forked from luck/tmp_suning_uos_patched
1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
1068 lines
45 KiB
C
1068 lines
45 KiB
C
/*
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* pci.h
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*
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* PCI defines and function prototypes
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* Copyright 1994, Drew Eckhardt
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* Copyright 1997--1999 Martin Mares <mj@ucw.cz>
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*
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* For more information, please consult the following manuals (look at
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* http://www.pcisig.com/ for how to get them):
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*
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* PCI BIOS Specification
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* PCI Local Bus Specification
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* PCI to PCI Bridge Specification
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* PCI System Design Guide
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*/
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#ifndef LINUX_PCI_H
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#define LINUX_PCI_H
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#include <linux/mod_devicetable.h>
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/*
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* Under PCI, each device has 256 bytes of configuration address space,
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* of which the first 64 bytes are standardized as follows:
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*/
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#define PCI_VENDOR_ID 0x00 /* 16 bits */
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#define PCI_DEVICE_ID 0x02 /* 16 bits */
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#define PCI_COMMAND 0x04 /* 16 bits */
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#define PCI_COMMAND_IO 0x1 /* Enable response in I/O space */
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#define PCI_COMMAND_MEMORY 0x2 /* Enable response in Memory space */
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#define PCI_COMMAND_MASTER 0x4 /* Enable bus mastering */
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#define PCI_COMMAND_SPECIAL 0x8 /* Enable response to special cycles */
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#define PCI_COMMAND_INVALIDATE 0x10 /* Use memory write and invalidate */
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#define PCI_COMMAND_VGA_PALETTE 0x20 /* Enable palette snooping */
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#define PCI_COMMAND_PARITY 0x40 /* Enable parity checking */
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#define PCI_COMMAND_WAIT 0x80 /* Enable address/data stepping */
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#define PCI_COMMAND_SERR 0x100 /* Enable SERR */
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#define PCI_COMMAND_FAST_BACK 0x200 /* Enable back-to-back writes */
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#define PCI_COMMAND_INTX_DISABLE 0x400 /* INTx Emulation Disable */
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#define PCI_STATUS 0x06 /* 16 bits */
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#define PCI_STATUS_CAP_LIST 0x10 /* Support Capability List */
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#define PCI_STATUS_66MHZ 0x20 /* Support 66 Mhz PCI 2.1 bus */
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#define PCI_STATUS_UDF 0x40 /* Support User Definable Features [obsolete] */
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#define PCI_STATUS_FAST_BACK 0x80 /* Accept fast-back to back */
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#define PCI_STATUS_PARITY 0x100 /* Detected parity error */
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#define PCI_STATUS_DEVSEL_MASK 0x600 /* DEVSEL timing */
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#define PCI_STATUS_DEVSEL_FAST 0x000
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#define PCI_STATUS_DEVSEL_MEDIUM 0x200
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#define PCI_STATUS_DEVSEL_SLOW 0x400
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#define PCI_STATUS_SIG_TARGET_ABORT 0x800 /* Set on target abort */
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#define PCI_STATUS_REC_TARGET_ABORT 0x1000 /* Master ack of " */
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#define PCI_STATUS_REC_MASTER_ABORT 0x2000 /* Set on master abort */
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#define PCI_STATUS_SIG_SYSTEM_ERROR 0x4000 /* Set when we drive SERR */
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#define PCI_STATUS_DETECTED_PARITY 0x8000 /* Set on parity error */
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#define PCI_CLASS_REVISION 0x08 /* High 24 bits are class, low 8
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revision */
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#define PCI_REVISION_ID 0x08 /* Revision ID */
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#define PCI_CLASS_PROG 0x09 /* Reg. Level Programming Interface */
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#define PCI_CLASS_DEVICE 0x0a /* Device class */
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#define PCI_CACHE_LINE_SIZE 0x0c /* 8 bits */
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#define PCI_LATENCY_TIMER 0x0d /* 8 bits */
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#define PCI_HEADER_TYPE 0x0e /* 8 bits */
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#define PCI_HEADER_TYPE_NORMAL 0
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#define PCI_HEADER_TYPE_BRIDGE 1
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#define PCI_HEADER_TYPE_CARDBUS 2
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#define PCI_BIST 0x0f /* 8 bits */
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#define PCI_BIST_CODE_MASK 0x0f /* Return result */
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#define PCI_BIST_START 0x40 /* 1 to start BIST, 2 secs or less */
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#define PCI_BIST_CAPABLE 0x80 /* 1 if BIST capable */
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/*
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* Base addresses specify locations in memory or I/O space.
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* Decoded size can be determined by writing a value of
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* 0xffffffff to the register, and reading it back. Only
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* 1 bits are decoded.
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*/
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#define PCI_BASE_ADDRESS_0 0x10 /* 32 bits */
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#define PCI_BASE_ADDRESS_1 0x14 /* 32 bits [htype 0,1 only] */
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#define PCI_BASE_ADDRESS_2 0x18 /* 32 bits [htype 0 only] */
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#define PCI_BASE_ADDRESS_3 0x1c /* 32 bits */
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#define PCI_BASE_ADDRESS_4 0x20 /* 32 bits */
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#define PCI_BASE_ADDRESS_5 0x24 /* 32 bits */
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#define PCI_BASE_ADDRESS_SPACE 0x01 /* 0 = memory, 1 = I/O */
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#define PCI_BASE_ADDRESS_SPACE_IO 0x01
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#define PCI_BASE_ADDRESS_SPACE_MEMORY 0x00
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#define PCI_BASE_ADDRESS_MEM_TYPE_MASK 0x06
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#define PCI_BASE_ADDRESS_MEM_TYPE_32 0x00 /* 32 bit address */
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#define PCI_BASE_ADDRESS_MEM_TYPE_1M 0x02 /* Below 1M [obsolete] */
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#define PCI_BASE_ADDRESS_MEM_TYPE_64 0x04 /* 64 bit address */
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#define PCI_BASE_ADDRESS_MEM_PREFETCH 0x08 /* prefetchable? */
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#define PCI_BASE_ADDRESS_MEM_MASK (~0x0fUL)
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#define PCI_BASE_ADDRESS_IO_MASK (~0x03UL)
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/* bit 1 is reserved if address_space = 1 */
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/* Header type 0 (normal devices) */
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#define PCI_CARDBUS_CIS 0x28
