[PATCH 29/44] hw/arm/armsse: Move PPUs into data-driven framework

[Peter Maydell]

Move the PPUs into the data-driven device placement framework.
We don't implement them, so they are just TYPE_UNIMPLEMENTED stubs.

Because the SSE-200 and the IotKit diverge here (the IoTKit does
not have the PPUs) we need to separate out the ARMSSEDeviceInfo
for the two variants, and only add the PPUs to the SSE-200.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 include/hw/arm/armsse.h |  10 +-
 hw/arm/armsse.c         | 222 +++++++++++++++++++++++++++++-----------
 2 files changed, 165 insertions(+), 67 deletions(-)

diff --git a/include/hw/arm/armsse.h b/include/hw/arm/armsse.h
index 7416c08a802..eb4e937173f 100644
--- a/include/hw/arm/armsse.h
+++ b/include/hw/arm/armsse.h
@@ -135,14 +135,6 @@ OBJECT_DECLARE_TYPE(ARMSSE, ARMSSEClass,
 
 #define SSE_MAX_CPUS 2
 
-/* These define what each PPU in the ppu[] index is for */
-#define CPU0CORE_PPU 0
-#define CPU1CORE_PPU 1
-#define DBG_PPU 2
-#define RAM0_PPU 3
-#define RAM1_PPU 4
-#define RAM2_PPU 5
-#define RAM3_PPU 6
 #define NUM_PPUS 7
 
 /* Number of CPU IRQs used by the SSE itself */
@@ -176,7 +168,7 @@ struct ARMSSE {
     IoTKitSysCtl sysinfo;
 
     ARMSSEMHU mhu[2];
-    UnimplementedDeviceState ppu[NUM_PPUS];
+    UnimplementedDeviceState unimp[NUM_PPUS];
     UnimplementedDeviceState cachectrl[SSE_MAX_CPUS];
     UnimplementedDeviceState cpusecctrl[SSE_MAX_CPUS];
 
diff --git a/hw/arm/armsse.c b/hw/arm/armsse.c
index 961b2d44137..f72d1adafea 100644
--- a/hw/arm/armsse.c
+++ b/hw/arm/armsse.c
@@ -47,6 +47,7 @@ typedef struct ARMSSEDeviceInfo {
     const char *type; /* QOM type name */
     unsigned int index; /* Which of the N devices of this type is this ? */
     hwaddr addr;
+    hwaddr size; /* only needed for TYPE_UNIMPLEMENTED_DEVICE */
     int ppc; /* Index of APB PPC this device is wired up to, or NO_PPC */
     int ppc_port; /* Port number of this device on the PPC */
     int irq; /* NO_IRQ, or 0..NUM_SSE_IRQS-1, or NMI_0 or NMI_1 */
@@ -62,7 +63,6 @@ struct ARMSSEInfo {
     uint32_t iidr;
     uint32_t cpuwait_rst;
     bool has_mhus;
-    bool has_ppus;
     bool has_cachectrl;
     bool has_cpusecctrl;
     bool has_cpuid;
@@ -94,7 +94,7 @@ static Property armsse_properties[] = {
     DEFINE_PROP_END_OF_LIST()
 };
 
-static const ARMSSEDeviceInfo sse200_devices[] = {
+static const ARMSSEDeviceInfo iotkit_devices[] = {
     {
         .name = "timer0",
         .type = TYPE_CMSDK_APB_TIMER,
@@ -178,6 +178,153 @@ static const ARMSSEDeviceInfo sse200_devices[] = {
     }
 };
 
