diff options
Diffstat (limited to 'target-ppc/misc_helper.c')
-rw-r--r-- | target-ppc/misc_helper.c | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/target-ppc/misc_helper.c b/target-ppc/misc_helper.c deleted file mode 100644 index 1e6e705a4e..0000000000 --- a/target-ppc/misc_helper.c +++ /dev/null @@ -1,210 +0,0 @@ -/* - * Miscellaneous PowerPC emulation 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/>. - */ -#include "qemu/osdep.h" -#include "cpu.h" -#include "exec/exec-all.h" -#include "exec/helper-proto.h" - -#include "helper_regs.h" - -/*****************************************************************************/ -/* SPR accesses */ -void helper_load_dump_spr(CPUPPCState *env, uint32_t sprn) -{ - qemu_log("Read SPR %d %03x => " TARGET_FMT_lx "\n", sprn, sprn, - env->spr[sprn]); -} - -void helper_store_dump_spr(CPUPPCState *env, uint32_t sprn) -{ - qemu_log("Write SPR %d %03x <= " TARGET_FMT_lx "\n", sprn, sprn, - env->spr[sprn]); -} - -#ifdef TARGET_PPC64 -static void raise_fu_exception(CPUPPCState *env, uint32_t bit, - uint32_t sprn, uint32_t cause, - uintptr_t raddr) -{ - qemu_log("Facility SPR %d is unavailable (SPR FSCR:%d)\n", sprn, bit); - - env->spr[SPR_FSCR] &= ~((target_ulong)FSCR_IC_MASK << FSCR_IC_POS); - cause &= FSCR_IC_MASK; - env->spr[SPR_FSCR] |= (target_ulong)cause << FSCR_IC_POS; - - raise_exception_err_ra(env, POWERPC_EXCP_FU, 0, raddr); -} -#endif - -void helper_fscr_facility_check(CPUPPCState *env, uint32_t bit, - uint32_t sprn, uint32_t cause) -{ -#ifdef TARGET_PPC64 - if (env->spr[SPR_FSCR] & (1ULL << bit)) { - /* Facility is enabled, continue */ - return; - } - raise_fu_exception(env, bit, sprn, cause, GETPC()); -#endif -} - -void helper_msr_facility_check(CPUPPCState *env, uint32_t bit, - uint32_t sprn, uint32_t cause) -{ -#ifdef TARGET_PPC64 - if (env->msr & (1ULL << bit)) { - /* Facility is enabled, continue */ - return; - } - raise_fu_exception(env, bit, sprn, cause, GETPC()); -#endif -} - -#if !defined(CONFIG_USER_ONLY) - -void helper_store_sdr1(CPUPPCState *env, target_ulong val) -{ - PowerPCCPU *cpu = ppc_env_get_cpu(env); - - if (!env->external_htab) { - if (env->spr[SPR_SDR1] != val) { - ppc_store_sdr1(env, val); - tlb_flush(CPU(cpu), 1); - } - } -} - -void helper_store_hid0_601(CPUPPCState *env, target_ulong val) -{ - target_ulong hid0; - - hid0 = env->spr[SPR_HID0]; - if ((val ^ hid0) & 0x00000008) { - /* Change current endianness */ - env->hflags &= ~(1 << MSR_LE); - env->hflags_nmsr &= ~(1 << MSR_LE); - env->hflags_nmsr |= (1 << MSR_LE) & (((val >> 3) & 1) << MSR_LE); - env->hflags |= env->hflags_nmsr; - qemu_log("%s: set endianness to %c => " TARGET_FMT_lx "\n", __func__, - val & 0x8 ? 'l' : 'b', env->hflags); - } - env->spr[SPR_HID0] = (uint32_t)val; -} - -void helper_store_403_pbr(CPUPPCState *env, uint32_t num, target_ulong value) -{ - PowerPCCPU *cpu = ppc_env_get_cpu(env); - - if (likely(env->pb[num] != value)) { - env->pb[num] = value; - /* Should be optimized */ - tlb_flush(CPU(cpu), 1); - } -} - -void helper_store_40x_dbcr0(CPUPPCState *env, target_ulong val) -{ - store_40x_dbcr0(env, val); -} - -void helper_store_40x_sler(CPUPPCState *env, target_ulong val) -{ - store_40x_sler(env, val); -} -#endif -/*****************************************************************************/ -/* PowerPC 601 specific instructions (POWER bridge) */ - -target_ulong helper_clcs(CPUPPCState *env, uint32_t arg) -{ - switch (arg) { - case 0x0CUL: - /* Instruction cache line size */ - return env->icache_line_size; - break; - case 0x0DUL: - /* Data cache line size */ - return env->dcache_line_size; - break; - case 0x0EUL: - /* Minimum cache line size */ - return (env->icache_line_size < env->dcache_line_size) ? - env->icache_line_size : env->dcache_line_size; - break; - case 0x0FUL: - /* Maximum cache line size */ - return (env->icache_line_size > env->dcache_line_size) ? - env->icache_line_size : env->dcache_line_size; - break; - default: - /* Undefined */ - return 0; - break; - } -} - -/*****************************************************************************/ -/* Special registers manipulation */ - -/* GDBstub can read and write MSR... */ -void ppc_store_msr(CPUPPCState *env, target_ulong value) -{ - hreg_store_msr(env, value, 0); -} - -/* This code is lifted from MacOnLinux. It is called whenever - * THRM1,2 or 3 is read an fixes up the values in such a way - * that will make MacOS not hang. These registers exist on some - * 75x and 74xx processors. - */ -void helper_fixup_thrm(CPUPPCState *env) -{ - target_ulong v, t; - int i; - -#define THRM1_TIN (1 << 31) -#define THRM1_TIV (1 << 30) -#define THRM1_THRES(x) (((x) & 0x7f) << 23) -#define THRM1_TID (1 << 2) -#define THRM1_TIE (1 << 1) -#define THRM1_V (1 << 0) -#define THRM3_E (1 << 0) - - if (!(env->spr[SPR_THRM3] & THRM3_E)) { - return; - } - - /* Note: Thermal interrupts are unimplemented */ - for (i = SPR_THRM1; i <= SPR_THRM2; i++) { - v = env->spr[i]; - if (!(v & THRM1_V)) { - continue; - } - v |= THRM1_TIV; - v &= ~THRM1_TIN; - t = v & THRM1_THRES(127); - if ((v & THRM1_TID) && t < THRM1_THRES(24)) { - v |= THRM1_TIN; - } - if (!(v & THRM1_TID) && t > THRM1_THRES(24)) { - v |= THRM1_TIN; - } - env->spr[i] = v; - } -} |