 0xc011a868) { + printf("pa is %x value is %x size is %x\n", pa, data, datatype); + printf("icounter is %lld\n", state->NumInstrs); +// exit(-1); + } +#endif + + return NO_FAULT; +} + + +static fault_t +arm1176jzf_s_mmu_write_byte (ARMul_State *state, ARMword virt_addr, ARMword data) +{ + return arm1176jzf_s_mmu_write (state, virt_addr, data, ARM_BYTE_TYPE); +} + +static fault_t +arm1176jzf_s_mmu_write_halfword (ARMul_State *state, ARMword virt_addr, + ARMword data) +{ + return arm1176jzf_s_mmu_write (state, virt_addr, data, ARM_HALFWORD_TYPE); +} + +static fault_t +arm1176jzf_s_mmu_write_word (ARMul_State *state, ARMword virt_addr, ARMword data) +{ + return arm1176jzf_s_mmu_write (state, virt_addr, data, ARM_WORD_TYPE); +} + + + +static fault_t +arm1176jzf_s_mmu_write (ARMul_State *state, ARMword va, ARMword data, + ARMword datatype) +{ + int b; + ARMword pa, real_va; + ARMword perm; /* physical addr access permissions */ + fault_t fault; + int ap, sop; + +#if 0 + /8 for sky_printk debugger.*/ + if (va == 0xffffffff) { + putchar((char)data); + return 0; + } + if (va == 0xBfffffff) { + putchar((char)data); + return 0; + } +#endif + + //DEBUG_LOG(ARM11, "va = %x, val = %x\n", va, data); + va = mmu_pid_va_map (va); + real_va = va; + + if (MMU_Disabled) { + /* mem_write_word(state, va, data); */ + if (datatype == ARM_BYTE_TYPE) + /* mem_write_byte (state, va, data); */ + if(state->space.conf_obj != NULL) + state->space.write(state->space.conf_obj, va, &data, 1); + else + Memory::Write8(va, data); + else if (datatype == ARM_HALFWORD_TYPE) + /* mem_write_halfword (state, va, data); */ + if(state->space.conf_obj != NULL) + state->space.write(state->space.conf_obj, va, &data, 2); + else + Memory::Write16(va, data); + else if (datatype == ARM_WORD_TYPE) + /* mem_write_word (state, va, data); */ + if(state->space.conf_obj != NULL) + state->space.write(state->space.conf_obj, va, &data, 4); + else + Memory::Write32(va, data); + else { + ERROR_LOG (ARM11, "SKYEYE:1 arm1176jzf_s_mmu_write error: unknown data type %d\n", datatype); + } + goto finished_write; + //return 0; + } + /*align check */ + /* if ((va & (WORD_SIZE - 1)) && MMU_Aligned){ */ + if (((va & 3) && (datatype == ARM_WORD_TYPE) && MMU_Aligned) || + ((va & 1) && (datatype == ARM_HALFWORD_TYPE) && MMU_Aligned)) { + DEBUG_LOG(ARM11, "align\n"); + return ALIGNMENT_FAULT; + } + va &= ~(WORD_SIZE - 1); + #if 0 + uint32_t page_base; + page_base = get_phys_page(state, va); + if((page_base & 0xFFF) == 0){ + pa = (page_base << 12) | (va & 0xFFF); + goto skip_translation; + } + #endif + /*tlb translate */ + fault = mmu_translate (state, va, &pa, &ap, &sop); +#if 0 + if(va ==0xbebb1774 || state->Reg[15] == 0x40102334){ + //printf("In %s, current=0x%x. mode is %x, pc=0x%x\n", __FUNCTION__, state->CurrInstr, state->Mode, state->Reg[15]); + printf("In %s, ap is %d, sop is %d, va=0x%x, pa=0x%x, fault=%d, data=0x%x\n", __FUNCTION__, ap, sop, va, pa, fault, data); + int i; + for(i = 0; i < 16; i++) + printf("Reg[%d]=0x%x\t", i, state->Reg[i]); + printf("\n"); + } +#endif + if (fault) { + DEBUG_LOG(ARM11, "translate\n"); + //printf("mmu write fault at %x\n", va); + return fault; + } +// printf("va is %x pa is %x\n", va, pa); + + /* no tlb, only check permission */ + if (!check_perms(state, ap, 0)) { + if (sop == 0) { + return SECTION_PERMISSION_FAULT; + } else { + return SUBPAGE_PERMISSION_FAULT; + } + } + +#if 0 + /* tlb check access */ + fault = check_access (state, va, tlb, 0); + if (fault) { + DEBUG_LOG(ARM11, "check_access\n"); + return fault; + } +#endif +#if 0 + if (pa <= 0x502860ff && (pa + 1 << datatype) > 0x502860ff) { + printf("pa is %x value is %x size is %x\n", pa, data, datatype); + } +#endif +#if 0 + if (state->pc == 0xc011a878) { + printf("write pa is %x value is %x size is %x\n", pa, data, datatype); + printf("icounter is %lld\n", state->NumInstrs); + exit(-1); + } +#endif + //insert_tlb(state, va, pa); +skip_translation: + /* strex */ + if(((state->CurrInstr & 0x0FF000F0) == 0x01800090) || + ((state->CurrInstr & 0x0FF000F0) == 0x01c00090)){ + /* failed , the address is monitord now. */ + int dest_reg = (state->CurrInstr & 0xF000) >> 12; + if((exclusive_detect(state, pa | (real_va & 3)) == 0) && (state->exclusive_access_state == 1)){ + remove_exclusive(state, pa | (real_va & 3)); + state->Reg[dest_reg] = 0; + state->exclusive_access_state = 0; + } + else{ + state->Reg[dest_reg] = 1; + //printf("In %s, try to strex a monitored address 0x%x\n", __FUNCTION__, pa); + return NO_FAULT; + } + } + + if (datatype == ARM_BYTE_TYPE) { + /* mem_write_byte (state, + (pa | (real_va & 3)), + data); + */ + if(state->space.conf_obj != NULL) + state->space.write(state->space.conf_obj, (pa | (real_va & 3)), &data, 1); + else + Memory::Write8((pa | (real_va & 3)), data); + + } else if (datatype == ARM_HALFWORD_TYPE) + /* mem_write_halfword (state, + (pa | + (real_va & 2)), + data); + */ + if(state->space.conf_obj != NULL) + state->space.write(state->space.conf_obj, (pa | (real_va & 3)), &data, 2); + else + Memory::Write16((pa | (real_va & 3)), data); + else if (datatype == ARM_WORD_TYPE) + /* mem_write_word (state, pa, data); */ + if(state->space.conf_obj != NULL) + state->space.write(state->space.conf_obj, pa, &data, 4); + else + Memory::Write32(pa, data); +#if 0 + if (state->NumInstrs > 236403) { + printf("write memory\n"); + printf("pa is %x value is %x size is %x\n", pa, data, datatype); + printf("icounter is %lld\n", state->NumInstrs); + } +#endif +finished_write: +#if DIFF_WRITE + if(state->icounter > state->debug_icounter){ + if(state->CurrWrite >= 17 ){ + printf("Wrong write array, 0x%x", state->CurrWrite); + exit(-1); + } + uint32 record_data = data; + if(datatype == ARM_BYTE_TYPE) + record_data &= 0xFF; + if(datatype == ARM_HALFWORD_TYPE) + record_data &= 0xFFFF; + + state->WriteAddr[state->CurrWrite] = pa | (real_va & 3); + state->WriteData[state->CurrWrite] = record_data; + state->WritePc[state->CurrWrite] = state->Reg[15]; + state->CurrWrite++; + //printf("In %s, pc=0x%x, addr=0x%x, data=0x%x, CFlag=%d\n", __FUNCTION__, state->Reg[15], pa | (real_va & 3), record_data, state->CFlag); + } +#endif + + return NO_FAULT; +} + +ARMword +arm1176jzf_s_mmu_mrc (ARMul_State *state, ARMword instr, ARMword *value) +{ + int creg = BITS (16, 19) & 0xf; + int OPC_1 = BITS (21, 23) & 0x7; + int OPC_2 = BITS (5, 7) & 0x7; + ARMword data; + + switch (creg) { + case MMU_ID: + if (OPC_2 == 0) { + data = state->cpu->cpu_val; + } else if (OPC_2 == 1) { + /* Cache type: + * 000 0110 1 000 101 110 0 10 000 101 110 0 10 + * */ + data = 0x0D172172; + } + break; + case MMU_CONTROL: + /* + * 6:3 read as 1 + * 10 read as 0 + * 18,16 read as 1 + * */ + data = (state->mmu.control | 0x50078) & 0xFFFFFBFF; + break; + case MMU_TRANSLATION_TABLE_BASE: +#if 0 + data = state->mmu.translation_table_base; +#endif + switch (OPC_2) { + case 0: + data = state->mmu.translation_table_base0; + break; + case 1: + data = state->mmu.translation_table_base1; + break; + case 2: + data = state->mmu.translation_table_ctrl; + break; + default: + printf ("mmu_mrc read UNKNOWN - p15 c2 opcode2 %d\n", OPC_2); + break; + } + break; + case MMU_DOMAIN_ACCESS_CONTROL: + data = state->mmu.domain_access_control; + break; + case MMU_FAULT_STATUS: + /* OPC_2 = 0: data FSR value + * */ + if (OPC_2 == 0) + data = state->mmu.fault_status; + if (OPC_2 == 1) + data = state->mmu.fault_statusi; + break; + case MMU_FAULT_ADDRESS: + data = state->mmu.fault_address; + break; + case MMU_PID: + //data = state->mmu.process_id; + if(OPC_2 == 0) + data = state->mmu.process_id; + else if(OPC_2 == 1) + data = state->mmu.context_id; + else if(OPC_2 == 3){ + data = state->mmu.thread_uro_id; + } + else{ + printf ("mmu_mcr read UNKNOWN - reg %d\n", creg); + } + //printf("SKYEYE In %s, read pid 0x%x, OPC_2 %d, instr=0x%x\n", __FUNCTION__, data, OPC_2, instr); + //exit(-1); + break; + default: + printf ("mmu_mrc read UNKNOWN - reg %d\n", creg); + data = 0; + break; + } +/* printf("\t\t\t\t\tpc = 0x%08x\n", state->Reg[15]); */ + *value = data; + return data; +} + + +static ARMword +arm1176jzf_s_mmu_mcr (ARMul_State *state, ARMword instr, ARMword value) +{ + int creg = BITS (16, 19) & 0xf; + int CRm = BITS (0, 3) & 0xf; + int OPC_1 = BITS (21, 23) & 0x7; + int OPC_2 = BITS (5, 7) & 0x7; + if (!strncmp (state->cpu->cpu_arch_name, "armv6", 5)) { + switch (creg) { + case MMU_CONTROL: + /* + * 6:3 read as 1 + * 10 read as 0 + * 18,16 read as 1 + * */ + if(OPC_2 == 0) + state->mmu.control = (value | 0x50078) & 0xFFFFFBFF; + else if(OPC_2 == 1) + state->mmu.auxiliary_control = value; + else if(OPC_2 == 2) + state->mmu.coprocessor_access_control = value; + else + fprintf(stderr, "In %s, wrong OPC_2 %d\n", __FUNCTION__, OPC_2); + break; + case MMU_TRANSLATION_TABLE_BASE: + switch (OPC_2) { + /* int i; */ + case 0: +#if 0 + /* TTBR0 */ + if (state->mmu.translation_table_ctrl & 0x7) { + for (i = 0; i <= state->mmu.translation_table_ctrl; i++) + state->mmu.translation_table_base0 &= ~(1 << (5 + i)); + } +#endif + state->mmu.translation_table_base0 = (value); + break; + case 1: +#if 0 + /* TTBR1 */ + if (state->mmu.translation_table_ctrl & 0x7) { + for (i = 0; i <= state->mmu.translation_table_ctrl; i++) + state->mmu.translation_table_base1 &= 1 << (5 + i); + } +#endif + state->mmu.translation_table_base1 = (value); + break; + case 2: + /* TTBC */ + state->mmu.translation_table_ctrl = value & 0x7; + break; + default: + printf ("mmu_mcr wrote UNKNOWN - cp15 c2 opcode2 %d\n", OPC_2); + break; + } + //printf("SKYEYE In %s, write TLB_BASE 0x%x OPC_2=%d instr=0x%x\n", __FUNCTION__, value, OPC_2, instr); + //invalidate_all_tlb(state); + break; + case MMU_DOMAIN_ACCESS_CONTROL: + /* printf("mmu_mcr wrote DACR "); */ + state->mmu.domain_access_control = value; + break; + + case MMU_FAULT_STATUS: + if (OPC_2 == 0) + state->mmu.fault_status = value & 0xFF; + if (OPC_2 == 1) { + printf("set fault status instr\n"); + } + break; + case MMU_FAULT_ADDRESS: + state->mmu.fault_address = value; + break; + + case MMU_CACHE_OPS: + break; + case MMU_TLB_OPS: + { + switch(CRm){ + case 5: /* ITLB */ + { + switch(OPC_2){ + case 0: /* invalidate all */ + //invalidate_all_tlb(state); + break; + case 1: /* invalidate by MVA */ + //invalidate_by_mva(state, value); + break; + case 2: /* invalidate by asid */ + //invalidate_by_asid(state, value); + break; + default: + printf ("mmu_mcr wrote UNKNOWN - reg %d\n", creg); + break; + } + break; + } + case 6: /* DTLB */ + { + switch(OPC_2){ + case 0: /* invalidate all */ + //invalidate_all_tlb(state); + break; + case 1: /* invalidate by MVA */ + //invalidate_by_mva(state, value); + break; + case 2: /* invalidate by asid */ + //invalidate_by_asid(state, value); + break; + default: + printf ("mmu_mcr wrote UNKNOWN - reg %d\n", creg); + break; + } + break; + } + case 7: /* Unified TLB */ + { + switch(OPC_2){ + case 0: /* invalidate all */ + //invalidate_all_tlb(state); + break; + case 1: /* invalidate by MVA */ + //invalidate_by_mva(state, value); + break; + case 2: /* invalidate by asid */ + //invalidate_by_asid(state, value); + break; + default: + printf ("mmu_mcr wrote UNKNOWN - reg %d\n", creg); + break; + } + break; + } + + default: + printf ("mmu_mcr wrote UNKNOWN - reg %d, CRm=%d\n", creg, CRm); + break; + } + //printf("SKYEYE In %s, write TLB 0x%x OPC_1=%d, OPC_2=%d , CRm=%d instr=0x%x\n", __FUNCTION__, value, OPC_1, OPC_2, CRm, instr); + } + break; + case MMU_CACHE_LOCKDOWN: + /* + * FIXME: cache lock down*/ + break; + case MMU_TLB_LOCKDOWN: + printf("SKYEYE In %s, write TLB_LOCKDOWN 0x%x OPC_2=%d instr=0x%x\n", __FUNCTION__, value, OPC_2, instr); + /* FIXME:tlb lock down */ + break; + case MMU_PID: + //printf("SKYEYE In %s, write pid 0x%x OPC_2=%d instr=0x%x\n", __FUNCTION__, value, OPC_2, instr); + //state->mmu.process_id = value; + /*0:24 should be zero. */ + //state->mmu.process_id = value & 0xfe000000; + if(OPC_2 == 0) + state->mmu.process_id = value; + else if(OPC_2 == 1) + state->mmu.context_id = value; + else if(OPC_2 == 3){ + state->mmu.thread_uro_id = value; + } + else{ + printf ("mmu_mcr wrote UNKNOWN - reg %d\n", creg); + } + break; + + default: + printf ("mmu_mcr wrote UNKNOWN - reg %d\n", creg); + break; + } + } + + return No_exp; +} + +///* teawater add for arm2x86 2005.06.19------------------------------------------- */ +//static int +//arm1176jzf_s_mmu_v2p_dbct (ARMul_State *state, ARMword virt_addr, +// ARMword *phys_addr) +//{ +// fault_t fault; +// int ap, sop; +// +// ARMword perm; /* physical addr access permissions */ +// virt_addr = mmu_pid_va_map (virt_addr); +// if (MMU_Enabled) { +// +// /*align check */ +// if ((virt_addr & (WORD_SIZE - 1)) && MMU_Aligned) { +// DEBUG_LOG(ARM11, "align\n"); +// return ALIGNMENT_FAULT; +// } else +// virt_addr &= ~(WORD_SIZE - 1); +// +// /*translate tlb */ +// fault = mmu_translate (state, virt_addr, phys_addr, &ap, &sop); +// if (fault) { +// DEBUG_LOG(ARM11, "translate\n"); +// return fault; +// } +// +// /* permission check */ +// if (!check_perms(state, ap, 1)) { +// if (sop == 0) { +// return SECTION_PERMISSION_FAULT; +// } else { +// return SUBPAGE_PERMISSION_FAULT; +// } +// } +//#if 0 +// /*check access */ +// fault = check_access (state, virt_addr, tlb, 1); +// if (fault) { +// DEBUG_LOG(ARM11, "check_fault\n"); +// return fault; +// } +//#endif +// } +// +// if (MMU_Disabled) { +// *phys_addr = virt_addr; +// } +// +// return 0; +//} + +/* AJ2D-------------------------------------------------------------------------- */ + +/*arm1176jzf-s mmu_ops_t*/ +mmu_ops_t arm1176jzf_s_mmu_ops = { + arm1176jzf_s_mmu_init, + arm1176jzf_s_mmu_exit, + arm1176jzf_s_mmu_read_byte, + arm1176jzf_s_mmu_write_byte, + arm1176jzf_s_mmu_read_halfword, + arm1176jzf_s_mmu_write_halfword, + arm1176jzf_s_mmu_read_word, + arm1176jzf_s_mmu_write_word, + arm1176jzf_s_mmu_load_instr, + arm1176jzf_s_mmu_mcr, + arm1176jzf_s_mmu_mrc +/* teawater add for arm2x86 2005.06.19------------------------------------------- */ +/* arm1176jzf_s_mmu_v2p_dbct, */ +/* AJ2D-------------------------------------------------------------------------- */ +}; diff --git a/src/core/arm/interpreter/mmu/arm1176jzf_s_mmu.h b/src/core/arm/interpreter/mmu/arm1176jzf_s_mmu.h new file mode 100644 index 000000000..299c6b46b --- /dev/null +++ b/src/core/arm/interpreter/mmu/arm1176jzf_s_mmu.h @@ -0,0 +1,37 @@ +/* + arm1176JZF-S_mmu.h - ARM1176JZF-S Memory Management Unit emulation. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#ifndef _ARM1176JZF_S_MMU_H_ +#define _ARM1176JZF_S_MMU_H_ + +#if 0 +typedef struct arm1176jzf-s_mmu_s +{ + tlb_t i_tlb; + cache_t i_cache; + + tlb_t d_tlb; + cache_t d_cache; + wb_t wb_t; +} arm1176jzf-s_mmu_t; +#endif +extern mmu_ops_t arm1176jzf_s_mmu_ops; + +ARMword +arm1176jzf_s_mmu_mrc (ARMul_State *state, ARMword instr, ARMword *value); +#endif /*_ARM1176JZF_S_MMU_H_*/ diff --git a/src/core/arm/interpreter/mmu/cache.h b/src/core/arm/interpreter/mmu/cache.h new file mode 100644 index 000000000..d308d9b87 --- /dev/null +++ b/src/core/arm/interpreter/mmu/cache.h @@ -0,0 +1,168 @@ +#ifndef _MMU_CACHE_H_ +#define _MMU_CACHE_H_ + +typedef struct cache_line_t +{ + ARMword tag; /* cache line align address | + bit2: last half dirty + bit1: first half dirty + bit0: cache valid flag + */ + ARMword pa; /*physical address */ + ARMword *data; /*array of cached data */ +} cache_line_t; +#define TAG_VALID_FLAG 0x00000001 +#define TAG_FIRST_HALF_DIRTY 0x00000002 +#define TAG_LAST_HALF_DIRTY 0x00000004 + +/*cache set association*/ +typedef struct cache_set_s +{ + cache_line_t *lines; + int cycle; +} cache_set_t; + +enum +{ + CACHE_WRITE_BACK, + CACHE_WRITE_THROUGH, +}; + +typedef struct cache_s +{ + int width; /*bytes in a line */ + int way; /*way of set asscociate */ + int set; /*num of set */ + int w_mode; /*write back or write through */ + //int a_mode; /*alloc mode: random or round-bin*/ + cache_set_t *sets; + /**/} cache_s; + +typedef struct cache_desc_s +{ + int width; + int way; + int set; + int w_mode; +// int a_mode; +} cache_desc_t; + + +/*virtual address to cache set index*/ +#define va_cache_set(va, cache_t) \ + (((va) / (cache_t)->width) & ((cache_t)->set - 1)) +/*virtual address to cahce line aligned*/ +#define va_cache_align(va, cache_t) \ + ((va) & ~((cache_t)->width - 1)) +/*virtaul address to cache line word index*/ +#define va_cache_index(va, cache_t) \ + (((va) & ((cache_t)->width - 1)) >> WORD_SHT) + +/*see Page 558 in arm manual*/ +/*set/index format value to cache set value*/ +#define index_cache_set(index, cache_t) \ + (((index) / (cache_t)->width) & ((cache_t)->set - 1)) + +/*************************cache********************/ +/* mmu cache init + * + * @cache_t :cache_t to init + * @width :cache line width in byte + * @way :way of each cache set + * @set :cache set num + * @w_mode :cache w_mode + * + * $ -1: error + * 0: sucess + */ +int +mmu_cache_init (cache_s * cache_t, int width, int way, int set, int w_mode); + +/* free a cache_t's inner data, the ptr self is not freed, + * when needed do like below: + * mmu_cache_exit(cache); + * free(cache_t); + * + * @cache_t : the cache_t to free + */ +void mmu_cache_exit (cache_s * cache_t); + +/* mmu cache search + * + * @state :ARMul_State + * @cache_t :cache_t to search + * @va :virtual address + * + * $ NULL: no cache match + * cache :cache matched + * */ +cache_line_t *mmu_cache_search (ARMul_State * state, cache_s * cache_t, + ARMword va); + +/* mmu cache search by set/index + * + * @state :ARMul_State + * @cache_t :cache_t to search + * @index :set/index value. + * + * $ NULL: no cache match + * cache :cache matched + * */ + +cache_line_t *mmu_cache_search_by_index (ARMul_State * state, + cache_s * cache_t, ARMword index); + +/* mmu cache alloc + * + * @state :ARMul_State + * @cache_t :cache_t to alloc from + * @va :virtual address that require cache alloc, need not cache aligned + * @pa :physical address of va + * + * $ cache_alloced, always alloc OK + */ +cache_line_t *mmu_cache_alloc (ARMul_State * state, cache_s * cache_t, + ARMword va, ARMword pa); + +/* mmu_cache_write_back write cache data to memory + * + * @state: + * @cache_t :cache_t of the cache line + * @cache : cache line + */ +void +mmu_cache_write_back (ARMul_State * state, cache_s * cache_t, + cache_line_t * cache); + +/* mmu_cache_clean: clean a cache of va in cache_t + * + * @state :ARMul_State + * @cache_t :cache_t to clean + * @va :virtaul address + */ +void mmu_cache_clean (ARMul_State * state, cache_s * cache_t, ARMword va); +void +mmu_cache_clean_by_index (ARMul_State * state, cache_s * cache_t, + ARMword index); + +/* mmu_cache_invalidate : invalidate a cache of va + * + * @state :ARMul_State + * @cache_t :cache_t to invalid + * @va :virt_addr to invalid + */ +void +mmu_cache_invalidate (ARMul_State * state, cache_s * cache_t, ARMword va); + +void +mmu_cache_invalidate_by_index (ARMul_State * state, cache_s * cache_t, + ARMword index); + +void mmu_cache_invalidate_all (ARMul_State * state, cache_s * cache_t); + +void +mmu_cache_soft_flush (ARMul_State * state, cache_s * cache_t, ARMword pa); + +cache_line_t* mmu_cache_dirty_cache(ARMul_State * state, cache_s * cache_t); + +#endif /*_MMU_CACHE_H_*/ diff --git a/src/core/arm/interpreter/mmu/rb.h b/src/core/arm/interpreter/mmu/rb.h new file mode 100644 index 000000000..7bf0ebb26 --- /dev/null +++ b/src/core/arm/interpreter/mmu/rb.h @@ -0,0 +1,55 @@ +#ifndef _MMU_RB_H +#define _MMU_RB_H + +enum rb_type_t +{ + RB_INVALID = 0, //invalid + RB_1, //1 word + RB_4, //4 word + RB_8, //8 word +}; + +/*bytes of each rb_type*/ +extern ARMword rb_masks[]; + +#define RB_WORD_NUM 8 +typedef struct rb_entry_s +{ + ARMword data[RB_WORD_NUM]; //array to store data + ARMword va; //first word va + int type; //rb type + fault_t fault; //fault set by rb alloc +} rb_entry_t; + +typedef struct rb_s +{ + int num; + rb_entry_t *entrys; +} rb_s; + +/*mmu_rb_init + * @rb_t :rb_t to init + * @num :number of entry + * */ +int mmu_rb_init (rb_s * rb_t, int num); + +/*mmu_rb_exit*/ +void mmu_rb_exit (rb_s * rb_t); + + +/*mmu_rb_search + * @rb_t :rb_t to serach + * @va :va address to math + * + * $ NULL :not match + * NO-NULL: + * */ +rb_entry_t *mmu_rb_search (rb_s * rb_t, ARMword va); + + +void mmu_rb_invalidate_entry (rb_s * rb_t, int i); +void mmu_rb_invalidate_all (rb_s * rb_t); +void mmu_rb_load (ARMul_State * state, rb_s * rb_t, int i_rb, + int type, ARMword va); + +#endif /*_MMU_RB_H_*/ diff --git a/src/core/arm/interpreter/mmu/tlb.h b/src/core/arm/interpreter/mmu/tlb.h new file mode 100644 index 000000000..938c01786 --- /dev/null +++ b/src/core/arm/interpreter/mmu/tlb.h @@ -0,0 +1,94 @@ +#ifndef _MMU_TLB_H_ +#define _MMU_TLB_H_ + +typedef enum tlb_mapping_t +{ + TLB_INVALID = 0, + TLB_SMALLPAGE = 1, + TLB_LARGEPAGE = 2, + TLB_SECTION = 3, + TLB_ESMALLPAGE = 4, + TLB_TINYPAGE = 5 +} tlb_mapping_t; + +extern ARMword tlb_masks[]; + +/* Permissions bits in a TLB entry: + * + * 31 12 11 10 9 8 7 6 5 4 3 2 1 0 + * +-------------+-----+-----+-----+-----+---+---+-------+ + * Page:| | ap3 | ap2 | ap1 | ap0 | C | B | | + * +-------------+-----+-----+-----+-----+---+---+-------+ + * + * 31 12 11 10 9 4 3 2 1 0 + * +-------------+-----+-----------------+---+---+-------+ + * Section: | | AP | | C | B | | + * +-------------+-----+-----------------+---+---+-------+ + */ + +/* +section: + section base address [31:20] + AP - table 8-2, page 8-8 + domain + C,B + +page: + page base address [31:16] or [31:12] + ap[3:0] + domain (from L1) + C,B +*/ + + +typedef struct tlb_entry_t +{ + ARMword virt_addr; + ARMword phys_addr; + ARMword perms; + ARMword domain; + tlb_mapping_t mapping; +} tlb_entry_t; + +typedef struct tlb_s +{ + int num; /*num of tlb entry */ + int cycle; /*current tlb cycle */ + tlb_entry_t *entrys; +} tlb_s; + + +#define tlb_c_flag(tlb) \ + ((tlb)->perms & 0x8) +#define tlb_b_flag(tlb) \ + ((tlb)->perms & 0x4) + +#define tlb_va_to_pa(tlb, va) \ +(\ + {\ + ARMword mask = tlb_masks[tlb->mapping]; \ + (tlb->phys_addr & mask) | (va & ~mask);\ + }\ +) + +fault_t +check_access (ARMul_State * state, ARMword virt_addr, tlb_entry_t * tlb, + int read); + +fault_t +translate (ARMul_State * state, ARMword virt_addr, tlb_s * tlb_t, + tlb_entry_t ** tlb); + +int mmu_tlb_init (tlb_s * tlb_t, int num); + +void mmu_tlb_exit (tlb_s * tlb_t); + +void mmu_tlb_invalidate_all (ARMul_State * state, tlb_s * tlb_t); + +void +mmu_tlb_invalidate_entry (ARMul_State * state, tlb_s * tlb_t, ARMword addr); + +tlb_entry_t *mmu_tlb_search (ARMul_State * state, tlb_s * tlb_t, + ARMword virt_addr); + +#endif /*_MMU_TLB_H_*/ diff --git a/src/core/arm/interpreter/mmu/wb.h b/src/core/arm/interpreter/mmu/wb.h new file mode 100644 index 000000000..8fb7de946 --- /dev/null +++ b/src/core/arm/interpreter/mmu/wb.h @@ -0,0 +1,63 @@ +#ifndef _MMU_WB_H_ +#define _MMU_WB_H_ + +typedef struct wb_entry_s +{ + ARMword pa; //phy_addr + ARMbyte *data; //data + int nb; //number byte to write +} wb_entry_t; + +typedef struct wb_s +{ + int num; //number of wb_entry + int nb; //number of byte of each entry + int first; // + int last; // + int used; // + wb_entry_t *entrys; +} wb_s; + +typedef struct wb_desc_s +{ + int num; + int nb; +} wb_desc_t; + +/* wb_init + * @wb_t :wb_t to init + * @num :num of entrys + * @nw :num of word of each entry + * + * $ -1:error + * 0:ok + * */ +int mmu_wb_init (wb_s * wb_t, int num, int nb); + + +/* wb_exit + * @wb_t :wb_t to exit + * */ +void mmu_wb_exit (wb_s * wb); + + +/* wb_write_bytes :put bytess in Write Buffer + * @state: ARMul_State + * @wb_t: write buffer + * @pa: physical address + * @data: data ptr + * @n number of byte to write + * + * Note: write buffer merge is not implemented, can be done late + * */ +void +mmu_wb_write_bytess (ARMul_State * state, wb_s * wb_t, ARMword pa, + ARMbyte * data, int n); + + +/* wb_drain_all + * @wb_t wb_t to drain + * */ +void mmu_wb_drain_all (ARMul_State * state, wb_s * wb_t); + +#endif /*_MMU_WB_H_*/ -- cgit v1.2.3 From 9a642caee770db2632f4daa842b10801b47ffbfc Mon Sep 17 00:00:00 2001 From: bunnei Date: Thu, 15 May 2014 23:39:06 -0400 Subject: added missing skyeye mmu code --- src/core/arm/interpreter/mmu/cache.cpp | 370 +++++++ src/core/arm/interpreter/mmu/rb.cpp | 126 +++ src/core/arm/interpreter/mmu/sa_mmu.cpp | 864 +++++++++++++++ src/core/arm/interpreter/mmu/sa_mmu.h | 58 ++ src/core/arm/interpreter/mmu/tlb.cpp | 307 ++++++ src/core/arm/interpreter/mmu/tlb.h | 9 +- src/core/arm/interpreter/mmu/wb.cpp | 149 +++ src/core/arm/interpreter/mmu/xscale_copro.cpp | 1388 +++++++++++++++++++++++++ 8 files changed, 3263 insertions(+), 8 deletions(-) create mode 100644 src/core/arm/interpreter/mmu/cache.cpp create mode 100644 src/core/arm/interpreter/mmu/rb.cpp create mode 100644 src/core/arm/interpreter/mmu/sa_mmu.cpp create mode 100644 src/core/arm/interpreter/mmu/sa_mmu.h create mode 100644 src/core/arm/interpreter/mmu/tlb.cpp create mode 100644 src/core/arm/interpreter/mmu/wb.cpp create mode 100644 src/core/arm/interpreter/mmu/xscale_copro.cpp (limited to 'src/core/arm/interpreter/mmu') diff --git a/src/core/arm/interpreter/mmu/cache.cpp b/src/core/arm/interpreter/mmu/cache.cpp new file mode 100644 index 000000000..f3c4e0531 --- /dev/null +++ b/src/core/arm/interpreter/mmu/cache.cpp @@ -0,0 +1,370 @@ +#include "core/arm/interpreter/armdefs.h" + +/* mmu cache init + * + * @cache_t :cache_t to init + * @width :cache line width in byte + * @way :way of each cache set + * @set :cache set num + * + * $ -1: error + * 0: sucess + */ +int +mmu_cache_init (cache_s * cache_t, int width, int way, int set, int w_mode) +{ + int i, j; + cache_set_t *sets; + cache_line_t *lines; + + /*alloc cache set */ + sets = NULL; + lines = NULL; + //fprintf(stderr, "mmu_cache_init: mallloc beg size %d,sets 0x%x\n", sizeof(cache_set_t) * set,sets); + //exit(-1); + sets = (cache_set_t *) malloc (sizeof (cache_set_t) * set); + if (sets == NULL) { + ERROR_LOG(ARM11, "set malloc size %d\n", sizeof (cache_set_t) * set); + goto sets_error; + } + //fprintf(stderr, "mmu_cache_init: mallloc end sets 0x%x\n", sets); + cache_t->sets = sets; + + /*init cache set */ + for (i = 0; i < set; i++) { + /*alloc cache line */ + lines = (cache_line_t *) malloc (sizeof (cache_line_t) * way); + if (lines == NULL) { + ERROR_LOG(ARM11, "line malloc size %d\n", + sizeof (cache_line_t) * way); + goto lines_error; + } + /*init cache line */ + for (j = 0; j < way; j++) { + lines[j].tag = 0; //invalid + lines[j].data = (ARMword *) malloc (width); + if (lines[j].data == NULL) { + ERROR_LOG(ARM11, "data alloc size %d\n", width); + goto data_error; + } + } + + sets[i].lines = lines; + sets[i].cycle = 0; + + } + cache_t->width = width; + cache_t->set = set; + cache_t->way = way; + cache_t->w_mode = w_mode; + return 0; + + data_error: + /*free data */ + while (j-- > 0) + free (lines[j].data); + /*free data error line */ + free (lines); + lines_error: + /*free lines already alloced */ + while (i-- > 0) { + for (j = 0; j < way; j++) + free (sets[i].lines[j].data); + free (sets[i].lines); + } + /*free sets */ + free (sets); + sets_error: + return -1; +}; + +/* free a cache_t's inner data, the ptr self is not freed, + * when needed do like below: + * mmu_cache_exit(cache); + * free(cache_t); + * + * @cache_t : the cache_t to free + */ + +void +mmu_cache_exit (cache_s * cache_t) +{ + int i, j; + cache_set_t *sets, *set; + cache_line_t *lines, *line; + + /*free all set */ + sets = cache_t->sets; + for (set = sets, i = 0; i < cache_t->set; i++, set++) { + /*free all line */ + lines = set->lines; + for (line = lines, j = 0; j < cache_t->way; j++, line++) + free (line->data); + free (lines); + } + free (sets); +} + +/* mmu cache search + * + * @state :ARMul_State + * @cache_t :cache_t to search + * @va :virtual address + * + * $ NULL: no cache match + * cache :cache matched + */ +cache_line_t * +mmu_cache_search (ARMul_State * state, cache_s * cache_t, ARMword va) +{ + int i; + int set = va_cache_set (va, cache_t); + ARMword tag = va_cache_align (va, cache_t); + cache_line_t *cache; + + cache_set_t *cache_set = cache_t->sets + set; + for (i = 0, cache = cache_set->lines; i < cache_t->way; i++, cache++) { + if ((cache->tag & TAG_VALID_FLAG) + && (tag == va_cache_align (cache->tag, cache_t))) + return cache; + } + return NULL; +} + +/* mmu cache search by set/index + * + * @state :ARMul_State + * @cache_t :cache_t to search + * @index :set/index value. + * + * $ NULL: no cache match + * cache :cache matched + */ +cache_line_t * +mmu_cache_search_by_index (ARMul_State * state, cache_s * cache_t, + ARMword index) +{ + int way = cache_t->way; + int set_v = index_cache_set (index, cache_t); + int i = 0, index_v = 0; + cache_set_t *set; + + while ((way >>= 1) >= 1) + i++; + index_v = index >> (32 - i); + set = cache_t->sets + set_v; + + return set->lines + index_v; +} + + +/* mmu cache alloc + * + * @state :ARMul_State + * @cache_t :cache_t to alloc from + * @va :virtual address that require cache alloc, need not cache aligned + * @pa :physical address of va + * + * $ cache_alloced, always alloc OK + */ +cache_line_t * +mmu_cache_alloc (ARMul_State * state, cache_s * cache_t, ARMword va, + ARMword pa) +{ + cache_line_t *cache; + cache_set_t *set; + int i; + + va = va_cache_align (va, cache_t); + pa = va_cache_align (pa, cache_t); + + set = &cache_t->sets[va_cache_set (va, cache_t)]; + + /*robin-round */ + cache = &set->lines[set->cycle++]; + if (set->cycle == cache_t->way) + set->cycle = 0; + + if (cache_t->w_mode == CACHE_WRITE_BACK) { + ARMword t; + + /*if cache valid, try to write back */ + if (cache->tag & TAG_VALID_FLAG) { + mmu_cache_write_back (state, cache_t, cache); + } + /*read in cache_line */ + t = pa; + for (i = 0; i < (cache_t->width >> WORD_SHT); + i++, t += WORD_SIZE) { + //cache->data[i] = mem_read_word (state, t); + bus_read(32, t, &cache->data[i]); + } + } + /*store tag and pa */ + cache->tag = va | TAG_VALID_FLAG; + cache->pa = pa; + + return cache; +}; + +/* mmu_cache_write_back write cache data to memory + * @state + * @cache_t :cache_t of the cache line + * @cache : cache line + */ +void +mmu_cache_write_back (ARMul_State * state, cache_s * cache_t, + cache_line_t * cache) +{ + ARMword pa = cache->pa; + int nw = cache_t->width >> WORD_SHT; + ARMword *data = cache->data; + int i; + int t0, t1, t2; + + if ((cache->tag & 1) == 0) + return; + + switch (cache-> + tag & ~1 & (TAG_FIRST_HALF_DIRTY | TAG_LAST_HALF_DIRTY)) { + case 0: + return; + case TAG_FIRST_HALF_DIRTY: + nw /= 2; + break; + case TAG_LAST_HALF_DIRTY: + nw /= 2; + pa += nw << WORD_SHT; + data += nw; + break; + case TAG_FIRST_HALF_DIRTY | TAG_LAST_HALF_DIRTY: + break; + } + for (i = 0; i < nw; i++, data++, pa += WORD_SIZE) + //mem_write_word (state, pa, *data); + bus_write(32, pa, *data); + + cache->tag &= ~(TAG_FIRST_HALF_DIRTY | TAG_LAST_HALF_DIRTY); +}; + + +/* mmu_cache_clean: clean a cache of va in cache_t + * + * @state :ARMul_State + * @cache_t :cache_t to clean + * @va :virtaul address + */ +void +mmu_cache_clean (ARMul_State * state, cache_s * cache_t, ARMword va) +{ + cache_line_t *cache; + + cache = mmu_cache_search (state, cache_t, va); + if (cache) + mmu_cache_write_back (state, cache_t, cache); +} + +/* mmu_cache_clean_by_index: clean a cache by set/index format value + * + * @state :ARMul_State + * @cache_t :cache_t to clean + * @va :set/index format value + */ +void +mmu_cache_clean_by_index (ARMul_State * state, cache_s * cache_t, + ARMword index) +{ + cache_line_t *cache; + + cache = mmu_cache_search_by_index (state, cache_t, index); + if (cache) + mmu_cache_write_back (state, cache_t, cache); +} + +/* mmu_cache_invalidate : invalidate a cache of va + * + * @state :ARMul_State + * @cache_t :cache_t to invalid + * @va :virt_addr to invalid + */ +void +mmu_cache_invalidate (ARMul_State * state, cache_s * cache_t, ARMword va) +{ + cache_line_t *cache; + + cache = mmu_cache_search (state, cache_t, va); + if (cache) { + mmu_cache_write_back (state, cache_t, cache); + cache->tag = 0; + } +} + +/* mmu_cache_invalidate_by_index : invalidate a cache by index format + * + * @state :ARMul_State + * @cache_t :cache_t to invalid + * @index :set/index data + */ +void +mmu_cache_invalidate_by_index (ARMul_State * state, cache_s * cache_t, + ARMword index) +{ + cache_line_t *cache; + + cache = mmu_cache_search_by_index (state, cache_t, index); + if (cache) { + mmu_cache_write_back (state, cache_t, cache); + cache->tag = 0; + } +} + +/* mmu_cache_invalidate_all + * + * @state: + * @cache_t + * */ +void +mmu_cache_invalidate_all (ARMul_State * state, cache_s * cache_t) +{ + int i, j; + cache_set_t *set; + cache_line_t *cache; + + set = cache_t->sets; + for (i = 0; i < cache_t->set; i++, set++) { + cache = set->lines; + for (j = 0; j < cache_t->way; j++, cache++) { + mmu_cache_write_back (state, cache_t, cache); + cache->tag = 0; + } + } +}; + +void +mmu_cache_soft_flush (ARMul_State * state, cache_s * cache_t, ARMword pa) +{ + ARMword set, way; + cache_line_t *cache; + pa = (pa / cache_t->width); + way = pa & (cache_t->way - 1); + set = (pa / cache_t->way) & (cache_t->set - 1); + cache = &cache_t->sets[set].lines[way]; + + mmu_cache_write_back (state, cache_t, cache); + cache->tag = 0; +} + +cache_line_t* mmu_cache_dirty_cache(ARMul_State *state,cache_s *cache){ + int i; + int j; + cache_line_t *cache_line = NULL; + cache_set_t *cache_set = cache->sets; + int sets = cache->set; + for (i = 0; i < sets; i++){ + for(j = 0,cache_line = &cache_set[i].lines[0]; j < cache->way; j++,cache_line++){ + if((cache_line->tag & TAG_FIRST_HALF_DIRTY) || (cache_line->tag & TAG_LAST_HALF_DIRTY)) + return cache_line; + } + } + return NULL; +} diff --git a/src/core/arm/interpreter/mmu/rb.cpp b/src/core/arm/interpreter/mmu/rb.cpp new file mode 100644 index 000000000..07b11e311 --- /dev/null +++ b/src/core/arm/interpreter/mmu/rb.cpp @@ -0,0 +1,126 @@ +#include "core/arm/interpreter/armdefs.h" + +/*chy 2004-06-06, fix bug found by wenye@cs.ucsb.edu*/ +ARMword rb_masks[] = { + 0x0, //RB_INVALID + 4, //RB_1 + 16, //RB_4 + 32, //RB_8 +}; + +/*mmu_rb_init + * @rb_t :rb_t to init + * @num :number of entry + * */ +int +mmu_rb_init (rb_s * rb_t, int num) +{ + int i; + rb_entry_t *entrys; + + entrys = (rb_entry_t *) malloc (sizeof (*entrys) * num); + if (entrys == NULL) { + printf ("SKYEYE:mmu_rb_init malloc error\n"); + return -1; + } + for (i = 0; i < num; i++) { + entrys[i].type = RB_INVALID; + entrys[i].fault = NO_FAULT; + } + + rb_t->entrys = entrys; + rb_t->num = num; + return 0; +} + +/*mmu_rb_exit*/ +void +mmu_rb_exit (rb_s * rb_t) +{ + free (rb_t->entrys); +}; + +/*mmu_rb_search + * @rb_t :rb_t to serach + * @va :va address to math + * + * $ NULL :not match + * NO-NULL: + * */ +rb_entry_t * +mmu_rb_search (rb_s * rb_t, ARMword va) +{ + int i; + rb_entry_t *rb = rb_t->entrys; + + DEBUG_LOG(ARM11, "va = %x\n", va); + for (i = 0; i < rb_t->num; i++, rb++) { + //2004-06-06 lyh bug from wenye@cs.ucsb.edu + if (rb->type) { + if ((va >= rb->va) + && (va < (rb->va + rb_masks[rb->type]))) + return rb; + } + } + return NULL; +}; + +void +mmu_rb_invalidate_entry (rb_s * rb_t, int i) +{ + rb_t->entrys[i].type = RB_INVALID; +} + +void +mmu_rb_invalidate_all (rb_s * rb_t) +{ + int i; + + for (i = 0; i < rb_t->num; i++) + mmu_rb_invalidate_entry (rb_t, i); +}; + +void +mmu_rb_load (ARMul_State * state, rb_s * rb_t, int i_rb, int type, ARMword va) +{ + rb_entry_t *rb; + int i; + ARMword max_start, min_end; + fault_t fault; + tlb_entry_t *tlb; + + /*align va according to type */ + va &= ~(rb_masks[type] - 1); + /*invalidate all RB match [va, va + rb_masks[type]] */ + for (rb = rb_t->entrys, i = 0; i < rb_t->num; i++, rb++) { + if (rb->type) { + max_start = max (va, rb->va); + min_end = + min (va + rb_masks[type], + rb->va + rb_masks[rb->type]); + if (max_start < min_end) + rb->type = RB_INVALID; + } + } + /*load word */ + rb = &rb_t->entrys[i_rb]; + rb->type = type; + fault = translate (state, va, D_TLB (), &tlb); + if (fault) { + rb->fault = fault; + return; + } + fault = check_access (state, va, tlb, 1); + if (fault) { + rb->fault = fault; + return; + } + + rb->fault = NO_FAULT; + va = tlb_va_to_pa (tlb, va); + //2004-06-06 lyh bug from wenye@cs.ucsb.edu + for (i = 0; i < (rb_masks[type] / 4); i++, va += WORD_SIZE) { + //rb->data[i] = mem_read_word (state, va); + bus_read(32, va, &rb->data[i]); + }; +} diff --git a/src/core/arm/interpreter/mmu/sa_mmu.cpp b/src/core/arm/interpreter/mmu/sa_mmu.cpp new file mode 100644 index 000000000..eff5002de --- /dev/null +++ b/src/core/arm/interpreter/mmu/sa_mmu.cpp @@ -0,0 +1,864 @@ +/* + armmmu.c - Memory Management Unit emulation. + ARMulator extensions for the ARM7100 family. + Copyright (C) 1999 Ben Williamson + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#include +#include + +#include "core/arm/interpreter/armdefs.h" + +/** + * The interface of read data from bus + */ +int bus_read(short size, int addr, uint32_t * value) { + ERROR_LOG(ARM11, "unimplemented bus_read"); + return 0; +} + +/** + * The interface of write data from bus + */ +int bus_write(short size, int addr, uint32_t value) { + ERROR_LOG(ARM11, "unimplemented bus_write"); + return 0; +} + + +typedef struct sa_mmu_desc_s +{ + int i_tlb; + cache_desc_t i_cache; + + int d_tlb; + cache_desc_t main_d_cache; + cache_desc_t mini_d_cache; + int rb; + wb_desc_t wb; +} sa_mmu_desc_t; + +static sa_mmu_desc_t sa11xx_mmu_desc = { + 32, + {32, 32, 16, CACHE_WRITE_BACK}, + + 32, + {32, 32, 8, CACHE_WRITE_BACK}, + {32, 2, 8, CACHE_WRITE_BACK}, + 4, + //{8, 4}, for word size + {8, 16}, //for byte size, chy 2003-07-11 +}; + +static fault_t sa_mmu_write (ARMul_State * state, ARMword va, ARMword data, + ARMword datatype); +static fault_t sa_mmu_read (ARMul_State * state, ARMword va, ARMword * data, + ARMword datatype); +static fault_t update_cache (ARMul_State * state, ARMword va, ARMword data, + ARMword datatype, cache_line_t * cache, + cache_s * cache_t, ARMword real_va); + +void +mmu_wb_write_bytes (ARMul_State * state, wb_s * wb_t, ARMword pa, + ARMbyte * data, int n); +int +sa_mmu_init (ARMul_State * state) +{ + sa_mmu_desc_t *desc; + cache_desc_t *c_desc; + + state->mmu.control = 0x70; + state->mmu.translation_table_base = 0xDEADC0DE; + state->mmu.domain_access_control = 0xDEADC0DE; + state->mmu.fault_status = 0; + state->mmu.fault_address = 0; + state->mmu.process_id = 0; + + desc = &sa11xx_mmu_desc; + if (mmu_tlb_init (I_TLB (), desc->i_tlb)) { + ERROR_LOG(ARM11, "i_tlb init %d\n", -1); + goto i_tlb_init_error; + } + + c_desc = &desc->i_cache; + if (mmu_cache_init (I_CACHE (), c_desc->width, c_desc->way, + c_desc->set, c_desc->w_mode)) { + ERROR_LOG(ARM11, "i_cache init %d\n", -1); + goto i_cache_init_error; + } + + if (mmu_tlb_init (D_TLB (), desc->d_tlb)) { + ERROR_LOG(ARM11, "d_tlb init %d\n", -1); + goto d_tlb_init_error; + } + + c_desc = &desc->main_d_cache; + if (mmu_cache_init (MAIN_D_CACHE (), c_desc->width, c_desc->way, + c_desc->set, c_desc->w_mode)) { + ERROR_LOG(ARM11, "main_d_cache init %d\n", -1); + goto main_d_cache_init_error; + } + + c_desc = &desc->mini_d_cache; + if (mmu_cache_init (MINI_D_CACHE (), c_desc->width, c_desc->way, + c_desc->set, c_desc->w_mode)) { + ERROR_LOG(ARM11, "mini_d_cache init %d\n", -1); + goto mini_d_cache_init_error; + } + + if (mmu_wb_init (WB (), desc->wb.num, desc->wb.nb)) { + ERROR_LOG(ARM11, "wb init %d\n", -1); + goto wb_init_error; + } + + if (mmu_rb_init (RB (), desc->rb)) { + ERROR_LOG(ARM11, "rb init %d\n", -1); + goto rb_init_error; + } + return 0; + + rb_init_error: + mmu_wb_exit (WB ()); + wb_init_error: + mmu_cache_exit (MINI_D_CACHE ()); + mini_d_cache_init_error: + mmu_cache_exit (MAIN_D_CACHE ()); + main_d_cache_init_error: + mmu_tlb_exit (D_TLB ()); + d_tlb_init_error: + mmu_cache_exit (I_CACHE ()); + i_cache_init_error: + mmu_tlb_exit (I_TLB ()); + i_tlb_init_error: + return -1; +} + +void +sa_mmu_exit (ARMul_State * state) +{ + mmu_rb_exit (RB ()); + mmu_wb_exit (WB ()); + mmu_cache_exit (MINI_D_CACHE ()); + mmu_cache_exit (MAIN_D_CACHE ()); + mmu_tlb_exit (D_TLB ()); + mmu_cache_exit (I_CACHE ()); + mmu_tlb_exit (I_TLB ()); +}; + + +static fault_t +sa_mmu_load_instr (ARMul_State * state, ARMword va, ARMword * instr) +{ + fault_t fault; + tlb_entry_t *tlb; + cache_line_t *cache; + int c; //cache bit + ARMword pa; //physical addr + + static int debug_count = 0; //used for debug + + DEBUG_LOG(ARM11, "va = %x\n", va); + + va = mmu_pid_va_map (va); + if (MMU_Enabled) { + /*align check */ + if ((va & (WORD_SIZE - 1)) && MMU_Aligned) { + DEBUG_LOG(ARM11, "align\n"); + return ALIGNMENT_FAULT; + } + else + va &= ~(WORD_SIZE - 1); + + /*translate tlb */ + fault = translate (state, va, I_TLB (), &tlb); + if (fault) { + DEBUG_LOG(ARM11, "translate\n"); + return fault; + } + + /*check access */ + fault = check_access (state, va, tlb, 1); + if (fault) { + DEBUG_LOG(ARM11, "check_fault\n"); + return fault; + } + } + + /*search cache no matter MMU enabled/disabled */ + cache = mmu_cache_search (state, I_CACHE (), va); + if (cache) { + *instr = cache->data[va_cache_index (va, I_CACHE ())]; + return NO_FAULT; + } + + /*if MMU disabled or C flag is set alloc cache */ + if (MMU_Disabled) { + c = 1; + pa = va; + } + else { + c = tlb_c_flag (tlb); + pa = tlb_va_to_pa (tlb, va); + } + + if (c) { + int index; + + debug_count++; + cache = mmu_cache_alloc (state, I_CACHE (), va, pa); + index = va_cache_index (va, I_CACHE ()); + *instr = cache->data[va_cache_index (va, I_CACHE ())]; + } + else + //*instr = mem_read_word (state, pa); + bus_read(32, pa, instr); + + return NO_FAULT; +}; + + + +static fault_t +sa_mmu_read_byte (ARMul_State * state, ARMword virt_addr, ARMword * data) +{ + //ARMword temp,offset; + fault_t fault; + fault = sa_mmu_read (state, virt_addr, data, ARM_BYTE_TYPE); + return fault; +} + +static fault_t +sa_mmu_read_halfword (ARMul_State * state, ARMword virt_addr, ARMword * data) +{ + //ARMword temp,offset; + fault_t fault; + fault = sa_mmu_read (state, virt_addr, data, ARM_HALFWORD_TYPE); + return fault; +} + +static fault_t +sa_mmu_read_word (ARMul_State * state, ARMword virt_addr, ARMword * data) +{ + return sa_mmu_read (state, virt_addr, data, ARM_WORD_TYPE); +} + + + + +static fault_t +sa_mmu_read (ARMul_State * state, ARMword va, ARMword * data, + ARMword datatype) +{ + fault_t fault; + rb_entry_t *rb; + tlb_entry_t *tlb; + cache_line_t *cache; + ARMword pa, real_va, temp, offset; + + DEBUG_LOG(ARM11, "va = %x\n", va); + + va = mmu_pid_va_map (va); + real_va = va; + /*if MMU disabled, memory_read */ + if (MMU_Disabled) { + //*data = mem_read_word(state, va); + if (datatype == ARM_BYTE_TYPE) + //*data = mem_read_byte (state, va); + bus_read(8, va, data); + else if (datatype == ARM_HALFWORD_TYPE) + //*data = mem_read_halfword (state, va); + bus_read(16, va, data); + else if (datatype == ARM_WORD_TYPE) + //*data = mem_read_word (state, va); + bus_read(32, va, data); + else { + printf ("SKYEYE:1 sa_mmu_read error: unknown data type %d\n", datatype); + // skyeye_exit (-1); + } + + return NO_FAULT; + } + + /*align check */ + if (((va & 3) && (datatype == ARM_WORD_TYPE) && MMU_Aligned) || + ((va & 1) && (datatype == ARM_HALFWORD_TYPE) && MMU_Aligned)) { + DEBUG_LOG(ARM11, "align\n"); + return ALIGNMENT_FAULT; + } // else + + va &= ~(WORD_SIZE - 1); + + /*translate va to tlb */ + fault = translate (state, va, D_TLB (), &tlb); + if (fault) { + DEBUG_LOG(ARM11, "translate\n"); + return fault; + } + /*check access permission */ + fault = check_access (state, va, tlb, 1); + if (fault) + return fault; + /*search in read buffer */ + rb = mmu_rb_search (RB (), va); + if (rb) { + if (rb->fault) + return rb->fault; + *data = rb->data[(va & (rb_masks[rb->type] - 1)) >> WORD_SHT]; + goto datatrans; + //return 0; + }; + /*search main cache */ + cache = mmu_cache_search (state, MAIN_D_CACHE (), va); + if (cache) { + *data = cache->data[va_cache_index (va, MAIN_D_CACHE ())]; + goto datatrans; + //return 0; + } + /*search mini cache */ + cache = mmu_cache_search (state, MINI_D_CACHE (), va); + if (cache) { + *data = cache->data[va_cache_index (va, MINI_D_CACHE ())]; + goto datatrans; + //return 0; + } + + /*get phy_addr */ + pa = tlb_va_to_pa (tlb, va); + if ((pa >= 0xe0000000) && (pa < 0xe8000000)) { + if (tlb_c_flag (tlb)) { + if (tlb_b_flag (tlb)) { + mmu_cache_soft_flush (state, MAIN_D_CACHE (), + pa); + } + else { + mmu_cache_soft_flush (state, MINI_D_CACHE (), + pa); + } + } + return NO_FAULT; + } + + /*if Buffer, drain Write Buffer first */ + if (tlb_b_flag (tlb)) + mmu_wb_drain_all (state, WB ()); + + /*alloc cache or mem_read */ + if (tlb_c_flag (tlb) && MMU_DCacheEnabled) { + cache_s *cache_t; + + if (tlb_b_flag (tlb)) + cache_t = MAIN_D_CACHE (); + else + cache_t = MINI_D_CACHE (); + cache = mmu_cache_alloc (state, cache_t, va, pa); + *data = cache->data[va_cache_index (va, cache_t)]; + } + else { + //*data = mem_read_word(state, pa); + if (datatype == ARM_BYTE_TYPE) + //*data = mem_read_byte (state, pa | (real_va & 3)); + bus_read(8, pa | (real_va & 3), data); + else if (datatype == ARM_HALFWORD_TYPE) + //*data = mem_read_halfword (state, pa | (real_va & 2)); + bus_read(16, pa | (real_va & 2), data); + else if (datatype == ARM_WORD_TYPE) + //*data = mem_read_word (state, pa); + bus_read(32, pa, data); + else { + printf ("SKYEYE:2 sa_mmu_read error: unknown data type %d\n", datatype); + // skyeye_exit (-1); + } + return NO_FAULT; + } + + + datatrans: + if (datatype == ARM_HALFWORD_TYPE) { + temp = *data; + offset = (((ARMword) state->bigendSig * 2) ^ (real_va & 2)) << 3; /* bit offset into the word */ + *data = (temp >> offset) & 0xffff; + } + else if (datatype == ARM_BYTE_TYPE) { + temp = *data; + offset = (((ARMword) state->bigendSig * 3) ^ (real_va & 3)) << 3; /* bit offset into the word */ + *data = (temp >> offset & 0xffL); + } + end: + return NO_FAULT; +} + + +static fault_t +sa_mmu_write_byte (ARMul_State * state, ARMword virt_addr, ARMword data) +{ + return sa_mmu_write (state, virt_addr, data, ARM_BYTE_TYPE); +} + +static fault_t +sa_mmu_write_halfword (ARMul_State * state, ARMword virt_addr, ARMword data) +{ + return sa_mmu_write (state, virt_addr, data, ARM_HALFWORD_TYPE); +} + +static fault_t +sa_mmu_write_word (ARMul_State * state, ARMword virt_addr, ARMword data) +{ + return sa_mmu_write (state, virt_addr, data, ARM_WORD_TYPE); +} + + + +static fault_t +sa_mmu_write (ARMul_State * state, ARMword va, ARMword data, ARMword datatype) +{ + tlb_entry_t *tlb; + cache_line_t *cache; + int b; + ARMword pa, real_va; + fault_t fault; + + DEBUG_LOG(ARM11, "va = %x, val = %x\n", va, data); + va = mmu_pid_va_map (va); + real_va = va; + + /*search instruction cache */ + cache = mmu_cache_search (state, I_CACHE (), va); + if (cache) { + update_cache (state, va, data, datatype, cache, I_CACHE (), + real_va); + } + + if (MMU_Disabled) { + //mem_write_word(state, va, data); + if (datatype == ARM_BYTE_TYPE) + //mem_write_byte (state, va, data); + bus_write(8, va, data); + else if (datatype == ARM_HALFWORD_TYPE) + //mem_write_halfword (state, va, data); + bus_write(16, va, data); + else if (datatype == ARM_WORD_TYPE) + //mem_write_word (state, va, data); + bus_write(32, va, data); + else { + printf ("SKYEYE:1 sa_mmu_write error: unknown data type %d\n", datatype); + // skyeye_exit (-1); + } + + return NO_FAULT; + } + /*align check */ + //if ((va & (WORD_SIZE - 1)) && MMU_Aligned){ + if (((va & 3) && (datatype == ARM_WORD_TYPE) && MMU_Aligned) || + ((va & 1) && (datatype == ARM_HALFWORD_TYPE) && MMU_Aligned)) { + DEBUG_LOG(ARM11, "align\n"); + return ALIGNMENT_FAULT; + } //else + va &= ~(WORD_SIZE - 1); + /*tlb translate */ + fault = translate (state, va, D_TLB (), &tlb); + if (fault) { + DEBUG_LOG(ARM11, "translate\n"); + return fault; + } + /*tlb check access */ + fault = check_access (state, va, tlb, 0); + if (fault) { + DEBUG_LOG(ARM11, "check_access\n"); + return fault; + } + /*search main cache */ + cache = mmu_cache_search (state, MAIN_D_CACHE (), va); + if (cache) { + update_cache (state, va, data, datatype, cache, + MAIN_D_CACHE (), real_va); + } + else { + /*search mini cache */ + cache = mmu_cache_search (state, MINI_D_CACHE (), va); + if (cache) { + update_cache (state, va, data, datatype, cache, + MINI_D_CACHE (), real_va); + } + } + + if (!cache) { + b = tlb_b_flag (tlb); + pa = tlb_va_to_pa (tlb, va); + if (b) { + if (MMU_WBEnabled) { + if (datatype == ARM_WORD_TYPE) + mmu_wb_write_bytes (state, WB (), pa, + (ARMbyte*)&data, 4); + else if (datatype == ARM_HALFWORD_TYPE) + mmu_wb_write_bytes (state, WB (), + (pa | + (real_va & 2)), + (ARMbyte*)&data, 2); + else if (datatype == ARM_BYTE_TYPE) + mmu_wb_write_bytes (state, WB (), + (pa | + (real_va & 3)), + (ARMbyte*)&data, 1); + + } + else { + if (datatype == ARM_WORD_TYPE) + //mem_write_word (state, pa, data); + bus_write(32, pa, data); + else if (datatype == ARM_HALFWORD_TYPE) + /* + mem_write_halfword (state, + (pa | + (real_va & 2)), + data); + */ + bus_write(16, pa | (real_va & 2), data); + else if (datatype == ARM_BYTE_TYPE) + /* + mem_write_byte (state, + (pa | (real_va & 3)), + data); + */ + bus_write(8, pa | (real_va & 3), data); + } + } + else { + mmu_wb_drain_all (state, WB ()); + + if (datatype == ARM_WORD_TYPE) + //mem_write_word (state, pa, data); + bus_write(32, pa, data); + else if (datatype == ARM_HALFWORD_TYPE) + /* + mem_write_halfword (state, + (pa | (real_va & 2)), + data); + */ + bus_write(16, pa | (real_va & 2), data); + else if (datatype == ARM_BYTE_TYPE) + /* + mem_write_byte (state, (pa | (real_va & 3)), + data); + */ + bus_write(8, pa | (real_va & 3), data); + } + } + return NO_FAULT; +} + +static fault_t +update_cache (ARMul_State * state, ARMword va, ARMword data, ARMword datatype, + cache_line_t * cache, cache_s * cache_t, ARMword real_va) +{ + ARMword temp, offset; + + ARMword index = va_cache_index (va, cache_t); + + //cache->data[index] = data; + + if (datatype == ARM_WORD_TYPE) + cache->data[index] = data; + else if (datatype == ARM_HALFWORD_TYPE) { + temp = cache->data[index]; + offset = (((ARMword) state->bigendSig * 2) ^ (real_va & 2)) << 3; /* bit offset into the word */ + cache->data[index] = + (temp & ~(0xffffL << offset)) | ((data & 0xffffL) << + offset); + } + else if (datatype == ARM_BYTE_TYPE) { + temp = cache->data[index]; + offset = (((ARMword) state->bigendSig * 3) ^ (real_va & 3)) << 3; /* bit offset into the word */ + cache->data[index] = + (temp & ~(0xffL << offset)) | ((data & 0xffL) << + offset); + } + + if (index < (cache_t->width >> (WORD_SHT + 1))) + cache->tag |= TAG_FIRST_HALF_DIRTY; + else + cache->tag |= TAG_LAST_HALF_DIRTY; + + return NO_FAULT; +} + +ARMword +sa_mmu_mrc (ARMul_State * state, ARMword instr, ARMword * value) +{ + mmu_regnum_t creg = (mmu_regnum_t)(BITS (16, 19) & 15); + ARMword data; + + switch (creg) { + case MMU_ID: +// printf("mmu_mrc read ID "); + data = 0x41007100; /* v3 */ + data = state->cpu->cpu_val; + break; + case MMU_CONTROL: +// printf("mmu_mrc read CONTROL"); + data = state->mmu.control; + break; + case MMU_TRANSLATION_TABLE_BASE: +// printf("mmu_mrc read TTB "); + data = state->mmu.translation_table_base; + break; + case MMU_DOMAIN_ACCESS_CONTROL: +// printf("mmu_mrc read DACR "); + data = state->mmu.domain_access_control; + break; + case MMU_FAULT_STATUS: +// printf("mmu_mrc read FSR "); + data = state->mmu.fault_status; + break; + case MMU_FAULT_ADDRESS: +// printf("mmu_mrc read FAR "); + data = state->mmu.fault_address; + break; + case MMU_PID: + data = state->mmu.process_id; + default: + printf ("mmu_mrc read UNKNOWN - reg %d\n", creg); + data = 0; + break; + } +// printf("\t\t\t\t\tpc = 0x%08x\n", state->Reg[15]); + *value = data; + return data; +} + +void +sa_mmu_cache_ops (ARMul_State * state, ARMword instr, ARMword value) +{ + int CRm, OPC_2; + + CRm = BITS (0, 3); + OPC_2 = BITS (5, 7); + + if (OPC_2 == 0 && CRm == 7) { + mmu_cache_invalidate_all (state, I_CACHE ()); + mmu_cache_invalidate_all (state, MAIN_D_CACHE ()); + mmu_cache_invalidate_all (state, MINI_D_CACHE ()); + return; + } + + if (OPC_2 == 0 && CRm == 5) { + mmu_cache_invalidate_all (state, I_CACHE ()); + return; + } + + if (OPC_2 == 0 && CRm == 6) { + mmu_cache_invalidate_all (state, MAIN_D_CACHE ()); + mmu_cache_invalidate_all (state, MINI_D_CACHE ()); + return; + } + + if (OPC_2 == 1 && CRm == 6) { + mmu_cache_invalidate (state, MAIN_D_CACHE (), value); + mmu_cache_invalidate (state, MINI_D_CACHE (), value); + return; + } + + if (OPC_2 == 1 && CRm == 0xa) { + mmu_cache_clean (state, MAIN_D_CACHE (), value); + mmu_cache_clean (state, MINI_D_CACHE (), value); + return; + } + + if (OPC_2 == 4 && CRm == 0xa) { + mmu_wb_drain_all (state, WB ()); + return; + } + ERROR_LOG(ARM11, "Unknow OPC_2 = %x CRm = %x\n", OPC_2, CRm); +} + +static void +sa_mmu_tlb_ops (ARMul_State * state, ARMword instr, ARMword value) +{ + int CRm, OPC_2; + + CRm = BITS (0, 3); + OPC_2 = BITS (5, 7); + + + if (OPC_2 == 0 && CRm == 0x7) { + mmu_tlb_invalidate_all (state, I_TLB ()); + mmu_tlb_invalidate_all (state, D_TLB ()); + return; + } + + if (OPC_2 == 0 && CRm == 0x5) { + mmu_tlb_invalidate_all (state, I_TLB ()); + return; + } + + if (OPC_2 == 0 && CRm == 0x6) { + mmu_tlb_invalidate_all (state, D_TLB ()); + return; + } + + if (OPC_2 == 1 && CRm == 0x6) { + mmu_tlb_invalidate_entry (state, D_TLB (), value); + return; + } + + ERROR_LOG(ARM11, "Unknow OPC_2 = %x CRm = %x\n", OPC_2, CRm); +} + +static void +sa_mmu_rb_ops (ARMul_State * state, ARMword instr, ARMword value) +{ + int CRm, OPC_2; + + CRm = BITS (0, 3); + OPC_2 = BITS (5, 7); + + if (OPC_2 == 0x0 && CRm == 0x0) { + mmu_rb_invalidate_all (RB ()); + return; + } + + if (OPC_2 == 0x2) { + int idx = CRm & 0x3; + int type = ((CRm >> 2) & 0x3) + 1; + + if ((idx < 4) && (type < 4)) + mmu_rb_load (state, RB (), idx, type, value); + return; + } + + if ((OPC_2 == 1) && (CRm < 4)) { + mmu_rb_invalidate_entry (RB (), CRm); + return; + } + + ERROR_LOG(ARM11, "Unknow OPC_2 = %x CRm = %x\n", OPC_2, CRm); +} + +static ARMword +sa_mmu_mcr (ARMul_State * state, ARMword instr, ARMword value) +{ + mmu_regnum_t creg = (mmu_regnum_t)(BITS (16, 19) & 15); + if (!strncmp (state->cpu->cpu_arch_name, "armv4", 5)) { + switch (creg) { + case MMU_CONTROL: +// printf("mmu_mcr wrote CONTROL "); + state->mmu.control = (value | 0x70) & 0xFFFD; + break; + case MMU_TRANSLATION_TABLE_BASE: +// printf("mmu_mcr wrote TTB "); + state->mmu.translation_table_base = + value & 0xFFFFC000; + break; + case MMU_DOMAIN_ACCESS_CONTROL: +// printf("mmu_mcr wrote DACR "); + state->mmu.domain_access_control = value; + break; + + case MMU_FAULT_STATUS: + state->mmu.fault_status = value & 0xFF; + break; + case MMU_FAULT_ADDRESS: + state->mmu.fault_address = value; + break; + + case MMU_CACHE_OPS: + sa_mmu_cache_ops (state, instr, value); + break; + case MMU_TLB_OPS: + sa_mmu_tlb_ops (state, instr, value); + break; + case MMU_SA_RB_OPS: + sa_mmu_rb_ops (state, instr, value); + break; + case MMU_SA_DEBUG: + break; + case MMU_SA_CP15_R15: + break; + case MMU_PID: + //2004-06-06 lyh, bug provided by wen ye wenye@cs.ucsb.edu + state->mmu.process_id = value & 0x7e000000; + break; + + default: + printf ("mmu_mcr wrote UNKNOWN - reg %d\n", creg); + break; + } + } + return 0; +} + +//teawater add for arm2x86 2005.06.24------------------------------------------- +static int +sa_mmu_v2p_dbct (ARMul_State * state, ARMword virt_addr, ARMword * phys_addr) +{ + fault_t fault; + tlb_entry_t *tlb; + + virt_addr = mmu_pid_va_map (virt_addr); + if (MMU_Enabled) { + + /*align check */ + if ((virt_addr & (WORD_SIZE - 1)) && MMU_Aligned) { + DEBUG_LOG(ARM11, "align\n"); + return ALIGNMENT_FAULT; + } + else + virt_addr &= ~(WORD_SIZE - 1); + + /*translate tlb */ + fault = translate (state, virt_addr, I_TLB (), &tlb); + if (fault) { + DEBUG_LOG(ARM11, "translate\n"); + return fault; + } + + /*check access */ + fault = check_access (state, virt_addr, tlb, 1); + if (fault) { + DEBUG_LOG(ARM11, "check_fault\n"); + return fault; + } + } + + if (MMU_Disabled) { + *phys_addr = virt_addr; + } + else { + *phys_addr = tlb_va_to_pa (tlb, virt_addr); + } + + return (0); +} + +//AJ2D-------------------------------------------------------------------------- + +/*sa mmu_ops_t*/ +mmu_ops_t sa_mmu_ops = { + sa_mmu_init, + sa_mmu_exit, + sa_mmu_read_byte, + sa_mmu_write_byte, + sa_mmu_read_halfword, + sa_mmu_write_halfword, + sa_mmu_read_word, + sa_mmu_write_word, + sa_mmu_load_instr, + sa_mmu_mcr, + sa_mmu_mrc, +//teawater add for arm2x86 2005.06.24------------------------------------------- + sa_mmu_v2p_dbct, +//AJ2D-------------------------------------------------------------------------- +}; diff --git a/src/core/arm/interpreter/mmu/sa_mmu.h b/src/core/arm/interpreter/mmu/sa_mmu.h new file