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PCI: Move enum pci_interrupt_pin to linux/pci.h

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We currently have a definition of enum pci_interrupt_pin in a header
specific to PCI endpoints - linux/pci-epf.h. In order to allow for use of
this enum from PCI host code in a future commit, move its definition to
linux/pci.h & include that from linux/pci-epf.h.

Additionally we add a PCI_NUM_INTX macro which indicates the number of PCI
INTx interrupts, and will be used alongside enum pci_interrupt_pin in
further patches.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
[bhelgaas: move enum pci_interrupt_pin outside #ifdef CONFIG_PCI]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Paul Burton
2017-08-15 12:02:16 -07:00
committed by Bjorn Helgaas
parent 16f73eb02d
commit b352baf15b
2 changed files with 23 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
include/linux/pci-epf.h
View File

@@ -14,17 +14,10 @@
#include <linux/device.h> #include <linux/device.h>
#include <linux/mod_devicetable.h> #include <linux/mod_devicetable.h>
#include <linux/pci.h>
struct pci_epf; struct pci_epf;
enum pci_interrupt_pin {
PCI_INTERRUPT_UNKNOWN,
PCI_INTERRUPT_INTA,
PCI_INTERRUPT_INTB,
PCI_INTERRUPT_INTC,
PCI_INTERRUPT_INTD,
};
enum pci_barno { enum pci_barno {
BAR_0, BAR_0,
BAR_1, BAR_1,

22
include/linux/pci.h
View File

@@ -102,6 +102,28 @@ enum {
DEVICE_COUNT_RESOURCE = PCI_NUM_RESOURCES, DEVICE_COUNT_RESOURCE = PCI_NUM_RESOURCES,
}; };
/**
* enum pci_interrupt_pin - PCI INTx interrupt values
* @PCI_INTERRUPT_UNKNOWN: Unknown or unassigned interrupt
* @PCI_INTERRUPT_INTA: PCI INTA pin
* @PCI_INTERRUPT_INTB: PCI INTB pin
* @PCI_INTERRUPT_INTC: PCI INTC pin
* @PCI_INTERRUPT_INTD: PCI INTD pin
*
* Corresponds to values for legacy PCI INTx interrupts, as can be found in the
* PCI_INTERRUPT_PIN register.
*/
enum pci_interrupt_pin {
PCI_INTERRUPT_UNKNOWN,
PCI_INTERRUPT_INTA,
PCI_INTERRUPT_INTB,
PCI_INTERRUPT_INTC,
PCI_INTERRUPT_INTD,
};
/* The number of legacy PCI INTx interrupts */
#define PCI_NUM_INTX 4
/* /*
* pci_power_t values must match the bits in the Capabilities PME_Support * pci_power_t values must match the bits in the Capabilities PME_Support
* and Control/Status PowerState fields in the Power Management capability. * and Control/Status PowerState fields in the Power Management capability.