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authorThomas Bogendoerfer <tbogendoerfer@suse.de>2019-02-19 16:57:20 +0100
committerPaul Burton <paul.burton@mips.com>2019-02-19 12:46:03 -0800
commit69a07a41d908f9df48393bbab179daded8cfab66 (patch)
tree6764897f28cee05ecd539010ce61c4138b3bfdc5 /arch/mips/pci
parent2c8656204742a5e2d373972b139d0cc26ae93ff0 (diff)
MIPS: SGI-IP27: rework HUB interrupts
This commit rearranges the HUB interrupt code by using MIPS_IRQ_CPU interrupt handling code and modern Linux IRQ framework features to get rid of global arrays. It also adds support for irq affinity setting. Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
Diffstat (limited to 'arch/mips/pci')
-rw-r--r--arch/mips/pci/pci-ip27.c18
1 files changed, 1 insertions, 17 deletions
diff --git a/arch/mips/pci/pci-ip27.c b/arch/mips/pci/pci-ip27.c
index 7cf50290a6d9..3c177b4d0609 100644
--- a/arch/mips/pci/pci-ip27.c
+++ b/arch/mips/pci/pci-ip27.c
@@ -24,22 +24,11 @@
#define MAX_PCI_BUSSES 40
/*
- * Max #PCI devices (like scsi controllers) we handle on a bus.
- */
-#define MAX_DEVICES_PER_PCIBUS 8
-
-/*
* XXX: No kmalloc available when we do our crosstalk scan,
* we should try to move it later in the boot process.
*/
static struct bridge_controller bridges[MAX_PCI_BUSSES];
-/*
- * Translate from irq to software PCI bus number and PCI slot.
- */
-struct bridge_controller *irq_to_bridge[MAX_PCI_BUSSES * MAX_DEVICES_PER_PCIBUS];
-int irq_to_slot[MAX_PCI_BUSSES * MAX_DEVICES_PER_PCIBUS];
-
extern struct pci_ops bridge_pci_ops;
int bridge_probe(nasid_t nasid, int widget_id, int masterwid)
@@ -77,7 +66,6 @@ int bridge_probe(nasid_t nasid, int widget_id, int masterwid)
bc->io.end = ~0UL;
bc->io.flags = IORESOURCE_IO;
- bc->irq_cpu = smp_processor_id();
bc->widget_id = widget_id;
bc->nasid = nasid;
@@ -165,16 +153,12 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
irq = bc->pci_int[slot];
if (irq == -1) {
- irq = request_bridge_irq(bc);
+ irq = request_bridge_irq(bc, slot);
if (irq < 0)
return irq;
bc->pci_int[slot] = irq;
}
-
- irq_to_bridge[irq] = bc;
- irq_to_slot[irq] = slot;
-
dev->irq = irq;
return 0;