[Qemu-devel] [PATCH 02/27] rename pci_hotplug_fn to hotplug_fn and make it available for other devices

[Igor Mammedov <imammedo@redhat.com>]

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
resolving conflict with pcihp: s/PCIHotplugState/HotplugState/
perhaps this patch should go before  pcihp patches to avoid
unnecessary code churn??
---
 hw/acpi/pcihp.c          |    6 +++---
 hw/acpi/piix4.c          |   22 ++++++++++++----------
 hw/pci/pci.c             |   12 ++++++------
 hw/pci/pcie.c            |    7 ++++---
 hw/pci/shpc.c            |    9 +++++----
 include/hw/acpi/pcihp.h  |    2 +-
 include/hw/pci/pci.h     |   11 +----------
 include/hw/pci/pci_bus.h |    2 +-
 include/hw/qdev-core.h   |    9 +++++++++
 9 files changed, 42 insertions(+), 38 deletions(-)

diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c
index 8a0822e..04d39e9 100644
--- a/hw/acpi/pcihp.c
+++ b/hw/acpi/pcihp.c
@@ -195,7 +195,7 @@ static void disable_device(AcpiPciHpState *s, unsigned bsel, int slot)
 }
 
 int acpi_pcihp_device_hotplug(AcpiPciHpState *s, PCIDevice *dev,
-                              PCIHotplugState state)
+                              HotplugState state)
 {
     int slot = PCI_SLOT(dev->devfn);
     int bsel = acpi_pcihp_get_bsel(dev->bus);
@@ -206,12 +206,12 @@ int acpi_pcihp_device_hotplug(AcpiPciHpState *s, PCIDevice *dev,
     /* Don't send event when device is enabled during qemu machine creation:
      * it is present on boot, no hotplug event is necessary. We do send an
      * event when the device is disabled later. */
-    if (state == PCI_COLDPLUG_ENABLED) {
+    if (state == COLDPLUG_ENABLED) {
         s->acpi_pcihp_pci_status[bsel].device_present |= (1U << slot);
         return 0;
     }
 
-    if (state == PCI_HOTPLUG_ENABLED) {
+    if (state == HOTPLUG_ENABLED) {
         enable_device(s, bsel, slot);
     } else {
         disable_device(s, bsel, slot);
diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index b6dfa71..cf42f13 100644
--- a/hw/acpi/piix4.c
+++ b/hw/acpi/piix4.c
@@ -401,11 +401,12 @@ static void piix4_pm_powerdown_req(Notifier *n, void *opaque)
     acpi_pm1_evt_power_down(&s->ar);
 }
 
-static int piix4_acpi_pci_hotplug(DeviceState *qdev, PCIDevice *dev,
-                                  PCIHotplugState state)
+static int piix4_acpi_pci_hotplug(DeviceState *qdev, DeviceState *dev,
+                                  HotplugState state)
 {
     PIIX4PMState *s = PIIX4_PM(qdev);
-    int ret = acpi_pcihp_device_hotplug(&s->acpi_pci_hotplug, dev, state);
+    int ret = acpi_pcihp_device_hotplug(&s->acpi_pci_hotplug, PCI_DEVICE(dev),
+                                        state);
     if (ret < 0) {
         return ret;
     }
@@ -740,8 +741,8 @@ static void piix4_cpu_added_req(Notifier *n, void *opaque)
     piix4_cpu_hotplug_req(s, CPU(opaque), PLUG);
 }
 
-static int piix4_device_hotplug(DeviceState *qdev, PCIDevice *dev,
-                                PCIHotplugState state);
+static int piix4_device_hotplug(DeviceState *qdev, DeviceState *dev,
+                                HotplugState state);
 
 static void piix4_acpi_system_hot_add_init(MemoryRegion *parent,
                                            PCIBus *bus, PIIX4PMState *s)
@@ -788,21 +789,22 @@ static void disable_device(PIIX4PMState *s, int slot)
     s->pci0_status.down |= (1U << slot);
 }
 
-static int piix4_device_hotplug(DeviceState *qdev, PCIDevice *dev,
-				PCIHotplugState state)
+static int piix4_device_hotplug(DeviceState *qdev, DeviceState *dev,
+                                HotplugState state)
 {
-    int slot = PCI_SLOT(dev->devfn);
+    PCIDevice *d = PCI_DEVICE(dev);
+    int slot = PCI_SLOT(d->devfn);
     PIIX4PMState *s = PIIX4_PM(qdev);
 
     /* Don't send event when device is enabled during qemu machine creation:
      * it is present on boot, no hotplug event is necessary. We do send an
      * event when the device is disabled later. */
-    if (state == PCI_COLDPLUG_ENABLED) {
+    if (state == COLDPLUG_ENABLED) {
         s->pci0_slot_device_present |= (1U << slot);
         return 0;
     }
 
