diff options
Diffstat (limited to 'qemu/target-tilegx/cpu.c')
| -rw-r--r-- | qemu/target-tilegx/cpu.c | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/qemu/target-tilegx/cpu.c b/qemu/target-tilegx/cpu.c deleted file mode 100644 index d2d091203..000000000 --- a/qemu/target-tilegx/cpu.c +++ /dev/null @@ -1,187 +0,0 @@ -/* - * QEMU TILE-Gx CPU - * - * Copyright (c) 2015 Chen Gang - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, see - * <http://www.gnu.org/licenses/lgpl-2.1.html> - */ - -#include "qemu/osdep.h" -#include "qapi/error.h" -#include "cpu.h" -#include "qemu-common.h" -#include "hw/qdev-properties.h" -#include "migration/vmstate.h" -#include "linux-user/syscall_defs.h" - -static void tilegx_cpu_dump_state(CPUState *cs, FILE *f, - fprintf_function cpu_fprintf, int flags) -{ - static const char * const reg_names[TILEGX_R_COUNT] = { - "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", - "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", - "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", - "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", - "r32", "r33", "r34", "r35", "r36", "r37", "r38", "r39", - "r40", "r41", "r42", "r43", "r44", "r45", "r46", "r47", - "r48", "r49", "r50", "r51", "bp", "tp", "sp", "lr" - }; - - TileGXCPU *cpu = TILEGX_CPU(cs); - CPUTLGState *env = &cpu->env; - int i; - - for (i = 0; i < TILEGX_R_COUNT; i++) { - cpu_fprintf(f, "%-4s" TARGET_FMT_lx "%s", - reg_names[i], env->regs[i], - (i % 4) == 3 ? "\n" : " "); - } - cpu_fprintf(f, "PC " TARGET_FMT_lx " CEX " TARGET_FMT_lx "\n\n", - env->pc, env->spregs[TILEGX_SPR_CMPEXCH]); -} - -TileGXCPU *cpu_tilegx_init(const char *cpu_model) -{ - TileGXCPU *cpu; - - cpu = TILEGX_CPU(object_new(TYPE_TILEGX_CPU)); - - object_property_set_bool(OBJECT(cpu), true, "realized", NULL); - - return cpu; -} - -static void tilegx_cpu_set_pc(CPUState *cs, vaddr value) -{ - TileGXCPU *cpu = TILEGX_CPU(cs); - - cpu->env.pc = value; -} - -static bool tilegx_cpu_has_work(CPUState *cs) -{ - return true; -} - -static void tilegx_cpu_reset(CPUState *s) -{ - TileGXCPU *cpu = TILEGX_CPU(s); - TileGXCPUClass *tcc = TILEGX_CPU_GET_CLASS(cpu); - CPUTLGState *env = &cpu->env; - - tcc->parent_reset(s); - - memset(env, 0, sizeof(CPUTLGState)); - tlb_flush(s, 1); -} - -static void tilegx_cpu_realizefn(DeviceState *dev, Error **errp) -{ - CPUState *cs = CPU(dev); - TileGXCPUClass *tcc = TILEGX_CPU_GET_CLASS(dev); - - cpu_reset(cs); - qemu_init_vcpu(cs); - - tcc->parent_realize(dev, errp); -} - -static void tilegx_cpu_initfn(Object *obj) -{ - CPUState *cs = CPU(obj); - TileGXCPU *cpu = TILEGX_CPU(obj); - CPUTLGState *env = &cpu->env; - static bool tcg_initialized; - - cs->env_ptr = env; - cpu_exec_init(cs, &error_abort); - - if (tcg_enabled() && !tcg_initialized) { - tcg_initialized = true; - tilegx_tcg_init(); - } -} - -static void tilegx_cpu_do_interrupt(CPUState *cs) -{ - cs->exception_index = -1; -} - -static int tilegx_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int rw, - int mmu_idx) -{ - TileGXCPU *cpu = TILEGX_CPU(cs); - - /* The sigcode field will be filled in by do_signal in main.c. */ - cs->exception_index = TILEGX_EXCP_SIGNAL; - cpu->env.excaddr = address; - cpu->env.signo = TARGET_SIGSEGV; - cpu->env.sigcode = 0; - - return 1; -} - -static bool tilegx_cpu_exec_interrupt(CPUState *cs, int interrupt_request) -{ - if (interrupt_request & CPU_INTERRUPT_HARD) { - tilegx_cpu_do_interrupt(cs); - return true; - } - return false; -} - -static void tilegx_cpu_class_init(ObjectClass *oc, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(oc); - CPUClass *cc = CPU_CLASS(oc); - TileGXCPUClass *tcc = TILEGX_CPU_CLASS(oc); - - tcc->parent_realize = dc->realize; - dc->realize = tilegx_cpu_realizefn; - - tcc->parent_reset = cc->reset; - cc->reset = tilegx_cpu_reset; - - cc->has_work = tilegx_cpu_has_work; - cc->do_interrupt = tilegx_cpu_do_interrupt; - cc->cpu_exec_interrupt = tilegx_cpu_exec_interrupt; - cc->dump_state = tilegx_cpu_dump_state; - cc->set_pc = tilegx_cpu_set_pc; - cc->handle_mmu_fault = tilegx_cpu_handle_mmu_fault; - cc->gdb_num_core_regs = 0; - - /* - * Reason: tilegx_cpu_initfn() calls cpu_exec_init(), which saves - * the object in cpus -> dangling pointer after final - * object_unref(). - */ - dc->cannot_destroy_with_object_finalize_yet = true; -} - -static const TypeInfo tilegx_cpu_type_info = { - .name = TYPE_TILEGX_CPU, - .parent = TYPE_CPU, - .instance_size = sizeof(TileGXCPU), - .instance_init = tilegx_cpu_initfn, - .class_size = sizeof(TileGXCPUClass), - .class_init = tilegx_cpu_class_init, -}; - -static void tilegx_cpu_register_types(void) -{ - type_register_static(&tilegx_cpu_type_info); -} - -type_init(tilegx_cpu_register_types) |