[PATCH v13 03/22] PCI: Add INTx Mechanism Messages macros

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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>
---
 .../pci/controller/dwc/pcie-designware-ep.c   |  1 +
 drivers/pci/pci.h                             | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/drivers/pci/controller/dwc/pcie-designware-ep.c b/drivers/pci/controller/dwc/pcie-designware-ep.c
index f9182f8d552f..205bbcc6af27 100644
--- a/drivers/pci/controller/dwc/pcie-designware-ep.c
+++ b/drivers/pci/controller/dwc/pcie-designware-ep.c
@@ -9,6 +9,7 @@
 #include <linux/of.h>
 #include <linux/platform_device.h>
 
+#include "../../pci.h"
 #include "pcie-designware.h"
 #include <linux/pci-epc.h>
 #include <linux/pci-epf.h>
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index d2c08670a20e..5a262643896c 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -11,6 +11,25 @@
 
 #define PCI_VSEC_ID_INTEL_TBT	0x1234	/* Thunderbolt */
 
+/* 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
+
+
 extern const unsigned char pcie_link_speed[];
 extern bool pci_early_dump;
 
-- 
2.25.1




[Index of Archives]     [DMA Engine]     [Linux Coverity]     [Linux USB]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Greybus]

  Powered by Linux