diff options
Diffstat (limited to 'qemu/target-alpha/mem_helper.c')
| -rw-r--r-- | qemu/target-alpha/mem_helper.c | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/qemu/target-alpha/mem_helper.c b/qemu/target-alpha/mem_helper.c deleted file mode 100644 index 7fee9a6e2..000000000 --- a/qemu/target-alpha/mem_helper.c +++ /dev/null @@ -1,160 +0,0 @@ -/* - * Helpers for loads and stores - * - * Copyright (c) 2007 Jocelyn Mayer - * - * 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 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/>. - */ - -#include "qemu/osdep.h" -#include "cpu.h" -#include "exec/helper-proto.h" -#include "exec/cpu_ldst.h" - -/* Softmmu support */ -#ifndef CONFIG_USER_ONLY - -uint64_t helper_ldl_phys(CPUAlphaState *env, uint64_t p) -{ - CPUState *cs = CPU(alpha_env_get_cpu(env)); - return (int32_t)ldl_phys(cs->as, p); -} - -uint64_t helper_ldq_phys(CPUAlphaState *env, uint64_t p) -{ - CPUState *cs = CPU(alpha_env_get_cpu(env)); - return ldq_phys(cs->as, p); -} - -uint64_t helper_ldl_l_phys(CPUAlphaState *env, uint64_t p) -{ - CPUState *cs = CPU(alpha_env_get_cpu(env)); - env->lock_addr = p; - return env->lock_value = (int32_t)ldl_phys(cs->as, p); -} - -uint64_t helper_ldq_l_phys(CPUAlphaState *env, uint64_t p) -{ - CPUState *cs = CPU(alpha_env_get_cpu(env)); - env->lock_addr = p; - return env->lock_value = ldq_phys(cs->as, p); -} - -void helper_stl_phys(CPUAlphaState *env, uint64_t p, uint64_t v) -{ - CPUState *cs = CPU(alpha_env_get_cpu(env)); - stl_phys(cs->as, p, v); -} - -void helper_stq_phys(CPUAlphaState *env, uint64_t p, uint64_t v) -{ - CPUState *cs = CPU(alpha_env_get_cpu(env)); - stq_phys(cs->as, p, v); -} - -uint64_t helper_stl_c_phys(CPUAlphaState *env, uint64_t p, uint64_t v) -{ - CPUState *cs = CPU(alpha_env_get_cpu(env)); - uint64_t ret = 0; - - if (p == env->lock_addr) { - int32_t old = ldl_phys(cs->as, p); - if (old == (int32_t)env->lock_value) { - stl_phys(cs->as, p, v); - ret = 1; - } - } - env->lock_addr = -1; - - return ret; -} - -uint64_t helper_stq_c_phys(CPUAlphaState *env, uint64_t p, uint64_t v) -{ - CPUState *cs = CPU(alpha_env_get_cpu(env)); - uint64_t ret = 0; - - if (p == env->lock_addr) { - uint64_t old = ldq_phys(cs->as, p); - if (old == env->lock_value) { - stq_phys(cs->as, p, v); - ret = 1; - } - } - env->lock_addr = -1; - - return ret; -} - -void alpha_cpu_do_unaligned_access(CPUState *cs, vaddr addr, - int is_write, int is_user, uintptr_t retaddr) -{ - AlphaCPU *cpu = ALPHA_CPU(cs); - CPUAlphaState *env = &cpu->env; - uint64_t pc; - uint32_t insn; - - if (retaddr) { - cpu_restore_state(cs, retaddr); - } - - pc = env->pc; - insn = cpu_ldl_code(env, pc); - - env->trap_arg0 = addr; - env->trap_arg1 = insn >> 26; /* opcode */ - env->trap_arg2 = (insn >> 21) & 31; /* dest regno */ - cs->exception_index = EXCP_UNALIGN; - env->error_code = 0; - cpu_loop_exit(cs); -} - -void alpha_cpu_unassigned_access(CPUState *cs, hwaddr addr, - bool is_write, bool is_exec, int unused, - unsigned size) -{ - AlphaCPU *cpu = ALPHA_CPU(cs); - CPUAlphaState *env = &cpu->env; - - env->trap_arg0 = addr; - env->trap_arg1 = is_write ? 1 : 0; - cs->exception_index = EXCP_MCHK; - env->error_code = 0; - - /* ??? We should cpu_restore_state to the faulting insn, but this hook - does not have access to the retaddr value from the original helper. - It's all moot until the QEMU PALcode grows an MCHK handler. */ - - cpu_loop_exit(cs); -} - -/* try to fill the TLB and return an exception if error. If retaddr is - NULL, it means that the function was called in C code (i.e. not - from generated code or from helper.c) */ -/* XXX: fix it to restore all registers */ -void tlb_fill(CPUState *cs, target_ulong addr, int is_write, - int mmu_idx, uintptr_t retaddr) -{ - int ret; - - ret = alpha_cpu_handle_mmu_fault(cs, addr, is_write, mmu_idx); - if (unlikely(ret != 0)) { - if (retaddr) { - cpu_restore_state(cs, retaddr); - } - /* Exception index and error code are already set */ - cpu_loop_exit(cs); - } -} -#endif /* CONFIG_USER_ONLY */ |