-    if (state == PCI_HOTPLUG_ENABLED) {
+    if (state == HOTPLUG_ENABLED) {
         enable_device(s, slot);
     } else {
         disable_device(s, slot);
diff --git a/hw/pci/pci.c b/hw/pci/pci.c
index 31165cf..0713a1b 100644
--- a/hw/pci/pci.c
+++ b/hw/pci/pci.c
@@ -346,7 +346,7 @@ void pci_bus_irqs(PCIBus *bus, pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
     bus->irq_count = g_malloc0(nirq * sizeof(bus->irq_count[0]));
 }
 
-void pci_bus_hotplug(PCIBus *bus, pci_hotplug_fn hotplug, DeviceState *qdev)
+void pci_bus_hotplug(PCIBus *bus, hotplug_fn hotplug, DeviceState *qdev)
 {
     bus->qbus.allow_hotplug = 1;
     bus->hotplug = hotplug;
@@ -1779,9 +1779,9 @@ static int pci_qdev_init(DeviceState *qdev)
     if (bus->hotplug) {
         /* Let buses differentiate between hotplug and when device is
          * enabled during qemu machine creation. */
-        rc = bus->hotplug(bus->hotplug_qdev, pci_dev,
-                          qdev->hotplugged ? PCI_HOTPLUG_ENABLED:
-                          PCI_COLDPLUG_ENABLED);
+        rc = bus->hotplug(bus->hotplug_qdev, DEVICE(pci_dev),
+                          qdev->hotplugged ? HOTPLUG_ENABLED :
+                          COLDPLUG_ENABLED);
         if (rc != 0) {
             int r = pci_unregister_device(&pci_dev->qdev);
             assert(!r);
@@ -1800,8 +1800,8 @@ static int pci_unplug_device(DeviceState *qdev)
         qerror_report(QERR_DEVICE_NO_HOTPLUG, object_get_typename(OBJECT(dev)));
         return -1;
     }
-    return dev->bus->hotplug(dev->bus->hotplug_qdev, dev,
-                             PCI_HOTPLUG_DISABLED);
+    return dev->bus->hotplug(dev->bus->hotplug_qdev, qdev,
+                             HOTPLUG_DISABLED);
 }
 
 PCIDevice *pci_create_multifunction(PCIBus *bus, int devfn, bool multifunction,
diff --git a/hw/pci/pcie.c b/hw/pci/pcie.c
index ca60cf2..64500c1 100644
--- a/hw/pci/pcie.c
+++ b/hw/pci/pcie.c
@@ -217,16 +217,17 @@ static void pcie_cap_slot_event(PCIDevice *dev, PCIExpressHotPlugEvent event)
 }
 
 static int pcie_cap_slot_hotplug(DeviceState *qdev,
-                                 PCIDevice *pci_dev, PCIHotplugState state)
+                                 DeviceState *dev, HotplugState state)
 {
     PCIDevice *d = PCI_DEVICE(qdev);
+    PCIDevice *pci_dev = PCI_DEVICE(dev);
     uint8_t *exp_cap = d->config + d->exp.exp_cap;
     uint16_t sltsta = pci_get_word(exp_cap + PCI_EXP_SLTSTA);
 
     /* Don't send event when device is enabled during qemu machine creation:
      * it is present on boot, no hotplug event is necessary. We do send an
      * event when the device is disabled later. */
-    if (state == PCI_COLDPLUG_ENABLED) {
+    if (state == COLDPLUG_ENABLED) {
         pci_word_test_and_set_mask(exp_cap + PCI_EXP_SLTSTA,
                                    PCI_EXP_SLTSTA_PDS);
         return 0;
@@ -246,7 +247,7 @@ static int pcie_cap_slot_hotplug(DeviceState *qdev,
      */
     assert(PCI_FUNC(pci_dev->devfn) == 0);
 
-    if (state == PCI_HOTPLUG_ENABLED) {
+    if (state == HOTPLUG_ENABLED) {
         pci_word_test_and_set_mask(exp_cap + PCI_EXP_SLTSTA,
                                    PCI_EXP_SLTSTA_PDS);
         pcie_cap_slot_event(d, PCI_EXP_HP_EV_PDC);
diff --git a/hw/pci/shpc.c b/hw/pci/shpc.c
index 576244b..e7efe63 100644
--- a/hw/pci/shpc.c
+++ b/hw/pci/shpc.c
@@ -491,9 +491,10 @@ static const MemoryRegionOps shpc_mmio_ops = {
     },
 };
 