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#define PCI_SUBSYSTEM_VENDOR_ID 0x2c
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#define PCI_SUBSYSTEM_ID 0x2e
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#define PCI_ROM_ADDRESS 0x30 /* Bits 31..11 are address, 10..1 reserved */
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#define PCI_ROM_ADDRESS_ENABLE 0x01
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#define PCI_ROM_ADDRESS_MASK (~0x7ffUL)
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#define PCI_CAPABILITY_LIST 0x34 /* Offset of first capability list entry */
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/* 0x35-0x3b are reserved */
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#define PCI_INTERRUPT_LINE 0x3c /* 8 bits */
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#define PCI_INTERRUPT_PIN 0x3d /* 8 bits */
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#define PCI_MIN_GNT 0x3e /* 8 bits */
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#define PCI_MAX_LAT 0x3f /* 8 bits */
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/* Header type 1 (PCI-to-PCI bridges) */
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#define PCI_PRIMARY_BUS 0x18 /* Primary bus number */
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#define PCI_SECONDARY_BUS 0x19 /* Secondary bus number */
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#define PCI_SUBORDINATE_BUS 0x1a /* Highest bus number behind the bridge */
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#define PCI_SEC_LATENCY_TIMER 0x1b /* Latency timer for secondary interface */
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#define PCI_IO_BASE 0x1c /* I/O range behind the bridge */
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#define PCI_IO_LIMIT 0x1d
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#define PCI_IO_RANGE_TYPE_MASK 0x0fUL /* I/O bridging type */
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#define PCI_IO_RANGE_TYPE_16 0x00
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#define PCI_IO_RANGE_TYPE_32 0x01
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#define PCI_IO_RANGE_MASK (~0x0fUL)
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#define PCI_SEC_STATUS 0x1e /* Secondary status register, only bit 14 used */
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#define PCI_MEMORY_BASE 0x20 /* Memory range behind */
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#define PCI_MEMORY_LIMIT 0x22
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#define PCI_MEMORY_RANGE_TYPE_MASK 0x0fUL
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#define PCI_MEMORY_RANGE_MASK (~0x0fUL)
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#define PCI_PREF_MEMORY_BASE 0x24 /* Prefetchable memory range behind */
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#define PCI_PREF_MEMORY_LIMIT 0x26
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#define PCI_PREF_RANGE_TYPE_MASK 0x0fUL
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#define PCI_PREF_RANGE_TYPE_32 0x00
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#define PCI_PREF_RANGE_TYPE_64 0x01
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#define PCI_PREF_RANGE_MASK (~0x0fUL)
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#define PCI_PREF_BASE_UPPER32 0x28 /* Upper half of prefetchable memory range */
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#define PCI_PREF_LIMIT_UPPER32 0x2c
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#define PCI_IO_BASE_UPPER16 0x30 /* Upper half of I/O addresses */
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#define PCI_IO_LIMIT_UPPER16 0x32
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/* 0x34 same as for htype 0 */
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/* 0x35-0x3b is reserved */
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#define PCI_ROM_ADDRESS1 0x38 /* Same as PCI_ROM_ADDRESS, but for htype 1 */
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/* 0x3c-0x3d are same as for htype 0 */
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#define PCI_BRIDGE_CONTROL 0x3e
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#define PCI_BRIDGE_CTL_PARITY 0x01 /* Enable parity detection on secondary interface */
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#define PCI_BRIDGE_CTL_SERR 0x02 /* The same for SERR forwarding */
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#define PCI_BRIDGE_CTL_NO_ISA 0x04 /* Disable bridging of ISA ports */
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#define PCI_BRIDGE_CTL_VGA 0x08 /* Forward VGA addresses */
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#define PCI_BRIDGE_CTL_MASTER_ABORT 0x20 /* Report master aborts */
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#define PCI_BRIDGE_CTL_BUS_RESET 0x40 /* Secondary bus reset */
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#define PCI_BRIDGE_CTL_FAST_BACK 0x80 /* Fast Back2Back enabled on secondary interface */
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/* Header type 2 (CardBus bridges) */
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#define PCI_CB_CAPABILITY_LIST 0x14
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/* 0x15 reserved */
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#define PCI_CB_SEC_STATUS 0x16 /* Secondary status */
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#define PCI_CB_PRIMARY_BUS 0x18 /* PCI bus number */
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#define PCI_CB_CARD_BUS 0x19 /* CardBus bus number */
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#define PCI_CB_SUBORDINATE_BUS 0x1a /* Subordinate bus number */
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#define PCI_CB_LATENCY_TIMER 0x1b /* CardBus latency timer */
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#define PCI_CB_MEMORY_BASE_0 0x1c
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#define PCI_CB_MEMORY_LIMIT_0 0x20
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#define PCI_CB_MEMORY_BASE_1 0x24
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#define PCI_CB_MEMORY_LIMIT_1 0x28
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#define PCI_CB_IO_BASE_0 0x2c
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#define PCI_CB_IO_BASE_0_HI 0x2e
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#define PCI_CB_IO_LIMIT_0 0x30
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#define PCI_CB_IO_LIMIT_0_HI 0x32
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#define PCI_CB_IO_BASE_1 0x34
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#define PCI_CB_IO_BASE_1_HI 0x36
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#define PCI_CB_IO_LIMIT_1 0x38
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#define PCI_CB_IO_LIMIT_1_HI 0x3a
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#define PCI_CB_IO_RANGE_MASK (~0x03UL)
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/* 0x3c-0x3d are same as for htype 0 */
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#define PCI_CB_BRIDGE_CONTROL 0x3e
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#define PCI_CB_BRIDGE_CTL_PARITY 0x01 /* Similar to standard bridge control register */
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#define PCI_CB_BRIDGE_CTL_SERR 0x02
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#define PCI_CB_BRIDGE_CTL_ISA 0x04
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#define PCI_CB_BRIDGE_CTL_VGA 0x08
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#define PCI_CB_BRIDGE_CTL_MASTER_ABORT 0x20
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#define PCI_CB_BRIDGE_CTL_CB_RESET 0x40 /* CardBus reset */
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#define PCI_CB_BRIDGE_CTL_16BIT_INT 0x80 /* Enable interrupt for 16-bit cards */
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#define PCI_CB_BRIDGE_CTL_PREFETCH_MEM0 0x100 /* Prefetch enable for both memory regions */
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#define PCI_CB_BRIDGE_CTL_PREFETCH_MEM1 0x200
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#define PCI_CB_BRIDGE_CTL_POST_WRITES 0x400
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#define PCI_CB_SUBSYSTEM_VENDOR_ID 0x40
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#define PCI_CB_SUBSYSTEM_ID 0x42
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#define PCI_CB_LEGACY_MODE_BASE 0x44 /* 16-bit PC Card legacy mode base address (ExCa) */
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/* 0x48-0x7f reserved */
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/* Capability lists */
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#define PCI_CAP_LIST_ID 0 /* Capability ID */
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#define PCI_CAP_ID_PM 0x01 /* Power Management */
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#define PCI_CAP_ID_AGP 0x02 /* Accelerated Graphics Port */
