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/* |
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* Copyright (C) 2005-2006 Anders Gavare. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are met: |
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* |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. The name of the author may not be used to endorse or promote products |
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* derived from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* |
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* $Id: cpu_dyntrans.c,v 1.99 2006/06/23 20:43:44 debug Exp $ |
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* |
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* Common dyntrans routines. Included from cpu_*.c. |
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*/ |
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|
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|
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#ifdef DYNTRANS_CPU_RUN_INSTR |
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#if 1 /* IC statistics: */ |
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static void gather_statistics(struct cpu *cpu) |
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{ |
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struct DYNTRANS_IC *ic = cpu->cd.DYNTRANS_ARCH.next_ic; |
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static long long n = 0; |
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static FILE *f = NULL; |
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|
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n++; |
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if (n < 100000000) |
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return; |
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|
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if (f == NULL) { |
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f = fopen("instruction_call_statistics.raw", "w"); |
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if (f == NULL) { |
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fatal("Unable to open statistics file for output.\n"); |
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exit(1); |
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} |
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} |
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fwrite(&ic->f, 1, sizeof(void *), f); |
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} |
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#else /* PC statistics: */ |
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static void gather_statistics(struct cpu *cpu) |
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{ |
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uint64_t a; |
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int low_pc = ((size_t)cpu->cd.DYNTRANS_ARCH.next_ic - (size_t) |
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cpu->cd.DYNTRANS_ARCH.cur_ic_page) / sizeof(struct DYNTRANS_IC); |
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if (low_pc < 0 || low_pc >= DYNTRANS_IC_ENTRIES_PER_PAGE) |
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return; |
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|
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#if 0 |
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/* Use the physical address: */ |
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cpu->cd.DYNTRANS_ARCH.cur_physpage = (void *) |
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cpu->cd.DYNTRANS_ARCH.cur_ic_page; |
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a = cpu->cd.DYNTRANS_ARCH.cur_physpage->physaddr; |
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#else |
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/* Use the PC (virtual address): */ |
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a = cpu->pc; |
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#endif |
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|
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a &= ~((DYNTRANS_IC_ENTRIES_PER_PAGE-1) << |
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DYNTRANS_INSTR_ALIGNMENT_SHIFT); |
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a += low_pc << DYNTRANS_INSTR_ALIGNMENT_SHIFT; |
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|
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/* |
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* TODO: Everything below this line should be cleaned up :-) |
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*/ |
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a &= 0x03ffffff; |
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{ |
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static long long *array = NULL; |
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static char *array_16kpage_in_use = NULL; |
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static int n = 0; |
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a >>= DYNTRANS_INSTR_ALIGNMENT_SHIFT; |
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if (array == NULL) |
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array = zeroed_alloc(sizeof(long long) * 16384*1024); |
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if (array_16kpage_in_use == NULL) |
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array_16kpage_in_use = zeroed_alloc(sizeof(char) * 1024); |
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a &= (16384*1024-1); |
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array[a] ++; |
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array_16kpage_in_use[a / 16384] = 1; |
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n++; |
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if ((n & 0x3fffffff) == 0) { |
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FILE *f = fopen("statistics.out", "w"); |
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int i, j; |
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printf("Saving statistics... "); fflush(stdout); |
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for (i=0; i<1024; i++) |
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if (array_16kpage_in_use[i]) { |
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for (j=0; j<16384; j++) |
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if (array[i*16384 + j] > 0) |
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fprintf(f, "%lli\t" |
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"0x%016"PRIx64"\n", |
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(uint64_t)array[i*16384+j], |
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(uint64_t)((i*16384+j) << |
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DYNTRANS_INSTR_ALIGNMENT_SHIFT)); |
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} |
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fclose(f); |
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printf("n=0x%08x\n", n); |
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} |
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} |
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} |
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#endif /* PC statistics */ |
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|
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|
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#define S gather_statistics(cpu) |
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|
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|
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#ifdef DYNTRANS_VARIABLE_INSTRUCTION_LENGTH |
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#define I ic = cpu->cd.DYNTRANS_ARCH.next_ic; \ |
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cpu->cd.DYNTRANS_ARCH.next_ic += ic->arg[0]; \ |
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ic->f(cpu, ic); |
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#else |
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|
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/* The normal instruction execution core: */ |
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#define I ic = cpu->cd.DYNTRANS_ARCH.next_ic ++; ic->f(cpu, ic); |
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|
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/* For heavy debugging: */ |
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/* #define I ic = cpu->cd.DYNTRANS_ARCH.next_ic ++; \ |
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{ \ |
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int low_pc = ((size_t)cpu->cd.DYNTRANS_ARCH.next_ic - \ |
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(size_t)cpu->cd.DYNTRANS_ARCH.cur_ic_page) / \ |
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sizeof(struct DYNTRANS_IC); \ |
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printf("cur_ic_page=%p ic=%p (low_pc=0x%x)\n", \ |
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cpu->cd.DYNTRANS_ARCH.cur_ic_page, \ |
