hw: set interrupts using pci irq wrappers

pci_set_irq and the other pci irq wrappers use
PCI_INTERRUPT_PIN config register to compute device
INTx pin to assert/deassert.

An irq is allocated using pci_allocate_irq wrapper
only if is needed by non pci devices.

Removed irq related fields from state if not used anymore.
Signed-off-by: NMarcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>

hw/audio/ac97.c

@@ -280,12 +280,12 @@ static void update_sr (AC97LinkState *s, AC97BusMasterRegs *r, uint32_t new_sr)
     if (level) {
         s->glob_sta |= masks[r - s->bm_regs];
         dolog ("set irq level=1\n");
-        qemu_set_irq (s->dev.irq[0], 1);
+        pci_irq_assert(&s->dev);
     }
     else {
         s->glob_sta &= ~masks[r - s->bm_regs];
         dolog ("set irq level=0\n");
-        qemu_set_irq (s->dev.irq[0], 0);
+        pci_irq_deassert(&s->dev);
     }
 }
 

hw/audio/es1370.c

@@ -323,7 +323,7 @@ static void es1370_update_status (ES1370State *s, uint32_t new_status)
     else {
         s->status = new_status & ~STAT_INTR;
     }
-    qemu_set_irq (s->dev.irq[0], !!level);
+    pci_set_irq(&s->dev, !!level);
 }
 
 static void es1370_reset (ES1370State *s)
@@ -349,7 +349,7 @@ static void es1370_reset (ES1370State *s)
             s->dac_voice[i] = NULL;
         }
     }
-    qemu_irq_lower (s->dev.irq[0]);
+    pci_irq_deassert(&s->dev);
 }
 
 static void es1370_maybe_lower_irq (ES1370State *s, uint32_t sctl)

hw/audio/intel-hda.c

@@ -269,7 +269,7 @@ static void intel_hda_update_irq(IntelHDAState *d)
             msi_notify(&d->pci, 0);
         }
     } else {
-        qemu_set_irq(d->pci.irq[0], level);
+        pci_set_irq(&d->pci, level);
     }
 }
 

hw/block/nvme.c

@@ -69,7 +69,7 @@ static void nvme_isr_notify(NvmeCtrl *n, NvmeCQueue *cq)
         if (msix_enabled(&(n->parent_obj))) {
             msix_notify(&(n->parent_obj), cq->vector);
         } else {
-            qemu_irq_pulse(n->parent_obj.irq[0]);
+            pci_irq_pulse(&n->parent_obj);
         }
     }
 }

hw/char/serial-pci.c

@@ -61,7 +61,7 @@ static int serial_pci_init(PCIDevice *dev)
     }
 
     pci->dev.config[PCI_INTERRUPT_PIN] = 0x01;
-    s->irq = pci->dev.irq[0];
+    s->irq = pci_allocate_irq(&pci->dev);
 
     memory_region_init_io(&s->io, OBJECT(pci), &serial_io_ops, s, "serial", 8);
     pci_register_bar(&pci->dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &s->io);
@@ -79,7 +79,7 @@ static void multi_serial_irq_mux(void *opaque, int n, int level)
             pending = 1;
         }
     }
-    qemu_set_irq(pci->dev.irq[0], pending);
+    pci_set_irq(&pci->dev, pending);
 }
 
 static int multi_serial_pci_init(PCIDevice *dev)
@@ -132,6 +132,7 @@ static void serial_pci_exit(PCIDevice *dev)
 
     serial_exit_core(s);
     memory_region_destroy(&s->io);
+    qemu_free_irq(s->irq);
 }
 
 static void multi_serial_pci_exit(PCIDevice *dev)

hw/char/tpci200.c

@@ -134,8 +134,8 @@ static void tpci200_set_irq(void *opaque, int intno, int level)
     /* Check if the interrupt is edge sensitive */
     if (dev->ctrl[ip_n] & CTRL_INT_EDGE(intno)) {
         if (level) {
-            qemu_set_irq(dev->dev.irq[0], !dev->int_set);
-            qemu_set_irq(dev->dev.irq[0],  dev->int_set);
+            pci_set_irq(&dev->dev, !dev->int_set);
+            pci_set_irq(&dev->dev,  dev->int_set);
         }
     } else {
         unsigned i, j;
@@ -153,10 +153,10 @@ static void tpci200_set_irq(void *opaque, int intno, int level)
         }
 
         if (level_status && !dev->int_set) {
-            qemu_irq_raise(dev->dev.irq[0]);
+            pci_irq_assert(&dev->dev);
             dev->int_set = 1;
         } else if (!level_status && dev->int_set) {
-            qemu_irq_lower(dev->dev.irq[0]);
+            pci_irq_deassert(&dev->dev);
             dev->int_set = 0;
         }
     }

