1 #include <sys/cdefs.h> 2 __KERNEL_RCSID(0, "$NetBSD: pci_stub.c,v 1.8 2018/06/24 11:51:15 jdolecek Exp $"); 3 4 #ifdef _KERNEL_OPT 5 #include "opt_pci.h" 6 #endif 7 8 #include <sys/param.h> 9 #include <sys/systm.h> 10 #include <sys/kmem.h> 11 12 #include <dev/pci/pcireg.h> 13 #include <dev/pci/pcivar.h> 14 #include <dev/pci/pcidevs.h> 15 16 int default_pci_bus_devorder(pci_chipset_tag_t, int, uint8_t *, int); 17 int default_pci_chipset_tag_create(pci_chipset_tag_t, uint64_t, 18 const struct pci_overrides *, void *, pci_chipset_tag_t *); 19 void default_pci_chipset_tag_destroy(pci_chipset_tag_t); 20 void *default_pci_intr_establish_xname(pci_chipset_tag_t, pci_intr_handle_t, 21 int, int (*)(void *), void *, const char *); 22 23 __strict_weak_alias(pci_bus_devorder, default_pci_bus_devorder); 24 __strict_weak_alias(pci_chipset_tag_create, default_pci_chipset_tag_create); 25 __strict_weak_alias(pci_chipset_tag_destroy, default_pci_chipset_tag_destroy); 26 __strict_weak_alias(pci_intr_establish_xname, 27 default_pci_intr_establish_xname); 28 29 int 30 default_pci_bus_devorder(pci_chipset_tag_t pc, int bus, uint8_t *devs, 31 int maxdevs) 32 { 33 int i, n; 34 35 n = MIN(pci_bus_maxdevs(pc, bus), maxdevs); 36 for (i = 0; i < n; i++) 37 devs[i] = i; 38 39 return n; 40 } 41 42 void 43 default_pci_chipset_tag_destroy(pci_chipset_tag_t pc) 44 { 45 } 46 47 int 48 default_pci_chipset_tag_create(pci_chipset_tag_t opc, const uint64_t present, 49 const struct pci_overrides *ov, void *ctx, pci_chipset_tag_t *pcp) 50 { 51 return EOPNOTSUPP; 52 } 53 54 void * 55 default_pci_intr_establish_xname(pci_chipset_tag_t pc, pci_intr_handle_t ih, 56 int level, int (*func)(void *), void *arg, const char *__nouse) 57 { 58 59 return pci_intr_establish(pc, ih, level, func, arg); 60 } 61 62 #ifndef __HAVE_PCI_MSI_MSIX 63 pci_intr_type_t 64 pci_intr_type(pci_chipset_tag_t pc, pci_intr_handle_t ih) 65 { 66 67 return PCI_INTR_TYPE_INTX; 68 } 69 70 int 71 pci_intr_alloc(const struct pci_attach_args *pa, pci_intr_handle_t **ihps, 72 int *counts, pci_intr_type_t max_type) 73 { 74 75 if (counts != NULL && counts[PCI_INTR_TYPE_INTX] == 0) 76 return EINVAL; 77 78 return pci_intx_alloc(pa, ihps); 79 } 80 81 void 82 pci_intr_release(pci_chipset_tag_t pc, pci_intr_handle_t *pih, int count) 83 { 84 85 kmem_free(pih, sizeof(*pih)); 86 } 87 88 int 89 pci_intx_alloc(const struct pci_attach_args *pa, pci_intr_handle_t **ihp) 90 { 91 pci_intr_handle_t *pih; 92 93 if (ihp == NULL) 94 return EINVAL; 95 96 pih = kmem_alloc(sizeof(*pih), KM_SLEEP); 97 if (pci_intr_map(pa, pih)) { 98 kmem_free(pih, sizeof(*pih)); 99 return EINVAL; 100 } 101 102 *ihp = pih; 103 return 0; 104 } 105 106 int 107 pci_msi_alloc(const struct pci_attach_args *pa, pci_intr_handle_t **ihps, 108 int *count) 109 { 110 111 return EOPNOTSUPP; 112 } 113 114 int 115 pci_msi_alloc_exact(const struct pci_attach_args *pa, pci_intr_handle_t **ihps, 116 int count) 117 { 118 119 return EOPNOTSUPP; 120 } 121 122 int 123 pci_msix_alloc(const struct pci_attach_args *pa, pci_intr_handle_t **ihps, 124 int *count) 125 { 126 127 return EOPNOTSUPP; 128 } 129 130 int 131 pci_msix_alloc_exact(const struct pci_attach_args *pa, pci_intr_handle_t **ihps, 132 int count) 133 { 134 135 return EOPNOTSUPP; 136 } 137 138 int 139 pci_msix_alloc_map(const struct pci_attach_args *pa, pci_intr_handle_t **ihps, 140 u_int *table_indexes, int count) 141 { 142 143 return EOPNOTSUPP; 144 } 145 #endif /* __HAVE_PCI_MSI_MSIX */ 146