diff mbox series

[v2,14/14] ppc440_pcix: Stop using system io region for PCI bus

Message ID 0091e093b8c3d4b34a509b7daf1ccbeeddd1aca5.1688586835.git.balaton@eik.bme.hu (mailing list archive)
State New, archived
Headers show
Series PPC440 devices misc clean up | expand

Commit Message

BALATON Zoltan July 5, 2023, 8:12 p.m. UTC 
Reduce the iomem region to 64K and use it for the PCI io space and map
it directly from the board without an intermediate alias that is not
really needed.

Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 hw/ppc/ppc440_pcix.c | 9 ++++++---
 hw/ppc/sam460ex.c    | 6 +-----
 2 files changed, 7 insertions(+), 8 deletions(-)
diff mbox series

Patch

diff --git a/hw/ppc/ppc440_pcix.c b/hw/ppc/ppc440_pcix.c
index cf932e4b25..672090de94 100644
--- a/hw/ppc/ppc440_pcix.c
+++ b/hw/ppc/ppc440_pcix.c
@@ -23,6 +23,7 @@ 
 #include "qemu/error-report.h"
 #include "qemu/log.h"
 #include "qemu/module.h"
+#include "qemu/units.h"
 #include "hw/irq.h"
 #include "hw/ppc/ppc.h"
 #include "hw/ppc/ppc4xx.h"
@@ -490,10 +491,11 @@  static void ppc440_pcix_realize(DeviceState *dev, Error **errp)
     s = PPC440_PCIX_HOST(dev);
 
     sysbus_init_irq(sbd, &s->irq);
-    memory_region_init(&s->busmem, OBJECT(dev), "pci bus memory", UINT64_MAX);
+    memory_region_init(&s->busmem, OBJECT(dev), "pci-mem", UINT64_MAX);
+    memory_region_init(&s->iomem, OBJECT(dev), "pci-io", 64 * KiB);
     h->bus = pci_register_root_bus(dev, NULL, ppc440_pcix_set_irq,
-                         ppc440_pcix_map_irq, &s->irq, &s->busmem,
-                         get_system_io(), PCI_DEVFN(0, 0), 1, TYPE_PCI_BUS);
+                         ppc440_pcix_map_irq, &s->irq, &s->busmem, &s->iomem,
+                         PCI_DEVFN(0, 0), 1, TYPE_PCI_BUS);
 
     s->dev = pci_create_simple(h->bus, PCI_DEVFN(0, 0),
                                TYPE_PPC4xx_HOST_BRIDGE);
@@ -514,6 +516,7 @@  static void ppc440_pcix_realize(DeviceState *dev, Error **errp)
     memory_region_add_subregion(&s->container, PCIC0_CFGDATA, &h->data_mem);
     memory_region_add_subregion(&s->container, PPC440_REG_BASE, &s->regs);
     sysbus_init_mmio(sbd, &s->container);
+    sysbus_init_mmio(sbd, &s->iomem);
 }
 
 static void ppc440_pcix_class_init(ObjectClass *klass, void *data)
diff --git a/hw/ppc/sam460ex.c b/hw/ppc/sam460ex.c
index 8d0e551d14..1e615b8d35 100644
--- a/hw/ppc/sam460ex.c
+++ b/hw/ppc/sam460ex.c
@@ -269,7 +269,6 @@  static void main_cpu_reset(void *opaque)
 
 static void sam460ex_init(MachineState *machine)
 {
-    MemoryRegion *isa = g_new(MemoryRegion, 1);
     MemoryRegion *l2cache_ram = g_new(MemoryRegion, 1);
     DeviceState *uic[4];
     int i;
@@ -441,12 +440,9 @@  static void sam460ex_init(MachineState *machine)
     /* All PCI irqs are connected to the same UIC pin (cf. UBoot source) */
     dev = sysbus_create_simple(TYPE_PPC440_PCIX_HOST, 0xc0ec00000,
                                qdev_get_gpio_in(uic[1], 0));
+    sysbus_mmio_map(SYS_BUS_DEVICE(dev), 1, 0xc08000000);
     pci_bus = PCI_BUS(qdev_get_child_bus(dev, "pci.0"));
 
-    memory_region_init_alias(isa, NULL, "isa_mmio", get_system_io(),
-                             0, 0x10000);
-    memory_region_add_subregion(get_system_memory(), 0xc08000000, isa);
-
     /* PCI devices */
     pci_create_simple(pci_bus, PCI_DEVFN(6, 0), "sm501");
     /* SoC has a single SATA port but we don't emulate that yet