mode 100644 index 000000000..64b1c5470 --- /dev/null +++ b/src/core/arm/interpreter/mmu/sa_mmu.h @@ -0,0 +1,58 @@ +/* + sa_mmu.h - StrongARM Memory Management Unit emulation. + ARMulator extensions for SkyEye. + + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#ifndef _SA_MMU_H_ +#define _SA_MMU_H_ + + +/** + * The interface of read data from bus + */ +int bus_read(short size, int addr, uint32_t * value); + +/** + * The interface of write data from bus + */ +int bus_write(short size, int addr, uint32_t value); + + +typedef struct sa_mmu_s +{ + tlb_s i_tlb; + cache_s i_cache; + + tlb_s d_tlb; + cache_s main_d_cache; + cache_s mini_d_cache; + rb_s rb_t; + wb_s wb_t; +} sa_mmu_t; + +#define I_TLB() (&state->mmu.u.sa_mmu.i_tlb) +#define I_CACHE() (&state->mmu.u.sa_mmu.i_cache) + +#define D_TLB() (&state->mmu.u.sa_mmu.d_tlb) +#define MAIN_D_CACHE() (&state->mmu.u.sa_mmu.main_d_cache) +#define MINI_D_CACHE() (&state->mmu.u.sa_mmu.mini_d_cache) +#define WB() (&state->mmu.u.sa_mmu.wb_t) +#define RB() (&state->mmu.u.sa_mmu.rb_t) + +extern mmu_ops_t sa_mmu_ops; +#endif /*_SA_MMU_H_*/ diff --git a/src/core/arm/interpreter/mmu/tlb.cpp b/src/core/arm/interpreter/mmu/tlb.cpp new file mode 100644 index 000000000..ca60ac1a1 --- /dev/null +++ b/src/core/arm/interpreter/mmu/tlb.cpp @@ -0,0 +1,307 @@ +#include + +#include "core/arm/interpreter/armdefs.h" + +ARMword tlb_masks[] = { + 0x00000000, /* TLB_INVALID */ + 0xFFFFF000, /* TLB_SMALLPAGE */ + 0xFFFF0000, /* TLB_LARGEPAGE */ + 0xFFF00000, /* TLB_SECTION */ + 0xFFFFF000, /*TLB_ESMALLPAGE, have TEX attirbute, only for XScale */ + 0xFFFFFC00 /* TLB_TINYPAGE */ +}; + +/* This function encodes table 8-2 Interpreting AP bits, + returning non-zero if access is allowed. */ +static int +check_perms (ARMul_State * state, int ap, int read) +{ + int s, r, user; + + s = state->mmu.control & CONTROL_SYSTEM; + r = state->mmu.control & CONTROL_ROM; + //chy 2006-02-15 , should consider system mode, don't conside 26bit mode + user = (state->Mode == USER32MODE) || (state->Mode == USER26MODE) || (state->Mode == SYSTEM32MODE); + + switch (ap) { + case 0: + return read && ((s && !user) || r); + case 1: + return !user; + case 2: + return read || !user; + case 3: + return 1; + } + return 0; +} + +fault_t +check_access (ARMul_State * state, ARMword virt_addr, tlb_entry_t * tlb, + int read) +{ + int access; + + state->mmu.last_domain = tlb->domain; + access = (state->mmu.domain_access_control >> (tlb->domain * 2)) & 3; + if ((access == 0) || (access == 2)) { + /* It's unclear from the documentation whether this + should always raise a section domain fault, or if + it should be a page domain fault in the case of an + L1 that describes a page table. In the ARM710T + datasheets, "Figure 8-9: Sequence for checking faults" + seems to indicate the former, while "Table 8-4: Priority + encoding of fault status" gives a value for FS[3210] in + the event of a domain fault for a page. Hmm. */ + return SECTION_DOMAIN_FAULT; + } + if (access == 1) { + /* client access - check perms */ + int subpage, ap; + + switch (tlb->mapping) { + /*ks 2004-05-09 + * only for XScale + * Extend Small Page(ESP) Format + * 31-12 bits the base addr of ESP + * 11-10 bits SBZ + * 9-6 bits TEX + * 5-4 bits AP + * 3 bit C + * 2 bit B + * 1-0 bits 11 + * */ + case TLB_ESMALLPAGE: //xj + subpage = 0; + //printf("TLB_ESMALLPAGE virt_addr=0x%x \n",virt_addr ); + break; + + case TLB_TINYPAGE: + subpage = 0; + //printf("TLB_TINYPAGE virt_addr=0x%x \n",virt_addr ); + break; + + case TLB_SMALLPAGE: + subpage = (virt_addr >> 10) & 3; + break; + case TLB_LARGEPAGE: + subpage = (virt_addr >> 14) & 3; + break; + case TLB_SECTION: + subpage = 3; + break; + default: + assert (0); + subpage = 0; /* cleans a warning */ + } + ap = (tlb->perms >> (subpage * 2 + 4)) & 3; + if (!check_perms (state, ap, read)) { + if (tlb->mapping == TLB_SECTION) { + return SECTION_PERMISSION_FAULT; + } + else { + return SUBPAGE_PERMISSION_FAULT; + } + } + } + else { /* access == 3 */ + /* manager access - don't check perms */ + } + return NO_FAULT; +} + +fault_t +translate (ARMul_State * state, ARMword virt_addr, tlb_s * tlb_t, + tlb_entry_t ** tlb) +{ + *tlb = mmu_tlb_search (state, tlb_t, virt_addr); + if (!*tlb) { + /* walk the translation tables */ + ARMword l1addr, l1desc; + tlb_entry_t entry; + + l1addr = state->mmu.translation_table_base & 0xFFFFC000; + l1addr = (l1addr | (virt_addr >> 18)) & ~3; + //l1desc = mem_read_word (state, l1addr); + bus_read(32, l1addr, &l1desc); + switch (l1desc & 3) { + case 0: + /* + * according to Figure 3-9 Sequence for checking faults in arm manual, + * section translation fault should be returned here. + */ + { + return SECTION_TRANSLATION_FAULT; + } + case 3: + /* fine page table */ + // dcl 2006-01-08 + { + ARMword l2addr, l2desc; + + l2addr = l1desc & 0xFFFFF000; + l2addr = (l2addr | + ((virt_addr & 0x000FFC00) >> 8)) & + ~3; + //l2desc = mem_read_word (state, l2addr); + bus_read(32, l2addr, &l2desc); + + entry.virt_addr = virt_addr; + entry.phys_addr = l2desc; + entry.perms = l2desc & 0x00000FFC; + entry.domain = (l1desc >> 5) & 0x0000000F; + switch (l2desc & 3) { + case 0: + state->mmu.last_domain = entry.domain; + return PAGE_TRANSLATION_FAULT; + case 3: + entry.mapping = TLB_TINYPAGE; + break; + case 1: + // this is untested + entry.mapping = TLB_LARGEPAGE; + break; + case 2: + // this is untested + entry.mapping = TLB_SMALLPAGE; + break; + } + } + break; + case 1: + /* coarse page table */ + { + ARMword l2addr, l2desc; + + l2addr = l1desc & 0xFFFFFC00; + l2addr = (l2addr | + ((virt_addr & 0x000FF000) >> 10)) & + ~3; + //l2desc = mem_read_word (state, l2addr); + bus_read(32, l2addr, &l2desc); + + entry.virt_addr = virt_addr; + entry.phys_addr = l2desc; + entry.perms = l2desc & 0x00000FFC; + entry.domain = (l1desc >> 5) & 0x0000000F; + //printf("SKYEYE:PAGE virt_addr = %x,l1desc=%x,phys_addr=%x\n",virt_addr,l1desc,entry.phys_addr); + //chy 2003-09-02 for xscale + switch (l2desc & 3) { + case 0: + state->mmu.last_domain = entry.domain; + return PAGE_TRANSLATION_FAULT; + case 3: + if (!state->is_XScale) { + state->mmu.last_domain = + entry.domain; + return PAGE_TRANSLATION_FAULT; + }; + //ks 2004-05-09 xscale shold use Extend Small Page + //entry.mapping = TLB_SMALLPAGE; + entry.mapping = TLB_ESMALLPAGE; //xj + break; + case 1: + entry.mapping = TLB_LARGEPAGE; + break; + case 2: + entry.mapping = TLB_SMALLPAGE; + break; + } + } + break; + case 2: + /* section */ + //printf("SKYEYE:WARNING: not implement section mapping incompletely\n"); + //printf("SKYEYE:SECTION virt_addr = %x,l1desc=%x\n",virt_addr,l1desc); + //return SECTION_DOMAIN_FAULT; + //#if 0 + entry.virt_addr = virt_addr; + entry.phys_addr = l1desc; + entry.perms = l1desc & 0x00000C0C; + entry.domain = (l1desc >> 5) & 0x0000000F; + entry.mapping = TLB_SECTION; + break; + //#endif + } + entry.virt_addr &= tlb_masks[entry.mapping]; + entry.phys_addr &= tlb_masks[entry.mapping]; + + /* place entry in the tlb */ + *tlb = &tlb_t->entrys[tlb_t->cycle]; + tlb_t->cycle = (tlb_t->cycle + 1) % tlb_t->num; + **tlb = entry; + } + state->mmu.last_domain = (*tlb)->domain; + return NO_FAULT; +} + +int +mmu_tlb_init (tlb_s * tlb_t, int num) +{ + tlb_entry_t *e; + int i; + + e = (tlb_entry_t *) malloc (sizeof (*e) * num); + if (e == NULL) { + ERROR_LOG(ARM11, "malloc size %d\n", sizeof (*e) * num); + goto tlb_malloc_error; + } + tlb_t->entrys = e; + for (i = 0; i < num; i++, e++) + e->mapping = TLB_INVALID; + tlb_t->cycle = 0; + tlb_t->num = num; + return 0; + + tlb_malloc_error: + return -1; +} + +void +mmu_tlb_exit (tlb_s * tlb_t) +{ + free (tlb_t->entrys); +}; + +void +mmu_tlb_invalidate_all (ARMul_State * state, tlb_s * tlb_t) +{ + int entry; + + for (entry = 0; entry < tlb_t->num; entry++) { + tlb_t->entrys[entry].mapping = TLB_INVALID; + } + tlb_t->cycle = 0; +} + +void +mmu_tlb_invalidate_entry (ARMul_State * state, tlb_s * tlb_t, ARMword addr) +{ + tlb_entry_t *tlb; + + tlb = mmu_tlb_search (state, tlb_t, addr); + if (tlb) { + tlb->mapping = TLB_INVALID; + } +} + +tlb_entry_t * +mmu_tlb_search (ARMul_State * state, tlb_s * tlb_t, ARMword virt_addr) +{ + int entry; + + for (entry = 0; entry < tlb_t->num; entry++) { + tlb_entry_t *tlb; + ARMword mask; + + tlb = &(tlb_t->entrys[entry]); + if (tlb->mapping == TLB_INVALID) { + continue; + } + mask = tlb_masks[tlb->mapping]; + if ((virt_addr & mask) == (tlb->virt_addr & mask)) { + return tlb; + } + } + return NULL; +} diff --git a/src/core/arm/interpreter/mmu/tlb.h b/src/core/arm/interpreter/mmu/tlb.h index 938c01786..40856567b 100644 --- a/src/core/arm/interpreter/mmu/tlb.h +++ b/src/core/arm/interpreter/mmu/tlb.h @@ -63,14 +63,7 @@ typedef struct tlb_s #define tlb_b_flag(tlb) \ ((tlb)->perms & 0x4) -#define tlb_va_to_pa(tlb, va) \ -(\ - {\ - ARMword mask = tlb_masks[tlb->mapping]; \ - (tlb->phys_addr & mask) | (va & ~mask);\ - }\ -) - +#define tlb_va_to_pa(tlb, va) ((tlb->phys_addr & tlb_masks[tlb->mapping]) | (va & ~tlb_masks[tlb->mapping])) fault_t check_access (ARMul_State * state, ARMword virt_addr, tlb_entry_t * tlb, int read); diff --git a/src/core/arm/interpreter/mmu/wb.cpp b/src/core/arm/interpreter/mmu/wb.cpp new file mode 100644 index 000000000..82c0cec02 --- /dev/null +++ b/src/core/arm/interpreter/mmu/wb.cpp @@ -0,0 +1,149 @@ +#include "core/arm/interpreter/armdefs.h" + +/* wb_init + * @wb_t :wb_t to init + * @num :num of entrys + * @nb :num of byte of each entry + * + * $ -1:error + * 0:ok + * */ +int +mmu_wb_init (wb_s * wb_t, int num, int nb) +{ + int i; + wb_entry_t *entrys, *wb; + + entrys = (wb_entry_t *) malloc (sizeof (*entrys) * num); + if (entrys == NULL) { + ERROR_LOG(ARM11, "malloc size %d\n", sizeof (*entrys) * num); + goto entrys_malloc_error; + } + + for (wb = entrys, i = 0; i < num; i++, wb++) { + /*chy 2004-06-06, fix bug found by wenye@cs.ucsb.edu */ + //wb->data = (ARMword *)malloc(sizeof(ARMword) * nb); + wb->data = (ARMbyte *) malloc (nb); + if (wb->data == NULL) { + ERROR_LOG(ARM11, "malloc size of %d\n", nb); + goto data_malloc_error; + } + + }; + + wb_t->first = wb_t->last = wb_t->used = 0; + wb_t->num = num; + wb_t->nb = nb; + wb_t->entrys = entrys; + return 0; + + data_malloc_error: + while (--i >= 0) + free (entrys[i].data); + free (entrys); + entrys_malloc_error: + return -1; +}; + +/* wb_exit + * @wb_t :wb_t to exit + * */ +void +mmu_wb_exit (wb_s * wb_t) +{ + int i; + wb_entry_t *wb; + + wb = wb_t->entrys; + for (i = 0; i < wb_t->num; i++, wb++) { + free (wb->data); + } + free (wb_t->entrys); +}; + +/* wb_write_words :put words in Write Buffer + * @state: ARMul_State + * @wb_t: write buffer + * @pa: physical address + * @data: data ptr + * @n number of word to write + * + * Note: write buffer merge is not implemented, can be done late + * */ +void +mmu_wb_write_bytes (ARMul_State * state, wb_s * wb_t, ARMword pa, + ARMbyte * data, int n) +{ + int i; + wb_entry_t *wb; + + while (n) { + if (wb_t->num == wb_t->used) { + /*clean the last wb entry */ + ARMword t; + + wb = &wb_t->entrys[wb_t->last]; + t = wb->pa; + for (i = 0; i < wb->nb; i++) { + //mem_write_byte (state, t, wb->data[i]); + bus_write(8, t, wb->data[i]); + //t += WORD_SIZE; + t++; + } + wb_t->last++; + if (wb_t->last == wb_t->num) + wb_t->last = 0; + wb_t->used--; + } + + wb = &wb_t->entrys[wb_t->first]; + i = (n < wb_t->nb) ? n : wb_t->nb; + + wb->pa = pa; + //pa += i << WORD_SHT; + pa += i; + + wb->nb = i; + //memcpy(wb->data, data, i << WORD_SHT); + memcpy (wb->data, data, i); + data += i; + n -= i; + wb_t->first++; + if (wb_t->first == wb_t->num) + wb_t->first = 0; + wb_t->used++; + }; +//teawater add for set_dirty fflash cache function 2005.07.18------------------- +#ifdef DBCT + if (!skyeye_config.no_dbct) { + tb_setdirty (state, pa, NULL); + } +#endif +//AJ2D-------------------------------------------------------------------------- +} + +/* wb_drain_all + * @wb_t wb_t to drain + * */ +void +mmu_wb_drain_all (ARMul_State * state, wb_s * wb_t) +{ + ARMword pa; + wb_entry_t *wb; + int i; + + while (wb_t->used) { + wb = &wb_t->entrys[wb_t->last]; + pa = wb->pa; + for (i = 0; i < wb->nb; i++) { + //mem_write_byte (state, pa, wb->data[i]); + bus_write(8, pa, wb->data[i]); + //pa += WORD_SIZE; + pa++; + } + wb_t->last++; + if (wb_t->last == wb_t->num) + wb_t->last = 0; + wb_t->used--; + }; +} diff --git a/src/core/arm/interpreter/mmu/xscale_copro.cpp b/src/core/arm/interpreter/mmu/xscale_copro.cpp new file mode 100644 index 000000000..99cd77737 --- /dev/null +++ b/src/core/arm/interpreter/mmu/xscale_copro.cpp @@ -0,0 +1,1388 @@ +/* + armmmu.c - Memory Management Unit emulation. + ARMulator extensions for the ARM7100 family. + Copyright (C) 1999 Ben Williamson + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#include +#include + +#include "core/arm/interpreter/armdefs.h" +#include "core/arm/interpreter/armemu.h" + +/*#include "pxa.h" */ + +/* chy 2005-09-19 */ + +/* extern pxa270_io_t pxa270_io; */ +/* chy 2005-09-19 -----end */ + +typedef struct xscale_mmu_desc_s +{ + int i_tlb; + cache_desc_t i_cache; + + int d_tlb; + cache_desc_t main_d_cache; + cache_desc_t mini_d_cache; + //int rb; xscale has no read buffer + wb_desc_t wb; +} xscale_mmu_desc_t; + +static xscale_mmu_desc_t pxa_mmu_desc = { + 32, + {32, 32, 32, CACHE_WRITE_BACK}, + + 32, + {32, 32, 32, CACHE_WRITE_BACK}, + {32, 2, 8, CACHE_WRITE_BACK}, + {8, 16}, //for byte size, +}; + +//chy 2005-09-19 for cp6 +#define CR0_ICIP 0 +#define CR1_ICMR 1 +//chy 2005-09-19 ---end +//----------- for cp14----------------- +#define CCLKCFG 6 +#define PWRMODE 7 +typedef struct xscale_cp14_reg_s +{ + unsigned cclkcfg; //reg6 + unsigned pwrmode; //reg7 +} xscale_cp14_reg_s; + +xscale_cp14_reg_s pxa_cp14_regs; + +//-------------------------------------- + +static fault_t xscale_mmu_write (ARMul_State * state, ARMword va, + ARMword data, ARMword datatype); +static fault_t xscale_mmu_read (ARMul_State * state, ARMword va, + ARMword * data, ARMword datatype); + +ARMword xscale_mmu_mrc (ARMul_State * state, ARMword instr, ARMword * value); +ARMword xscale_mmu_mcr (ARMul_State * state, ARMword instr, ARMword value); + + +/* jeff add 2010.9.26 for pxa270 cp6*/ +#define PXA270_ICMR 0x40D00004 +#define PXA270_ICPR 0x40D00010 +#define PXA270_ICLR 0x40D00008 +//chy 2005-09-19 for xscale pxa27x cp6 +//unsigned +//xscale_cp6_mrc (ARMul_State * state, unsigned type, ARMword instr, +// ARMword * data) +//{ +// unsigned opcode_2 = BITS (5, 7); +// unsigned CRm = BITS (0, 3); +// unsigned reg = BITS (16, 19); +// unsigned result; +// +// //printf("SKYEYE: xscale_cp6_mrc:opcode_2 0x%x, CRm 0x%x, reg 0x%x,reg[15] 0x%x, instr %x\n",opcode_2,CRm,reg,state->Reg[15], instr); +// +// switch (reg) { +// case CR0_ICIP: { // cp 6 reg 0 +// //printf("cp6_mrc cr0 ICIP \n"); +// /* *data = (pxa270_io.icmr & pxa270_io.icpr) & ~pxa270_io.iclr; */ +// /* use bus_read get the pxa270 machine registers 2010.9.26 jeff*/ +// int icmr, icpr, iclr; +// bus_read(32, PXA270_ICMR, &icmr); +// bus_read(32, PXA270_ICPR, &icpr); +// bus_read(32, PXA270_ICLR, &iclr); +// *data = (icmr & icpr) & ~iclr; +// } +// break; +// case CR1_ICMR: { // cp 6 reg 1 +// //printf("cp6_mrc cr1 ICMR\n"); +// /* *data = pxa270_io.icmr; */ +// int icmr; +// /* use bus_read get the pxa270 machine registers 2010.9.26 jeff*/ +// bus_read(32, PXA270_ICMR, &icmr); +// *data = icmr; +// } +// break; +// default: +// *data = 0; +// printf ("SKYEYE:cp6_mrc unknown cp6 regs!!!!!!\n"); +// printf ("SKYEYE: xscale_cp6_mrc:opcode_2 0x%x, CRm 0x%x, reg 0x%x,reg[15] 0x%x, instr %x\n", opcode_2, CRm, reg, state->Reg[15], instr); +// break; +// } +// return 0; +//} +// +////chy 2005-09-19 end +////xscale cp13 ---------------------------------------------------- +//unsigned +//xscale_cp13_init (ARMul_State * state) +//{ +// //printf("SKYEYE: xscale_cp13_init: begin\n"); +// return 0; +//} +// +//unsigned +//xscale_cp13_exit (ARMul_State * state) +//{ +// //printf("SKYEYE: xscale_cp13_exit: begin\n"); +// return 0; +//} +// +//unsigned +//xscale_cp13_ldc (ARMul_State * state, unsigned type, ARMword instr, +// ARMword data) +//{ +// printf ("SKYEYE: xscale_cp13_ldc: ERROR isn't existed,"); +// SKYEYE_OUTREGS (stderr); +// fprintf (stderr, "\n"); +// // skyeye_exit (-1); +// return 0; //No matter return value, only for compiler. +//} +// +//unsigned +//xscale_cp13_stc (ARMul_State * state, unsigned type, ARMword instr, +// ARMword * data) +//{ +// printf ("SKYEYE: xscale_cp13_stc: ERROR isn't existed,"); +// SKYEYE_OUTREGS (stderr); +// fprintf (stderr, "\n"); +// // skyeye_exit (-1); +// return 0; //No matter return value, only for compiler. +//} +// +//unsigned +//xscale_cp13_mrc (ARMul_State * state, unsigned type, ARMword instr, +// ARMword * data) +//{ +// printf ("SKYEYE: xscale_cp13_mrc: ERROR isn't existed,"); +// SKYEYE_OUTREGS (stderr); +// fprintf (stderr, "\n"); +// // skyeye_exit (-1); +// return 0; //No matter return value, only for compiler. +//} +// +//unsigned +//xscale_cp13_mcr (ARMul_State * state, unsigned type, ARMword instr, +// ARMword data) +//{ +// printf ("SKYEYE: xscale_cp13_mcr: ERROR isn't existed,"); +// SKYEYE_OUTREGS (stderr); +// fprintf (stderr, "\n"); +// // skyeye_exit (-1); +// return 0; //No matter return value, only for compiler. +//} +// +//unsigned +//xscale_cp13_cdp (ARMul_State * state, unsigned type, ARMword instr) +//{ +// printf ("SKYEYE: xscale_cp13_cdp: ERROR isn't existed,"); +// SKYEYE_OUTREGS (stderr); +// fprintf (stderr, "\n"); +// // skyeye_exit (-1); +// return 0; //No matter return value, only for compiler. +//} +// +//unsigned +//xscale_cp13_read_reg (ARMul_State * state, unsigned reg, ARMword * data) +//{ +// printf ("SKYEYE: xscale_cp13_read_reg: ERROR isn't existed,"); +// SKYEYE_OUTREGS (stderr); +// fprintf (stderr, "\n"); +// return 0; +// //exit(-1); +//} +// +//unsigned +//xscale_cp13_write_reg (ARMul_State * state, unsigned reg, ARMword data) +//{ +// printf ("SKYEYE: xscale_cp13_write_reg: ERROR isn't existed,"); +// SKYEYE_OUTREGS (stderr); +// fprintf (stderr, "\n"); +// // skyeye_exit (-1); +// return 0; //No matter return value, only for compiler. +//} +// +////------------------------------------------------------------------ +////xscale cp14 ---------------------------------------------------- +//unsigned +//xscale_cp14_init (ARMul_State * state) +//{ +// //printf("SKYEYE: xscale_cp14_init: begin\n"); +// pxa_cp14_regs.cclkcfg = 0; +// pxa_cp14_regs.pwrmode = 0; +// return 0; +//} +// +//unsigned +//xscale_cp14_exit (ARMul_State * state) +//{ +// //printf("SKYEYE: xscale_cp14_exit: begin\n"); +// return 0; +//} +// +//unsigned +//xscale_cp14_ldc (ARMul_State * state, unsigned type, ARMword instr, +// ARMword data) +//{ +// printf ("SKYEYE: xscale_cp14_ldc: ERROR isn't existed, reg15 0x%x\n", +// state->Reg[15]); +// SKYEYE_OUTREGS (stderr); +// // skyeye_exit (-1); +// return 0; //No matter return value, only for compiler. +//} +// +//unsigned +//xscale_cp14_stc (ARMul_State * state, unsigned type, ARMword instr, +// ARMword * data) +//{ +// printf ("SKYEYE: xscale_cp14_stc: ERROR isn't existed, reg15 0x%x\n", +// state->Reg[15]); +// SKYEYE_OUTREGS (stderr); +// // skyeye_exit (-1); +// return 0; //No matter return value, only for compiler. +//} +// +//unsigned +//xscale_cp14_mrc (ARMul_State * state, unsigned type, ARMword instr, +// ARMword * data) +//{ +// unsigned opcode_2 = BITS (5, 7); +// unsigned CRm = BITS (0, 3); +// unsigned reg = BITS (16, 19); +// unsigned result; +// +// //printf("SKYEYE: xscale_cp14_mrc:opcode_2 0x%x, CRm 0x%x, reg 0x%x,reg[15] 0x%x, instr %x\n",opcode_2,CRm,reg,\ +// state->Reg[15], instr); +// +// switch (reg) { +// case CCLKCFG: // cp 14 reg 6 +// //printf("cp14_mrc cclkcfg \n"); +// *data = pxa_cp14_regs.cclkcfg; +// break; +// case PWRMODE: // cp 14 reg 7 +// //printf("cp14_mrc pwrmode \n"); +// *data = pxa_cp14_regs.pwrmode; +// break; +// default: +// *data = 0; +// printf ("SKYEYE:cp14_mrc unknown cp14 regs!!!!!!