* Copyright (c) 2009 Edgar E. Iglesias
* Copyright (c) 2009-2012 PetaLogix Qld Pty Ltd.
* Copyright (c) 2012 SUSE LINUX Products GmbH
+ * Copyright (c) 2009 Edgar E. Iglesias, Axis Communications AB.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* <http://www.gnu.org/licenses/lgpl-2.1.html>
*/
+#include "qemu/osdep.h"
#include "cpu.h"
#include "qemu-common.h"
#include "hw/qdev-properties.h"
#include "migration/vmstate.h"
+static const struct {
+ const char *name;
+ uint8_t version_id;
+} mb_cpu_lookup[] = {
+ /* These key value are as per MBV field in PVR0 */
+ {"5.00.a", 0x01},
+ {"5.00.b", 0x02},
+ {"5.00.c", 0x03},
+ {"6.00.a", 0x04},
+ {"6.00.b", 0x06},
+ {"7.00.a", 0x05},
+ {"7.00.b", 0x07},
+ {"7.10.a", 0x08},
+ {"7.10.b", 0x09},
+ {"7.10.c", 0x0a},
+ {"7.10.d", 0x0b},
+ {"7.20.a", 0x0c},
+ {"7.20.b", 0x0d},
+ {"7.20.c", 0x0e},
+ {"7.20.d", 0x0f},
+ {"7.30.a", 0x10},
+ {"7.30.b", 0x11},
+ {"8.00.a", 0x12},
+ {"8.00.b", 0x13},
+ {"8.10.a", 0x14},
+ {"8.20.a", 0x15},
+ {"8.20.b", 0x16},
+ {"8.30.a", 0x17},
+ {"8.40.a", 0x18},
+ {"8.40.b", 0x19},
+ {"8.50.a", 0x1A},
+ {"9.0", 0x1B},
+ {"9.1", 0x1D},
+ {"9.2", 0x1F},
+ {"9.3", 0x20},
+ {NULL, 0},
+};
static void mb_cpu_set_pc(CPUState *cs, vaddr value)
{
cpu->env.sregs[SR_PC] = value;
}
+static bool mb_cpu_has_work(CPUState *cs)
+{
+ return cs->interrupt_request & (CPU_INTERRUPT_HARD | CPU_INTERRUPT_NMI);
+}
+
+#ifndef CONFIG_USER_ONLY
+static void microblaze_cpu_set_irq(void *opaque, int irq, int level)
+{
+ MicroBlazeCPU *cpu = opaque;
+ CPUState *cs = CPU(cpu);
+ int type = irq ? CPU_INTERRUPT_NMI : CPU_INTERRUPT_HARD;
+
+ if (level) {
+ cpu_interrupt(cs, type);
+ } else {
+ cpu_reset_interrupt(cs, type);
+ }
+}
+#endif
+
/* CPUClass::reset() */
static void mb_cpu_reset(CPUState *s)
{
mcc->parent_reset(s);
- memset(env, 0, offsetof(CPUMBState, breakpoints));
+ memset(env, 0, offsetof(CPUMBState, pvr));
env->res_addr = RES_ADDR_NONE;
- tlb_flush(env, 1);
+ tlb_flush(s, 1);
/* Disable stack protector. */
env->shr = ~0;
- env->pvr.regs[0] = PVR0_PVR_FULL_MASK \
- | PVR0_USE_BARREL_MASK \
+ env->sregs[SR_PC] = cpu->cfg.base_vectors;
+
+#if defined(CONFIG_USER_ONLY)
+ /* start in user mode with interrupts enabled. */
+ env->sregs[SR_MSR] = MSR_EE | MSR_IE | MSR_VM | MSR_UM;
+#else
+ env->sregs[SR_MSR] = 0;
+ mmu_init(&env->mmu);
+ env->mmu.c_mmu = 3;
+ env->mmu.c_mmu_tlb_access = 3;
+ env->mmu.c_mmu_zones = 16;
+#endif
+}
+
+static void mb_disas_set_info(CPUState *cpu, disassemble_info *info)
+{
+ info->mach = bfd_arch_microblaze;
+ info->print_insn = print_insn_microblaze;
+}
+
+static void mb_cpu_realizefn(DeviceState *dev, Error **errp)
+{
+ CPUState *cs = CPU(dev);
+ MicroBlazeCPUClass *mcc = MICROBLAZE_CPU_GET_CLASS(dev);
+ MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs);
+ CPUMBState *env = &cpu->env;
+ uint8_t version_code = 0;
+ int i = 0;
+
+ qemu_init_vcpu(cs);
+
+ env->pvr.regs[0] = PVR0_USE_BARREL_MASK \
| PVR0_USE_DIV_MASK \
| PVR0_USE_HW_MUL_MASK \
| PVR0_USE_EXC_MASK \
| PVR0_USE_ICACHE_MASK \
| PVR0_USE_DCACHE_MASK \
- | PVR0_USE_MMU \
| (0xb << 8);
env->pvr.regs[2] = PVR2_D_OPB_MASK \
| PVR2_D_LMB_MASK \
| PVR2_USE_DIV_MASK \
| PVR2_USE_HW_MUL_MASK \
| PVR2_USE_MUL64_MASK \
- | PVR2_USE_FPU_MASK \
- | PVR2_USE_FPU2_MASK \
| PVR2_FPU_EXC_MASK \
| 0;
- env->pvr.regs[10] = 0x0c000000; /* Default to spartan 3a dsp family. */
- env->pvr.regs[11] = PVR11_USE_MMU | (16 << 17);
-#if defined(CONFIG_USER_ONLY)
- /* start in user mode with interrupts enabled. */
- env->sregs[SR_MSR] = MSR_EE | MSR_IE | MSR_VM | MSR_UM;