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ic, low_pc << DYNTRANS_INSTR_ALIGNMENT_SHIFT); \ |
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} \ |
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ic->f(cpu, ic); */ |
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|
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/* static long long nr_of_I_calls = 0; */ |
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|
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/* Temporary hack for finding NULL bugs: */ |
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/* #define I ic = cpu->cd.DYNTRANS_ARCH.next_ic ++; \ |
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nr_of_I_calls ++; \ |
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if (ic->f == NULL) { \ |
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int low_pc = ((size_t)cpu->cd.DYNTRANS_ARCH.next_ic - \ |
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(size_t)cpu->cd.DYNTRANS_ARCH.cur_ic_page) / \ |
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sizeof(struct DYNTRANS_IC); \ |
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cpu->pc &= ~((DYNTRANS_IC_ENTRIES_PER_PAGE-1) << \ |
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DYNTRANS_INSTR_ALIGNMENT_SHIFT); \ |
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cpu->pc += (low_pc << DYNTRANS_INSTR_ALIGNMENT_SHIFT);\ |
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printf("Crash at %016"PRIx64"\n", cpu->pc); \ |
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printf("nr of I calls: %lli\n", nr_of_I_calls); \ |
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printf("Next ic = %p\n", cpu->cd. \ |
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DYNTRANS_ARCH.next_ic); \ |
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printf("cur ic page = %p\n", cpu->cd. \ |
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DYNTRANS_ARCH.cur_ic_page); \ |
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cpu->running = 0; \ |
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return 0; \ |
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} \ |
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ic->f(cpu, ic); */ |
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|
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/* Temporary hack for MIPS, to hunt for 32-bit/64-bit sign-extension bugs: */ |
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/* #define I { int k; for (k=1; k<=31; k++) \ |
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cpu->cd.mips.gpr[k] = (int32_t)cpu->cd.mips.gpr[k];\ |
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if (cpu->cd.mips.gpr[0] != 0) { \ |
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fatal("NOOOOOO\n"); exit(1); \ |
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} \ |
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ic = cpu->cd.DYNTRANS_ARCH.next_ic ++; ic->f(cpu, ic); } |
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*/ |
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#endif |
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|
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|
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/* |
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* XXX_cpu_run_instr(): |
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* |
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* Execute one or more instructions on a specific CPU, using dyntrans. |
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* |
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* Return value is the number of instructions executed during this call, |
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* 0 if no instructions were executed. |
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*/ |
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int DYNTRANS_CPU_RUN_INSTR(struct emul *emul, struct cpu *cpu) |
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{ |
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/* |
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* TODO: Statistics stuff! |
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*/ |
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int show_opcode_statistics = 0; |
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|
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#ifdef DYNTRANS_DUALMODE_32 |
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uint64_t cached_pc; |
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#else |
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uint32_t cached_pc; |
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#endif |
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int low_pc, n_instrs; |
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|
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#ifdef DYNTRANS_DUALMODE_32 |
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if (cpu->is_32bit) |
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DYNTRANS_PC_TO_POINTERS32(cpu); |
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else |
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#endif |
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DYNTRANS_PC_TO_POINTERS(cpu); |
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|
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/* |
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* Interrupt assertion? (This is _below_ the initial PC to pointer |
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* conversion; if the conversion caused an exception of some kind |
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* then interrupts are probably disabled, and the exception will get |
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* priority over device interrupts.) |
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* |
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* TODO: Turn this into a family-specific function somewhere... |
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*/ |
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#ifdef DYNTRANS_ARM |
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if (cpu->cd.arm.irq_asserted && !(cpu->cd.arm.cpsr & ARM_FLAG_I)) |
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arm_exception(cpu, ARM_EXCEPTION_IRQ); |
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#endif |
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#ifdef DYNTRANS_MIPS |
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{ |
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int enabled, mask; |
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int status = cpu->cd.mips.coproc[0]->reg[COP0_STATUS]; |
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if (cpu->cd.mips.cpu_type.exc_model == EXC3K) { |
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/* R3000: */ |
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enabled = status & MIPS_SR_INT_IE; |
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} else { |
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/* R4000 and others: */ |
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enabled = (status & STATUS_IE) |
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&& !(status & STATUS_EXL) && !(status & STATUS_ERL); |
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/* Special case for R5900/C790/TX79: */ |
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if (cpu->cd.mips.cpu_type.rev == MIPS_R5900 && |
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!(status & R5900_STATUS_EIE)) |
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enabled = 0; |
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} |
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mask = status & cpu->cd.mips.coproc[0]->reg[COP0_CAUSE] |
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& STATUS_IM_MASK; |
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|
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if (enabled && mask) |
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mips_cpu_exception(cpu, EXCEPTION_INT, 0, 0, 0, 0, 0,0); |
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} |
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#endif |
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#ifdef DYNTRANS_PPC |
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if (cpu->cd.ppc.dec_intr_pending && cpu->cd.ppc.msr & PPC_MSR_EE) { |
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ppc_exception(cpu, PPC_EXCEPTION_DEC); |
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cpu->cd.ppc.dec_intr_pending = 0; |
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} |
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if (cpu->cd.ppc.irq_asserted && cpu->cd.ppc.msr & PPC_MSR_EE) |
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ppc_exception(cpu, PPC_EXCEPTION_EI); |
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#endif |
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|