\n"); +// break; +// } +// return 0; +//} +//unsigned xscale_cp14_mcr (ARMul_State * state, unsigned type, ARMword instr, +// ARMword data) +//{ +// unsigned opcode_2 = BITS (5, 7); +// unsigned CRm = BITS (0, 3); +// unsigned reg = BITS (16, 19); +// unsigned result; +// +// //printf("SKYEYE: xscale_cp14_mcr:opcode_2 0x%x, CRm 0x%x, reg 0x%x,reg[15] 0x%x, instr %x\n",opcode_2,CRm,reg,\ +// state->Reg[15], instr); +// +// switch (reg) { +// case CCLKCFG: // cp 14 reg 6 +// //printf("cp14_mcr cclkcfg \n"); +// pxa_cp14_regs.cclkcfg = data & 0xf; +// break; +// case PWRMODE: // cp 14 reg 7 +// //printf("cp14_mcr pwrmode \n"); +// pxa_cp14_regs.pwrmode = data & 0x3; +// break; +// default:printf ("SKYEYE: cp14_mcr unknown cp14 regs!!!!!!\n"); +// break; +// } +// return 0; +//} +//unsigned xscale_cp14_cdp (ARMul_State * state, unsigned type, ARMword instr) +//{ +// printf ("SKYEYE: xscale_cp14_cdp: ERROR isn't existed, reg15 0x%x\n", +// state->Reg[15]); +// SKYEYE_OUTREGS (stderr); +// // skyeye_exit (-1); +// return 0; //No matter return value, only for compiler. +//} +//unsigned xscale_cp14_read_reg (ARMul_State * state, unsigned reg, +// ARMword * data) +//{ +// printf ("SKYEYE: xscale_cp14_read_reg: ERROR isn't existed, reg15 0x%x\n", state->Reg[15]); +// SKYEYE_OUTREGS (stderr); +// // skyeye_exit (-1); +// return 0; //No matter return value, only for compiler. +//} +//unsigned xscale_cp14_write_reg (ARMul_State * state, unsigned reg, +// ARMword data) +//{ +// printf ("SKYEYE: xscale_cp14_write_reg: ERROR isn't existed, reg15 0x%x\n", state->Reg[15]); +// SKYEYE_OUTREGS (stderr); +// // skyeye_exit (-1); +// +// return 0; //No matter return value, only for compiler. +//} + +//------------------------------------------------------------------ +//cp15 ------------------------------------- +unsigned xscale_cp15_ldc (ARMul_State * state, unsigned type, ARMword instr, + ARMword data) +{ + printf ("SKYEYE: xscale_cp15_ldc: ERROR isn't existed\n"); + SKYEYE_OUTREGS (stderr); + // skyeye_exit (-1); + + return 0; //No matter return value, only for compiler. +} +unsigned xscale_cp15_stc (ARMul_State * state, unsigned type, ARMword instr, + ARMword * data) +{ + printf ("SKYEYE: xscale_cp15_stc: ERROR isn't existed\n"); + SKYEYE_OUTREGS (stderr); + // skyeye_exit (-1); + + return 0; //No matter return value, only for compiler. +} +unsigned xscale_cp15_cdp (ARMul_State * state, unsigned type, ARMword instr) +{ + printf ("SKYEYE: xscale_cp15_cdp: ERROR isn't existed\n"); + SKYEYE_OUTREGS (stderr); + // skyeye_exit (-1); + + return 0; //No matter return value, only for compiler. +} +unsigned xscale_cp15_read_reg (ARMul_State * state, unsigned reg, + ARMword * data) +{ +//chy 2003-09-03: for xsacle_cp15_cp_access_allowed + if (reg == 15) { + *data = state->mmu.copro_access; + //printf("SKYEYE: xscale_cp15_read_reg: reg 0x%x,data %x\n",reg,*data); + return 0; + } + printf ("SKYEYE: xscale_cp15_read_reg: reg 0x%x, ERROR isn't existed\n", reg); + SKYEYE_OUTREGS (stderr); + // skyeye_exit (-1); + + return 0; //No matter return value, only for compiler. +} + +//chy 2003-09-03 used by macro CP_ACCESS_ALLOWED in armemu.h +unsigned xscale_cp15_cp_access_allowed (ARMul_State * state, unsigned reg, + unsigned cpnum) +{ + unsigned data; + + xscale_cp15_read_reg (state, reg, &data); + //printf("SKYEYE: cp15_cp_access_allowed data %x, cpnum %x, result %x\n", data, cpnum, (data & 1<mmu.fault_status = value & 0x6FF; + break; + case MMU_FAULT_ADDRESS: + //printf("SKYEYE:cp15_write_reg wrote FA val 0x%x \n",value); + state->mmu.fault_address = value; + break; + default: + printf ("SKYEYE: xscale_cp15_write_reg: reg 0x%x R15 %x ERROR isn't existed\n", reg, state->Reg[15]); + SKYEYE_OUTREGS (stderr); + // skyeye_exit (-1); + } + return 0; +} + +int xscale_cp15_init (ARMul_State * state) +{ + xscale_mmu_desc_t *desc; + cache_desc_t *c_desc; + + state->mmu.control = 0; + state->mmu.translation_table_base = 0xDEADC0DE; + state->mmu.domain_access_control = 0xDEADC0DE; + state->mmu.fault_status = 0; + state->mmu.fault_address = 0; + state->mmu.process_id = 0; + state->mmu.cache_type = 0xB1AA1AA; //0000 1011 0001 1010 1010 0001 1010 1010 + state->mmu.aux_control = 0; + + desc = &pxa_mmu_desc; + + if (mmu_tlb_init (I_TLB (), desc->i_tlb)) { + ERROR_LOG(ARM11, "i_tlb init %d\n", -1); + goto i_tlb_init_error; + } + + c_desc = &desc->i_cache; + if (mmu_cache_init (I_CACHE (), c_desc->width, c_desc->way, + c_desc->set, c_desc->w_mode)) { + ERROR_LOG(ARM11, "i_cache init %d\n", -1); + goto i_cache_init_error; + } + + if (mmu_tlb_init (D_TLB (), desc->d_tlb)) { + ERROR_LOG(ARM11, "d_tlb init %d\n", -1); + goto d_tlb_init_error; + } + + c_desc = &desc->main_d_cache; + if (mmu_cache_init (MAIN_D_CACHE (), c_desc->width, c_desc->way, + c_desc->set, c_desc->w_mode)) { + ERROR_LOG(ARM11, "main_d_cache init %d\n", -1); + goto main_d_cache_init_error; + } + + c_desc = &desc->mini_d_cache; + if (mmu_cache_init (MINI_D_CACHE (), c_desc->width, c_desc->way, + c_desc->set, c_desc->w_mode)) { + ERROR_LOG(ARM11, "mini_d_cache init %d\n", -1); + goto mini_d_cache_init_error; + } + + if (mmu_wb_init (WB (), desc->wb.num, desc->wb.nb)) { + ERROR_LOG(ARM11, "wb init %d\n", -1); + goto wb_init_error; + } +#if 0 + if (mmu_rb_init (RB (), desc->rb)) { + ERROR_LOG(ARM11, "rb init %d\n", -1); + goto rb_init_error; + } +#endif + + return 0; +#if 0 + rb_init_error: + mmu_wb_exit (WB ()); +#endif + wb_init_error: + mmu_cache_exit (MINI_D_CACHE ()); + mini_d_cache_init_error: + mmu_cache_exit (MAIN_D_CACHE ()); + main_d_cache_init_error: + mmu_tlb_exit (D_TLB ()); + d_tlb_init_error: + mmu_cache_exit (I_CACHE ()); + i_cache_init_error: + mmu_tlb_exit (I_TLB ()); + i_tlb_init_error: + return -1; +} + +void xscale_cp15_exit (ARMul_State * state) +{ + //mmu_rb_exit(RB()); + mmu_wb_exit (WB ()); + mmu_cache_exit (MINI_D_CACHE ()); + mmu_cache_exit (MAIN_D_CACHE ()); + mmu_tlb_exit (D_TLB ()); + mmu_cache_exit (I_CACHE ()); + mmu_tlb_exit (I_TLB ()); +}; + + +static fault_t + xscale_mmu_load_instr (ARMul_State * state, ARMword va, + ARMword * instr) +{ + fault_t fault; + tlb_entry_t *tlb; + cache_line_t *cache; + int c; //cache bit + ARMword pa; //physical addr + + static int debug_count = 0; //used for debug + + DEBUG_LOG(ARM11, "va = %x\n", va); + + va = mmu_pid_va_map (va); + if (MMU_Enabled) { + /*align check */ + if ((va & (INSN_SIZE - 1)) && MMU_Aligned) { + DEBUG_LOG(ARM11, "align\n"); + return ALIGNMENT_FAULT; + } + else + va &= ~(INSN_SIZE - 1); + + /*translate tlb */ + fault = translate (state, va, I_TLB (), &tlb); + if (fault) { + DEBUG_LOG(ARM11, "translate\n"); + return fault; + } + + /*check access */ + fault = check_access (state, va, tlb, 1); + if (fault) { + DEBUG_LOG(ARM11, "check_fault\n"); + return fault; + } + } + //chy 2003-09-02 for test, don't use cache ????? +#if 0 + /*search cache no matter MMU enabled/disabled */ + cache = mmu_cache_search (state, I_CACHE (), va); + if (cache) { + *instr = cache->data[va_cache_index (va, I_CACHE ())]; + return 0; + } +#endif + /*if MMU disabled or C flag is set alloc cache */ + if (MMU_Disabled) { + c = 1; + pa = va; + } + else { + c = tlb_c_flag (tlb); + pa = tlb_va_to_pa (tlb, va); + } + + //chy 2003-09-03 only read mem, don't use cache now,will change later ???? + //*instr = mem_read_word (state, pa); + bus_read(32, pa, instr); +#if 0 +//----------------------------------------------------------- + //chy 2003-09-02 for test???? + if (pa >= 0xa01c8000 && pa <= 0xa01c8020) { + printf ("SKYEYE:load_instr: pa %x, va %x,instr %x, R15 %x\n", + pa, va, *instr, state->Reg[15]); + } + +//---------------------------------------------------------------------- +#endif + return NO_FAULT; + + if (c) { + int index; + + debug_count++; + cache = mmu_cache_alloc (state, I_CACHE (), va, pa); + index = va_cache_index (va, I_CACHE ()); + *instr = cache->data[va_cache_index (va, I_CACHE ())]; + } + else + //*instr = mem_read_word (state, pa); + bus_read(32, pa, instr); + + return NO_FAULT; +}; + + + +static fault_t + xscale_mmu_read_byte (ARMul_State * state, ARMword virt_addr, + ARMword * data) +{ + //ARMword temp,offset; + fault_t fault; + fault = xscale_mmu_read (state, virt_addr, data, ARM_BYTE_TYPE); + return fault; +} + +static fault_t + xscale_mmu_read_halfword (ARMul_State * state, ARMword virt_addr, + ARMword * data) +{ + //ARMword temp,offset; + fault_t fault; + fault = xscale_mmu_read (state, virt_addr, data, ARM_HALFWORD_TYPE); + return fault; +} + +static fault_t + xscale_mmu_read_word (ARMul_State * state, ARMword virt_addr, + ARMword * data) +{ + return xscale_mmu_read (state, virt_addr, data, ARM_WORD_TYPE); +} + + + + +static fault_t + xscale_mmu_read (ARMul_State * state, ARMword va, ARMword * data, + ARMword datatype) +{ + fault_t fault; +// rb_entry_t *rb; + tlb_entry_t *tlb; + cache_line_t *cache; + ARMword pa, real_va, temp, offset; + //chy 2003-09-02 for test ???? + static unsigned chyst1 = 0, chyst2 = 0; + + DEBUG_LOG(ARM11, "va = %x\n", va); + + va = mmu_pid_va_map (va); + real_va = va; + /*if MMU disabled, memory_read */ + if (MMU_Disabled) { + //*data = mem_read_word(state, va); + if (datatype == ARM_BYTE_TYPE) + //*data = mem_read_byte (state, va); + bus_read(8, va, data); + else if (datatype == ARM_HALFWORD_TYPE) + //*data = mem_read_halfword (state, va); + bus_read(16, va, data); + else if (datatype == ARM_WORD_TYPE) + //*data = mem_read_word (state, va); + bus_read(32, va, data); + else { + printf ("SKYEYE:1 xscale_mmu_read error: unknown data type %d\n", datatype); + // skyeye_exit (-1); + } + + return NO_FAULT; + } + + /*align check */ + if (((va & 3) && (datatype == ARM_WORD_TYPE) && MMU_Aligned) || + ((va & 1) && (datatype == ARM_HALFWORD_TYPE) && MMU_Aligned)) { + DEBUG_LOG(ARM11, "align\n"); + return ALIGNMENT_FAULT; + } // else + + va &= ~(WORD_SIZE - 1); + + /*translate va to tlb */ + fault = translate (state, va, D_TLB (), &tlb); + if (fault) { + DEBUG_LOG(ARM11, "translate\n"); + return fault; + } + /*check access permission */ + fault = check_access (state, va, tlb, 1); + if (fault) + return fault; + +#if 0 +//------------------------------------------------ +//chy 2003-09-02 for test only ,should commit ???? + if (datatype == ARM_WORD_TYPE) { + if (real_va >= 0xffff0000 && real_va <= 0xffff0020) { + pa = tlb_va_to_pa (tlb, va); + *data = mem_read_word (state, pa); + chyst1++; + printf ("**SKYEYE:mmu_read word %d: pa %x, va %x, data %x, R15 %x\n", chyst1, pa, real_va, *data, state->Reg[15]); + /* + cache==mmu_cache_search(state,MAIN_D_CACHE(),va); + if(cache){ + *data = cache->data[va_cache_index(va, MAIN_D_CACHE())]; + printf("cached data %x\n",*data); + }else printf("no cached data\n"); + */ + } + } +//------------------------------------------------- +#endif +#if 0 + /*search in read buffer */ + rb = mmu_rb_search (RB (), va); + if (rb) { + if (rb->fault) + return rb->fault; + *data = rb->data[(va & (rb_masks[rb->type] - 1)) >> WORD_SHT]; + goto datatrans; + //return 0; + }; +#endif + + /*2004-07-19 chy: add support of xscale MMU CacheDisabled option */ + if (MMU_CacheDisabled) { + //if(1){ can be used to test cache error + /*get phy_addr */ + pa = tlb_va_to_pa (tlb, real_va); + if (datatype == ARM_BYTE_TYPE) + //*data = mem_read_byte (state, pa); + bus_read(8, pa, data); + else if (datatype == ARM_HALFWORD_TYPE) + //*data = mem_read_halfword (state, pa); + bus_read(16, pa, data); + else if (datatype == ARM_WORD_TYPE) + //*data = mem_read_word (state, pa); + bus_read(32, pa, data); + else { + printf ("SKYEYE:MMU_CacheDisabled xscale_mmu_read error: unknown data type %d\n", datatype); + // skyeye_exit (-1); + } + return NO_FAULT; + } + + + /*search main cache */ + cache = mmu_cache_search (state, MAIN_D_CACHE (), va); + if (cache) { + *data = cache->data[va_cache_index (va, MAIN_D_CACHE ())]; +#if 0 +//------------------------------------------------------------------------ +//chy 2003-09-02 for test only ,should commit ???? + if (real_va >= 0xffff0000 && real_va <= 0xffff0020) { + pa = tlb_va_to_pa (tlb, va); + chyst2++; + printf ("**SKYEYE:mmu_read wordk:cache %d: pa %x, va %x, data %x, R15 %x\n", chyst2, pa, real_va, *data, state->Reg[15]); + } +//------------------------------------------------------------------- +#endif + goto datatrans; + //return 0; + } + //chy 2003-08-24, now maybe we don't need minidcache ???? +#if 0 + /*search mini cache */ + cache = mmu_cache_search (state, MINI_D_CACHE (), va); + if (cache) { + *data = cache->data[va_cache_index (va, MINI_D_CACHE ())]; + goto datatrans; + //return 0; + } +#endif + /*get phy_addr */ + pa = tlb_va_to_pa (tlb, va); + //chy 2003-08-24 , in xscale it means what ????? +#if 0 + if ((pa >= 0xe0000000) && (pa < 0xe8000000)) { + + if (tlb_c_flag (tlb)) { + if (tlb_b_flag (tlb)) { + mmu_cache_soft_flush (state, MAIN_D_CACHE (), + pa); + } + else { + mmu_cache_soft_flush (state, MINI_D_CACHE (), + pa); + } + } + return 0; + } +#endif + //chy 2003-08-24, check phy addr + //ywc 2004-11-30, inactive this check because of using 0xc0000000 as the framebuffer start address + /* + if(pa >= 0xb0000000){ + printf("SKYEYE:xscale_mmu_read: phy address 0x%x error,reg[15] 0x%x\n",pa,state->Reg[15]); + return 0; + } + */ + + //chy 2003-08-24, now maybe we don't need wb ???? +#if 0 + /*if Buffer, drain Write Buffer first */ + if (tlb_b_flag (tlb)) + mmu_wb_drain_all (state, WB ()); +#endif + /*alloc cache or mem_read */ + if (tlb_c_flag (tlb) && MMU_DCacheEnabled) { + cache_s *cache_t; + + if (tlb_b_flag (tlb)) + cache_t = MAIN_D_CACHE (); + else + cache_t = MINI_D_CACHE (); + cache = mmu_cache_alloc (state, cache_t, va, pa); + *data = cache->data[va_cache_index (va, cache_t)]; + } + else { + //*data = mem_read_word(state, pa); + if (datatype == ARM_BYTE_TYPE) + //*data = mem_read_byte (state, pa | (real_va & 3)); + bus_read(8, pa | (real_va & 3), data); + else if (datatype == ARM_HALFWORD_TYPE) + //*data = mem_read_halfword (state, pa | (real_va & 2)); + bus_read(16, pa | (real_va & 2), data); + else if (datatype == ARM_WORD_TYPE) + //*data = mem_read_word (state, pa); + bus_read(32, pa, data); + else { + printf ("SKYEYE:2 xscale_mmu_read error: unknown data type %d\n", datatype); + // skyeye_exit (-1); + } + return NO_FAULT; + } + + + datatrans: + if (datatype == ARM_HALFWORD_TYPE) { + temp = *data; + offset = (((ARMword) state->bigendSig * 2) ^ (real_va & 2)) << 3; /* bit offset into the word */ + *data = (temp >> offset) & 0xffff; + } + else if (datatype == ARM_BYTE_TYPE) { + temp = *data; + offset = (((ARMword) state->bigendSig * 3) ^ (real_va & 3)) << 3; /* bit offset into the word */ + *data = (temp >> offset & 0xffL); + } + end: + return NO_FAULT; +} + + +static fault_t + xscale_mmu_write_byte (ARMul_State * state, ARMword virt_addr, + ARMword data) +{ + return xscale_mmu_write (state, virt_addr, data, ARM_BYTE_TYPE); +} + +static fault_t + xscale_mmu_write_halfword (ARMul_State * state, ARMword virt_addr, + ARMword data) +{ + return xscale_mmu_write (state, virt_addr, data, ARM_HALFWORD_TYPE); +} + +static fault_t + xscale_mmu_write_word (ARMul_State * state, ARMword virt_addr, + ARMword data) +{ + return xscale_mmu_write (state, virt_addr, data, ARM_WORD_TYPE); +} + + + +static fault_t + xscale_mmu_write (ARMul_State * state, ARMword va, ARMword data, + ARMword datatype) +{ + tlb_entry_t *tlb; + cache_line_t *cache; + cache_s *cache_t; + int b; + ARMword pa, real_va, temp, offset; + fault_t fault; + + ARMword index; +//chy 2003-09-02 for test ???? +// static unsigned chyst1=0,chyst2=0; + + DEBUG_LOG(ARM11, "va = %x, val = %x\n", va, data); + va = mmu_pid_va_map (va); + real_va = va; + + if (MMU_Disabled) { + //mem_write_word(state, va, data); + if (datatype == ARM_BYTE_TYPE) + //mem_write_byte (state, va, data); + bus_write(8, va, data); + else if (datatype == ARM_HALFWORD_TYPE) + //mem_write_halfword (state, va, data); + bus_write(16, va, data); + else if (datatype == ARM_WORD_TYPE) + //mem_write_word (state, va, data); + bus_write(32, va, data); + else { + printf ("SKYEYE:1 xscale_mmu_write error: unknown data type %d\n", datatype); + // skyeye_exit (-1); + } + + return NO_FAULT; + } + /*align check */ + if (((va & 3) && (datatype == ARM_WORD_TYPE) && MMU_Aligned) || + ((va & 1) && (datatype == ARM_HALFWORD_TYPE) && MMU_Aligned)) { + DEBUG_LOG(ARM11, "align\n"); + return ALIGNMENT_FAULT; + } //else + va &= ~(WORD_SIZE - 1); + /*tlb translate */ + fault = translate (state, va, D_TLB (), &tlb); + if (fault) { + DEBUG_LOG(ARM11, "translate\n"); + return fault; + } + /*tlb check access */ + fault = check_access (state, va, tlb, 0); + if (fault) { + DEBUG_LOG(ARM11, "check_access\n"); + return fault; + } + + /*2004-07-19 chy: add support for xscale MMU_CacheDisabled */ + if (MMU_CacheDisabled) { + //if(1){ can be used to test the cache error + /*get phy_addr */ + pa = tlb_va_to_pa (tlb, real_va); + if (datatype == ARM_BYTE_TYPE) + //mem_write_byte (state, pa, data); + bus_write(8, pa, data); + else if (datatype == ARM_HALFWORD_TYPE) + //mem_write_halfword (state, pa, data); + bus_write(16, pa, data); + else if (datatype == ARM_WORD_TYPE) + //mem_write_word (state, pa, data); + bus_write(32, pa , data); + else { + printf ("SKYEYE:MMU_CacheDisabled xscale_mmu_write error: unknown data type %d\n", datatype); + // skyeye_exit (-1); + } + + return NO_FAULT; + } + + /*search main cache */ + b = tlb_b_flag (tlb); + pa = tlb_va_to_pa (tlb, va); + cache = mmu_cache_search (state, MAIN_D_CACHE (), va); + if (cache) { + cache_t = MAIN_D_CACHE (); + goto has_cache; + } + //chy 2003-08-24, now maybe we don't need minidcache ???? +#if 0 + /*search mini cache */ + cache = mmu_cache_search (state, MINI_D_CACHE (), va); + if (cache) { + cache_t = MINI_D_CACHE (); + goto has_cache; + } +#endif + b = tlb_b_flag (tlb); + pa = tlb_va_to_pa (tlb, va); + //chy 2003-08-24, check phy addr 