Eric Lee / smarc-fsl-linux-kernel

10 Jan, 2011

1 commit

  • 398834330   Blackfin: no-mpu: fix masking of small uncached dma region ... Browse Code »

    When using an uncached DMA region less than 1 MiB, we try to mask off
    the whole last 1 MiB for it. Unfortunately, this fails as we forgot
    to subtract one from the calculated mask, leading to the region still
    be marked as cacheable.

    Reported-by: Andrew Rook
    Signed-off-by: Sonic Zhang
    Signed-off-by: Mike Frysinger

    Sonic Zhang
     

09 Mar, 2010

1 commit

15 Dec, 2009

2 commits

07 Oct, 2009

1 commit

  • 96f1050d3   Blackfin: mass clean up of copyright/licensing info ... Browse Code »

    Bill Gatliff & David Brownell pointed out we were missing some
    copyrights, and licensing terms in some of the files in
    ./arch/blackfin, so this fixes things, and cleans them up.

    It also removes:
    - verbose GPL text(refer to the top level ./COPYING file)
    - file names (you are looking at the file)
    - bug url (it's in the ./MAINTAINERS file)
    - "or later" on GPL-2, when we did not have that right

    It also allows some Blackfin-specific assembly files to be under a BSD
    like license (for people to use them outside of Linux).

    Signed-off-by: Robin Getz
    Signed-off-by: Mike Frysinger

    Robin Getz
     

17 Sep, 2009

4 commits

  • ea426e6c6   Blackfin: unify cache init functions ... Browse Code »

    The CPLB implementations (mpu/nompu) had exact copies of the cacheinit
    code. Even the i/d cache functions are largely the same. So unify them
    both in the common kernel cache code.

    Signed-off-by: Mike Frysinger

    Mike Frysinger
     
  • 4663f6ef2   Blackfin: add ICPLB coverage for async banks ... Browse Code »

    When doing XIP, we need to execute out of the async banks, so we need
    ICPLBs to allow this.

    Signed-off-by: Bernd Schmidt
    Signed-off-by: Mike Frysinger

    Bernd Schmidt
     
  • b6dbde27d   Blackfin: use raw_smp_processor_id() in exception code ... Browse Code »

    When preempt debugging is enabled, smp_processor_id() may utilize the
    "current" structure. This may not be safe to access under all exceptions
    due to it being in dynamically allocated memory. So in exception code,
    make sure we use raw_smp_processor_id() instead to get at the real value
    directly.

    Signed-off-by: Yi Li
    Signed-off-by: Mike Frysinger

    Yi Li
     
  • eb7bd9c46   Blackfin: cleanup sync handling when enabling/disabling cplbs ... Browse Code »

    The handling of updating the [DI]MEM_CONTROL MMRs does not follow proper
    sync procedures as laid out in the Blackfin programming manual. So rather
    than audit/fix every call location, create helper functions that do the
    right things in order to safely update these MMRs. Then convert all call
    sites to use these new helper functions.

    While we're fixing the code, drop the workaround for anomaly 05000125 as
    that anomaly applies to old versions of silicon that we do not support.

    Signed-off-by: Yi Li
    Signed-off-by: Mike Frysinger

    Yi Li
     

16 Jul, 2009

1 commit

13 Jun, 2009

1 commit

  • 16aadcb68   Blackfin: only handle CPLB protection violations when MPU is enabled ... Browse Code »

    We don't need to handle CPLB protection violations unless we are running
    with the MPU on. Fix the entry code to call common trap_c, and remove the
    code which is never run. This allows the traps test suite to run on older
    boards with the MPU disabled.

    URL: http://blackfin.uclinux.org/gf/tracker/5129
    Signed-off-by: Robin Getz
    Signed-off-by: Mike Frysinger

    Robin Getz
     

12 Jun, 2009

1 commit

02 Mar, 2009

1 commit

04 Feb, 2009

1 commit

07 Jan, 2009

3 commits

  • dbdf20db5   Blackfin arch: Faster C implementation of no-MPU CPLB handler ... Browse Code »

    This is a mixture ofcMichael McTernan's patch and the existing cplb-mpu code.

    We ditch the old cplb-nompu implementation, which is a good example of
    why a good algorithm in a HLL is preferrable to a bad algorithm written in
    assembly. Rather than try to construct a table of all posible CPLBs and
    search it, we just create a (smaller) table of memory regions and
    their attributes. Some of the data structures are now unified for both
    the mpu and nompu cases. A lot of needless complexity in cplbinit.c is
    removed.

    Further optimizations:
    * compile cplbmgr.c with a lot of -ffixed-reg options, and omit saving
    these registers on the stack when entering a CPLB exception.
    * lose cli/nop/nop/sti sequences for some workarounds - these don't
    * make
    sense in an exception context

    Additional code unification should be possible after this.