-static int shpc_device_hotplug(DeviceState *qdev, PCIDevice *affected_dev,
-                               PCIHotplugState hotplug_state)
+static int shpc_device_hotplug(DeviceState *qdev, DeviceState *dev,
+                               HotplugState hotplug_state)
 {
+    PCIDevice *affected_dev = PCI_DEVICE(dev);
     int pci_slot = PCI_SLOT(affected_dev->devfn);
     uint8_t state;
     uint8_t led;
@@ -510,13 +511,13 @@ static int shpc_device_hotplug(DeviceState *qdev, PCIDevice *affected_dev,
     /* Don't send event when device is enabled during qemu machine creation:
      * it is present on boot, no hotplug event is necessary. We do send an
      * event when the device is disabled later. */
-    if (hotplug_state == PCI_COLDPLUG_ENABLED) {
+    if (hotplug_state == COLDPLUG_ENABLED) {
         shpc_set_status(shpc, slot, 0, SHPC_SLOT_STATUS_MRL_OPEN);
         shpc_set_status(shpc, slot, SHPC_SLOT_STATUS_PRSNT_7_5W,
                         SHPC_SLOT_STATUS_PRSNT_MASK);
         return 0;
     }
-    if (hotplug_state == PCI_HOTPLUG_DISABLED) {
+    if (hotplug_state == HOTPLUG_DISABLED) {
         shpc->config[SHPC_SLOT_EVENT_LATCH(slot)] |= SHPC_SLOT_EVENT_BUTTON;
         state = shpc_get_status(shpc, slot, SHPC_SLOT_STATE_MASK);
         led = shpc_get_status(shpc, slot, SHPC_SLOT_PWR_LED_MASK);
diff --git a/include/hw/acpi/pcihp.h b/include/hw/acpi/pcihp.h
index 6230e60..aa16bff 100644
--- a/include/hw/acpi/pcihp.h
+++ b/include/hw/acpi/pcihp.h
@@ -53,7 +53,7 @@ void acpi_pcihp_init(AcpiPciHpState *, PCIBus *root,
 
 /* Invoke on device hotplug */
 int acpi_pcihp_device_hotplug(AcpiPciHpState *, PCIDevice *,
-                              PCIHotplugState state);
+                              HotplugState state);
 
 /* Called on reset */
 void acpi_pcihp_reset(AcpiPciHpState *s);
diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h
index 81fdddc..0eb89be 100644
--- a/include/hw/pci/pci.h
+++ b/include/hw/pci/pci.h
@@ -330,15 +330,6 @@ typedef void (*pci_set_irq_fn)(void *opaque, int irq_num, int level);
 typedef int (*pci_map_irq_fn)(PCIDevice *pci_dev, int irq_num);
 typedef PCIINTxRoute (*pci_route_irq_fn)(void *opaque, int pin);
 
-typedef enum {
-    PCI_HOTPLUG_DISABLED,
-    PCI_HOTPLUG_ENABLED,
-    PCI_COLDPLUG_ENABLED,
-} PCIHotplugState;
-
-typedef int (*pci_hotplug_fn)(DeviceState *qdev, PCIDevice *pci_dev,
-                              PCIHotplugState state);
-
 #define TYPE_PCI_BUS "PCI"
 #define PCI_BUS(obj) OBJECT_CHECK(PCIBus, (obj), TYPE_PCI_BUS)
 #define TYPE_PCIE_BUS "PCIE"
@@ -357,7 +348,7 @@ PCIBus *pci_bus_new(DeviceState *parent, const char *name,
 void pci_bus_irqs(PCIBus *bus, pci_set_irq_fn set_irq, pci_map_irq_fn map_irq,
                   void *irq_opaque, int nirq);
 int pci_bus_get_irq_level(PCIBus *bus, int irq_num);
-void pci_bus_hotplug(PCIBus *bus, pci_hotplug_fn hotplug, DeviceState *dev);
+void pci_bus_hotplug(PCIBus *bus, hotplug_fn hotplug, DeviceState *dev);
 /* 0 <= pin <= 3 0 = INTA, 1 = INTB, 2 = INTC, 3 = INTD */
 int pci_swizzle_map_irq_fn(PCIDevice *pci_dev, int pin);
 PCIBus *pci_register_bus(DeviceState *parent, const char *name,
diff --git a/include/hw/pci/pci_bus.h b/include/hw/pci/pci_bus.h
index 9df1788..ac5eb6a 100644
--- a/include/hw/pci/pci_bus.h
+++ b/include/hw/pci/pci_bus.h
@@ -16,7 +16,7 @@ struct PCIBus {
     pci_set_irq_fn set_irq;
     pci_map_irq_fn map_irq;
     pci_route_irq_fn route_intx_to_irq;
-    pci_hotplug_fn hotplug;
+    hotplug_fn hotplug;
     DeviceState *hotplug_qdev;
     void *irq_opaque;
     PCIDevice *devices[PCI_SLOT_MAX * PCI_FUNC_MAX];
diff --git a/include/hw/qdev-core.h b/include/hw/qdev-core.h
index f2043a6..1eb2028 100644
--- a/include/hw/qdev-core.h
+++ b/include/hw/qdev-core.h
@@ -307,4 +307,13 @@ extern int qdev_hotplug;
 
 char *qdev_get_dev_path(DeviceState *dev);
 
+typedef enum {
+    HOTPLUG_DISABLED,
+    HOTPLUG_ENABLED,
+    COLDPLUG_ENABLED,
+} HotplugState;
+
+typedef int (*hotplug_fn)(DeviceState *hotplug_dev, DeviceState *dev,
+                          HotplugState state);
+
 #endif
-- 
1.7.1