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review.shift-gmbh.com / SHIFTPHONES / mainline / linux / f99e33f12490d03e34e1b9cb1b3e3a8beff34ae5 / . / arch / powerpc / include / asm / pnv-pci.h
blob: 630eb8b1b7ed3a2c1e2097c9df81acd88633e42c [file] [log] [blame]
Ian Munsie80c49c72014-10-08 19:54:57 +1100[diff] [blame]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>
Andrew Donnellan89379f12016-07-14 07:17:12 +1000[diff] [blame]14#include <linux/pci_hotplug.h>
Suresh Warrier4ee11c12016-08-19 15:35:49 +1000[diff] [blame]15#include <linux/irq.h>
Michael Neulingec249dd2015-05-27 16:07:16 +1000[diff] [blame]16#include <misc/cxl-base.h>
Gavin Shanea0d8562016-05-20 16:41:41 +1000[diff] [blame]17#include <asm/opal-api.h>
Ian Munsie80c49c72014-10-08 19:54:57 +1100[diff] [blame]18
Gavin Shan066bcd72016-08-02 14:10:31 +1000[diff] [blame]19#define PCI_SLOT_ID_PREFIX (1UL << 63)
Gavin Shanebe22532016-05-20 16:41:38 +1000[diff] [blame]20#define PCI_SLOT_ID(phb_id, bdfn) \
21 (PCI_SLOT_ID_PREFIX | ((uint64_t)(bdfn) << 16) | (phb_id))
22
Gavin Shan7e19bf32016-05-20 16:41:40 +1000[diff] [blame]23extern int pnv_pci_get_slot_id(struct device_node *np, uint64_t *id);
Gavin Shanea0d8562016-05-20 16:41:41 +1000[diff] [blame]24extern int pnv_pci_get_device_tree(uint32_t phandle, void *buf, uint64_t len);
25extern int pnv_pci_get_presence_state(uint64_t id, uint8_t *state);
26extern int pnv_pci_get_power_state(uint64_t id, uint8_t *state);
27extern int pnv_pci_set_power_state(uint64_t id, uint8_t state,
28 struct opal_msg *msg);
Frederic Barrat25529102017-08-04 11:55:14 +0200[diff] [blame]29extern int pnv_pci_set_p2p(struct pci_dev *initiator, struct pci_dev *target,
30 u64 desc);
Gavin Shan7e19bf32016-05-20 16:41:40 +1000[diff] [blame]31
Philippe Bergheaudd6a90bb2018-03-02 10:56:11 +0100[diff] [blame]32extern int pnv_pci_enable_tunnel(struct pci_dev *dev, uint64_t *asnind);
33extern int pnv_pci_disable_tunnel(struct pci_dev *dev);
34extern int pnv_pci_set_tunnel_bar(struct pci_dev *dev, uint64_t addr,
35 int enable);
36extern int pnv_pci_get_as_notify_info(struct task_struct *task, u32 *lpid,
37 u32 *pid, u32 *tid);
Ryan Grimm1212aa12015-01-19 11:52:50 -0600[diff] [blame]38int pnv_phb_to_cxl_mode(struct pci_dev *dev, uint64_t mode);
Ian Munsie80c49c72014-10-08 19:54:57 +1100[diff] [blame]39int pnv_cxl_ioda_msi_setup(struct pci_dev *dev, unsigned int hwirq,
40 unsigned int virq);
41int pnv_cxl_alloc_hwirqs(struct pci_dev *dev, int num);
42void pnv_cxl_release_hwirqs(struct pci_dev *dev, int hwirq, int num);
43int pnv_cxl_get_irq_count(struct pci_dev *dev);
Ryan Grimm6f963ec2015-01-28 20:16:04 -0600[diff] [blame]44struct device_node *pnv_pci_get_phb_node(struct pci_dev *dev);
Suresh Warrier4ee11c12016-08-19 15:35:49 +1000[diff] [blame]45int64_t pnv_opal_pci_msi_eoi(struct irq_chip *chip, unsigned int hw_irq);
46bool is_pnv_opal_msi(struct irq_chip *chip);
Ian Munsie80c49c72014-10-08 19:54:57 +1100[diff] [blame]47
48#ifdef CONFIG_CXL_BASE
49int pnv_cxl_alloc_hwirq_ranges(struct cxl_irq_ranges *irqs,
50 struct pci_dev *dev, int num);
51void pnv_cxl_release_hwirq_ranges(struct cxl_irq_ranges *irqs,
52 struct pci_dev *dev);
Ian Munsie80c49c72014-10-08 19:54:57 +1100[diff] [blame]53#endif
54
Andrew Donnellan89379f12016-07-14 07:17:12 +1000[diff] [blame]55struct pnv_php_slot {
56 struct hotplug_slot slot;
Andrew Donnellan89379f12016-07-14 07:17:12 +1000[diff] [blame]57 uint64_t id;
58 char *name;
59 int slot_no;
Gavin Shan454593e2017-01-11 11:50:08 +1100[diff] [blame]60 unsigned int flags;
61#define PNV_PHP_FLAG_BROKEN_PDC 0x1
Andrew Donnellan89379f12016-07-14 07:17:12 +1000[diff] [blame]62 struct kref kref;
63#define PNV_PHP_STATE_INITIALIZED 0
64#define PNV_PHP_STATE_REGISTERED 1
65#define PNV_PHP_STATE_POPULATED 2
66#define PNV_PHP_STATE_OFFLINE 3
67 int state;
Gavin Shan360aebd2016-09-28 14:34:58 +1000[diff] [blame]68 int irq;
69 struct workqueue_struct *wq;
Andrew Donnellan89379f12016-07-14 07:17:12 +1000[diff] [blame]70 struct device_node *dn;
71 struct pci_dev *pdev;
72 struct pci_bus *bus;
73 bool power_state_check;
Lukas Wunnera7da2162018-09-08 09:59:01 +0200[diff] [blame]74 u8 attention_state;
Andrew Donnellan89379f12016-07-14 07:17:12 +1000[diff] [blame]75 void *fdt;
76 void *dt;
77 struct of_changeset ocs;
78 struct pnv_php_slot *parent;
79 struct list_head children;
80 struct list_head link;
81};
82extern struct pnv_php_slot *pnv_php_find_slot(struct device_node *dn);
83extern int pnv_php_set_slot_power_state(struct hotplug_slot *slot,
84 uint8_t state);
85
Ian Munsie80c49c72014-10-08 19:54:57 +1100[diff] [blame]86#endif