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cached_pc = cpu->pc; |
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|
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cpu->n_translated_instrs = 0; |
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cpu->running_translated = 1; |
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|
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cpu->cd.DYNTRANS_ARCH.cur_physpage = (void *) |
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cpu->cd.DYNTRANS_ARCH.cur_ic_page; |
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|
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if (single_step || cpu->machine->instruction_trace |
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|| cpu->machine->register_dump) { |
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/* |
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* Single-step: |
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*/ |
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struct DYNTRANS_IC *ic = cpu->cd.DYNTRANS_ARCH.next_ic; |
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if (cpu->machine->register_dump) { |
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debug("\n"); |
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cpu_register_dump(cpu->machine, cpu, 1, 0x1); |
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} |
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if (cpu->machine->instruction_trace) { |
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#ifdef DYNTRANS_X86 |
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unsigned char instr[17]; |
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cpu->cd.x86.cursegment = X86_S_CS; |
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cpu->cd.x86.seg_override = 0; |
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#else |
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#ifdef DYNTRANS_M68K |
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unsigned char instr[16]; /* TODO: 16? */ |
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#else |
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unsigned char instr[4]; /* General case... */ |
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#endif |
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#endif |
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|
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if (!cpu->memory_rw(cpu, cpu->mem, cached_pc, &instr[0], |
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sizeof(instr), MEM_READ, CACHE_INSTRUCTION)) { |
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fatal("XXX_cpu_run_instr(): could not read " |
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"the instruction\n"); |
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} else { |
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cpu_disassemble_instr(cpu->machine, cpu, |
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instr, 1, 0); |
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#ifdef DYNTRANS_DELAYSLOT |
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/* Show the instruction in the delay slot, |
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if any: */ |
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if (cpu->instruction_has_delayslot == NULL) |
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fatal("WARNING: ihd func not yet" |
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" implemented?\n"); |
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else if (cpu->instruction_has_delayslot(cpu, |
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instr)) { |
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int saved_delayslot = cpu->delay_slot; |
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cpu->memory_rw(cpu, cpu->mem, cached_pc |
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+ sizeof(instr), &instr[0], |
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sizeof(instr), MEM_READ, |
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CACHE_INSTRUCTION); |
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cpu->delay_slot = DELAYED; |
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cpu->pc += sizeof(instr); |
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cpu_disassemble_instr(cpu->machine, |
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cpu, instr, 1, 0); |
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cpu->delay_slot = saved_delayslot; |
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cpu->pc -= sizeof(instr); |
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} |
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#endif |
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} |
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} |
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|
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/* When single-stepping, multiple instruction calls cannot |
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be combined into one. This clears all translations: */ |
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if (cpu->cd.DYNTRANS_ARCH.cur_physpage->flags & COMBINATIONS) { |
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int i; |
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for (i=0; i<DYNTRANS_IC_ENTRIES_PER_PAGE; i++) { |
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cpu->cd.DYNTRANS_ARCH.cur_physpage->ics[i].f = |
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#ifdef DYNTRANS_DUALMODE_32 |
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cpu->is_32bit? |
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instr32(to_be_translated) : |
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#endif |
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instr(to_be_translated); |
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#ifdef DYNTRANS_VARIABLE_INSTRUCTION_LENGTH |
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cpu->cd.DYNTRANS_ARCH.cur_physpage->ics[i]. |
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arg[0] = 0; |
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#endif |
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} |
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fatal("[ Note: The translation of physical page 0x%" |
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PRIx64" contained combinations of instructions; " |
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"these are now flushed because we are single-" |
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"stepping. ]\n", (long long)cpu->cd.DYNTRANS_ARCH. |
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cur_physpage->physaddr); |
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cpu->cd.DYNTRANS_ARCH.cur_physpage->flags &= |
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~(COMBINATIONS | TRANSLATIONS); |
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} |
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|
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if (show_opcode_statistics) |
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S; |
337 |
|
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/* Execute just one instruction: */ |
339 |
I; |
340 |
|
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n_instrs = 1; |
342 |
} else if (cpu->machine->cycle_accurate) { |
343 |
/* Executing multiple instructions, and call devices' |
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tick functions: */ |
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n_instrs = 0; |
346 |
for (;;) { |
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struct DYNTRANS_IC *ic; |
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/* TODO: continue here */ |
349 |
int64_t cycles = cpu->cd.avr.extra_cycles; |
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I; |
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n_instrs += 1; |
352 |
cycles = cpu->cd.avr.extra_cycles - cycles + 1; |
353 |
/* The instruction took 'cycles' cycles. */ |
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/* printf("A\n"); */ |
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while (cycles-- > 0) |
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cpu->machine->tick_func[1](cpu, cpu->machine->tick_extra[1]); |
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/* printf("B\n"); */ |
358 |
|
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if (!cpu->running_translated || |
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n_instrs + cpu->n_translated_instrs >= |
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N_SAFE_DYNTRANS_LIMIT / 2) |
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break; |
363 |
} |
364 |
} else if (show_opcode_statistics) { |
365 |
/* Gather statistics while executing multiple instructions: */ |
366 |
n_instrs = 0; |
367 |
for (;;) { |
368 |
struct DYNTRANS_IC *ic; |
369 |
|
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S; I; S; I; S; I; S; I; S; I; S; I; |
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S; I; S; I; S; I; S; I; S; I; S; I; |
