Sparc: split helper.c

Move CPU init to cpu_init.c and interrupt handling to int32_helper.c
for Sparc32 and int64_helper.c for Sparc64.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

1 files changed, 159 insertions, 0 deletions

diff --git a/target-sparc/int64_helper.c b/target-sparc/int64_helper.c
new file mode 100644
index 0000000000..c21dc9c5be
--- /dev/null
+++ b/target-sparc/int64_helper.c
@@ -0,0 +1,159 @@
+/*
+ * 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 "cpu.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 do_interrupt(CPUState *env)
+{
+    int intno = env->exception_index;
+    trap_state *tsptr;
+
+#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) pc=%016" PRIx64 " npc=%016" PRIx64
+                " SP=%016" PRIx64 "\n",
+                count, name, intno,
+                env->pc,
+                env->npc, env->regwptr[6]);
+        log_cpu_state(env, 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(env, "Trap 0x%04x while trap level (%d) >= MAXTL (%d),"
+                  " Error state", env->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->tbr &= ~0x7fffULL;
+    env->tbr |= ((env->tl > 1) ? 1 << 14 : 0) | (intno << 5);
+    env->pc = env->tbr;
+    env->npc = env->pc + 4;
+    env->exception_index = -1;
+}