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| author | David S. Miller <davem@sunset.davemloft.net> | 2007-10-22 11:16:45 +0200 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-22 11:16:45 +0200 |
| commit | 8d57d3ad0c4641bc6b720160215c907a3d1004a0 (patch) | |
| tree | a2ea60d7d49344c74c41dde69ad07be5752dba55 /arch/sparc64/kernel/pci_msi.c | |
| parent | [SPARC64]: Update defconfig. (diff) | |
| download | linux-8d57d3ad0c4641bc6b720160215c907a3d1004a0.tar.xz linux-8d57d3ad0c4641bc6b720160215c907a3d1004a0.zip | |
[SPARC64]: Stop using __do_IRQ().
Invoke the desc->handle_irq directly in the top-level dispatch,
just like other sophisticated ports.
This will allow us to decrease the cost of the MSI queue dispatch.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64/kernel/pci_msi.c')
| -rw-r--r-- | arch/sparc64/kernel/pci_msi.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/sparc64/kernel/pci_msi.c b/arch/sparc64/kernel/pci_msi.c index 31a165fd3e48..d6d64b44af63 100644 --- a/arch/sparc64/kernel/pci_msi.c +++ b/arch/sparc64/kernel/pci_msi.c @@ -28,8 +28,15 @@ static irqreturn_t sparc64_msiq_interrupt(int irq, void *cookie) unsigned long msi; err = ops->dequeue_msi(pbm, msiqid, &head, &msi); - if (likely(err > 0)) - __do_IRQ(pbm->msi_irq_table[msi - pbm->msi_first]); + if (likely(err > 0)) { + struct irq_desc *desc; + unsigned int virt_irq; + + virt_irq = pbm->msi_irq_table[msi - pbm->msi_first]; + desc = irq_desc + virt_irq; + + desc->handle_irq(virt_irq, desc); + } if (unlikely(err < 0)) goto err_dequeue; @@ -128,7 +135,8 @@ int sparc64_setup_msi_irq(unsigned int *virt_irq_p, if (!*virt_irq_p) goto out_err; - set_irq_chip(*virt_irq_p, &msi_irq); + set_irq_chip_and_handler_name(*virt_irq_p, &msi_irq, + handle_simple_irq, "MSI"); err = alloc_msi(pbm); if (unlikely(err < 0)) |