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usr
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src
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linux-headers-6.8.0-83
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arch
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powerpc
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include
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asm
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pnv-pci.h
/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright 2014 IBM Corp. */ #ifndef _ASM_PNV_PCI_H #define _ASM_PNV_PCI_H #include <linux/pci.h> #include <linux/pci_hotplug.h> #include <linux/irq.h> #include <linux/of.h> #include <misc/cxl-base.h> #include <asm/opal-api.h> #define PCI_SLOT_ID_PREFIX (1UL << 63) #define PCI_SLOT_ID(phb_id, bdfn) \ (PCI_SLOT_ID_PREFIX | ((uint64_t)(bdfn) << 16) | (phb_id)) #define PCI_PHB_SLOT_ID(phb_id) (phb_id) extern int pnv_pci_get_slot_id(struct device_node *np, uint64_t *id); extern int pnv_pci_get_device_tree(uint32_t phandle, void *buf, uint64_t len); extern int pnv_pci_get_presence_state(uint64_t id, uint8_t *state); extern int pnv_pci_get_power_state(uint64_t id, uint8_t *state); extern int pnv_pci_set_power_state(uint64_t id, uint8_t state, struct opal_msg *msg); extern int pnv_pci_set_tunnel_bar(struct pci_dev *dev, uint64_t addr, int enable); int pnv_phb_to_cxl_mode(struct pci_dev *dev, uint64_t mode); int pnv_cxl_ioda_msi_setup(struct pci_dev *dev, unsigned int hwirq, unsigned int virq); int pnv_cxl_alloc_hwirqs(struct pci_dev *dev, int num); void pnv_cxl_release_hwirqs(struct pci_dev *dev, int hwirq, int num); int pnv_cxl_get_irq_count(struct pci_dev *dev); struct device_node *pnv_pci_get_phb_node(struct pci_dev *dev); int64_t pnv_opal_pci_msi_eoi(struct irq_data *d); bool is_pnv_opal_msi(struct irq_chip *chip); #ifdef CONFIG_CXL_BASE int pnv_cxl_alloc_hwirq_ranges(struct cxl_irq_ranges *irqs, struct pci_dev *dev, int num); void pnv_cxl_release_hwirq_ranges(struct cxl_irq_ranges *irqs, struct pci_dev *dev); #endif struct pnv_php_slot { struct hotplug_slot slot; uint64_t id; char *name; int slot_no; unsigned int flags; #define PNV_PHP_FLAG_BROKEN_PDC 0x1 struct kref kref; #define PNV_PHP_STATE_INITIALIZED 0 #define PNV_PHP_STATE_REGISTERED 1 #define PNV_PHP_STATE_POPULATED 2 #define PNV_PHP_STATE_OFFLINE 3 int state; int irq; struct workqueue_struct *wq; struct device_node *dn; struct pci_dev *pdev; struct pci_bus *bus; bool power_state_check; u8 attention_state; void *fdt; void *dt; struct of_changeset ocs; struct pnv_php_slot *parent; struct list_head children; struct list_head link; }; extern struct pnv_php_slot *pnv_php_find_slot(struct device_node *dn); extern int pnv_php_set_slot_power_state(struct hotplug_slot *slot, uint8_t state); #endif
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