hw/display/qxl.c

@@ -1103,7 +1103,7 @@ static void qxl_update_irq(PCIQXLDevice *d)
     uint32_t pending = le32_to_cpu(d->ram->int_pending);
     uint32_t mask    = le32_to_cpu(d->ram->int_mask);
     int level = !!(pending & mask);
-    qemu_set_irq(d->pci.irq[0], level);
+    pci_set_irq(&d->pci, level);
     qxl_ring_set_dirty(d);
 }
 

hw/ide/cmd646.c

@@ -230,7 +230,7 @@ static void cmd646_update_irq(PCIIDEState *d)
                  !(pd->config[MRDMODE] & MRDMODE_BLK_CH0)) ||
         ((pd->config[MRDMODE] & MRDMODE_INTR_CH1) &&
          !(pd->config[MRDMODE] & MRDMODE_BLK_CH1));
-    qemu_set_irq(pd->irq[0], pci_level);
+    pci_set_irq(pd, pci_level);
 }
 
 /* the PCI irq level is the logical OR of the two channels */

hw/ide/ich.c

@@ -116,7 +116,7 @@ static int pci_ich9_ahci_init(PCIDevice *dev)
     dev->config[0x90]   = 1 << 6; /* Address Map Register - AHCI mode */
 
     msi_init(dev, 0x50, 1, true, false);
-    d->ahci.irq = dev->irq[0];
+    d->ahci.irq = pci_allocate_irq(dev);
 
     pci_register_bar(dev, ICH9_IDP_BAR, PCI_BASE_ADDRESS_SPACE_IO,
                      &d->ahci.idp);
@@ -145,6 +145,7 @@ static void pci_ich9_uninit(PCIDevice *dev)
 
     msi_uninit(dev);
     ahci_uninit(&d->ahci);
+    qemu_free_irq(d->ahci.irq);
 }
 
 static void ich_ahci_class_init(ObjectClass *klass, void *data)

hw/isa/vt82c686.c

@@ -185,7 +185,7 @@ static void pm_update_sci(VT686PMState *s)
                    ACPI_BITMASK_POWER_BUTTON_ENABLE |
                    ACPI_BITMASK_GLOBAL_LOCK_ENABLE |
                    ACPI_BITMASK_TIMER_ENABLE)) != 0);
-    qemu_set_irq(s->dev.irq[0], sci_level);
+    pci_set_irq(&s->dev, sci_level);
     /* schedule a timer interruption if needed */
     acpi_pm_tmr_update(&s->ar, (s->ar.pm1.evt.en & ACPI_BITMASK_TIMER_ENABLE) &&
                        !(pmsts & ACPI_BITMASK_TIMER_STATUS));

hw/misc/ivshmem.c

@@ -133,7 +133,7 @@ static void ivshmem_update_irq(IVShmemState *s, int val)
            isr ? 1 : 0, s->intrstatus, s->intrmask);
     }
 
-    qemu_set_irq(d->irq[0], (isr != 0));
+    pci_set_irq(d, (isr != 0));
 }
 
 static void ivshmem_IntrMask_write(IVShmemState *s, uint32_t val)

hw/net/e1000.c

@@ -325,7 +325,7 @@ set_interrupt_cause(E1000State *s, int index, uint32_t val)
     }
 
     s->mit_irq_level = (pending_ints != 0);
-    qemu_set_irq(d->irq[0], s->mit_irq_level);
+    pci_set_irq(d, s->mit_irq_level);
 }
 
 static void

hw/net/eepro100.c

@@ -409,7 +409,7 @@ static void disable_interrupt(EEPRO100State * s)
 {
     if (s->int_stat) {
         TRACE(INT, logout("interrupt disabled\n"));
-        qemu_irq_lower(s->dev.irq[0]);
+        pci_irq_deassert(&s->dev);
         s->int_stat = 0;
     }
 }
@@ -418,7 +418,7 @@ static void enable_interrupt(EEPRO100State * s)
 {
     if (!s->int_stat) {
         TRACE(INT, logout("interrupt enabled\n"));
-        qemu_irq_raise(s->dev.irq[0]);
+        pci_irq_assert(&s->dev);
         s->int_stat = 1;
     }
 }

hw/net/ne2000.c

@@ -731,7 +731,7 @@ static int pci_ne2000_init(PCIDevice *pci_dev)
     s = &d->ne2000;
     ne2000_setup_io(s, DEVICE(pci_dev), 0x100);
     pci_register_bar(&d->dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &s->io);
-    s->irq = d->dev.irq[0];
+    s->irq = pci_allocate_irq(&d->dev);
 
     qemu_macaddr_default_if_unset(&s->c.macaddr);
     ne2000_reset(s);
@@ -752,6 +752,7 @@ static void pci_ne2000_exit(PCIDevice *pci_dev)
 
     memory_region_destroy(&s->io);
     qemu_del_nic(s->nic);
+    qemu_free_irq(s->irq);
 }
 
 static Property ne2000_properties[] = {

hw/net/pcnet-pci.c

@@ -282,6 +282,7 @@ static void pci_pcnet_uninit(PCIDevice *dev)
 {
     PCIPCNetState *d = PCI_PCNET(dev);
 
