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d320e05ca5
- Rename pciereg_cfgopen() to pcie_cfgregopen() and expose it to the rest of the kernel. It now also accepts parameters via function arguments rather than global variables. - Add a notion of minimum and maximum bus numbers and reject requests for an out of range bus. - Add more range checks on slot/func/reg/bytes parameters to the cfg reg read/write routines. Don't panic on any invalid parameters, just fail the request (writes do nothing, reads return -1). This matches the behavior of the other cfg mechanisms. - Port the memory mapped configuration space access to amd64. On amd64 we simply use the direct map (via pmap_mapdev()) for the memory mapped window. - During acpi_attach() just after loading the ACPI tables, check for a MCFG table. If it exists, call pciereg_cfgopen() on each subtable (memory mapped window). For now we only support windows for domain 0 that start with bus 0. This removes the need for more chipset-specific quirks in the MD code. - Remove the chipset-specific quirks for the Intel 5000P/V/Z chipsets since these machines should all have MCFG tables via ACPI. - Updated pci_cfgregopen() to DTRT if ACPI had invoked pcie_cfgregopen() earlier. MFC after: 2 weeks
44 lines
1.9 KiB
C
44 lines
1.9 KiB
C
/*-
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* Copyright (c) 1997, Stefan Esser <se@freebsd.org>
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* 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 unmodified, this list of conditions, and the following
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* 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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*
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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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* $FreeBSD$
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*
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*/
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#define CONF1_ADDR_PORT 0x0cf8
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#define CONF1_DATA_PORT 0x0cfc
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#define CONF1_ENABLE 0x80000000ul
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#define CONF1_ENABLE_CHK 0x80000000ul
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#define CONF1_ENABLE_MSK 0x7f000000ul
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#define CONF1_ENABLE_CHK1 0xff000001ul
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#define CONF1_ENABLE_MSK1 0x80000001ul
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#define CONF1_ENABLE_RES1 0x80000000ul
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int pcie_cfgregopen(uint64_t base, uint8_t minbus, uint8_t maxbus);
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int pci_cfgregopen(void);
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u_int32_t pci_cfgregread(int bus, int slot, int func, int reg, int bytes);
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void pci_cfgregwrite(int bus, int slot, int func, int reg, u_int32_t data, int bytes);
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