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S; I; S; I; S; I; S; I; S; I; S; I; |
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S; I; S; I; S; I; S; I; S; I; S; I; |
374 |
|
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n_instrs += 24; |
376 |
|
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if (!cpu->running_translated || |
378 |
n_instrs + cpu->n_translated_instrs >= |
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N_SAFE_DYNTRANS_LIMIT / 2) |
380 |
break; |
381 |
} |
382 |
} else { |
383 |
/* Execute multiple instructions: */ |
384 |
n_instrs = 0; |
385 |
for (;;) { |
386 |
struct DYNTRANS_IC *ic; |
387 |
|
388 |
I; I; I; I; I; I; I; I; I; I; |
389 |
I; I; I; I; I; I; I; I; I; I; |
390 |
I; I; I; I; I; I; I; I; I; I; |
391 |
I; I; I; I; I; I; I; I; I; I; |
392 |
I; I; I; I; I; I; I; I; I; I; |
393 |
|
394 |
I; I; I; I; I; I; I; I; I; I; |
395 |
|
396 |
n_instrs += 60; |
397 |
|
398 |
if (!cpu->running_translated || |
399 |
n_instrs + cpu->n_translated_instrs >= |
400 |
N_SAFE_DYNTRANS_LIMIT / 2) |
401 |
break; |
402 |
} |
403 |
} |
404 |
|
405 |
n_instrs += cpu->n_translated_instrs; |
406 |
|
407 |
/* Synchronize the program counter: */ |
408 |
low_pc = ((size_t)cpu->cd.DYNTRANS_ARCH.next_ic - (size_t) |
409 |
cpu->cd.DYNTRANS_ARCH.cur_ic_page) / sizeof(struct DYNTRANS_IC); |
410 |
if (low_pc >= 0 && low_pc < DYNTRANS_IC_ENTRIES_PER_PAGE) { |
411 |
cpu->pc &= ~((DYNTRANS_IC_ENTRIES_PER_PAGE-1) << |
412 |
DYNTRANS_INSTR_ALIGNMENT_SHIFT); |
413 |
cpu->pc += (low_pc << DYNTRANS_INSTR_ALIGNMENT_SHIFT); |
414 |
} else if (low_pc == DYNTRANS_IC_ENTRIES_PER_PAGE) { |
415 |
/* Switch to next page: */ |
416 |
cpu->pc &= ~((DYNTRANS_IC_ENTRIES_PER_PAGE-1) << |
417 |
DYNTRANS_INSTR_ALIGNMENT_SHIFT); |
418 |
cpu->pc += (DYNTRANS_IC_ENTRIES_PER_PAGE << |
419 |
DYNTRANS_INSTR_ALIGNMENT_SHIFT); |
420 |
} else if (low_pc == DYNTRANS_IC_ENTRIES_PER_PAGE + 1) { |
421 |
/* Switch to next page and skip an instruction which was |
422 |
already executed (in a delay slot): */ |
423 |
cpu->pc &= ~((DYNTRANS_IC_ENTRIES_PER_PAGE-1) << |
424 |
DYNTRANS_INSTR_ALIGNMENT_SHIFT); |
425 |
cpu->pc += ((DYNTRANS_IC_ENTRIES_PER_PAGE + 1) << |
426 |
DYNTRANS_INSTR_ALIGNMENT_SHIFT); |
427 |
} |
428 |
|
429 |
#ifdef DYNTRANS_MIPS |
430 |
/* Update the count register (on everything except EXC3K): */ |
431 |
if (cpu->cd.mips.cpu_type.exc_model != EXC3K) { |
432 |
uint32_t old = cpu->cd.mips.coproc[0]->reg[COP0_COUNT]; |
433 |
int32_t diff1 = cpu->cd.mips.coproc[0]->reg[COP0_COMPARE] - old; |
434 |
int32_t diff2; |
435 |
cpu->cd.mips.coproc[0]->reg[COP0_COUNT] = |
436 |
(int32_t) (old + n_instrs); |
437 |
diff2 = cpu->cd.mips.coproc[0]->reg[COP0_COMPARE] - |
438 |
cpu->cd.mips.coproc[0]->reg[COP0_COUNT]; |
439 |
if (cpu->cd.mips.compare_register_set && diff1>0 && diff2<=0) |
440 |
cpu_interrupt(cpu, 7); |
441 |
} |
442 |
#endif |
443 |
#ifdef DYNTRANS_PPC |
444 |
/* Update the Decrementer and Time base registers: */ |
445 |
{ |
446 |
uint32_t old = cpu->cd.ppc.spr[SPR_DEC]; |
447 |
cpu->cd.ppc.spr[SPR_DEC] = (uint32_t) (old - n_instrs); |
448 |
if ((old >> 31) == 0 && (cpu->cd.ppc.spr[SPR_DEC] >> 31) == 1 |
449 |
&& !(cpu->cd.ppc.cpu_type.flags & PPC_NO_DEC)) |
450 |
cpu->cd.ppc.dec_intr_pending = 1; |
451 |
old = cpu->cd.ppc.spr[SPR_TBL]; |
452 |
cpu->cd.ppc.spr[SPR_TBL] += n_instrs; |
453 |
if ((old >> 31) == 1 && (cpu->cd.ppc.spr[SPR_TBL] >> 31) == 0) |
454 |
cpu->cd.ppc.spr[SPR_TBU] ++; |
455 |
} |
456 |
#endif |
457 |
|
458 |
/* Return the nr of instructions executed: */ |
459 |
return n_instrs; |
460 |
} |
461 |
#endif /* DYNTRANS_CPU_RUN_INSTR */ |
462 |
|
463 |
|
464 |
|
465 |
#ifdef DYNTRANS_FUNCTION_TRACE |
466 |
/* |
467 |
* XXX_cpu_functioncall_trace(): |
468 |
* |
469 |
* Without this function, the main trace tree function prints something |
470 |
* like <f()> or <0x1234()> on a function call. It is up to this |
471 |
* function to print the arguments passed. |
472 |
*/ |
473 |
void DYNTRANS_FUNCTION_TRACE(struct cpu *cpu, uint64_t f, int n_args) |
474 |
{ |
475 |
char strbuf[50]; |
476 |
char *symbol; |
477 |
uint64_t ot; |
478 |
int x, print_dots = 1, n_args_to_print = |
479 |
#if defined(DYNTRANS_ALPHA) || defined(DYNTRANS_SPARC) |
480 |
6 |
481 |
#else |
482 |
#ifdef DYNTRANS_SH |
483 |
8 |
484 |
#else |
485 |
4 /* Default value for most archs */ |
486 |
#endif |
487 |
#endif |
488 |
; |
489 |
|
490 |
if (n_args >= 0 && n_args <= n_args_to_print) { |
491 |
print_dots = 0; |
492 |
n_args_to_print = n_args; |
493 |
} |
494 |
|
495 |
/* |
496 |
* TODO: The type of each argument should be taken from the symbol |
497 |
* table, in some way. |
498 |
* |
499 |
* The code here does a kind of "heuristic guess" regarding what the |
500 |
* argument values might mean. Sometimes the output looks weird, but |
501 |
* usually it looks good enough. |
502 |
* |
503 |
* Print ".." afterwards to show that there might be more arguments |
504 |
* than were passed in register. |
505 |
*/ |
506 |
for (x=0; x<n_args_to_print; x++) { |
507 |
int64_t d; |
508 |
#ifdef DYNTRANS_X86 |
509 |
d = 0; /* TODO */ |
510 |
#else |
511 |
/* Args in registers: */ |
512 |
d = cpu->cd.DYNTRANS_ARCH. |
513 |
#ifdef DYNTRANS_ALPHA |
514 |
r[ALPHA_A0 |
515 |
#endif |
516 |
#ifdef DYNTRANS_ARM |
517 |
r[0 |
518 |
#endif |
519 |
#ifdef DYNTRANS_AVR |
520 |
/* TODO: 24,25 = first register, but then |
521 |
they go downwards, ie. 22,23 and so on */ |
522 |
r[24 |
523 |
#endif |
524 |
#ifdef DYNTRANS_HPPA |
525 |
r[0 /* TODO */ |
526 |
#endif |
527 |
#ifdef DYNTRANS_I960 |
528 |
r[0 /* TODO */ |
529 |
#endif |
530 |
#ifdef DYNTRANS_IA64 |
531 |
r[0 /* TODO */ |
532 |
#endif |
533 |
#ifdef DYNTRANS_M68K |
534 |
d[0 /* TODO */ |
535 |
#endif |
536 |
#ifdef DYNTRANS_MIPS |
537 |
gpr[MIPS_GPR_A0 |
538 |
#endif |
539 |
#ifdef DYNTRANS_PPC |
540 |
gpr[3 |
541 |
#endif |
542 |
#ifdef DYNTRANS_SH |
543 |
r[2 |
544 |
#endif |
545 |
#ifdef DYNTRANS_SPARC |
546 |
r[24 |
547 |
#endif |
548 |
+ x]; |
549 |
#endif |
550 |
symbol = get_symbol_name(&cpu->machine->symbol_context, d, &ot); |
551 |
|
552 |
if (d > -256 && d < 256) |
553 |
fatal("%i", (int)d); |
554 |
else if (memory_points_to_string(cpu, cpu->mem, d, 1)) |
555 |
fatal("\"%s\"", memory_conv_to_string(cpu, |
556 |
cpu->mem, d, strbuf, sizeof(strbuf))); |
557 |
else if (symbol != NULL && ot == 0) |
558 |
fatal("&%s", symbol); |
559 |
else { |
560 |
if (cpu->is_32bit) |
561 |
fatal("0x%"PRIx32, (uint32_t)d); |
562 |
else |
563 |
fatal("0x%"PRIx64, (uint64_t)d); |
564 |
} |
565 |
|
566 |
if (x < n_args_to_print - 1) |
567 |
fatal(","); |
568 |
} |
569 |
|
570 |
if (print_dots) |
571 |
fatal(",.."); |
572 |
} |
573 |
#endif |
574 |
|
575 |
|
576 |
|
577 |
#ifdef DYNTRANS_TC_ALLOCATE_DEFAULT_PAGE |
578 |
|
579 |
/* forward declaration of to_be_translated and end_of_page: */ |
580 |
static void instr(to_be_translated)(struct cpu *, struct DYNTRANS_IC *); |
581 |
static void instr(end_of_page)(struct cpu *,struct DYNTRANS_IC *); |
582 |
#ifdef DYNTRANS_DUALMODE_32 |
583 |
static void instr32(to_be_translated)(struct cpu *, struct DYNTRANS_IC *); |
584 |
static void instr32(end_of_page)(struct cpu *,struct DYNTRANS_IC *); |
585 |
#endif |
586 |
|
587 |
#ifdef DYNTRANS_DELAYSLOT |
588 |
static void instr(end_of_page2)(struct cpu *,struct DYNTRANS_IC *); |
589 |
#ifdef DYNTRANS_DUALMODE_32 |
590 |
static void instr32(end_of_page2)(struct cpu *,struct DYNTRANS_IC *); |
591 |
#endif |
592 |
#endif |
593 |
|
594 |
/* |
595 |
* XXX_tc_allocate_default_page(): |
596 |
* |
597 |
* Create a default page (with just pointers to instr(to_be_translated) |
598 |
* at cpu->translation_cache_cur_ofs. |
599 |
*/ |
600 |
static void DYNTRANS_TC_ALLOCATE_DEFAULT_PAGE(struct cpu *cpu, |
601 |
uint64_t physaddr) |
602 |
{ |
603 |
struct DYNTRANS_TC_PHYSPAGE *ppp; |
604 |
int i; |
605 |
|
606 |
/* Create the physpage header: */ |
607 |
ppp = (struct DYNTRANS_TC_PHYSPAGE *)(cpu->translation_cache |
608 |
+ cpu->translation_cache_cur_ofs); |
609 |
ppp->next_ofs = 0; |
610 |
ppp->physaddr = physaddr; |
611 |
|
612 |
/* TODO: Is this faster than copying an entire template page? */ |
613 |
for (i=0; i<DYNTRANS_IC_ENTRIES_PER_PAGE; i++) { |
614 |
ppp->ics[i].f = |
615 |
#ifdef DYNTRANS_DUALMODE_32 |
616 |
cpu->is_32bit? instr32(to_be_translated) : |
617 |
#endif |
618 |
instr(to_be_translated); |
619 |
#ifdef DYNTRANS_VARIABLE_INSTRUCTION_LENGTH |
620 |
ppp->ics[i].arg[0] = 0; |
621 |
#endif |
622 |
} |
623 |
|
624 |
/* End-of-page: */ |
625 |
ppp->ics[DYNTRANS_IC_ENTRIES_PER_PAGE + 0].f = |
626 |
#ifdef DYNTRANS_DUALMODE_32 |
627 |
cpu->is_32bit? instr32(end_of_page) : |
628 |
#endif |
629 |
instr(end_of_page); |
630 |
|
631 |
#ifdef DYNTRANS_VARIABLE_INSTRUCTION_LENGTH |
632 |
ppp->ics[DYNTRANS_IC_ENTRIES_PER_PAGE + 0].arg[0] = 0; |
633 |
#endif |
634 |
|
635 |
/* End-of-page-2, for delay-slot architectures: */ |
636 |
#ifdef DYNTRANS_DELAYSLOT |
637 |
ppp->ics[DYNTRANS_IC_ENTRIES_PER_PAGE + 1].f = |
638 |
#ifdef DYNTRANS_DUALMODE_32 |
639 |
cpu->is_32bit? instr32(end_of_page2) : |
640 |
#endif |
641 |
instr(end_of_page2); |
642 |
#endif |
643 |
|
644 |
