[PULL,02/10] hw/m68k/mcf5206: Pass CPU using QOM link property

Commit Message

Thomas Huth Nov. 2, 2023, 10:05 a.m. UTC

From: Philippe Mathieu-Daudé <[e-mail]>

Avoid the interrupt controller directly access the first cpu via
the qemu_get_cpu() call. Pass it as argument to mcf5206_init()
from the board code.

Reviewed-by: Richard Henderson <[e-mail]>
Reviewed-by: Thomas Huth <[e-mail]>
Signed-off-by: Philippe Mathieu-Daudé <[e-mail]>
Message-ID: <[e-mail]>
Signed-off-by: Thomas Huth <[e-mail]>
---
 hw/m68k/an5206.c  | 6 ++++--
 hw/m68k/mcf5206.c | 9 ++++++++-
 2 files changed, 12 insertions(+), 3 deletions(-)

Patch

diff --git a/hw/m68k/an5206.c b/hw/m68k/an5206.c
index 11ae4c9795..1e8e64f8bd 100644
--- a/hw/m68k/an5206.c
+++ b/hw/m68k/an5206.c
@@ -20,12 +20,14 @@ 
 #define AN5206_MBAR_ADDR 0x10000000
 #define AN5206_RAMBAR_ADDR 0x20000000
 
-static void mcf5206_init(MemoryRegion *sysmem, uint32_t base)
+static void mcf5206_init(M68kCPU *cpu, MemoryRegion *sysmem, uint32_t base)
 {
     DeviceState *dev;
     SysBusDevice *s;
 
     dev = qdev_new(TYPE_MCF5206_MBAR);
+    object_property_set_link(OBJECT(dev), "m68k-cpu",
+                             OBJECT(cpu), &error_abort);
     s = SYS_BUS_DEVICE(dev);
     sysbus_realize_and_unref(s, &error_fatal);
 
@@ -60,7 +62,7 @@  static void an5206_init(MachineState *machine)
     memory_region_init_ram(sram, NULL, "an5206.sram", 512, &error_fatal);
     memory_region_add_subregion(address_space_mem, AN5206_RAMBAR_ADDR, sram);
 
-    mcf5206_init(address_space_mem, AN5206_MBAR_ADDR);
+    mcf5206_init(cpu, address_space_mem, AN5206_MBAR_ADDR);
 
     /* Load kernel.  */
     if (!kernel_filename) {
diff --git a/hw/m68k/mcf5206.c b/hw/m68k/mcf5206.c
index 2ab1b4f059..f920ca2ceb 100644
--- a/hw/m68k/mcf5206.c
+++ b/hw/m68k/mcf5206.c
@@ -10,6 +10,7 @@ 
 #include "qemu/error-report.h"
 #include "qemu/log.h"
 #include "cpu.h"
+#include "hw/qdev-properties.h"
 #include "hw/boards.h"
 #include "hw/irq.h"
 #include "hw/m68k/mcf.h"
@@ -601,13 +602,19 @@  static void mcf5206_mbar_realize(DeviceState *dev, Error **errp)
     s->timer[1] = m5206_timer_init(s->pic[10]);
     s->uart[0] = mcf_uart_init(s->pic[12], serial_hd(0));
     s->uart[1] = mcf_uart_init(s->pic[13], serial_hd(1));
-    s->cpu = M68K_CPU(qemu_get_cpu(0));
 }
 
+static Property mcf5206_mbar_properties[] = {
+    DEFINE_PROP_LINK("m68k-cpu", m5206_mbar_state, cpu,
+                     TYPE_M68K_CPU, M68kCPU *),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
 static void mcf5206_mbar_class_init(ObjectClass *oc, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(oc);
 
+    device_class_set_props(dc, mcf5206_mbar_properties);
     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
     dc->desc = "MCF5206 system integration module";
     dc->realize = mcf5206_mbar_realize;