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[Qemu-devel] [PATCHv2 04/15] sun4u: remove pci_ebus_init() function
From: |
Mark Cave-Ayland |
Subject: |
[Qemu-devel] [PATCHv2 04/15] sun4u: remove pci_ebus_init() function |
Date: |
Sun, 26 Nov 2017 12:34:35 +0000 |
This is initialisation that should really take place in the ebus realize
function. As part of this we also rework the ebus IRQ mapping so that
instead of having to pass in the array of pbm_irqs, we obtain a reference
to them by looking up the APB device during ebus realize.
Signed-off-by: Mark Cave-Ayland <address@hidden>
Reviewed-by: Artyom Tarasenko <address@hidden>
Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
---
hw/pci-host/apb.c | 4 +---
hw/sparc64/sun4u.c | 29 ++++++++++++++---------------
include/hw/pci-host/apb.h | 3 +--
3 files changed, 16 insertions(+), 20 deletions(-)
diff --git a/hw/pci-host/apb.c b/hw/pci-host/apb.c
index f743a4e..b0f80f6 100644
--- a/hw/pci-host/apb.c
+++ b/hw/pci-host/apb.c
@@ -614,8 +614,7 @@ static void apb_pci_bridge_realize(PCIDevice *dev, Error
**errp)
PCIBus *pci_apb_init(hwaddr special_base,
hwaddr mem_base,
- qemu_irq *ivec_irqs, PCIBus **busA, PCIBus **busB,
- qemu_irq **pbm_irqs)
+ qemu_irq *ivec_irqs, PCIBus **busA, PCIBus **busB)
{
DeviceState *dev;
SysBusDevice *s;
@@ -646,7 +645,6 @@ PCIBus *pci_apb_init(hwaddr special_base,
memory_region_init(&d->pci_mmio, OBJECT(s), "pci-mmio", 0x100000000ULL);
memory_region_add_subregion(get_system_memory(), mem_base, &d->pci_mmio);
- *pbm_irqs = d->pbm_irqs;
d->ivec_irqs = ivec_irqs;
pci_create_simple(phb->bus, 0, "pbm-pci");
diff --git a/hw/sparc64/sun4u.c b/hw/sparc64/sun4u.c
index 63b4aaa..f3203ea 100644
--- a/hw/sparc64/sun4u.c
+++ b/hw/sparc64/sun4u.c
@@ -230,21 +230,11 @@ static void isa_irq_handler(void *opaque, int n, int
level)
}
/* EBUS (Eight bit bus) bridge */
-static ISABus *
-pci_ebus_init(PCIDevice *pci_dev, qemu_irq *irqs)
-{
- qemu_irq *isa_irq;
- ISABus *isa_bus;
-
- isa_bus = ISA_BUS(qdev_get_child_bus(DEVICE(pci_dev), "isa.0"));
- isa_irq = qemu_allocate_irqs(isa_irq_handler, irqs, 16);
- isa_bus_irqs(isa_bus, isa_irq);
- return isa_bus;
-}
-
static void ebus_realize(PCIDevice *pci_dev, Error **errp)
{
EbusState *s = EBUS(pci_dev);
+ APBState *apb;
+ qemu_irq *isa_irq;
s->isa_bus = isa_bus_new(DEVICE(pci_dev), get_system_memory(),
pci_address_space_io(pci_dev), errp);
@@ -253,6 +243,15 @@ static void ebus_realize(PCIDevice *pci_dev, Error **errp)
return;
}
+ apb = APB_DEVICE(object_resolve_path_type("", TYPE_APB, NULL));
+ if (!apb) {
+ error_setg(errp, "unable to locate APB PCI host bridge");
+ return;
+ }
+
+ isa_irq = qemu_allocate_irqs(isa_irq_handler, apb->pbm_irqs, 16);
+ isa_bus_irqs(s->isa_bus, isa_irq);
+
pci_dev->config[0x04] = 0x06; // command = bus master, pci mem
pci_dev->config[0x05] = 0x00;
pci_dev->config[0x06] = 0xa0; // status = fast back-to-back, 66MHz, no
