18d59ecb2SHans Petter Selasky /*- 28d59ecb2SHans Petter Selasky * Copyright (c) 2010 Isilon Systems, Inc. 38d59ecb2SHans Petter Selasky * Copyright (c) 2010 iX Systems, Inc. 48d59ecb2SHans Petter Selasky * Copyright (c) 2010 Panasas, Inc. 5bdff61f8SHans Petter Selasky * Copyright (c) 2013-2016 Mellanox Technologies, Ltd. 68d59ecb2SHans Petter Selasky * All rights reserved. 7c41d8354SBjoern A. Zeeb * Copyright (c) 2020-2022 The FreeBSD Foundation 8d4a4960cSBjoern A. Zeeb * 9d4a4960cSBjoern A. Zeeb * Portions of this software were developed by Björn Zeeb 10d4a4960cSBjoern A. Zeeb * under sponsorship from the FreeBSD Foundation. 118d59ecb2SHans Petter Selasky * 128d59ecb2SHans Petter Selasky * Redistribution and use in source and binary forms, with or without 138d59ecb2SHans Petter Selasky * modification, are permitted provided that the following conditions 148d59ecb2SHans Petter Selasky * are met: 158d59ecb2SHans Petter Selasky * 1. Redistributions of source code must retain the above copyright 168d59ecb2SHans Petter Selasky * notice unmodified, this list of conditions, and the following 178d59ecb2SHans Petter Selasky * disclaimer. 188d59ecb2SHans Petter Selasky * 2. Redistributions in binary form must reproduce the above copyright 198d59ecb2SHans Petter Selasky * notice, this list of conditions and the following disclaimer in the 208d59ecb2SHans Petter Selasky * documentation and/or other materials provided with the distribution. 218d59ecb2SHans Petter Selasky * 228d59ecb2SHans Petter Selasky * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 238d59ecb2SHans Petter Selasky * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 248d59ecb2SHans Petter Selasky * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 258d59ecb2SHans Petter Selasky * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 268d59ecb2SHans Petter Selasky * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 278d59ecb2SHans Petter Selasky * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 288d59ecb2SHans Petter Selasky * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 298d59ecb2SHans Petter Selasky * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 308d59ecb2SHans Petter Selasky * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 318d59ecb2SHans Petter Selasky * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 328d59ecb2SHans Petter Selasky * 338d59ecb2SHans Petter Selasky * $FreeBSD$ 348d59ecb2SHans Petter Selasky */ 35307f78f3SVladimir Kondratyev #ifndef _LINUXKPI_LINUX_PCI_H_ 36307f78f3SVladimir Kondratyev #define _LINUXKPI_LINUX_PCI_H_ 378d59ecb2SHans Petter Selasky 388d59ecb2SHans Petter Selasky #define CONFIG_PCI_MSI 398d59ecb2SHans Petter Selasky 408d59ecb2SHans Petter Selasky #include <linux/types.h> 418d59ecb2SHans Petter Selasky 428d59ecb2SHans Petter Selasky #include <sys/param.h> 438d59ecb2SHans Petter Selasky #include <sys/bus.h> 445493c627SBjoern A. Zeeb #include <sys/module.h> 452928e60eSKonstantin Belousov #include <sys/nv.h> 468d59ecb2SHans Petter Selasky #include <sys/pciio.h> 478d59ecb2SHans Petter Selasky #include <sys/rman.h> 488d59ecb2SHans Petter Selasky #include <dev/pci/pcivar.h> 498d59ecb2SHans Petter Selasky #include <dev/pci/pcireg.h> 508d59ecb2SHans Petter Selasky #include <dev/pci/pci_private.h> 518d59ecb2SHans Petter Selasky 528d59ecb2SHans Petter Selasky #include <machine/resource.h> 538d59ecb2SHans Petter Selasky 548d59ecb2SHans Petter Selasky #include <linux/list.h> 558d59ecb2SHans Petter Selasky #include <linux/dmapool.h> 568d59ecb2SHans Petter Selasky #include <linux/dma-mapping.h> 578d59ecb2SHans Petter Selasky #include <linux/compiler.h> 588d59ecb2SHans Petter Selasky #include <linux/errno.h> 598d59ecb2SHans Petter Selasky #include <asm/atomic.h> 608d59ecb2SHans Petter Selasky #include <linux/device.h> 615a402a3aSBjoern A. Zeeb #include <linux/pci_ids.h> 620e981d79SBjoern A. Zeeb #include <linux/pm.h> 638d59ecb2SHans Petter Selasky 648d59ecb2SHans Petter Selasky struct pci_device_id { 658d59ecb2SHans Petter Selasky uint32_t vendor; 668d59ecb2SHans Petter Selasky uint32_t device; 678d59ecb2SHans Petter Selasky uint32_t subvendor; 688d59ecb2SHans Petter Selasky uint32_t subdevice; 696373e95eSMark Johnston uint32_t class; 708d59ecb2SHans Petter Selasky uint32_t class_mask; 718d59ecb2SHans Petter Selasky uintptr_t driver_data; 728d59ecb2SHans Petter Selasky }; 738d59ecb2SHans Petter Selasky 745493c627SBjoern A. Zeeb /* Linux has an empty element at the end of the ID table -> nitems() - 1. */ 755493c627SBjoern A. Zeeb #define MODULE_DEVICE_TABLE(_bus, _table) \ 765493c627SBjoern A. Zeeb \ 775493c627SBjoern A. Zeeb static device_method_t _ ## _bus ## _ ## _table ## _methods[] = { \ 785493c627SBjoern A. Zeeb DEVMETHOD_END \ 795493c627SBjoern A. Zeeb }; \ 805493c627SBjoern A. Zeeb \ 815493c627SBjoern A. Zeeb static driver_t _ ## _bus ## _ ## _table ## _driver = { \ 825493c627SBjoern A. Zeeb "lkpi_" #_bus #_table, \ 835493c627SBjoern A. Zeeb _ ## _bus ## _ ## _table ## _methods, \ 845493c627SBjoern A. Zeeb 0 \ 855493c627SBjoern A. Zeeb }; \ 865493c627SBjoern A. Zeeb \ 875493c627SBjoern A. Zeeb DRIVER_MODULE(lkpi_ ## _table, pci, _ ## _bus ## _ ## _table ## _driver,\ 88a65d0774SJohn Baldwin 0, 0); \ 895493c627SBjoern A. Zeeb \ 905493c627SBjoern A. Zeeb MODULE_PNP_INFO("U32:vendor;U32:device;V32:subvendor;V32:subdevice", \ 915493c627SBjoern A. Zeeb _bus, lkpi_ ## _table, _table, nitems(_table) - 1) 92ecf29cf1SMark Johnston 93232028b3SHans Petter Selasky #define PCI_ANY_ID -1U 948d59ecb2SHans Petter Selasky 958d59ecb2SHans Petter Selasky #define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07)) 968d59ecb2SHans Petter Selasky #define PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f) 978d59ecb2SHans Petter Selasky #define PCI_FUNC(devfn) ((devfn) & 0x07) 9813a5c70bSHans Petter Selasky #define PCI_BUS_NUM(devfn) (((devfn) >> 8) & 0xff) 998d59ecb2SHans Petter Selasky 1008d59ecb2SHans Petter Selasky #define PCI_VDEVICE(_vendor, _device) \ 1018d59ecb2SHans Petter Selasky .vendor = PCI_VENDOR_ID_##_vendor, .device = (_device), \ 1028d59ecb2SHans Petter Selasky .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID 1038d59ecb2SHans Petter Selasky #define PCI_DEVICE(_vendor, _device) \ 1048d59ecb2SHans Petter Selasky .vendor = (_vendor), .device = (_device), \ 1058d59ecb2SHans Petter Selasky .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID 1068d59ecb2SHans Petter Selasky 1078d59ecb2SHans Petter Selasky #define to_pci_dev(n) container_of(n, struct pci_dev, dev) 1088d59ecb2SHans Petter Selasky 109c41d8354SBjoern A. Zeeb #define PCI_VENDOR_ID PCIR_VENDOR 110c41d8354SBjoern A. Zeeb #define PCI_DEVICE_ID PCIR_DEVICE 1118d59ecb2SHans Petter Selasky #define PCI_COMMAND PCIR_COMMAND 112fc1d8409SBjoern A. Zeeb #define PCI_COMMAND_INTX_DISABLE PCIM_CMD_INTxDIS 1138d59ecb2SHans Petter Selasky #define PCI_EXP_DEVCTL PCIER_DEVICE_CTL /* Device Control */ 1148d59ecb2SHans Petter Selasky #define PCI_EXP_LNKCTL PCIER_LINK_CTL /* Link Control */ 115fc1d8409SBjoern A. Zeeb #define PCI_EXP_LNKCTL_ASPM_L0S PCIEM_LINK_CTL_ASPMC_L0S 116fc1d8409SBjoern A. Zeeb #define PCI_EXP_LNKCTL_ASPM_L1 PCIEM_LINK_CTL_ASPMC_L1 117c4f52f71SBjoern A. Zeeb #define PCI_EXP_LNKCTL_ASPMC PCIEM_LINK_CTL_ASPMC 118fc1d8409SBjoern A. Zeeb #define PCI_EXP_LNKCTL_CLKREQ_EN PCIEM_LINK_CTL_ECPM /* Enable clock PM */ 119c4f52f71SBjoern A. Zeeb #define PCI_EXP_LNKCTL_HAWD PCIEM_LINK_CTL_HAWD 1208d59ecb2SHans Petter Selasky #define PCI_EXP_FLAGS_TYPE PCIEM_FLAGS_TYPE /* Device/Port type */ 1218d59ecb2SHans Petter Selasky #define PCI_EXP_DEVCAP PCIER_DEVICE_CAP /* Device capabilities */ 1228d59ecb2SHans Petter Selasky #define PCI_EXP_DEVSTA PCIER_DEVICE_STA /* Device Status */ 1238d59ecb2SHans Petter Selasky #define PCI_EXP_LNKCAP PCIER_LINK_CAP /* Link Capabilities */ 1248d59ecb2SHans Petter Selasky #define PCI_EXP_LNKSTA PCIER_LINK_STA /* Link Status */ 1258d59ecb2SHans Petter Selasky #define PCI_EXP_SLTCAP PCIER_SLOT_CAP /* Slot Capabilities */ 1268d59ecb2SHans Petter Selasky #define PCI_EXP_SLTCTL PCIER_SLOT_CTL /* Slot Control */ 1278d59ecb2SHans Petter Selasky #define PCI_EXP_SLTSTA PCIER_SLOT_STA /* Slot Status */ 1288d59ecb2SHans Petter Selasky #define PCI_EXP_RTCTL PCIER_ROOT_CTL /* Root Control */ 1298d59ecb2SHans Petter Selasky #define PCI_EXP_RTCAP PCIER_ROOT_CAP /* Root Capabilities */ 1308d59ecb2SHans Petter Selasky #define PCI_EXP_RTSTA PCIER_ROOT_STA /* Root Status */ 1318d59ecb2SHans Petter Selasky #define PCI_EXP_DEVCAP2 PCIER_DEVICE_CAP2 /* Device Capabilities 2 */ 1328d59ecb2SHans Petter Selasky #define PCI_EXP_DEVCTL2 PCIER_DEVICE_CTL2 /* Device Control 2 */ 133fc1d8409SBjoern A. Zeeb #define PCI_EXP_DEVCTL2_LTR_EN PCIEM_CTL2_LTR_ENABLE 13485eb99f9SBjoern A. Zeeb #define PCI_EXP_DEVCTL2_COMP_TMOUT_DIS PCIEM_CTL2_COMP_TIMO_DISABLE 1358d59ecb2SHans Petter Selasky #define PCI_EXP_LNKCAP2 PCIER_LINK_CAP2 /* Link Capabilities 2 */ 1368d59ecb2SHans Petter Selasky #define PCI_EXP_LNKCTL2 PCIER_LINK_CTL2 /* Link Control 2 */ 1378d59ecb2SHans Petter Selasky #define PCI_EXP_LNKSTA2 PCIER_LINK_STA2 /* Link Status 2 */ 1388d59ecb2SHans Petter Selasky #define PCI_EXP_FLAGS PCIER_FLAGS /* Capabilities register */ 1398d59ecb2SHans Petter Selasky #define PCI_EXP_FLAGS_VERS PCIEM_FLAGS_VERSION /* Capability version */ 1408d59ecb2SHans Petter Selasky #define PCI_EXP_TYPE_ROOT_PORT PCIEM_TYPE_ROOT_PORT /* Root Port */ 1418d59ecb2SHans Petter Selasky #define PCI_EXP_TYPE_ENDPOINT PCIEM_TYPE_ENDPOINT /* Express Endpoint */ 1428d59ecb2SHans Petter Selasky #define PCI_EXP_TYPE_LEG_END PCIEM_TYPE_LEGACY_ENDPOINT /* Legacy Endpoint */ 1438d59ecb2SHans Petter Selasky #define PCI_EXP_TYPE_DOWNSTREAM PCIEM_TYPE_DOWNSTREAM_PORT /* Downstream Port */ 1448d59ecb2SHans Petter Selasky #define PCI_EXP_FLAGS_SLOT PCIEM_FLAGS_SLOT /* Slot implemented */ 1458d59ecb2SHans Petter Selasky #define PCI_EXP_TYPE_RC_EC PCIEM_TYPE_ROOT_EC /* Root Complex Event Collector */ 146a65ef215SHans Petter Selasky #define PCI_EXP_LNKCAP_SLS_2_5GB 0x01 /* Supported Link Speed 2.5GT/s */ 147a65ef215SHans Petter Selasky #define PCI_EXP_LNKCAP_SLS_5_0GB 0x02 /* Supported Link Speed 5.0GT/s */ 148ab62989aSHans Petter Selasky #define PCI_EXP_LNKCAP_SLS_8_0GB 0x04 /* Supported Link Speed 8.0GT/s */ 149ab62989aSHans Petter Selasky #define PCI_EXP_LNKCAP_SLS_16_0GB 0x08 /* Supported Link Speed 16.0GT/s */ 150a65ef215SHans Petter Selasky #define PCI_EXP_LNKCAP_MLW 0x03f0 /* Maximum Link Width */ 151a65ef215SHans Petter Selasky #define PCI_EXP_LNKCAP2_SLS_2_5GB 0x02 /* Supported Link Speed 2.5GT/s */ 152a65ef215SHans Petter Selasky #define PCI_EXP_LNKCAP2_SLS_5_0GB 0x04 /* Supported Link Speed 5.0GT/s */ 153a65ef215SHans Petter Selasky #define PCI_EXP_LNKCAP2_SLS_8_0GB 0x08 /* Supported Link Speed 8.0GT/s */ 154ab62989aSHans Petter Selasky #define PCI_EXP_LNKCAP2_SLS_16_0GB 0x10 /* Supported Link Speed 16.0GT/s */ 15578a02d8bSVladimir Kondratyev #define