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#define PCI_CAP_ID_VPD 0x03 /* Vital Product Data */
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#define PCI_CAP_ID_SLOTID 0x04 /* Slot Identification */
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#define PCI_CAP_ID_MSI 0x05 /* Message Signalled Interrupts */
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#define PCI_CAP_ID_CHSWP 0x06 /* CompactPCI HotSwap */
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#define PCI_CAP_ID_PCIX 0x07 /* PCI-X */
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#define PCI_CAP_ID_SHPC 0x0C /* PCI Standard Hot-Plug Controller */
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#define PCI_CAP_ID_EXP 0x10 /* PCI Express */
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#define PCI_CAP_ID_MSIX 0x11 /* MSI-X */
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#define PCI_CAP_LIST_NEXT 1 /* Next capability in the list */
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#define PCI_CAP_FLAGS 2 /* Capability defined flags (16 bits) */
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#define PCI_CAP_SIZEOF 4
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/* Power Management Registers */
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#define PCI_PM_PMC 2 /* PM Capabilities Register */
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#define PCI_PM_CAP_VER_MASK 0x0007 /* Version */
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#define PCI_PM_CAP_PME_CLOCK 0x0008 /* PME clock required */
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#define PCI_PM_CAP_RESERVED 0x0010 /* Reserved field */
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#define PCI_PM_CAP_DSI 0x0020 /* Device specific initialization */
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#define PCI_PM_CAP_AUX_POWER 0x01C0 /* Auxilliary power support mask */
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#define PCI_PM_CAP_D1 0x0200 /* D1 power state support */
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#define PCI_PM_CAP_D2 0x0400 /* D2 power state support */
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#define PCI_PM_CAP_PME 0x0800 /* PME pin supported */
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#define PCI_PM_CAP_PME_MASK 0xF800 /* PME Mask of all supported states */
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#define PCI_PM_CAP_PME_D0 0x0800 /* PME# from D0 */
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#define PCI_PM_CAP_PME_D1 0x1000 /* PME# from D1 */
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#define PCI_PM_CAP_PME_D2 0x2000 /* PME# from D2 */
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#define PCI_PM_CAP_PME_D3 0x4000 /* PME# from D3 (hot) */
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#define PCI_PM_CAP_PME_D3cold 0x8000 /* PME# from D3 (cold) */
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#define PCI_PM_CTRL 4 /* PM control and status register */
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#define PCI_PM_CTRL_STATE_MASK 0x0003 /* Current power state (D0 to D3) */
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#define PCI_PM_CTRL_PME_ENABLE 0x0100 /* PME pin enable */
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#define PCI_PM_CTRL_DATA_SEL_MASK 0x1e00 /* Data select (??) */
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#define PCI_PM_CTRL_DATA_SCALE_MASK 0x6000 /* Data scale (??) */
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#define PCI_PM_CTRL_PME_STATUS 0x8000 /* PME pin status */
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#define PCI_PM_PPB_EXTENSIONS 6 /* PPB support extensions (??) */
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#define PCI_PM_PPB_B2_B3 0x40 /* Stop clock when in D3hot (??) */
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#define PCI_PM_BPCC_ENABLE 0x80 /* Bus power/clock control enable (??) */
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#define PCI_PM_DATA_REGISTER 7 /* (??) */
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#define PCI_PM_SIZEOF 8
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/* AGP registers */
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#define PCI_AGP_VERSION 2 /* BCD version number */
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#define PCI_AGP_RFU 3 /* Rest of capability flags */
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#define PCI_AGP_STATUS 4 /* Status register */
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#define PCI_AGP_STATUS_RQ_MASK 0xff000000 /* Maximum number of requests - 1 */
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#define PCI_AGP_STATUS_SBA 0x0200 /* Sideband addressing supported */
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#define PCI_AGP_STATUS_64BIT 0x0020 /* 64-bit addressing supported */
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#define PCI_AGP_STATUS_FW 0x0010 /* FW transfers supported */
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#define PCI_AGP_STATUS_RATE4 0x0004 /* 4x transfer rate supported */
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#define PCI_AGP_STATUS_RATE2 0x0002 /* 2x transfer rate supported */
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#define PCI_AGP_STATUS_RATE1 0x0001 /* 1x transfer rate supported */
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#define PCI_AGP_COMMAND 8 /* Control register */
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#define PCI_AGP_COMMAND_RQ_MASK 0xff000000 /* Master: Maximum number of requests */
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#define PCI_AGP_COMMAND_SBA 0x0200 /* Sideband addressing enabled */
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#define PCI_AGP_COMMAND_AGP 0x0100 /* Allow processing of AGP transactions */
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#define PCI_AGP_COMMAND_64BIT 0x0020 /* Allow processing of 64-bit addresses */
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#define PCI_AGP_COMMAND_FW 0x0010 /* Force FW transfers */
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#define PCI_AGP_COMMAND_RATE4 0x0004 /* Use 4x rate */
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#define PCI_AGP_COMMAND_RATE2 0x0002 /* Use 2x rate */
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#define PCI_AGP_COMMAND_RATE1 0x0001 /* Use 1x rate */
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#define PCI_AGP_SIZEOF 12
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/* Vital Product Data */
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#define PCI_VPD_ADDR 2 /* Address to access (15 bits!) */
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#define PCI_VPD_ADDR_MASK 0x7fff /* Address mask */
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#define PCI_VPD_ADDR_F 0x8000 /* Write 0, 1 indicates completion */
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#define PCI_VPD_DATA 4 /* 32-bits of data returned here */
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/* Slot Identification */
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#define PCI_SID_ESR 2 /* Expansion Slot Register */
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#define PCI_SID_ESR_NSLOTS 0x1f /* Number of expansion slots available */
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#define PCI_SID_ESR_FIC 0x20 /* First In Chassis Flag */
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#define PCI_SID_CHASSIS_NR 3 /* Chassis Number */
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/* Message Signalled Interrupts registers */
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#define PCI_MSI_FLAGS 2 /* Various flags */
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#define PCI_MSI_FLAGS_64BIT 0x80 /* 64-bit addresses allowed */
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#define PCI_MSI_FLAGS_QSIZE 0x70 /* Message queue size configured */
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#define PCI_MSI_FLAGS_QMASK 0x0e /* Maximum queue size available */
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#define PCI_MSI_FLAGS_ENABLE 0x01 /* MSI feature enabled */
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#define PCI_MSI_FLAGS_MASKBIT 0x100 /* 64-bit mask bits allowed */
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#define PCI_MSI_RFU 3 /* Rest of capability flags */
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#define PCI_MSI_ADDRESS_LO 4 /* Lower 32 bits */
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#define PCI_MSI_ADDRESS_HI 8 /* Upper 32 bits (if PCI_MSI_FLAGS_64BIT set) */
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#define PCI_MSI_DATA_32 8 /* 16 bits of data for 32-bit devices */
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#define PCI_MSI_DATA_64 12 /* 16 bits of data for 64-bit devices */
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#define PCI_MSI_MASK_BIT 16 /* Mask bits register */
