/*
* The PCI Library
*
- * Copyright (c) 1997--2018 Martin Mares <mj@ucw.cz>
+ * Copyright (c) 1997--2020 Martin Mares <mj@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#include "header.h"
#include "types.h"
-#define PCI_LIB_VERSION 0x030602
+#define PCI_LIB_VERSION 0x030604
#ifndef PCI_ABI
#define PCI_ABI
PCI_ACCESS_OBSD_DEVICE, /* OpenBSD /dev/pci */
PCI_ACCESS_DUMP, /* Dump file */
PCI_ACCESS_DARWIN, /* Darwin */
- PCI_ACCESS_SYLIXOS_DEVICE, /* SylixOS pci */
+ PCI_ACCESS_SYLIXOS_DEVICE, /* SylixOS pci */
+ PCI_ACCESS_HURD, /* GNU/Hurd */
PCI_ACCESS_MAX
};
u8 bus, dev, func; /* Bus inside domain, device and function */
/* These fields are set by pci_fill_info() */
- int known_fields; /* Set of info fields already known */
+ unsigned int known_fields; /* Set of info fields already known (see pci_fill_info()) */
u16 vendor_id, device_id; /* Identity of the device */
u16 device_class; /* PCI device class */
int irq; /* IRQ number */
u8 *cache; /* Cached config registers */
int cache_len;
int hdrtype; /* Cached low 7 bits of header type, -1 if unknown */
- void *aux; /* Auxiliary data */
+ void *aux; /* Auxiliary data for use by the back-end */
struct pci_property *properties; /* A linked list of extra properties */
struct pci_cap *last_cap; /* Last capability in the list */
};
*
* Some properties are stored directly in the pci_dev structure.
* The remaining ones can be accessed through pci_get_string_property().
+ *
+ * pci_fill_info() returns the current value of pci_dev->known_fields.
+ * This is a bit mask of all fields, which were already obtained during
+ * the lifetime of the device. This includes fields which are not supported
+ * by the particular device -- in that case, the field is left at its default
+ * value, which is 0 for integer fields and NULL for pointers. On the other
+ * hand, we never consider known fields unsupported by the current back-end;
+ * such fields always contain the default value.
+ *
+ * XXX: flags and the result should be unsigned, but we do not want to break the ABI.
*/
int pci_fill_info(struct pci_dev *, int flags) PCI_ABI;
#define PCI_FILL_NUMA_NODE 0x0800
#define PCI_FILL_IO_FLAGS 0x1000
#define PCI_FILL_DT_NODE 0x2000 /* Device tree node */
+#define PCI_FILL_IOMMU_GROUP 0x4000
#define PCI_FILL_RESCAN 0x00010000
void pci_setup_cache(struct pci_dev *, u8 *cache, int len) PCI_ABI;