+static const ARMSSEDeviceInfo sse200_devices[] = {
+    {
+        .name = "timer0",
+        .type = TYPE_CMSDK_APB_TIMER,
+        .index = 0,
+        .addr = 0x40000000,
+        .ppc = 0,
+        .ppc_port = 0,
+        .irq = 3,
+    },
+    {
+        .name = "timer1",
+        .type = TYPE_CMSDK_APB_TIMER,
+        .index = 1,
+        .addr = 0x40001000,
+        .ppc = 0,
+        .ppc_port = 1,
+        .irq = 4,
+    },
+    {
+        .name = "s32ktimer",
+        .type = TYPE_CMSDK_APB_TIMER,
+        .index = 2,
+        .addr = 0x4002f000,
+        .ppc = 1,
+        .ppc_port = 0,
+        .irq = 2,
+        .slowclk = true,
+    },
+    {
+        .name = "dualtimer",
+        .type = TYPE_CMSDK_APB_DUALTIMER,
+        .index = 0,
+        .addr = 0x40002000,
+        .ppc = 0,
+        .ppc_port = 2,
+        .irq = 5,
+    },
+    {
+        .name = "s32kwatchdog",
+        .type = TYPE_CMSDK_APB_WATCHDOG,
+        .index = 0,
+        .addr = 0x5002e000,
+        .ppc = NO_PPC,
+        .irq = NMI_0,
+        .slowclk = true,
+    },
+    {
+        .name = "nswatchdog",
+        .type = TYPE_CMSDK_APB_WATCHDOG,
+        .index = 1,
+        .addr = 0x40081000,
+        .ppc = NO_PPC,
+        .irq = 1,
+    },
+    {
+        .name = "swatchdog",
+        .type = TYPE_CMSDK_APB_WATCHDOG,
+        .index = 2,
+        .addr = 0x50081000,
+        .ppc = NO_PPC,
+        .irq = NMI_1,
+    },
+    {
+        .name = "armsse-sysinfo",
+        .type = TYPE_IOTKIT_SYSINFO,
+        .index = 0,
+        .addr = 0x40020000,
+        .ppc = NO_PPC,
+        .irq = NO_IRQ,
+    },
+    {
+        .name = "armsse-sysctl",
+        .type = TYPE_IOTKIT_SYSCTL,
+        .index = 0,
+        .addr = 0x50021000,
+        .ppc = NO_PPC,
+        .irq = NO_IRQ,
+    },
+    {
+        .name = "CPU0CORE_PPU",
+        .type = TYPE_UNIMPLEMENTED_DEVICE,
+        .index = 0,
+        .addr = 0x50023000,
+        .size = 0x1000,
+        .ppc = NO_PPC,
+        .irq = NO_IRQ,
+    },
+    {
+        .name = "CPU1CORE_PPU",
+        .type = TYPE_UNIMPLEMENTED_DEVICE,
+        .index = 1,
+        .addr = 0x50025000,
+        .size = 0x1000,
+        .ppc = NO_PPC,
+        .irq = NO_IRQ,
+    },
+    {
+        .name = "DBG_PPU",
+        .type = TYPE_UNIMPLEMENTED_DEVICE,
+        .index = 2,
+        .addr = 0x50029000,
+        .size = 0x1000,
+        .ppc = NO_PPC,
+        .irq = NO_IRQ,
+    },
+    {
+        .name = "RAM0_PPU",
+        .type = TYPE_UNIMPLEMENTED_DEVICE,
+        .index = 3,
+        .addr = 0x5002a000,
+        .size = 0x1000,
+        .ppc = NO_PPC,
+        .irq = NO_IRQ,
+    },
+    {
+        .name = "RAM1_PPU",
+        .type = TYPE_UNIMPLEMENTED_DEVICE,
+        .index = 4,
+        .addr = 0x5002b000,
+        .size = 0x1000,
+        .ppc = NO_PPC,
+        .irq = NO_IRQ,
+    },
+    {
+        .name = "RAM2_PPU",
+        .type = TYPE_UNIMPLEMENTED_DEVICE,
+        .index = 5,
+        .addr = 0x5002c000,
+        .size = 0x1000,
+        .ppc = NO_PPC,
+        .irq = NO_IRQ,
+    },
+    {
+        .name = "RAM3_PPU",
+        .type = TYPE_UNIMPLEMENTED_DEVICE,
+        .index = 6,
+        .addr = 0x5002d000,
+        .size = 0x1000,
+        .ppc = NO_PPC,
+        .irq = NO_IRQ,
+    },
+    {
+        .name = NULL,
+    }
+};
+
 static const ARMSSEInfo armsse_variants[] = {
     {
         .name = TYPE_IOTKIT,
@@ -188,12 +335,11 @@ static const ARMSSEInfo armsse_variants[] = {
         .iidr = 0,
         .cpuwait_rst = 0,
         .has_mhus = false,
-        .has_ppus = false,
         .has_cachectrl = false,
         .has_cpusecctrl = false,
         .has_cpuid = false,
         .props = iotkit_properties,
-        .devinfo = sse200_devices,
+        .devinfo = iotkit_devices,
     },
     {
         .name = TYPE_SSE200,
@@ -204,7 +350,6 @@ static const ARMSSEInfo armsse_variants[] = {
         .iidr = 0,
         .cpuwait_rst = 2,
         .has_mhus = true,
-        .has_ppus = true,
         .has_cachectrl = true,
         .has_cpusecctrl = true,
         .has_cpuid = true,
@@ -431,6 +576,11 @@ static void armsse_init(Object *obj)
             assert(devinfo->index == 0);
             object_initialize_child(obj, devinfo->name, &s->sysctl,
                                     TYPE_IOTKIT_SYSCTL);
+        } else if (!strcmp(devinfo->type, TYPE_UNIMPLEMENTED_DEVICE)) {
+            assert(devinfo->index < ARRAY_SIZE(s->unimp));
+            object_initialize_child(obj, devinfo->name,
+                                    &s->unimp[devinfo->index],
+                                    TYPE_UNIMPLEMENTED_DEVICE);
         } else {
             g_assert_not_reached();
         }
@@ -463,26 +613,6 @@ static void armsse_init(Object *obj)
         object_initialize_child(obj, "mhu0", &s->mhu[0], TYPE_ARMSSE_MHU);
         object_initialize_child(obj, "mhu1", &s->mhu[1], TYPE_ARMSSE_MHU);
     }
-    if (info->has_ppus) {
-        for (i = 0; i < info->num_cpus; i++) {
-            char *name = g_strdup_printf("CPU%dCORE_PPU", i);
-            int ppuidx = CPU0CORE_PPU + i;
-
-            object_initialize_child(obj, name, &s->ppu[ppuidx],
-                                    TYPE_UNIMPLEMENTED_DEVICE);
-            g_free(name);
-        }
-        object_initialize_child(obj, "DBG_PPU", &s->ppu[DBG_PPU],
-                                TYPE_UNIMPLEMENTED_DEVICE);
-        for (i = 0; i < info->sram_banks; i++) {
-            char *name = g_strdup_printf("RAM%d_PPU", i);
-            int ppuidx = RAM0_PPU + i;
-
-            object_initialize_child(obj, name, &s->ppu[ppuidx],
-                                    TYPE_UNIMPLEMENTED_DEVICE);
-            g_free(name);
-        }
-    }
     if (info->has_cachectrl) {
         for (i = 0; i < info->num_cpus; i++) {
             char *name = g_strdup_printf("cachectrl%d", i);
@@ -568,17 +698,6 @@ static qemu_irq armsse_get_common_irq_in(ARMSSE *s, int 
irqno)
     }
 }
 
