cvs commit: src/sys/amd64/include pci_cfgreg.h src/sys/amd64/pci pci_cfgreg.c src/sys/dev/acpica acpi.c src/sys/i386/include pci_cfgreg.h src/sys/i386/pci pci_cfgreg.c

[John Baldwin]

jhb         2008-08-22 02:14:23 UTC

  FreeBSD src repository

  Modified files:
    sys/amd64/include    pci_cfgreg.h 
    sys/amd64/pci        pci_cfgreg.c 
    sys/dev/acpica       acpi.c 
    sys/i386/include     pci_cfgreg.h 
    sys/i386/pci         pci_cfgreg.c 
  Log:
  SVN rev 181987 on 2008-08-22 02:14:23Z by jhb
  
  Extend the support for PCI-e memory mapped configuration space access:
  - 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
  
  Revision  Changes    Path
  1.15      +1 -0      src/sys/amd64/include/pci_cfgreg.h
  1.111     +137 -3    src/sys/amd64/pci/pci_cfgreg.c
  1.251     +41 -0     src/sys/dev/acpica/acpi.c
  1.15      +1 -0      src/sys/i386/include/pci_cfgreg.h
  1.130     +42 -36    src/sys/i386/pci/pci_cfgreg.c