aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/pci.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/pci.h')
-rw-r--r--include/linux/pci.h67
1 files changed, 0 insertions, 67 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 9b34bc8f34e4..0da5a4a8940f 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -595,11 +595,6 @@ struct msix_entry {
595 u16 entry; /* driver uses to specify entry, OS writes */ 595 u16 entry; /* driver uses to specify entry, OS writes */
596}; 596};
597 597
598struct msi_msg {
599 u32 address_lo; /* low 32 bits of msi message address */
600 u32 address_hi; /* high 32 bits of msi message address */
601 u32 data; /* 16 bits of msi message data */
602};
603 598
604#ifndef CONFIG_PCI_MSI 599#ifndef CONFIG_PCI_MSI
605static inline void pci_scan_msi_device(struct pci_dev *dev) {} 600static inline void pci_scan_msi_device(struct pci_dev *dev) {}
@@ -617,68 +612,6 @@ extern int pci_enable_msix(struct pci_dev* dev,
617 struct msix_entry *entries, int nvec); 612 struct msix_entry *entries, int nvec);
618extern void pci_disable_msix(struct pci_dev *dev); 613extern void pci_disable_msix(struct pci_dev *dev);
619extern void msi_remove_pci_irq_vectors(struct pci_dev *dev); 614extern void msi_remove_pci_irq_vectors(struct pci_dev *dev);
620
621/*
622 * MSI operation vector. Used by the msi core code (drivers/pci/msi.c)
623 * to abstract platform-specific tasks relating to MSI address generation
624 * and resource management.
625 */
626struct msi_ops {
627 int needs_64bit_address;
628 /**
629 * setup - generate an MSI bus address and data for a given vector
630 * @pdev: PCI device context (in)
631 * @irq: irq allocated by the msi core (in)
632 * @msg: PCI bus address and data for msi message (out)
633 *
634 * Description: The setup op is used to generate a PCI bus addres and
635 * data which the msi core will program into the card MSI capability
636 * registers. The setup routine is responsible for picking an initial
637 * cpu to target the MSI at. The setup routine is responsible for
638 * examining pdev to determine the MSI capabilities of the card and
639 * generating a suitable address/data. The setup routine is
640 * responsible for allocating and tracking any system resources it
641 * needs to route the MSI to the cpu it picks, and for associating
642 * those resources with the passed in vector.
643 *
644 * Returns 0 if the MSI address/data was successfully setup.
645 **/
646
647 int (*setup) (struct pci_dev *pdev, unsigned int irq,
648 struct msi_msg *msg);
649
650 /**
651 * teardown - release resources allocated by setup
652 * @vector: vector context for resources (in)
653 *
654 * Description: The teardown op is used to release any resources
655 * that were allocated in the setup routine associated with the passed
656 * in vector.
657 **/
658
659 void (*teardown) (unsigned int irq);
660
661 /**
662 * target - retarget an MSI at a different cpu
663 * @vector: vector context for resources (in)
664 * @cpu: new cpu to direct vector at (in)
665 * @addr_hi: new value of PCI bus upper 32 bits (in/out)
666 * @addr_lo: new value of PCI bus lower 32 bits (in/out)
667 *
668 * Description: The target op is used to redirect an MSI vector
669 * at a different cpu. addr_hi/addr_lo coming in are the existing
670 * values that the MSI core has programmed into the card. The
671 * target code is responsible for freeing any resources (if any)
672 * associated with the old address, and generating a new PCI bus
673 * addr_hi/addr_lo that will redirect the vector at the indicated cpu.
674 **/
675
676 void (*target) (unsigned int irq, cpumask_t cpumask,
677 struct msi_msg *msg);
678};
679
680extern int msi_register(struct msi_ops *ops);
681
682#endif 615#endif
683 616
684#ifdef CONFIG_HT_IRQ 617#ifdef CONFIG_HT_IRQ