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77 lines
2.4 KiB
77 lines
2.4 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* Copyright 2014 IBM Corp. |
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*/ |
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#ifndef _ASM_PNV_PCI_H |
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#define _ASM_PNV_PCI_H |
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#include <linux/pci.h> |
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#include <linux/pci_hotplug.h> |
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#include <linux/irq.h> |
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#include <misc/cxl-base.h> |
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#include <asm/opal-api.h> |
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#define PCI_SLOT_ID_PREFIX (1UL << 63) |
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#define PCI_SLOT_ID(phb_id, bdfn) \ |
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(PCI_SLOT_ID_PREFIX | ((uint64_t)(bdfn) << 16) | (phb_id)) |
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#define PCI_PHB_SLOT_ID(phb_id) (phb_id) |
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extern int pnv_pci_get_slot_id(struct device_node *np, uint64_t *id); |
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extern int pnv_pci_get_device_tree(uint32_t phandle, void *buf, uint64_t len); |
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extern int pnv_pci_get_presence_state(uint64_t id, uint8_t *state); |
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extern int pnv_pci_get_power_state(uint64_t id, uint8_t *state); |
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extern int pnv_pci_set_power_state(uint64_t id, uint8_t state, |
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struct opal_msg *msg); |
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extern int pnv_pci_set_tunnel_bar(struct pci_dev *dev, uint64_t addr, |
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int enable); |
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int pnv_phb_to_cxl_mode(struct pci_dev *dev, uint64_t mode); |
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int pnv_cxl_ioda_msi_setup(struct pci_dev *dev, unsigned int hwirq, |
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unsigned int virq); |
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int pnv_cxl_alloc_hwirqs(struct pci_dev *dev, int num); |
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void pnv_cxl_release_hwirqs(struct pci_dev *dev, int hwirq, int num); |
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int pnv_cxl_get_irq_count(struct pci_dev *dev); |
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struct device_node *pnv_pci_get_phb_node(struct pci_dev *dev); |
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int64_t pnv_opal_pci_msi_eoi(struct irq_chip *chip, unsigned int hw_irq); |
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bool is_pnv_opal_msi(struct irq_chip *chip); |
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#ifdef CONFIG_CXL_BASE |
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int pnv_cxl_alloc_hwirq_ranges(struct cxl_irq_ranges *irqs, |
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struct pci_dev *dev, int num); |
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void pnv_cxl_release_hwirq_ranges(struct cxl_irq_ranges *irqs, |
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struct pci_dev *dev); |
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#endif |
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struct pnv_php_slot { |
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struct hotplug_slot slot; |
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uint64_t id; |
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char *name; |
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int slot_no; |
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unsigned int flags; |
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#define PNV_PHP_FLAG_BROKEN_PDC 0x1 |
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struct kref kref; |
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#define PNV_PHP_STATE_INITIALIZED 0 |
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#define PNV_PHP_STATE_REGISTERED 1 |
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#define PNV_PHP_STATE_POPULATED 2 |
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#define PNV_PHP_STATE_OFFLINE 3 |
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int state; |
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int irq; |
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struct workqueue_struct *wq; |
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struct device_node *dn; |
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struct pci_dev *pdev; |
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struct pci_bus *bus; |
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bool power_state_check; |
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u8 attention_state; |
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void *fdt; |
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void *dt; |
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struct of_changeset ocs; |
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struct pnv_php_slot *parent; |
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struct list_head children; |
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struct list_head link; |
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}; |
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extern struct pnv_php_slot *pnv_php_find_slot(struct device_node *dn); |
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extern int pnv_php_set_slot_power_state(struct hotplug_slot *slot, |
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uint8_t state); |
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#endif
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