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| author | Greg Kurz | 2019-04-05 18:30:48 +0200 |
|---|---|---|
| committer | David Gibson | 2019-04-26 03:37:57 +0200 |
| commit | e8ec4adfe2de8603e271e38b0d50d7d453c0c21b (patch) | |
| tree | 00c0589c268493c8da2e6523872497319e424ce7 /include/hw/pci | |
| parent | spapr_pci: Get rid of duplicate code for node name creation (diff) | |
| download | qemu-e8ec4adfe2de8603e271e38b0d50d7d453c0c21b.tar.gz qemu-e8ec4adfe2de8603e271e38b0d50d7d453c0c21b.tar.xz qemu-e8ec4adfe2de8603e271e38b0d50d7d453c0c21b.zip | |
spapr: Drop duplicate PCI swizzle code
LSI mapping in spapr currently open-codes standard PCI swizzling. It thus
duplicates the code of pci_swizzle_map_irq_fn().
Expose the swizzling formula so that it can be used with a slot number
when building the device tree. Simply drop pci_spapr_map_irq() and call
pci_swizzle_map_irq_fn() instead.
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <155448184841.8446.13959787238854054119.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'include/hw/pci')
| -rw-r--r-- | include/hw/pci/pci.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index 0abb06b357..fdd4c43d3a 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -413,6 +413,10 @@ void pci_bus_irqs(PCIBus *bus, pci_set_irq_fn set_irq, pci_map_irq_fn map_irq, void pci_bus_irqs_cleanup(PCIBus *bus); int pci_bus_get_irq_level(PCIBus *bus, int irq_num); /* 0 <= pin <= 3 0 = INTA, 1 = INTB, 2 = INTC, 3 = INTD */ +static inline int pci_swizzle(int slot, int pin) +{ + return (slot + pin) % PCI_NUM_PINS; +} int pci_swizzle_map_irq_fn(PCIDevice *pci_dev, int pin); PCIBus *pci_register_root_bus(DeviceState *parent, const char *name, pci_set_irq_fn set_irq, pci_map_irq_fn map_irq, |