[08/16] MIPS/Xlp/MSI: Use MSI controller framework to configure MSI/MSI-X irq

Commit Message

Yijing Wang Oct. 27, 2014, 1:22 p.m. UTC

Use MSI controller 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 <[e-mail]>
---
 arch/mips/include/asm/netlogic/xlp-hal/pcibus.h |    1 +
 arch/mips/pci/msi-xlp.c                         |   11 +++++++++--
 arch/mips/pci/pci-xlp.c                         |    3 +++
 3 files changed, 13 insertions(+), 2 deletions(-)

Patch

diff --git a/arch/mips/include/asm/netlogic/xlp-hal/pcibus.h b/arch/mips/include/asm/netlogic/xlp-hal/pcibus.h
index 91540f4..8e6869a 100644
--- a/arch/mips/include/asm/netlogic/xlp-hal/pcibus.h
+++ b/arch/mips/include/asm/netlogic/xlp-hal/pcibus.h
@@ -103,6 +103,7 @@ 
 
 #ifdef CONFIG_PCI_MSI
 void xlp_init_node_msi_irqs(int node, int link);
+extern struct msi_controller xlp_msi_ctrl;
 #else
 static inline void xlp_init_node_msi_irqs(int node, int link) {}
 #endif
diff --git a/arch/mips/pci/msi-xlp.c b/arch/mips/pci/msi-xlp.c
index fa374fe..d18a162 100644
--- a/arch/mips/pci/msi-xlp.c
+++ b/arch/mips/pci/msi-xlp.c
@@ -245,7 +245,8 @@  static struct irq_chip xlp_msix_chip = {
 	.irq_unmask	= unmask_msi_irq,
 };
 
-void arch_teardown_msi_irq(unsigned int irq)
+static void xlp_teardown_msi_irq(struct msi_controller *ctrl,
+		unsigned int irq)
 {
 }
 
@@ -452,7 +453,8 @@  static int xlp_setup_msix(uint64_t lnkbase, int node, int link,
 	return 0;
 }
 
-int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc)
+static int xlp_setup_msi_irq(struct msi_controller *ctrl,
+		struct pci_dev *dev, struct msi_desc *desc)
 {
 	struct pci_dev *lnkdev;
 	uint64_t lnkbase;
@@ -474,6 +476,11 @@  int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc)
 		return xlp_setup_msi(lnkbase, node, link, desc);
 }
 
+struct msi_controller xlp_msi_ctrl = {
+	.setup_irq = xlp_setup_msi_irq,
+	.teardown_irq = xlp_teardown_msi_irq,
+};
+
 void __init xlp_init_node_msi_irqs(int node, int link)
 {
 	struct nlm_soc_info *nodep;
diff --git a/arch/mips/pci/pci-xlp.c b/arch/mips/pci/pci-xlp.c
index 7babf01..ab80417 100644
--- a/arch/mips/pci/pci-xlp.c
+++ b/arch/mips/pci/pci-xlp.c
@@ -174,6 +174,9 @@  struct pci_controller nlm_pci_controller = {
 	.mem_offset	= 0x00000000UL,
 	.io_resource	= &nlm_pci_io_resource,
 	.io_offset	= 0x00000000UL,
+#ifdef CONFIG_PCI_MSI
+	.msi_ctrl = &xlp_msi_ctrl,
+#endif
 };
 
 struct pci_dev *xlp_get_pcie_link(const struct pci_dev *dev)