debug lk

hc

2024-02-20 e636c8d336489bf3eed5878299e6cc045bbad077

 kernel/drivers/vfio/pci/vfio_pci_private.h
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@@ -1,10 +1,7 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * Copyright (C) 2012 Red Hat, Inc.  All rights reserved.
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  *     Author: Alex Williamson <alex.williamson@redhat.com>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  *
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  * Derived from original vfio:
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  * Copyright 2010 Cisco Systems, Inc.  All rights reserved.
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@@ -15,6 +12,8 @@
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 #include <linux/pci.h>
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 #include <linux/irqbypass.h>
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 #include <linux/types.h>
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+#include <linux/uuid.h>
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+#include <linux/notifier.h>
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17
 
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 #ifndef VFIO_PCI_PRIVATE_H
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 #define VFIO_PCI_PRIVATE_H
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@@ -34,12 +33,14 @@
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33
 
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 struct vfio_pci_ioeventfd {
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 	struct list_head	next;
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+	struct vfio_pci_device	*vdev;
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 	struct virqfd		*virqfd;
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 	void __iomem		*addr;
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 	uint64_t		data;
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 	loff_t			pos;
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 	int			bar;
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 	int			count;
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+	bool			test_mem;
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 };
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 struct vfio_pci_irq_ctx {
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@@ -59,6 +60,12 @@
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 		      size_t count, loff_t *ppos, bool iswrite);
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 	void	(*release)(struct vfio_pci_device *vdev,
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 			   struct vfio_pci_region *region);
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+	int	(*mmap)(struct vfio_pci_device *vdev,
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+			struct vfio_pci_region *region,
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+			struct vm_area_struct *vma);
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+	int	(*add_capability)(struct vfio_pci_device *vdev,
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+				  struct vfio_pci_region *region,
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+				  struct vfio_info_cap *caps);
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 };
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 struct vfio_pci_region {
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@@ -76,6 +83,17 @@
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 	struct list_head	res_next;
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 };
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+struct vfio_pci_reflck {
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+	struct kref		kref;
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+	struct mutex		lock;
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+};
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+
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+struct vfio_pci_vf_token {
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+	struct mutex		lock;
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+	uuid_t			uuid;
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+	int			users;
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+};
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+
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 struct vfio_pci_mmap_vma {
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 	struct vm_area_struct	*vma;
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 	struct list_head	vma_next;
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@@ -83,8 +101,8 @@
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 struct vfio_pci_device {
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 	struct pci_dev		*pdev;
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-	void __iomem		*barmap[PCI_STD_RESOURCE_END + 1];
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-	bool			bar_mmap_supported[PCI_STD_RESOURCE_END + 1];
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+	void __iomem		*barmap[PCI_STD_NUM_BARS];
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+	bool			bar_mmap_supported[PCI_STD_NUM_BARS];
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 	u8			*pci_config_map;
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 	u8			*vconfig;
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 	struct perm_bits	*msi_perm;
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@@ -108,7 +126,10 @@
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 	bool			has_vga;
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 	bool			needs_reset;
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 	bool			nointx;
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+	bool			needs_pm_restore;
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 	struct pci_saved_state	*pci_saved_state;
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+	struct pci_saved_state	*pm_save;
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+	struct vfio_pci_reflck	*reflck;
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 	int			refcnt;
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 	int			ioeventfds_nr;
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 	struct eventfd_ctx	*err_trigger;
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@@ -116,6 +137,8 @@
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 	struct list_head	dummy_resources_list;
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 	struct mutex		ioeventfds_lock;
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 	struct list_head	ioeventfds_list;
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+	struct vfio_pci_vf_token	*vf_token;
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+	struct notifier_block	nb;
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 	struct mutex		vma_lock;
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 	struct list_head	vma_list;
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 	struct rw_semaphore	memory_lock;
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@@ -158,6 +181,9 @@
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 					const struct vfio_pci_regops *ops,
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 					size_t size, u32 flags, void *data);
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+extern int vfio_pci_set_power_state(struct vfio_pci_device *vdev,
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+				    pci_power_t state);
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+
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 extern bool __vfio_pci_memory_enabled(struct vfio_pci_device *vdev);
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 extern void vfio_pci_zap_and_down_write_memory_lock(struct vfio_pci_device
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 						    *vdev);
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@@ -173,4 +199,30 @@
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 	return -ENODEV;
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 }
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 #endif
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+#ifdef CONFIG_VFIO_PCI_NVLINK2
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+extern int vfio_pci_nvdia_v100_nvlink2_init(struct vfio_pci_device *vdev);
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+extern int vfio_pci_ibm_npu2_init(struct vfio_pci_device *vdev);
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+#else
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+static inline int vfio_pci_nvdia_v100_nvlink2_init(struct vfio_pci_device *vdev)
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+{
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+	return -ENODEV;
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+}
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+
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+static inline int vfio_pci_ibm_npu2_init(struct vfio_pci_device *vdev)
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+{
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+	return -ENODEV;
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+}
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+#endif
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+
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+#ifdef CONFIG_VFIO_PCI_ZDEV
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+extern int vfio_pci_info_zdev_add_caps(struct vfio_pci_device *vdev,
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+				       struct vfio_info_cap *caps);
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+#else
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+static inline int vfio_pci_info_zdev_add_caps(struct vfio_pci_device *vdev,
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+					      struct vfio_info_cap *caps)
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+{
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+	return -ENODEV;
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+}
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+#endif
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+
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 #endif /* VFIO_PCI_PRIVATE_H */