[Qemu-devel] [PATCH 04/13] switch ide bus to inplace allocation.

[Gerd Hoffmann <kraxel@redhat.com>]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/ide/internal.h |    2 +-
 hw/ide/isa.c      |   24 ++++++++++++------------
 hw/ide/pci.c      |   42 +++++++++++++++++++++---------------------
 hw/ide/qdev.c     |    7 ++-----
 4 files changed, 36 insertions(+), 39 deletions(-)

diff --git a/hw/ide/internal.h b/hw/ide/internal.h
index 9df759d..029bf80 100644
--- a/hw/ide/internal.h
+++ b/hw/ide/internal.h
@@ -551,7 +551,7 @@ void ide_init2(IDEBus *bus, DriveInfo *hd0, DriveInfo *hd1,
 void ide_init_ioport(IDEBus *bus, int iobase, int iobase2);
 
 /* hw/ide/qdev.c */
-IDEBus *ide_bus_new(DeviceState *dev);
+void ide_bus_new(IDEBus *idebus, DeviceState *dev);
 IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive);
 
 #endif /* HW_IDE_INTERNAL_H */
diff --git a/hw/ide/isa.c b/hw/ide/isa.c
index d2fe0c0..3205f40 100644
--- a/hw/ide/isa.c
+++ b/hw/ide/isa.c
@@ -37,7 +37,7 @@
 
 typedef struct ISAIDEState {
     ISADevice dev;
-    IDEBus    *bus;
+    IDEBus    bus;
     uint32_t  iobase;
     uint32_t  iobase2;
     uint32_t  isairq;
@@ -48,18 +48,18 @@ static void isa_ide_save(QEMUFile* f, void *opaque)
 {
     ISAIDEState *s = opaque;
 
-    idebus_save(f, s->bus);
-    ide_save(f, &s->bus->ifs[0]);
-    ide_save(f, &s->bus->ifs[1]);
+    idebus_save(f, &s->bus);
+    ide_save(f, &s->bus.ifs[0]);
+    ide_save(f, &s->bus.ifs[1]);
 }
 
 static int isa_ide_load(QEMUFile* f, void *opaque, int version_id)
 {
     ISAIDEState *s = opaque;
 
-    idebus_load(f, s->bus, version_id);
-    ide_load(f, &s->bus->ifs[0], version_id);
-    ide_load(f, &s->bus->ifs[1], version_id);
+    idebus_load(f, &s->bus, version_id);
+    ide_load(f, &s->bus.ifs[0], version_id);
+    ide_load(f, &s->bus.ifs[1], version_id);
     return 0;
 }
 
@@ -67,10 +67,10 @@ static int isa_ide_initfn(ISADevice *dev)
 {
     ISAIDEState *s = DO_UPCAST(ISAIDEState, dev, dev);
 
-    s->bus = ide_bus_new(&s->dev.qdev);
-    ide_init_ioport(s->bus, s->iobase, s->iobase2);
+    ide_bus_new(&s->bus, &s->dev.qdev);
+    ide_init_ioport(&s->bus, s->iobase, s->iobase2);
     isa_init_irq(dev, &s->irq, s->isairq);
-    ide_init2(s->bus, NULL, NULL, s->irq);
+    ide_init2(&s->bus, NULL, NULL, s->irq);
     register_savevm("isa-ide", 0, 3, isa_ide_save, isa_ide_load, s);
     return 0;
 };
@@ -90,9 +90,9 @@ int isa_ide_init(int iobase, int iobase2, int isairq,
 
     s = DO_UPCAST(ISAIDEState, dev, dev);
     if (hd0)
-        ide_create_drive(s->bus, 0, hd0);
+        ide_create_drive(&s->bus, 0, hd0);
     if (hd1)
-        ide_create_drive(s->bus, 1, hd1);
+        ide_create_drive(&s->bus, 1, hd1);
     return 0;
 }
 
diff --git a/hw/ide/pci.c b/hw/ide/pci.c
index 89ecd44..bddf541 100644
--- a/hw/ide/pci.c
+++ b/hw/ide/pci.c
@@ -51,7 +51,7 @@
 
 typedef struct PCIIDEState {
     PCIDevice dev;
-    IDEBus *bus[2];
+    IDEBus bus[2];
     BMDMAState bmdma[2];
     int type; /* see IDE_TYPE_xxx */
     uint32_t secondary;
@@ -66,7 +66,7 @@ static void ide_map(PCIDevice *pci_dev, int region_num,
     IDEBus *bus;
 
     if (region_num <= 3) {
-        bus = d->bus[(region_num >> 1)];
+        bus = &d->bus[(region_num >> 1)];
         if (region_num & 1) {
             register_ioport_read(addr + 2, 1, 1, ide_status_read, bus);
             register_ioport_write(addr + 2, 1, 1, ide_cmd_write, bus);
@@ -252,9 +252,9 @@ static void bmdma_map(PCIDevice *pci_dev, int region_num,
 
     for(i = 0;i < 2; i++) {
         BMDMAState *bm = &d->bmdma[i];
-        d->bus[i]->bmdma = bm;
+        d->bus[i].bmdma = bm;
         bm->pci_dev = DO_UPCAST(PCIIDEState, dev, pci_dev);
-        bm->bus = d->bus[i];
+        bm->bus = d->bus+i;
         qemu_add_vm_change_state_handler(ide_dma_restart_cb, bm);
 
         register_ioport_write(addr, 1, 1, bmdma_cmd_writeb, bm);
@@ -294,13 +294,13 @@ static void pci_ide_save(QEMUFile* f, void *opaque)
 