0xa0000000, size 0x04000000 + //ywc 2004-11-30, inactive this check because of using 0xc0000000 as the framebuffer start address + /* + if(pa >= 0xb0000000){ + printf("SKYEYE:xscale_mmu_write phy address 0x%x error,reg[15] 0x%x\n",pa,state->Reg[15]); + return 0; + } + */ + + //chy 2003-08-24, now maybe we don't need WB ???? +#if 0 + if (b) { + if (MMU_WBEnabled) { + if (datatype == ARM_WORD_TYPE) + mmu_wb_write_bytes (state, WB (), pa, &data, + 4); + else if (datatype == ARM_HALFWORD_TYPE) + mmu_wb_write_bytes (state, WB (), + (pa | (real_va & 2)), + &data, 2); + else if (datatype == ARM_BYTE_TYPE) + mmu_wb_write_bytes (state, WB (), + (pa | (real_va & 3)), + &data, 1); + + } + else { + if (datatype == ARM_WORD_TYPE) + mem_write_word (state, pa, data); + else if (datatype == ARM_HALFWORD_TYPE) + mem_write_halfword (state, + (pa | (real_va & 2)), + data); + else if (datatype == ARM_BYTE_TYPE) + mem_write_byte (state, (pa | (real_va & 3)), + data); + } + } + else { + + mmu_wb_drain_all (state, WB ()); + + if (datatype == ARM_WORD_TYPE) + mem_write_word (state, pa, data); + else if (datatype == ARM_HALFWORD_TYPE) + mem_write_halfword (state, (pa | (real_va & 2)), + data); + else if (datatype == ARM_BYTE_TYPE) + mem_write_byte (state, (pa | (real_va & 3)), data); + } +#endif + //chy 2003-08-24, just write phy addr + if (datatype == ARM_WORD_TYPE) + //mem_write_word (state, pa, data); + bus_write(32, pa, data); + else if (datatype == ARM_HALFWORD_TYPE) + //mem_write_halfword (state, (pa | (real_va & 2)), data); + bus_write(16, pa | (real_va & 2), data); + else if (datatype == ARM_BYTE_TYPE) + //mem_write_byte (state, (pa | (real_va & 3)), data); + bus_write(8, (pa | (real_va & 3)), data); +#if 0 +//------------------------------------------------------------- +//chy 2003-09-02 for test ???? + if (datatype == ARM_WORD_TYPE) { + if (real_va >= 0xffff0000 && real_va <= 0xffff0020) { + printf ("**SKYEYE:mmu_write word: pa %x, va %x, data %x, R15 %x \n", pa, real_va, data, state->Reg[15]); + } + } +//-------------------------------------------------------------- +#endif + return NO_FAULT; + + has_cache: + index = va_cache_index (va, cache_t); + //cache->data[index] = data; + + if (datatype == ARM_WORD_TYPE) + cache->data[index] = data; + else if (datatype == ARM_HALFWORD_TYPE) { + temp = cache->data[index]; + offset = (((ARMword) state->bigendSig * 2) ^ (real_va & 2)) << 3; /* bit offset into the word */ + cache->data[index] = + (temp & ~(0xffffL << offset)) | ((data & 0xffffL) << + offset); + } + else if (datatype == ARM_BYTE_TYPE) { + temp = cache->data[index]; + offset = (((ARMword) state->bigendSig * 3) ^ (real_va & 3)) << 3; /* bit offset into the word */ + cache->data[index] = + (temp & ~(0xffL << offset)) | ((data & 0xffL) << + offset); + } + + if (index < (cache_t->width >> (WORD_SHT + 1))) + cache->tag |= TAG_FIRST_HALF_DIRTY; + else + cache->tag |= TAG_LAST_HALF_DIRTY; +//------------------------------------------------------------- +//chy 2003-09-03 be sure the changed value will be in memory as soon as possible, so I cache can get the newest value +#if 0 + { + if (datatype == ARM_WORD_TYPE) + mem_write_word (state, pa, data); + else if (datatype == ARM_HALFWORD_TYPE) + mem_write_halfword (state, (pa | (real_va & 2)), + data); + else if (datatype == ARM_BYTE_TYPE) + mem_write_byte (state, (pa | (real_va & 3)), data); + } +#endif +#if 0 +//chy 2003-09-02 for test ???? + if (datatype == ARM_WORD_TYPE) { + if (real_va >= 0xffff0000 && real_va <= 0xffff0020) { + printf ("**SKYEYE:mmu_write word:cache: pa %x, va %x, data %x, R15 %x\n", pa, real_va, data, state->Reg[15]); + } + } +//------------------------------------------------------------- +#endif + if (datatype == ARM_WORD_TYPE) + //mem_write_word (state, pa, data); + bus_write(32, pa, data); + else if (datatype == ARM_HALFWORD_TYPE) + //mem_write_halfword (state, (pa | (real_va & 2)), data); + bus_write(16, pa | (real_va & 2), data); + else if (datatype == ARM_BYTE_TYPE) + //mem_write_byte (state, (pa | (real_va & 3)), data); + bus_write(8, (pa | (real_va & 3)), data); + return NO_FAULT; +} + +ARMword xscale_cp15_mrc (ARMul_State * state, + unsigned type, ARMword instr, ARMword * value) +{ + return xscale_mmu_mrc (state, instr, value); +} + +ARMword xscale_mmu_mrc (ARMul_State * state, ARMword instr, ARMword * value) +{ + ARMword data; + unsigned opcode_2 = BITS (5, 7); + unsigned CRm = BITS (0, 3); + unsigned reg = BITS (16, 19); + unsigned result; + mmu_regnum_t creg = (mmu_regnum_t)reg; + +/* + printf("SKYEYE: xscale_cp15_mrc:opcode_2 0x%x, CRm 0x%x, reg 0x%x,reg[15] 0x%x, instr %x\n",opcode_2,CRm,reg,\ + state->Reg[15], instr); +*/ + switch (creg) { + case MMU_ID: //XSCALE_CP15 + //printf("mmu_mrc read ID \n"); + data = (opcode_2 ? state->mmu.cache_type : state->cpu-> + cpu_val); + break; + case MMU_CONTROL: //XSCALE_CP15_AUX_CONTROL + //printf("mmu_mrc read CONTROL \n"); + data = (opcode_2 ? state->mmu.aux_control : state->mmu. + control); + break; + case MMU_TRANSLATION_TABLE_BASE: + //printf("mmu_mrc read TTB \n"); + data = state->mmu.translation_table_base; + break; + case MMU_DOMAIN_ACCESS_CONTROL: + //printf("mmu_mrc read DACR \n"); + data = state->mmu.domain_access_control; + break; + case MMU_FAULT_STATUS: + //printf("mmu_mrc read FSR \n"); + data = state->mmu.fault_status; + break; + case MMU_FAULT_ADDRESS: + //printf("mmu_mrc read FAR \n"); + data = state->mmu.fault_address; + break; + case MMU_PID: + //printf("mmu_mrc read PID \n"); + data = state->mmu.process_id; + case XSCALE_CP15_COPRO_ACCESS: + //printf("xscale cp15 read coprocessor access\n"); + data = state->mmu.copro_access; + break; + default: + data = 0; + printf ("SKYEYE: xscale_cp15_mrc read UNKNOWN - reg %d, pc 0x%x\n", creg, state->Reg[15]); + // skyeye_exit (-1); + break; + } + *value = data; + //printf("SKYEYE: xscale_cp15_mrc:end value 0x%x\n",data); + return ARMul_DONE; +} + +void xscale_cp15_cache_ops (ARMul_State * state, ARMword instr, ARMword value) +{ +//chy: 2003-08-24 now, the BTB isn't simualted ....???? + + unsigned CRm, OPC_2; + + CRm = BITS (0, 3); + OPC_2 = BITS (5, 7); + //err_msg("SKYEYE: xscale cp15_cache_ops:OPC_2 = 0x%x CRm = 0x%x, Reg15 0x%x\n", OPC_2, CRm,state->Reg[15]); + + if (OPC_2 == 0 && CRm == 7) { + mmu_cache_invalidate_all (state, I_CACHE ()); + mmu_cache_invalidate_all (state, MAIN_D_CACHE ()); + return; + } + + if (OPC_2 == 0 && CRm == 5) { + mmu_cache_invalidate_all (state, I_CACHE ()); + return; + } + if (OPC_2 == 1 && CRm == 5) { + mmu_cache_invalidate (state, I_CACHE (), value); + return; + } + + if (OPC_2 == 0 && CRm == 6) { + mmu_cache_invalidate_all (state, MAIN_D_CACHE ()); + return; + } + + if (OPC_2 == 1 && CRm == 6) { + mmu_cache_invalidate (state, MAIN_D_CACHE (), value); + return; + } + + if (OPC_2 == 1 && CRm == 0xa) { + mmu_cache_clean (state, MAIN_D_CACHE (), value); + return; + } + + if (OPC_2 == 4 && CRm == 0xa) { + mmu_wb_drain_all (state, WB ()); + return; + } + + if (OPC_2 == 6 && CRm == 5) { + //chy 2004-07-19 shoud fix in the future????!!!! + //printf("SKYEYE: xscale_cp15_cache_ops:invalidate BTB CANT!!!!!!!!!!\n"); + //exit(-1); + return; + } + + if (OPC_2 == 5 && CRm == 2) { + //printf("SKYEYE: cp15_c_o: A L in D C, value %x, reg15 %x\n",value, state->Reg[15]); + //exit(-1); + //chy 2003-09-01 for test + mmu_cache_invalidate_all (state, MAIN_D_CACHE ()); + return; + } + + ERROR_LOG(ARM11, "SKYEYE: xscale cp15_cache_ops:Unknown OPC_2 = 0x%x CRm = 0x%x, Reg15 0x%x\n", OPC_2, CRm, state->Reg[15]); + // skyeye_exit (-1); +} + +static void + xscale_cp15_tlb_ops (ARMul_State * state, ARMword instr, + ARMword value) +{ + int CRm, OPC_2; + + CRm = BITS (0, 3); + OPC_2 = BITS (5, 7); + + + //err_msg("SKYEYE:xscale_cp15_tlb_ops:OPC_2 = 0x%x CRm = 0x%x,Reg[15] 0x%x\n", OPC_2, CRm,state->Reg[15]); + if (OPC_2 == 0 && CRm == 0x7) { + mmu_tlb_invalidate_all (state, I_TLB ()); + mmu_tlb_invalidate_all (state, D_TLB ()); + return; + } + + if (OPC_2 == 0 && CRm == 0x5) { + mmu_tlb_invalidate_all (state, I_TLB ()); + return; + } + + if (OPC_2 == 1 && CRm == 0x5) { + mmu_tlb_invalidate_entry (state, I_TLB (), value); + return; + } + + if (OPC_2 == 0 && CRm == 0x6) { + mmu_tlb_invalidate_all (state, D_TLB ()); + return; + } + + if (OPC_2 == 1 && CRm == 0x6) { + mmu_tlb_invalidate_entry (state, D_TLB (), value); + return; + } + + ERROR_LOG(ARM11, "SKYEYE:xscale_cp15_tlb_ops:Unknow OPC_2 = 0x%x CRm = 0x%x,Reg[15] 0x%x\n", OPC_2, CRm, state->Reg[15]); + // skyeye_exit (-1); +} + + +ARMword xscale_cp15_mcr (ARMul_State * state, + unsigned type, ARMword instr, ARMword value) +{ + return xscale_mmu_mcr (state, instr, value); +} + +ARMword xscale_mmu_mcr (ARMul_State * state, ARMword instr, ARMword value) +{ + ARMword data; + unsigned opcode_2 = BITS (5, 7); + unsigned CRm = BITS (0, 3); + unsigned reg = BITS (16, 19); + unsigned result; + mmu_regnum_t creg = (mmu_regnum_t)reg; + + //printf("SKYEYE: xscale_cp15_mcr: opcode_2 0x%x, CRm 0x%x, reg ox%x, value 0x%x, reg[15] 0x%x, instr 0x%x\n",opcode_2,CRm,reg, value, state->Reg[15], instr); + + switch (creg) { + case MMU_CONTROL: + //printf("mmu_mcr wrote CONTROL val 0x%x \n",value); + state->mmu.control = + (opcode_2 ? (value & 0x33) : (value & 0x3FFF)); + break; + case MMU_TRANSLATION_TABLE_BASE: + //printf("mmu_mcr wrote TTB val 0x%x \n",value); + state->mmu.translation_table_base = value & 0xFFFFC000; + break; + case MMU_DOMAIN_ACCESS_CONTROL: + //printf("mmu_mcr wrote DACR val 0x%x \n",value); + state->mmu.domain_access_control = value; + break; + + case MMU_FAULT_STATUS: + //printf("mmu_mcr wrote FS val 0x%x \n",value); + state->mmu.fault_status = value & 0x6FF; + break; + case MMU_FAULT_ADDRESS: + //printf("mmu_mcr wrote FA val 0x%x \n",value); + state->mmu.fault_address = value; + break; + + case MMU_CACHE_OPS: +// printf("mmu_mcr wrote CO val 0x%x \n",value); + xscale_cp15_cache_ops (state, instr, value); + break; + case MMU_TLB_OPS: + //printf("mmu_mcr wrote TO val 0x%x \n",value); + xscale_cp15_tlb_ops (state, instr, value); + break; + case MMU_PID: + //printf("mmu_mcr wrote PID val 0x%x \n",value); + state->mmu.process_id = value & 0xfe000000; + break; + case XSCALE_CP15_COPRO_ACCESS: + //printf("xscale cp15 write coprocessor access val 0x %x\n",value); + state->mmu.copro_access = value & 0x3ff; + break; + + default: + printf ("SKYEYE: xscale_cp15_mcr wrote UNKNOWN - reg %d, reg15 0x%x\n", creg, state->Reg[15]); + break; + } + //printf("SKYEYE: xscale_cp15_mcr wrote val 0x%x\n", value); + return 0; +} + +//teawater add for arm2x86 2005.06.24------------------------------------------- +static int xscale_mmu_v2p_dbct (ARMul_State * state, ARMword virt_addr, + ARMword * phys_addr) +{ + fault_t fault; + tlb_entry_t *tlb; + + virt_addr = mmu_pid_va_map (virt_addr); + if (MMU_Enabled) { + + /*align check */ + if ((virt_addr & (WORD_SIZE - 1)) && MMU_Aligned) { + DEBUG_LOG(ARM11, "align\n"); + return ALIGNMENT_FAULT; + } + else + virt_addr &= ~(WORD_SIZE - 1); + + /*translate tlb */ + fault = translate (state, virt_addr, I_TLB (), &tlb); + if (fault) { + DEBUG_LOG(ARM11, "translate\n"); + return fault; + } + + /*check access */ + fault = check_access (state, virt_addr, tlb, 1); + if (fault) { + DEBUG_LOG(ARM11, "check_fault\n"); + return fault; + } + } + + if (MMU_Disabled) { + *phys_addr = virt_addr; + } + else { + *phys_addr = tlb_va_to_pa (tlb, virt_addr); + } + + return (0); +} + +//AJ2D-------------------------------------------------------------------------- + +/*xscale mmu_ops_t*/ +mmu_ops_t xscale_mmu_ops = { + xscale_cp15_init, + xscale_cp15_exit, + xscale_mmu_read_byte, + xscale_mmu_write_byte, + xscale_mmu_read_halfword, + xscale_mmu_write_halfword, + xscale_mmu_read_word, + xscale_mmu_write_word, + xscale_mmu_load_instr, xscale_mmu_mcr, xscale_mmu_mrc, +//teawater add for arm2x86 2005.06.24------------------------------------------- + xscale_mmu_v2p_dbct, +//AJ2D-------------------------------------------------------------------------- +}; -- cgit v1.2.3 From ad49d481a8f3e53f18eb105a3add80a9546d1879 Mon Sep 17 00:00:00 2001 From: bunnei Date: Fri, 16 May 2014 00:23:36 -0400 Subject: added missing armcopro from skyeye --- src/core/arm/interpreter/mmu/xscale_copro.cpp | 498 +++++++++++++------------- 1 file changed, 249 insertions(+), 249 deletions(-) (limited to 'src/core/arm/interpreter/mmu') diff --git a/src/core/arm/interpreter/mmu/xscale_copro.cpp b/src/core/arm/interpreter/mmu/xscale_copro.cpp index 99cd77737..a006cb102 100644 --- a/src/core/arm/interpreter/mmu/xscale_copro.cpp +++ b/src/core/arm/interpreter/mmu/xscale_copro.cpp @@ -84,255 +84,255 @@ ARMword xscale_mmu_mcr (ARMul_State * state, ARMword instr, ARMword value); #define PXA270_ICPR 0x40D00010 #define PXA270_ICLR 0x40D00008 //chy 2005-09-19 for xscale pxa27x cp6 -//unsigned -//xscale_cp6_mrc (ARMul_State * state, unsigned type, ARMword instr, -// ARMword * data) -//{ -// unsigned opcode_2 = BITS (5, 7); -// unsigned CRm = BITS (0, 3); -// unsigned reg = BITS (16, 19); -// unsigned result; -// -// //printf("SKYEYE: xscale_cp6_mrc:opcode_2 0x%x, CRm 0x%x, reg 0x%x,reg[15] 0x%x, instr %x\n",opcode_2,CRm,reg,state->Reg[15], instr); -// -// switch (reg) { -// case CR0_ICIP: { // cp 6 reg 0 -// //printf("cp6_mrc cr0 ICIP \n"); -// /* *data = (pxa270_io.icmr & pxa270_io.icpr) & ~pxa270_io.iclr; */ -// /* use bus_read get the pxa270 machine registers 2010.9.26 jeff*/ -// int icmr, icpr, iclr; -// bus_read(32, PXA270_ICMR, &icmr); -// bus_read(32, PXA270_ICPR, &icpr); -// bus_read(32, PXA270_ICLR, &iclr); -// *data = (icmr & icpr) & ~iclr; -// } -// break; -// case CR1_ICMR: { // cp 6 reg 1 -// //printf("cp6_mrc cr1 ICMR\n"); -// /* *data = pxa270_io.icmr; */ -// int icmr; -// /* use bus_read get the pxa270 machine registers 2010.9.26 jeff*/ -// bus_read(32, PXA270_ICMR, &icmr); -// *data = icmr; -// } -// break; -// default: -// *data = 0; -// printf ("SKYEYE:cp6_mrc unknown cp6 regs!!!!!!\n"); -// printf ("SKYEYE: xscale_cp6_mrc:opcode_2 0x%x, CRm 0x%x, reg 0x%x,reg[15] 0x%x, instr %x\n", opcode_2, CRm, reg, state->Reg[15], instr); -// break; -// } -// return 0; -//} -// -////chy 2005-09-19 end -////xscale cp13 ---------------------------------------------------- -//unsigned -//xscale_cp13_init (ARMul_State * state) -//{ -// //printf("SKYEYE: xscale_cp13_init: begin\n"); -// return 0; -//} -// -//unsigned -//xscale_cp13_exit (ARMul_State * state) -//{ -// //printf("SKYEYE: xscale_cp13_exit: begin\n"); -// return 0; -//} -// -//unsigned -//xscale_cp13_ldc (ARMul_State * state, unsigned type, ARMword instr, -// ARMword data) -//{ -// printf ("SKYEYE: xscale_cp13_ldc: ERROR isn't existed,"); -// SKYEYE_OUTREGS (stderr); -// fprintf (stderr, "\n"); -// // skyeye_exit (-1); -// return 0; //No matter return value, only for compiler. -//} -// -//unsigned -//xscale_cp13_stc (ARMul_State * state, unsigned type, ARMword instr, -// ARMword * data) -//{ -// printf ("SKYEYE: xscale_cp13_stc: ERROR isn't existed,"); -// SKYEYE_OUTREGS (stderr); -// fprintf (stderr, "\n"); -// // skyeye_exit (-1); -// return 0; //No matter return value, only for compiler. -//} -// -//unsigned -//xscale_cp13_mrc (ARMul_State * state, unsigned type, ARMword instr, -// ARMword * data) -//{ -// printf ("SKYEYE: xscale_cp13_mrc: ERROR isn't existed,"); -// SKYEYE_OUTREGS (stderr); -// fprintf (stderr, "\n"); -// // skyeye_exit (-1); -// return 0; //No matter return value, only for compiler. -//} -// -//unsigned -//xscale_cp13_mcr (ARMul_State * state, unsigned type, ARMword instr, -// ARMword data) -//{ -// printf ("SKYEYE: xscale_cp13_mcr: ERROR isn't existed,"); -// SKYEYE_OUTREGS (stderr); -// fprintf (stderr, "\n"); -// // skyeye_exit (-1); -// return 0; //No matter return value, only for compiler. -//} -// -//unsigned -//xscale_cp13_cdp (ARMul_State * state, unsigned type, ARMword instr) -//{ -// printf ("SKYEYE: xscale_cp13_cdp: ERROR isn't existed,"); -// SKYEYE_OUTREGS (stderr); -// fprintf (stderr, "\n"); -// // skyeye_exit (-1); -// return 0; //No matter return value, only for compiler. -//} -// -//unsigned -//xscale_cp13_read_reg (ARMul_State * state, unsigned reg, ARMword * data) -//{ -// printf ("SKYEYE: xscale_cp13_read_reg: ERROR isn't existed,"); -// SKYEYE_OUTREGS (stderr); -// fprintf (stderr, "\n"); -// return 0; -// //exit(-1); -//} -// -//unsigned -//xscale_cp13_write_reg (ARMul_State * state, unsigned reg, ARMword data) -//{ -// printf ("SKYEYE: xscale_cp13_write_reg: ERROR isn't existed,"); -// SKYEYE_OUTREGS (stderr); -// fprintf (stderr, "\n"); -// // skyeye_exit (-1); -// return 0; //No matter return value, only for compiler. -//} -// -////------------------------------------------------------------------ -////xscale cp14 ---------------------------------------------------- -//unsigned -//xscale_cp14_init (ARMul_State * state) -//{ -// //printf("SKYEYE: xscale_cp14_init: begin\n"); -// pxa_cp14_regs.cclkcfg = 0; -// pxa_cp14_regs.pwrmode = 0; -// return 0; -//} -// -//unsigned -//xscale_cp14_exit (ARMul_State * state) -//{ -// //printf("SKYEYE: xscale_cp14_exit: begin\n"); -// return 0; -//} -// -//unsigned -//xscale_cp14_ldc (ARMul_State * state, unsigned type, ARMword instr, -// ARMword data) -//{ -// printf ("SKYEYE: xscale_cp14_ldc: ERROR isn't existed, reg15 0x%x\n", -// state->Reg[15]); -// SKYEYE_OUTREGS (stderr); -// // skyeye_exit (-1); -// return 0; //No matter return value, only for compiler. -//} -// -//unsigned -//xscale_cp14_stc (ARMul_State * state, unsigned type, ARMword instr, -// ARMword * data) -//{ -// printf ("SKYEYE: xscale_cp14_stc: ERROR isn't existed, reg15 0x%x\n", -// state->Reg[15]); -// SKYEYE_OUTREGS (stderr); -// // skyeye_exit (-1); -// return 0; //No matter return value, only for compiler. -//} -// -//unsigned -//xscale_cp14_mrc (ARMul_State * state, unsigned type, ARMword instr, -// ARMword * data) -//{ -// unsigned opcode_2 = BITS (5, 7); -// unsigned CRm = BITS (0, 3); -// unsigned reg = BITS (16, 19); -// unsigned result; -// -// //printf("SKYEYE: xscale_cp14_mrc:opcode_2 0x%x, CRm 0x%x, reg 0x%x,reg[15] 0x%x, instr %x\n",opcode_2,CRm,reg,\ -// state->Reg[15], instr); -// -// switch (reg) { -// case CCLKCFG: // cp 14 reg 6 -// //printf("cp14_mrc cclkcfg \n"); -// *data = pxa_cp14_regs.cclkcfg; -// break; -// case PWRMODE: // cp 14 reg 7 -// //printf("cp14_mrc pwrmode \n"); -// *data = pxa_cp14_regs.pwrmode; -// break; -// default: -// *data = 0; -// printf ("SKYEYE:cp14_mrc unknown cp14 regs!!!!!!\n"); -// break; -// } -// return 0; -//} -//unsigned xscale_cp14_mcr (ARMul_State * state, unsigned type, ARMword instr, -// ARMword data) -//{ -// unsigned opcode_2 = BITS (5, 7); -// unsigned CRm = BITS (0, 3); -// unsigned reg = BITS (16, 19); -// unsigned result; -// -// //printf("SKYEYE: xscale_cp14_mcr:opcode_2 0x%x, CRm 0x%x, reg 0x%x,reg[15] 0x%x, instr %x\n",opcode_2,CRm,reg,\ -// state->Reg[15], instr); -// -// switch (reg) { -// case CCLKCFG: // cp 14 reg 6 -// //printf("cp14_mcr cclkcfg \n"); -// pxa_cp14_regs.cclkcfg = data & 0xf; -// break; -// case PWRMODE: // cp 14 reg 7 -// //printf("cp14_mcr pwrmode \n"); -// pxa_cp14_regs.pwrmode = data & 0x3; -// break; -// default:printf ("SKYEYE: cp14_mcr unknown cp14 regs!!!!!!