projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 80c49c7e IM |
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> | |
| 89379f16 | 14 | #include <linux/pci_hotplug.h> |
| ec249dd8 | 15 | #include <misc/cxl-base.h> |
| ea0d856c | 16 | #include <asm/opal-api.h> |
| 80c49c7e | 17 | |
| 066bcd78 | 18 | #define PCI_SLOT_ID_PREFIX (1UL << 63) |
| ebe22531 GS |
19 | #define PCI_SLOT_ID(phb_id, bdfn) \ |
| 20 | (PCI_SLOT_ID_PREFIX | ((uint64_t)(bdfn) << 16) | (phb_id)) | |
| 21 | ||
| 7e19bf32 | 22 | extern int pnv_pci_get_slot_id(struct device_node *np, uint64_t *id); |
| ea0d856c GS |
23 | extern int pnv_pci_get_device_tree(uint32_t phandle, void *buf, uint64_t len); |
| 24 | extern int pnv_pci_get_presence_state(uint64_t id, uint8_t *state); | |
| 25 | extern int pnv_pci_get_power_state(uint64_t id, uint8_t *state); | |
| 26 | extern int pnv_pci_set_power_state(uint64_t id, uint8_t state, | |
| 27 | struct opal_msg *msg); | |
| 7e19bf32 | 28 | |
| 1212aa1c | 29 | int pnv_phb_to_cxl_mode(struct pci_dev *dev, uint64_t mode); |
| 80c49c7e IM |
30 | int pnv_cxl_ioda_msi_setup(struct pci_dev *dev, unsigned int hwirq, |
| 31 | unsigned int virq); | |
| 32 | int pnv_cxl_alloc_hwirqs(struct pci_dev *dev, int num); | |
| 33 | void pnv_cxl_release_hwirqs(struct pci_dev *dev, int hwirq, int num); | |
| 34 | int pnv_cxl_get_irq_count(struct pci_dev *dev); | |
| 6f963ec2 | 35 | struct device_node *pnv_pci_get_phb_node(struct pci_dev *dev); |
| 80c49c7e IM |
36 | |
| 37 | #ifdef CONFIG_CXL_BASE | |
| 38 | int pnv_cxl_alloc_hwirq_ranges(struct cxl_irq_ranges *irqs, | |
| 39 | struct pci_dev *dev, int num); | |
| 40 | void pnv_cxl_release_hwirq_ranges(struct cxl_irq_ranges *irqs, | |
| 41 | struct pci_dev *dev); | |
| 4361b034 IM |
42 | |
| 43 | /* Support for the cxl kernel api on the real PHB (instead of vPHB) */ | |
| 44 | int pnv_cxl_enable_phb_kernel_api(struct pci_controller *hose, bool enable); | |
| 45 | bool pnv_pci_on_cxl_phb(struct pci_dev *dev); | |
| 46 | struct cxl_afu *pnv_cxl_phb_to_afu(struct pci_controller *hose); | |
| 47 | void pnv_cxl_phb_set_peer_afu(struct pci_dev *dev, struct cxl_afu *afu); | |
| 48 | ||
| 80c49c7e IM |
49 | #endif |
| 50 | ||
| 89379f16 AD |
51 | struct 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; | |
| 360aebd8 GS |
63 | int irq; |
| 64 | struct workqueue_struct *wq; | |
| 89379f16 AD |
65 | struct device_node *dn; |
| 66 | struct pci_dev *pdev; | |
| 67 | struct pci_bus *bus; | |
| 68 | bool power_state_check; | |
| 69 | void *fdt; | |
| 70 | void *dt; | |
| 71 | struct of_changeset ocs; | |
| 72 | struct pnv_php_slot *parent; | |
| 73 | struct list_head children; | |
| 74 | struct list_head link; | |
| 75 | }; | |
| 76 | extern struct pnv_php_slot *pnv_php_find_slot(struct device_node *dn); | |
| 77 | extern int pnv_php_set_slot_power_state(struct hotplug_slot *slot, | |
| 78 | uint8_t state); | |
| 79 | ||
| 80c49c7e | 80 | #endif |