cpu->translation_cache_cur_ofs += sizeof(struct DYNTRANS_TC_PHYSPAGE); |
645 |
|
646 |
cpu->translation_cache_cur_ofs --; |
647 |
cpu->translation_cache_cur_ofs |= 63; |
648 |
cpu->translation_cache_cur_ofs ++; |
649 |
} |
650 |
#endif /* DYNTRANS_TC_ALLOCATE_DEFAULT_PAGE */ |
651 |
|
652 |
|
653 |
|
654 |
#ifdef DYNTRANS_PC_TO_POINTERS_FUNC |
655 |
/* |
656 |
* XXX_pc_to_pointers_generic(): |
657 |
* |
658 |
* Generic case. See DYNTRANS_PC_TO_POINTERS_FUNC below. |
659 |
*/ |
660 |
void DYNTRANS_PC_TO_POINTERS_GENERIC(struct cpu *cpu) |
661 |
{ |
662 |
#ifdef MODE32 |
663 |
uint32_t |
664 |
#else |
665 |
uint64_t |
666 |
#endif |
667 |
cached_pc = cpu->pc, physaddr = 0; |
668 |
uint32_t physpage_ofs; |
669 |
int ok, pagenr, table_index; |
670 |
uint32_t *physpage_entryp; |
671 |
struct DYNTRANS_TC_PHYSPAGE *ppp; |
672 |
|
673 |
#ifdef MODE32 |
674 |
int index = DYNTRANS_ADDR_TO_PAGENR(cached_pc); |
675 |
#else |
676 |
const uint32_t mask1 = (1 << DYNTRANS_L1N) - 1; |
677 |
const uint32_t mask2 = (1 << DYNTRANS_L2N) - 1; |
678 |
const uint32_t mask3 = (1 << DYNTRANS_L3N) - 1; |
679 |
uint32_t x1, x2, x3; |
680 |
struct DYNTRANS_L2_64_TABLE *l2; |
681 |
struct DYNTRANS_L3_64_TABLE *l3; |
682 |
|
683 |
x1 = (cached_pc >> (64-DYNTRANS_L1N)) & mask1; |
684 |
x2 = (cached_pc >> (64-DYNTRANS_L1N-DYNTRANS_L2N)) & mask2; |
685 |
x3 = (cached_pc >> (64-DYNTRANS_L1N-DYNTRANS_L2N-DYNTRANS_L3N)) & mask3; |
686 |
/* fatal("X3: cached_pc=%016"PRIx64" x1=%x x2=%x x3=%x\n", |
687 |
(uint64_t)cached_pc, (int)x1, (int)x2, (int)x3); */ |
688 |
l2 = cpu->cd.DYNTRANS_ARCH.l1_64[x1]; |
689 |
/* fatal(" l2 = %p\n", l2); */ |
690 |
l3 = l2->l3[x2]; |
691 |
/* fatal(" l3 = %p\n", l3); */ |
692 |
#endif |
693 |
|
694 |
/* Virtual to physical address translation: */ |
695 |
ok = 0; |
696 |
#ifdef MODE32 |
697 |
if (cpu->cd.DYNTRANS_ARCH.host_load[index] != NULL) { |
698 |
physaddr = cpu->cd.DYNTRANS_ARCH.phys_addr[index]; |
699 |
ok = 1; |
700 |
} |
701 |
#else |
702 |
if (l3->host_load[x3] != NULL) { |
703 |
physaddr = l3->phys_addr[x3]; |
704 |
ok = 1; |
705 |
} |
706 |
#endif |
707 |
|
708 |
if (!ok) { |
709 |
uint64_t paddr; |
710 |
if (cpu->translate_address != NULL) |
711 |
ok = cpu->translate_address(cpu, cached_pc, |
712 |
&paddr, FLAG_INSTR); |
713 |
else { |
714 |
paddr = cached_pc; |
715 |
ok = 1; |
716 |
} |
717 |
if (!ok) { |
718 |
/* fatal("TODO: instruction vaddr=>paddr translation " |
719 |
"failed. vaddr=0x%"PRIx64"\n", (uint64_t)cached_pc); |
720 |
fatal("!! cpu->pc=0x%"PRIx64"\n", (uint64_t)cpu->pc); */ |
721 |
|
722 |
ok = cpu->translate_address(cpu, cpu->pc, &paddr, |
723 |
FLAG_INSTR); |
724 |
|
725 |
/* printf("EXCEPTION HANDLER: vaddr = 0x%x ==> " |
726 |
"paddr = 0x%x\n", (int)cpu->pc, (int)paddr); |
727 |
fatal("!? cpu->pc=0x%"PRIx64"\n", (uint64_t)cpu->pc); */ |
728 |
|
729 |
if (!ok) { |
730 |
fatal("FATAL: could not find physical" |
731 |
" address of the exception handler?"); |
732 |
exit(1); |
733 |
} |
734 |
} |
735 |
|
736 |
/* If there was an exception, the PC can have changed. |
737 |
Update cached_pc: */ |
738 |
cached_pc = cpu->pc; |
739 |
|
740 |
#ifdef MODE32 |
741 |
index = DYNTRANS_ADDR_TO_PAGENR(cached_pc); |
742 |
#else |
743 |
x1 = (cached_pc >> (64-DYNTRANS_L1N)) & mask1; |
744 |
x2 = (cached_pc >> (64-DYNTRANS_L1N-DYNTRANS_L2N)) & mask2; |
745 |
x3 = (cached_pc >> (64-DYNTRANS_L1N-DYNTRANS_L2N-DYNTRANS_L3N)) |
746 |
& mask3; |
747 |
#endif |
748 |
|
749 |
physaddr = paddr; |
750 |
} |
751 |
|
752 |
#ifdef MODE32 |
753 |
if (cpu->cd.DYNTRANS_ARCH.host_load[index] == NULL) { |
754 |
#else |
755 |
if (l3->host_load[x3] == NULL) { |
756 |
#endif |
757 |
unsigned char *host_page = memory_paddr_to_hostaddr(cpu->mem, |
758 |
physaddr, MEM_READ); |
759 |
if (host_page != NULL) { |
760 |
int q = DYNTRANS_PAGESIZE - 1; |
761 |
host_page += (physaddr & |
762 |
((1 << BITS_PER_MEMBLOCK) - 1) & ~q); |
763 |
cpu->update_translation_table(cpu, cached_pc & ~q, |
764 |
host_page, TLB_CODE, physaddr & ~q); |
765 |
#ifndef MODE32 |
766 |
/* Recalculate l2 and l3, since they might have |
767 |
changed now: */ |
768 |
l2 = cpu->cd.DYNTRANS_ARCH.l1_64[x1]; |
769 |
l3 = l2->l3[x2]; |
770 |
#endif |
771 |
} |
772 |
} |
773 |
|
774 |
if (cpu->translation_cache_cur_ofs >= DYNTRANS_CACHE_SIZE) { |
775 |
debug("[ dyntrans: resetting the translation cache ]\n"); |
776 |
cpu_create_or_reset_tc(cpu); |
777 |
} |
778 |
|
779 |
pagenr = DYNTRANS_ADDR_TO_PAGENR(physaddr); |
780 |
table_index = PAGENR_TO_TABLE_INDEX(pagenr); |
781 |
|
782 |
physpage_entryp = &(((uint32_t *)cpu->translation_cache)[table_index]); |
783 |
physpage_ofs = *physpage_entryp; |
784 |
ppp = NULL; |
785 |
|
786 |
/* Traverse the physical page chain: */ |
787 |
while (physpage_ofs != 0) { |
788 |
ppp = (struct DYNTRANS_TC_PHYSPAGE *)(cpu->translation_cache |
789 |
+ physpage_ofs); |
790 |
/* If we found the page in the cache, then we're done: */ |
791 |
if (DYNTRANS_ADDR_TO_PAGENR(ppp->physaddr) == pagenr) |
792 |
break; |
793 |
/* Try the next page in the chain: */ |
794 |
physpage_ofs = ppp->next_ofs; |
795 |
} |
796 |
|
797 |
/* If the offset is 0 (or ppp is NULL), then we need to create a |
798 |
new "default" empty translation page. */ |
799 |
|
800 |
if (ppp == NULL) { |
801 |
/* fatal("CREATING page %lli (physaddr 0x%"PRIx64"), table " |
802 |
"index %i\n", (long long)pagenr, (uint64_t)physaddr, |
803 |
(int)table_index); */ |
804 |
*physpage_entryp = physpage_ofs = |
805 |
cpu->translation_cache_cur_ofs; |
806 |
|
807 |
/* Allocate a default page, with to_be_translated entries: */ |
808 |
DYNTRANS_TC_ALLOCATE(cpu, physaddr); |
809 |
|
810 |
ppp = (struct DYNTRANS_TC_PHYSPAGE *)(cpu->translation_cache |
811 |
+ physpage_ofs); |
812 |
} |
813 |
|
814 |
#ifdef MODE32 |
815 |
if (cpu->cd.DYNTRANS_ARCH.host_load[index] != NULL) |
816 |
cpu->cd.DYNTRANS_ARCH.phys_page[index] = ppp; |
817 |
#else |
818 |
if (l3->host_load[x3] != NULL) |
819 |
l3->phys_page[x3] = ppp; |
820 |
#endif |
821 |
|
822 |
#ifdef MODE32 |
823 |
/* Small optimization: only mark the physical page as non-writable |
824 |
if it did not contain translations. (Because if it does contain |
825 |
translations, it is already non-writable.) */ |
826 |
if (!cpu->cd.DYNTRANS_ARCH.phystranslation[pagenr >> 5] & |
827 |
(1 << (pagenr & 31))) |
828 |
#endif |
829 |
cpu->invalidate_translation_caches(cpu, physaddr, |
830 |
JUST_MARK_AS_NON_WRITABLE | INVALIDATE_PADDR); |
831 |
|
832 |
cpu->cd.DYNTRANS_ARCH.cur_ic_page = &ppp->ics[0]; |
833 |
|
834 |
cpu->cd.DYNTRANS_ARCH.next_ic = cpu->cd.DYNTRANS_ARCH.cur_ic_page + |
835 |
DYNTRANS_PC_TO_IC_ENTRY(cached_pc); |
836 |
|
837 |
/* printf("cached_pc=0x%016"PRIx64" pagenr=%lli table_index=%lli, " |
838 |
"physpage_ofs=0x%016"PRIx64"\n", (uint64_t)cached_pc, (long long) |
839 |
pagenr, (long long)table_index, (uint64_t)physpage_ofs); */ |
840 |
} |
841 |
|
842 |
|
843 |
/* |
844 |
* XXX_pc_to_pointers(): |
845 |
* |
846 |
* This function uses the current program counter (a virtual address) to |
847 |
* find out which physical translation page to use, and then sets the current |
848 |
* translation page pointers to that page. |
849 |
* |
850 |
* If there was no translation page for that physical page, then an empty |
851 |
* one is created. |
852 |
* |
853 |
* NOTE: This is the quick lookup version. See |
854 |
* DYNTRANS_PC_TO_POINTERS_GENERIC above for the generic case. |
855 |
*/ |
856 |
void DYNTRANS_PC_TO_POINTERS_FUNC(struct cpu *cpu) |
857 |
{ |
858 |
#ifdef MODE32 |
859 |
uint32_t |
860 |
#else |
861 |
uint64_t |
862 |
#endif |
863 |
cached_pc = cpu->pc; |
864 |
struct DYNTRANS_TC_PHYSPAGE *ppp; |
865 |
|
866 |
#ifdef MODE32 |
867 |
int index; |
868 |
index = DYNTRANS_ADDR_TO_PAGENR(cached_pc); |
869 |
ppp = cpu->cd.DYNTRANS_ARCH.phys_page[index]; |
870 |
if (ppp != NULL) |
871 |
goto have_it; |
872 |
#else |
873 |
const uint32_t mask1 = (1 << DYNTRANS_L1N) - 1; |
874 |
const uint32_t mask2 = (1 << DYNTRANS_L2N) - 1; |
875 |
const uint32_t mask3 = (1 << DYNTRANS_L3N) - 1; |
876 |
uint32_t x1, x2, x3; |
877 |
struct DYNTRANS_L2_64_TABLE *l2; |
878 |
struct DYNTRANS_L3_64_TABLE *l3; |
879 |
|
880 |
x1 = (cached_pc >> (64-DYNTRANS_L1N)) & mask1; |
881 |
x2 = (cached_pc >> (64-DYNTRANS_L1N-DYNTRANS_L2N)) & mask2; |
882 |
x3 = (cached_pc >> (64-DYNTRANS_L1N-DYNTRANS_L2N-DYNTRANS_L3N)) & mask3; |
883 |
l2 = cpu->cd.DYNTRANS_ARCH.l1_64[x1]; |
884 |
l3 = l2->l3[x2]; |
885 |
ppp = l3->phys_page[x3]; |
886 |
if (ppp != NULL) |
887 |
goto have_it; |
888 |
#endif |
889 |
|
890 |
DYNTRANS_PC_TO_POINTERS_GENERIC(cpu); |
891 |
return; |
892 |
|
893 |
/* Quick return path: */ |
894 |
have_it: |
895 |
cpu->cd.DYNTRANS_ARCH.cur_ic_page = &ppp->ics[0]; |
896 |
cpu->cd.DYNTRANS_ARCH.next_ic = cpu->cd.DYNTRANS_ARCH.cur_ic_page + |
897 |
DYNTRANS_PC_TO_IC_ENTRY(cached_pc); |
898 |
|
899 |
/* printf("cached_pc=0x%016"PRIx64" pagenr=%lli table_index=%lli, " |
900 |
"physpage_ofs=0x%016"PRIx64"\n", (uint64_t)cached_pc, (long long) |
901 |
pagenr, (long long)table_index, (uint64_t)physpage_ofs); */ |
902 |
} |
903 |
#endif /* DYNTRANS_PC_TO_POINTERS_FUNC */ |
904 |
|
905 |
|
906 |
|
907 |
#ifdef DYNTRANS_INIT_64BIT_DUMMY_TABLES |
908 |
/* |
909 |
* XXX_init_64bit_dummy_tables(): |
