linux-toradex.git/arch/blackfin/lib, branch v4.2.7

blackfin: license: Change ADI BSD license

2012-05-21T06:54:30+00:00

Change ADI BSD license to standart 3 clause BSD license for some blackfin arch
code requested by ADI Legal.

Signed-off-by: Sonic Zhang 
Signed-off-by: Bob Liu

blackfin: clean up string bfin_dma_5xx after rename.

2012-03-21T03:00:10+00:00

Signed-off-by: Sonic Zhang 
Signed-off-by: Bob Liu

Blackfin: strncpy: fix handling of zero lengths

2011-06-03T15:05:36+00:00

The jump to 4f will cause the NUL padding loop to run at least one time,
so if string length is zero just jump to the end.  Otherwise we wrongly
write one NUL byte when size==0.

Signed-off-by: Steven Miao 
Signed-off-by: Mike Frysinger

Fix common misspellings

2011-03-31T14:26:23+00:00

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi

Blackfin: outs[lwb]: make sure count is greater than 0

2011-03-04T06:26:55+00:00

Some devices will use the outs* funcs with a length of zero, so make sure
we do not write any data in that case.

Reported-by: Gilbert Inho 
Signed-off-by: Mike Frysinger

Blackfin: optimize strncpy a bit

2010-05-22T18:19:11+00:00

Add a little strncpy optimization which can easily cut boot time by 20%.

When the kernel is booting with initramfs, it builds up the filesystem
from a cpio archive by calling strncpy_from_user() via fs/namei.c's
do_getname() on every file in the archive (which can be lots) with a
length of PATH_MAX (1024).  This causes the dest of the strncpy to be
padded with many NUL bytes.

This optimization mostly causes these NUL bytes to be padded with a call
to memset() which is already optimized for filling memory quickly, but
the hardware loop helps a little bit as well.

Boot time measured with 'loglevel=0' so UART speed doesn't get in the way.

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

Blackfin: move string functions to normal lib/ assembly

2010-05-22T18:19:09+00:00

Since 'extern inline' doesn't work correctly in the context of the Linux
kernel (too many overriding defines), move the string functions to normal
lib/ assembly files (like the existing mem funcs).  This avoids the forced
inline all over the kernel and allows us to place them constantly in L1.

This also avoids some module failures when gcc inserts calls to string
functions but the kernel build system doesn't fully consult the library
archives.

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

Blackfin: convert to generic checksum code

2009-12-15T05:13:32+00:00

The Blackfin port only implemented an optimized version of the
csum_tcpudp_nofold function, so convert everything else to the new
generic code.

Signed-off-by: Mike Frysinger

Blackfin: mass clean up of copyright/licensing info

2009-10-07T08:36:26+00:00

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

Blackfin: fix misnomer of some I-pipe helpers

2009-09-17T01:28:30+00:00

__ipipe_{stall, unstall}_root_raw() identifiers may leave the reader
under the impression that only the virtual state is affected by these
operations, which is wrong. Pick names following the convention used
throughout the interrupt pipeline code.

Signed-off-by: Philippe Gerum 
Signed-off-by: Mike Frysinger