PCI_EXP_LNKCTL2_TLS 0x000f 15678a02d8bSVladimir Kondratyev #define PCI_EXP_LNKCTL2_TLS_2_5GT 0x0001 /* Supported Speed 2.5GT/s */ 15778a02d8bSVladimir Kondratyev #define PCI_EXP_LNKCTL2_TLS_5_0GT 0x0002 /* Supported Speed 5GT/s */ 15878a02d8bSVladimir Kondratyev #define PCI_EXP_LNKCTL2_TLS_8_0GT 0x0003 /* Supported Speed 8GT/s */ 15978a02d8bSVladimir Kondratyev #define PCI_EXP_LNKCTL2_TLS_16_0GT 0x0004 /* Supported Speed 16GT/s */ 16078a02d8bSVladimir Kondratyev #define PCI_EXP_LNKCTL2_TLS_32_0GT 0x0005 /* Supported Speed 32GT/s */ 16178a02d8bSVladimir Kondratyev #define PCI_EXP_LNKCTL2_ENTER_COMP 0x0010 /* Enter Compliance */ 16278a02d8bSVladimir Kondratyev #define PCI_EXP_LNKCTL2_TX_MARGIN 0x0380 /* Transmit Margin */ 1638d59ecb2SHans Petter Selasky 16412af734dSHans Petter Selasky #define PCI_EXP_LNKCAP_CLKPM 0x00040000 16512af734dSHans Petter Selasky #define PCI_EXP_DEVSTA_TRPND 0x0020 16612af734dSHans Petter Selasky 167bdff61f8SHans Petter Selasky #define IORESOURCE_MEM (1 << SYS_RES_MEMORY) 168bdff61f8SHans Petter Selasky #define IORESOURCE_IO (1 << SYS_RES_IOPORT) 169bdff61f8SHans Petter Selasky #define IORESOURCE_IRQ (1 << SYS_RES_IRQ) 1708d59ecb2SHans Petter Selasky 171a65ef215SHans Petter Selasky enum pci_bus_speed { 172a65ef215SHans Petter Selasky PCI_SPEED_UNKNOWN = -1, 173a65ef215SHans Petter Selasky PCIE_SPEED_2_5GT, 174a65ef215SHans Petter Selasky PCIE_SPEED_5_0GT, 175a65ef215SHans Petter Selasky PCIE_SPEED_8_0GT, 176ab62989aSHans Petter Selasky PCIE_SPEED_16_0GT, 177a65ef215SHans Petter Selasky }; 1788d59ecb2SHans Petter Selasky 179a65ef215SHans Petter Selasky enum pcie_link_width { 180ab62989aSHans Petter Selasky PCIE_LNK_WIDTH_RESRV = 0x00, 181ab62989aSHans Petter Selasky PCIE_LNK_X1 = 0x01, 182ab62989aSHans Petter Selasky PCIE_LNK_X2 = 0x02, 183ab62989aSHans Petter Selasky PCIE_LNK_X4 = 0x04, 184ab62989aSHans Petter Selasky PCIE_LNK_X8 = 0x08, 185ab62989aSHans Petter Selasky PCIE_LNK_X12 = 0x0c, 186ab62989aSHans Petter Selasky PCIE_LNK_X16 = 0x10, 187ab62989aSHans Petter Selasky PCIE_LNK_X32 = 0x20, 188ab62989aSHans Petter Selasky PCIE_LNK_WIDTH_UNKNOWN = 0xff, 189a65ef215SHans Petter Selasky }; 190a65ef215SHans Petter Selasky 191fc1d8409SBjoern A. Zeeb #define PCIE_LINK_STATE_L0S 0x00000001 192fc1d8409SBjoern A. Zeeb #define PCIE_LINK_STATE_L1 0x00000002 193fc1d8409SBjoern A. Zeeb #define PCIE_LINK_STATE_CLKPM 0x00000004 194fc1d8409SBjoern A. Zeeb 19512af734dSHans Petter Selasky typedef int pci_power_t; 19612af734dSHans Petter Selasky 19712af734dSHans Petter Selasky #define PCI_D0 PCI_POWERSTATE_D0 19812af734dSHans Petter Selasky #define PCI_D1 PCI_POWERSTATE_D1 19912af734dSHans Petter Selasky #define PCI_D2 PCI_POWERSTATE_D2 20012af734dSHans Petter Selasky #define PCI_D3hot PCI_POWERSTATE_D3 20112af734dSHans Petter Selasky #define PCI_D3cold 4 20212af734dSHans Petter Selasky 20312af734dSHans Petter Selasky #define PCI_POWER_ERROR PCI_POWERSTATE_UNKNOWN 20412af734dSHans Petter Selasky 2054cb3cb2dSJake Freeland extern const char *pci_power_names[6]; 2064cb3cb2dSJake Freeland 207fc1d8409SBjoern A. Zeeb #define PCI_ERR_ROOT_COMMAND PCIR_AER_ROOTERR_CMD 208fc1d8409SBjoern A. Zeeb #define PCI_ERR_ROOT_ERR_SRC PCIR_AER_COR_SOURCE_ID 209fc1d8409SBjoern A. Zeeb 210fc1d8409SBjoern A. Zeeb #define PCI_EXT_CAP_ID_ERR PCIZ_AER 211c4f52f71SBjoern A. Zeeb #define PCI_EXT_CAP_ID_L1SS PCIZ_L1PM 212c4f52f71SBjoern A. Zeeb 213c4f52f71SBjoern A. Zeeb #define PCI_L1SS_CTL1 0x8 214c4f52f71SBjoern A. Zeeb #define PCI_L1SS_CTL1_L1SS_MASK 0xf 215fc1d8409SBjoern A. Zeeb 216366d68f2SBjoern A. Zeeb #define PCI_IRQ_LEGACY 0x01 217366d68f2SBjoern A. Zeeb #define PCI_IRQ_MSI 0x02 218366d68f2SBjoern A. Zeeb #define PCI_IRQ_MSIX 0x04 219c41d8354SBjoern A. Zeeb #define PCI_IRQ_ALL_TYPES (PCI_IRQ_MSIX|PCI_IRQ_MSI|PCI_IRQ_LEGACY) 220366d68f2SBjoern A. Zeeb 221a65ef215SHans Petter Selasky struct pci_dev; 2228d59ecb2SHans Petter Selasky 2238d59ecb2SHans Petter Selasky struct pci_driver { 224cf899348SBjoern A. Zeeb struct list_head node; 2258d59ecb2SHans Petter Selasky char *name; 2268d59ecb2SHans Petter Selasky const struct pci_device_id *id_table; 2278d59ecb2SHans Petter Selasky int (*probe)(struct pci_dev *dev, const struct pci_device_id *id); 2288d59ecb2SHans Petter Selasky void (*remove)(struct pci_dev *dev); 2298d59ecb2SHans Petter Selasky int (*suspend) (struct pci_dev *dev, pm_message_t state); /* Device suspended */ 2308d59ecb2SHans Petter Selasky int (*resume) (struct pci_dev *dev); /* Device woken up */ 2317d133393SHans Petter Selasky void (*shutdown) (struct pci_dev *dev); /* Device shutdown */ 232b38dc0a1SMark Johnston driver_t bsddriver; 2338d59ecb2SHans Petter Selasky devclass_t bsdclass; 23488156ba5SMark Johnston struct device_driver driver; 2358d59ecb2SHans Petter Selasky const struct pci_error_handlers *err_handler; 2360b7bd01aSMark Johnston bool isdrm; 237b91dd79bSBjoern A. Zeeb int bsd_probe_return; 2382928e60eSKonstantin Belousov int (*bsd_iov_init)(device_t dev, uint16_t num_vfs, 2392928e60eSKonstantin Belousov const nvlist_t *pf_config); 2402928e60eSKonstantin Belousov void (*bsd_iov_uninit)(device_t dev); 2412928e60eSKonstantin Belousov int (*bsd_iov_add_vf)(device_t dev, uint16_t vfnum, 2422928e60eSKonstantin Belousov const nvlist_t *vf_config); 2430b7bd01aSMark Johnston }; 2440b7bd01aSMark Johnston 2450b7bd01aSMark Johnston struct pci_bus { 2460b7bd01aSMark Johnston struct pci_dev *self; 247937a05baSJustin Hibbits int domain; 2480b7bd01aSMark Johnston int number; 2498d59ecb2SHans Petter Selasky }; 2508d59ecb2SHans Petter Selasky 2518d59ecb2SHans Petter Selasky extern struct list_head pci_drivers; 2528d59ecb2SHans Petter Selasky extern struct list_head pci_devices; 2538d59ecb2SHans Petter Selasky extern spinlock_t pci_lock; 2548d59ecb2SHans Petter Selasky 2558d59ecb2SHans Petter Selasky #define __devexit_p(x) x 2568d59ecb2SHans Petter Selasky 257366d68f2SBjoern A. Zeeb #define module_pci_driver(_driver) \ 258366d68f2SBjoern A. Zeeb \ 259366d68f2SBjoern A. Zeeb static inline int \ 260366d68f2SBjoern A. Zeeb _pci_init(void) \ 261366d68f2SBjoern A. Zeeb { \ 262366d68f2SBjoern A. Zeeb \ 263366d68f2SBjoern A. Zeeb return (linux_pci_register_driver(&_driver)); \ 264366d68f2SBjoern A. Zeeb } \ 265366d68f2SBjoern A. Zeeb \ 266366d68f2SBjoern A. Zeeb static inline void \ 267366d68f2SBjoern A. Zeeb _pci_exit(void) \ 268366d68f2SBjoern A. Zeeb { \ 269366d68f2SBjoern A. Zeeb \ 270366d68f2SBjoern A. Zeeb linux_pci_unregister_driver(&_driver); \ 271366d68f2SBjoern A. Zeeb } \ 272366d68f2SBjoern A. Zeeb \ 273366d68f2SBjoern A. Zeeb module_init(_pci_init); \ 274366d68f2SBjoern A. Zeeb module_exit(_pci_exit) 275366d68f2SBjoern A. Zeeb 276d4a4960cSBjoern A. Zeeb /* 277d4a4960cSBjoern A. Zeeb * If we find drivers accessing this from multiple KPIs we may have to 278d4a4960cSBjoern A. Zeeb * refcount objects of this structure. 279d4a4960cSBjoern A. Zeeb */ 2804c274849SEmmanuel Vadot struct pci_mmio_region { 2814c274849SEmmanuel Vadot TAILQ_ENTRY(pci_mmio_region) next; 2824c274849SEmmanuel Vadot struct resource *res; 2834c274849SEmmanuel Vadot int rid; 2844c274849SEmmanuel Vadot int type; 2854c274849SEmmanuel Vadot }; 2864c274849SEmmanuel Vadot 2878d59ecb2SHans Petter Selasky struct pci_dev { 2888d59ecb2SHans Petter Selasky struct device dev; 2898d59ecb2SHans Petter Selasky struct list_head links; 2908d59ecb2SHans Petter Selasky struct pci_driver *pdrv; 2910b7bd01aSMark Johnston struct pci_bus *bus; 2928e106c52SBjoern A. Zeeb struct pci_dev *root; 2934cb3cb2dSJake Freeland pci_power_t current_state; 2948d59ecb2SHans Petter Selasky uint16_t device; 2958d59ecb2SHans Petter Selasky uint16_t vendor; 296f2ec04a3SMark Johnston uint16_t subsystem_vendor; 297f2ec04a3SMark Johnston uint16_t subsystem_device; 2988d59ecb2SHans Petter Selasky unsigned int irq; 2998d59ecb2SHans Petter Selasky unsigned int devfn; 3006373e95eSMark Johnston uint32_t class; 3016373e95eSMark Johnston uint8_t revision; 302d4a4960cSBjoern A. Zeeb bool managed; /* devres "pcim_*(). */ 303d4a4960cSBjoern A. Zeeb bool want_iomap_res; 3044f109faaSHans Petter Selasky bool msi_enabled; 305d4a4960cSBjoern A. Zeeb bool msix_enabled; 306096104e7SNeel Chauhan phys_addr_t rom; 307096104e7SNeel Chauhan size_t romlen; 3084c274849SEmmanuel Vadot 3094c274849SEmmanuel Vadot TAILQ_HEAD(, pci_mmio_region) mmio; 3108d59ecb2SHans Petter Selasky }; 3118d59ecb2SHans Petter Selasky 312d4a4960cSBjoern A. Zeeb /* We need some meta-struct to keep track of these for devres. */ 313d4a4960cSBjoern A. Zeeb struct pci_devres { 314d4a4960cSBjoern A. Zeeb bool enable_io; 315d4a4960cSBjoern A. Zeeb /* PCIR_MAX_BAR_0 + 1 = 6 => BIT(0..5). */ 316d4a4960cSBjoern A. Zeeb uint8_t region_mask; 317d4a4960cSBjoern A. Zeeb struct resource *region_table[PCIR_MAX_BAR_0 + 1]; /* Not needed. */ 318d4a4960cSBjoern A. Zeeb }; 319d4a4960cSBjoern A. Zeeb struct pcim_iomap_devres { 320d4a4960cSBjoern A. Zeeb void *mmio_table[PCIR_MAX_BAR_0 + 1]; 321d4a4960cSBjoern A. Zeeb struct resource *res_table[PCIR_MAX_BAR_0 + 1]; 322d4a4960cSBjoern A. Zeeb }; 323d4a4960cSBjoern A. Zeeb 3241cdb2534SWarner Losh int pci_request_region(struct pci_dev *pdev, int bar, const char *res_name); 32536b5c440SWarner Losh int pci_alloc_irq_vectors(struct pci_dev *pdev, int minv, int maxv, 32636b5c440SWarner Losh unsigned int flags); 3271cdb2534SWarner Losh 3288e106c52SBjoern A. Zeeb /* Internal helper function(s). */ 3298e106c52SBjoern A. Zeeb struct pci_dev *lkpinew_pci_dev(device_t); 3303ea682e2SWarner Losh struct pci_devres *lkpi_pci_devres_get_alloc(struct pci_dev *pdev); 331d4a4960cSBjoern A. Zeeb void lkpi_pci_devres_release(struct device *, void *); 3321cdb2534SWarner Losh struct resource *_lkpi_pci_iomap(struct pci_dev *pdev, int bar, int mmio_size); 3332bf3361dSWarner Losh struct pcim_iomap_devres *lkpi_pcim_iomap_devres_find(struct pci_dev *pdev); 334d4a4960cSBjoern A. Zeeb void lkpi_pcim_iomap_table_release(struct device *, void *); 3358e106c52SBjoern A. Zeeb 336c41d8354SBjoern A. Zeeb static inline bool 337c41d8354SBjoern A. Zeeb dev_is_pci(struct device *dev) 338c41d8354SBjoern A. Zeeb { 339c41d8354SBjoern A. Zeeb 340c41d8354SBjoern A. Zeeb return (device_get_devclass(dev->bsddev) == devclass_find("pci")); 341c41d8354SBjoern A. Zeeb } 342c41d8354SBjoern A. Zeeb 343d4a4960cSBjoern A. Zeeb static inline int 344d4a4960cSBjoern A. Zeeb pci_resource_type(struct pci_dev *pdev, int bar) 345d4a4960cSBjoern A. Zeeb { 346d4a4960cSBjoern A. Zeeb struct pci_map *pm; 347d4a4960cSBjoern A. Zeeb 348d4a4960cSBjoern A. Zeeb pm = pci_find_bar(pdev->dev.bsddev, PCIR_BAR(bar)); 349d4a4960cSBjoern A. Zeeb if (!pm) 350d4a4960cSBjoern A. Zeeb return (-1); 351d4a4960cSBjoern A. Zeeb 352d4a4960cSBjoern A. Zeeb if (PCI_BAR_IO(pm->pm_value)) 353d4a4960cSBjoern A. Zeeb return (SYS_RES_IOPORT); 354d4a4960cSBjoern A. Zeeb else 355d4a4960cSBjoern A. Zeeb return (SYS_RES_MEMORY); 356d4a4960cSBjoern A. Zeeb } 3578e106c52SBjoern A. Zeeb 35882098c8bSJessica