77 lines
2.4 KiB
C
77 lines
2.4 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
|
||
|
|
/*
|
||
|
|
* Copyright 2014 IBM Corp.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _ASM_PNV_PCI_H
|
||
|
|
#define _ASM_PNV_PCI_H
|
||
|
|
|
||
|
|
#include <linux/pci.h>
|
||
|
|
#include <linux/pci_hotplug.h>
|
||
|
|
#include <linux/irq.h>
|
||
|
|
#include <misc/cxl-base.h>
|
||
|
|
#include <asm/opal-api.h>
|
||
|
|
|
||
|
|
#define PCI_SLOT_ID_PREFIX (1UL << 63)
|
||
|
|
#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);
|
||
|
|
|
||
|
|
extern int pnv_pci_set_tunnel_bar(struct pci_dev *dev, uint64_t addr,
|
||
|
|
int enable);
|
||
|
|
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);
|
||
|
|
int64_t pnv_opal_pci_msi_eoi(struct irq_chip *chip, unsigned int hw_irq);
|
||
|
|
bool is_pnv_opal_msi(struct irq_chip *chip);
|
||
|
|
|
||
|
|
#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
|
||
|
|
|
||
|
|
struct pnv_php_slot {
|
||
|
|
struct hotplug_slot slot;
|
||
|
|
uint64_t id;
|
||
|
|
char *name;
|
||
|
|
int slot_no;
|
||
|
|
unsigned int flags;
|
||
|
|
#define PNV_PHP_FLAG_BROKEN_PDC 0x1
|
||
|
|
struct kref kref;
|
||
|
|
#define PNV_PHP_STATE_INITIALIZED 0
|
||
|
|
#define PNV_PHP_STATE_REGISTERED 1
|
||
|
|
#define PNV_PHP_STATE_POPULATED 2
|
||
|
|
#define PNV_PHP_STATE_OFFLINE 3
|
||
|
|
int state;
|
||
|
|
int irq;
|
||
|
|
struct workqueue_struct *wq;
|
||
|
|
struct device_node *dn;
|
||
|
|
struct pci_dev *pdev;
|
||
|
|
struct pci_bus *bus;
|
||
|
|
bool power_state_check;
|
||
|
|
u8 attention_state;
|
||
|
|
void *fdt;
|
||
|
|
void *dt;
|
||
|
|
struct of_changeset ocs;
|
||
|
|
struct pnv_php_slot *parent;
|
||
|
|
struct list_head children;
|
||
|
|
struct list_head link;
|
||
|
|
};
|
||
|
|
extern struct pnv_php_slot *pnv_php_find_slot(struct device_node *dn);
|
||
|
|
extern int pnv_php_set_slot_power_state(struct hotplug_slot *slot,
|
||
|
|
uint8_t state);
|
||
|
|
|
||
|
|
#endif
|