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/* CompactPCI Hotswap Register */
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#define PCI_CHSWP_CSR 2 /* Control and Status Register */
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#define PCI_CHSWP_DHA 0x01 /* Device Hiding Arm */
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#define PCI_CHSWP_EIM 0x02 /* ENUM# Signal Mask */
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#define PCI_CHSWP_PIE 0x04 /* Pending Insert or Extract */
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#define PCI_CHSWP_LOO 0x08 /* LED On / Off */
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#define PCI_CHSWP_PI 0x30 /* Programming Interface */
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#define PCI_CHSWP_EXT 0x40 /* ENUM# status - extraction */
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#define PCI_CHSWP_INS 0x80 /* ENUM# status - insertion */
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/* PCI-X registers */
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#define PCI_X_CMD 2 /* Modes & Features */
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#define PCI_X_CMD_DPERR_E 0x0001 /* Data Parity Error Recovery Enable */
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#define PCI_X_CMD_ERO 0x0002 /* Enable Relaxed Ordering */
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#define PCI_X_CMD_MAX_READ 0x000c /* Max Memory Read Byte Count */
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#define PCI_X_CMD_MAX_SPLIT 0x0070 /* Max Outstanding Split Transactions */
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#define PCI_X_CMD_VERSION(x) (((x) >> 12) & 3) /* Version */
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#define PCI_X_STATUS 4 /* PCI-X capabilities */
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#define PCI_X_STATUS_DEVFN 0x000000ff /* A copy of devfn */
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#define PCI_X_STATUS_BUS 0x0000ff00 /* A copy of bus nr */
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#define PCI_X_STATUS_64BIT 0x00010000 /* 64-bit device */
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#define PCI_X_STATUS_133MHZ 0x00020000 /* 133 MHz capable */
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#define PCI_X_STATUS_SPL_DISC 0x00040000 /* Split Completion Discarded */
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#define PCI_X_STATUS_UNX_SPL 0x00080000 /* Unexpected Split Completion */
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#define PCI_X_STATUS_COMPLEX 0x00100000 /* Device Complexity */
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#define PCI_X_STATUS_MAX_READ 0x00600000 /* Designed Max Memory Read Count */
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#define PCI_X_STATUS_MAX_SPLIT 0x03800000 /* Designed Max Outstanding Split Transactions */
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#define PCI_X_STATUS_MAX_CUM 0x1c000000 /* Designed Max Cumulative Read Size */
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#define PCI_X_STATUS_SPL_ERR 0x20000000 /* Rcvd Split Completion Error Msg */
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#define PCI_X_STATUS_266MHZ 0x40000000 /* 266 MHz capable */
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#define PCI_X_STATUS_533MHZ 0x80000000 /* 533 MHz capable */
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/* PCI Express capability registers */
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#define PCI_EXP_FLAGS 2 /* Capabilities register */
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#define PCI_EXP_FLAGS_VERS 0x000f /* Capability version */
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#define PCI_EXP_FLAGS_TYPE 0x00f0 /* Device/Port type */
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#define PCI_EXP_TYPE_ENDPOINT 0x0 /* Express Endpoint */
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#define PCI_EXP_TYPE_LEG_END 0x1 /* Legacy Endpoint */
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#define PCI_EXP_TYPE_ROOT_PORT 0x4 /* Root Port */
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#define PCI_EXP_TYPE_UPSTREAM 0x5 /* Upstream Port */
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#define PCI_EXP_TYPE_DOWNSTREAM 0x6 /* Downstream Port */
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#define PCI_EXP_TYPE_PCI_BRIDGE 0x7 /* PCI/PCI-X Bridge */
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#define PCI_EXP_FLAGS_SLOT 0x0100 /* Slot implemented */
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#define PCI_EXP_FLAGS_IRQ 0x3e00 /* Interrupt message number */
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#define PCI_EXP_DEVCAP 4 /* Device capabilities */
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#define PCI_EXP_DEVCAP_PAYLOAD 0x07 /* Max_Payload_Size */
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#define PCI_EXP_DEVCAP_PHANTOM 0x18 /* Phantom functions */
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#define PCI_EXP_DEVCAP_EXT_TAG 0x20 /* Extended tags */
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#define PCI_EXP_DEVCAP_L0S 0x1c0 /* L0s Acceptable Latency */
|
|
#define PCI_EXP_DEVCAP_L1 0xe00 /* L1 Acceptable Latency */
|
|
#define PCI_EXP_DEVCAP_ATN_BUT 0x1000 /* Attention Button Present */
|
|
#define PCI_EXP_DEVCAP_ATN_IND 0x2000 /* Attention Indicator Present */
|
|
#define PCI_EXP_DEVCAP_PWR_IND 0x4000 /* Power Indicator Present */
|
|
#define PCI_EXP_DEVCAP_PWR_VAL 0x3fc0000 /* Slot Power Limit Value */
|
|
#define PCI_EXP_DEVCAP_PWR_SCL 0xc000000 /* Slot Power Limit Scale */
|
|
#define PCI_EXP_DEVCTL 8 /* Device Control */
|
|
#define PCI_EXP_DEVCTL_CERE 0x0001 /* Correctable Error Reporting En. */
|
|
#define PCI_EXP_DEVCTL_NFERE 0x0002 /* Non-Fatal Error Reporting Enable */
|
|
#define PCI_EXP_DEVCTL_FERE 0x0004 /* Fatal Error Reporting Enable */
|
|
#define PCI_EXP_DEVCTL_URRE 0x0008 /* Unsupported Request Reporting En. */
|
|
#define PCI_EXP_DEVCTL_RELAX_EN 0x0010 /* Enable relaxed ordering */
|
|
#define PCI_EXP_DEVCTL_PAYLOAD 0x00e0 /* Max_Payload_Size */
|
|
#define PCI_EXP_DEVCTL_EXT_TAG 0x0100 /* Extended Tag Field Enable */
|
|
#define PCI_EXP_DEVCTL_PHANTOM 0x0200 /* Phantom Functions Enable */
|
|
#define PCI_EXP_DEVCTL_AUX_PME 0x0400 /* Auxiliary Power PM Enable */
|
|
#define PCI_EXP_DEVCTL_NOSNOOP_EN 0x0800 /* Enable No Snoop */
|
|
#define PCI_EXP_DEVCTL_READRQ 0x7000 /* Max_Read_Request_Size */
|
|
#define PCI_EXP_DEVSTA 10 /* Device Status */
|
|
#define PCI_EXP_DEVSTA_CED 0x01 /* Correctable Error Detected */
|
|
#define PCI_EXP_DEVSTA_NFED 0x02 /* Non-Fatal Error Detected */
|
|
#define PCI_EXP_DEVSTA_FED 0x04 /* Fatal Error Detected */
|
|
#define PCI_EXP_DEVSTA_URD 0x08 /* Unsupported Request Detected */
|
|
#define PCI_EXP_DEVSTA_AUXPD 0x10 /* AUX Power Detected */
|
|
#define PCI_EXP_DEVSTA_TRPND 0x20 /* Transactions Pending */
|
|
#define PCI_EXP_LNKCAP 12 /* Link Capabilities */
|
|
#define PCI_EXP_LNKCTL 16 /* Link Control */
|
|
#define PCI_EXP_LNKSTA 18 /* Link Status */
|
|
#define PCI_EXP_SLTCAP 20 /* Slot Capabilities */
|
|
#define PCI_EXP_SLTCTL 24 /* Slot Control */
|
|
#define PCI_EXP_SLTSTA 26 /* Slot Status */
|
|
#define PCI_EXP_RTCTL 28 /* Root Control */
|
|
#define PCI_EXP_RTCTL_SECEE 0x01 /* System Error on Correctable Error */
|
|
#define PCI_EXP_RTCTL_SENFEE 0x02 /* System Error on Non-Fatal Error */
|
|
#define PCI_EXP_RTCTL_SEFEE 0x04 /* System Error on Fatal Error */
|
|
#define PCI_EXP_RTCTL_PMEIE 0x08 /* PME Interrupt Enable */
|
|
#define PCI_EXP_RTCTL_CRSSVE 0x10 /* CRS Software Visibility Enable */
|
|
#define PCI_EXP_RTCAP 30 /* Root Capabilities */
|
|
#define PCI_EXP_RTSTA 32 /* Root Status */
|
|
|
|
/* Extended Capabilities (PCI-X 2.0 and Express) */
|
|
#define PCI_EXT_CAP_ID(header) (header & 0x0000ffff)
|
|
#define PCI_EXT_CAP_VER(header) ((header >> 16) & 0xf)
|
|
#define PCI_EXT_CAP_NEXT(header) ((header >> 20) & 0xffc)
|
|
|
|
#define PCI_EXT_CAP_ID_ERR 1
|
|
#define PCI_EXT_CAP_ID_VC 2
|
|
#define PCI_EXT_CAP_ID_DSN 3
|
|
#define PCI_EXT_CAP_ID_PWR 4
|
|
|
|
/* Advanced Error Reporting */
|
|
#define PCI_ERR_UNCOR_STATUS 4 /* Uncorrectable Error Status */
|
|
#define PCI_ERR_UNC_TRAIN 0x00000001 /* Training */
|
|
#define PCI_ERR_UNC_DLP 0x00000010 /* Data Link Protocol */
|
|
#define PCI_ERR_UNC_POISON_TLP 0x00001000 /* Poisoned TLP */
|
|
#define PCI_ERR_UNC_FCP 0x00002000 /* Flow Control Protocol */
|
|
#define PCI_ERR_UNC_COMP_TIME 0x00004000 /* Completion Timeout */
|
|
#define PCI_ERR_UNC_COMP_ABORT 0x00008000 /* Completer Abort */
|
|
#define PCI_ERR_UNC_UNX_COMP 0x00010000 /* Unexpected Completion */
|
|
#define PCI_ERR_UNC_RX_OVER 0x00020000 /* Receiver Overflow */
|
|
#define PCI_ERR_UNC_MALF_TLP 0x00040000 /* Malformed TLP */
|
|
#define PCI_ERR_UNC_ECRC 0x00080000 /* ECRC Error Status */
|
|
#define PCI_ERR_UNC_UNSUP 0x00100000 /* Unsupported Request */