910 |
* |
911 |
* Initializes 64-bit dummy tables and pointers. |
912 |
*/ |
913 |
void DYNTRANS_INIT_64BIT_DUMMY_TABLES(struct cpu *cpu) |
914 |
{ |
915 |
struct DYNTRANS_L2_64_TABLE *dummy_l2; |
916 |
struct DYNTRANS_L3_64_TABLE *dummy_l3; |
917 |
int x1, x2; |
918 |
|
919 |
if (cpu->is_32bit) |
920 |
return; |
921 |
|
922 |
dummy_l2 = zeroed_alloc(sizeof(struct DYNTRANS_L2_64_TABLE)); |
923 |
dummy_l3 = zeroed_alloc(sizeof(struct DYNTRANS_L3_64_TABLE)); |
924 |
|
925 |
cpu->cd.DYNTRANS_ARCH.l2_64_dummy = dummy_l2; |
926 |
cpu->cd.DYNTRANS_ARCH.l3_64_dummy = dummy_l3; |
927 |
|
928 |
for (x1 = 0; x1 < (1 << DYNTRANS_L1N); x1 ++) |
929 |
cpu->cd.DYNTRANS_ARCH.l1_64[x1] = dummy_l2; |
930 |
|
931 |
for (x2 = 0; x2 < (1 << DYNTRANS_L2N); x2 ++) |
932 |
dummy_l2->l3[x2] = dummy_l3; |
933 |
} |
934 |
#endif /* DYNTRANS_INIT_64BIT_DUMMY_TABLES */ |
935 |
|
936 |
|
937 |
|
938 |
#ifdef DYNTRANS_INVAL_ENTRY |
939 |
/* |
940 |
* XXX_invalidate_tlb_entry(): |
941 |
* |
942 |
* Invalidate one translation entry (based on virtual address). |
943 |
* |
944 |
* If the JUST_MARK_AS_NON_WRITABLE flag is set, then the translation entry |
945 |
* is just downgraded to non-writable (ie the host store page is set to |
946 |
* NULL). Otherwise, the entire translation is removed. |
947 |
*/ |
948 |
static void DYNTRANS_INVALIDATE_TLB_ENTRY(struct cpu *cpu, |
949 |
#ifdef MODE32 |
950 |
uint32_t |
951 |
#else |
952 |
uint64_t |
953 |
#endif |
954 |
vaddr_page, int flags) |
955 |
{ |
956 |
#ifdef MODE32 |
957 |
uint32_t index = DYNTRANS_ADDR_TO_PAGENR(vaddr_page); |
958 |
|
959 |
#ifdef DYNTRANS_ARM |
960 |
cpu->cd.DYNTRANS_ARCH.is_userpage[index >> 5] &= ~(1 << (index & 31)); |
961 |
#endif |
962 |
|
963 |
if (flags & JUST_MARK_AS_NON_WRITABLE) { |
964 |
/* printf("JUST MARKING NON-W: vaddr 0x%08x\n", |
965 |
(int)vaddr_page); */ |
966 |
cpu->cd.DYNTRANS_ARCH.host_store[index] = NULL; |
967 |
} else { |
968 |
int tlbi = cpu->cd.DYNTRANS_ARCH.vaddr_to_tlbindex[index]; |
969 |
cpu->cd.DYNTRANS_ARCH.host_load[index] = NULL; |
970 |
cpu->cd.DYNTRANS_ARCH.host_store[index] = NULL; |
971 |
cpu->cd.DYNTRANS_ARCH.phys_addr[index] = 0; |
972 |
cpu->cd.DYNTRANS_ARCH.phys_page[index] = NULL; |
973 |
if (tlbi > 0) |
974 |
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[tlbi-1].valid = 0; |
975 |
cpu->cd.DYNTRANS_ARCH.vaddr_to_tlbindex[index] = 0; |
976 |
} |
977 |
#else |
978 |
const uint32_t mask1 = (1 << DYNTRANS_L1N) - 1; |
979 |
const uint32_t mask2 = (1 << DYNTRANS_L2N) - 1; |
980 |
const uint32_t mask3 = (1 << DYNTRANS_L3N) - 1; |
981 |
uint32_t x1, x2, x3; |
982 |
struct DYNTRANS_L2_64_TABLE *l2; |
983 |
struct DYNTRANS_L3_64_TABLE *l3; |
984 |
|
985 |
x1 = (vaddr_page >> (64-DYNTRANS_L1N)) & mask1; |
986 |
x2 = (vaddr_page >> (64-DYNTRANS_L1N-DYNTRANS_L2N)) & mask2; |
987 |
x3 = (vaddr_page >> (64-DYNTRANS_L1N-DYNTRANS_L2N-DYNTRANS_L3N))& mask3; |
988 |
|
989 |
l2 = cpu->cd.DYNTRANS_ARCH.l1_64[x1]; |
990 |
if (l2 == cpu->cd.DYNTRANS_ARCH.l2_64_dummy) |
991 |
return; |
992 |
|
993 |
l3 = l2->l3[x2]; |
994 |
if (l3 == cpu->cd.DYNTRANS_ARCH.l3_64_dummy) |
995 |
return; |
996 |
|
997 |
if (flags & JUST_MARK_AS_NON_WRITABLE) { |
998 |
l3->host_store[x3] = NULL; |
999 |
return; |
1000 |
} |
1001 |
l3->host_load[x3] = NULL; |
1002 |
l3->host_store[x3] = NULL; |
1003 |
l3->phys_addr[x3] = 0; |
1004 |
l3->phys_page[x3] = NULL; |
1005 |
l3->refcount --; |
1006 |
if (l3->refcount < 0) { |
1007 |
fatal("xxx_invalidate_tlb_entry(): huh? Refcount bug.\n"); |
1008 |
exit(1); |
1009 |
} |
1010 |
if (l3->refcount == 0) { |
1011 |
l3->next = cpu->cd.DYNTRANS_ARCH.next_free_l3; |
1012 |
cpu->cd.DYNTRANS_ARCH.next_free_l3 = l3; |
1013 |
l2->l3[x2] = cpu->cd.DYNTRANS_ARCH.l3_64_dummy; |
1014 |
|
1015 |
l2->refcount --; |
1016 |
if (l2->refcount < 0) { |
1017 |
fatal("xxx_invalidate_tlb_entry(): Refcount bug L2.\n"); |
1018 |
exit(1); |
1019 |
} |
1020 |
if (l2->refcount == 0) { |
1021 |
l2->next = cpu->cd.DYNTRANS_ARCH.next_free_l2; |
1022 |
cpu->cd.DYNTRANS_ARCH.next_free_l2 = l2; |
1023 |
cpu->cd.DYNTRANS_ARCH.l1_64[x1] = |
1024 |
cpu->cd.DYNTRANS_ARCH.l2_64_dummy; |
1025 |
} |
1026 |
} |
1027 |
#endif |
1028 |
} |
1029 |
#endif |
1030 |
|
1031 |
|
1032 |
#ifdef DYNTRANS_INVALIDATE_TC |
1033 |
/* |
1034 |
* XXX_invalidate_translation_caches(): |
1035 |
* |
1036 |
* Invalidate all entries matching a specific physical address, a specific |
1037 |
* virtual address, or ALL entries. |
1038 |
* |
1039 |
* flags should be one of |
1040 |
* INVALIDATE_PADDR INVALIDATE_VADDR or INVALIDATE_ALL |
1041 |
* |
1042 |
* In addition, for INVALIDATE_ALL, INVALIDATE_VADDR_UPPER4 may be set and |
1043 |
* bit 31..28 of addr are used to select the virtual addresses to invalidate. |
1044 |
* (This is useful for PowerPC emulation, when segment registers are updated.) |
1045 |
* |
1046 |
* In the case when all translations are invalidated, paddr doesn't need |
1047 |
* to be supplied. |
1048 |
* |
1049 |
* NOTE/TODO: When invalidating a virtual address, it is only cleared from |
1050 |
* the quick translation array, not from the linear |
1051 |
* vph_tlb_entry[] array. Hopefully this is enough anyway. |
1052 |
*/ |
1053 |
void DYNTRANS_INVALIDATE_TC(struct cpu *cpu, uint64_t addr, int flags) |
1054 |
{ |
1055 |
int r; |
1056 |
#ifdef MODE32 |
1057 |
uint32_t |
1058 |
#else |
1059 |
uint64_t |
1060 |
#endif |
1061 |
addr_page = addr & ~(DYNTRANS_PAGESIZE - 1); |
1062 |
|
1063 |
/* fatal("invalidate(): "); */ |
1064 |
|
1065 |
/* Quick case for _one_ virtual addresses: see note above. */ |
1066 |
if (flags & INVALIDATE_VADDR) { |
1067 |
/* fatal("vaddr 0x%08x\n", (int)addr_page); */ |
1068 |
DYNTRANS_INVALIDATE_TLB_ENTRY(cpu, addr_page, flags); |
1069 |
return; |
1070 |
} |
1071 |
|
1072 |
/* Invalidate everything: */ |
1073 |
#ifdef DYNTRANS_PPC |
1074 |
if (flags & INVALIDATE_ALL && flags & INVALIDATE_VADDR_UPPER4) { |
1075 |
/* fatal("all, upper4 (PowerPC segment)\n"); */ |
1076 |
for (r=0; r<DYNTRANS_MAX_VPH_TLB_ENTRIES; r++) { |
1077 |
if (cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].valid && |
1078 |
(cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].vaddr_page |
1079 |
& 0xf0000000) == addr_page) { |
1080 |
DYNTRANS_INVALIDATE_TLB_ENTRY(cpu, cpu->cd. |
1081 |
DYNTRANS_ARCH.vph_tlb_entry[r].vaddr_page, |
1082 |
0); |
1083 |
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].valid=0; |
1084 |
} |
1085 |
} |
1086 |
return; |
1087 |
} |
1088 |
#endif |
1089 |
if (flags & INVALIDATE_ALL) { |
1090 |
/* fatal("all\n"); */ |
1091 |
for (r=0; r<DYNTRANS_MAX_VPH_TLB_ENTRIES; r++) { |
1092 |
if (cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].valid) { |
1093 |
DYNTRANS_INVALIDATE_TLB_ENTRY(cpu, cpu->cd. |
1094 |
DYNTRANS_ARCH.vph_tlb_entry[r].vaddr_page, |
1095 |
0); |
1096 |
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].valid=0; |
1097 |
} |
1098 |
} |
1099 |
return; |
1100 |
} |
1101 |
|
1102 |
/* Invalidate a physical page: */ |
1103 |
|
1104 |
if (!(flags & INVALIDATE_PADDR)) |
1105 |
fatal("HUH? Invalidate: Not vaddr, all, or paddr?\n"); |
1106 |
|
1107 |
/* fatal("addr 0x%08x\n", (int)addr_page); */ |
1108 |
|
1109 |
for (r=0; r<DYNTRANS_MAX_VPH_TLB_ENTRIES; r++) { |
1110 |
if (cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].valid && addr_page |
1111 |
== cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].paddr_page) { |
1112 |
DYNTRANS_INVALIDATE_TLB_ENTRY(cpu, |
1113 |
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].vaddr_page, |
1114 |
flags); |
1115 |
if (flags & JUST_MARK_AS_NON_WRITABLE) |
1116 |
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r] |
1117 |
.writeflag = 0; |
1118 |
else |
1119 |
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r] |
1120 |
.valid = 0; |
1121 |
} |
1122 |
} |
1123 |
} |
1124 |
#endif /* DYNTRANS_INVALIDATE_TC */ |
1125 |
|
1126 |
|
1127 |
|
1128 |
#ifdef DYNTRANS_INVALIDATE_TC_CODE |
1129 |
/* |
1130 |
* XXX_invalidate_code_translation(): |
1131 |
* |
1132 |
* Invalidate code translations for a specific physical address, a specific |
1133 |
* virtual address, or for all entries in the cache. |
1134 |
*/ |
1135 |
void DYNTRANS_INVALIDATE_TC_CODE(struct cpu *cpu, uint64_t addr, int flags) |
1136 |
{ |
1137 |
int r; |
1138 |
#ifdef MODE32 |
1139 |
uint32_t |
1140 |
#else |
1141 |
uint64_t |
1142 |
#endif |
1143 |
vaddr_page, paddr_page; |
1144 |
|
1145 |
addr &= ~(DYNTRANS_PAGESIZE-1); |
1146 |
|
1147 |
/* printf("DYNTRANS_INVALIDATE_TC_CODE addr=0x%08x flags=%i\n", |
1148 |
(int)addr, flags); */ |
1149 |
|
1150 |
if (flags & INVALIDATE_PADDR) { |
1151 |
int pagenr, table_index; |
1152 |
uint32_t physpage_ofs, *physpage_entryp; |
1153 |
struct DYNTRANS_TC_PHYSPAGE *ppp, *prev_ppp; |
1154 |
|
1155 |
pagenr = DYNTRANS_ADDR_TO_PAGENR(addr); |
1156 |
|
1157 |
#ifdef MODE32 |
1158 |
/* If this page isn't marked as having any translations, |
1159 |
then return immediately. */ |
1160 |
if (!(cpu->cd.DYNTRANS_ARCH.phystranslation[pagenr >> 5] |
1161 |
& 1 << (pagenr & 31))) |
1162 |
return; |
1163 |
/* Remove the mark: */ |
1164 |
cpu->cd.DYNTRANS_ARCH.phystranslation[pagenr >> 5] &= |
1165 |
~ (1 << (pagenr & 31)); |
1166 |
#endif |
1167 |
|
1168 |