Clarke struct resource_list_entry *linux_pci_reserve_bar(struct pci_dev *pdev, 35982098c8bSJessica Clarke struct resource_list *rl, int type, int rid); 36082098c8bSJessica Clarke 3618d59ecb2SHans Petter Selasky static inline struct resource_list_entry * 36282098c8bSJessica Clarke linux_pci_get_rle(struct pci_dev *pdev, int type, int rid, bool reserve_bar) 3638d59ecb2SHans Petter Selasky { 3648d59ecb2SHans Petter Selasky struct pci_devinfo *dinfo; 3658d59ecb2SHans Petter Selasky struct resource_list *rl; 36682098c8bSJessica Clarke struct resource_list_entry *rle; 3678d59ecb2SHans Petter Selasky 3688d59ecb2SHans Petter Selasky dinfo = device_get_ivars(pdev->dev.bsddev); 3698d59ecb2SHans Petter Selasky rl = &dinfo->resources; 37082098c8bSJessica Clarke rle = resource_list_find(rl, type, rid); 37182098c8bSJessica Clarke /* Reserve resources for this BAR if needed. */ 37282098c8bSJessica Clarke if (rle == NULL && reserve_bar) 37382098c8bSJessica Clarke rle = linux_pci_reserve_bar(pdev, rl, type, rid); 37482098c8bSJessica Clarke return (rle); 3758d59ecb2SHans Petter Selasky } 3768d59ecb2SHans Petter Selasky 3778d59ecb2SHans Petter Selasky static inline struct resource_list_entry * 37882098c8bSJessica Clarke linux_pci_get_bar(struct pci_dev *pdev, int bar, bool reserve) 3798d59ecb2SHans Petter Selasky { 380d4a4960cSBjoern A. Zeeb int type; 3818d59ecb2SHans Petter Selasky 382d4a4960cSBjoern A. Zeeb type = pci_resource_type(pdev, bar); 383d4a4960cSBjoern A. Zeeb if (type < 0) 384d4a4960cSBjoern A. Zeeb return (NULL); 3858d59ecb2SHans Petter Selasky bar = PCIR_BAR(bar); 38682098c8bSJessica Clarke return (linux_pci_get_rle(pdev, type, bar, reserve)); 3878d59ecb2SHans Petter Selasky } 3888d59ecb2SHans Petter Selasky 3898d59ecb2SHans Petter Selasky static inline struct device * 390e996b07cSHans Petter Selasky linux_pci_find_irq_dev(unsigned int irq) 3918d59ecb2SHans Petter Selasky { 3928d59ecb2SHans Petter Selasky struct pci_dev *pdev; 3932f02a9e1SConrad Meyer struct device *found; 3948d59ecb2SHans Petter Selasky 3952f02a9e1SConrad Meyer found = NULL; 3968d59ecb2SHans Petter Selasky spin_lock(&pci_lock); 3978d59ecb2SHans Petter Selasky list_for_each_entry(pdev, &pci_devices, links) { 3982f02a9e1SConrad Meyer if (irq == pdev->dev.irq || 3994f109faaSHans Petter Selasky (irq >= pdev->dev.irq_start && irq < pdev->dev.irq_end)) { 4002f02a9e1SConrad Meyer found = &pdev->dev; 4018d59ecb2SHans Petter Selasky break; 4028d59ecb2SHans Petter Selasky } 4032f02a9e1SConrad Meyer } 4048d59ecb2SHans Petter Selasky spin_unlock(&pci_lock); 4052f02a9e1SConrad Meyer return (found); 4068d59ecb2SHans Petter Selasky } 4078d59ecb2SHans Petter Selasky 4088d59ecb2SHans Petter Selasky /* 4098d59ecb2SHans Petter Selasky * All drivers just seem to want to inspect the type not flags. 4108d59ecb2SHans Petter Selasky */ 4118d59ecb2SHans Petter Selasky static inline int 4128d59ecb2SHans Petter Selasky pci_resource_flags(struct pci_dev *pdev, int bar) 4138d59ecb2SHans Petter Selasky { 414bdff61f8SHans Petter Selasky int type; 4158d59ecb2SHans Petter Selasky 416bdff61f8SHans Petter Selasky type = pci_resource_type(pdev, bar); 417bdff61f8SHans Petter Selasky if (type < 0) 4188d59ecb2SHans Petter Selasky return (0); 419bdff61f8SHans Petter Selasky return (1 << type); 4208d59ecb2SHans Petter Selasky } 4218d59ecb2SHans Petter Selasky 4228d59ecb2SHans Petter Selasky static inline const char * 4238d59ecb2SHans Petter Selasky pci_name(struct pci_dev *d) 4248d59ecb2SHans Petter Selasky { 4258d59ecb2SHans Petter Selasky 4268d59ecb2SHans Petter Selasky return device_get_desc(d->dev.bsddev); 4278d59ecb2SHans Petter Selasky } 4288d59ecb2SHans Petter Selasky 4298d59ecb2SHans Petter Selasky static inline void * 4308d59ecb2SHans Petter Selasky pci_get_drvdata(struct pci_dev *pdev) 4318d59ecb2SHans Petter Selasky { 4328d59ecb2SHans Petter Selasky 4338d59ecb2SHans Petter Selasky return dev_get_drvdata(&pdev->dev); 4348d59ecb2SHans Petter Selasky } 4358d59ecb2SHans Petter Selasky 4368d59ecb2SHans Petter Selasky static inline void 4378d59ecb2SHans Petter Selasky pci_set_drvdata(struct pci_dev *pdev, void *data) 4388d59ecb2SHans Petter Selasky { 4398d59ecb2SHans Petter Selasky 4408d59ecb2SHans Petter Selasky dev_set_drvdata(&pdev->dev, data); 4418d59ecb2SHans Petter Selasky } 4428d59ecb2SHans Petter Selasky 4438e106c52SBjoern A. Zeeb static inline struct pci_dev * 4448e106c52SBjoern A. Zeeb pci_dev_get(struct pci_dev *pdev) 4458e106c52SBjoern A. Zeeb { 4468e106c52SBjoern A. Zeeb 4478e106c52SBjoern A. Zeeb if (pdev != NULL) 4488e106c52SBjoern A. Zeeb get_device(&pdev->dev); 4498e106c52SBjoern A. Zeeb return (pdev); 4508e106c52SBjoern A. Zeeb } 4518e106c52SBjoern A. Zeeb 4521fac2cb4SBjoern A. Zeeb static __inline void 4531fac2cb4SBjoern A. Zeeb pci_dev_put(struct pci_dev *pdev) 4541fac2cb4SBjoern A. Zeeb { 4551fac2cb4SBjoern A. Zeeb 4561fac2cb4SBjoern A. Zeeb if (pdev != NULL) 4571fac2cb4SBjoern A. Zeeb put_device(&pdev->dev); 4581fac2cb4SBjoern A. Zeeb } 4591fac2cb4SBjoern A. Zeeb 4608d59ecb2SHans Petter Selasky static inline int 4618d59ecb2SHans Petter Selasky pci_enable_device(struct pci_dev *pdev) 4628d59ecb2SHans Petter Selasky { 4638d59ecb2SHans Petter Selasky 4648d59ecb2SHans Petter Selasky pci_enable_io(pdev->dev.bsddev, SYS_RES_IOPORT); 4658d59ecb2SHans Petter Selasky pci_enable_io(pdev->dev.bsddev, SYS_RES_MEMORY); 4668d59ecb2SHans Petter Selasky return (0); 4678d59ecb2SHans Petter Selasky } 4688d59ecb2SHans Petter Selasky 4698d59ecb2SHans Petter Selasky static inline void 4708d59ecb2SHans Petter Selasky pci_disable_device(struct pci_dev *pdev) 4718d59ecb2SHans Petter Selasky { 472f67b5de7SMark Johnston 473555deb3cSHans Petter Selasky pci_disable_busmaster(pdev->dev.bsddev); 4748d59ecb2SHans Petter Selasky } 4758d59ecb2SHans Petter Selasky 4768d59ecb2SHans Petter Selasky static inline int 4778d59ecb2SHans Petter Selasky pci_set_master(struct pci_dev *pdev) 4788d59ecb2SHans Petter Selasky { 4798d59ecb2SHans Petter Selasky 4808d59ecb2SHans Petter Selasky pci_enable_busmaster(pdev->dev.bsddev); 4818d59ecb2SHans Petter Selasky return (0); 4828d59ecb2SHans Petter Selasky } 4838d59ecb2SHans Petter Selasky 4848d59ecb2SHans Petter Selasky static inline int 48512af734dSHans Petter Selasky pci_set_power_state(struct pci_dev *pdev, int state) 48612af734dSHans Petter Selasky { 48712af734dSHans Petter Selasky 48812af734dSHans Petter Selasky pci_set_powerstate(pdev->dev.bsddev, state); 48912af734dSHans Petter Selasky return (0); 49012af734dSHans Petter Selasky } 49112af734dSHans Petter Selasky 49212af734dSHans Petter Selasky static inline int 4938d59ecb2SHans Petter Selasky pci_clear_master(struct pci_dev *pdev) 4948d59ecb2SHans Petter Selasky { 4958d59ecb2SHans Petter Selasky 4968d59ecb2SHans Petter Selasky pci_disable_busmaster(pdev->dev.bsddev); 4978d59ecb2SHans Petter Selasky return (0); 4988d59ecb2SHans Petter Selasky } 4998d59ecb2SHans Petter Selasky 500b3b83625SBjoern A. Zeeb static inline bool 501b3b83625SBjoern A. Zeeb pci_is_root_bus(struct pci_bus *pbus) 502b3b83625SBjoern A. Zeeb { 503b3b83625SBjoern A. Zeeb 504b3b83625SBjoern A. Zeeb return (pbus->self == NULL); 505b3b83625SBjoern A. Zeeb } 506b3b83625SBjoern A. Zeeb 507b3b83625SBjoern A. Zeeb static inline struct pci_dev * 508b3b83625SBjoern A. Zeeb pci_upstream_bridge(struct pci_dev *pdev) 509b3b83625SBjoern A. Zeeb { 510b3b83625SBjoern A. Zeeb 511b3b83625SBjoern A. Zeeb if (pci_is_root_bus(pdev->bus)) 512b3b83625SBjoern A. Zeeb return (NULL); 513b3b83625SBjoern A. Zeeb 514b3b83625SBjoern A. Zeeb /* 515b3b83625SBjoern A. Zeeb * If we do not have a (proper) "upstream bridge" set, e.g., we point 516b3b83625SBjoern A. Zeeb * to ourselves, try to handle this case on the fly like we do 517b3b83625SBjoern A. Zeeb * for pcie_find_root_port(). 518b3b83625SBjoern A. Zeeb */ 519b3b83625SBjoern A. Zeeb if (pdev == pdev->bus->self) { 520b3b83625SBjoern A. Zeeb device_t bridge; 521b3b83625SBjoern A. Zeeb 522b3b83625SBjoern A. Zeeb bridge = device_get_parent(pdev->dev.bsddev); 523b3b83625SBjoern A. Zeeb if (bridge == NULL) 524b3b83625SBjoern A. Zeeb goto done; 525b3b83625SBjoern A. Zeeb bridge = device_get_parent(bridge); 526b3b83625SBjoern A. Zeeb if (bridge == NULL) 527b3b83625SBjoern A. Zeeb goto done; 528b3b83625SBjoern A. Zeeb if (device_get_devclass(device_get_parent(bridge)) != 529b3b83625SBjoern A. Zeeb devclass_find("pci")) 530b3b83625SBjoern A. Zeeb goto done; 531b3b83625SBjoern A. Zeeb 532b3b83625SBjoern A. Zeeb /* 533b3b83625SBjoern A. Zeeb * "bridge" is a PCI-to-PCI bridge. Create a Linux pci_dev 534b3b83625SBjoern A. Zeeb * for it so it can be returned. 535b3b83625SBjoern A. Zeeb */ 536b3b83625SBjoern A. Zeeb pdev->bus->self = lkpinew_pci_dev(bridge); 537b3b83625SBjoern A. Zeeb } 538b3b83625SBjoern A. Zeeb done: 539b3b83625SBjoern A. Zeeb return (pdev->bus->self); 540b3b83625SBjoern A. Zeeb } 541b3b83625SBjoern A. Zeeb 542d4a4960cSBjoern A. Zeeb static inline struct pci_devres * 543d4a4960cSBjoern A. Zeeb lkpi_pci_devres_find(struct pci_dev *pdev) 544d4a4960cSBjoern A. Zeeb { 545d4a4960cSBjoern A. Zeeb 546d4a4960cSBjoern A. Zeeb if (!pdev->managed) 547d4a4960cSBjoern A. Zeeb return (NULL); 548d4a4960cSBjoern A. Zeeb 549d4a4960cSBjoern A. Zeeb return (lkpi_pci_devres_get_alloc(pdev)); 550d4a4960cSBjoern A. Zeeb } 551d4a4960cSBjoern A. Zeeb 5528d59ecb2SHans Petter Selasky static inline void 5538d59ecb2SHans Petter Selasky pci_release_region(struct pci_dev *pdev, int bar) 5548d59ecb2SHans Petter Selasky { 5558d59ecb2SHans Petter Selasky struct resource_list_entry *rle; 556d4a4960cSBjoern A. Zeeb struct pci_devres *dr; 557d4a4960cSBjoern A. Zeeb struct pci_mmio_region *mmio, *p; 5588d59ecb2SHans Petter Selasky 55982098c8bSJessica Clarke if ((rle = linux_pci_get_bar(pdev, bar, false)) == NULL) 5608d59ecb2SHans Petter Selasky return; 561d4a4960cSBjoern A. Zeeb 562d4a4960cSBjoern A. Zeeb /* 563d4a4960cSBjoern A. Zeeb * As we implicitly track the requests we also need to clear them on 564d4a4960cSBjoern A. Zeeb * release. Do clear before resource release. 