|
|
#define PCI_ERR_UNCOR_MASK 8 /* Uncorrectable Error Mask */
|
|
/* Same bits as above */
|
|
#define PCI_ERR_UNCOR_SEVER 12 /* Uncorrectable Error Severity */
|
|
/* Same bits as above */
|
|
#define PCI_ERR_COR_STATUS 16 /* Correctable Error Status */
|
|
#define PCI_ERR_COR_RCVR 0x00000001 /* Receiver Error Status */
|
|
#define PCI_ERR_COR_BAD_TLP 0x00000040 /* Bad TLP Status */
|
|
#define PCI_ERR_COR_BAD_DLLP 0x00000080 /* Bad DLLP Status */
|
|
#define PCI_ERR_COR_REP_ROLL 0x00000100 /* REPLAY_NUM Rollover */
|
|
#define PCI_ERR_COR_REP_TIMER 0x00001000 /* Replay Timer Timeout */
|
|
#define PCI_ERR_COR_MASK 20 /* Correctable Error Mask */
|
|
/* Same bits as above */
|
|
#define PCI_ERR_CAP 24 /* Advanced Error Capabilities */
|
|
#define PCI_ERR_CAP_FEP(x) ((x) & 31) /* First Error Pointer */
|
|
#define PCI_ERR_CAP_ECRC_GENC 0x00000020 /* ECRC Generation Capable */
|
|
#define PCI_ERR_CAP_ECRC_GENE 0x00000040 /* ECRC Generation Enable */
|
|
#define PCI_ERR_CAP_ECRC_CHKC 0x00000080 /* ECRC Check Capable */
|
|
#define PCI_ERR_CAP_ECRC_CHKE 0x00000100 /* ECRC Check Enable */
|
|
#define PCI_ERR_HEADER_LOG 28 /* Header Log Register (16 bytes) */
|
|
#define PCI_ERR_ROOT_COMMAND 44 /* Root Error Command */
|
|
#define PCI_ERR_ROOT_STATUS 48
|
|
#define PCI_ERR_ROOT_COR_SRC 52
|
|
#define PCI_ERR_ROOT_SRC 54
|
|
|
|
/* Virtual Channel */
|
|
#define PCI_VC_PORT_REG1 4
|
|
#define PCI_VC_PORT_REG2 8
|
|
#define PCI_VC_PORT_CTRL 12
|
|
#define PCI_VC_PORT_STATUS 14
|
|
#define PCI_VC_RES_CAP 16
|
|
#define PCI_VC_RES_CTRL 20
|
|
#define PCI_VC_RES_STATUS 26
|
|
|
|
/* Power Budgeting */
|
|
#define PCI_PWR_DSR 4 /* Data Select Register */
|
|
#define PCI_PWR_DATA 8 /* Data Register */
|
|
#define PCI_PWR_DATA_BASE(x) ((x) & 0xff) /* Base Power */
|
|
#define PCI_PWR_DATA_SCALE(x) (((x) >> 8) & 3) /* Data Scale */
|
|
#define PCI_PWR_DATA_PM_SUB(x) (((x) >> 10) & 7) /* PM Sub State */
|
|
#define PCI_PWR_DATA_PM_STATE(x) (((x) >> 13) & 3) /* PM State */
|
|
#define PCI_PWR_DATA_TYPE(x) (((x) >> 15) & 7) /* Type */
|
|
#define PCI_PWR_DATA_RAIL(x) (((x) >> 18) & 7) /* Power Rail */
|
|
#define PCI_PWR_CAP 12 /* Capability */
|
|
#define PCI_PWR_CAP_BUDGET(x) ((x) & 1) /* Included in system budget */
|
|
|
|
/* Include the ID list */
|
|
|
|
#include <linux/pci_ids.h>
|
|
|
|
/*
|
|
* The PCI interface treats multi-function devices as independent
|
|
* devices. The slot/function address of each device is encoded
|
|
* in a single byte as follows:
|
|
*
|
|
* 7:3 = slot
|
|
* 2:0 = function
|
|
*/
|
|
#define PCI_DEVFN(slot,func) ((((slot) & 0x1f) << 3) | ((func) & 0x07))
|
|
#define PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f)
|
|
#define PCI_FUNC(devfn) ((devfn) & 0x07)
|
|
|
|
/* Ioctls for /proc/bus/pci/X/Y nodes. */
|
|
#define PCIIOC_BASE ('P' << 24 | 'C' << 16 | 'I' << 8)
|
|
#define PCIIOC_CONTROLLER (PCIIOC_BASE | 0x00) /* Get controller for PCI device. */
|
|
#define PCIIOC_MMAP_IS_IO (PCIIOC_BASE | 0x01) /* Set mmap state to I/O space. */
|
|
#define PCIIOC_MMAP_IS_MEM (PCIIOC_BASE | 0x02) /* Set mmap state to MEM space. */
|
|
#define PCIIOC_WRITE_COMBINE (PCIIOC_BASE | 0x03) /* Enable/disable write-combining. */
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/config.h>
|
|
#include <linux/ioport.h>
|
|
#include <linux/list.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/device.h>
|
|
|
|
/* File state for mmap()s on /proc/bus/pci/X/Y */
|
|
enum pci_mmap_state {
|
|
pci_mmap_io,
|
|
pci_mmap_mem
|
|
};
|
|
|
|
/* This defines the direction arg to the DMA mapping routines. */
|
|
#define PCI_DMA_BIDIRECTIONAL 0
|
|
#define PCI_DMA_TODEVICE 1
|
|
#define PCI_DMA_FROMDEVICE 2
|
|
#define PCI_DMA_NONE 3
|
|
|
|
#define DEVICE_COUNT_COMPATIBLE 4
|
|
#define DEVICE_COUNT_RESOURCE 12
|
|
|
|
typedef int __bitwise pci_power_t;
|
|
|
|
#define PCI_D0 ((pci_power_t __force) 0)
|
|
#define PCI_D1 ((pci_power_t __force) 1)
|
|
#define PCI_D2 ((pci_power_t __force) 2)
|
|
#define PCI_D3hot ((pci_power_t __force) 3)
|
|
#define PCI_D3cold ((pci_power_t __force) 4)
|
|
|
|
/*
|
|
* The pci_dev structure is used to describe PCI devices.
|
|
*/
|
|
struct pci_dev {
|
|
struct list_head global_list; /* node in list of all PCI devices */
|
|
struct list_head bus_list; /* node in per-bus list */
|
|
struct pci_bus *bus; /* bus this device is on */
|
|
struct pci_bus *subordinate; /* bus this device bridges to */
|
|
|
|
void *sysdata; /* hook for sys-specific extension */
|
|
struct proc_dir_entry *procent; /* device entry in /proc/bus/pci */
|
|
|
|
unsigned int devfn; /* encoded device & function index */
|
|
unsigned short vendor;
|
|
unsigned short device;
|
|
unsigned short subsystem_vendor;
|
|
unsigned short subsystem_device;
|
|
unsigned int class; /* 3 bytes: (base,sub,prog-if) */
|
|
u8 hdr_type; /* PCI header type (`multi' flag masked out) */
|
|
u8 rom_base_reg; /* which config register controls the ROM */
|
|
|
|
struct pci_driver *driver; /* which driver has allocated this device */
|
|
u64 dma_mask; /* Mask of the bits of bus address this
|
|
device implements. Normally this is
|
|
0xffffffff. You only need to change
|
|
this if your device has broken DMA
|
|
or supports 64-bit transfers. */
|
|
|
|
pci_power_t current_state; /* Current operating state. In ACPI-speak,
|
|
this is D0-D3, D0 being fully functional,
|
|
and D3 being off. */
|
|
|
|
struct device dev; /* Generic device interface */
|
|
|
|
/* device is compatible with these IDs */
|
|
unsigned short vendor_compatible[DEVICE_COUNT_COMPATIBLE];
|
|
unsigned short device_compatible[DEVICE_COUNT_COMPATIBLE];
|
|
|
|
int cfg_size; /* Size of configuration space */
|
|
|
|
/*
|
|
* Instead of touching interrupt line and base address registers
|
|
* directly, use the values stored here. They might be different!
|
|
*/
|
|
unsigned int irq;
|
|
struct resource resource[DEVICE_COUNT_RESOURCE]; /* I/O and memory regions + expansion ROMs */
|
|
|
|
/* These fields are used by common fixups */
|
|
unsigned int transparent:1; /* Transparent PCI bridge */
|
|
unsigned int multifunction:1;/* Part of multi-function device */
|
|
/* keep track of device state */
|
|
unsigned int is_enabled:1; /* pci_enable_device has been called */
|
|
unsigned int is_busmaster:1; /* device is busmaster */
|
|
|
|
u32 saved_config_space[16]; /* config space saved at suspend time */
|
|
struct bin_attribute *rom_attr; /* attribute descriptor for sysfs ROM entry */
|
|
int rom_attr_enabled; /* has display of the rom attribute been enabled? */
|
|
struct bin_attribute *res_attr[DEVICE_COUNT_RESOURCE]; /* sysfs file for resources */
|
|
#ifdef CONFIG_PCI_NAMES
|
|
#define PCI_NAME_SIZE 255
|
|
#define PCI_NAME_HALF __stringify(43) /* less than half to handle slop */
|
|
char pretty_name[PCI_NAME_SIZE]; /* pretty name for users to see */
|
|
#endif
|
|
};
|
|
|
|
#define pci_dev_g(n) list_entry(n, struct pci_dev, global_list)
|
|
#define pci_dev_b(n) list_entry(n, struct pci_dev, bus_list)
|
|
#define to_pci_dev(n) container_of(n, struct pci_dev, dev)
|
|
#define for_each_pci_dev(d) while ((d = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, d)) != NULL)
|
|
|
|
/*
|
|
* For PCI devices, the region numbers are assigned this way:
|
|
*
|
|
* 0-5 standard PCI regions
|
|
* 6 expansion ROM
|
|
* 7-10 bridges: address space assigned to buses behind the bridge
|
|
*/
|
|
|
|
#define PCI_ROM_RESOURCE 6
|
|
#define PCI_BRIDGE_RESOURCES 7
|
|
#define PCI_NUM_RESOURCES 11
|
|
|
|
#ifndef PCI_BUS_NUM_RESOURCES
|
|
#define PCI_BUS_NUM_RESOURCES 4
|
|
#endif
|
|
|
|
#define PCI_REGION_FLAG_MASK 0x0fU /* These bits of resource flags tell us the PCI region flags */
|
|
|
|
struct pci_bus {
|
|
struct list_head node; /* node in list of buses */
|
|
struct pci_bus *parent; /* parent bus this bridge is on */
|
|
struct list_head children; /* list of child buses */
|
|
struct list_head devices; /* list of devices on this bus */
|
|
struct pci_dev *self; /* bridge device as seen by parent */
|
|
struct resource *resource[PCI_BUS_NUM_RESOURCES];
|
|
/* address space routed to this bus */
|
|
|
|
struct pci_ops *ops; /* configuration access functions */
|
|
void *sysdata; /* hook for sys-specific extension */
|
|
struct proc_dir_entry *procdir; /* directory entry in /proc/bus/pci */
|
|
|
|
unsigned char number; /* bus number */
|
|
unsigned char primary; /* number of primary bridge */
|
|
unsigned char secondary; /* number of secondary bridge */
|
|
unsigned char subordinate; /* max number of subordinate buses */
|
|
|
|
char name[48];
|
|
|
|
unsigned short bridge_ctl; /* manage NO_ISA/FBB/et al behaviors */
|
|
unsigned short pad2;
|
|
struct device *bridge;
|
|
struct class_device class_dev;
|
|
struct bin_attribute *legacy_io; /* legacy I/O for this bus */
|
|
struct bin_attribute *legacy_mem; /* legacy mem */
|
|
};
|
|
|
|
#define pci_bus_b(n) list_entry(n, struct pci_bus, node)
|
|
#define to_pci_bus(n) container_of(n, struct pci_bus, class_dev)
|
|
|
|
/*
|
|
* Error values that may be returned by PCI functions.
