From: Hervé Poussineau <hpous...@reactos.org>
v1:
* Coding style fixes.
Signed-off-by: Hervé Poussineau <hpous...@reactos.org>
Cc: Alexander Graf <ag...@suse.de>
Signed-off-by: Andreas Färber <andreas.faer...@web.de>
---
Hello Alex,
Seeing the discussions about Leon3, is this the way to go for ppc? Is ppc.[hc]
right?
The unconditional use of 6xx looks suspicious to me, no?
Should we rename cpu_device_irq_request() to cpu_device_irq_request_6xx()?
Regards,
Andreas
hw/ppc.c | 75 +++++++++++++++++++++++++++++++++++++++++++++++++++
hw/ppc.h | 2 +
target-ppc/cpu.h | 1 +
target-ppc/helper.c | 21 +++++++++++---
4 files changed, 94 insertions(+), 5 deletions(-)
diff --git a/hw/ppc.c b/hw/ppc.c
index 968aec1..0927326 100644
--- a/hw/ppc.c
+++ b/hw/ppc.c
@@ -30,6 +30,8 @@
#include "loader.h"
#include "kvm.h"
#include "kvm_ppc.h"
+#include "hw/qdev.h"
+#include "hw/sysbus.h"
//#define PPC_DEBUG_IRQ
//#define PPC_DEBUG_TB
@@ -1286,3 +1288,76 @@ int PPC_NVRAM_set_params (nvram_t *nvram, uint16_t
NVRAM_size,
return 0;
}
+
+DeviceState *cpu_ppc_create_simple(const char *cpu_model)
+{
+ DeviceState *dev;
+
+ dev = qdev_create(NULL, "cpu-ppc");
+ if (!dev) {
+ return NULL;
+ }
+ qdev_prop_set_string(dev, "model", qemu_strdup(cpu_model));
+ if (qdev_init(dev) < 0) {
+ return NULL;
+ }
+ return dev;
+}
+
+typedef struct CPUPPC {
+ SysBusDevice busdev;
+ char *model;
+ CPUPPCState state;
+} CPUPPC;
+
+static void cpu_device_irq_request(void *opaque, int pin, int level)
+{
+ CPUPPC* cpu = opaque;
+ CPUPPCState* env = &cpu->state;
+ ppc6xx_set_irq(env, pin, level);
+}
+
+static int cpu_device_init(SysBusDevice *dev)
+{
+ CPUPPC* cpu = FROM_SYSBUS(CPUPPC, dev);
+ CPUPPCState* env = &cpu->state;
+
+ if (cpu_ppc_init_inplace(env, cpu->model) < 0) {
+ return -1;
+ }
+
+ if (env->flags & POWERPC_FLAG_RTC_CLK) {
+ /* POWER / PowerPC 601 RTC clock frequency is 7.8125 MHz */
+ cpu_ppc_tb_init(env, 7812500UL);
+ } else {
+ /* Set time-base frequency to 100 Mhz */
+ cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL);
+ }
+
+ qdev_init_gpio_in(&dev->qdev, cpu_device_irq_request, PPC6xx_INPUT_NB);
+ return 0;
+}
+
+static void cpu_device_reset(DeviceState *d)
+{
+ CPUPPC *s = FROM_SYSBUS(CPUPPC, sysbus_from_qdev(d));
+ cpu_reset(&s->state);
+}
+
+static SysBusDeviceInfo cpu_device_info = {
+ .qdev.name = "cpu-ppc",
+ .qdev.size = sizeof(CPUPPC),
+ .qdev.reset = cpu_device_reset,
+ .init = cpu_device_init,
+ .qdev.props = (Property[]) {
+ DEFINE_PROP_STRING("model", CPUPPC, model),
+ DEFINE_PROP_END_OF_LIST(),
+ },
+};
+
+static void ppc_register_devices(void)
+{
+ sysbus_register_withprop(&cpu_device_info);
+}
+
+device_init(ppc_register_devices)
diff --git a/hw/ppc.h b/hw/ppc.h
index 34f54cf..ae8dd97 100644
--- a/hw/ppc.h
+++ b/hw/ppc.h
@@ -37,6 +37,8 @@ void ppce500_irq_init (CPUState *env);
void ppc6xx_irq_init (CPUState *env);
void ppc970_irq_init (CPUState *env);
+DeviceState *cpu_ppc_create_simple(const char *cpu_model);
+
/* PPC machines for OpenBIOS */
enum {
ARCH_PREP = 0,
diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index deb8d7c..0f56d45 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -721,6 +721,7 @@ struct mmu_ctx_t {
/*****************************************************************************/
CPUPPCState *cpu_ppc_init (const char *cpu_model);
+int cpu_ppc_init_inplace(CPUPPCState *env, const char *cpu_model);
void ppc_translate_init(void);
int cpu_ppc_exec (CPUPPCState *s);
void cpu_ppc_close (CPUPPCState *s);
diff --git a/target-ppc/helper.c b/target-ppc/helper.c
index 4b49101..99af1f6 100644
--- a/target-ppc/helper.c
+++ b/target-ppc/helper.c
@@ -2794,22 +2794,33 @@ void cpu_reset(CPUPPCState *env)
tlb_flush(env, 1);
}
-CPUPPCState *cpu_ppc_init (const char *cpu_model)
+int cpu_ppc_init_inplace(CPUPPCState *env, const char *cpu_model)
{
- CPUPPCState *env;
const ppc_def_t *def;
def = cpu_ppc_find_by_name(cpu_model);
- if (!def)
- return NULL;
+ if (!def) {
+ return -1;
+ }
- env = qemu_mallocz(sizeof(CPUPPCState));
cpu_exec_init(env);
ppc_translate_init();
env->cpu_model_str = cpu_model;
cpu_ppc_register_internal(env, def);
qemu_init_vcpu(env);
+ return 0;
+}
+
+CPUPPCState *cpu_ppc_init(const char *cpu_model)
+{
+ CPUPPCState *env;
+
+ env = qemu_mallocz(sizeof(CPUPPCState));
+ if (cpu_ppc_init_inplace(env, cpu_model) < 0) {
+ qemu_free(env);
+ return NULL;
+ }
return env;
}
--
1.7.3.4