565d4a4960cSBjoern A. Zeeb */ 566d4a4960cSBjoern A. Zeeb dr = lkpi_pci_devres_find(pdev); 567d4a4960cSBjoern A. Zeeb if (dr != NULL) { 568d4a4960cSBjoern A. Zeeb KASSERT(dr->region_table[bar] == rle->res, ("%s: pdev %p bar %d" 569d4a4960cSBjoern A. Zeeb " region_table res %p != rel->res %p\n", __func__, pdev, 570d4a4960cSBjoern A. Zeeb bar, dr->region_table[bar], rle->res)); 571d4a4960cSBjoern A. Zeeb dr->region_table[bar] = NULL; 572d4a4960cSBjoern A. Zeeb dr->region_mask &= ~(1 << bar); 573d4a4960cSBjoern A. Zeeb } 574d4a4960cSBjoern A. Zeeb 575d4a4960cSBjoern A. Zeeb TAILQ_FOREACH_SAFE(mmio, &pdev->mmio, next, p) { 576d4a4960cSBjoern A. Zeeb if (rle->res != (void *)rman_get_bushandle(mmio->res)) 577d4a4960cSBjoern A. Zeeb continue; 578d4a4960cSBjoern A. Zeeb TAILQ_REMOVE(&pdev->mmio, mmio, next); 579d4a4960cSBjoern A. Zeeb free(mmio, M_DEVBUF); 580d4a4960cSBjoern A. Zeeb } 581d4a4960cSBjoern A. Zeeb 5828d59ecb2SHans Petter Selasky bus_release_resource(pdev->dev.bsddev, rle->type, rle->rid, rle->res); 5838d59ecb2SHans Petter Selasky } 5848d59ecb2SHans Petter Selasky 5858d59ecb2SHans Petter Selasky static inline void 5868d59ecb2SHans Petter Selasky pci_release_regions(struct pci_dev *pdev) 5878d59ecb2SHans Petter Selasky { 5888d59ecb2SHans Petter Selasky int i; 5898d59ecb2SHans Petter Selasky 5908d59ecb2SHans Petter Selasky for (i = 0; i <= PCIR_MAX_BAR_0; i++) 5918d59ecb2SHans Petter Selasky pci_release_region(pdev, i); 5928d59ecb2SHans Petter Selasky } 5938d59ecb2SHans Petter Selasky 5948d59ecb2SHans Petter Selasky static inline int 5958d59ecb2SHans Petter Selasky pci_request_regions(struct pci_dev *pdev, const char *res_name) 5968d59ecb2SHans Petter Selasky { 5978d59ecb2SHans Petter Selasky int error; 5988d59ecb2SHans Petter Selasky int i; 5998d59ecb2SHans Petter Selasky 6008d59ecb2SHans Petter Selasky for (i = 0; i <= PCIR_MAX_BAR_0; i++) { 6018d59ecb2SHans Petter Selasky error = pci_request_region(pdev, i, res_name); 6028d59ecb2SHans Petter Selasky if (error && error != -ENODEV) { 6038d59ecb2SHans Petter Selasky pci_release_regions(pdev); 6048d59ecb2SHans Petter Selasky return (error); 6058d59ecb2SHans Petter Selasky } 6068d59ecb2SHans Petter Selasky } 6078d59ecb2SHans Petter Selasky return (0); 6088d59ecb2SHans Petter Selasky } 6098d59ecb2SHans Petter Selasky 6108d59ecb2SHans Petter Selasky static inline void 611d4a4960cSBjoern A. Zeeb lkpi_pci_disable_msix(struct pci_dev *pdev) 6128d59ecb2SHans Petter Selasky { 6138d59ecb2SHans Petter Selasky 6148d59ecb2SHans Petter Selasky pci_release_msi(pdev->dev.bsddev); 615e1992aa1SHans Petter Selasky 616e1992aa1SHans Petter Selasky /* 617e1992aa1SHans Petter Selasky * The MSIX IRQ numbers associated with this PCI device are no 618e1992aa1SHans Petter Selasky * longer valid and might be re-assigned. Make sure 619e1992aa1SHans Petter Selasky * linux_pci_find_irq_dev() does no longer see them by 620e1992aa1SHans Petter Selasky * resetting their references to zero: 621e1992aa1SHans Petter Selasky */ 6224f109faaSHans Petter Selasky pdev->dev.irq_start = 0; 6234f109faaSHans Petter Selasky pdev->dev.irq_end = 0; 624d4a4960cSBjoern A. Zeeb pdev->msix_enabled = false; 6254f109faaSHans Petter Selasky } 626d4a4960cSBjoern A. Zeeb /* Only for consistency. No conflict on that one. */ 627d4a4960cSBjoern A. Zeeb #define pci_disable_msix(pdev) lkpi_pci_disable_msix(pdev) 6284f109faaSHans Petter Selasky 6294f109faaSHans Petter Selasky static inline void 630d4a4960cSBjoern A. Zeeb lkpi_pci_disable_msi(struct pci_dev *pdev) 6314f109faaSHans Petter Selasky { 6324f109faaSHans Petter Selasky 6334f109faaSHans Petter Selasky pci_release_msi(pdev->dev.bsddev); 6344f109faaSHans Petter Selasky 6354f109faaSHans Petter Selasky pdev->dev.irq_start = 0; 6364f109faaSHans Petter Selasky pdev->dev.irq_end = 0; 6374f109faaSHans Petter Selasky pdev->irq = pdev->dev.irq; 6384f109faaSHans Petter Selasky pdev->msi_enabled = false; 6398d59ecb2SHans Petter Selasky } 640d4a4960cSBjoern A. Zeeb #define pci_disable_msi(pdev) lkpi_pci_disable_msi(pdev) 641539228d3SBjoern A. Zeeb #define pci_free_irq_vectors(pdev) lkpi_pci_disable_msi(pdev) 642105a37caSEmmanuel Vadot 643937a05baSJustin Hibbits unsigned long pci_resource_start(struct pci_dev *pdev, int bar); 644937a05baSJustin Hibbits unsigned long pci_resource_len(struct pci_dev *pdev, int bar); 645937a05baSJustin Hibbits 64612af734dSHans Petter Selasky static inline bus_addr_t 64712af734dSHans Petter Selasky pci_bus_address(struct pci_dev *pdev, int bar) 64812af734dSHans Petter Selasky { 64912af734dSHans Petter Selasky 65012af734dSHans Petter Selasky return (pci_resource_start(pdev, bar)); 65112af734dSHans Petter Selasky } 65212af734dSHans Petter Selasky 6538d59ecb2SHans Petter Selasky #define PCI_CAP_ID_EXP PCIY_EXPRESS 6548d59ecb2SHans Petter Selasky #define PCI_CAP_ID_PCIX PCIY_PCIX 65512af734dSHans Petter Selasky #define PCI_CAP_ID_AGP PCIY_AGP 65612af734dSHans Petter Selasky #define PCI_CAP_ID_PM PCIY_PMG 6578d59ecb2SHans Petter Selasky 65812af734dSHans Petter Selasky #define PCI_EXP_DEVCTL PCIER_DEVICE_CTL 65912af734dSHans Petter Selasky #define PCI_EXP_DEVCTL_PAYLOAD PCIEM_CTL_MAX_PAYLOAD 66012af734dSHans Petter Selasky #define PCI_EXP_DEVCTL_READRQ PCIEM_CTL_MAX_READ_REQUEST 66112af734dSHans Petter Selasky #define PCI_EXP_LNKCTL PCIER_LINK_CTL 66212af734dSHans Petter Selasky #define PCI_EXP_LNKSTA PCIER_LINK_STA 6638d59ecb2SHans Petter Selasky 6648d59ecb2SHans Petter Selasky static inline int 6658d59ecb2SHans Petter Selasky pci_find_capability(struct pci_dev *pdev, int capid) 6668d59ecb2SHans Petter Selasky { 6678d59ecb2SHans Petter Selasky int reg; 6688d59ecb2SHans Petter Selasky 6698d59ecb2SHans Petter Selasky if (pci_find_cap(pdev->dev.bsddev, capid, ®)) 6708d59ecb2SHans Petter Selasky return (0); 6718d59ecb2SHans Petter Selasky return (reg); 6728d59ecb2SHans Petter Selasky } 6738d59ecb2SHans Petter Selasky 6748d59ecb2SHans Petter Selasky static inline int pci_pcie_cap(struct pci_dev *dev) 6758d59ecb2SHans Petter Selasky { 6768d59ecb2SHans Petter Selasky return pci_find_capability(dev, PCI_CAP_ID_EXP); 6778d59ecb2SHans Petter Selasky } 6788d59ecb2SHans Petter Selasky 6798d59ecb2SHans Petter Selasky static inline int 6808e106c52SBjoern A. Zeeb pci_find_ext_capability(struct pci_dev *pdev, int capid) 6818e106c52SBjoern A. Zeeb { 6828e106c52SBjoern A. Zeeb int reg; 6838e106c52SBjoern A. Zeeb 6848e106c52SBjoern A. Zeeb if (pci_find_extcap(pdev->dev.bsddev, capid, ®)) 6858e106c52SBjoern A. Zeeb return (0); 6868e106c52SBjoern A. Zeeb return (reg); 6878e106c52SBjoern A. Zeeb } 6888e106c52SBjoern A. Zeeb 6898e106c52SBjoern A. Zeeb #define PCIM_PCAP_PME_SHIFT 11 6908e106c52SBjoern A. Zeeb static __inline bool 6918e106c52SBjoern A. Zeeb pci_pme_capable(struct pci_dev *pdev, uint32_t flag) 6928e106c52SBjoern A. Zeeb { 6938e106c52SBjoern A. Zeeb struct pci_devinfo *dinfo; 6948e106c52SBjoern A. Zeeb pcicfgregs *cfg; 6958e106c52SBjoern A. Zeeb 6968e106c52SBjoern A. Zeeb if (flag > (PCIM_PCAP_D3PME_COLD >> PCIM_PCAP_PME_SHIFT)) 6978e106c52SBjoern A. Zeeb return (false); 6988e106c52SBjoern A. Zeeb 6998e106c52SBjoern A. Zeeb dinfo = device_get_ivars(pdev->dev.bsddev); 7008e106c52SBjoern A. Zeeb cfg = &dinfo->cfg; 7018e106c52SBjoern A. Zeeb 7028e106c52SBjoern A. Zeeb if (cfg->pp.pp_cap == 0) 7038e106c52SBjoern A. Zeeb return (false); 7048e106c52SBjoern A. Zeeb 7058e106c52SBjoern A. Zeeb if ((cfg->pp.pp_cap & (1 << (PCIM_PCAP_PME_SHIFT + flag))) != 0) 7068e106c52SBjoern A. Zeeb return (true); 7078e106c52SBjoern A. Zeeb 7088e106c52SBjoern A. Zeeb return (false); 7098e106c52SBjoern A. Zeeb } 7108e106c52SBjoern A. Zeeb 7118e106c52SBjoern A. Zeeb static inline int 7128e106c52SBjoern A. Zeeb pci_disable_link_state(struct pci_dev *pdev, uint32_t flags) 7138e106c52SBjoern A. Zeeb { 7148e106c52SBjoern A. Zeeb 7158e106c52SBjoern A. Zeeb if (!pci_enable_aspm) 7168e106c52SBjoern A. Zeeb return (-EPERM); 7178e106c52SBjoern A. Zeeb 7188e106c52SBjoern A. Zeeb return (-ENXIO); 7198e106c52SBjoern A. Zeeb } 7208e106c52SBjoern A. Zeeb 7218e106c52SBjoern A. Zeeb static inline int 722ed5600f5SBjoern A. Zeeb pci_read_config_byte(const struct pci_dev *pdev, int where, u8 *val) 7238d59ecb2SHans Petter Selasky { 7248d59ecb2SHans Petter Selasky 7258d59ecb2SHans Petter Selasky *val = (u8)pci_read_config(pdev->dev.bsddev, where, 1); 7268d59ecb2SHans Petter Selasky return (0); 7278d59ecb2SHans Petter Selasky } 7288d59ecb2SHans Petter Selasky 7298d59ecb2SHans Petter Selasky static inline int 730ed5600f5SBjoern A. Zeeb pci_read_config_word(const struct pci_dev *pdev, int where, u16 *val) 7318d59ecb2SHans Petter Selasky { 7328d59ecb2SHans Petter Selasky 7338d59ecb2SHans Petter Selasky *val = (u16)pci_read_config(pdev->dev.bsddev, where, 2); 7348d59ecb2SHans Petter Selasky return (0); 7358d59ecb2SHans Petter Selasky } 7368d59ecb2SHans Petter Selasky 7378d59ecb2SHans Petter Selasky static inline int 738ed5600f5SBjoern A. Zeeb pci_read_config_dword(const struct pci_dev *pdev, int where, u32 *val) 7398d59ecb2SHans Petter Selasky { 7408d59ecb2SHans Petter Selasky 7418d59ecb2SHans Petter Selasky *val = (u32)pci_read_config(pdev->dev.bsddev, where, 4); 7428d59ecb2SHans Petter Selasky return (0); 7438d59ecb2SHans Petter Selasky } 7448d59ecb2SHans Petter Selasky 7458d59ecb2SHans Petter Selasky static inline int 746ed5600f5SBjoern A. Zeeb pci_write_config_byte(const struct pci_dev *pdev, int where, u8 val) 7478d59ecb2SHans Petter Selasky { 7488d59ecb2SHans Petter Selasky 7498d59ecb2SHans Petter Selasky pci_write_config(pdev->dev.bsddev, where, val, 1); 7508d59ecb2SHans Petter Selasky return (0); 7518d59ecb2SHans Petter Selasky } 7528d59ecb2SHans Petter Selasky 7538d59ecb2SHans Petter Selasky static inline int 754ed5600f5SBjoern A. Zeeb pci_write_config_word(const struct pci_dev *pdev, int where, u16 val) 7558d59ecb2SHans Petter Selasky { 7568d59ecb2SHans Petter Selasky 7578d59ecb2SHans Petter Selasky pci_write_config(pdev->dev.bsddev, where, val, 2); 7588d59ecb2SHans Petter Selasky return (0); 7598d59ecb2SHans Petter Selasky } 7608d59ecb2SHans Petter Selasky 7618d59ecb2SHans Petter Selasky static inline int 762ed5600f5SBjoern A. Zeeb pci_write_config_dword(const struct pci_dev *pdev, int where, u32 val) 7638d59ecb2SHans Petter Selasky { 7648d59ecb2SHans Petter Selasky 7658d59ecb2SHans Petter Selasky pci_write_config(pdev->dev.bsddev, where, val, 4); 7668d59ecb2SHans Petter Selasky return (0); 7678d59ecb2SHans Petter Selasky } 7688d59ecb2SHans Petter Selasky 7690b7bd01aSMark Johnston int linux_pci_register_driver(struct pci_driver *pdrv); 7700b7bd01aSMark Johnston int linux_pci_register_drm_driver(struct pci_driver *pdrv); 7710b7bd01aSMark Johnston void linux_pci_unregister_driver(struct pci_driver *pdrv); 7725098ed5fSJohannes Lundberg void linux_pci_unregister_drm_driver(struct pci_driver *pdrv); 7730b7bd01aSMark Johnston 7740b7bd01aSMark Johnston #define pci_register_driver(pdrv) linux_pci_register_driver(pdrv) 7750b7bd01aSMark Johnston #define pci_unregister_driver(pdrv) linux_pci_unregister_driver(pdrv) 7768d59ecb2SHans Petter Selasky 7778d59ecb2SHans Petter Selasky struct msix_entry { 7788d59ecb2SHans Petter Selasky int entry; 7798d59ecb2SHans Petter Selasky int vector; 7808d59ecb2SHans Petter Selasky }; 7818d59ecb2SHans Petter Selasky 7828d59ecb2SHans Petter Selasky /* 7838d59ecb2SHans Petter Selasky * Enable msix, positive errors indicate actual number of available 7848d59ecb2SHans Petter Selasky * vectors. Negative errors are failures. 7858d59ecb2SHans Petter Selasky * 7868d59ecb2SHans Petter Selasky * NB: define added to prevent this definition of pci_enable_msix from 7878d59ecb2SHans Petter Selasky * clashing with the native FreeBSD version. 