Merge branch 'xtensa' of git://jcmvbkbc.spb.ru/dumb/qemu-xtensa

* 'xtensa' of git://jcmvbkbc.spb.ru/dumb/qemu-xtensa:
  target-xtensa: Start QOM'ifying CPU init
  target-xtensa: QOM'ify CPU reset
  target-xtensa: QOM'ify CPU
  target-xtensa: improve unit tests debugging
  target-xtensa: Move helpers.h to helper.h

Makefile.target

@@ -102,6 +102,7 @@ endif
 libobj-$(TARGET_SPARC) += int32_helper.o
 libobj-$(TARGET_SPARC64) += int64_helper.o
 libobj-$(TARGET_UNICORE32) += cpu.o
+libobj-$(TARGET_XTENSA) += cpu.o
 libobj-$(TARGET_ALPHA) += int_helper.o fpu_helper.o sys_helper.o mem_helper.o
 
 libobj-y += disas.o

target-xtensa/cpu-qom.h

@@ -0,0 +1,80 @@
+/*
+ * QEMU Xtensa CPU
+ *
+ * Copyright (c) 2012 SUSE LINUX Products GmbH
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the Open Source and Linux Lab nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef QEMU_XTENSA_CPU_QOM_H
+#define QEMU_XTENSA_CPU_QOM_H
+
+#include "qemu/cpu.h"
+#include "cpu.h"
+
+#define TYPE_XTENSA_CPU "xtensa-cpu"
+
+#define XTENSA_CPU_CLASS(class) \
+    OBJECT_CLASS_CHECK(XtensaCPUClass, (class), TYPE_XTENSA_CPU)
+#define XTENSA_CPU(obj) \
+    OBJECT_CHECK(XtensaCPU, (obj), TYPE_XTENSA_CPU)
+#define XTENSA_CPU_GET_CLASS(obj) \
+    OBJECT_GET_CLASS(XtensaCPUClass, (obj), TYPE_XTENSA_CPU)
+
+/**
+ * XtensaCPUClass:
+ * @parent_reset: The parent class' reset handler.
+ *
+ * An Xtensa CPU model.
+ */
+typedef struct XtensaCPUClass {
+    /*< private >*/
+    CPUClass parent_class;
+    /*< public >*/
+
+    void (*parent_reset)(CPUState *cpu);
+} XtensaCPUClass;
+
+/**
+ * XtensaCPU:
+ * @env: #CPUXtensaState
+ *
+ * An Xtensa CPU.
+ */
+typedef struct XtensaCPU {
+    /*< private >*/
+    CPUState parent_obj;
+    /*< public >*/
+
+    CPUXtensaState env;
+} XtensaCPU;
+
+static inline XtensaCPU *xtensa_env_get_cpu(const CPUXtensaState *env)
+{
+    return XTENSA_CPU(container_of(env, XtensaCPU, env));
+}
+
+#define ENV_GET_CPU(e) CPU(xtensa_env_get_cpu(e))
+
+
+#endif

target-xtensa/cpu.c

@@ -0,0 +1,88 @@
+/*
+ * QEMU Xtensa CPU
+ *
+ * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab.
+ * Copyright (c) 2012 SUSE LINUX Products GmbH
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the Open Source and Linux Lab nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "cpu-qom.h"
+#include "qemu-common.h"
+
+
+/* CPUClass::reset() */
+static void xtensa_cpu_reset(CPUState *s)
+{
+    XtensaCPU *cpu = XTENSA_CPU(s);
+    XtensaCPUClass *xcc = XTENSA_CPU_GET_CLASS(cpu);
+    CPUXtensaState *env = &cpu->env;
+
+    xcc->parent_reset(s);
+
+    env->exception_taken = 0;
+    env->pc = env->config->exception_vector[EXC_RESET];
+    env->sregs[LITBASE] &= ~1;
+    env->sregs[PS] = xtensa_option_enabled(env->config,
+            XTENSA_OPTION_INTERRUPT) ? 0x1f : 0x10;
+    env->sregs[VECBASE] = env->config->vecbase;
+    env->sregs[IBREAKENABLE] = 0;
+
+    env->pending_irq_level = 0;
+    reset_mmu(env);
+}
+
+static void xtensa_cpu_initfn(Object *obj)
+{
+    XtensaCPU *cpu = XTENSA_CPU(obj);
+    CPUXtensaState *env = &cpu->env;
+
+    cpu_exec_init(env);
+}
+
+static void xtensa_cpu_class_init(ObjectClass *oc, void *data)
+{
+    CPUClass *cc = CPU_CLASS(oc);
+    XtensaCPUClass *xcc = XTENSA_CPU_CLASS(cc);
+
+    xcc->parent_reset = cc->reset;
+    cc->reset = xtensa_cpu_reset;
+}
+
+static const TypeInfo xtensa_cpu_type_info = {
+    .name = TYPE_XTENSA_CPU,
+    .parent = TYPE_CPU,
+    .instance_size = sizeof(XtensaCPU),
+    .instance_init = xtensa_cpu_initfn,
+    .abstract = false,
+    .class_size = sizeof(XtensaCPUClass),
+    .class_init = xtensa_cpu_class_init,
+};
+
+static void xtensa_cpu_register_types(void)
+{
+    type_register_static(&xtensa_cpu_type_info);
+}
+
+type_init(xtensa_cpu_register_types)

target-xtensa/cpu.h

@@ -375,6 +375,7 @@ void xtensa_tlb_set_entry(CPUXtensaState *env, bool dtlb,
 int xtensa_get_physical_addr(CPUXtensaState *env,
         uint32_t vaddr, int is_write, int mmu_idx,
         uint32_t *paddr, uint32_t *page_size, unsigned *access);
+void reset_mmu(CPUXtensaState *env);
 void dump_mmu(FILE *f, fprintf_function cpu_fprintf, CPUXtensaState *env);
 void debug_exception_env(CPUXtensaState *new_env, uint32_t cause);
 