\n"); -// break; -// } -// return 0; -//} -//unsigned xscale_cp14_cdp (ARMul_State * state, unsigned type, ARMword instr) -//{ -// printf ("SKYEYE: xscale_cp14_cdp: ERROR isn't existed, reg15 0x%x\n", -// state->Reg[15]); -// SKYEYE_OUTREGS (stderr); -// // skyeye_exit (-1); -// return 0; //No matter return value, only for compiler. -//} -//unsigned xscale_cp14_read_reg (ARMul_State * state, unsigned reg, -// ARMword * data) -//{ -// printf ("SKYEYE: xscale_cp14_read_reg: ERROR isn't existed, reg15 0x%x\n", state->Reg[15]); -// SKYEYE_OUTREGS (stderr); -// // skyeye_exit (-1); -// return 0; //No matter return value, only for compiler. -//} -//unsigned xscale_cp14_write_reg (ARMul_State * state, unsigned reg, -// ARMword data) -//{ -// printf ("SKYEYE: xscale_cp14_write_reg: ERROR isn't existed, reg15 0x%x\n", state->Reg[15]); -// SKYEYE_OUTREGS (stderr); -// // skyeye_exit (-1); -// -// return 0; //No matter return value, only for compiler. -//} +unsigned +xscale_cp6_mrc (ARMul_State * state, unsigned type, ARMword instr, + ARMword * data) +{ + unsigned opcode_2 = BITS (5, 7); + unsigned CRm = BITS (0, 3); + unsigned reg = BITS (16, 19); + unsigned result; + + //printf("SKYEYE: xscale_cp6_mrc:opcode_2 0x%x, CRm 0x%x, reg 0x%x,reg[15] 0x%x, instr %x\n",opcode_2,CRm,reg,state->Reg[15], instr); + + switch (reg) { + case CR0_ICIP: { // cp 6 reg 0 + //printf("cp6_mrc cr0 ICIP \n"); + /* *data = (pxa270_io.icmr & pxa270_io.icpr) & ~pxa270_io.iclr; */ + /* use bus_read get the pxa270 machine registers 2010.9.26 jeff*/ + int icmr, icpr, iclr; + bus_read(32, PXA270_ICMR, (uint32_t*)&icmr); + bus_read(32, PXA270_ICPR, (uint32_t*)&icpr); + bus_read(32, PXA270_ICLR, (uint32_t*)&iclr); + *data = (icmr & icpr) & ~iclr; + } + break; + case CR1_ICMR: { // cp 6 reg 1 + //printf("cp6_mrc cr1 ICMR\n"); + /* *data = pxa270_io.icmr; */ + int icmr; + /* use bus_read get the pxa270 machine registers 2010.9.26 jeff*/ + bus_read(32, PXA270_ICMR, (uint32_t*)&icmr); + *data = icmr; + } + break; + default: + *data = 0; + printf ("SKYEYE:cp6_mrc unknown cp6 regs!!!!!!\n"); + printf ("SKYEYE: xscale_cp6_mrc:opcode_2 0x%x, CRm 0x%x, reg 0x%x,reg[15] 0x%x, instr %x\n", opcode_2, CRm, reg, state->Reg[15], instr); + break; + } + return 0; +} + +//chy 2005-09-19 end +//xscale cp13 ---------------------------------------------------- +unsigned +xscale_cp13_init (ARMul_State * state) +{ + //printf("SKYEYE: xscale_cp13_init: begin\n"); + return 0; +} + +unsigned +xscale_cp13_exit (ARMul_State * state) +{ + //printf("SKYEYE: xscale_cp13_exit: begin\n"); + return 0; +} + +unsigned +xscale_cp13_ldc (ARMul_State * state, unsigned type, ARMword instr, + ARMword data) +{ + printf ("SKYEYE: xscale_cp13_ldc: ERROR isn't existed,"); + SKYEYE_OUTREGS (stderr); + fprintf (stderr, "\n"); + // skyeye_exit (-1); + return 0; //No matter return value, only for compiler. +} + +unsigned +xscale_cp13_stc (ARMul_State * state, unsigned type, ARMword instr, + ARMword * data) +{ + printf ("SKYEYE: xscale_cp13_stc: ERROR isn't existed,"); + SKYEYE_OUTREGS (stderr); + fprintf (stderr, "\n"); + // skyeye_exit (-1); + return 0; //No matter return value, only for compiler. +} + +unsigned +xscale_cp13_mrc (ARMul_State * state, unsigned type, ARMword instr, + ARMword * data) +{ + printf ("SKYEYE: xscale_cp13_mrc: ERROR isn't existed,"); + SKYEYE_OUTREGS (stderr); + fprintf (stderr, "\n"); + // skyeye_exit (-1); + return 0; //No matter return value, only for compiler. +} + +unsigned +xscale_cp13_mcr (ARMul_State * state, unsigned type, ARMword instr, + ARMword data) +{ + printf ("SKYEYE: xscale_cp13_mcr: ERROR isn't existed,"); + SKYEYE_OUTREGS (stderr); + fprintf (stderr, "\n"); + // skyeye_exit (-1); + return 0; //No matter return value, only for compiler. +} + +unsigned +xscale_cp13_cdp (ARMul_State * state, unsigned type, ARMword instr) +{ + printf ("SKYEYE: xscale_cp13_cdp: ERROR isn't existed,"); + SKYEYE_OUTREGS (stderr); + fprintf (stderr, "\n"); + // skyeye_exit (-1); + return 0; //No matter return value, only for compiler. +} + +unsigned +xscale_cp13_read_reg (ARMul_State * state, unsigned reg, ARMword * data) +{ + printf ("SKYEYE: xscale_cp13_read_reg: ERROR isn't existed,"); + SKYEYE_OUTREGS (stderr); + fprintf (stderr, "\n"); + return 0; + //exit(-1); +} + +unsigned +xscale_cp13_write_reg (ARMul_State * state, unsigned reg, ARMword data) +{ + printf ("SKYEYE: xscale_cp13_write_reg: ERROR isn't existed,"); + SKYEYE_OUTREGS (stderr); + fprintf (stderr, "\n"); + // skyeye_exit (-1); + return 0; //No matter return value, only for compiler. +} + +//------------------------------------------------------------------ +//xscale cp14 ---------------------------------------------------- +unsigned +xscale_cp14_init (ARMul_State * state) +{ + //printf("SKYEYE: xscale_cp14_init: begin\n"); + pxa_cp14_regs.cclkcfg = 0; + pxa_cp14_regs.pwrmode = 0; + return 0; +} + +unsigned +xscale_cp14_exit (ARMul_State * state) +{ + //printf("SKYEYE: xscale_cp14_exit: begin\n"); + return 0; +} + +unsigned +xscale_cp14_ldc (ARMul_State * state, unsigned type, ARMword instr, + ARMword data) +{ + printf ("SKYEYE: xscale_cp14_ldc: ERROR isn't existed, reg15 0x%x\n", + state->Reg[15]); + SKYEYE_OUTREGS (stderr); + // skyeye_exit (-1); + return 0; //No matter return value, only for compiler. +} + +unsigned +xscale_cp14_stc (ARMul_State * state, unsigned type, ARMword instr, + ARMword * data) +{ + printf ("SKYEYE: xscale_cp14_stc: ERROR isn't existed, reg15 0x%x\n", + state->Reg[15]); + SKYEYE_OUTREGS (stderr); + // skyeye_exit (-1); + return 0; //No matter return value, only for compiler. +} + +unsigned +xscale_cp14_mrc (ARMul_State * state, unsigned type, ARMword instr, + ARMword * data) +{ + unsigned opcode_2 = BITS (5, 7); + unsigned CRm = BITS (0, 3); + unsigned reg = BITS (16, 19); + unsigned result; + + //printf("SKYEYE: xscale_cp14_mrc:opcode_2 0x%x, CRm 0x%x, reg 0x%x,reg[15] 0x%x, instr %x\n",opcode_2,CRm,reg,\ + state->Reg[15], instr); + + switch (reg) { + case CCLKCFG: // cp 14 reg 6 + //printf("cp14_mrc cclkcfg \n"); + *data = pxa_cp14_regs.cclkcfg; + break; + case PWRMODE: // cp 14 reg 7 + //printf("cp14_mrc pwrmode \n"); + *data = pxa_cp14_regs.pwrmode; + break; + default: + *data = 0; + printf ("SKYEYE:cp14_mrc unknown cp14 regs!!!!!!\n"); + break; + } + return 0; +} +unsigned xscale_cp14_mcr (ARMul_State * state, unsigned type, ARMword instr, + ARMword data) +{ + unsigned opcode_2 = BITS (5, 7); + unsigned CRm = BITS (0, 3); + unsigned reg = BITS (16, 19); + unsigned result; + + //printf("SKYEYE: xscale_cp14_mcr:opcode_2 0x%x, CRm 0x%x, reg 0x%x,reg[15] 0x%x, instr %x\n",opcode_2,CRm,reg,\ + state->Reg[15], instr); + + switch (reg) { + case CCLKCFG: // cp 14 reg 6 + //printf("cp14_mcr cclkcfg \n"); + pxa_cp14_regs.cclkcfg = data & 0xf; + break; + case PWRMODE: // cp 14 reg 7 + //printf("cp14_mcr pwrmode \n"); + pxa_cp14_regs.pwrmode = data & 0x3; + break; + default:printf ("SKYEYE: cp14_mcr unknown cp14 regs!!!!!!\n"); + break; + } + return 0; +} +unsigned xscale_cp14_cdp (ARMul_State * state, unsigned type, ARMword instr) +{ + printf ("SKYEYE: xscale_cp14_cdp: ERROR isn't existed, reg15 0x%x\n", + state->Reg[15]); + SKYEYE_OUTREGS (stderr); + // skyeye_exit (-1); + return 0; //No matter return value, only for compiler. +} +unsigned xscale_cp14_read_reg (ARMul_State * state, unsigned reg, + ARMword * data) +{ + printf ("SKYEYE: xscale_cp14_read_reg: ERROR isn't existed, reg15 0x%x\n", state->Reg[15]); + SKYEYE_OUTREGS (stderr); + // skyeye_exit (-1); + return 0; //No matter return value, only for compiler. +} +unsigned xscale_cp14_write_reg (ARMul_State * state, unsigned reg, + ARMword data) +{ + printf ("SKYEYE: xscale_cp14_write_reg: ERROR isn't existed, reg15 0x%x\n", state->Reg[15]); + SKYEYE_OUTREGS (stderr); + // skyeye_exit (-1); + + return 0; //No matter return value, only for compiler. +} //------------------------------------------------------------------ //cp15 ------------------------------------- -- cgit v1.2.3 From f872807de2d2fec7cd7c76936fa06cca1cf1c1ad Mon Sep 17 00:00:00 2001 From: bunnei Date: Fri, 16 May 2014 00:52:42 -0400 Subject: added maverick.cpp to ARM core from skyeye --- src/core/arm/interpreter/mmu/maverick.cpp | 1206 +++++++++++++++++++++++++++++ 1 file changed, 1206 insertions(+) create mode 100644 src/core/arm/interpreter/mmu/maverick.cpp (limited to 'src/core/arm/interpreter/mmu') diff --git a/src/core/arm/interpreter/mmu/maverick.cpp b/src/core/arm/interpreter/mmu/maverick.cpp new file mode 100644 index 000000000..0e98ef22b --- /dev/null +++ b/src/core/arm/interpreter/mmu/maverick.cpp @@ -0,0 +1,1206 @@ +/* maverick.c -- Cirrus/DSP co-processor interface. + Copyright (C) 2003 Free Software Foundation, Inc. + Contributed by Aldy Hernandez (aldyh@redhat.com). + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +#include + +#include "core/arm/interpreter/armdefs.h" +#include "core/arm/interpreter/armemu.h" + + +/*#define CIRRUS_DEBUG 1 */ +#if CIRRUS_DEBUG +# define printfdbg printf +#else +# define printfdbg printf_nothing +#endif + +#define POS64(i) ( (~(i)) >> 63 ) +#define NEG64(i) ( (i) >> 63 ) + +/* Define Co-Processor instruction handlers here. */ + +/* Here's ARMulator's DSP definition. A few things to note: + 1) it has 16 64-bit registers and 4 72-bit accumulators + 2) you can only access its registers with MCR and MRC. */ + +/* We can't define these in here because this file might not be linked + unless the target is arm9e-*. They are defined in wrapper.c. + Eventually the simulator should be made to handle any coprocessor + at run time. */ +struct maverick_regs +{ + union + { + int i; + float f; + } upper; + + union + { + int i; + float f; + } lower; +}; + +union maverick_acc_regs +{ + long double ld; /* Acc registers are 72-bits. */ +}; + +struct maverick_regs DSPregs[16]; +union maverick_acc_regs DSPacc[4]; +ARMword DSPsc; + +#define DEST_REG (BITS (12, 15)) +#define SRC1_REG (BITS (16, 19)) +#define SRC2_REG (BITS (0, 3)) + +static int lsw_int_index, msw_int_index; +static int lsw_float_index, msw_float_index; + +static double mv_getRegDouble (int); +static long long mv_getReg64int (int); +static void mv_setRegDouble (int, double val); +static void mv_setReg64int (int, long long val); + +static union +{ + double d; + long long ll; + int ints[2]; +} reg_conv; + +static void +printf_nothing (void *foo, ...) +{ +} + +static void +cirrus_not_implemented (char *insn) +{ + fprintf (stderr, "Cirrus instruction '%s' not implemented.\n", insn); + fprintf (stderr, "aborting!\n"); + + // skyeye_exit (1); +} + +static unsigned +DSPInit (ARMul_State * state) +{ + NOTICE_LOG(ARM11, "ARMul_ConsolePrint: DSP present"); + return TRUE; +} + +unsigned +DSPMRC4 (ARMul_State * state, + unsigned type, ARMword instr, ARMword * value) +{ + switch (BITS (5, 7)) { + case 0: /* cfmvrdl */ + /* Move lower half of a DF stored in a DSP reg into an Arm reg. */ + printfdbg ("cfmvrdl\n"); + printfdbg ("\tlower half=0x%x\n", DSPregs[SRC1_REG].lower.i); + printfdbg ("\tentire thing=%g\n", mv_getRegDouble (SRC1_REG)); + + *value = (ARMword) DSPregs[SRC1_REG].lower.i; + break; + + case 1: /* cfmvrdh */ + /* Move upper half of a DF stored in a DSP reg into an Arm reg. */ + printfdbg ("cfmvrdh\n"); + printfdbg ("\tupper half=0x%x\n", DSPregs[SRC1_REG].upper.i); + printfdbg ("\tentire thing=%g\n", mv_getRegDouble (SRC1_REG)); + + *value = (ARMword) DSPregs[SRC1_REG].upper.i; + break; + + case 2: /* cfmvrs */ + /* Move SF from upper half of a DSP register to an Arm register. */ + *value = (ARMword) DSPregs[SRC1_REG].upper.i; + printfdbg ("cfmvrs = mvf%d <-- %f\n", + SRC1_REG, DSPregs[SRC1_REG].upper.f); + break; + +#ifdef doesnt_work + case 4: /* cfcmps */ + { + float a, b; + int n, z, c, v; + + a = DSPregs[SRC1_REG].upper.f; + b = DSPregs[SRC2_REG].upper.f; + + printfdbg ("cfcmps\n"); + printfdbg ("\tcomparing %f and %f\n", a, b); + + z = a == b; /* zero */ + n = a != b; /* negative */ + v = a > b; /* overflow */ + c = 0; /* carry */ + *value = (n << 31) | (z << 30) | (c << 29) | (v << + 28); + break; + } + + case 5: /* cfcmpd */ + { + double a, b; + int n, z, c, v; + + a = mv_getRegDouble (SRC1_REG); + b = mv_getRegDouble (SRC2_REG); + + printfdbg ("cfcmpd\n"); + printfdbg ("\tcomparing %g and %g\n", a, b); + + z = a == b; /* zero */ + n = a != b; /* negative */ + v = a > b; /* overflow */ + c = 0; /* carry */ + *value = (n << 31) | (z << 30) | (c << 29) | (v << + 28); + break; + } +#else + case 4: /* cfcmps */ + { + float a, b; + int n, z, c, v; + + a = DSPregs[SRC1_REG].upper.f; + b = DSPregs[SRC2_REG].upper.f; + + printfdbg ("cfcmps\n"); + printfdbg ("\tcomparing %f and %f\n", a, b); + + z = a == b; /* zero */ + n = a < b; /* negative */ + c = a > b; /* carry */ + v = 0; /* fixme */ + printfdbg ("\tz = %d, n = %d\n", z, n); + *value = (n << 31) | (z << 30) | (c << 29) | (v << + 28); + break; + } + + case 5: /* cfcmpd */ + { + double a, b; + int n, z, c, v; + + a = mv_getRegDouble (SRC1_REG); + b = mv_getRegDouble (SRC2_REG); + + printfdbg ("cfcmpd\n"); + printfdbg ("\tcomparing %g and %g\n", a, b); + + z = a == b; /* zero */ + n = a < b; /* negative */ + c = a > b; /* carry */ + v = 0; /* fixme */ + *value = (n << 31) | (z << 30) | (c << 29) | (v << + 28); + break; + } +#endif + default: + fprintf (stderr, "unknown opcode in DSPMRC4 0x%x\n", instr); + cirrus_not_implemented ("unknown"); + break; + } + + return ARMul_DONE; +} + +unsigned +DSPMRC5 (ARMul_State * state, + unsigned type, ARMword instr, ARMword * value) +{ + switch (BITS (5, 7)) { + case 0: /* cfmvr64l */ + /* Move lower half of 64bit int from Cirrus to Arm. */ + *value = (ARMword) DSPregs[SRC1_REG].lower.i; + printfdbg ("cfmvr64l ARM_REG = mvfx%d <-- %d\n", + DEST_REG, (int) *value); + break; + + case 1: /* cfmvr64h */ + /* Move upper half of 64bit int from Cirrus to Arm. */ + *value = (ARMword) DSPregs[SRC1_REG].upper.i; + printfdbg ("cfmvr64h <-- %d\n", (int) *value); + break; + + case 4: /* cfcmp32 */ + { + int res; + int n, z, c, v; + unsigned int a, b; + + printfdbg ("cfcmp32 mvfx%d - mvfx%d\n", SRC1_REG, + SRC2_REG); + + /* FIXME: see comment for cfcmps. */ + a = DSPregs[SRC1_REG].lower.i; + b = DSPregs[SRC2_REG].lower.i; + + res = DSPregs[SRC1_REG].lower.i - + DSPregs[SRC2_REG].lower.i; + /* zero */ + z = res == 0; + /* negative */ + n = res < 0; + /* overflow */ + v = SubOverflow (DSPregs[SRC1_REG].lower.i, + DSPregs[SRC2_REG].lower.i, res); + /* carry */ + c = (NEG (a) && POS (b) || + (NEG (a) && POS (res)) || (POS (b) + && POS (res))); + + *value = (n << 31) | (z << 30) | (c << 29) | (v << + 28); + break; + } + + case 5: /* cfcmp64 */ + { + long long res; + int n, z, c, v; + unsigned long long a, b; + + printfdbg ("cfcmp64 mvdx%d - mvdx%d\n", SRC1_REG, + SRC2_REG); + + /* fixme: see comment for cfcmps. */ + + a = mv_getReg64int (SRC1_REG); + b = mv_getReg64int (SRC2_REG); + + res = mv_getReg64int (SRC1_REG) - + mv_getReg64int (SRC2_REG); + /* zero */ + z = res == 0; + /* negative */ + n = res < 0; + /* overflow */ + v = ((NEG64 (a) && POS64 (b) && POS64 (res)) + || (POS64 (a) && NEG64 (b) && NEG64 (res))); + /* carry */ + c = (NEG64 (a) && POS64 (b) || + (NEG64 (a) && POS64 (res)) || (POS64 (b) + && POS64 (res))); + + *value = (n << 31) | (z << 30) | (c << 29) | (v << + 28); + break; + } + + default: + fprintf (stderr, "unknown opcode in DSPMRC5 0x%x\n", instr); + cirrus_not_implemented ("unknown"); + break; + } + + return ARMul_DONE; +} + +unsigned +DSPMRC6 (ARMul_State * state, + unsigned type, ARMword instr, ARMword * value) +{ + switch (BITS (5, 7)) { + case 0: /* cfmval32 */ + cirrus_not_implemented ("cfmval32"); + break; + + case 1: /* cfmvam32 */ + cirrus_not_implemented ("cfmvam32"); + break; + + case 2: /* cfmvah32 */ + cirrus_not_implemented ("cfmvah32"); + break; + + case 3: /* cfmva32 */ + cirrus_not_implemented ("cfmva32"); + break; + + case 4: /* cfmva64 */ + cirrus_not_implemented ("cfmva64"); + break; + + case 5: /* cfmvsc32 */ + cirrus_not_implemented ("cfmvsc32"); + break; + + default: + fprintf (stderr, "unknown opcode in DSPMRC6 0x%x\n", instr); + cirrus_not_implemented ("unknown"); + break; + } + + return ARMul_DONE; +} + +unsigned +DSPMCR4 (ARMul_State * state, + unsigned type, ARMword instr, ARMword value) +{ + switch (BITS (5, 7)) { + case 0: /* cfmvdlr */ + /* Move the lower half of a DF value from an Arm register into + the lower half of a Cirrus register. */ + printfdbg ("cfmvdlr <-- 0x%x\n", (int) value); + DSPregs[SRC1_REG].lower.i = (int) value; + break; + + case 1: /* cfmvdhr */ + /* Move the upper half of a DF value from an Arm register into + the upper half of a Cirrus register. */ + printfdbg ("cfmvdhr <-- 0x%x\n", (int) value); + DSPregs[SRC1_REG].upper.i = (int) value; + break; + + case 2: /* cfmvsr */ + /* Move SF from Arm register into upper half of Cirrus register. */ + printfdbg ("cfmvsr <-- 0x%x\n", (int) value); + DSPregs[SRC1_REG].upper.i = (int) value; + break; + + default: + fprintf (stderr, "unknown opcode in DSPMCR4 0x%x\n", instr); + cirrus_not_implemented ("unknown"); + break; + } + + return ARMul_DONE; +} + +unsigned +DSPMCR5 (ARMul_State * state, + unsigned type, ARMword instr, ARMword value) +{ + union + { + int s; + unsigned int us; + } val; + + switch (BITS (5, 7)) { + case 0: /* cfmv64lr */ + /* Move lower half of a 64bit int from an ARM register into the + lower half of a DSP register and sign extend it. */ + printfdbg ("cfmv64lr mvdx%d <-- 0x%x\n", SRC1_REG, + (int) value); + DSPregs[SRC1_REG].lower.i = (int) value; + break; + + case 1: /* cfmv64hr */ + /* Move upper half of a 64bit int from an ARM register into the + upper half of a DSP register. */ + printfdbg ("cfmv64hr ARM_REG = mvfx%d <-- 0x%x\n", + SRC1_REG, (int) value); + DSPregs[SRC1_REG].upper.i = (int) value; + break; + + case 2: /* cfrshl32 */ + printfdbg ("cfrshl32\n"); + val.us = value; + if (val.s > 0) + DSPregs[SRC2_REG].lower.i = + DSPregs[SRC1_REG].lower.i << value; + else + DSPregs[SRC2_REG].lower.i = + DSPregs[SRC1_REG].lower.i >> -value; + break; + + case 3: /* cfrshl64 */ + printfdbg ("cfrshl64\n"); + val.us = value; + if (val.s > 0) + mv_setReg64int (SRC2_REG, + mv_getReg64int (SRC1_REG) << value); + else + mv_setReg64int (SRC2_REG, + mv_getReg64int (SRC1_REG) >> -value); + break; + + default: + fprintf (stderr, "unknown opcode in DSPMCR5 0x%x\n", instr); + cirrus_not_implemented ("unknown"); + break; + } + + return ARMul_DONE; +} + +unsigned +DSPMCR6 (ARMul_State * state, + unsigned type, ARMword instr, ARMword value) +{ + switch (BITS (5, 7)) { + case 0: /* cfmv32al */ + cirrus_not_implemented ("cfmv32al"); + break; + + case 