7888d59ecb2SHans Petter Selasky */ 789fa0d4f31SHans Petter Selasky #define pci_enable_msix(...) \ 790fa0d4f31SHans Petter Selasky linux_pci_enable_msix(__VA_ARGS__) 791fa0d4f31SHans Petter Selasky 7928d59ecb2SHans Petter Selasky static inline int 7938d59ecb2SHans Petter Selasky pci_enable_msix(struct pci_dev *pdev, struct msix_entry *entries, int nreq) 7948d59ecb2SHans Petter Selasky { 7958d59ecb2SHans Petter Selasky struct resource_list_entry *rle; 7968d59ecb2SHans Petter Selasky int error; 7978d59ecb2SHans Petter Selasky int avail; 7988d59ecb2SHans Petter Selasky int i; 7998d59ecb2SHans Petter Selasky 8008d59ecb2SHans Petter Selasky avail = pci_msix_count(pdev->dev.bsddev); 8018d59ecb2SHans Petter Selasky if (avail < nreq) { 8028d59ecb2SHans Petter Selasky if (avail == 0) 8038d59ecb2SHans Petter Selasky return -EINVAL; 8048d59ecb2SHans Petter Selasky return avail; 8058d59ecb2SHans Petter Selasky } 8068d59ecb2SHans Petter Selasky avail = nreq; 8078d59ecb2SHans Petter Selasky if ((error = -pci_alloc_msix(pdev->dev.bsddev, &avail)) != 0) 8088d59ecb2SHans Petter Selasky return error; 8098d59ecb2SHans Petter Selasky /* 8108d59ecb2SHans Petter Selasky * Handle case where "pci_alloc_msix()" may allocate less 8118d59ecb2SHans Petter Selasky * interrupts than available and return with no error: 8128d59ecb2SHans Petter Selasky */ 8138d59ecb2SHans Petter Selasky if (avail < nreq) { 8148d59ecb2SHans Petter Selasky pci_release_msi(pdev->dev.bsddev); 8158d59ecb2SHans Petter Selasky return avail; 8168d59ecb2SHans Petter Selasky } 81782098c8bSJessica Clarke rle = linux_pci_get_rle(pdev, SYS_RES_IRQ, 1, false); 8184f109faaSHans Petter Selasky pdev->dev.irq_start = rle->start; 8194f109faaSHans Petter Selasky pdev->dev.irq_end = rle->start + avail; 8208d59ecb2SHans Petter Selasky for (i = 0; i < nreq; i++) 8214f109faaSHans Petter Selasky entries[i].vector = pdev->dev.irq_start + i; 822d4a4960cSBjoern A. Zeeb pdev->msix_enabled = true; 8238d59ecb2SHans Petter Selasky return (0); 8248d59ecb2SHans Petter Selasky } 8258d59ecb2SHans Petter Selasky 826fa0d4f31SHans Petter Selasky #define pci_enable_msix_range(...) \ 827fa0d4f31SHans Petter Selasky linux_pci_enable_msix_range(__VA_ARGS__) 828fa0d4f31SHans Petter Selasky 8298d59ecb2SHans Petter Selasky static inline int 8308d59ecb2SHans Petter Selasky pci_enable_msix_range(struct pci_dev *dev, struct msix_entry *entries, 8318d59ecb2SHans Petter Selasky int minvec, int maxvec) 8328d59ecb2SHans Petter Selasky { 8338d59ecb2SHans Petter Selasky int nvec = maxvec; 8348d59ecb2SHans Petter Selasky int rc; 8358d59ecb2SHans Petter Selasky 8368d59ecb2SHans Petter Selasky if (maxvec < minvec) 8378d59ecb2SHans Petter Selasky return (-ERANGE); 8388d59ecb2SHans Petter Selasky 8398d59ecb2SHans Petter Selasky do { 8408d59ecb2SHans Petter Selasky rc = pci_enable_msix(dev, entries, nvec); 8418d59ecb2SHans Petter Selasky if (rc < 0) { 8428d59ecb2SHans Petter Selasky return (rc); 8438d59ecb2SHans Petter Selasky } else if (rc > 0) { 8448d59ecb2SHans Petter Selasky if (rc < minvec) 8458d59ecb2SHans Petter Selasky return (-ENOSPC); 8468d59ecb2SHans Petter Selasky nvec = rc; 8478d59ecb2SHans Petter Selasky } 8488d59ecb2SHans Petter Selasky } while (rc); 8498d59ecb2SHans Petter Selasky return (nvec); 8508d59ecb2SHans Petter Selasky } 8518d59ecb2SHans Petter Selasky 8524f109faaSHans Petter Selasky #define pci_enable_msi(pdev) \ 8534f109faaSHans Petter Selasky linux_pci_enable_msi(pdev) 8544f109faaSHans Petter Selasky 8554f109faaSHans Petter Selasky static inline int 8564f109faaSHans Petter Selasky pci_enable_msi(struct pci_dev *pdev) 8574f109faaSHans Petter Selasky { 8584f109faaSHans Petter Selasky struct resource_list_entry *rle; 8594f109faaSHans Petter Selasky int error; 8604f109faaSHans Petter Selasky int avail; 8614f109faaSHans Petter Selasky 8624f109faaSHans Petter Selasky avail = pci_msi_count(pdev->dev.bsddev); 8634f109faaSHans Petter Selasky if (avail < 1) 8644f109faaSHans Petter Selasky return -EINVAL; 8654f109faaSHans Petter Selasky 8664f109faaSHans Petter Selasky avail = 1; /* this function only enable one MSI IRQ */ 8674f109faaSHans Petter Selasky if ((error = -pci_alloc_msi(pdev->dev.bsddev, &avail)) != 0) 8684f109faaSHans Petter Selasky return error; 8694f109faaSHans Petter Selasky 87082098c8bSJessica Clarke rle = linux_pci_get_rle(pdev, SYS_RES_IRQ, 1, false); 8714f109faaSHans Petter Selasky pdev->dev.irq_start = rle->start; 8724f109faaSHans Petter Selasky pdev->dev.irq_end = rle->start + avail; 8734f109faaSHans Petter Selasky pdev->irq = rle->start; 8744f109faaSHans Petter Selasky pdev->msi_enabled = true; 8754f109faaSHans Petter Selasky return (0); 8764f109faaSHans Petter Selasky } 8774f109faaSHans Petter Selasky 878452d59e1SSlava Shwartsman static inline int 879452d59e1SSlava Shwartsman pci_channel_offline(struct pci_dev *pdev) 8808d59ecb2SHans Petter Selasky { 881452d59e1SSlava Shwartsman 882c5161386SHans Petter Selasky return (pci_read_config(pdev->dev.bsddev, PCIR_VENDOR, 2) == PCIV_INVALID); 8838d59ecb2SHans Petter Selasky } 8848d59ecb2SHans Petter Selasky 8858d59ecb2SHans Petter Selasky static inline int pci_enable_sriov(struct pci_dev *dev, int nr_virtfn) 8868d59ecb2SHans Petter Selasky { 8878d59ecb2SHans Petter Selasky return -ENODEV; 8888d59ecb2SHans Petter Selasky } 8891cdb2534SWarner Losh 8908d59ecb2SHans Petter Selasky static inline void pci_disable_sriov(struct pci_dev *dev) 8918d59ecb2SHans Petter Selasky { 8928d59ecb2SHans Petter Selasky } 8938d59ecb2SHans Petter Selasky 894d4a4960cSBjoern A. Zeeb static inline void * 895d4a4960cSBjoern A. Zeeb pci_iomap(struct pci_dev *pdev, int mmio_bar, int mmio_size) 896d4a4960cSBjoern A. Zeeb { 897d4a4960cSBjoern A. Zeeb struct resource *res; 898d4a4960cSBjoern A. Zeeb 899d4a4960cSBjoern A. Zeeb res = _lkpi_pci_iomap(pdev, mmio_bar, mmio_size); 900d4a4960cSBjoern A. Zeeb if (res == NULL) 901d4a4960cSBjoern A. Zeeb return (NULL); 902d4a4960cSBjoern A. Zeeb /* This is a FreeBSD extension so we can use bus_*(). */ 903d4a4960cSBjoern A. Zeeb if (pdev->want_iomap_res) 904d4a4960cSBjoern A. Zeeb return (res); 905d4a4960cSBjoern A. Zeeb return ((void *)rman_get_bushandle(res)); 9064c274849SEmmanuel Vadot } 9074c274849SEmmanuel Vadot 9084c274849SEmmanuel Vadot static inline void 909d4a4960cSBjoern A. Zeeb pci_iounmap(struct pci_dev *pdev, void *res) 9104c274849SEmmanuel Vadot { 9114c274849SEmmanuel Vadot struct pci_mmio_region *mmio, *p; 9124c274849SEmmanuel Vadot 913d4a4960cSBjoern A. Zeeb TAILQ_FOREACH_SAFE(mmio, &pdev->mmio, next, p) { 9144c274849SEmmanuel Vadot if (res != (void *)rman_get_bushandle(mmio->res)) 9154c274849SEmmanuel Vadot continue; 916d4a4960cSBjoern A. Zeeb bus_release_resource(pdev->dev.bsddev, 9174c274849SEmmanuel Vadot mmio->type, mmio->rid, mmio->res); 918d4a4960cSBjoern A. Zeeb TAILQ_REMOVE(&pdev->mmio, mmio, next); 9194c274849SEmmanuel Vadot free(mmio, M_DEVBUF); 9204c274849SEmmanuel Vadot return; 9214c274849SEmmanuel Vadot } 9224c274849SEmmanuel Vadot } 9234c274849SEmmanuel Vadot 924105a37caSEmmanuel Vadot static inline void 925105a37caSEmmanuel Vadot lkpi_pci_save_state(struct pci_dev *pdev) 926105a37caSEmmanuel Vadot { 927105a37caSEmmanuel Vadot 928105a37caSEmmanuel Vadot pci_save_state(pdev->dev.bsddev); 929105a37caSEmmanuel Vadot } 930105a37caSEmmanuel Vadot 931105a37caSEmmanuel Vadot static inline void 932105a37caSEmmanuel Vadot lkpi_pci_restore_state(struct pci_dev *pdev) 933105a37caSEmmanuel Vadot { 934105a37caSEmmanuel Vadot 935105a37caSEmmanuel Vadot pci_restore_state(pdev->dev.bsddev); 936105a37caSEmmanuel Vadot } 937105a37caSEmmanuel Vadot 938105a37caSEmmanuel Vadot #define pci_save_state(dev) lkpi_pci_save_state(dev) 939105a37caSEmmanuel Vadot #define pci_restore_state(dev) lkpi_pci_restore_state(dev) 940105a37caSEmmanuel Vadot 94186a1c5d1SJean-Sébastien Pédron static inline int 94286a1c5d1SJean-Sébastien Pédron pci_reset_function(struct pci_dev *pdev) 94386a1c5d1SJean-Sébastien Pédron { 94486a1c5d1SJean-Sébastien Pédron 94586a1c5d1SJean-Sébastien Pédron return (-ENOSYS); 94686a1c5d1SJean-Sébastien Pédron } 94786a1c5d1SJean-Sébastien Pédron 9488d59ecb2SHans Petter Selasky #define DEFINE_PCI_DEVICE_TABLE(_table) \ 9498d59ecb2SHans Petter Selasky const struct pci_device_id _table[] __devinitdata 9508d59ecb2SHans Petter Selasky 9518d59ecb2SHans Petter Selasky /* XXX This should not be necessary. */ 9528d59ecb2SHans Petter Selasky #define pcix_set_mmrbc(d, v) 0 9538d59ecb2SHans Petter Selasky #define pcix_get_max_mmrbc(d) 0 9543f322b22SMark Johnston #define pcie_set_readrq(d, v) pci_set_max_read_req((d)->dev.bsddev, (v)) 9558d59ecb2SHans Petter Selasky 9568d59ecb2SHans Petter Selasky #define PCI_DMA_BIDIRECTIONAL 0 9578d59ecb2SHans Petter Selasky #define PCI_DMA_TODEVICE 1 9588d59ecb2SHans Petter Selasky #define PCI_DMA_FROMDEVICE 2 9598d59ecb2SHans Petter Selasky #define PCI_DMA_NONE 3 9608d59ecb2SHans Petter Selasky 9618d59ecb2SHans Petter Selasky #define pci_pool dma_pool 9621724ded4SHans Petter Selasky #define pci_pool_destroy(...) dma_pool_destroy(__VA_ARGS__) 9631724ded4SHans Petter Selasky #define pci_pool_alloc(...) dma_pool_alloc(__VA_ARGS__) 9641724ded4SHans Petter Selasky #define pci_pool_free(...) dma_pool_free(__VA_ARGS__) 9658d59ecb2SHans Petter Selasky #define pci_pool_create(_name, _pdev, _size, _align, _alloc) \ 9668d59ecb2SHans Petter Selasky dma_pool_create(_name, &(_pdev)->dev, _size, _align, _alloc) 9678d59ecb2SHans Petter Selasky #define pci_free_consistent(_hwdev, _size, _vaddr, _dma_handle) \ 9688d59ecb2SHans Petter Selasky dma_free_coherent((_hwdev) == NULL ? NULL : &(_hwdev)->dev, \ 9698d59ecb2SHans Petter Selasky _size, _vaddr, _dma_handle) 9708d59ecb2SHans Petter Selasky #define pci_map_sg(_hwdev, _sg, _nents, _dir) \ 9718d59ecb2SHans Petter Selasky dma_map_sg((_hwdev) == NULL ? NULL : &(_hwdev->dev), \ 9728d59ecb2SHans Petter Selasky _sg, _nents, (enum dma_data_direction)_dir) 9738d59ecb2SHans Petter Selasky #define pci_map_single(_hwdev, _ptr, _size, _dir) \ 9748d59ecb2SHans Petter Selasky dma_map_single((_hwdev) == NULL ? NULL : &(_hwdev->dev), \ 9758d59ecb2SHans Petter Selasky (_ptr), (_size), (enum dma_data_direction)_dir) 9768d59ecb2SHans Petter Selasky #define pci_unmap_single(_hwdev, _addr, _size, _dir) \ 9778d59ecb2SHans Petter Selasky dma_unmap_single((_hwdev) == NULL ? NULL : &(_hwdev)->dev, \ 9788d59ecb2SHans Petter Selasky _addr, _size, (enum dma_data_direction)_dir) 9798d59ecb2SHans Petter Selasky #define pci_unmap_sg(_hwdev, _sg, _nents, _dir) \ 9808d59ecb2SHans Petter Selasky dma_unmap_sg((_hwdev) == NULL ? NULL : &(_hwdev)->dev, \ 9818d59ecb2SHans Petter Selasky _sg, _nents, (enum dma_data_direction)_dir) 9828d59ecb2SHans Petter Selasky #define pci_map_page(_hwdev, _page, _offset, _size, _dir) \ 9838d59ecb2SHans Petter Selasky dma_map_page((_hwdev) == NULL ? NULL : &(_hwdev)->dev, _page,\ 9848d59ecb2SHans Petter Selasky _offset, _size, (enum dma_data_direction)_dir) 9858d59ecb2SHans Petter Selasky #define pci_unmap_page(_hwdev, _dma_address, _size, _dir) \ 