@@ -470,6 +471,7 @@ static inline void cpu_get_tb_cpu_state(CPUXtensaState *env, target_ulong *pc,
 }
 
 #include "cpu-all.h"
+#include "cpu-qom.h"
 #include "exec-all.h"
 
 static inline int cpu_has_work(CPUXtensaState *env)

target-xtensa/helper.c

@@ -33,20 +33,9 @@
 #include "hw/loader.h"
 #endif
 
-static void reset_mmu(CPUXtensaState *env);
-
 void cpu_state_reset(CPUXtensaState *env)
 {
-    env->exception_taken = 0;
-    env->pc = env->config->exception_vector[EXC_RESET];
-    env->sregs[LITBASE] &= ~1;
-    env->sregs[PS] = xtensa_option_enabled(env->config,
-            XTENSA_OPTION_INTERRUPT) ? 0x1f : 0x10;
-    env->sregs[VECBASE] = env->config->vecbase;
-    env->sregs[IBREAKENABLE] = 0;
-
-    env->pending_irq_level = 0;
-    reset_mmu(env);
+    cpu_reset(ENV_GET_CPU(env));
 }
 
 static struct XtensaConfigList *xtensa_cores;
@@ -95,6 +84,7 @@ CPUXtensaState *cpu_xtensa_init(const char *cpu_model)
 {
     static int tcg_inited;
     static int debug_handler_inited;
+    XtensaCPU *cpu;
     CPUXtensaState *env;
     const XtensaConfig *config = NULL;
     XtensaConfigList *core = xtensa_cores;
@@ -109,9 +99,9 @@ CPUXtensaState *cpu_xtensa_init(const char *cpu_model)
         return NULL;
     }
 
-    env = g_malloc0(sizeof(*env));
+    cpu = XTENSA_CPU(object_new(TYPE_XTENSA_CPU));
+    env = &cpu->env;
     env->config = config;
-    cpu_exec_init(env);
 
     if (!tcg_inited) {
         tcg_inited = 1;
@@ -334,7 +324,7 @@ static void reset_tlb_region_way0(CPUXtensaState *env,
     }
 }
 
-static void reset_mmu(CPUXtensaState *env)
+void reset_mmu(CPUXtensaState *env)
 {
     if (xtensa_option_enabled(env->config, XTENSA_OPTION_MMU)) {
         env->sregs[RASID] = 0x04030201;

target-xtensa/op_helper.c

@@ -27,7 +27,7 @@
 
 #include "cpu.h"
 #include "dyngen-exec.h"
-#include "helpers.h"
+#include "helper.h"
 #include "host-utils.h"
 
 static void do_unaligned_access(target_ulong addr, int is_write, int is_user,

target-xtensa/translate.c

@@ -37,9 +37,9 @@
 #include "qemu-log.h"
 #include "sysemu.h"
 
-#include "helpers.h"
+#include "helper.h"
 #define GEN_HELPER 1
-#include "helpers.h"
+#include "helper.h"
 
 typedef struct DisasContext {
     const XtensaConfig *config;
@@ -183,7 +183,7 @@ void xtensa_translate_init(void)
         }
     }
 #define GEN_HELPER 2
-#include "helpers.h"
+#include "helper.h"
 }
 
 static inline bool option_bits_enabled(DisasContext *dc, uint64_t opt)

tests/tcg/xtensa/Makefile

@@ -72,5 +72,8 @@ run-test_fail.tst: test_fail.tst
 debug-%.tst: %.tst
 	$(SIM) $(SIMDEBUG) $(SIMFLAGS) ./$<
 
+host-debug-%.tst: %.tst
+	gdb --args $(SIM) $(SIMFLAGS) ./$<
+
 clean:
 	$(RM) -fr $(TESTCASES) $(CRT)

tests/tcg/xtensa/macros.inc

@@ -29,7 +29,24 @@ main:
     exit
 .endm
 
+.macro print text
+.data
+97: .ascii "\text\n"
+98:
+    .align 4
+.text
+    movi    a2, 4
+    movi    a3, 2
+    movi    a4, 97b
+    movi    a5, 98b
+    sub     a5, a5, a4
+    simcall
+.endm
+
 .macro test name
+    //print test_\name
+test_\name:
+.global test_\name
 .endm
 
 .macro test_end

xtensa-semi.c

@@ -31,7 +31,7 @@
 #include <stddef.h>
 #include "cpu.h"
 #include "dyngen-exec.h"
-#include "helpers.h"
+#include "helper.h"
 #include "qemu-log.h"
 
 enum {