pci_pci.c (f41be0f07673849a55ab3dfbba8878b9cb06b133) pci_pci.c (d7be980dbe6961abce6b3e12de0391cbad295f95)
1/*-
2 * Copyright (c) 1994,1995 Stefan Esser, Wolfgang StanglMeier
3 * Copyright (c) 2000 Michael Smith <msmith@freebsd.org>
4 * Copyright (c) 2000 BSDi
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions

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54
55#include "pcib_if.h"
56
57static int pcib_probe(device_t dev);
58static int pcib_suspend(device_t dev);
59static int pcib_resume(device_t dev);
60static int pcib_power_for_sleep(device_t pcib, device_t dev,
61 int *pstate);
1/*-
2 * Copyright (c) 1994,1995 Stefan Esser, Wolfgang StanglMeier
3 * Copyright (c) 2000 Michael Smith <msmith@freebsd.org>
4 * Copyright (c) 2000 BSDi
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions

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54
55#include "pcib_if.h"
56
57static int pcib_probe(device_t dev);
58static int pcib_suspend(device_t dev);
59static int pcib_resume(device_t dev);
60static int pcib_power_for_sleep(device_t pcib, device_t dev,
61 int *pstate);
62static uint16_t pcib_ari_get_rid(device_t pcib, device_t dev);
62static int pcib_ari_get_id(device_t pcib, device_t dev,
63 enum pci_id_type type, uintptr_t *id);
63static uint32_t pcib_read_config(device_t dev, u_int b, u_int s,
64 u_int f, u_int reg, int width);
65static void pcib_write_config(device_t dev, u_int b, u_int s,
66 u_int f, u_int reg, uint32_t val, int width);
67static int pcib_ari_maxslots(device_t dev);
68static int pcib_ari_maxfuncs(device_t dev);
69static int pcib_try_enable_ari(device_t pcib, device_t dev);
70static int pcib_ari_enabled(device_t pcib);

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109 DEVMETHOD(pcib_write_config, pcib_write_config),
110 DEVMETHOD(pcib_route_interrupt, pcib_route_interrupt),
111 DEVMETHOD(pcib_alloc_msi, pcib_alloc_msi),
112 DEVMETHOD(pcib_release_msi, pcib_release_msi),
113 DEVMETHOD(pcib_alloc_msix, pcib_alloc_msix),
114 DEVMETHOD(pcib_release_msix, pcib_release_msix),
115 DEVMETHOD(pcib_map_msi, pcib_map_msi),
116 DEVMETHOD(pcib_power_for_sleep, pcib_power_for_sleep),
64static uint32_t pcib_read_config(device_t dev, u_int b, u_int s,
65 u_int f, u_int reg, int width);
66static void pcib_write_config(device_t dev, u_int b, u_int s,
67 u_int f, u_int reg, uint32_t val, int width);
68static int pcib_ari_maxslots(device_t dev);
69static int pcib_ari_maxfuncs(device_t dev);
70static int pcib_try_enable_ari(device_t pcib, device_t dev);
71static int pcib_ari_enabled(device_t pcib);

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110 DEVMETHOD(pcib_write_config, pcib_write_config),
111 DEVMETHOD(pcib_route_interrupt, pcib_route_interrupt),
112 DEVMETHOD(pcib_alloc_msi, pcib_alloc_msi),
113 DEVMETHOD(pcib_release_msi, pcib_release_msi),
114 DEVMETHOD(pcib_alloc_msix, pcib_alloc_msix),
115 DEVMETHOD(pcib_release_msix, pcib_release_msix),
116 DEVMETHOD(pcib_map_msi, pcib_map_msi),
117 DEVMETHOD(pcib_power_for_sleep, pcib_power_for_sleep),
117 DEVMETHOD(pcib_get_rid, pcib_ari_get_rid),
118 DEVMETHOD(pcib_get_id, pcib_ari_get_id),
118 DEVMETHOD(pcib_try_enable_ari, pcib_try_enable_ari),
119 DEVMETHOD(pcib_ari_enabled, pcib_ari_enabled),
120 DEVMETHOD(pcib_decode_rid, pcib_ari_decode_rid),
121
122 DEVMETHOD_END
123};
124
125static devclass_t pcib_devclass;

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2569{
2570 struct pcib_softc *sc;
2571
2572 sc = device_get_softc(pcib);
2573
2574 return ((sc->flags & PCIB_ENABLE_ARI) != 0);
2575}
2576
119 DEVMETHOD(pcib_try_enable_ari, pcib_try_enable_ari),
120 DEVMETHOD(pcib_ari_enabled, pcib_ari_enabled),
121 DEVMETHOD(pcib_decode_rid, pcib_ari_decode_rid),
122
123 DEVMETHOD_END
124};
125
126static devclass_t pcib_devclass;

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2570{
2571 struct pcib_softc *sc;
2572
2573 sc = device_get_softc(pcib);
2574
2575 return ((sc->flags & PCIB_ENABLE_ARI) != 0);
2576}
2577
2577static uint16_t
2578pcib_ari_get_rid(device_t pcib, device_t dev)
2578static int
2579pcib_ari_get_id(device_t pcib, device_t dev, enum pci_id_type type,
2580 uintptr_t *id)
2579{
2580 struct pcib_softc *sc;
2581 uint8_t bus, slot, func;
2582
2581{
2582 struct pcib_softc *sc;
2583 uint8_t bus, slot, func;
2584
2585 if (type != PCI_ID_RID)
2586 return (ENXIO);
2587
2583 sc = device_get_softc(pcib);
2584
2585 if (sc->flags & PCIB_ENABLE_ARI) {
2586 bus = pci_get_bus(dev);
2587 func = pci_get_function(dev);
2588
2588 sc = device_get_softc(pcib);
2589
2590 if (sc->flags & PCIB_ENABLE_ARI) {
2591 bus = pci_get_bus(dev);
2592 func = pci_get_function(dev);
2593
2589 return (PCI_ARI_RID(bus, func));
2594 *id = (PCI_ARI_RID(bus, func));
2590 } else {
2591 bus = pci_get_bus(dev);
2592 slot = pci_get_slot(dev);
2593 func = pci_get_function(dev);
2594
2595 } else {
2596 bus = pci_get_bus(dev);
2597 slot = pci_get_slot(dev);
2598 func = pci_get_function(dev);
2599
2595 return (PCI_RID(bus, slot, func));
2600 *id = (PCI_RID(bus, slot, func));
2596 }
2601 }
2602
2603 return (0);
2597}
2598
2599/*
2600 * Check that the downstream port (pcib) and the endpoint device (dev) both
2601 * support ARI. If so, enable it and return 0, otherwise return an error.
2602 */
2603static int
2604pcib_try_enable_ari(device_t pcib, device_t dev)

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2605
2606/*
2607 * Check that the downstream port (pcib) and the endpoint device (dev) both
2608 * support ARI. If so, enable it and return 0, otherwise return an error.
2609 */
2610static int
2611pcib_try_enable_ari(device_t pcib, device_t dev)

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