    [Mike Frysinger :
    - convert CPP if statements to C if statements
    - remove redundant statements
    - use a do...while loop rather than a for loop to get slightly better
    optimization and to avoid gcc "may be used uninitialized" warnings ...
    we know that the [id]cplb_nr_bounds variables will never be 0, so this
    is OK
    - the no-mpu code was the last user of MAX_MEM_SIZE and with that rewritten,
    we can punt it
    - add some BUG_ON() checks to make sure we dont overflow the small
    cplb_bounds array
    - add i/d cplb entries for the bootrom because there is functions/data in
    there we want to access
    - we do not need a NULL trailing entry as any time we access the bounds
    arrays, we use the nr_bounds variable
    ]

    Signed-off-by: Michael McTernan
    Signed-off-by: Mike Frysinger
    Signed-off-by: Bernd Schmidt
    Signed-off-by: Bryan Wu

    Bernd Schmidt
     
  • dbc895f95   Blackfin arch: smp patch cleanup from LKML review ... Browse Code »

    1. Use inline get_l1_... functions instead of macro
    2. Fix compile issue about smp barrier functions

    Signed-off-by: Graf Yang
    Signed-off-by: Bryan Wu

    Graf Yang
     
  • 2eddbadae   Blackfin arch: tweak the BUG_ON() check to allow for equal values ... Browse Code »

    Tweak the BUG_ON() check to allow for equal values since the way pos is
    handled ... it is always indexed and post incremented

    Signed-off-by: Mike Frysinger
    Signed-off-by: Bryan Wu

    Mike Frysinger
     

18 Nov, 2008

7 commits

27 Oct, 2008

1 commit

16 Oct, 2008

1 commit

09 Oct, 2008

1 commit

08 Oct, 2008

1 commit

14 Aug, 2008

1 commit

13 Aug, 2008

1 commit

15 Jul, 2008

1 commit

14 Jul, 2008

1 commit

25 Jun, 2008

1 commit

  • 8d0a60032   Blackfin arch: fix up section mismatch warning ... Browse Code »

    --
    WARNING: vmlinux.o(.text+0x721a): Section mismatch in reference from the function ___fill_code_cplbtab() to the function .init.text:_fill_cplbtab()
    The function ___fill_code_cplbtab() references
    the function __init _fill_cplbtab().
    This is often because ___fill_code_cplbtab lacks a __init
    annotation or the annotation of _fill_cplbtab is wrong.

    WARNING: vmlinux.o(.text+0x7238): Section mismatch in reference from the function ___fill_code_cplbtab() to the function .init.text:_fill_cplbtab()
    The function ___fill_code_cplbtab() references
    the function __init _fill_cplbtab().
    This is often because ___fill_code_cplbtab lacks a __init
    annotation or the annotation of _fill_cplbtab is wrong.

    WARNING: vmlinux.o(.text+0x7250): Section mismatch in reference from the function ___fill_code_cplbtab() to the function .init.text:_fill_cplbtab()
    The function ___fill_code_cplbtab() references
    the function __init _fill_cplbtab().
    This is often because ___fill_code_cplbtab lacks a __init
    annotation or the annotation of _fill_cplbtab is wrong.

    WARNING: vmlinux.o(.text+0x7264): Section mismatch in reference from the function ___fill_code_cplbtab() to the function .init.text:_fill_cplbtab()
    The function ___fill_code_cplbtab() references
    the function __init _fill_cplbtab().
    This is often because ___fill_code_cplbtab lacks a __init
    annotation or the annotation of _fill_cplbtab is wrong.

    WARNING: vmlinux.o(.text+0x72a2): Section mismatch in reference from the function ___fill_data_cplbtab() to the function .init.text:_fill_cplbtab()
    The function ___fill_data_cplbtab() references
    the function __init _fill_cplbtab().
    This is often because ___fill_data_cplbtab lacks a __init
    annotation or the annotation of _fill_cplbtab is wrong.

    WARNING: vmlinux.o(.text+0x72bc): Section mismatch in reference from the function ___fill_data_cplbtab() to the function .init.text:_fill_cplbtab()
    The function ___fill_data_cplbtab() references
    the function __init _fill_cplbtab().
    This is often because ___fill_data_cplbtab lacks a __init
    annotation or the annotation of _fill_cplbtab is wrong.

    WARNING: vmlinux.o(.text+0x72d4): Section mismatch in reference from the function ___fill_data_cplbtab() to the function .init.text:_fill_cplbtab()
    The function ___fill_data_cplbtab() references
    the function __init _fill_cplbtab().
    This is often because ___fill_data_cplbtab lacks a __init
    annotation or the annotation of _fill_cplbtab is wrong.

    WARNING: vmlinux.o(.text+0x72e8): Section mismatch in reference from the function ___fill_data_cplbtab() to the function .init.text:_fill_cplbtab()
    The function ___fill_data_cplbtab() references
    the function __init _fill_cplbtab().
    This is often because ___fill_data_cplbtab lacks a __init
    annotation or the annotation of _fill_cplbtab is wrong.
    --

    Signed-off-by: Bryan Wu

    Bryan Wu
     

25 Apr, 2008

1 commit

24 Apr, 2008

2 commits

23 Apr, 2008

1 commit

  • 0e184c6b4   [Blackfin] arch: relocate MAX_SWITCH_{D,I}_CPLBS from the header to the file whe… ... Browse Code »

    …re it actually gets used.

    relocate MAX_SWITCH_{D,I}_CPLBS from the header to the file
    where it actually gets used. this way when we change
    CONFIG_MEM_SIZE in our kconfig, we only rebuild one or two files
    rather than a whole bunch that implicitly include cplb.h.

    this will also remove the ability to clear the swapcount on
    the fly, but i really dont think that functionality is important.

    ultimate goal is for CONFIG_MEM_SIZE to go away and calculate
    this value on the fly based on what u-boot programmed for us.

    Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
    Signed-off-by: Bryan Wu <cooloney@kernel.org>

    Mike Frysinger
     

22 Jan, 2008

1 commit

11 Jan, 2008

1 commit