arch/powerpc/include/asm/pnv-pci.h

   1 /*
   2  * Copyright 2014 IBM Corp.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version
   7  * 2 of the License, or (at your option) any later version.
   8  */
   9
  10 #ifndef _ASM_PNV_PCI_H
  11 #define _ASM_PNV_PCI_H
  12
  13 #include <linux/pci.h>
  14 #include <misc/cxl-base.h>
  15
  16 #define PCI_SLOT_ID_PREFIX      0x8000000000000000
  17 #define PCI_SLOT_ID(phb_id, bdfn)       \
  18         (PCI_SLOT_ID_PREFIX | ((uint64_t)(bdfn) << 16) | (phb_id))
  19
  20 int pnv_phb_to_cxl_mode(struct pci_dev *dev, uint64_t mode);
  21 int pnv_cxl_ioda_msi_setup(struct pci_dev *dev, unsigned int hwirq,
  22                            unsigned int virq);
  23 int pnv_cxl_alloc_hwirqs(struct pci_dev *dev, int num);
  24 void pnv_cxl_release_hwirqs(struct pci_dev *dev, int hwirq, int num);
  25 int pnv_cxl_get_irq_count(struct pci_dev *dev);
  26 struct device_node *pnv_pci_get_phb_node(struct pci_dev *dev);
  27
  28 #ifdef CONFIG_CXL_BASE
  29 int pnv_cxl_alloc_hwirq_ranges(struct cxl_irq_ranges *irqs,
  30                                struct pci_dev *dev, int num);
  31 void pnv_cxl_release_hwirq_ranges(struct cxl_irq_ranges *irqs,
  32                                   struct pci_dev *dev);
  33 #endif
  34
  35 #endif