137 lines
4.9 KiB
C
137 lines
4.9 KiB
C
/* $OpenBSD: pci_machdep.h,v 1.32 2025/01/23 11:24:34 kettenis Exp $ */
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/* $NetBSD: pci_machdep.h,v 1.1 2003/02/26 21:26:11 fvdl Exp $ */
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/*
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* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
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* Copyright (c) 1994 Charles M. Hannum. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Charles M. Hannum.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Machine-specific definitions for PCI autoconfiguration.
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*/
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/*
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* amd64-specific PCI structure and type definitions.
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* NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
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*/
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extern struct bus_dma_tag pci_bus_dma_tag;
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/*
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* Types provided to machine-independent PCI code
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*/
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typedef void *pci_chipset_tag_t;
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typedef u_int32_t pcitag_t;
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typedef struct {
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pcitag_t tag;
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int line, pin;
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} pci_intr_handle_t;
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#define pci_intr_line(pc,ih) ((ih.line) & 0xff)
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/*
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* amd64-specific PCI variables and functions.
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* NOT TO BE USED DIRECTLY BY MACHINE INDEPENDENT CODE.
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*/
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struct pci_attach_args;
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extern struct extent *pciio_ex;
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extern struct extent *pcimem_ex;
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extern struct extent *pcibus_ex;
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void pci_init_extents(void);
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/*
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* Functions provided to machine-independent PCI code.
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*/
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void pci_attach_hook(struct device *, struct device *,
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struct pcibus_attach_args *);
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int pci_bus_maxdevs(pci_chipset_tag_t, int);
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pcitag_t pci_make_tag(pci_chipset_tag_t, int, int, int);
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void pci_decompose_tag(pci_chipset_tag_t, pcitag_t,
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int *, int *, int *);
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int pci_conf_size(pci_chipset_tag_t, pcitag_t);
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pcireg_t pci_conf_read(pci_chipset_tag_t, pcitag_t, int);
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void pci_conf_write(pci_chipset_tag_t, pcitag_t, int,
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pcireg_t);
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int pci_intr_enable_msivec(struct pci_attach_args *, int);
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int pci_intr_map_msi(struct pci_attach_args *,
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pci_intr_handle_t *);
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int pci_intr_map_msivec(struct pci_attach_args *,
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int, pci_intr_handle_t *);
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int pci_intr_map_msix(struct pci_attach_args *,
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int, pci_intr_handle_t *);
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int pci_intr_map(struct pci_attach_args *, pci_intr_handle_t *);
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const char *pci_intr_string(pci_chipset_tag_t, pci_intr_handle_t);
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void *pci_intr_establish(pci_chipset_tag_t, pci_intr_handle_t,
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int, int (*)(void *), void *, const char *);
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void *pci_intr_establish_cpu(pci_chipset_tag_t, pci_intr_handle_t,
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int, struct cpu_info *,
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int (*)(void *), void *, const char *);
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void pci_intr_disestablish(pci_chipset_tag_t, void *);
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int pci_probe_device_hook(pci_chipset_tag_t,
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struct pci_attach_args *);
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void pci_dev_postattach(struct device *, struct pci_attach_args *);
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pcireg_t pci_min_powerstate(pci_chipset_tag_t, pcitag_t);
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void pci_set_powerstate_md(pci_chipset_tag_t, pcitag_t, int, int);
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void pci_mcfg_init(bus_space_tag_t, bus_addr_t, int, int, int);
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pci_chipset_tag_t pci_lookup_segment(int, int);
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#define __HAVE_PCI_MSIX
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int pci_msix_table_map(pci_chipset_tag_t, pcitag_t,
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bus_space_tag_t, bus_space_handle_t *);
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void pci_msix_table_unmap(pci_chipset_tag_t, pcitag_t,
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bus_space_tag_t, bus_space_handle_t);
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/*
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* ALL OF THE FOLLOWING ARE MACHINE-DEPENDENT, AND SHOULD NOT BE USED
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* BY PORTABLE CODE.
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*/
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/*
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* Section 6.2.4, `Miscellaneous Functions' of the PCI Specification,
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* says that 255 means `unknown' or `no connection' to the interrupt
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* controller on a PC.
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*/
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#define X86_PCI_INTERRUPT_LINE_NO_CONNECTION 0xff
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/*
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* PCI address space is shared with ISA, so avoid legacy ISA I/O
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* registers.
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*/
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#define PCI_IO_START 0x400
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#define PCI_IO_END 0xffff
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/*
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* Avoid the DOS Compatibility Memory area.
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*/
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#define PCI_MEM_START 0x100000
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