diff options
Diffstat (limited to 'qemu/target-ppc/helper_regs.h')
-rw-r--r-- | qemu/target-ppc/helper_regs.h | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/qemu/target-ppc/helper_regs.h b/qemu/target-ppc/helper_regs.h deleted file mode 100644 index 271fddf17..000000000 --- a/qemu/target-ppc/helper_regs.h +++ /dev/null @@ -1,114 +0,0 @@ -/* - * PowerPC emulation special registers manipulation helpers for qemu. - * - * Copyright (c) 2003-2007 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/>. - */ - -#if !defined(__HELPER_REGS_H__) -#define __HELPER_REGS_H__ - -/* Swap temporary saved registers with GPRs */ -static inline void hreg_swap_gpr_tgpr(CPUPPCState *env) -{ - target_ulong tmp; - - tmp = env->gpr[0]; - env->gpr[0] = env->tgpr[0]; - env->tgpr[0] = tmp; - tmp = env->gpr[1]; - env->gpr[1] = env->tgpr[1]; - env->tgpr[1] = tmp; - tmp = env->gpr[2]; - env->gpr[2] = env->tgpr[2]; - env->tgpr[2] = tmp; - tmp = env->gpr[3]; - env->gpr[3] = env->tgpr[3]; - env->tgpr[3] = tmp; -} - -static inline void hreg_compute_mem_idx(CPUPPCState *env) -{ - /* Precompute MMU index */ - if (msr_pr == 0 && msr_hv != 0) { - env->mmu_idx = 2; - } else { - env->mmu_idx = 1 - msr_pr; - } -} - -static inline void hreg_compute_hflags(CPUPPCState *env) -{ - target_ulong hflags_mask; - - /* We 'forget' FE0 & FE1: we'll never generate imprecise exceptions */ - hflags_mask = (1 << MSR_VR) | (1 << MSR_AP) | (1 << MSR_SA) | - (1 << MSR_PR) | (1 << MSR_FP) | (1 << MSR_SE) | (1 << MSR_BE) | - (1 << MSR_LE) | (1 << MSR_VSX); - hflags_mask |= (1ULL << MSR_CM) | (1ULL << MSR_SF) | MSR_HVB; - hreg_compute_mem_idx(env); - env->hflags = env->msr & hflags_mask; - /* Merge with hflags coming from other registers */ - env->hflags |= env->hflags_nmsr; -} - -static inline int hreg_store_msr(CPUPPCState *env, target_ulong value, - int alter_hv) -{ - int excp; -#if !defined(CONFIG_USER_ONLY) - CPUState *cs = CPU(ppc_env_get_cpu(env)); -#endif - - excp = 0; - value &= env->msr_mask; -#if !defined(CONFIG_USER_ONLY) - if (!alter_hv) { - /* mtmsr cannot alter the hypervisor state */ - value &= ~MSR_HVB; - value |= env->msr & MSR_HVB; - } - if (((value >> MSR_IR) & 1) != msr_ir || - ((value >> MSR_DR) & 1) != msr_dr) { - /* Flush all tlb when changing translation mode */ - tlb_flush(cs, 1); - excp = POWERPC_EXCP_NONE; - cs->interrupt_request |= CPU_INTERRUPT_EXITTB; - } - if (unlikely((env->flags & POWERPC_FLAG_TGPR) && - ((value ^ env->msr) & (1 << MSR_TGPR)))) { - /* Swap temporary saved registers with GPRs */ - hreg_swap_gpr_tgpr(env); - } - if (unlikely((value >> MSR_EP) & 1) != msr_ep) { - /* Change the exception prefix on PowerPC 601 */ - env->excp_prefix = ((value >> MSR_EP) & 1) * 0xFFF00000; - } -#endif - env->msr = value; - hreg_compute_hflags(env); -#if !defined(CONFIG_USER_ONLY) - if (unlikely(msr_pow == 1)) { - if (!env->pending_interrupts && (*env->check_pow)(env)) { - cs->halted = 1; - excp = EXCP_HALTED; - } - } -#endif - - return excp; -} - -#endif /* !defined(__HELPER_REGS_H__) */ |