1: /* cfmv32am */ + cirrus_not_implemented ("cfmv32am"); + break; + + case 2: /* cfmv32ah */ + cirrus_not_implemented ("cfmv32ah"); + break; + + case 3: /* cfmv32a */ + cirrus_not_implemented ("cfmv32a"); + break; + + case 4: /* cfmv64a */ + cirrus_not_implemented ("cfmv64a"); + break; + + case 5: /* cfmv32sc */ + cirrus_not_implemented ("cfmv32sc"); + break; + + default: + fprintf (stderr, "unknown opcode in DSPMCR6 0x%x\n", instr); + cirrus_not_implemented ("unknown"); + break; + } + + return ARMul_DONE; +} + +unsigned +DSPLDC4 (ARMul_State * state, + unsigned type, ARMword instr, ARMword data) +{ + static unsigned words; + + if (type != ARMul_DATA) { + words = 0; + return ARMul_DONE; + } + + if (BIT (22)) { /* it's a long access, get two words */ + /* cfldrd */ + + printfdbg + ("cfldrd: %x (words = %d) (bigend = %d) DESTREG = %d\n", + data, words, state->bigendSig, DEST_REG); + + if (words == 0) { + if (state->bigendSig) + DSPregs[DEST_REG].upper.i = (int) data; + else + DSPregs[DEST_REG].lower.i = (int) data; + } + else { + if (state->bigendSig) + DSPregs[DEST_REG].lower.i = (int) data; + else + DSPregs[DEST_REG].upper.i = (int) data; + } + + ++words; + + if (words == 2) { + printfdbg ("\tmvd%d <-- mem = %g\n", DEST_REG, + mv_getRegDouble (DEST_REG)); + + return ARMul_DONE; + } + else + return ARMul_INC; + } + else { + /* Get just one word. */ + + /* cfldrs */ + printfdbg ("cfldrs\n"); + + DSPregs[DEST_REG].upper.i = (int) data; + + printfdbg ("\tmvf%d <-- mem = %f\n", DEST_REG, + DSPregs[DEST_REG].upper.f); + + return ARMul_DONE; + } +} + +unsigned +DSPLDC5 (ARMul_State * state, + unsigned type, ARMword instr, ARMword data) +{ + static unsigned words; + + if (type != ARMul_DATA) { + words = 0; + return ARMul_DONE; + } + + if (BIT (22)) { + /* It's a long access, get two words. */ + + /* cfldr64 */ + printfdbg ("cfldr64: %d\n", data); + + if (words == 0) { + if (state->bigendSig) + DSPregs[DEST_REG].upper.i = (int) data; + else + DSPregs[DEST_REG].lower.i = (int) data; + } + else { + if (state->bigendSig) + DSPregs[DEST_REG].lower.i = (int) data; + else + DSPregs[DEST_REG].upper.i = (int) data; + } + + ++words; + + if (words == 2) { + printfdbg ("\tmvdx%d <-- mem = %lld\n", DEST_REG, + mv_getReg64int (DEST_REG)); + + return ARMul_DONE; + } + else + return ARMul_INC; + } + else { + /* Get just one word. */ + + /* cfldr32 */ + printfdbg ("cfldr32 mvfx%d <-- %d\n", DEST_REG, (int) data); + + /* 32bit ints should be sign extended to 64bits when loaded. */ + mv_setReg64int (DEST_REG, (long long) data); + + return ARMul_DONE; + } +} + +unsigned +DSPSTC4 (ARMul_State * state, + unsigned type, ARMword instr, ARMword * data) +{ + static unsigned words; + + if (type != ARMul_DATA) { + words = 0; + return ARMul_DONE; + } + + if (BIT (22)) { + /* It's a long access, get two words. */ + /* cfstrd */ + printfdbg ("cfstrd\n"); + + if (words == 0) { + if (state->bigendSig) + *data = (ARMword) DSPregs[DEST_REG].upper.i; + else + *data = (ARMword) DSPregs[DEST_REG].lower.i; + } + else { + if (state->bigendSig) + *data = (ARMword) DSPregs[DEST_REG].lower.i; + else + *data = (ARMword) DSPregs[DEST_REG].upper.i; + } + + ++words; + + if (words == 2) { + printfdbg ("\tmem = mvd%d = %g\n", DEST_REG, + mv_getRegDouble (DEST_REG)); + + return ARMul_DONE; + } + else + return ARMul_INC; + } + else { + /* Get just one word. */ + /* cfstrs */ + printfdbg ("cfstrs mvf%d <-- %f\n", DEST_REG, + DSPregs[DEST_REG].upper.f); + + *data = (ARMword) DSPregs[DEST_REG].upper.i; + + return ARMul_DONE; + } +} + +unsigned +DSPSTC5 (ARMul_State * state, + unsigned type, ARMword instr, ARMword * data) +{ + static unsigned words; + + if (type != ARMul_DATA) { + words = 0; + return ARMul_DONE; + } + + if (BIT (22)) { + /* It's a long access, store two words. */ + /* cfstr64 */ + printfdbg ("cfstr64\n"); + + if (words == 0) { + if (state->bigendSig) + *data = (ARMword) DSPregs[DEST_REG].upper.i; + else + *data = (ARMword) DSPregs[DEST_REG].lower.i; + } + else { + if (state->bigendSig) + *data = (ARMword) DSPregs[DEST_REG].lower.i; + else + *data = (ARMword) DSPregs[DEST_REG].upper.i; + } + + ++words; + + if (words == 2) { + printfdbg ("\tmem = mvd%d = %lld\n", DEST_REG, + mv_getReg64int (DEST_REG)); + + return ARMul_DONE; + } + else + return ARMul_INC; + } + else { + /* Store just one word. */ + /* cfstr32 */ + *data = (ARMword) DSPregs[DEST_REG].lower.i; + + printfdbg ("cfstr32 MEM = %d\n", (int) *data); + + return ARMul_DONE; + } +} + +unsigned +DSPCDP4 (ARMul_State * state, unsigned type, ARMword instr) +{ + int opcode2; + + opcode2 = BITS (5, 7); + + switch (BITS (20, 21)) { + case 0: + switch (opcode2) { + case 0: /* cfcpys */ + printfdbg ("cfcpys mvf%d = mvf%d = %f\n", + DEST_REG, SRC1_REG, + DSPregs[SRC1_REG].upper.f); + DSPregs[DEST_REG].upper.f = DSPregs[SRC1_REG].upper.f; + break; + + case 1: /* cfcpyd */ + printfdbg ("cfcpyd mvd%d = mvd%d = %g\n", + DEST_REG, SRC1_REG, + mv_getRegDouble (SRC1_REG)); + mv_setRegDouble (DEST_REG, + mv_getRegDouble (SRC1_REG)); + break; + + case 2: /* cfcvtds */ + printfdbg ("cfcvtds mvf%d = (float) mvd%d = %f\n", + DEST_REG, SRC1_REG, + (float) mv_getRegDouble (SRC1_REG)); + DSPregs[DEST_REG].upper.f = + (float) mv_getRegDouble (SRC1_REG); + break; + + case 3: /* cfcvtsd */ + printfdbg ("cfcvtsd mvd%d = mvf%d = %g\n", + DEST_REG, SRC1_REG, + (double) DSPregs[SRC1_REG].upper.f); + mv_setRegDouble (DEST_REG, + (double) DSPregs[SRC1_REG].upper.f); + break; + + case 4: /* cfcvt32s */ + printfdbg ("cfcvt32s mvf%d = mvfx%d = %f\n", + DEST_REG, SRC1_REG, + (float) DSPregs[SRC1_REG].lower.i); + DSPregs[DEST_REG].upper.f = + (float) DSPregs[SRC1_REG].lower.i; + break; + + case 5: /* cfcvt32d */ + printfdbg ("cfcvt32d mvd%d = mvfx%d = %g\n", + DEST_REG, SRC1_REG, + (double) DSPregs[SRC1_REG].lower.i); + mv_setRegDouble (DEST_REG, + (double) DSPregs[SRC1_REG].lower.i); + break; + + case 6: /* cfcvt64s */ + printfdbg ("cfcvt64s mvf%d = mvdx%d = %f\n", + DEST_REG, SRC1_REG, + (float) mv_getReg64int (SRC1_REG)); + DSPregs[DEST_REG].upper.f = + (float) mv_getReg64int (SRC1_REG); + break; + + case 7: /* cfcvt64d */ + printfdbg ("cfcvt64d mvd%d = mvdx%d = %g\n", + DEST_REG, SRC1_REG, + (double) mv_getReg64int (SRC1_REG)); + mv_setRegDouble (DEST_REG, + (double) mv_getReg64int (SRC1_REG)); + break; + } + break; + + case 1: + switch (opcode2) { + case 0: /* cfmuls */ + printfdbg ("cfmuls mvf%d = mvf%d = %f\n", + DEST_REG, + SRC1_REG, + DSPregs[SRC1_REG].upper.f * + DSPregs[SRC2_REG].upper.f); + + DSPregs[DEST_REG].upper.f = DSPregs[SRC1_REG].upper.f + * DSPregs[SRC2_REG].upper.f; + break; + + case 1: /* cfmuld */ + printfdbg ("cfmuld mvd%d = mvd%d = %g\n", + DEST_REG, + SRC1_REG, + mv_getRegDouble (SRC1_REG) * + mv_getRegDouble (SRC2_REG)); + + mv_setRegDouble (DEST_REG, mv_getRegDouble (SRC1_REG) + * mv_getRegDouble (SRC2_REG)); + break; + + default: + fprintf (stderr, "unknown opcode in DSPCDP4 0x%x\n", + instr); + cirrus_not_implemented ("unknown"); + break; + } + break; + + case 3: + switch (opcode2) { + case 0: /* cfabss */ + DSPregs[DEST_REG].upper.f = + (DSPregs[SRC1_REG].upper.f < + 0.0F ? -DSPregs[SRC1_REG].upper. + f : DSPregs[SRC1_REG].upper.f); + printfdbg ("cfabss mvf%d = |mvf%d| = %f\n", DEST_REG, + SRC1_REG, DSPregs[DEST_REG].upper.f); + break; + + case 1: /* cfabsd */ + mv_setRegDouble (DEST_REG, + (mv_getRegDouble (SRC1_REG) < 0.0 ? + -mv_getRegDouble (SRC1_REG) + : mv_getRegDouble (SRC1_REG))); + printfdbg ("cfabsd mvd%d = |mvd%d| = %g\n", + DEST_REG, SRC1_REG, + mv_getRegDouble (DEST_REG)); + break; + + case 2: /* cfnegs */ + DSPregs[DEST_REG].upper.f = + -DSPregs[SRC1_REG].upper.f; + printfdbg ("cfnegs mvf%d = -mvf%d = %f\n", DEST_REG, + SRC1_REG, DSPregs[DEST_REG].upper.f); + break; + + case 3: /* cfnegd */ + mv_setRegDouble (DEST_REG, + -mv_getRegDouble (SRC1_REG)); + printfdbg ("cfnegd mvd%d = -mvd%d = %g\n", DEST_REG, + mv_getRegDouble (DEST_REG)); + break; + + case 4: /* cfadds */ + DSPregs[DEST_REG].upper.f = DSPregs[SRC1_REG].upper.f + + DSPregs[SRC2_REG].upper.f; + printfdbg ("cfadds mvf%d = mvf%d + mvf%d = %f\n", + DEST_REG, SRC1_REG, SRC2_REG, + DSPregs[DEST_REG].upper.f); + break; + + case 5: /* cfaddd */ + mv_setRegDouble (DEST_REG, mv_getRegDouble (SRC1_REG) + + mv_getRegDouble (SRC2_REG)); + printfdbg ("cfaddd: mvd%d = mvd%d + mvd%d = %g\n", + DEST_REG, + SRC1_REG, SRC2_REG, + mv_getRegDouble (DEST_REG)); + break; + + case 6: /* cfsubs */ + DSPregs[DEST_REG].upper.f = DSPregs[SRC1_REG].upper.f + - DSPregs[SRC2_REG].upper.f; + printfdbg ("cfsubs: mvf%d = mvf%d - mvf%d = %f\n", + DEST_REG, SRC1_REG, SRC2_REG, + DSPregs[DEST_REG].upper.f); + break; + + case 7: /* cfsubd */ + mv_setRegDouble (DEST_REG, mv_getRegDouble (SRC1_REG) + - mv_getRegDouble (SRC2_REG)); + printfdbg ("cfsubd: mvd%d = mvd%d - mvd%d = %g\n", + DEST_REG, + SRC1_REG, SRC2_REG, + mv_getRegDouble (DEST_REG)); + break; + } + break; + + default: + fprintf (stderr, "unknown opcode in DSPCDP4 0x%x\n", instr); + cirrus_not_implemented ("unknown"); + break; + } + + return ARMul_DONE; +} + +unsigned +DSPCDP5 (ARMul_State * state, unsigned type, ARMword instr) +{ + int opcode2; + char shift; + + opcode2 = BITS (5, 7); + + /* Shift constants are 7bit signed numbers in bits 0..3|5..7. */ + shift = BITS (0, 3) | (BITS (5, 7)) << 4; + if (shift & 0x40) + shift |= 0xc0; + + switch (BITS (20, 21)) { + case 0: + /* cfsh32 */ + printfdbg ("cfsh32 %s amount=%d\n", + shift < 0 ? "right" : "left", shift); + if (shift < 0) + /* Negative shift is a right shift. */ + DSPregs[DEST_REG].lower.i = + DSPregs[SRC1_REG].lower.i >> -shift; + else + /* Positive shift is a left shift. */ + DSPregs[DEST_REG].lower.i = + DSPregs[SRC1_REG].lower.i << shift; + break; + + case 1: + switch (opcode2) { + case 0: /* cfmul32 */ + DSPregs[DEST_REG].lower.i = DSPregs[SRC1_REG].lower.i + * DSPregs[SRC2_REG].lower.i; + printfdbg ("cfmul32 mvfx%d = mvfx%d * mvfx%d = %d\n", + DEST_REG, SRC1_REG, SRC2_REG, + DSPregs[DEST_REG].lower.i); + break; + + case 1: /* cfmul64 */ + mv_setReg64int (DEST_REG, mv_getReg64int (SRC1_REG) + * mv_getReg64int (SRC2_REG)); + printfdbg + ("cfmul64 mvdx%d = mvdx%d * mvdx%d = %lld\n", + DEST_REG, SRC1_REG, SRC2_REG, + mv_getReg64int (DEST_REG)); + break; + + case 2: /* cfmac32 */ + DSPregs[DEST_REG].lower.i + += + DSPregs[SRC1_REG].lower.i * + DSPregs[SRC2_REG].lower.i; + printfdbg ("cfmac32 mvfx%d += mvfx%d * mvfx%d = %d\n", + DEST_REG, SRC1_REG, SRC2_REG, + DSPregs[DEST_REG].lower.i); + break; + + case 3: /* cfmsc32 */ + DSPregs[DEST_REG].lower.i + -= + DSPregs[SRC1_REG].lower.i * + DSPregs[SRC2_REG].lower.i; + printfdbg ("cfmsc32 mvfx%d -= mvfx%d * mvfx%d = %d\n", + DEST_REG, SRC1_REG, SRC2_REG, + DSPregs[DEST_REG].lower.i); + break; + + case 4: /* cfcvts32 */ + /* fixme: this should round */ + DSPregs[DEST_REG].lower.i = + (int) DSPregs[SRC1_REG].upper.f; + printfdbg ("cfcvts32 mvfx%d = mvf%d = %d\n", DEST_REG, + SRC1_REG, DSPregs[DEST_REG].lower.i); + break; + + case 5: /* cfcvtd32 */ + /* fixme: this should round */ + DSPregs[DEST_REG].lower.i = + (int) mv_getRegDouble (SRC1_REG); + printfdbg ("cfcvtd32 mvdx%d = mvd%d = %d\n", DEST_REG, + SRC1_REG, DSPregs[DEST_REG].lower.i); + break; + + case 6: /* cftruncs32 */ + DSPregs[DEST_REG].lower.i = + (int) DSPregs[SRC1_REG].upper.f; + printfdbg ("cftruncs32 mvfx%d = mvf%d = %d\n", + DEST_REG, SRC1_REG, + DSPregs[DEST_REG].lower.i); + break; + + case 7: /* cftruncd32 */ + DSPregs[DEST_REG].lower.i = + (int) mv_getRegDouble (SRC1_REG); + printfdbg ("cftruncd32 mvfx%d = mvd%d = %d\n", + DEST_REG, SRC1_REG, + DSPregs[DEST_REG].lower.i); + break; + } + break; + + case 2: + /* cfsh64 */ + printfdbg ("cfsh64\n"); + + if (shift < 0) + /* Negative shift is a right shift. */ + mv_setReg64int (DEST_REG, + mv_getReg64int (SRC1_REG) >> -shift); + else + /* Positive shift is a left shift. */ + mv_setReg64int (DEST_REG, + mv_getReg64int (SRC1_REG) << shift); + printfdbg ("\t%llx\n", mv_getReg64int (DEST_REG)); + break; + + case 3: + switch (opcode2) { + case 0: /* cfabs32 */ + DSPregs[DEST_REG].lower.i = + (DSPregs[SRC1_REG].lower.i < + 0 ? -DSPregs[SRC1_REG].lower. + i : DSPregs[SRC1_REG].lower.i); + printfdbg ("cfabs32 mvfx%d = |mvfx%d| = %d\n", + DEST_REG, SRC1_REG, SRC2_REG, + DSPregs[DEST_REG].lower.i); + break; + + case 1: /* cfabs64 */ + mv_setReg64int (DEST_REG, + (mv_getReg64int (SRC1_REG) < 0 + ? -mv_getReg64int (SRC1_REG) + : mv_getReg64int (SRC1_REG))); + printfdbg ("cfabs64 mvdx%d = |mvdx%d| = %lld\n", + DEST_REG, SRC1_REG, SRC2_REG, + mv_getReg64int (DEST_REG)); + break; + + case 2: /* cfneg32 */ + DSPregs[DEST_REG].lower.i = + -DSPregs[SRC1_REG].lower.i; + printfdbg ("cfneg32 mvfx%d = -mvfx%d = %d\n", + DEST_REG, SRC1_REG, SRC2_REG, + DSPregs[DEST_REG].lower.i); + break; + + case 3: /* cfneg64 */ + mv_setReg64int (DEST_REG, -mv_getReg64int (SRC1_REG)); + printfdbg ("cfneg64 mvdx%d = -mvdx%d = %lld\n", + DEST_REG, SRC1_REG, SRC2_REG, + mv_getReg64int (DEST_REG)); + break; + + case 4: /* cfadd32 */ + DSPregs[DEST_REG].lower.i = DSPregs[SRC1_REG].lower.i + + DSPregs[SRC2_REG].lower.i; + printfdbg ("cfadd32 mvfx%d = mvfx%d + mvfx%d = %d\n", + DEST_REG, SRC1_REG, SRC2_REG, + DSPregs[DEST_REG].lower.i); + break; + + case 5: /* cfadd64 */ + mv_setReg64int (DEST_REG, mv_getReg64int (SRC1_REG) + + mv_getReg64int (SRC2_REG)); + printfdbg + ("cfadd64 mvdx%d = mvdx%d + mvdx%d = %lld\n", + DEST_REG, SRC1_REG, SRC2_REG, + mv_getReg64int (DEST_REG)); + break; + + case 6: /* cfsub32 */ + DSPregs[DEST_REG].lower.i = DSPregs[SRC1_REG].lower.i + - DSPregs[SRC2_REG].lower.i; + printfdbg ("cfsub32 mvfx%d = mvfx%d - mvfx%d = %d\n", + DEST_REG, SRC1_REG, SRC2_REG, + DSPregs[DEST_REG].lower.i); + break; + + case 7: /* cfsub64 */ + mv_setReg64int (DEST_REG, mv_getReg64int (SRC1_REG) + - mv_getReg64int (SRC2_REG)); + printfdbg ("cfsub64 mvdx%d = mvdx%d - mvdx%d = %d\n", + DEST_REG, SRC1_REG, SRC2_REG, + mv_getReg64int (DEST_REG)); + break; + } + break; + + default: + fprintf (stderr, "unknown opcode in DSPCDP5 0x%x\n", instr); + cirrus_not_implemented ("unknown"); + break; + } + + return ARMul_DONE; +} + +unsigned +DSPCDP6 (ARMul_State * state, unsigned type, ARMword instr) +{ + int opcode2; + + opcode2 = BITS (5, 7); + + switch (BITS (20, 21)) { + case 0: + /* cfmadd32 */ + cirrus_not_implemented ("cfmadd32"); + break; + + case 1: + /* cfmsub32 */ + cirrus_not_implemented ("cfmsub32"); + break; + + case 2: + /* cfmadda32 */ + cirrus_not_implemented ("cfmadda32"); + break; + + case 3: + /* cfmsuba32 */ + cirrus_not_implemented ("cfmsuba32"); + break; + + default: + fprintf (stderr, "unknown opcode in DSPCDP6 0x%x\n", instr); + } + + return ARMul_DONE; +} + +/* Conversion functions. + + 32-bit integers are stored in the LOWER half of a 64-bit physical + register. + + Single precision floats are stored in the UPPER half of a 64-bit + physical register. */ + +static double +mv_getRegDouble (int regnum) +{ + reg_conv.ints[lsw_float_index] = DSPregs[regnum].upper.i; + reg_conv.ints[msw_float_index] = DSPregs[regnum].lower.i; + return reg_conv.d; +} + +static void +mv_setRegDouble (int regnum, double val) +{ + reg_conv.d = val; + DSPregs[regnum].upper.i = reg_conv.ints[lsw_float_index]; + DSPregs[regnum].lower.i = reg_conv.ints[msw_float_index]; +} + +static long long +mv_getReg64int (int regnum) +{ + reg_conv.ints[lsw_int_index] = DSPregs[regnum].lower.i; + reg_conv.ints[msw_int_index] = DSPregs[regnum].upper.i; + return reg_conv.ll; +} + +static void +mv_setReg64int (int regnum, long long val) +{ + reg_conv.ll = val; + DSPregs[regnum].lower.i = reg_conv.ints[lsw_int_index]; + DSPregs[regnum].upper.i = reg_conv.ints[msw_int_index]; +} + +/* Compute LSW in a double and a long long. */ + +void +mv_compute_host_endianness (ARMul_State * state) +{ + static union + { + long long ll; + int ints[2]; + int i; + double d; + float floats[2]; + float f; + } conv; + + /* Calculate where's the LSW in a 64bit int. */ + conv.ll = 45; + + if (conv.ints[0] == 0) { + msw_int_index = 0; + lsw_int_index = 1; + } + else { + assert (conv.ints[1] == 0); + msw_int_index = 1; + lsw_int_index = 0; + } + + /* Calculate where's the LSW in a double. */ + conv.d = 3.0; + + if (conv.ints[0] == 0) { + msw_float_index = 0; + lsw_float_index = 1; + } + else { + assert (conv.ints[1] == 0); + msw_float_index = 1; + lsw_float_index = 0; + } + + printfdbg ("lsw_int_index %d\n", lsw_int_index); + printfdbg ("lsw_float_index %d\n", lsw_float_index); +} -- cgit v1.2.3 From a2804bf7010c2759668cfc36285a2b2a39bc695f Mon Sep 17 00:00:00 2001 From: bunnei Date: Fri, 16 May 2014 20:04:13 -0400 Subject: - removed unused stubbed out code - fixed some compiler issues with xscale_copro when porting code to Windows - fixed some #include's --- src/core/arm/interpreter/mmu/xscale_copro.cpp | 35 +++++++++++++++------------ 1 file changed, 19 insertions(+), 16 deletions(-) (limited to 'src/core/arm/interpreter/mmu') diff --git a/src/core/arm/interpreter/mmu/xscale_copro.cpp b/src/core/arm/interpreter/mmu/xscale_copro.cpp index a006cb102..433ce8e02 100644 --- a/src/core/arm/interpreter/mmu/xscale_copro.cpp +++ b/src/core/arm/interpreter/mmu/xscale_copro.cpp @@ -412,7 +412,8 @@ unsigned xscale_cp15_write_reg (ARMul_State * state, unsigned reg, return 0; } -int xscale_cp15_init (ARMul_State * state) +unsigned +xscale_cp15_init (ARMul_State * state) { xscale_mmu_desc_t *desc; cache_desc_t *c_desc; @@ -489,7 +490,8 @@ int xscale_cp15_init (ARMul_State * state) return -1; } -void xscale_cp15_exit (ARMul_State * state) +unsigned +xscale_cp15_exit (ARMul_State * state) { //mmu_rb_exit(RB()); mmu_wb_exit (WB ()); @@ -498,6 +500,7 @@ void xscale_cp15_exit (ARMul_State * state) mmu_tlb_exit (D_TLB ()); mmu_cache_exit (I_CACHE ()); mmu_tlb_exit (I_TLB ()); + return 0; }; @@ -1372,17 +1375,17 @@ static int xscale_mmu_v2p_dbct (ARMul_State * state, ARMword virt_addr, //AJ2D-------------------------------------------------------------------------- /*xscale mmu_ops_t*/ -mmu_ops_t xscale_mmu_ops = { - xscale_cp15_init, - xscale_cp15_exit, - xscale_mmu_read_byte, - xscale_mmu_write_byte, - xscale_mmu_read_halfword, - xscale_mmu_write_halfword, - xscale_mmu_read_word, - xscale_mmu_write_word, - xscale_mmu_load_instr, xscale_mmu_mcr, xscale_mmu_mrc, -//teawater add for arm2x86 2005.06.24------------------------------------------- - xscale_mmu_v2p_dbct, -//AJ2D-------------------------------------------------------------------------- -}; +//mmu_ops_t xscale_mmu_ops = { +// xscale_cp15_init, +// xscale_cp15_exit, +// xscale_mmu_read_byte, +// xscale_mmu_write_byte, +// xscale_mmu_read_halfword, +// xscale_mmu_write_halfword, +// xscale_mmu_read_word, +// xscale_mmu_write_word, +// xscale_mmu_load_instr, xscale_mmu_mcr, xscale_mmu_mrc, +////teawater add for arm2x86 2005.06.24------------------------------------------- +// xscale_mmu_v2p_dbct, +////AJ2D-------------------------------------------------------------------------- +//}; -- cgit v1.2.3