error
@@ -443,7 +442,7 @@ static void sun4uv_init(MemoryRegion *address_space_mem,
PCIDevice *ebus, *pci_dev;
ISABus *isa_bus;
SysBusDevice *s;
- qemu_irq *ivec_irqs, *pbm_irqs;
+ qemu_irq *ivec_irqs;
DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
DriveInfo *fd[MAX_FD];
DeviceState *dev;
@@ -462,7 +461,7 @@ static void sun4uv_init(MemoryRegion *address_space_mem,
ivec_irqs = qemu_allocate_irqs(sparc64_cpu_set_ivec_irq, cpu, IVEC_MAX);
pci_bus = pci_apb_init(APB_SPECIAL_BASE, APB_MEM_BASE, ivec_irqs,
&pci_busA,
- &pci_busB, &pbm_irqs);
+ &pci_busB);
/* Only in-built Simba PBMs can exist on the root bus, slot 0 on busA is
reserved (leaving no slots free after on-board devices) however slots
@@ -474,7 +473,7 @@ static void sun4uv_init(MemoryRegion *address_space_mem,
ebus = pci_create_multifunction(pci_busA, PCI_DEVFN(1, 0), true,
TYPE_EBUS);
qdev_init_nofail(DEVICE(ebus));
- isa_bus = pci_ebus_init(ebus, pbm_irqs);
+ isa_bus = EBUS(ebus)->isa_bus;
i = 0;
if (hwdef->console_serial_base) {
diff --git a/include/hw/pci-host/apb.h b/include/hw/pci-host/apb.h
index 5d39c03..35d7d5a 100644
--- a/include/hw/pci-host/apb.h
+++ b/include/hw/pci-host/apb.h
@@ -91,6 +91,5 @@ typedef struct PBMPCIBridge {
PCIBus *pci_apb_init(hwaddr special_base,
hwaddr mem_base,
- qemu_irq *ivec_irqs, PCIBus **bus2, PCIBus **bus3,
- qemu_irq **pbm_irqs);
+ qemu_irq *ivec_irqs, PCIBus **bus2, PCIBus **bus3);
#endif
--
1.7.10.4
- [Qemu-devel] [PATCHv2 00/15] sun4u: tidy-up CPU, APB and ebus, Mark Cave-Ayland, 2017/11/26
- [Qemu-devel] [PATCHv2 02/15] sun4u: ebus QOMify tidy-up, Mark Cave-Ayland, 2017/11/26
- [Qemu-devel] [PATCHv2 04/15] sun4u: remove pci_ebus_init() function,
Mark Cave-Ayland <=
- [Qemu-devel] [PATCHv2 05/15] sun4u: move initialisation of all ISABus devices into ebus_realize(), Mark Cave-Ayland, 2017/11/26
- [Qemu-devel] [PATCHv2 07/15] apb: return APBState from pci_apb_init() rather than PCIBus, Mark Cave-Ayland, 2017/11/26
- [Qemu-devel] [PATCHv2 01/15] apb: move QOM macros and typedefs from apb.c to apb.h, Mark Cave-Ayland, 2017/11/26
- [Qemu-devel] [PATCHv2 08/15] apb: use gpios to wire up the apb device to the SPARC CPU IRQs, Mark Cave-Ayland, 2017/11/26
- [Qemu-devel] [PATCHv2 03/15] sun4u: move ISABus inside of EBusState, Mark Cave-Ayland, 2017/11/26
- [Qemu-devel] [PATCHv2 09/15] apb: move the two secondary PCI bridges objects into APBState, Mark Cave-Ayland, 2017/11/26
- [Qemu-devel] [PATCHv2 06/15] apb: APB QOMify tidy-up, Mark Cave-Ayland, 2017/11/26
- [Qemu-devel] [PATCHv2 11/15] apb: split pci_pbm_map_irq() into separate functions for bus A and bus B, Mark Cave-Ayland, 2017/11/26
- [Qemu-devel] [PATCHv2 13/15] apb: replace OBIO interrupt numbers in pci_pbmA_map_irq() with constants, Mark Cave-Ayland, 2017/11/26
- [Qemu-devel] [PATCHv2 14/15] sparc64: introduce trace-events for hw/sparc64, Mark Cave-Ayland, 2017/11/26