Add isa_reserve_irq().

Introduce isa_reserve_irq() which marks an irq reserved and returns
the appropriate qemu_irq entry from the i8259 table.

isa_reserve_irq() is a temporary interface to be used to allocate ISA
IRQs for devices which have not yet been converted to qdev, and for
special cases which are not suited for qdev conversions, such as the
'ferr'.

This patch goes on top of Gerd Hoffmann's which makes isa-bus.c own
the ISA irq table.

[ added isa-bus.o to some targets to fix build failures  -- kraxel ]

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

1 files changed, 14 insertions, 10 deletions

diff --git a/hw/pc.c b/hw/pc.c
index abb735622..915e69191 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -1043,13 +1043,14 @@ static void audio_init (PCIBus *pci_bus, qemu_irq *pic)
 }
 #endif
 
-static void pc_init_ne2k_isa(NICInfo *nd, qemu_irq *pic)
+static void pc_init_ne2k_isa(NICInfo *nd)
 {
     static int nb_ne2k = 0;
 
     if (nb_ne2k == NE2000_NB_MAX)
         return;
-    isa_ne2000_init(ne2000_io[nb_ne2k], pic[ne2000_irq[nb_ne2k]], nd);
+    isa_ne2000_init(ne2000_io[nb_ne2k],
+                    isa_reserve_irq(ne2000_irq[nb_ne2k]), nd);
     nb_ne2k++;
 }
 
@@ -1276,7 +1277,6 @@ static void pc_init1(ram_addr_t ram_size,
     isa_irq_state = qemu_mallocz(sizeof(*isa_irq_state));
     isa_irq_state->i8259 = i8259;
     isa_irq = qemu_allocate_irqs(isa_irq_handler, isa_irq_state, 24);
-    ferr_irq = isa_irq[13];
 
     if (pci_enabled) {
         pci_bus = i440fx_init(&i440fx_state, isa_irq);
@@ -1287,6 +1287,8 @@ static void pc_init1(ram_addr_t ram_size,
     }
     isa_bus_irqs(isa_irq);
 
+    ferr_irq = isa_reserve_irq(13);
+
     /* init basic PC hardware */
     register_ioport_write(0x80, 1, 1, ioport80_write, NULL);
 
@@ -1311,7 +1313,7 @@ static void pc_init1(ram_addr_t ram_size,
         }
     }
 
-    rtc_state = rtc_init(0x70, isa_irq[8], 2000);
+    rtc_state = rtc_init(0x70, isa_reserve_irq(8), 2000);
 
     qemu_register_boot_set(pc_boot_set, rtc_state);
 
@@ -1321,7 +1323,7 @@ static void pc_init1(ram_addr_t ram_size,
     if (pci_enabled) {
         isa_irq_state->ioapic = ioapic_init();
     }
-    pit = pit_init(0x40, isa_irq[0]);
+    pit = pit_init(0x40, isa_reserve_irq(0));
     pcspk_init(pit);
     if (!no_hpet) {
         hpet_init(isa_irq);
@@ -1329,14 +1331,14 @@ static void pc_init1(ram_addr_t ram_size,
 
     for(i = 0; i < MAX_SERIAL_PORTS; i++) {
         if (serial_hds[i]) {
-            serial_init(serial_io[i], isa_irq[serial_irq[i]], 115200,
+            serial_init(serial_io[i], isa_reserve_irq(serial_irq[i]), 115200,
                         serial_hds[i]);
         }
     }
 
     for(i = 0; i < MAX_PARALLEL_PORTS; i++) {
         if (parallel_hds[i]) {
-            parallel_init(parallel_io[i], isa_irq[parallel_irq[i]],
+            parallel_init(parallel_io[i], isa_reserve_irq(parallel_irq[i]),
                           parallel_hds[i]);
         }
     }
@@ -1347,7 +1349,7 @@ static void pc_init1(ram_addr_t ram_size,
         NICInfo *nd = &nd_table[i];
 
         if (!pci_enabled || (nd->model && strcmp(nd->model, "ne2k_isa") == 0))
-            pc_init_ne2k_isa(nd, isa_irq);
+            pc_init_ne2k_isa(nd);
         else
             pci_nic_init(nd, "e1000", NULL);
     }
@@ -1368,7 +1370,8 @@ static void pc_init1(ram_addr_t ram_size,
         pci_piix3_ide_init(pci_bus, hd, piix3_devfn + 1, isa_irq);
     } else {
         for(i = 0; i < MAX_IDE_BUS; i++) {
-            isa_ide_init(ide_iobase[i], ide_iobase2[i], isa_irq[ide_irq[i]],
+            isa_ide_init(ide_iobase[i], ide_iobase2[i],
+                         isa_reserve_irq(ide_irq[i]),
 	                 hd[MAX_IDE_DEVS * i], hd[MAX_IDE_DEVS * i + 1]);
         }
     }
@@ -1398,7 +1401,8 @@ static void pc_init1(ram_addr_t ram_size,
         i2c_bus *smbus;
 
         /* TODO: Populate SPD eeprom data.  */
-        smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100, isa_irq[9]);
+        smbus = piix4_pm_init(pci_bus, piix3_devfn + 3, 0xb100,
+                              isa_reserve_irq(9));
         for (i = 0; i < 8; i++) {
             DeviceState *eeprom;
             eeprom = qdev_create((BusState *)smbus, "smbus-eeprom");