diff options
Diffstat (limited to 'qemu/target-sparc/int64_helper.c')
| -rw-r--r-- | qemu/target-sparc/int64_helper.c | 205 |
1 files changed, 0 insertions, 205 deletions
diff --git a/qemu/target-sparc/int64_helper.c b/qemu/target-sparc/int64_helper.c deleted file mode 100644 index 29360fa5f..000000000 --- a/qemu/target-sparc/int64_helper.c +++ /dev/null @@ -1,205 +0,0 @@ -/* - * Sparc64 interrupt helpers - * - * Copyright (c) 2003-2005 Fabrice Bellard - * - * 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/log.h" -#include "trace.h" - -#define DEBUG_PCALL - -#ifdef DEBUG_PCALL -static const char * const excp_names[0x80] = { - [TT_TFAULT] = "Instruction Access Fault", - [TT_TMISS] = "Instruction Access MMU Miss", - [TT_CODE_ACCESS] = "Instruction Access Error", - [TT_ILL_INSN] = "Illegal Instruction", - [TT_PRIV_INSN] = "Privileged Instruction", - [TT_NFPU_INSN] = "FPU Disabled", - [TT_FP_EXCP] = "FPU Exception", - [TT_TOVF] = "Tag Overflow", - [TT_CLRWIN] = "Clean Windows", - [TT_DIV_ZERO] = "Division By Zero", - [TT_DFAULT] = "Data Access Fault", - [TT_DMISS] = "Data Access MMU Miss", - [TT_DATA_ACCESS] = "Data Access Error", - [TT_DPROT] = "Data Protection Error", - [TT_UNALIGNED] = "Unaligned Memory Access", - [TT_PRIV_ACT] = "Privileged Action", - [TT_EXTINT | 0x1] = "External Interrupt 1", - [TT_EXTINT | 0x2] = "External Interrupt 2", - [TT_EXTINT | 0x3] = "External Interrupt 3", - [TT_EXTINT | 0x4] = "External Interrupt 4", - [TT_EXTINT | 0x5] = "External Interrupt 5", - [TT_EXTINT | 0x6] = "External Interrupt 6", - [TT_EXTINT | 0x7] = "External Interrupt 7", - [TT_EXTINT | 0x8] = "External Interrupt 8", - [TT_EXTINT | 0x9] = "External Interrupt 9", - [TT_EXTINT | 0xa] = "External Interrupt 10", - [TT_EXTINT | 0xb] = "External Interrupt 11", - [TT_EXTINT | 0xc] = "External Interrupt 12", - [TT_EXTINT | 0xd] = "External Interrupt 13", - [TT_EXTINT | 0xe] = "External Interrupt 14", - [TT_EXTINT | 0xf] = "External Interrupt 15", -}; -#endif - -void sparc_cpu_do_interrupt(CPUState *cs) -{ - SPARCCPU *cpu = SPARC_CPU(cs); - CPUSPARCState *env = &cpu->env; - int intno = cs->exception_index; - trap_state *tsptr; - - /* Compute PSR before exposing state. */ - if (env->cc_op != CC_OP_FLAGS) { - cpu_get_psr(env); - } - -#ifdef DEBUG_PCALL - if (qemu_loglevel_mask(CPU_LOG_INT)) { - static int count; - const char *name; - - if (intno < 0 || intno >= 0x180) { - name = "Unknown"; - } else if (intno >= 0x100) { - name = "Trap Instruction"; - } else if (intno >= 0xc0) { - name = "Window Fill"; - } else if (intno >= 0x80) { - name = "Window Spill"; - } else { - name = excp_names[intno]; - if (!name) { - name = "Unknown"; - } - } - - qemu_log("%6d: %s (v=%04x)\n", count, name, intno); - log_cpu_state(cs, 0); -#if 0 - { - int i; - uint8_t *ptr; - - qemu_log(" code="); - ptr = (uint8_t *)env->pc; - for (i = 0; i < 16; i++) { - qemu_log(" %02x", ldub(ptr + i)); - } - qemu_log("\n"); - } -#endif - count++; - } -#endif -#if !defined(CONFIG_USER_ONLY) - if (env->tl >= env->maxtl) { - cpu_abort(cs, "Trap 0x%04x while trap level (%d) >= MAXTL (%d)," - " Error state", cs->exception_index, env->tl, env->maxtl); - return; - } -#endif - if (env->tl < env->maxtl - 1) { - env->tl++; - } else { - env->pstate |= PS_RED; - if (env->tl < env->maxtl) { - env->tl++; - } - } - tsptr = cpu_tsptr(env); - - tsptr->tstate = (cpu_get_ccr(env) << 32) | - ((env->asi & 0xff) << 24) | ((env->pstate & 0xf3f) << 8) | - cpu_get_cwp64(env); - tsptr->tpc = env->pc; - tsptr->tnpc = env->npc; - tsptr->tt = intno; - - switch (intno) { - case TT_IVEC: - cpu_change_pstate(env, PS_PEF | PS_PRIV | PS_IG); - break; - case TT_TFAULT: - case TT_DFAULT: - case TT_TMISS ... TT_TMISS + 3: - case TT_DMISS ... TT_DMISS + 3: - case TT_DPROT ... TT_DPROT + 3: - cpu_change_pstate(env, PS_PEF | PS_PRIV | PS_MG); - break; - default: - cpu_change_pstate(env, PS_PEF | PS_PRIV | PS_AG); - break; - } - - if (intno == TT_CLRWIN) { - cpu_set_cwp(env, cpu_cwp_dec(env, env->cwp - 1)); - } else if ((intno & 0x1c0) == TT_SPILL) { - cpu_set_cwp(env, cpu_cwp_dec(env, env->cwp - env->cansave - 2)); - } else if ((intno & 0x1c0) == TT_FILL) { - cpu_set_cwp(env, cpu_cwp_inc(env, env->cwp + 1)); - } - env->pc = env->tbr & ~0x7fffULL; - env->pc |= ((env->tl > 1) ? 1 << 14 : 0) | (intno << 5); - env->npc = env->pc + 4; - cs->exception_index = -1; -} - -trap_state *cpu_tsptr(CPUSPARCState* env) -{ - return &env->ts[env->tl & MAXTL_MASK]; -} - -static bool do_modify_softint(CPUSPARCState *env, uint32_t value) -{ - if (env->softint != value) { - env->softint = value; -#if !defined(CONFIG_USER_ONLY) - if (cpu_interrupts_enabled(env)) { - cpu_check_irqs(env); - } -#endif - return true; - } - return false; -} - -void helper_set_softint(CPUSPARCState *env, uint64_t value) -{ - if (do_modify_softint(env, env->softint | (uint32_t)value)) { - trace_int_helper_set_softint(env->softint); - } -} - -void helper_clear_softint(CPUSPARCState *env, uint64_t value) -{ - if (do_modify_softint(env, env->softint & (uint32_t)~value)) { - trace_int_helper_clear_softint(env->softint); - } -} - -void helper_write_softint(CPUSPARCState *env, uint64_t value) -{ - if (do_modify_softint(env, (uint32_t)value)) { - trace_int_helper_write_softint(env->softint); - } -} |