table_index = PAGENR_TO_TABLE_INDEX(pagenr); |
1169 |
|
1170 |
physpage_entryp = &(((uint32_t *)cpu-> |
1171 |
translation_cache)[table_index]); |
1172 |
physpage_ofs = *physpage_entryp; |
1173 |
prev_ppp = ppp = NULL; |
1174 |
|
1175 |
/* Traverse the physical page chain: */ |
1176 |
while (physpage_ofs != 0) { |
1177 |
prev_ppp = ppp; |
1178 |
ppp = (struct DYNTRANS_TC_PHYSPAGE *) |
1179 |
(cpu->translation_cache + physpage_ofs); |
1180 |
/* If we found the page in the cache, |
1181 |
then we're done: */ |
1182 |
if (ppp->physaddr == addr) |
1183 |
break; |
1184 |
/* Try the next page in the chain: */ |
1185 |
physpage_ofs = ppp->next_ofs; |
1186 |
} |
1187 |
|
1188 |
if (physpage_ofs == 0) |
1189 |
ppp = NULL; |
1190 |
|
1191 |
#if 1 |
1192 |
/* |
1193 |
* "Bypass" the page, removing it from the code cache. |
1194 |
* |
1195 |
* NOTE/TODO: This gives _TERRIBLE_ performance with self- |
1196 |
* modifying code, or when a single page is used for both |
1197 |
* code and (writable) data. |
1198 |
*/ |
1199 |
if (ppp != NULL) { |
1200 |
if (prev_ppp != NULL) |
1201 |
prev_ppp->next_ofs = ppp->next_ofs; |
1202 |
else |
1203 |
*physpage_entryp = ppp->next_ofs; |
1204 |
} |
1205 |
#else |
1206 |
/* |
1207 |
* Instead of removing the page from the code cache, each |
1208 |
* entry can be set to "to_be_translated". This is slow in |
1209 |
* the general case, but in the case of self-modifying code, |
1210 |
* it might be faster since we don't risk wasting cache |
1211 |
* memory as quickly (which would force unnecessary Restarts). |
1212 |
*/ |
1213 |
if (ppp != NULL) { |
1214 |
/* TODO: Is this faster than copying an entire |
1215 |
template page? */ |
1216 |
int i; |
1217 |
for (i=0; i<DYNTRANS_IC_ENTRIES_PER_PAGE; i++) |
1218 |
ppp->ics[i].f = |
1219 |
#ifdef DYNTRANS_DUALMODE_32 |
1220 |
cpu->is_32bit? instr32(to_be_translated) : |
1221 |
#endif |
1222 |
instr(to_be_translated); |
1223 |
} |
1224 |
#endif |
1225 |
} |
1226 |
|
1227 |
/* Invalidate entries (NOTE: only code entries) in the VPH table: */ |
1228 |
for (r = DYNTRANS_MAX_VPH_TLB_ENTRIES/2; |
1229 |
r < DYNTRANS_MAX_VPH_TLB_ENTRIES; r ++) { |
1230 |
if (cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].valid) { |
1231 |
vaddr_page = cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r] |
1232 |
.vaddr_page & ~(DYNTRANS_PAGESIZE-1); |
1233 |
paddr_page = cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r] |
1234 |
.paddr_page & ~(DYNTRANS_PAGESIZE-1); |
1235 |
|
1236 |
if (flags & INVALIDATE_ALL || |
1237 |
(flags & INVALIDATE_PADDR && paddr_page == addr) || |
1238 |
(flags & INVALIDATE_VADDR && vaddr_page == addr)) { |
1239 |
#ifdef MODE32 |
1240 |
uint32_t index = |
1241 |
DYNTRANS_ADDR_TO_PAGENR(vaddr_page); |
1242 |
cpu->cd.DYNTRANS_ARCH.phys_page[index] = NULL; |
1243 |
/* Remove the mark: */ |
1244 |
index = DYNTRANS_ADDR_TO_PAGENR(paddr_page); |
1245 |
cpu->cd.DYNTRANS_ARCH.phystranslation[ |
1246 |
index >> 5] &= ~ (1 << (index & 31)); |
1247 |
#else |
1248 |
const uint32_t mask1 = (1 << DYNTRANS_L1N) - 1; |
1249 |
const uint32_t mask2 = (1 << DYNTRANS_L2N) - 1; |
1250 |
const uint32_t mask3 = (1 << DYNTRANS_L3N) - 1; |
1251 |
uint32_t x1, x2, x3; |
1252 |
struct DYNTRANS_L2_64_TABLE *l2; |
1253 |
struct DYNTRANS_L3_64_TABLE *l3; |
1254 |
|
1255 |
x1 = (vaddr_page >> (64-DYNTRANS_L1N)) & mask1; |
1256 |
x2 = (vaddr_page >> (64-DYNTRANS_L1N - |
1257 |
DYNTRANS_L2N)) & mask2; |
1258 |
x3 = (vaddr_page >> (64-DYNTRANS_L1N - |
1259 |
DYNTRANS_L2N - DYNTRANS_L3N)) & mask3; |
1260 |
l2 = cpu->cd.DYNTRANS_ARCH.l1_64[x1]; |
1261 |
l3 = l2->l3[x2]; |
1262 |
l3->phys_page[x3] = NULL; |
1263 |
#endif |
1264 |
} |
1265 |
} |
1266 |
} |
1267 |
} |
1268 |
#endif /* DYNTRANS_INVALIDATE_TC_CODE */ |
1269 |
|
1270 |
|
1271 |
|
1272 |
#ifdef DYNTRANS_UPDATE_TRANSLATION_TABLE |
1273 |
/* |
1274 |
* XXX_update_translation_table(): |
1275 |
* |
1276 |
* Update the virtual memory translation tables. |
1277 |
*/ |
1278 |
void DYNTRANS_UPDATE_TRANSLATION_TABLE(struct cpu *cpu, uint64_t vaddr_page, |
1279 |
unsigned char *host_page, int writeflag, uint64_t paddr_page) |
1280 |
{ |
1281 |
#ifndef MODE32 |
1282 |
int64_t lowest, highest = -1; |
1283 |
#endif |
1284 |
int found, r, lowest_index, start, end, useraccess = 0; |
1285 |
|
1286 |
#ifdef MODE32 |
1287 |
uint32_t index; |
1288 |
vaddr_page &= 0xffffffffULL; |
1289 |
paddr_page &= 0xffffffffULL; |
1290 |
/* fatal("update_translation_table(): v=0x%x, h=%p w=%i" |
1291 |
" p=0x%x\n", (int)vaddr_page, host_page, writeflag, |
1292 |
(int)paddr_page); */ |
1293 |
#else /* !MODE32 */ |
1294 |
const uint32_t mask1 = (1 << DYNTRANS_L1N) - 1; |
1295 |
const uint32_t mask2 = (1 << DYNTRANS_L2N) - 1; |
1296 |
const uint32_t mask3 = (1 << DYNTRANS_L3N) - 1; |
1297 |
uint32_t x1, x2, x3; |
1298 |
struct DYNTRANS_L2_64_TABLE *l2; |
1299 |
struct DYNTRANS_L3_64_TABLE *l3; |
1300 |
/* fatal("update_translation_table(): v=0x%"PRIx64", h=%p w=%i" |
1301 |
" p=0x%"PRIx64"\n", (uint64_t)vaddr_page, host_page, writeflag, |
1302 |
(uint64_t)paddr_page); */ |
1303 |
#endif |
1304 |
|
1305 |
if (writeflag & MEMORY_USER_ACCESS) { |
1306 |
writeflag &= ~MEMORY_USER_ACCESS; |
1307 |
useraccess = 1; |
1308 |
} |
1309 |
|
1310 |
start = 0; end = DYNTRANS_MAX_VPH_TLB_ENTRIES / 2; |
1311 |
#if 1 |
1312 |
/* Half of the TLB used for data, half for code: */ |
1313 |
if (writeflag & TLB_CODE) { |
1314 |
writeflag &= ~TLB_CODE; |
1315 |
start = end; end = DYNTRANS_MAX_VPH_TLB_ENTRIES; |
1316 |
} |
1317 |
#else |
1318 |
/* Data and code entries are mixed. */ |
1319 |
end = DYNTRANS_MAX_VPH_TLB_ENTRIES; |
1320 |
#endif |
1321 |
|
1322 |
/* Scan the current TLB entries: */ |
1323 |
lowest_index = start; |
1324 |
|
1325 |
#ifdef MODE32 |
1326 |
/* |
1327 |
* NOTE 1: vaddr_to_tlbindex is one more than the index, so that |
1328 |
* 0 becomes -1, which means a miss. |
1329 |
* |
1330 |
* NOTE 2: When a miss occurs, instead of scanning the entire tlb |
1331 |
* for the entry with the lowest time stamp, just choosing |
1332 |
* one at random will work as well. |
1333 |
*/ |
1334 |
found = (int)cpu->cd.DYNTRANS_ARCH.vaddr_to_tlbindex[ |
1335 |
DYNTRANS_ADDR_TO_PAGENR(vaddr_page)] - 1; |
1336 |
if (found < 0) { |
1337 |
static unsigned int x = 0; |
1338 |
lowest_index = (x % (end-start)) + start; |
1339 |
x ++; |
1340 |
} |
1341 |
#else |
1342 |
lowest = cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[0].timestamp; |
1343 |
found = -1; |
1344 |
for (r=start; r<end; r++) { |
1345 |
if (cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].timestamp < lowest) { |
1346 |
lowest = cpu->cd.DYNTRANS_ARCH. |
1347 |
vph_tlb_entry[r].timestamp; |
1348 |
lowest_index = r; |
1349 |
} |
1350 |
if (cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].timestamp > highest) |
1351 |
highest = cpu->cd.DYNTRANS_ARCH. |
1352 |
vph_tlb_entry[r].timestamp; |
1353 |
if (cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].valid && |
1354 |
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].vaddr_page == |
1355 |
vaddr_page) { |
1356 |
found = r; |
1357 |
break; |
1358 |
} |
1359 |
} |
1360 |
#endif |
1361 |
|
1362 |
if (found < 0) { |
1363 |
/* Create the new TLB entry, overwriting the oldest one: */ |
1364 |
r = lowest_index; |
1365 |
if (cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].valid) { |
1366 |
/* This one has to be invalidated first: */ |
1367 |
DYNTRANS_INVALIDATE_TLB_ENTRY(cpu, |
1368 |
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].vaddr_page, |
1369 |
0); |
1370 |
} |
1371 |
|
1372 |
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].valid = 1; |
1373 |
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].host_page = host_page; |
1374 |
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].paddr_page = paddr_page; |
1375 |
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].vaddr_page = vaddr_page; |
1376 |
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].writeflag = |
1377 |
writeflag & MEM_WRITE; |
1378 |
#ifndef MODE32 |
1379 |
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].timestamp = highest + 1; |
1380 |
#endif |
1381 |
|
1382 |
/* Add the new translation to the table: */ |
1383 |
#ifdef MODE32 |
1384 |
index = DYNTRANS_ADDR_TO_PAGENR(vaddr_page); |
1385 |
cpu->cd.DYNTRANS_ARCH.host_load[index] = host_page; |
1386 |
cpu->cd.DYNTRANS_ARCH.host_store[index] = |
1387 |
writeflag? host_page : NULL; |
1388 |
cpu->cd.DYNTRANS_ARCH.phys_addr[index] = paddr_page; |
1389 |
cpu->cd.DYNTRANS_ARCH.phys_page[index] = NULL; |
1390 |
cpu->cd.DYNTRANS_ARCH.vaddr_to_tlbindex[index] = r + 1; |
1391 |
#ifdef DYNTRANS_ARM |
1392 |
if (useraccess) |
1393 |
cpu->cd.DYNTRANS_ARCH.is_userpage[index >> 5] |
1394 |
|= 1 << (index & 31); |
1395 |
#endif |
1396 |
#else /* !MODE32 */ |
1397 |
x1 = (vaddr_page >> (64-DYNTRANS_L1N)) & mask1; |
1398 |
x2 = (vaddr_page >> (64-DYNTRANS_L1N-DYNTRANS_L2N)) & mask2; |
1399 |
x3 = (vaddr_page >> (64-DYNTRANS_L1N-DYNTRANS_L2N-DYNTRANS_L3N)) |
1400 |
& mask3; |
1401 |
l2 = cpu->cd.DYNTRANS_ARCH.l1_64[x1]; |
1402 |
if (l2 == cpu->cd.DYNTRANS_ARCH.l2_64_dummy) { |
1403 |
if (cpu->cd.DYNTRANS_ARCH.next_free_l2 != NULL) { |
1404 |
l2 = cpu->cd.DYNTRANS_ARCH.l1_64[x1] = |