+    qemu_free_irq(d->state.irq);
     memory_region_destroy(&d->state.mmio);
     memory_region_destroy(&d->io_bar);
     timer_del(d->state.poll_timer);
@@ -331,7 +332,7 @@ static int pci_pcnet_init(PCIDevice *pci_dev)
 
     pci_register_bar(pci_dev, 1, 0, &s->mmio);
 
-    s->irq = pci_dev->irq[0];
+    s->irq = pci_allocate_irq(pci_dev);
     s->phys_mem_read = pci_physical_memory_read;
     s->phys_mem_write = pci_physical_memory_write;
     s->dma_opaque = pci_dev;

hw/net/rtl8139.c

@@ -716,7 +716,7 @@ static void rtl8139_update_irq(RTL8139State *s)
     DPRINTF("Set IRQ to %d (%04x %04x)\n", isr ? 1 : 0, s->IntrStatus,
         s->IntrMask);
 
-    qemu_set_irq(d->irq[0], (isr != 0));
+    pci_set_irq(d, (isr != 0));
 }
 
 static int rtl8139_RxWrap(RTL8139State *s)

hw/pci/shpc.c

@@ -172,7 +172,7 @@ static void shpc_interrupt_update(PCIDevice *d)
     if (msi_enabled(d) && shpc->msi_requested != level)
         msi_notify(d, 0);
     else
-        qemu_set_irq(d->irq[0], level);
+        pci_set_irq(d, level);
     shpc->msi_requested = level;
 }
 

hw/scsi/esp-pci.c

@@ -361,7 +361,7 @@ static int esp_pci_scsi_init(PCIDevice *dev)
                           "esp-io", 0x80);
 
     pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &pci->io);
-    s->irq = dev->irq[0];
+    s->irq = pci_allocate_irq(dev);
 
     scsi_bus_new(&s->bus, sizeof(s->bus), d, &esp_pci_scsi_info, NULL);
     if (!d->hotplugged) {
@@ -378,6 +378,7 @@ static void esp_pci_scsi_uninit(PCIDevice *d)
 {
     PCIESPState *pci = PCI_ESP(d);
 
+    qemu_free_irq(pci->esp.irq);
     memory_region_destroy(&pci->io);
 }
 

hw/scsi/lsi53c895a.c

@@ -433,7 +433,7 @@ static void lsi_update_irq(LSIState *s)
                 level, s->dstat, s->sist1, s->sist0);
         last_level = level;
     }
-    qemu_set_irq(d->irq[0], level);
+    pci_set_irq(d, level);
 
     if (!level && lsi_irq_on_rsl(s) && !(s->scntl1 & LSI_SCNTL1_CON)) {
         DPRINTF("Handled IRQs & disconnected, looking for pending "

hw/scsi/megasas.c

@@ -535,7 +535,7 @@ static void megasas_complete_frame(MegasasState *s, uint64_t context)
                 msix_notify(pci_dev, 0);
             } else {
                 trace_megasas_irq_raise();
-                qemu_irq_raise(pci_dev->irq[0]);
+                pci_irq_assert(pci_dev);
             }
         }
     } else {
@@ -1936,7 +1936,7 @@ static void megasas_mmio_write(void *opaque, hwaddr addr,
         s->intr_mask = val;
         if (!megasas_intr_enabled(s) && !msix_enabled(pci_dev)) {
             trace_megasas_irq_lower();
-            qemu_irq_lower(pci_dev->irq[0]);
+            pci_irq_deassert(pci_dev);
         }
         if (megasas_intr_enabled(s)) {
             trace_megasas_intr_enabled();
@@ -1952,7 +1952,7 @@ static void megasas_mmio_write(void *opaque, hwaddr addr,
             stl_le_phys(s->producer_pa, s->reply_queue_head);
             if (!msix_enabled(pci_dev)) {
                 trace_megasas_irq_lower();
-                qemu_irq_lower(pci_dev->irq[0]);
+                pci_irq_deassert(pci_dev);
             }
         }
         break;

hw/scsi/vmw_pvscsi.c

@@ -330,7 +330,7 @@ pvscsi_update_irq_status(PVSCSIState *s)
         return;
     }
 
