Add "Message Routing" and "INTx Mechanism Messages" macros to enable a PCIe driver to send messages for INTx Interrupt Signaling. The "Message Routing" is from Table 2-17, and the "INTx Mechanism Messages" is from Table 2-18 on the PCI Express Base Specification, Rev. 4.0 Version 1.0. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx> Reviewed-by: Serge Semin <fancer.lancer@xxxxxxxxx> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@xxxxxxxxxx> --- drivers/pci/pci.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index a4c397434057..0b6df6c2c918 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -13,6 +13,24 @@ #define PCIE_LINK_RETRAIN_TIMEOUT_MS 1000 +/* Message Routing (r[2:0]) */ +#define PCI_MSG_TYPE_R_ROUTING_RC 0 +#define PCI_MSG_TYPE_R_ROUTING_ADDR 1 +#define PCI_MSG_TYPE_R_ROUTING_ID 2 +#define PCI_MSG_TYPE_R_ROUTING_BC 3 +#define PCI_MSG_TYPE_R_ROUTING_LOCAL 4 +#define PCI_MSG_TYPE_R_ROUTING_GATHER 5 + +/* INTx Mechanism Messages */ +#define PCI_MSG_CODE_ASSERT_INTA 0x20 +#define PCI_MSG_CODE_ASSERT_INTB 0x21 +#define PCI_MSG_CODE_ASSERT_INTC 0x22 +#define PCI_MSG_CODE_ASSERT_INTD 0x23 +#define PCI_MSG_CODE_DEASSERT_INTA 0x24 +#define PCI_MSG_CODE_DEASSERT_INTB 0x25 +#define PCI_MSG_CODE_DEASSERT_INTC 0x26 +#define PCI_MSG_CODE_DEASSERT_INTD 0x27 + extern const unsigned char pcie_link_speed[]; extern bool pci_early_dump; -- 2.25.1