-static void map_ppu(ARMSSE *s, int ppuidx, const char *name, hwaddr addr)
-{
-    /* Map a PPU unimplemented device stub */
-    DeviceState *dev = DEVICE(&s->ppu[ppuidx]);
-
-    qdev_prop_set_string(dev, "name", name);
-    qdev_prop_set_uint64(dev, "size", 0x1000);
-    sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal);
-    sysbus_mmio_map(SYS_BUS_DEVICE(&s->ppu[ppuidx]), 0, addr);
-}
-
 static void armsse_realize(DeviceState *dev, Error **errp)
 {
     ARMSSE *s = ARM_SSE(dev);
@@ -941,6 +1060,15 @@ static void armsse_realize(DeviceState *dev, Error **errp)
                 return;
             }
             mr = sysbus_mmio_get_region(sbd, 0);
+        } else if (!strcmp(devinfo->type, TYPE_UNIMPLEMENTED_DEVICE)) {
+            sbd = SYS_BUS_DEVICE(&s->unimp[devinfo->index]);
+
+            qdev_prop_set_string(DEVICE(sbd), "name", devinfo->name);
+            qdev_prop_set_uint64(DEVICE(sbd), "size", devinfo->size);
+            if (!sysbus_realize(sbd, errp)) {
+                return;
+            }
+            mr = sysbus_mmio_get_region(sbd, 0);
         } else {
             g_assert_not_reached();
         }
@@ -1158,28 +1286,6 @@ static void armsse_realize(DeviceState *dev, Error 
**errp)
         memory_region_add_subregion(&s->container, devinfo->addr, mr);
     }
 
-    if (info->has_ppus) {
-        /* CPUnCORE_PPU for each CPU */
-        for (i = 0; i < info->num_cpus; i++) {
-            char *name = g_strdup_printf("CPU%dCORE_PPU", i);
-
-            map_ppu(s, CPU0CORE_PPU + i, name, 0x50023000 + i * 0x2000);
-            /*
-             * We don't support CPU debug so don't create the
-             * CPU0DEBUG_PPU at 0x50024000 and 0x50026000.
-             */
-            g_free(name);
-        }
-        map_ppu(s, DBG_PPU, "DBG_PPU", 0x50029000);
-
-        for (i = 0; i < info->sram_banks; i++) {
-            char *name = g_strdup_printf("RAM%d_PPU", i);
-
-            map_ppu(s, RAM0_PPU + i, name, 0x5002a000 + i * 0x1000);
-            g_free(name);
-        }
-    }
-
     for (i = 0; i < ARRAY_SIZE(s->ppc_irq_splitter); i++) {
         Object *splitter = OBJECT(&s->ppc_irq_splitter[i]);
 
-- 
2.20.1