|
|
*/
|
|
#define PCIBIOS_SUCCESSFUL 0x00
|
|
#define PCIBIOS_FUNC_NOT_SUPPORTED 0x81
|
|
#define PCIBIOS_BAD_VENDOR_ID 0x83
|
|
#define PCIBIOS_DEVICE_NOT_FOUND 0x86
|
|
#define PCIBIOS_BAD_REGISTER_NUMBER 0x87
|
|
#define PCIBIOS_SET_FAILED 0x88
|
|
#define PCIBIOS_BUFFER_TOO_SMALL 0x89
|
|
|
|
/* Low-level architecture-dependent routines */
|
|
|
|
struct pci_ops {
|
|
int (*read)(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *val);
|
|
int (*write)(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 val);
|
|
};
|
|
|
|
struct pci_raw_ops {
|
|
int (*read)(unsigned int domain, unsigned int bus, unsigned int devfn,
|
|
int reg, int len, u32 *val);
|
|
int (*write)(unsigned int domain, unsigned int bus, unsigned int devfn,
|
|
int reg, int len, u32 val);
|
|
};
|
|
|
|
extern struct pci_raw_ops *raw_pci_ops;
|
|
|
|
struct pci_bus_region {
|
|
unsigned long start;
|
|
unsigned long end;
|
|
};
|
|
|
|
struct pci_dynids {
|
|
spinlock_t lock; /* protects list, index */
|
|
struct list_head list; /* for IDs added at runtime */
|
|
unsigned int use_driver_data:1; /* pci_driver->driver_data is used */
|
|
};
|
|
|
|
struct module;
|
|
struct pci_driver {
|
|
struct list_head node;
|
|
char *name;
|
|
struct module *owner;
|
|
const struct pci_device_id *id_table; /* must be non-NULL for probe to be called */
|
|
int (*probe) (struct pci_dev *dev, const struct pci_device_id *id); /* New device inserted */
|
|
void (*remove) (struct pci_dev *dev); /* Device removed (NULL if not a hot-plug capable driver) */
|
|
int (*suspend) (struct pci_dev *dev, pm_message_t state); /* Device suspended */
|
|
int (*resume) (struct pci_dev *dev); /* Device woken up */
|
|
int (*enable_wake) (struct pci_dev *dev, u32 state, int enable); /* Enable wake event */
|
|
|
|
struct device_driver driver;
|
|
struct pci_dynids dynids;
|
|
};
|
|
|
|
#define to_pci_driver(drv) container_of(drv,struct pci_driver, driver)
|
|
|
|
/**
|
|
* PCI_DEVICE - macro used to describe a specific pci device
|
|
* @vend: the 16 bit PCI Vendor ID
|
|
* @dev: the 16 bit PCI Device ID
|
|
*
|
|
* This macro is used to create a struct pci_device_id that matches a
|
|
* specific device. The subvendor and subdevice fields will be set to
|
|
* PCI_ANY_ID.
|
|
*/
|
|
#define PCI_DEVICE(vend,dev) \
|
|
.vendor = (vend), .device = (dev), \
|
|
.subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID
|
|
|
|
/**
|
|
* PCI_DEVICE_CLASS - macro used to describe a specific pci device class
|
|
* @dev_class: the class, subclass, prog-if triple for this device
|
|
* @dev_class_mask: the class mask for this device
|
|
*
|
|
* This macro is used to create a struct pci_device_id that matches a
|
|
* specific PCI class. The vendor, device, subvendor, and subdevice
|
|
* fields will be set to PCI_ANY_ID.
|
|
*/
|
|
#define PCI_DEVICE_CLASS(dev_class,dev_class_mask) \
|
|
.class = (dev_class), .class_mask = (dev_class_mask), \
|
|
.vendor = PCI_ANY_ID, .device = PCI_ANY_ID, \
|
|
.subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID
|
|
|
|
/*
|
|
* pci_module_init is obsolete, this stays here till we fix up all usages of it
|
|
* in the tree.
|
|
*/
|
|
#define pci_module_init pci_register_driver
|
|
|
|
/* these external functions are only available when PCI support is enabled */
|
|
#ifdef CONFIG_PCI
|
|
|
|
extern struct bus_type pci_bus_type;
|
|
|
|
/* Do NOT directly access these two variables, unless you are arch specific pci
|
|
* code, or pci core code. */
|
|
extern struct list_head pci_root_buses; /* list of all known PCI buses */
|
|
extern struct list_head pci_devices; /* list of all devices */
|
|
|
|
void pcibios_fixup_bus(struct pci_bus *);
|
|
int pcibios_enable_device(struct pci_dev *, int mask);
|
|
char *pcibios_setup (char *str);
|
|
|
|
/* Used only when drivers/pci/setup.c is used */
|
|
void pcibios_align_resource(void *, struct resource *,
|
|
unsigned long, unsigned long);
|
|
void pcibios_update_irq(struct pci_dev *, int irq);
|
|
|
|
/* Generic PCI functions used internally */
|
|
|
|
extern struct pci_bus *pci_find_bus(int domain, int busnr);
|
|
struct pci_bus *pci_scan_bus_parented(struct device *parent, int bus, struct pci_ops *ops, void *sysdata);
|
|
static inline struct pci_bus *pci_scan_bus(int bus, struct pci_ops *ops, void *sysdata)
|
|
{
|
|
return pci_scan_bus_parented(NULL, bus, ops, sysdata);
|
|
}
|
|
int pci_scan_slot(struct pci_bus *bus, int devfn);
|
|
struct pci_dev * pci_scan_single_device(struct pci_bus *bus, int devfn);
|
|
unsigned int pci_scan_child_bus(struct pci_bus *bus);
|
|
void pci_bus_add_device(struct pci_dev *dev);
|
|
void pci_bus_add_devices(struct pci_bus *bus);
|
|
void pci_name_device(struct pci_dev *dev);
|
|
char *pci_class_name(u32 class);
|
|
void pci_read_bridge_bases(struct pci_bus *child);
|
|
struct resource *pci_find_parent_resource(const struct pci_dev *dev, struct resource *res);
|
|
int pci_get_interrupt_pin(struct pci_dev *dev, struct pci_dev **bridge);
|
|
extern struct pci_dev *pci_dev_get(struct pci_dev *dev);
|
|
extern void pci_dev_put(struct pci_dev *dev);
|
|
extern void pci_remove_bus(struct pci_bus *b);
|
|
extern void pci_remove_bus_device(struct pci_dev *dev);
|
|
|
|
/* Generic PCI functions exported to card drivers */
|
|
|
|
struct pci_dev *pci_find_device (unsigned int vendor, unsigned int device, const struct pci_dev *from);
|
|
struct pci_dev *pci_find_device_reverse (unsigned int vendor, unsigned int device, const struct pci_dev *from);
|
|
struct pci_dev *pci_find_slot (unsigned int bus, unsigned int devfn);
|
|
int pci_find_capability (struct pci_dev *dev, int cap);
|
|
int pci_find_ext_capability (struct pci_dev *dev, int cap);
|
|
struct pci_bus * pci_find_next_bus(const struct pci_bus *from);
|
|
|
|
struct pci_dev *pci_get_device (unsigned int vendor, unsigned int device, struct pci_dev *from);
|
|
struct pci_dev *pci_get_subsys (unsigned int vendor, unsigned int device,
|
|
unsigned int ss_vendor, unsigned int ss_device,
|
|
struct pci_dev *from);
|
|
struct pci_dev *pci_get_slot (struct pci_bus *bus, unsigned int devfn);
|
|
struct pci_dev *pci_get_class (unsigned int class, struct pci_dev *from);
|
|
int pci_dev_present(const struct pci_device_id *ids);
|
|
|
|
