[Xen-devel] [PATCH v3 14/20] hw/pci-host/piix: Move RCR_IOPORT register definition

[Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>]

From: Philippe Mathieu-Daudé <f4bug@xxxxxxxxx>

The RCR_IOPORT register belongs to the PIIX chipset.
Move the definition to "piix.h", and prepend the PIIX prefix.

Reviewed-by: Aleksandar Markovic <amarkovic@xxxxxxxxxxxx>
Signed-off-by: Philippe Mathieu-Daudé <philmd@xxxxxxxxxx>
---
v2: prepend PIIX prefix (Aleksandar)
---
 hw/i386/acpi-build.c          | 2 +-
 hw/isa/piix4.c                | 2 +-
 hw/pci-host/piix.c            | 7 ++++---
 include/hw/i386/pc.h          | 6 ------
 include/hw/southbridge/piix.h | 6 ++++++
 5 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index b1b050d8e2..266d9b534b 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -209,7 +209,7 @@ static void acpi_get_pm_info(MachineState *machine, 
AcpiPmInfo *pm)
 
     /* The above need not be conditional on machine type because the reset port
      * happens to be the same on PIIX (pc) and ICH9 (q35). */
-    QEMU_BUILD_BUG_ON(ICH9_RST_CNT_IOPORT != RCR_IOPORT);
+    QEMU_BUILD_BUG_ON(ICH9_RST_CNT_IOPORT != PIIX_RCR_IOPORT);
 
     /* Fill in optional s3/s4 related properties */
     o = object_property_get_qobject(obj, ACPI_PM_PROP_S3_DISABLED, NULL);
diff --git a/hw/isa/piix4.c b/hw/isa/piix4.c
index f3e21ea76d..86678e6829 100644
--- a/hw/isa/piix4.c
+++ b/hw/isa/piix4.c
@@ -166,7 +166,7 @@ static void piix4_realize(PCIDevice *dev, Error **errp)
     memory_region_init_io(&s->rcr_mem, OBJECT(dev), &piix4_rcr_ops, s,
                           "reset-control", 1);
     memory_region_add_subregion_overlap(pci_address_space_io(dev),
-                                        RCR_IOPORT, &s->rcr_mem, 1);
+                                        PIIX_RCR_IOPORT, &s->rcr_mem, 1);
 
     /* initialize i8259 pic */
     i8259_out_irq = qemu_allocate_irqs(piix4_request_i8259_irq, s, 1);
diff --git a/hw/pci-host/piix.c b/hw/pci-host/piix.c
index 3292703de7..6548d9a4b5 100644
--- a/hw/pci-host/piix.c
+++ b/hw/pci-host/piix.c
@@ -27,6 +27,7 @@
 #include "hw/irq.h"
 #include "hw/pci/pci.h"
 #include "hw/pci/pci_host.h"
+#include "hw/southbridge/piix.h"
 #include "hw/qdev-properties.h"
 #include "hw/isa/isa.h"
 #include "hw/sysbus.h"
@@ -87,7 +88,7 @@ typedef struct PIIX3State {
     /* Reset Control Register contents */
     uint8_t rcr;
 
-    /* IO memory region for Reset Control Register (RCR_IOPORT) */
+    /* IO memory region for Reset Control Register (PIIX_RCR_IOPORT) */
     MemoryRegion rcr_mem;
 } PIIX3State;
 
@@ -695,8 +696,8 @@ static void piix3_realize(PCIDevice *dev, Error **errp)
 
     memory_region_init_io(&d->rcr_mem, OBJECT(dev), &rcr_ops, d,
                           "piix3-reset-control", 1);
-    memory_region_add_subregion_overlap(pci_address_space_io(dev), RCR_IOPORT,
-                                        &d->rcr_mem, 1);
+    memory_region_add_subregion_overlap(pci_address_space_io(dev),
+                                        PIIX_RCR_IOPORT, &d->rcr_mem, 1);
 
     qemu_register_reset(piix3_reset, d);
 }
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 2fd40ceebe..d6ff95e047 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -240,12 +240,6 @@ typedef struct PCII440FXState PCII440FXState;
 
 #define TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE "igd-passthrough-i440FX"
 
-/*
- * Reset Control Register: PCI-accessible ISA-Compatible Register at address
- * 0xcf9, provided by the PCI/ISA bridge (PIIX3 PCI function 0, 8086:7000).
- */
-#define RCR_IOPORT 0xcf9
-
 PCIBus *i440fx_init(const char *host_type, const char *pci_type,
                     PCII440FXState **pi440fx_state, int *piix_devfn,
                     ISABus **isa_bus, qemu_irq *pic,
diff --git a/include/hw/southbridge/piix.h b/include/hw/southbridge/piix.h
index add352456b..e49d4a6bbe 100644
--- a/include/hw/southbridge/piix.h
+++ b/include/hw/southbridge/piix.h
@@ -18,6 +18,12 @@ I2CBus *piix4_pm_init(PCIBus *bus, int devfn, uint32_t 
smb_io_base,
                       qemu_irq sci_irq, qemu_irq smi_irq,
                       int smm_enabled, DeviceState **piix4_pm);
 
+/*
+ * Reset Control Register: PCI-accessible ISA-Compatible Register at address
+ * 0xcf9, provided by the PCI/ISA bridge (PIIX3 PCI function 0, 8086:7000).
+ */
+#define PIIX_RCR_IOPORT 0xcf9
+
 extern PCIDevice *piix4_dev;
 
 DeviceState *piix4_create(PCIBus *pci_bus, ISABus **isa_bus,
-- 
2.21.0


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