1405 |
cpu->cd.DYNTRANS_ARCH.next_free_l2; |
1406 |
cpu->cd.DYNTRANS_ARCH.next_free_l2 = l2->next; |
1407 |
} else { |
1408 |
int i; |
1409 |
l2 = cpu->cd.DYNTRANS_ARCH.l1_64[x1] = |
1410 |
malloc(sizeof(struct DYNTRANS_L2_64_TABLE)); |
1411 |
for (i=0; i<(1 << DYNTRANS_L2N); i++) |
1412 |
l2->l3[i] = cpu->cd.DYNTRANS_ARCH. |
1413 |
l3_64_dummy; |
1414 |
} |
1415 |
} |
1416 |
l3 = l2->l3[x2]; |
1417 |
if (l3 == cpu->cd.DYNTRANS_ARCH.l3_64_dummy) { |
1418 |
if (cpu->cd.DYNTRANS_ARCH.next_free_l3 != NULL) { |
1419 |
l3 = l2->l3[x2] = |
1420 |
cpu->cd.DYNTRANS_ARCH.next_free_l3; |
1421 |
cpu->cd.DYNTRANS_ARCH.next_free_l3 = l3->next; |
1422 |
} else { |
1423 |
l3 = l2->l3[x2] = zeroed_alloc(sizeof( |
1424 |
struct DYNTRANS_L3_64_TABLE)); |
1425 |
} |
1426 |
l2->refcount ++; |
1427 |
} |
1428 |
l3->host_load[x3] = host_page; |
1429 |
l3->host_store[x3] = writeflag? host_page : NULL; |
1430 |
l3->phys_addr[x3] = paddr_page; |
1431 |
l3->phys_page[x3] = NULL; |
1432 |
l3->vaddr_to_tlbindex[x3] = r + 1; |
1433 |
l3->refcount ++; |
1434 |
#endif /* !MODE32 */ |
1435 |
} else { |
1436 |
/* |
1437 |
* The translation was already in the TLB. |
1438 |
* Writeflag = 0: Do nothing. |
1439 |
* Writeflag = 1: Make sure the page is writable. |
1440 |
* Writeflag = MEM_DOWNGRADE: Downgrade to readonly. |
1441 |
*/ |
1442 |
r = found; |
1443 |
#ifndef MODE32 |
1444 |
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].timestamp = highest + 1; |
1445 |
#endif |
1446 |
if (writeflag & MEM_WRITE) |
1447 |
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].writeflag = 1; |
1448 |
if (writeflag & MEM_DOWNGRADE) |
1449 |
cpu->cd.DYNTRANS_ARCH.vph_tlb_entry[r].writeflag = 0; |
1450 |
#ifdef MODE32 |
1451 |
index = DYNTRANS_ADDR_TO_PAGENR(vaddr_page); |
1452 |
cpu->cd.DYNTRANS_ARCH.phys_page[index] = NULL; |
1453 |
#ifdef DYNTRANS_ARM |
1454 |
cpu->cd.DYNTRANS_ARCH.is_userpage[index>>5] &= ~(1<<(index&31)); |
1455 |
if (useraccess) |
1456 |
cpu->cd.DYNTRANS_ARCH.is_userpage[index >> 5] |
1457 |
|= 1 << (index & 31); |
1458 |
#endif |
1459 |
if (cpu->cd.DYNTRANS_ARCH.phys_addr[index] == paddr_page) { |
1460 |
if (writeflag & MEM_WRITE) |
1461 |
cpu->cd.DYNTRANS_ARCH.host_store[index] = |
1462 |
host_page; |
1463 |
if (writeflag & MEM_DOWNGRADE) |
1464 |
cpu->cd.DYNTRANS_ARCH.host_store[index] = NULL; |
1465 |
} else { |
1466 |
/* Change the entire physical/host mapping: */ |
1467 |
cpu->cd.DYNTRANS_ARCH.host_load[index] = host_page; |
1468 |
cpu->cd.DYNTRANS_ARCH.host_store[index] = |
1469 |
writeflag? host_page : NULL; |
1470 |
cpu->cd.DYNTRANS_ARCH.phys_addr[index] = paddr_page; |
1471 |
} |
1472 |
#else /* !MODE32 */ |
1473 |
x1 = (vaddr_page >> (64-DYNTRANS_L1N)) & mask1; |
1474 |
x2 = (vaddr_page >> (64-DYNTRANS_L1N-DYNTRANS_L2N)) & mask2; |
1475 |
x3 = (vaddr_page >> (64-DYNTRANS_L1N-DYNTRANS_L2N-DYNTRANS_L3N)) |
1476 |
& mask3; |
1477 |
l2 = cpu->cd.DYNTRANS_ARCH.l1_64[x1]; |
1478 |
l3 = l2->l3[x2]; |
1479 |
if (l3->phys_addr[x3] == paddr_page) { |
1480 |
if (writeflag & MEM_WRITE) |
1481 |
l3->host_store[x3] = host_page; |
1482 |
if (writeflag & MEM_DOWNGRADE) |
1483 |
l3->host_store[x3] = NULL; |
1484 |
} else { |
1485 |
/* Change the entire physical/host mapping: */ |
1486 |
l3->host_load[x3] = host_page; |
1487 |
l3->host_store[x3] = writeflag? host_page : NULL; |
1488 |
l3->phys_addr[x3] = paddr_page; |
1489 |
} |
1490 |
#endif /* !MODE32 */ |
1491 |
} |
1492 |
} |
1493 |
#endif /* DYNTRANS_UPDATE_TRANSLATION_TABLE */ |
1494 |
|
1495 |
|
1496 |
/*****************************************************************************/ |
1497 |
|
1498 |
|
1499 |
#ifdef DYNTRANS_TO_BE_TRANSLATED_HEAD |
1500 |
/* |
1501 |
* Check for breakpoints. |
1502 |
*/ |
1503 |
if (!single_step_breakpoint) { |
1504 |
MODE_uint_t curpc = cpu->pc; |
1505 |
int i; |
1506 |
for (i=0; i<cpu->machine->n_breakpoints; i++) |
1507 |
if (curpc == (MODE_uint_t) |
1508 |
cpu->machine->breakpoint_addr[i]) { |
1509 |
if (!cpu->machine->instruction_trace) { |
1510 |
int old_quiet_mode = quiet_mode; |
1511 |
quiet_mode = 0; |
1512 |
DISASSEMBLE(cpu, ib, 1, 0); |
1513 |
quiet_mode = old_quiet_mode; |
1514 |
} |
1515 |
fatal("BREAKPOINT: pc = 0x%"PRIx64"\n(The " |
1516 |
"instruction has not yet executed.)\n", |
1517 |
(uint64_t)cpu->pc); |
1518 |
#ifdef DYNTRANS_DELAYSLOT |
1519 |
if (cpu->delay_slot != NOT_DELAYED) |
1520 |
fatal("ERROR! Breakpoint in a delay" |
1521 |
" slot! Not yet supported.\n"); |
1522 |
#endif |
1523 |
single_step_breakpoint = 1; |
1524 |
single_step = 1; |
1525 |
goto stop_running_translated; |
1526 |
} |
1527 |
} |
1528 |
#endif /* DYNTRANS_TO_BE_TRANSLATED_HEAD */ |
1529 |
|
1530 |
|
1531 |
/*****************************************************************************/ |
1532 |
|
1533 |
|
1534 |
#ifdef DYNTRANS_TO_BE_TRANSLATED_TAIL |
1535 |
/* |
1536 |
* If we end up here, then an instruction was translated. |
1537 |
* Mark the page as containing a translation. |
1538 |
* |
1539 |
* (Special case for 32-bit mode: set the corresponding bit in the |
1540 |
* phystranslation[] array.) |
1541 |
*/ |
1542 |
/* Make sure cur_physpage is in synch: */ |
1543 |
cpu->cd.DYNTRANS_ARCH.cur_physpage = (void *) |
1544 |
cpu->cd.DYNTRANS_ARCH.cur_ic_page; |
1545 |
#ifdef MODE32 |
1546 |
if (!(cpu->cd.DYNTRANS_ARCH.cur_physpage->flags & TRANSLATIONS)) { |
1547 |
uint32_t index = DYNTRANS_ADDR_TO_PAGENR((uint32_t)addr); |
1548 |
cpu->cd.DYNTRANS_ARCH.phystranslation[index >> 5] |= |
1549 |
(1 << (index & 31)); |
1550 |
} |
1551 |
#endif |
1552 |
cpu->cd.DYNTRANS_ARCH.cur_physpage->flags |= TRANSLATIONS; |
1553 |
|
1554 |
|
1555 |
/* |
1556 |
* Now it is time to check for combinations of instructions that can |
1557 |
* be converted into a single function call. |
1558 |
* |
1559 |
* Note: Single-stepping or instruction tracing doesn't work with |
1560 |
* instruction combination. For architectures with delay slots, |
1561 |
* we also ignore combinations if the delay slot is across a page |
1562 |
* boundary. |
1563 |
*/ |
1564 |
if (!single_step && !cpu->machine->instruction_trace |
1565 |
#ifdef DYNTRANS_DELAYSLOT |
1566 |
&& !in_crosspage_delayslot |
1567 |
#endif |
1568 |
) { |
1569 |
if (cpu->cd.DYNTRANS_ARCH.combination_check != NULL && |
1570 |
cpu->machine->speed_tricks) |
1571 |
cpu->cd.DYNTRANS_ARCH.combination_check(cpu, ic, |
1572 |
addr & (DYNTRANS_PAGESIZE - 1)); |
1573 |
} |
1574 |
|
1575 |
cpu->cd.DYNTRANS_ARCH.combination_check = NULL; |
1576 |
|
1577 |
/* An additional check, to catch some bugs: */ |
1578 |
if (ic->f == ( |
1579 |
#ifdef DYNTRANS_DUALMODE_32 |
1580 |
cpu->is_32bit? instr32(to_be_translated) : |
1581 |
#endif |
1582 |
instr(to_be_translated))) { |
1583 |
fatal("INTERNAL ERROR: ic->f not set!\n"); |
1584 |
goto bad; |
1585 |
} |
1586 |
if (ic->f == NULL) { |
1587 |
fatal("INTERNAL ERROR: ic->f == NULL!\n"); |
1588 |
goto bad; |
1589 |
} |
1590 |
|
1591 |
/* ... and finally execute the translated instruction: */ |
1592 |
if ((single_step_breakpoint && cpu->delay_slot == NOT_DELAYED) |
1593 |
#ifdef DYNTRANS_DELAYSLOT |
1594 |
|| in_crosspage_delayslot |
1595 |
#endif |
1596 |
) { |
1597 |
/* |
1598 |
* Special case when single-stepping: Execute the translated |
1599 |
* instruction, but then replace it with a "to be translated" |
1600 |
* directly afterwards. |
1601 |
*/ |
1602 |
single_step_breakpoint = 0; |
1603 |
#ifdef DYNTRANS_VARIABLE_INSTRUCTION_LENGTH |
1604 |
cpu->cd.DYNTRANS_ARCH.next_ic = ic + ic->arg[0]; |
1605 |
#endif |
1606 |
ic->f(cpu, ic); |
1607 |
ic->f = |
1608 |
#ifdef DYNTRANS_DUALMODE_32 |
1609 |
cpu->is_32bit? instr32(to_be_translated) : |
1610 |
#endif |
1611 |
instr(to_be_translated); |
1612 |
#ifdef DYNTRANS_VARIABLE_INSTRUCTION_LENGTH |
1613 |
ic->arg[0] = 0; |
1614 |
#endif |
1615 |
} else { |
1616 |
#ifdef DYNTRANS_VARIABLE_INSTRUCTION_LENGTH |
1617 |
cpu->cd.DYNTRANS_ARCH.next_ic = ic + ic->arg[0]; |
1618 |
|
1619 |
/* Additional check, for variable length ISAs: */ |
1620 |
if (ic->arg[0] == 0) { |
1621 |
fatal("INTERNAL ERROR: instr len = 0!\n"); |
1622 |
goto bad; |
1623 |
} |
1624 |
#endif |
1625 |
|
1626 |
/* Finally finally :-), execute the instruction: */ |
1627 |
ic->f(cpu, ic); |
1628 |
} |
1629 |
|
1630 |
return; |
1631 |
|
1632 |
|
1633 |
bad: /* |
1634 |
* Nothing was translated. (Unimplemented or illegal instruction.) |
1635 |
*/ |
1636 |
|
1637 |
quiet_mode = 0; |
1638 |
fatal("to_be_translated(): TODO: unimplemented instruction"); |
1639 |
|
1640 |
if (cpu->machine->instruction_trace) |
1641 |
#ifdef MODE32 |
1642 |
fatal(" at 0x%"PRIx32"\n", (uint32_t)cpu->pc); |
1643 |
#else |
1644 |
fatal(" at 0x%"PRIx64"\n", (uint64_t)cpu->pc); |
1645 |
#endif |
1646 |
else { |
1647 |
fatal(":\n"); |
1648 |
DISASSEMBLE(cpu, ib, 1, 0); |
1649 |
} |
1650 |
|
1651 |
cpu->running = 0; |
1652 |
cpu->dead = 1; |
1653 |
stop_running_translated: |
1654 |
debugger_n_steps_left_before_interaction = 0; |
1655 |
cpu->running_translated = 0; |
1656 |
ic = cpu->cd.DYNTRANS_ARCH.next_ic = ¬hing_call; |
1657 |
cpu->cd.DYNTRANS_ARCH.next_ic ++; |
1658 |
|
1659 |
/* Execute the "nothing" instruction: */ |
1660 |
ic->f(cpu, ic); |
1661 |
#endif /* DYNTRANS_TO_BE_TRANSLATED_TAIL */ |
1662 |
|