Eric Lee / smarc-fsl-linux-kernel

10 Apr, 2009

1 commit

04 Oct, 2008

2 commits

06 Sep, 2008

1 commit

  • 464f04c9e   x86: fix ghost EDD devices in /sys again ... Browse Code »

    > This is regression but old enough. Apparently I had for whatever reasons
    > EDD turned off till recently. This is 2.6.27-rc5 just in case.
    >
    > In 2006 I fixed ghost devices due to buggy BIOS:
    >
    > http://marc.info/?l=linux-kernel&m=114087765422490&w=2
    >
    > Later edd.S has been rewritten in C, and apparently this patch has been
    > lost:
    >
    > {pts/1}% ls /sys/firmware/edd
    > int13_dev80/ int13_dev84/ int13_dev88/ int13_dev8c/
    > int13_dev81/ int13_dev85/ int13_dev89/ int13_dev8d/
    > int13_dev82/ int13_dev86/ int13_dev8a/ int13_dev8e/
    > int13_dev83/ int13_dev87/ int13_dev8b/ int13_dev8f/
    >
    > But I have just a single disk. This is the same system BTW.

    Some BIOSes do not always set CF on error before return from int13.
    The patch adds additional check for status being zero (AH == 0).

    This was fixed for edd.S in
    http://marc.info/?l=linux-kernel&m=114087765422490&w=2, but lost
    again when edd.S was rewritten in C.

    Signed-off-by: Andrey Borzenkov
    Signed-off-by: Ingo Molnar

    Andrey Borzenkov
     

19 Jul, 2008

1 commit

29 Apr, 2008

1 commit

  • 8c4dd6068   edd: add default mode CONFIG_EDD_OFF=n, override with edd={on,off} ... Browse Code »

    Add a kernel parameter option to 'edd' to enable/disable BIOS Enhanced Disk
    Drive Services. CONFIG_EDD_OFF disables EDD while still compiling EDD into
    the kernel. Default behavior can be forced using 'edd=on' or 'edd=off' as
    a kernel parameter.

    [akpm@linux-foundation.org: fix kernel-parameters.txt]
    Signed-off-by: Tim Gardner
    Signed-off-by: Matt Domsch
    Cc: "H. Peter Anvin"
    Cc: "Randy.Dunlap"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Tim Gardner
     

20 Apr, 2008

1 commit

30 Jan, 2008

3 commits

  • b71076360   x86 setup: add note to use edd=off on EDD probing hangs ... Browse Code »

    Tell the user to specify edd=off in the case of EDD probing hangs.
    Per LKML discussion.

    Signed-off-by: H. Peter Anvin
    Signed-off-by: Ingo Molnar
    Signed-off-by: Thomas Gleixner

    H. Peter Anvin
     
  • f7775016c   x86 setup: OK -> ok (no need to scream) ... Browse Code »

    Unnecessary capitals are shouting; no need for it here.
    Thus, change "OK" to "ok" and add a space.

    Signed-off-by: H. Peter Anvin
    Signed-off-by: Ingo Molnar
    Signed-off-by: Thomas Gleixner

    H. Peter Anvin
     
  • e479c8306   x86 setup: be more verbose when probing EDD ... Browse Code »

    On early boot, probing the Bios for EDD happens without any message.

    Enhanced Disk Drive Services (EDD) is a mechanism to match x86 BIOS device
    names (int13 device 80h) to Linux device names (e.g. /dev/sda, /dev/hda)

    There are buggy Bios out there having problems with EDD. This can be problems
    with the Bios itself or with addon cards, too.

    This patch is adds an informational message on early boot.

    CONFIG_EDD is not set with defconfig, but with allmodconfig (i.e. CONFIG_EDD=m)
    so the EDD probe may be active on early boot on many systems nowadays.

    I can tell, that the probe is active on SuSE distro and with that I have seen
    more than one system hanging endlessly with those "black screen with a blinking
    cursor in the the upper left" on installation, making it difficult for the end-
    user to find out, what`s the issue.
    For sure I have seen this on FujitsuSiemens PCs with i810 and with i815 chipset.

    This one also honours the "quiet" bootparam.

    Also see:
    http://marc.info/?l=linux-kernel&m=119781937207969&w=2
    http://marc.info/?l=linux-kernel&m=119783934032326&w=2
    http://marc.info/?l=linux-kernel&m=119783678529100&w=2

    Signed-off-by: Roland Kletzing
    Signed-off-by: H. Peter Anvin
    Signed-off-by: Ingo Molnar
    Signed-off-by: Thomas Gleixner

    devzero@web.de
     

11 Oct, 2007

1 commit

  • 96ae6ea0b   i386: move boot ... Browse Code »

    Signed-off-by: Thomas Gleixner
    Signed-off-by: Ingo Molnar
    Signed-off-by: Thomas Gleixner
    Signed-off-by: Ingo Molnar
    Signed-off-by: Thomas Gleixner
    Signed-off-by: Ingo Molnar

    Thomas Gleixner