2 * Copyright 2014 IBM Corp.
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.
10 #ifndef _ASM_PNV_PCI_H
11 #define _ASM_PNV_PCI_H
13 #include <linux/pci.h>
14 #include <linux/pci_hotplug.h>
15 #include <linux/irq.h>
16 #include <misc/cxl-base.h>
17 #include <asm/opal-api.h>
19 #define PCI_SLOT_ID_PREFIX (1UL << 63)
20 #define PCI_SLOT_ID(phb_id, bdfn) \
21 (PCI_SLOT_ID_PREFIX | ((uint64_t)(bdfn) << 16) | (phb_id))
23 extern int pnv_pci_get_slot_id(struct device_node *np, uint64_t *id);
24 extern int pnv_pci_get_device_tree(uint32_t phandle, void *buf, uint64_t len);
25 extern int pnv_pci_get_presence_state(uint64_t id, uint8_t *state);
26 extern int pnv_pci_get_power_state(uint64_t id, uint8_t *state);
27 extern int pnv_pci_set_power_state(uint64_t id, uint8_t state,
28 struct opal_msg *msg);
30 extern int pnv_pci_enable_tunnel(struct pci_dev *dev, uint64_t *asnind);
31 extern int pnv_pci_disable_tunnel(struct pci_dev *dev);
32 extern int pnv_pci_set_tunnel_bar(struct pci_dev *dev, uint64_t addr,
34 extern int pnv_pci_get_as_notify_info(struct task_struct *task, u32 *lpid,
36 int pnv_phb_to_cxl_mode(struct pci_dev *dev, uint64_t mode);
37 int pnv_cxl_ioda_msi_setup(struct pci_dev *dev, unsigned int hwirq,
39 int pnv_cxl_alloc_hwirqs(struct pci_dev *dev, int num);
40 void pnv_cxl_release_hwirqs(struct pci_dev *dev, int hwirq, int num);
41 int pnv_cxl_get_irq_count(struct pci_dev *dev);
42 struct device_node *pnv_pci_get_phb_node(struct pci_dev *dev);
43 int64_t pnv_opal_pci_msi_eoi(struct irq_chip *chip, unsigned int hw_irq);
44 bool is_pnv_opal_msi(struct irq_chip *chip);
46 #ifdef CONFIG_CXL_BASE
47 int pnv_cxl_alloc_hwirq_ranges(struct cxl_irq_ranges *irqs,
48 struct pci_dev *dev, int num);
49 void pnv_cxl_release_hwirq_ranges(struct cxl_irq_ranges *irqs,
54 struct hotplug_slot slot;
59 #define PNV_PHP_FLAG_BROKEN_PDC 0x1
61 #define PNV_PHP_STATE_INITIALIZED 0
62 #define PNV_PHP_STATE_REGISTERED 1
63 #define PNV_PHP_STATE_POPULATED 2
64 #define PNV_PHP_STATE_OFFLINE 3
67 struct workqueue_struct *wq;
68 struct device_node *dn;
71 bool power_state_check;
75 struct of_changeset ocs;
76 struct pnv_php_slot *parent;
77 struct list_head children;
78 struct list_head link;
80 extern struct pnv_php_slot *pnv_php_find_slot(struct device_node *dn);
81 extern int pnv_php_set_slot_power_state(struct hotplug_slot *slot,