cvs commit: src/sys/i386/pci pci_bus.c

From

Warner Losh <imp@FreeBSD.org>

Date

6 Oct 2004 07:22:59

Subject

cvs commit: src/sys/i386/pci pci_bus.c

Message-ID

200410060722.i967MwsJ014694@repoman.freebsd.org

Replies

Stefan Farfeleder (cvs-src) , Stefan Farfeleder, John Baldwin, John Baldwin (cvs-src)

Referenced by

Stefan Farfeleder (cvs-src) , Stefan Farfeleder, M. Warner Losh (cvs-src) , M. Warner Losh, John Baldwin (cvs-src) , John Baldwin, M. Warner Losh (cvs-src) , M. Warner Losh, Nate Lawson (cvs-src) , Nate Lawson, John Baldwin (cvs-src) , John Baldwin, M. Warner Losh, M. Warner Losh (cvs-src) , Nate Lawson (cvs-src) , Nate Lawson

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imp         2004-10-06 07:22:58 UTC
 
  FreeBSD src repository
 
  Modified files:
    sys/i386/pci         pci_bus.c
  Log:
  For legacy PCI bridges, limit memory allocation to the top 32MB of
  RAM.  Many older, legacy bridges only allow allocation from this
  range.  This only appies to devices who don't have their memory
  assigned by the BIOS (since we allocate the ranges so assigned
  exactly), so should have minimal impact.
 
  Hoewver, for CardBus bridges (cbb), they rarely get the resources
  allocated by the BIOS, and this patch helps them greatly.  Typically
  the 'bad Vcc' messages are caused by this problem.
 
  Revision  Changes    Path
  1.113     +24 -4     src/sys/i386/pci/pci_bus.c