- env->pvr.regs[10] = 0x0c000000; /* Spartan 3a dsp. */
-#else
- env->sregs[SR_MSR] = 0;
- mmu_init(&env->mmu);
- env->mmu.c_mmu = 3;
- env->mmu.c_mmu_tlb_access = 3;
- env->mmu.c_mmu_zones = 16;
-#endif
-}
+ for (i = 0; mb_cpu_lookup[i].name && cpu->cfg.version; i++) {
+ if (strcmp(mb_cpu_lookup[i].name, cpu->cfg.version) == 0) {
+ version_code = mb_cpu_lookup[i].version_id;
+ break;
+ }
+ }
-static void mb_cpu_realizefn(DeviceState *dev, Error **errp)
-{
- MicroBlazeCPU *cpu = MICROBLAZE_CPU(dev);
- MicroBlazeCPUClass *mcc = MICROBLAZE_CPU_GET_CLASS(dev);
+ if (!version_code) {
+ qemu_log("Invalid MicroBlaze version number: %s\n", cpu->cfg.version);
+ }
- cpu_reset(CPU(cpu));
+ env->pvr.regs[0] |= (cpu->cfg.stackprot ? PVR0_SPROT_MASK : 0) |
+ (cpu->cfg.use_fpu ? PVR0_USE_FPU_MASK : 0) |
+ (cpu->cfg.use_mmu ? PVR0_USE_MMU_MASK : 0) |
+ (cpu->cfg.endi ? PVR0_ENDI_MASK : 0) |
+ (version_code << 16) |
+ (cpu->cfg.pvr == C_PVR_FULL ? PVR0_PVR_FULL_MASK : 0);
+
+ env->pvr.regs[2] |= (cpu->cfg.use_fpu ? PVR2_USE_FPU_MASK : 0) |
+ (cpu->cfg.use_fpu > 1 ? PVR2_USE_FPU2_MASK : 0);
+
+ env->pvr.regs[5] |= cpu->cfg.dcache_writeback ?
+ PVR5_DCACHE_WRITEBACK_MASK : 0;
+
+ env->pvr.regs[10] = 0x0c000000; /* Default to spartan 3a dsp family. */
+ env->pvr.regs[11] = PVR11_USE_MMU | (16 << 17);
mcc->parent_realize(dev, errp);
}
static bool tcg_initialized;
cs->env_ptr = env;
- cpu_exec_init(env);
+ cpu_exec_init(cs, &error_abort);
set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
+#ifndef CONFIG_USER_ONLY
+ /* Inbound IRQ and FIR lines */
+ qdev_init_gpio_in(DEVICE(cpu), microblaze_cpu_set_irq, 2);
+#endif
+
if (tcg_enabled() && !tcg_initialized) {
tcg_initialized = true;
mb_tcg_init();
};
static Property mb_properties[] = {
- DEFINE_PROP_UINT32("xlnx.base-vectors", MicroBlazeCPU, base_vectors, 0),
+ DEFINE_PROP_UINT32("base-vectors", MicroBlazeCPU, cfg.base_vectors, 0),
+ DEFINE_PROP_BOOL("use-stack-protection", MicroBlazeCPU, cfg.stackprot,
+ false),
+ /* If use-fpu > 0 - FPU is enabled
+ * If use-fpu = 2 - Floating point conversion and square root instructions
+ * are enabled
+ */
+ DEFINE_PROP_UINT8("use-fpu", MicroBlazeCPU, cfg.use_fpu, 2),
+ DEFINE_PROP_BOOL("use-mmu", MicroBlazeCPU, cfg.use_mmu, true),
+ DEFINE_PROP_BOOL("dcache-writeback", MicroBlazeCPU, cfg.dcache_writeback,
+ false),
+ DEFINE_PROP_BOOL("endianness", MicroBlazeCPU, cfg.endi, false),
+ DEFINE_PROP_STRING("version", MicroBlazeCPU, cfg.version),
+ DEFINE_PROP_UINT8("pvr", MicroBlazeCPU, cfg.pvr, C_PVR_FULL),
DEFINE_PROP_END_OF_LIST(),
};
mcc->parent_reset = cc->reset;
cc->reset = mb_cpu_reset;
+ cc->has_work = mb_cpu_has_work;
cc->do_interrupt = mb_cpu_do_interrupt;
+ cc->cpu_exec_interrupt = mb_cpu_exec_interrupt;
cc->dump_state = mb_cpu_dump_state;
cc->set_pc = mb_cpu_set_pc;
-#ifndef CONFIG_USER_ONLY
+ cc->gdb_read_register = mb_cpu_gdb_read_register;
+ cc->gdb_write_register = mb_cpu_gdb_write_register;
+#ifdef CONFIG_USER_ONLY
+ cc->handle_mmu_fault = mb_cpu_handle_mmu_fault;
+#else
cc->do_unassigned_access = mb_cpu_unassigned_access;
cc->get_phys_page_debug = mb_cpu_get_phys_page_debug;
#endif
dc->vmsd = &vmstate_mb_cpu;
dc->props = mb_properties;
+ cc->gdb_num_core_regs = 32 + 5;
+
+ cc->disas_set_info = mb_disas_set_info;
+
+ /*
+ * Reason: mb_cpu_initfn() calls cpu_exec_init(), which saves the
+ * object in cpus -> dangling pointer after final object_unref().
+ */
+ dc->cannot_destroy_with_object_finalize_yet = true;
}
static const TypeInfo mb_cpu_type_info = {
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