[PATCH v12 02/19] PCI: Add INtx Mechanism Messages macros

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Add "Message Routing" and "INTx Mechanism Messages" macros to send
a message by a PCIe driver.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
---
 include/linux/pci.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/include/linux/pci.h b/include/linux/pci.h
index 0b57e37d8e77..ada1047035a8 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1050,6 +1050,24 @@ enum {
 #define PCI_IRQ_MSIX		(1 << 2) /* Allow MSI-X interrupts */
 #define PCI_IRQ_AFFINITY	(1 << 3) /* Auto-assign affinity */
 
+/* Message Routing */
+#define PCI_MSG_ROUTING_RC	0
+#define PCI_MSG_ROUTING_ADDR	1
+#define PCI_MSG_ROUTING_ID	2
+#define PCI_MSG_ROUTING_BC	3
+#define PCI_MSG_ROUTING_LOCAL	4
+#define PCI_MSG_ROUTING_GATHER	5
+
+/* INTx Mechanism Messages */
+#define PCI_CODE_ASSERT_INTA	0x20
+#define PCI_CODE_ASSERT_INTB	0x21
+#define PCI_CODE_ASSERT_INTC	0x22
+#define PCI_CODE_ASSERT_INTD	0x23
+#define PCI_CODE_DEASSERT_INTA	0x24
+#define PCI_CODE_DEASSERT_INTB	0x25
+#define PCI_CODE_DEASSERT_INTC	0x26
+#define PCI_CODE_DEASSERT_INTD	0x27
+
 /* These external functions are only available when PCI support is enabled */
 #ifdef CONFIG_PCI
 
-- 
2.25.1




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