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gerrit-public.fairphone.software / kernel / msm-4.9 / 89379f165a1be13aa9b4731a9095171142ee1c7b / . / arch / powerpc / include / asm / pnv-pci.h
blob: 0cbd8134ce81949f8bf079181a7180aa55ee9abb [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>
Michael Neulingec249dd2015-05-27 16:07:16 +1000[diff] [blame]15#include <misc/cxl-base.h>
Gavin Shanea0d8562016-05-20 16:41:41 +1000[diff] [blame]16#include <asm/opal-api.h>
Ian Munsie80c49c72014-10-08 19:54:57 +1100[diff] [blame]17
Gavin Shanebe22532016-05-20 16:41:38 +1000[diff] [blame]18#define PCI_SLOT_ID_PREFIX 0x8000000000000000
19#define PCI_SLOT_ID(phb_id, bdfn) \
20 (PCI_SLOT_ID_PREFIX | ((uint64_t)(bdfn) << 16) | (phb_id))
21
Gavin Shan7e19bf32016-05-20 16:41:40 +1000[diff] [blame]22extern int pnv_pci_get_slot_id(struct device_node *np, uint64_t *id);
Gavin Shanea0d8562016-05-20 16:41:41 +1000[diff] [blame]23extern int pnv_pci_get_device_tree(uint32_t phandle, void *buf, uint64_t len);
24extern int pnv_pci_get_presence_state(uint64_t id, uint8_t *state);
25extern int pnv_pci_get_power_state(uint64_t id, uint8_t *state);
26extern int pnv_pci_set_power_state(uint64_t id, uint8_t state,
27 struct opal_msg *msg);
Gavin Shan7e19bf32016-05-20 16:41:40 +1000[diff] [blame]28
Ryan Grimm1212aa12015-01-19 11:52:50 -0600[diff] [blame]29int pnv_phb_to_cxl_mode(struct pci_dev *dev, uint64_t mode);
Ian Munsie80c49c72014-10-08 19:54:57 +1100[diff] [blame]30int pnv_cxl_ioda_msi_setup(struct pci_dev *dev, unsigned int hwirq,
31 unsigned int virq);
32int pnv_cxl_alloc_hwirqs(struct pci_dev *dev, int num);
33void pnv_cxl_release_hwirqs(struct pci_dev *dev, int hwirq, int num);
34int pnv_cxl_get_irq_count(struct pci_dev *dev);
Ryan Grimm6f963ec2015-01-28 20:16:04 -0600[diff] [blame]35struct device_node *pnv_pci_get_phb_node(struct pci_dev *dev);
Ian Munsie80c49c72014-10-08 19:54:57 +1100[diff] [blame]36
37#ifdef CONFIG_CXL_BASE
38int pnv_cxl_alloc_hwirq_ranges(struct cxl_irq_ranges *irqs,
39 struct pci_dev *dev, int num);
40void pnv_cxl_release_hwirq_ranges(struct cxl_irq_ranges *irqs,
41 struct pci_dev *dev);
Ian Munsie4361b032016-07-14 07:17:06 +1000[diff] [blame]42
43/* Support for the cxl kernel api on the real PHB (instead of vPHB) */
44int pnv_cxl_enable_phb_kernel_api(struct pci_controller *hose, bool enable);
45bool pnv_pci_on_cxl_phb(struct pci_dev *dev);
46struct cxl_afu *pnv_cxl_phb_to_afu(struct pci_controller *hose);
47void pnv_cxl_phb_set_peer_afu(struct pci_dev *dev, struct cxl_afu *afu);
48
Ian Munsie80c49c72014-10-08 19:54:57 +1100[diff] [blame]49#endif
50
Andrew Donnellan89379f12016-07-14 07:17:12 +1000[diff] [blame^]51struct pnv_php_slot {
52 struct hotplug_slot slot;
53 struct hotplug_slot_info slot_info;
54 uint64_t id;
55 char *name;
56 int slot_no;
57 struct kref kref;
58#define PNV_PHP_STATE_INITIALIZED 0
59#define PNV_PHP_STATE_REGISTERED 1
60#define PNV_PHP_STATE_POPULATED 2
61#define PNV_PHP_STATE_OFFLINE 3
62 int state;
63 struct device_node *dn;
64 struct pci_dev *pdev;
65 struct pci_bus *bus;
66 bool power_state_check;
67 void *fdt;
68 void *dt;
69 struct of_changeset ocs;
70 struct pnv_php_slot *parent;
71 struct list_head children;
72 struct list_head link;
73};
74extern struct pnv_php_slot *pnv_php_find_slot(struct device_node *dn);
75extern int pnv_php_set_slot_power_state(struct hotplug_slot *slot,
76 uint8_t state);
77
Ian Munsie80c49c72014-10-08 19:54:57 +1100[diff] [blame]78#endif