int pci_bus_read_config_byte (struct pci_bus *bus, unsigned int devfn, int where, u8 *val);
|
|
int pci_bus_read_config_word (struct pci_bus *bus, unsigned int devfn, int where, u16 *val);
|
|
int pci_bus_read_config_dword (struct pci_bus *bus, unsigned int devfn, int where, u32 *val);
|
|
int pci_bus_write_config_byte (struct pci_bus *bus, unsigned int devfn, int where, u8 val);
|
|
int pci_bus_write_config_word (struct pci_bus *bus, unsigned int devfn, int where, u16 val);
|
|
int pci_bus_write_config_dword (struct pci_bus *bus, unsigned int devfn, int where, u32 val);
|
|
|
|
static inline int pci_read_config_byte(struct pci_dev *dev, int where, u8 *val)
|
|
{
|
|
return pci_bus_read_config_byte (dev->bus, dev->devfn, where, val);
|
|
}
|
|
static inline int pci_read_config_word(struct pci_dev *dev, int where, u16 *val)
|
|
{
|
|
return pci_bus_read_config_word (dev->bus, dev->devfn, where, val);
|
|
}
|
|
static inline int pci_read_config_dword(struct pci_dev *dev, int where, u32 *val)
|
|
{
|
|
return pci_bus_read_config_dword (dev->bus, dev->devfn, where, val);
|
|
}
|
|
static inline int pci_write_config_byte(struct pci_dev *dev, int where, u8 val)
|
|
{
|
|
return pci_bus_write_config_byte (dev->bus, dev->devfn, where, val);
|
|
}
|
|
static inline int pci_write_config_word(struct pci_dev *dev, int where, u16 val)
|
|
{
|
|
return pci_bus_write_config_word (dev->bus, dev->devfn, where, val);
|
|
}
|
|
static inline int pci_write_config_dword(struct pci_dev *dev, int where, u32 val)
|
|
{
|
|
return pci_bus_write_config_dword (dev->bus, dev->devfn, where, val);
|
|
}
|
|
|
|
int pci_enable_device(struct pci_dev *dev);
|
|
int pci_enable_device_bars(struct pci_dev *dev, int mask);
|
|
void pci_disable_device(struct pci_dev *dev);
|
|
void pci_set_master(struct pci_dev *dev);
|
|
#define HAVE_PCI_SET_MWI
|
|
int pci_set_mwi(struct pci_dev *dev);
|
|
void pci_clear_mwi(struct pci_dev *dev);
|
|
int pci_set_dma_mask(struct pci_dev *dev, u64 mask);
|
|
int pci_dac_set_dma_mask(struct pci_dev *dev, u64 mask);
|
|
int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask);
|
|
int pci_assign_resource(struct pci_dev *dev, int i);
|
|
|
|
/* ROM control related routines */
|
|
void __iomem *pci_map_rom(struct pci_dev *pdev, size_t *size);
|
|
void __iomem *pci_map_rom_copy(struct pci_dev *pdev, size_t *size);
|
|
void pci_unmap_rom(struct pci_dev *pdev, void __iomem *rom);
|
|
void pci_remove_rom(struct pci_dev *pdev);
|
|
|
|
/* Power management related routines */
|
|
int pci_save_state(struct pci_dev *dev);
|
|
int pci_restore_state(struct pci_dev *dev);
|
|
int pci_set_power_state(struct pci_dev *dev, pci_power_t state);
|
|
pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state);
|
|
int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable);
|
|
|
|
/* Helper functions for low-level code (drivers/pci/setup-[bus,res].c) */
|
|
void pci_bus_assign_resources(struct pci_bus *bus);
|
|
void pci_bus_size_bridges(struct pci_bus *bus);
|
|
int pci_claim_resource(struct pci_dev *, int);
|
|
void pci_assign_unassigned_resources(void);
|
|
void pdev_enable_device(struct pci_dev *);
|
|
void pdev_sort_resources(struct pci_dev *, struct resource_list *);
|
|
void pci_fixup_irqs(u8 (*)(struct pci_dev *, u8 *),
|
|
int (*)(struct pci_dev *, u8, u8));
|
|
#define HAVE_PCI_REQ_REGIONS 2
|
|
int pci_request_regions(struct pci_dev *, char *);
|
|
void pci_release_regions(struct pci_dev *);
|
|
int pci_request_region(struct pci_dev *, int, char *);
|
|
void pci_release_region(struct pci_dev *, int);
|
|
|
|
/* drivers/pci/bus.c */
|
|
int pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res,
|
|
unsigned long size, unsigned long align,
|
|
unsigned long min, unsigned int type_mask,
|
|
void (*alignf)(void *, struct resource *,
|
|
unsigned long, unsigned long),
|
|
void *alignf_data);
|
|
void pci_enable_bridges(struct pci_bus *bus);
|
|
|
|
/* New-style probing supporting hot-pluggable devices */
|
|
int pci_register_driver(struct pci_driver *);
|
|
void pci_unregister_driver(struct pci_driver *);
|
|
void pci_remove_behind_bridge(struct pci_dev *);
|
|
struct pci_driver *pci_dev_driver(const struct pci_dev *);
|
|
const struct pci_device_id *pci_match_device(const struct pci_device_id *ids, const struct pci_dev *dev);
|
|
int pci_scan_bridge(struct pci_bus *bus, struct pci_dev * dev, int max, int pass);
|
|
|
|
/* kmem_cache style wrapper around pci_alloc_consistent() */
|
|
|
|
#include <linux/dmapool.h>
|
|
|
|
#define pci_pool dma_pool
|
|
#define pci_pool_create(name, pdev, size, align, allocation) \
|
|
dma_pool_create(name, &pdev->dev, size, align, allocation)
|
|
#define pci_pool_destroy(pool) dma_pool_destroy(pool)
|
|
#define pci_pool_alloc(pool, flags, handle) dma_pool_alloc(pool, flags, handle)
|
|
#define pci_pool_free(pool, vaddr, addr) dma_pool_free(pool, vaddr, addr)
|
|
|
|
#if defined(CONFIG_ISA) || defined(CONFIG_EISA)
|
|
extern struct pci_dev *isa_bridge;
|
|
#endif
|
|
|
|
struct msix_entry {
|
|
u16 vector; /* kernel uses to write allocated vector */
|
|
u16 entry; /* driver uses to specify entry, OS writes */
|
|
};
|
|
|
|
#ifndef CONFIG_PCI_MSI
|
|
static inline void pci_scan_msi_device(struct pci_dev *dev) {}
|
|
static inline int pci_enable_msi(struct pci_dev *dev) {return -1;}
|
|
static inline void pci_disable_msi(struct pci_dev *dev) {}
|
|
static inline int pci_enable_msix(struct pci_dev* dev,
|
|
struct msix_entry *entries, int nvec) {return -1;}
|
|
static inline void pci_disable_msix(struct pci_dev *dev) {}
|
|
static inline void msi_remove_pci_irq_vectors(struct pci_dev *dev) {}
|
|
#else
|
|
extern void pci_scan_msi_device(struct pci_dev *dev);
|
|
extern int pci_enable_msi(struct pci_dev *dev);
|
|
extern void pci_disable_msi(struct pci_dev *dev);
|
|
extern int pci_enable_msix(struct pci_dev* dev,
|
|
struct msix_entry *entries, int nvec);
|
|
extern void pci_disable_msix(struct pci_dev *dev);
|
|
extern void msi_remove_pci_irq_vectors(struct pci_dev *dev);
|
|
#endif
|
|
|
|
#endif /* CONFIG_PCI */
|
|
|
|
/* Include architecture-dependent settings and functions */
|
|
|
|
#include <asm/pci.h>
|
|
|
|
/*
|
|
* If the system does not have PCI, clearly these return errors. Define
|
|
* these as simple inline functions to avoid hair in drivers.
