[PATCH v1 20/21] tile/MSI: Use MSI chip framework to configure MSI/MSI-X irq
From: Yijing Wang <hidden>
Date: 2014-09-05 10:10:05
Also in:
linux-arch, linux-arm-kernel, linux-iommu, linux-mips, linux-pci, linux-s390, sparclinux
Subsystem:
the rest · Maintainer:
Linus Torvalds
Use MSI chip framework instead of arch MSI functions to configure MSI/MSI-X irq. So we can manage MSI/MSI-X irq in a unified framework. Signed-off-by: Yijing Wang <redacted> --- arch/tile/kernel/pci_gx.c | 14 ++++++++++++-- 1 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/arch/tile/kernel/pci_gx.c b/arch/tile/kernel/pci_gx.c
index e39f9c5..4912b75 100644
--- a/arch/tile/kernel/pci_gx.c
+++ b/arch/tile/kernel/pci_gx.c@@ -1485,7 +1485,7 @@ static struct irq_chip tilegx_msi_chip = { /* TBD: support set_affinity. */ }; -int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc) +static int tile_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc) { struct pci_controller *controller; gxio_trio_context_t *trio_context;
@@ -1604,7 +1604,17 @@ is_64_failure: return ret; } -void arch_teardown_msi_irq(unsigned int irq) +void tile_teardown_msi_irq(unsigned int irq) { irq_free_hwirq(irq); } + +static struct msi_chip tile_msi_chip = { + .setup_irq = tile_setup_msi_irq, + .teardown_irq = tile_teardown_msi_irq, +}; + +struct msi_chip *arch_find_msi_chip(struct pci_dev *dev) +{ + return &tile_msi_chip; +}
--
1.7.1