-    qemu_set_irq(d->irq[0], !!should_raise);
+    pci_set_irq(d, !!should_raise);
 }
 
 static void

hw/usb/hcd-ehci-pci.c

@@ -60,7 +60,7 @@ static int usb_ehci_pci_initfn(PCIDevice *dev)
     pci_conf[0x6e] = 0x00;
     pci_conf[0x6f] = 0xc0;  /* USBLEFCTLSTS */
 
-    s->irq = dev->irq[3];
+    s->irq = pci_allocate_irq(dev);
     s->as = pci_get_address_space(dev);
 
     usb_ehci_realize(s, DEVICE(dev), NULL);

hw/usb/hcd-ohci.c

@@ -1944,7 +1944,7 @@ static int usb_ohci_initfn_pci(PCIDevice *dev)
                       pci_get_address_space(dev)) != 0) {
         return -1;
     }
-    ohci->state.irq = dev->irq[0];
+    ohci->state.irq = pci_allocate_irq(dev);
 
     pci_register_bar(dev, 0, 0, &ohci->state.mem);
     return 0;

hw/usb/hcd-uhci.c

@@ -164,7 +164,6 @@ struct UHCIState {
 
     /* Interrupts that should be raised at the end of the current frame.  */
     uint32_t pending_int_mask;
-    int irq_pin;
 
     /* Active packets */
     QTAILQ_HEAD(, UHCIQueue) queues;
@@ -381,7 +380,7 @@ static void uhci_update_irq(UHCIState *s)
     } else {
         level = 0;
     }
-    qemu_set_irq(s->dev.irq[s->irq_pin], level);
+    pci_set_irq(&s->dev, level);
 }
 
 static void uhci_reset(void *opaque)
@@ -1240,8 +1239,7 @@ static int usb_uhci_common_initfn(PCIDevice *dev)
     /* TODO: reset value should be 0. */
     pci_conf[USB_SBRN] = USB_RELEASE_1; // release number
 
-    s->irq_pin = u->info.irq_pin;
-    pci_config_set_interrupt_pin(pci_conf, s->irq_pin + 1);
+    pci_config_set_interrupt_pin(pci_conf, u->info.irq_pin + 1);
 
     if (s->masterbus) {
         USBPort *ports[NB_PORTS];

hw/usb/hcd-xhci.c

@@ -449,7 +449,6 @@ struct XHCIState {
     /*< public >*/
 
     USBBus bus;
-    qemu_irq irq;
     MemoryRegion mem;
     MemoryRegion mem_cap;
     MemoryRegion mem_oper;
@@ -737,7 +736,7 @@ static void xhci_intx_update(XHCIState *xhci)
     }
 
     trace_usb_xhci_irq_intx(level);
-    qemu_set_irq(xhci->irq, level);
+    pci_set_irq(pci_dev, level);
 }
 
 static void xhci_msix_update(XHCIState *xhci, int v)
@@ -795,7 +794,7 @@ static void xhci_intr_raise(XHCIState *xhci, int v)
 
     if (v == 0) {
         trace_usb_xhci_irq_intx(1);
-        qemu_set_irq(xhci->irq, 1);
+        pci_irq_assert(pci_dev);
     }
 }
 
@@ -3416,8 +3415,6 @@ static int usb_xhci_initfn(struct PCIDevice *dev)
 
     xhci->mfwrap_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, xhci_mfwrap_timer, xhci);
 
-    xhci->irq = dev->irq[0];
-
     memory_region_init(&xhci->mem, OBJECT(xhci), "xhci", LEN_REGS);
     memory_region_init_io(&xhci->mem_cap, OBJECT(xhci), &xhci_cap_ops, xhci,
                           "capabilities", LEN_CAP);

hw/virtio/virtio-pci.c

@@ -116,7 +116,7 @@ static void virtio_pci_notify(DeviceState *d, uint16_t vector)
     if (msix_enabled(&proxy->pci_dev))
         msix_notify(&proxy->pci_dev, vector);
     else
-        qemu_set_irq(proxy->pci_dev.irq[0], proxy->vdev->isr & 1);
+        pci_set_irq(&proxy->pci_dev, proxy->vdev->isr & 1);
 }
 
 static void virtio_pci_save_config(DeviceState *d, QEMUFile *f)
@@ -362,7 +362,7 @@ static uint32_t virtio_ioport_read(VirtIOPCIProxy *proxy, uint32_t addr)
         /* reading from the ISR also clears it. */
         ret = vdev->isr;
         vdev->isr = 0;
-        qemu_set_irq(proxy->pci_dev.irq[0], 0);
+        pci_irq_deassert(&proxy->pci_dev);
         break;
     case VIRTIO_MSI_CONFIG_VECTOR:
         ret = vdev->config_vector;