9868d59ecb2SHans Petter Selasky dma_unmap_page((_hwdev) == NULL ? NULL : &(_hwdev)->dev, \ 9878d59ecb2SHans Petter Selasky _dma_address, _size, (enum dma_data_direction)_dir) 9888d59ecb2SHans Petter Selasky #define pci_set_dma_mask(_pdev, mask) dma_set_mask(&(_pdev)->dev, (mask)) 9898d59ecb2SHans Petter Selasky #define pci_dma_mapping_error(_pdev, _dma_addr) \ 9908d59ecb2SHans Petter Selasky dma_mapping_error(&(_pdev)->dev, _dma_addr) 9918d59ecb2SHans Petter Selasky #define pci_set_consistent_dma_mask(_pdev, _mask) \ 9928d59ecb2SHans Petter Selasky dma_set_coherent_mask(&(_pdev)->dev, (_mask)) 9938d59ecb2SHans Petter Selasky #define DECLARE_PCI_UNMAP_ADDR(x) DEFINE_DMA_UNMAP_ADDR(x); 9948d59ecb2SHans Petter Selasky #define DECLARE_PCI_UNMAP_LEN(x) DEFINE_DMA_UNMAP_LEN(x); 9958d59ecb2SHans Petter Selasky #define pci_unmap_addr dma_unmap_addr 9968d59ecb2SHans Petter Selasky #define pci_unmap_addr_set dma_unmap_addr_set 9978d59ecb2SHans Petter Selasky #define pci_unmap_len dma_unmap_len 9988d59ecb2SHans Petter Selasky #define pci_unmap_len_set dma_unmap_len_set 9998d59ecb2SHans Petter Selasky 10008d59ecb2SHans Petter Selasky typedef unsigned int __bitwise pci_channel_state_t; 10018d59ecb2SHans Petter Selasky typedef unsigned int __bitwise pci_ers_result_t; 10028d59ecb2SHans Petter Selasky 10038d59ecb2SHans Petter Selasky enum pci_channel_state { 1004a65ef215SHans Petter Selasky pci_channel_io_normal = 1, 1005a65ef215SHans Petter Selasky pci_channel_io_frozen = 2, 1006a65ef215SHans Petter Selasky pci_channel_io_perm_failure = 3, 10078d59ecb2SHans Petter Selasky }; 10088d59ecb2SHans Petter Selasky 10098d59ecb2SHans Petter Selasky enum pci_ers_result { 1010a65ef215SHans Petter Selasky PCI_ERS_RESULT_NONE = 1, 1011a65ef215SHans Petter Selasky PCI_ERS_RESULT_CAN_RECOVER = 2, 1012a65ef215SHans Petter Selasky PCI_ERS_RESULT_NEED_RESET = 3, 1013a65ef215SHans Petter Selasky PCI_ERS_RESULT_DISCONNECT = 4, 1014a65ef215SHans Petter Selasky PCI_ERS_RESULT_RECOVERED = 5, 10158d59ecb2SHans Petter Selasky }; 10168d59ecb2SHans Petter Selasky 10178d59ecb2SHans Petter Selasky /* PCI bus error event callbacks */ 10188d59ecb2SHans Petter Selasky struct pci_error_handlers { 10198d59ecb2SHans Petter Selasky pci_ers_result_t (*error_detected)(struct pci_dev *dev, 10208d59ecb2SHans Petter Selasky enum pci_channel_state error); 10218d59ecb2SHans Petter Selasky pci_ers_result_t (*mmio_enabled)(struct pci_dev *dev); 10228d59ecb2SHans Petter Selasky pci_ers_result_t (*link_reset)(struct pci_dev *dev); 10238d59ecb2SHans Petter Selasky pci_ers_result_t (*slot_reset)(struct pci_dev *dev); 10248d59ecb2SHans Petter Selasky void (*resume)(struct pci_dev *dev); 10258d59ecb2SHans Petter Selasky }; 10268d59ecb2SHans Petter Selasky 1027a65ef215SHans Petter Selasky /* FreeBSD does not support SRIOV - yet */ 10288d59ecb2SHans Petter Selasky static inline struct pci_dev *pci_physfn(struct pci_dev *dev) 10298d59ecb2SHans Petter Selasky { 10308d59ecb2SHans Petter Selasky return dev; 10318d59ecb2SHans Petter Selasky } 10328d59ecb2SHans Petter Selasky 10338d59ecb2SHans Petter Selasky static inline bool pci_is_pcie(struct pci_dev *dev) 10348d59ecb2SHans Petter Selasky { 10358d59ecb2SHans Petter Selasky return !!pci_pcie_cap(dev); 10368d59ecb2SHans Petter Selasky } 10378d59ecb2SHans Petter Selasky 10388d59ecb2SHans Petter Selasky static inline u16 pcie_flags_reg(struct pci_dev *dev) 10398d59ecb2SHans Petter Selasky { 10408d59ecb2SHans Petter Selasky int pos; 10418d59ecb2SHans Petter Selasky u16 reg16; 10428d59ecb2SHans Petter Selasky 10438d59ecb2SHans Petter Selasky pos = pci_find_capability(dev, PCI_CAP_ID_EXP); 10448d59ecb2SHans Petter Selasky if (!pos) 10458d59ecb2SHans Petter Selasky return 0; 10468d59ecb2SHans Petter Selasky 10478d59ecb2SHans Petter Selasky pci_read_config_word(dev, pos + PCI_EXP_FLAGS, ®16); 10488d59ecb2SHans Petter Selasky 10498d59ecb2SHans Petter Selasky return reg16; 10508d59ecb2SHans Petter Selasky } 10518d59ecb2SHans Petter Selasky 10528d59ecb2SHans Petter Selasky static inline int pci_pcie_type(struct pci_dev *dev) 10538d59ecb2SHans Petter Selasky { 10548d59ecb2SHans Petter Selasky return (pcie_flags_reg(dev) & PCI_EXP_FLAGS_TYPE) >> 4; 10558d59ecb2SHans Petter Selasky } 10568d59ecb2SHans Petter Selasky 10578d59ecb2SHans Petter Selasky static inline int pcie_cap_version(struct pci_dev *dev) 10588d59ecb2SHans Petter Selasky { 10598d59ecb2SHans Petter Selasky return pcie_flags_reg(dev) & PCI_EXP_FLAGS_VERS; 10608d59ecb2SHans Petter Selasky } 10618d59ecb2SHans Petter Selasky 10628d59ecb2SHans Petter Selasky static inline bool pcie_cap_has_lnkctl(struct pci_dev *dev) 10638d59ecb2SHans Petter Selasky { 10648d59ecb2SHans Petter Selasky int type = pci_pcie_type(dev); 10658d59ecb2SHans Petter Selasky 10668d59ecb2SHans Petter Selasky return pcie_cap_version(dev) > 1 || 10678d59ecb2SHans Petter Selasky type == PCI_EXP_TYPE_ROOT_PORT || 10688d59ecb2SHans Petter Selasky type == PCI_EXP_TYPE_ENDPOINT || 10698d59ecb2SHans Petter Selasky type == PCI_EXP_TYPE_LEG_END; 10708d59ecb2SHans Petter Selasky } 10718d59ecb2SHans Petter Selasky 10728d59ecb2SHans Petter Selasky static inline bool pcie_cap_has_devctl(const struct pci_dev *dev) 10738d59ecb2SHans Petter Selasky { 10748d59ecb2SHans Petter Selasky return true; 10758d59ecb2SHans Petter Selasky } 10768d59ecb2SHans Petter Selasky 10778d59ecb2SHans Petter Selasky static inline bool pcie_cap_has_sltctl(struct pci_dev *dev) 10788d59ecb2SHans Petter Selasky { 10798d59ecb2SHans Petter Selasky int type = pci_pcie_type(dev); 10808d59ecb2SHans Petter Selasky 108183630517SEd Maste return pcie_cap_version(dev) > 1 || type == PCI_EXP_TYPE_ROOT_PORT || 10828d59ecb2SHans Petter Selasky (type == PCI_EXP_TYPE_DOWNSTREAM && 10838d59ecb2SHans Petter Selasky pcie_flags_reg(dev) & PCI_EXP_FLAGS_SLOT); 10848d59ecb2SHans Petter Selasky } 10858d59ecb2SHans Petter Selasky 10868d59ecb2SHans Petter Selasky static inline bool pcie_cap_has_rtctl(struct pci_dev *dev) 10878d59ecb2SHans Petter Selasky { 10888d59ecb2SHans Petter Selasky int type = pci_pcie_type(dev); 10898d59ecb2SHans Petter Selasky 109083630517SEd Maste return pcie_cap_version(dev) > 1 || type == PCI_EXP_TYPE_ROOT_PORT || 10918d59ecb2SHans Petter Selasky type == PCI_EXP_TYPE_RC_EC; 10928d59ecb2SHans Petter Selasky } 10938d59ecb2SHans Petter Selasky 10948d59ecb2SHans Petter Selasky static bool pcie_capability_reg_implemented(struct pci_dev *dev, int pos) 10958d59ecb2SHans Petter Selasky { 10968d59ecb2SHans Petter Selasky if (!pci_is_pcie(dev)) 10978d59ecb2SHans Petter Selasky return false; 10988d59ecb2SHans Petter Selasky 10998d59ecb2SHans Petter Selasky switch (pos) { 11008d59ecb2SHans Petter Selasky case PCI_EXP_FLAGS_TYPE: 11018d59ecb2SHans Petter Selasky return true; 11028d59ecb2SHans Petter Selasky case PCI_EXP_DEVCAP: 11038d59ecb2SHans Petter Selasky case PCI_EXP_DEVCTL: 11048d59ecb2SHans Petter Selasky case PCI_EXP_DEVSTA: 11058d59ecb2SHans Petter Selasky return pcie_cap_has_devctl(dev); 11068d59ecb2SHans Petter Selasky case PCI_EXP_LNKCAP: 11078d59ecb2SHans Petter Selasky case PCI_EXP_LNKCTL: 11088d59ecb2SHans Petter Selasky case PCI_EXP_LNKSTA: 11098d59ecb2SHans Petter Selasky return pcie_cap_has_lnkctl(dev); 11108d59ecb2SHans Petter Selasky case PCI_EXP_SLTCAP: 11118d59ecb2SHans Petter Selasky case PCI_EXP_SLTCTL: 11128d59ecb2SHans Petter Selasky case PCI_EXP_SLTSTA: 11138d59ecb2SHans Petter Selasky return pcie_cap_has_sltctl(dev); 11148d59ecb2SHans Petter Selasky case PCI_EXP_RTCTL: 11158d59ecb2SHans Petter Selasky case PCI_EXP_RTCAP: 11168d59ecb2SHans Petter Selasky case PCI_EXP_RTSTA: 11178d59ecb2SHans Petter Selasky return pcie_cap_has_rtctl(dev); 11188d59ecb2SHans Petter Selasky case PCI_EXP_DEVCAP2: 11198d59ecb2SHans Petter Selasky case PCI_EXP_DEVCTL2: 11208d59ecb2SHans Petter Selasky case PCI_EXP_LNKCAP2: 11218d59ecb2SHans Petter Selasky case PCI_EXP_LNKCTL2: 11228d59ecb2SHans Petter Selasky case PCI_EXP_LNKSTA2: 11238d59ecb2SHans Petter Selasky return pcie_cap_version(dev) > 1; 11248d59ecb2SHans Petter Selasky default: 11258d59ecb2SHans Petter Selasky return false; 11268d59ecb2SHans Petter Selasky } 11278d59ecb2SHans Petter Selasky } 11288d59ecb2SHans Petter Selasky 112912af734dSHans Petter Selasky static inline int 113012af734dSHans Petter Selasky pcie_capability_read_dword(struct pci_dev *dev, int pos, u32 *dst) 1131a65ef215SHans Petter Selasky { 1132a65ef215SHans Petter Selasky if (pos & 3) 1133a65ef215SHans Petter Selasky return -EINVAL; 1134a65ef215SHans Petter Selasky 1135a65ef215SHans Petter Selasky if (!pcie_capability_reg_implemented(dev, pos)) 1136a65ef215SHans Petter Selasky return -EINVAL; 1137a65ef215SHans Petter Selasky 1138a65ef215SHans Petter Selasky return pci_read_config_dword(dev, pci_pcie_cap(dev) + pos, dst); 1139a65ef215SHans Petter Selasky } 11408d59ecb2SHans Petter Selasky 114112af734dSHans Petter Selasky static inline int 114212af734dSHans Petter Selasky pcie_capability_read_word(struct pci_dev *dev, int pos, u16 *dst) 114312af734dSHans Petter Selasky { 114412af734dSHans Petter Selasky if (pos & 3) 114512af734dSHans Petter Selasky return -EINVAL; 114612af734dSHans Petter Selasky 114712af734dSHans Petter Selasky if (!pcie_capability_reg_implemented(dev, pos)) 114812af734dSHans Petter Selasky return -EINVAL; 114912af734dSHans Petter Selasky 115012af734dSHans Petter Selasky return pci_read_config_word(dev, pci_pcie_cap(dev) + pos, dst); 115112af734dSHans Petter Selasky } 115212af734dSHans Petter Selasky 115312af734dSHans Petter Selasky static inline int 115412af734dSHans Petter Selasky pcie_capability_write_word(struct pci_dev *dev, int pos, u16 val) 11558d59ecb2SHans Petter Selasky { 11568d59ecb2SHans Petter Selasky if (pos & 1) 11578d59ecb2SHans Petter Selasky return -EINVAL; 11588d59ecb2SHans Petter Selasky 11598d59ecb2SHans Petter Selasky if (!pcie_capability_reg_implemented(dev, pos)) 11608d59ecb2SHans Petter Selasky return 0; 11618d59ecb2SHans Petter Selasky 11628d59ecb2SHans Petter Selasky return pci_write_config_word(dev, pci_pcie_cap(dev) + pos, val); 11638d59ecb2SHans Petter Selasky } 11648d59ecb2SHans Petter Selasky 116585eb99f9SBjoern A. Zeeb static inline int 116685eb99f9SBjoern A. Zeeb pcie_capability_set_word(struct pci_dev *dev, int pos, uint16_t val) 116785eb99f9SBjoern A. Zeeb { 116885eb99f9SBjoern A. Zeeb int error; 116985eb99f9SBjoern A. Zeeb uint16_t v; 117085eb99f9SBjoern A. Zeeb 117185eb99f9SBjoern A. Zeeb error = pcie_capability_read_word(dev, pos, &v); 117285eb99f9SBjoern A. Zeeb if (error != 0) 117385eb99f9SBjoern A. Zeeb return (error); 117485eb99f9SBjoern A. Zeeb 117585eb99f9SBjoern A. Zeeb v |= val; 117685eb99f9SBjoern A. Zeeb 117785eb99f9SBjoern A. Zeeb error = pcie_capability_write_word(dev, pos, v); 117885eb99f9SBjoern A. Zeeb return (error); 117985eb99f9SBjoern A. Zeeb } 118085eb99f9SBjoern A. Zeeb 1181c41d8354SBjoern A. Zeeb static inline int 1182c41d8354SBjoern A. Zeeb