     /* per IDE interface data */
     for(i = 0; i < 2; i++) {
-        idebus_save(f, d->bus[i]);
+        idebus_save(f, d->bus+i);
     }
 
     /* per IDE drive data */
     for(i = 0; i < 2; i++) {
-        ide_save(f, &d->bus[i]->ifs[0]);
-        ide_save(f, &d->bus[i]->ifs[1]);
+        ide_save(f, &d->bus[i].ifs[0]);
+        ide_save(f, &d->bus[i].ifs[1]);
     }
 }
 
@@ -330,13 +330,13 @@ static int pci_ide_load(QEMUFile* f, void *opaque, int version_id)
 
     /* per IDE interface data */
     for(i = 0; i < 2; i++) {
-        idebus_load(f, d->bus[i], version_id);
+        idebus_load(f, d->bus+i, version_id);
     }
 
     /* per IDE drive data */
     for(i = 0; i < 2; i++) {
-        ide_load(f, &d->bus[i]->ifs[0], version_id);
-        ide_load(f, &d->bus[i]->ifs[1], version_id);
+        ide_load(f, &d->bus[i].ifs[0], version_id);
+        ide_load(f, &d->bus[i].ifs[1], version_id);
     }
     return 0;
 }
@@ -351,7 +351,7 @@ static void pci_ide_create_devs(PCIDevice *dev, DriveInfo **hd_table)
     for (i = 0; i < 4; i++) {
         if (hd_table[i] == NULL)
             continue;
-        ide_create_drive(d->bus[bus[i]], unit[i], hd_table[i]);
+        ide_create_drive(d->bus+bus[i], unit[i], hd_table[i]);
     }
 }
 
@@ -427,10 +427,10 @@ static int pci_cmd646_ide_initfn(PCIDevice *dev)
     pci_conf[0x3d] = 0x01; // interrupt on pin 1
 
     irq = qemu_allocate_irqs(cmd646_set_irq, d, 2);
-    d->bus[0] = ide_bus_new(&d->dev.qdev);
-    d->bus[1] = ide_bus_new(&d->dev.qdev);
-    ide_init2(d->bus[0], NULL, NULL, irq[0]);
-    ide_init2(d->bus[1], NULL, NULL, irq[1]);
+    ide_bus_new(&d->bus[0], &d->dev.qdev);
+    ide_bus_new(&d->bus[1], &d->dev.qdev);
+    ide_init2(&d->bus[0], NULL, NULL, irq[0]);
+    ide_init2(&d->bus[1], NULL, NULL, irq[1]);
 
     register_savevm("ide", 0, 3, pci_ide_save, pci_ide_load, d);
     qemu_register_reset(cmd646_reset, d);
@@ -482,13 +482,13 @@ static int pci_piix_ide_initfn(PCIIDEState *d)
 
     register_savevm("ide", 0, 3, pci_ide_save, pci_ide_load, d);
 
-    d->bus[0] = ide_bus_new(&d->dev.qdev);
-    d->bus[1] = ide_bus_new(&d->dev.qdev);
-    ide_init_ioport(d->bus[0], 0x1f0, 0x3f6);
-    ide_init_ioport(d->bus[1], 0x170, 0x376);
+    ide_bus_new(&d->bus[0], &d->dev.qdev);
+    ide_bus_new(&d->bus[1], &d->dev.qdev);
+    ide_init_ioport(&d->bus[0], 0x1f0, 0x3f6);
+    ide_init_ioport(&d->bus[1], 0x170, 0x376);
 
-    ide_init2(d->bus[0], NULL, NULL, isa_reserve_irq(14));
-    ide_init2(d->bus[1], NULL, NULL, isa_reserve_irq(15));
+    ide_init2(&d->bus[0], NULL, NULL, isa_reserve_irq(14));
+    ide_init2(&d->bus[1], NULL, NULL, isa_reserve_irq(15));
     return 0;
 }
 
diff --git a/hw/ide/qdev.c b/hw/ide/qdev.c
index d467e3a..c562bc6 100644
--- a/hw/ide/qdev.c
+++ b/hw/ide/qdev.c
@@ -29,12 +29,9 @@ static struct BusInfo ide_bus_info = {
     .size  = sizeof(IDEBus),
 };
 
-IDEBus *ide_bus_new(DeviceState *dev)
+void ide_bus_new(IDEBus *idebus, DeviceState *dev)
 {
-    IDEBus *idebus;
-
-    idebus = FROM_QBUS(IDEBus, qbus_create(&ide_bus_info, dev, NULL));
-    return idebus;
+    qbus_create_inplace(&idebus->qbus, &ide_bus_info, dev, NULL);
 }
 
 static int ide_qdev_init(DeviceState *qdev, DeviceInfo *base)
-- 
1.6.2.5