|
|
*/
|
|
|
|
#ifndef CONFIG_PCI
|
|
#define _PCI_NOP(o,s,t) \
|
|
static inline int pci_##o##_config_##s (struct pci_dev *dev, int where, t val) \
|
|
{ return PCIBIOS_FUNC_NOT_SUPPORTED; }
|
|
#define _PCI_NOP_ALL(o,x) _PCI_NOP(o,byte,u8 x) \
|
|
_PCI_NOP(o,word,u16 x) \
|
|
_PCI_NOP(o,dword,u32 x)
|
|
_PCI_NOP_ALL(read, *)
|
|
_PCI_NOP_ALL(write,)
|
|
|
|
static inline struct pci_dev *pci_find_device(unsigned int vendor, unsigned int device, const struct pci_dev *from)
|
|
{ return NULL; }
|
|
|
|
static inline struct pci_dev *pci_find_slot(unsigned int bus, unsigned int devfn)
|
|
{ return NULL; }
|
|
|
|
static inline struct pci_dev *pci_get_device (unsigned int vendor, unsigned int device, struct pci_dev *from)
|
|
{ return NULL; }
|
|
|
|
static inline struct pci_dev *pci_get_subsys (unsigned int vendor, unsigned int device,
|
|
unsigned int ss_vendor, unsigned int ss_device, struct pci_dev *from)
|
|
{ return NULL; }
|
|
|
|
static inline struct pci_dev *pci_get_class(unsigned int class, struct pci_dev *from)
|
|
{ return NULL; }
|
|
|
|
#define pci_dev_present(ids) (0)
|
|
#define pci_dev_put(dev) do { } while (0)
|
|
|
|
static inline void pci_set_master(struct pci_dev *dev) { }
|
|
static inline int pci_enable_device(struct pci_dev *dev) { return -EIO; }
|
|
static inline void pci_disable_device(struct pci_dev *dev) { }
|
|
static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask) { return -EIO; }
|
|
static inline int pci_dac_set_dma_mask(struct pci_dev *dev, u64 mask) { return -EIO; }
|
|
static inline int pci_assign_resource(struct pci_dev *dev, int i) { return -EBUSY;}
|
|
static inline int pci_register_driver(struct pci_driver *drv) { return 0;}
|
|
static inline void pci_unregister_driver(struct pci_driver *drv) { }
|
|
static inline int pci_find_capability (struct pci_dev *dev, int cap) {return 0; }
|
|
static inline int pci_find_ext_capability (struct pci_dev *dev, int cap) {return 0; }
|
|
static inline const struct pci_device_id *pci_match_device(const struct pci_device_id *ids, const struct pci_dev *dev) { return NULL; }
|
|
|
|
/* Power management related routines */
|
|
static inline int pci_save_state(struct pci_dev *dev) { return 0; }
|
|
static inline int pci_restore_state(struct pci_dev *dev) { return 0; }
|
|
static inline int pci_set_power_state(struct pci_dev *dev, pci_power_t state) { return 0; }
|
|
static inline pci_power_t pci_choose_state(struct pci_dev *dev, u32 state) { return PCI_D0; }
|
|
static inline int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable) { return 0; }
|
|
|
|
#define isa_bridge ((struct pci_dev *)NULL)
|
|
|
|
#else
|
|
|
|
/*
|
|
* PCI domain support. Sometimes called PCI segment (eg by ACPI),
|
|
* a PCI domain is defined to be a set of PCI busses which share
|
|
* configuration space.
|
|
*/
|
|
#ifndef CONFIG_PCI_DOMAINS
|
|
static inline int pci_domain_nr(struct pci_bus *bus) { return 0; }
|
|
static inline int pci_proc_domain(struct pci_bus *bus)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#endif /* !CONFIG_PCI */
|
|
|
|
/* these helpers provide future and backwards compatibility
|
|
* for accessing popular PCI BAR info */
|
|
#define pci_resource_start(dev,bar) ((dev)->resource[(bar)].start)
|
|
#define pci_resource_end(dev,bar) ((dev)->resource[(bar)].end)
|
|
#define pci_resource_flags(dev,bar) ((dev)->resource[(bar)].flags)
|
|
#define pci_resource_len(dev,bar) \
|
|
((pci_resource_start((dev),(bar)) == 0 && \
|
|
pci_resource_end((dev),(bar)) == \
|
|
pci_resource_start((dev),(bar))) ? 0 : \
|
|
\
|
|
(pci_resource_end((dev),(bar)) - \
|
|
pci_resource_start((dev),(bar)) + 1))
|
|
|
|
/* Similar to the helpers above, these manipulate per-pci_dev
|
|
* driver-specific data. They are really just a wrapper around
|
|
* the generic device structure functions of these calls.
|
|
*/
|
|
static inline void *pci_get_drvdata (struct pci_dev *pdev)
|
|
{
|
|
return dev_get_drvdata(&pdev->dev);
|
|
}
|
|
|
|
static inline void pci_set_drvdata (struct pci_dev *pdev, void *data)
|
|
{
|
|
dev_set_drvdata(&pdev->dev, data);
|
|
}
|
|
|
|
/* If you want to know what to call your pci_dev, ask this function.
|
|
* Again, it's a wrapper around the generic device.
|
|
*/
|
|
static inline char *pci_name(struct pci_dev *pdev)
|
|
{
|
|
return pdev->dev.bus_id;
|
|
}
|
|
|
|
/* Some archs want to see the pretty pci name, so use this macro */
|
|
#ifdef CONFIG_PCI_NAMES
|
|
#define pci_pretty_name(dev) ((dev)->pretty_name)
|
|
#else
|
|
#define pci_pretty_name(dev) ""
|
|
#endif
|
|
|
|
/*
|
|
* The world is not perfect and supplies us with broken PCI devices.
|
|
* For at least a part of these bugs we need a work-around, so both
|
|
* generic (drivers/pci/quirks.c) and per-architecture code can define
|
|
* fixup hooks to be called for particular buggy devices.
|
|
*/
|
|
|
|
struct pci_fixup {
|
|
u16 vendor, device; /* You can use PCI_ANY_ID here of course */
|
|
void (*hook)(struct pci_dev *dev);
|
|
};
|
|
|
|
enum pci_fixup_pass {
|
|
pci_fixup_early, /* Before probing BARs */
|
|
pci_fixup_header, /* After reading configuration header */
|
|
pci_fixup_final, /* Final phase of device fixups */
|
|
pci_fixup_enable, /* pci_enable_device() time */
|
|
};
|
|
|
|
/* Anonymous variables would be nice... */
|
|
#define DECLARE_PCI_FIXUP_SECTION(section, name, vendor, device, hook) \
|
|
static struct pci_fixup __pci_fixup_##name __attribute_used__ \
|
|
__attribute__((__section__(#section))) = { vendor, device, hook };
|
|
#define DECLARE_PCI_FIXUP_EARLY(vendor, device, hook) \
|
|
DECLARE_PCI_FIXUP_SECTION(.pci_fixup_early, \
|
|
vendor##device##hook, vendor, device, hook)
|
|
#define DECLARE_PCI_FIXUP_HEADER(vendor, device, hook) \
|
|
DECLARE_PCI_FIXUP_SECTION(.pci_fixup_header, \
|
|
vendor##device##hook, vendor, device, hook)
|
|
#define DECLARE_PCI_FIXUP_FINAL(vendor, device, hook) \
|
|
DECLARE_PCI_FIXUP_SECTION(.pci_fixup_final, \
|
|
vendor##device##hook, vendor, device, hook)
|
|
#define DECLARE_PCI_FIXUP_ENABLE(vendor, device, hook) \
|
|
DECLARE_PCI_FIXUP_SECTION(.pci_fixup_enable, \
|
|
vendor##device##hook, vendor, device, hook)
|
|
|
|
|
|
void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev);
|
|
|
|
extern int pci_pci_problems;
|
|
#define PCIPCI_FAIL 1
|
|
#define PCIPCI_TRITON 2
|
|
#define PCIPCI_NATOMA 4
|
|
#define PCIPCI_VIAETBF 8
|
|
#define PCIPCI_VSFX 16
|
|
#define PCIPCI_ALIMAGIK 32
|
|
|
|
#endif /* __KERNEL__ */
|
|
#endif /* LINUX_PCI_H */
|