cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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cpci_hotplug.h (2746B)

      1/* SPDX-License-Identifier: GPL-2.0+ */
      2/*
      3 * CompactPCI Hot Plug Core Functions
      4 *
      5 * Copyright (C) 2002 SOMA Networks, Inc.
      6 * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
      7 * Copyright (C) 2001 IBM Corp.
      8 *
      9 * All rights reserved.
     10 *
     11 * Send feedback to <scottm@somanetworks.com>
     12 */
     13
     14#ifndef _CPCI_HOTPLUG_H
     15#define _CPCI_HOTPLUG_H
     16
     17#include <linux/types.h>
     18#include <linux/pci.h>
     19#include <linux/pci_hotplug.h>
     20
     21/* PICMG 2.1 R2.0 HS CSR bits: */
     22#define HS_CSR_INS	0x0080
     23#define HS_CSR_EXT	0x0040
     24#define HS_CSR_PI	0x0030
     25#define HS_CSR_LOO	0x0008
     26#define HS_CSR_PIE	0x0004
     27#define HS_CSR_EIM	0x0002
     28#define HS_CSR_DHA	0x0001
     29
     30struct slot {
     31	u8 number;
     32	unsigned int devfn;
     33	struct pci_bus *bus;
     34	struct pci_dev *dev;
     35	unsigned int latch_status:1;
     36	unsigned int adapter_status:1;
     37	unsigned int extracting;
     38	struct hotplug_slot hotplug_slot;
     39	struct list_head slot_list;
     40};
     41
     42struct cpci_hp_controller_ops {
     43	int (*query_enum)(void);
     44	int (*enable_irq)(void);
     45	int (*disable_irq)(void);
     46	int (*check_irq)(void *dev_id);
     47	int (*hardware_test)(struct slot *slot, u32 value);
     48	u8  (*get_power)(struct slot *slot);
     49	int (*set_power)(struct slot *slot, int value);
     50};
     51
     52struct cpci_hp_controller {
     53	unsigned int irq;
     54	unsigned long irq_flags;
     55	char *devname;
     56	void *dev_id;
     57	char *name;
     58	struct cpci_hp_controller_ops *ops;
     59};
     60
     61static inline const char *slot_name(struct slot *slot)
     62{
     63	return hotplug_slot_name(&slot->hotplug_slot);
     64}
     65
     66static inline struct slot *to_slot(struct hotplug_slot *hotplug_slot)
     67{
     68	return container_of(hotplug_slot, struct slot, hotplug_slot);
     69}
     70
     71int cpci_hp_register_controller(struct cpci_hp_controller *controller);
     72int cpci_hp_unregister_controller(struct cpci_hp_controller *controller);
     73int cpci_hp_register_bus(struct pci_bus *bus, u8 first, u8 last);
     74int cpci_hp_unregister_bus(struct pci_bus *bus);
     75int cpci_hp_start(void);
     76int cpci_hp_stop(void);
     77
     78/* Global variables */
     79extern int cpci_debug;
     80
     81/*
     82 * Internal function prototypes, these functions should not be used by
     83 * board/chassis drivers.
     84 */
     85u8 cpci_get_attention_status(struct slot *slot);
     86u8 cpci_get_latch_status(struct slot *slot);
     87u8 cpci_get_adapter_status(struct slot *slot);
     88u16 cpci_get_hs_csr(struct slot *slot);
     89int cpci_set_attention_status(struct slot *slot, int status);
     90int cpci_check_and_clear_ins(struct slot *slot);
     91int cpci_check_ext(struct slot *slot);
     92int cpci_clear_ext(struct slot *slot);
     93int cpci_led_on(struct slot *slot);
     94int cpci_led_off(struct slot *slot);
     95int cpci_configure_slot(struct slot *slot);
     96int cpci_unconfigure_slot(struct slot *slot);
     97
     98#ifdef CONFIG_HOTPLUG_PCI_CPCI
     99int cpci_hotplug_init(int debug);
    100#else
    101static inline int cpci_hotplug_init(int debug) { return 0; }
    102#endif
    103
    104#endif	/* _CPCI_HOTPLUG_H */