forked from Minki/linux
ea0d856cb2
This exports 4 functions, which base on the corresponding OPAL APIs to get/set PCI slot status. Those functions are going to be used by PowerNV PCI hotplug driver: pnv_pci_get_device_tree() opal_get_device_tree() pnv_pci_get_presence_state() opal_pci_get_presence_state() pnv_pci_get_power_state() opal_pci_get_power_state() pnv_pci_set_power_state() opal_pci_set_power_state() Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
44 lines
1.5 KiB
C
44 lines
1.5 KiB
C
/*
|
|
* Copyright 2014 IBM Corp.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
|
|
#ifndef _ASM_PNV_PCI_H
|
|
#define _ASM_PNV_PCI_H
|
|
|
|
#include <linux/pci.h>
|
|
#include <misc/cxl-base.h>
|
|
#include <asm/opal-api.h>
|
|
|
|
#define PCI_SLOT_ID_PREFIX 0x8000000000000000
|
|
#define PCI_SLOT_ID(phb_id, bdfn) \
|
|
(PCI_SLOT_ID_PREFIX | ((uint64_t)(bdfn) << 16) | (phb_id))
|
|
|
|
extern int pnv_pci_get_slot_id(struct device_node *np, uint64_t *id);
|
|
extern int pnv_pci_get_device_tree(uint32_t phandle, void *buf, uint64_t len);
|
|
extern int pnv_pci_get_presence_state(uint64_t id, uint8_t *state);
|
|
extern int pnv_pci_get_power_state(uint64_t id, uint8_t *state);
|
|
extern int pnv_pci_set_power_state(uint64_t id, uint8_t state,
|
|
struct opal_msg *msg);
|
|
|
|
int pnv_phb_to_cxl_mode(struct pci_dev *dev, uint64_t mode);
|
|
int pnv_cxl_ioda_msi_setup(struct pci_dev *dev, unsigned int hwirq,
|
|
unsigned int virq);
|
|
int pnv_cxl_alloc_hwirqs(struct pci_dev *dev, int num);
|
|
void pnv_cxl_release_hwirqs(struct pci_dev *dev, int hwirq, int num);
|
|
int pnv_cxl_get_irq_count(struct pci_dev *dev);
|
|
struct device_node *pnv_pci_get_phb_node(struct pci_dev *dev);
|
|
|
|
#ifdef CONFIG_CXL_BASE
|
|
int pnv_cxl_alloc_hwirq_ranges(struct cxl_irq_ranges *irqs,
|
|
struct pci_dev *dev, int num);
|
|
void pnv_cxl_release_hwirq_ranges(struct cxl_irq_ranges *irqs,
|
|
struct pci_dev *dev);
|
|
#endif
|
|
|
|
#endif
|