pcie_capability_clear_word(struct pci_dev *dev, int pos, uint16_t val) 1183c41d8354SBjoern A. Zeeb { 1184c41d8354SBjoern A. Zeeb int error; 1185c41d8354SBjoern A. Zeeb uint16_t v; 1186c41d8354SBjoern A. Zeeb 1187c41d8354SBjoern A. Zeeb error = pcie_capability_read_word(dev, pos, &v); 1188c41d8354SBjoern A. Zeeb if (error != 0) 1189c41d8354SBjoern A. Zeeb return (error); 1190c41d8354SBjoern A. Zeeb 1191c41d8354SBjoern A. Zeeb v &= ~val; 1192c41d8354SBjoern A. Zeeb 1193c41d8354SBjoern A. Zeeb error = pcie_capability_write_word(dev, pos, v); 1194c41d8354SBjoern A. Zeeb return (error); 1195c41d8354SBjoern A. Zeeb } 1196c41d8354SBjoern A. Zeeb 1197a65ef215SHans Petter Selasky static inline int pcie_get_minimum_link(struct pci_dev *dev, 1198a65ef215SHans Petter Selasky enum pci_bus_speed *speed, enum pcie_link_width *width) 1199a65ef215SHans Petter Selasky { 1200a65ef215SHans Petter Selasky *speed = PCI_SPEED_UNKNOWN; 1201a65ef215SHans Petter Selasky *width = PCIE_LNK_WIDTH_UNKNOWN; 1202a65ef215SHans Petter Selasky return (0); 1203a65ef215SHans Petter Selasky } 1204a65ef215SHans Petter Selasky 1205a65ef215SHans Petter Selasky static inline int 1206a65ef215SHans Petter Selasky pci_num_vf(struct pci_dev *dev) 1207a65ef215SHans Petter Selasky { 1208a65ef215SHans Petter Selasky return (0); 1209a65ef215SHans Petter Selasky } 1210a65ef215SHans Petter Selasky 1211ab62989aSHans Petter Selasky static inline enum pci_bus_speed 1212ab62989aSHans Petter Selasky pcie_get_speed_cap(struct pci_dev *dev) 1213ab62989aSHans Petter Selasky { 1214ab62989aSHans Petter Selasky device_t root; 1215ab62989aSHans Petter Selasky uint32_t lnkcap, lnkcap2; 1216ab62989aSHans Petter Selasky int error, pos; 1217ab62989aSHans Petter Selasky 1218ab62989aSHans Petter Selasky root = device_get_parent(dev->dev.bsddev); 1219ab62989aSHans Petter Selasky if (root == NULL) 1220ab62989aSHans Petter Selasky return (PCI_SPEED_UNKNOWN); 1221ab62989aSHans Petter Selasky root = device_get_parent(root); 1222ab62989aSHans Petter Selasky if (root == NULL) 1223ab62989aSHans Petter Selasky return (PCI_SPEED_UNKNOWN); 1224ab62989aSHans Petter Selasky root = device_get_parent(root); 1225ab62989aSHans Petter Selasky if (root == NULL) 1226ab62989aSHans Petter Selasky return (PCI_SPEED_UNKNOWN); 1227ab62989aSHans Petter Selasky 1228ab62989aSHans Petter Selasky if (pci_get_vendor(root) == PCI_VENDOR_ID_VIA || 1229ab62989aSHans Petter Selasky pci_get_vendor(root) == PCI_VENDOR_ID_SERVERWORKS) 1230ab62989aSHans Petter Selasky return (PCI_SPEED_UNKNOWN); 1231ab62989aSHans Petter Selasky 1232ab62989aSHans Petter Selasky if ((error = pci_find_cap(root, PCIY_EXPRESS, &pos)) != 0) 1233ab62989aSHans Petter Selasky return (PCI_SPEED_UNKNOWN); 1234ab62989aSHans Petter Selasky 1235ab62989aSHans Petter Selasky lnkcap2 = pci_read_config(root, pos + PCIER_LINK_CAP2, 4); 1236ab62989aSHans Petter Selasky 1237ab62989aSHans Petter Selasky if (lnkcap2) { /* PCIe r3.0-compliant */ 1238ab62989aSHans Petter Selasky if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_2_5GB) 1239ab62989aSHans Petter Selasky return (PCIE_SPEED_2_5GT); 1240ab62989aSHans Petter Selasky if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_5_0GB) 1241ab62989aSHans Petter Selasky return (PCIE_SPEED_5_0GT); 1242ab62989aSHans Petter Selasky if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_8_0GB) 1243ab62989aSHans Petter Selasky return (PCIE_SPEED_8_0GT); 1244ab62989aSHans Petter Selasky if (lnkcap2 & PCI_EXP_LNKCAP2_SLS_16_0GB) 1245ab62989aSHans Petter Selasky return (PCIE_SPEED_16_0GT); 1246ab62989aSHans Petter Selasky } else { /* pre-r3.0 */ 1247ab62989aSHans Petter Selasky lnkcap = pci_read_config(root, pos + PCIER_LINK_CAP, 4); 1248ab62989aSHans Petter Selasky if (lnkcap & PCI_EXP_LNKCAP_SLS_2_5GB) 1249ab62989aSHans Petter Selasky return (PCIE_SPEED_2_5GT); 1250ab62989aSHans Petter Selasky if (lnkcap & PCI_EXP_LNKCAP_SLS_5_0GB) 1251ab62989aSHans Petter Selasky return (PCIE_SPEED_5_0GT); 1252ab62989aSHans Petter Selasky if (lnkcap & PCI_EXP_LNKCAP_SLS_8_0GB) 1253ab62989aSHans Petter Selasky return (PCIE_SPEED_8_0GT); 1254ab62989aSHans Petter Selasky if (lnkcap & PCI_EXP_LNKCAP_SLS_16_0GB) 1255ab62989aSHans Petter Selasky return (PCIE_SPEED_16_0GT); 1256ab62989aSHans Petter Selasky } 1257ab62989aSHans Petter Selasky return (PCI_SPEED_UNKNOWN); 1258ab62989aSHans Petter Selasky } 1259ab62989aSHans Petter Selasky 1260ab62989aSHans Petter Selasky static inline enum pcie_link_width 1261ab62989aSHans Petter Selasky pcie_get_width_cap(struct pci_dev *dev) 1262ab62989aSHans Petter Selasky { 1263ab62989aSHans Petter Selasky uint32_t lnkcap; 1264ab62989aSHans Petter Selasky 1265ab62989aSHans Petter Selasky pcie_capability_read_dword(dev, PCI_EXP_LNKCAP, &lnkcap); 1266ab62989aSHans Petter Selasky if (lnkcap) 1267ab62989aSHans Petter Selasky return ((lnkcap & PCI_EXP_LNKCAP_MLW) >> 4); 1268ab62989aSHans Petter Selasky 1269ab62989aSHans Petter Selasky return (PCIE_LNK_WIDTH_UNKNOWN); 1270ab62989aSHans Petter Selasky } 1271ab62989aSHans Petter Selasky 1272b4edb17cSHans Petter Selasky static inline int 1273b4edb17cSHans Petter Selasky pcie_get_mps(struct pci_dev *dev) 1274b4edb17cSHans Petter Selasky { 1275b4edb17cSHans Petter Selasky return (pci_get_max_payload(dev->dev.bsddev)); 1276b4edb17cSHans Petter Selasky } 1277b4edb17cSHans Petter Selasky 1278b4edb17cSHans Petter Selasky static inline uint32_t 1279b4edb17cSHans Petter Selasky PCIE_SPEED2MBS_ENC(enum pci_bus_speed spd) 1280b4edb17cSHans Petter Selasky { 1281b4edb17cSHans Petter Selasky 1282b4edb17cSHans Petter Selasky switch(spd) { 1283b4edb17cSHans Petter Selasky case PCIE_SPEED_16_0GT: 1284b4edb17cSHans Petter Selasky return (16000 * 128 / 130); 1285b4edb17cSHans Petter Selasky case PCIE_SPEED_8_0GT: 1286b4edb17cSHans Petter Selasky return (8000 * 128 / 130); 1287b4edb17cSHans Petter Selasky case PCIE_SPEED_5_0GT: 1288b4edb17cSHans Petter Selasky return (5000 * 8 / 10); 1289b4edb17cSHans Petter Selasky case PCIE_SPEED_2_5GT: 1290b4edb17cSHans Petter Selasky return (2500 * 8 / 10); 1291b4edb17cSHans Petter Selasky default: 1292b4edb17cSHans Petter Selasky return (0); 1293b4edb17cSHans Petter Selasky } 1294b4edb17cSHans Petter Selasky } 1295b4edb17cSHans Petter Selasky 1296b4edb17cSHans Petter Selasky static inline uint32_t 1297b4edb17cSHans Petter Selasky pcie_bandwidth_available(struct pci_dev *pdev, 1298b4edb17cSHans Petter Selasky struct pci_dev **limiting, 1299b4edb17cSHans Petter Selasky enum pci_bus_speed *speed, 1300b4edb17cSHans Petter Selasky enum pcie_link_width *width) 1301b4edb17cSHans Petter Selasky { 1302b4edb17cSHans Petter Selasky enum pci_bus_speed nspeed = pcie_get_speed_cap(pdev); 1303b4edb17cSHans Petter Selasky enum pcie_link_width nwidth = pcie_get_width_cap(pdev); 1304b4edb17cSHans Petter Selasky 1305b4edb17cSHans Petter Selasky if (speed) 1306b4edb17cSHans Petter Selasky *speed = nspeed; 1307b4edb17cSHans Petter Selasky if (width) 1308b4edb17cSHans Petter Selasky *width = nwidth; 1309b4edb17cSHans Petter Selasky 1310b4edb17cSHans Petter Selasky return (nwidth * PCIE_SPEED2MBS_ENC(nspeed)); 1311b4edb17cSHans Petter Selasky } 1312b4edb17cSHans Petter Selasky 13138e106c52SBjoern A. Zeeb static inline struct pci_dev * 13148e106c52SBjoern A. Zeeb pcie_find_root_port(struct pci_dev *pdev) 13158e106c52SBjoern A. Zeeb { 13168e106c52SBjoern A. Zeeb device_t root; 13178e106c52SBjoern A. Zeeb 13188e106c52SBjoern A. Zeeb if (pdev->root != NULL) 13198e106c52SBjoern A. Zeeb return (pdev->root); 13208e106c52SBjoern A. Zeeb 13218e106c52SBjoern A. Zeeb root = pci_find_pcie_root_port(pdev->dev.bsddev); 13228e106c52SBjoern A. Zeeb if (root == NULL) 13238e106c52SBjoern A. Zeeb return (NULL); 13248e106c52SBjoern A. Zeeb 13258e106c52SBjoern A. Zeeb pdev->root = lkpinew_pci_dev(root); 13268e106c52SBjoern A. Zeeb return (pdev->root); 13278e106c52SBjoern A. Zeeb } 13288e106c52SBjoern A. Zeeb 13298e106c52SBjoern A. Zeeb /* This is needed when people rip out the device "HotPlug". */ 13308e106c52SBjoern A. Zeeb static inline void 13318e106c52SBjoern A. Zeeb pci_lock_rescan_remove(void) 13328e106c52SBjoern A. Zeeb { 13338e106c52SBjoern A. Zeeb } 13348e106c52SBjoern A. Zeeb 13358e106c52SBjoern A. Zeeb static inline void 13368e106c52SBjoern A. Zeeb pci_unlock_rescan_remove(void) 13378e106c52SBjoern A. Zeeb { 13388e106c52SBjoern A. Zeeb } 13398e106c52SBjoern A. Zeeb 13408e106c52SBjoern A. Zeeb static __inline void 13418e106c52SBjoern A. Zeeb pci_stop_and_remove_bus_device(struct pci_dev *pdev) 13428e106c52SBjoern A. Zeeb { 13438e106c52SBjoern A. Zeeb } 13448e106c52SBjoern A. Zeeb 1345253dbe74SHans Petter Selasky /* 1346253dbe74SHans Petter Selasky * The following functions can be used to attach/detach the LinuxKPI's 1347253dbe74SHans Petter Selasky * PCI device runtime. The pci_driver and pci_device_id pointer is 1348253dbe74SHans Petter Selasky * allowed to be NULL. Other pointers must be all valid. 1349253dbe74SHans Petter Selasky * The pci_dev structure should be zero-initialized before passed 1350253dbe74SHans Petter Selasky * to the linux_pci_attach_device function. 1351253dbe74SHans Petter Selasky */ 1352253dbe74SHans Petter Selasky extern int linux_pci_attach_device(device_t, struct pci_driver *, 1353253dbe74SHans Petter Selasky const struct pci_device_id *, struct pci_dev *); 1354253dbe74SHans Petter Selasky extern int linux_pci_detach_device(struct pci_dev *); 1355253dbe74SHans Petter Selasky 13565e30a739SEmmanuel Vadot static inline int 13575e30a739SEmmanuel Vadot pci_dev_present(const struct pci_device_id *cur) 13585e30a739SEmmanuel Vadot { 13595e30a739SEmmanuel Vadot while (cur != NULL && (cur->vendor || cur->device)) { 13605e30a739SEmmanuel Vadot if (pci_find_device(cur->vendor, cur->device) != NULL) { 13615e30a739SEmmanuel Vadot return (1); 13625e30a739SEmmanuel Vadot } 13635e30a739SEmmanuel Vadot cur++; 13645e30a739SEmmanuel Vadot } 13655e30a739SEmmanuel Vadot return (0); 13665e30a739SEmmanuel Vadot } 13675e30a739SEmmanuel Vadot 1368105a37caSEmmanuel Vadot struct pci_dev *lkpi_pci_get_domain_bus_and_slot(int domain, 1369105a37caSEmmanuel Vadot unsigned int bus, unsigned int devfn); 1370105a37caSEmmanuel Vadot #define pci_get_domain_bus_and_slot(domain, bus, devfn) \ 1371105a37caSEmmanuel Vadot lkpi_pci_get_domain_bus_and_slot(domain, bus, devfn) 1372105a37caSEmmanuel Vadot 1373105a37caSEmmanuel Vadot static inline int 1374105a37caSEmmanuel Vadot pci_domain_nr(struct pci_bus *pbus) 1375105a37caSEmmanuel Vadot { 1376105a37caSEmmanuel Vadot 13771fac2cb4SBjoern A. Zeeb return (pbus->domain); 1378105a37caSEmmanuel Vadot } 1379105a37caSEmmanuel Vadot 1380105a37caSEmmanuel Vadot static inline int 1381105a37caSEmmanuel Vadot pci_bus_read_config(struct pci_bus *bus, unsigned int devfn, 1382105a37caSEmmanuel Vadot int pos, uint32_t *val, int len) 1383105a37caSEmmanuel Vadot { 1384105a37caSEmmanuel Vadot 1385105a37caSEmmanuel Vadot *val = pci_read_config(bus->self->dev.bsddev, pos, len); 1386105a37caSEmmanuel Vadot return (0); 1387105a37caSEmmanuel Vadot } 1388105a37caSEmmanuel Vadot 1389105a37caSEmmanuel Vadot static inline int 1390105a37caSEmmanuel Vadot pci_bus_read_config_word(struct pci_bus *bus, unsigned int devfn, int pos, u16 *val) 1391105a37caSEmmanuel Vadot { 1392105a37caSEmmanuel Vadot uint32_t tmp; 1393105a37caSEmmanuel Vadot int ret; 1394105a37caSEmmanuel Vadot 1395105a37caSEmmanuel Vadot ret = pci_bus_read_config(bus, devfn, pos, &tmp, 2); 1396105a37caSEmmanuel Vadot *val = (u16)tmp; 1397105a37caSEmmanuel Vadot return (ret); 1398105a37caSEmmanuel Vadot } 1399105a37caSEmmanuel Vadot 1400105a37caSEmmanuel Vadot static inline int 1401105a37caSEmmanuel Vadot pci_bus_read_config_byte(struct pci_bus *bus, unsigned int devfn, int pos, u8 *val) 1402105a37caSEmmanuel Vadot { 1403105a37caSEmmanuel Vadot uint32_t tmp; 1404105a37caSEmmanuel Vadot int ret; 1405105a37caSEmmanuel Vadot 1406105a37caSEmmanuel Vadot ret = pci_bus_read_config(bus, devfn, pos, &tmp, 1); 1407105a37caSEmmanuel Vadot *val = (u8)tmp; 1408105a37caSEmmanuel Vadot return (ret); 1409105a37caSEmmanuel Vadot } 1410105a37caSEmmanuel Vadot 1411105a37caSEmmanuel Vadot static inline int 1412105a37caSEmmanuel Vadot pci_bus_write_config(struct pci_bus *bus, unsigned int devfn, int pos, 1413105a37caSEmmanuel Vadot uint32_t val, int size) 1414105a37caSEmmanuel Vadot { 1415105a37caSEmmanuel Vadot 1416105a37caSEmmanuel Vadot pci_write_config(bus->self->dev.bsddev, pos, val, size); 1417105a37caSEmmanuel Vadot return (0); 1418105a37caSEmmanuel Vadot } 1419105a37caSEmmanuel Vadot 1420105a37caSEmmanuel Vadot static inline int 1421105a37caSEmmanuel Vadot pci_bus_write_config_byte(struct pci_bus *bus, unsigned int devfn, int pos, 1422105a37caSEmmanuel Vadot uint8_t val) 1423105a37caSEmmanuel Vadot { 1424105a37caSEmmanuel Vadot return (pci_bus_write_config(bus, devfn, pos, val, 1)); 1425105a37caSEmmanuel Vadot } 1426105a37caSEmmanuel Vadot 1427105a37caSEmmanuel Vadot static inline int 1428105a37caSEmmanuel Vadot pci_bus_write_config_word(struct pci_bus *bus, unsigned int devfn, int pos, 1429105a37caSEmmanuel Vadot uint16_t val) 1430105a37caSEmmanuel Vadot { 1431105a37caSEmmanuel Vadot return (pci_bus_write_config(bus, devfn, pos, val, 2)); 1432105a37caSEmmanuel Vadot } 1433105a37caSEmmanuel Vadot 1434105a37caSEmmanuel Vadot struct pci_dev *lkpi_pci_get_class(unsigned int class, struct pci_dev *from); 1435105a37caSEmmanuel Vadot #define pci_get_class(class, from) lkpi_pci_get_class(class, from) 1436105a37caSEmmanuel Vadot 1437d4a4960cSBjoern A. Zeeb /* -------------------------------------------------------------------------- */ 1438d4a4960cSBjoern A. Zeeb 1439d4a4960cSBjoern A. Zeeb static inline int 1440d4a4960cSBjoern A. Zeeb pcim_enable_device(struct pci_dev *pdev) 1441d4a4960cSBjoern A. Zeeb { 1442d4a4960cSBjoern A. Zeeb struct pci_devres *dr; 1443d4a4960cSBjoern A. Zeeb int error; 1444d4a4960cSBjoern A. Zeeb 1445d4a4960cSBjoern A. Zeeb /* Here we cannot run through the pdev->managed check. */ 1446d4a4960cSBjoern A. Zeeb dr = lkpi_pci_devres_get_alloc(pdev); 1447d4a4960cSBjoern A. Zeeb if (dr == NULL) 1448d4a4960cSBjoern A. Zeeb return (-ENOMEM); 1449d4a4960cSBjoern A. Zeeb 1450d4a4960cSBjoern A. Zeeb /* If resources were enabled before do not do it again. */ 1451d4a4960cSBjoern A. Zeeb if (dr->enable_io) 1452d4a4960cSBjoern A. Zeeb return (0); 1453d4a4960cSBjoern A. Zeeb 1454d4a4960cSBjoern A. Zeeb error = pci_enable_device(pdev); 1455d4a4960cSBjoern A. Zeeb if (error == 0) 1456d4a4960cSBjoern A. Zeeb dr->enable_io = true; 1457d4a4960cSBjoern A. Zeeb 1458d4a4960cSBjoern A. Zeeb /* This device is not managed. */ 1459d4a4960cSBjoern A. Zeeb pdev->managed = true; 1460d4a4960cSBjoern A. Zeeb 1461d4a4960cSBjoern A. Zeeb return (error); 1462d4a4960cSBjoern A. Zeeb } 1463d4a4960cSBjoern A. Zeeb 1464d4a4960cSBjoern A. Zeeb static inline void __iomem ** 1465d4a4960cSBjoern A. Zeeb pcim_iomap_table(struct pci_dev *pdev) 1466d4a4960cSBjoern A. Zeeb { 1467d4a4960cSBjoern A. Zeeb struct pcim_iomap_devres *dr; 1468d4a4960cSBjoern A. Zeeb 1469d4a4960cSBjoern A. Zeeb dr = lkpi_pcim_iomap_devres_find(pdev); 1470d4a4960cSBjoern A. Zeeb if (dr == NULL) 1471d4a4960cSBjoern A. Zeeb return (NULL); 1472d4a4960cSBjoern A. Zeeb 1473d4a4960cSBjoern A. Zeeb /* 1474d4a4960cSBjoern A. Zeeb * If the driver has manually set a flag to be able to request the 1475d4a4960cSBjoern A. Zeeb * resource to use bus_read/write_<n>, return the shadow table. 1476d4a4960cSBjoern A. Zeeb */ 1477d4a4960cSBjoern A. Zeeb if (pdev->want_iomap_res) 1478d4a4960cSBjoern A. Zeeb return ((void **)dr->res_table); 1479d4a4960cSBjoern A. Zeeb 1480d4a4960cSBjoern A. Zeeb /* This is the Linux default. */ 1481d4a4960cSBjoern A. Zeeb return (dr->mmio_table); 1482d4a4960cSBjoern A. Zeeb } 1483d4a4960cSBjoern A. Zeeb 1484d4a4960cSBjoern A. Zeeb static inline int 148530048f61SBjoern A. Zeeb pcim_iomap_regions(struct pci_dev *pdev, uint32_t mask, const char *name) 1486d4a4960cSBjoern A. Zeeb { 1487d4a4960cSBjoern A. Zeeb struct pcim_iomap_devres *dr; 1488d4a4960cSBjoern A. Zeeb void *res; 148930048f61SBjoern A. Zeeb uint32_t mappings; 149030048f61SBjoern A. Zeeb int bar; 1491d4a4960cSBjoern A. Zeeb 1492d4a4960cSBjoern A. Zeeb dr = lkpi_pcim_iomap_devres_find(pdev); 1493d4a4960cSBjoern A. Zeeb if (dr == NULL) 1494d4a4960cSBjoern A. Zeeb return (-ENOMEM); 1495d4a4960cSBjoern A. Zeeb 1496d4a4960cSBjoern A. Zeeb /* Now iomap all the requested (by "mask") ones. */ 1497d4a4960cSBjoern A. Zeeb for (bar = mappings = 0; mappings != mask; bar++) { 1498d4a4960cSBjoern A. Zeeb if ((mask & (1 << bar)) == 0) 1499d4a4960cSBjoern A. Zeeb continue; 1500d4a4960cSBjoern A. Zeeb 1501d4a4960cSBjoern A. Zeeb /* Request double is not allowed. */ 1502d4a4960cSBjoern A. Zeeb if (dr->mmio_table[bar] != NULL) { 1503d4a4960cSBjoern A. Zeeb device_printf(pdev->dev.bsddev, "%s: bar %d %p\n", 1504d4a4960cSBjoern A. Zeeb __func__, bar, dr->mmio_table[bar]); 1505d4a4960cSBjoern A. Zeeb goto err; 1506d4a4960cSBjoern A. Zeeb } 1507d4a4960cSBjoern A. Zeeb 1508d4a4960cSBjoern A. Zeeb res = _lkpi_pci_iomap(pdev, bar, 0); 1509d4a4960cSBjoern A. Zeeb if (res == NULL) 1510d4a4960cSBjoern A. Zeeb goto err; 1511d4a4960cSBjoern A. Zeeb dr->mmio_table[bar] = (void *)rman_get_bushandle(res); 1512d4a4960cSBjoern A. Zeeb dr->res_table[bar] = res; 1513d4a4960cSBjoern A. Zeeb 1514d4a4960cSBjoern A. Zeeb mappings |= (1 << bar); 1515d4a4960cSBjoern A. Zeeb } 1516d4a4960cSBjoern A. Zeeb 1517d4a4960cSBjoern A. Zeeb return (0); 1518d4a4960cSBjoern A. Zeeb err: 1519d4a4960cSBjoern A. Zeeb for (bar = PCIR_MAX_BAR_0; bar >= 0; bar--) { 1520d4a4960cSBjoern A. Zeeb if ((mappings & (1 << bar)) != 0) { 1521d4a4960cSBjoern A. Zeeb res = dr->mmio_table[bar]; 1522d4a4960cSBjoern A. Zeeb if (res == NULL) 1523d4a4960cSBjoern A. Zeeb continue; 1524d4a4960cSBjoern A. Zeeb pci_iounmap(pdev, res); 1525d4a4960cSBjoern A. Zeeb } 1526d4a4960cSBjoern A. Zeeb } 1527d4a4960cSBjoern A. Zeeb 1528d4a4960cSBjoern A. Zeeb return (-EINVAL); 1529d4a4960cSBjoern A. Zeeb } 1530d4a4960cSBjoern A. Zeeb 153130048f61SBjoern A. Zeeb static inline int 153230048f61SBjoern A. Zeeb pcim_iomap_regions_request_all(struct pci_dev *pdev, uint32_t mask, char *name) 153330048f61SBjoern A. Zeeb { 153430048f61SBjoern A. Zeeb uint32_t requests, req_mask; 153530048f61SBjoern A. Zeeb int bar, error; 153630048f61SBjoern A. Zeeb 153730048f61SBjoern A. Zeeb /* Request all the BARs ("regions") we do not iomap. */ 153830048f61SBjoern A. Zeeb req_mask = ((1 << (PCIR_MAX_BAR_0 + 1)) - 1) & ~mask; 153930048f61SBjoern A. Zeeb for (bar = requests = 0; requests != req_mask; bar++) { 154030048f61SBjoern A. Zeeb if ((req_mask & (1 << bar)) == 0) 154130048f61SBjoern A. Zeeb continue; 154230048f61SBjoern A. Zeeb error = pci_request_region(pdev, bar, name); 154330048f61SBjoern A. Zeeb if (error != 0 && error != -ENODEV) 154430048f61SBjoern A. Zeeb goto err; 154530048f61SBjoern A. Zeeb requests |= (1 << bar); 154630048f61SBjoern A. Zeeb } 154730048f61SBjoern A. Zeeb 154830048f61SBjoern A. Zeeb error = pcim_iomap_regions(pdev, mask, name); 154930048f61SBjoern A. Zeeb if (error != 0) 155030048f61SBjoern A. Zeeb goto err; 155130048f61SBjoern A. Zeeb 155230048f61SBjoern A. Zeeb return (0); 155330048f61SBjoern A. Zeeb 155430048f61SBjoern A. Zeeb err: 155530048f61SBjoern A. Zeeb for (bar = PCIR_MAX_BAR_0; bar >= 0; bar--) { 155630048f61SBjoern A. Zeeb if ((requests & (1 << bar)) != 0) 155730048f61SBjoern A. Zeeb pci_release_region(pdev, bar); 155830048f61SBjoern A. Zeeb } 155930048f61SBjoern A. Zeeb 156030048f61SBjoern A. Zeeb return (-EINVAL); 156130048f61SBjoern A. Zeeb } 156230048f61SBjoern A. Zeeb 1563d4a4960cSBjoern A. Zeeb /* This is a FreeBSD extension so we can use bus_*(). */ 1564d4a4960cSBjoern A. Zeeb static inline void 1565d4a4960cSBjoern A. Zeeb linuxkpi_pcim_want_to_use_bus_functions(struct pci_dev *pdev) 1566d4a4960cSBjoern A. Zeeb { 1567d4a4960cSBjoern A. Zeeb pdev->want_iomap_res = true; 1568d4a4960cSBjoern A. Zeeb } 1569d4a4960cSBjoern A. Zeeb 15706890e327SEmmanuel Vadot static inline bool 15716890e327SEmmanuel Vadot pci_is_thunderbolt_attached(struct pci_dev *pdev) 15726890e327SEmmanuel Vadot { 15736890e327SEmmanuel Vadot 15746890e327SEmmanuel Vadot return (false); 15756890e327SEmmanuel Vadot } 15766890e327SEmmanuel Vadot 15776890e327SEmmanuel Vadot static inline void * 15786890e327SEmmanuel Vadot pci_platform_rom(struct pci_dev *pdev, size_t *size) 15796890e327SEmmanuel Vadot { 15806890e327SEmmanuel Vadot 15816890e327SEmmanuel Vadot return (NULL); 15826890e327SEmmanuel Vadot } 15836890e327SEmmanuel Vadot 15846890e327SEmmanuel Vadot static inline void 15856890e327SEmmanuel Vadot pci_ignore_hotplug(struct pci_dev *pdev) 15866890e327SEmmanuel Vadot { 15876890e327SEmmanuel Vadot } 15886890e327SEmmanuel Vadot 15894cb3cb2dSJake Freeland static inline const char * 15904cb3cb2dSJake Freeland pci_power_name(pci_power_t state) 15914cb3cb2dSJake Freeland { 15924cb3cb2dSJake Freeland int pstate = state + 1; 15934cb3cb2dSJake Freeland 15944cb3cb2dSJake Freeland if (pstate >= 0 && pstate < nitems(pci_power_names)) 15954cb3cb2dSJake Freeland return (pci_power_names[pstate]); 15964cb3cb2dSJake Freeland else 15974cb3cb2dSJake Freeland return (pci_power_names[0]); 15984cb3cb2dSJake Freeland } 15994cb3cb2dSJake Freeland 16006890e327SEmmanuel Vadot static inline int 16016890e327SEmmanuel Vadot pcie_get_readrq(struct pci_dev *dev) 16026890e327SEmmanuel Vadot { 16036890e327SEmmanuel Vadot u16 ctl; 16046890e327SEmmanuel Vadot 16056890e327SEmmanuel Vadot if (pcie_capability_read_word(dev, PCI_EXP_DEVCTL, &ctl)) 16066890e327SEmmanuel Vadot return (-EINVAL); 16076890e327SEmmanuel Vadot 16086890e327SEmmanuel Vadot return (128 << ((ctl & PCI_EXP_DEVCTL_READRQ) >> 12)); 16096890e327SEmmanuel Vadot } 16106890e327SEmmanuel Vadot 1611307f78f3SVladimir Kondratyev #endif /* _LINUXKPI_LINUX_PCI_H_ */ 1612